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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/* $Id: sunqe.h,v 1.13 2000/02/09 11:15:42 davem Exp $
2 * sunqe.h: Definitions for the Sun QuadEthernet driver.
3 *
4 * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu)
5 */
6
7#ifndef _SUNQE_H
8#define _SUNQE_H
9
10/* QEC global registers. */
11#define GLOB_CTRL 0x00UL /* Control */
12#define GLOB_STAT 0x04UL /* Status */
13#define GLOB_PSIZE 0x08UL /* Packet Size */
14#define GLOB_MSIZE 0x0cUL /* Local-memory Size */
15#define GLOB_RSIZE 0x10UL /* Receive partition size */
16#define GLOB_TSIZE 0x14UL /* Transmit partition size */
17#define GLOB_REG_SIZE 0x18UL
18
19#define GLOB_CTRL_MMODE 0x40000000 /* MACE qec mode */
20#define GLOB_CTRL_BMODE 0x10000000 /* BigMAC qec mode */
21#define GLOB_CTRL_EPAR 0x00000020 /* Enable parity */
22#define GLOB_CTRL_ACNTRL 0x00000018 /* SBUS arbitration control */
23#define GLOB_CTRL_B64 0x00000004 /* 64 byte dvma bursts */
24#define GLOB_CTRL_B32 0x00000002 /* 32 byte dvma bursts */
25#define GLOB_CTRL_B16 0x00000000 /* 16 byte dvma bursts */
26#define GLOB_CTRL_RESET 0x00000001 /* Reset the QEC */
27
28#define GLOB_STAT_TX 0x00000008 /* BigMAC Transmit IRQ */
29#define GLOB_STAT_RX 0x00000004 /* BigMAC Receive IRQ */
30#define GLOB_STAT_BM 0x00000002 /* BigMAC Global IRQ */
31#define GLOB_STAT_ER 0x00000001 /* BigMAC Error IRQ */
32
33#define GLOB_PSIZE_2048 0x00 /* 2k packet size */
34#define GLOB_PSIZE_4096 0x01 /* 4k packet size */
35#define GLOB_PSIZE_6144 0x10 /* 6k packet size */
36#define GLOB_PSIZE_8192 0x11 /* 8k packet size */
37
38/* In MACE mode, there are four qe channels. Each channel has it's own
39 * status bits in the QEC status register. This macro picks out the
40 * ones you want.
41 */
42#define GLOB_STAT_PER_QE(status, channel) (((status) >> ((channel) * 4)) & 0xf)
43
44/* The following registers are for per-qe channel information/status. */
45#define CREG_CTRL 0x00UL /* Control */
46#define CREG_STAT 0x04UL /* Status */
47#define CREG_RXDS 0x08UL /* RX descriptor ring ptr */
48#define CREG_TXDS 0x0cUL /* TX descriptor ring ptr */
49#define CREG_RIMASK 0x10UL /* RX Interrupt Mask */
50#define CREG_TIMASK 0x14UL /* TX Interrupt Mask */
51#define CREG_QMASK 0x18UL /* QEC Error Interrupt Mask */
52#define CREG_MMASK 0x1cUL /* MACE Error Interrupt Mask */
53#define CREG_RXWBUFPTR 0x20UL /* Local memory rx write ptr */
54#define CREG_RXRBUFPTR 0x24UL /* Local memory rx read ptr */
55#define CREG_TXWBUFPTR 0x28UL /* Local memory tx write ptr */
56#define CREG_TXRBUFPTR 0x2cUL /* Local memory tx read ptr */
57#define CREG_CCNT 0x30UL /* Collision Counter */
58#define CREG_PIPG 0x34UL /* Inter-Frame Gap */
59#define CREG_REG_SIZE 0x38UL
60
61#define CREG_CTRL_RXOFF 0x00000004 /* Disable this qe's receiver*/
62#define CREG_CTRL_RESET 0x00000002 /* Reset this qe channel */
63#define CREG_CTRL_TWAKEUP 0x00000001 /* Transmitter Wakeup, 'go'. */
64
65#define CREG_STAT_EDEFER 0x10000000 /* Excessive Defers */
66#define CREG_STAT_CLOSS 0x08000000 /* Carrier Loss */
67#define CREG_STAT_ERETRIES 0x04000000 /* More than 16 retries */
68#define CREG_STAT_LCOLL 0x02000000 /* Late TX Collision */
69#define CREG_STAT_FUFLOW 0x01000000 /* FIFO Underflow */
70#define CREG_STAT_JERROR 0x00800000 /* Jabber Error */
71#define CREG_STAT_BERROR 0x00400000 /* Babble Error */
72#define CREG_STAT_TXIRQ 0x00200000 /* Transmit Interrupt */
73#define CREG_STAT_CCOFLOW 0x00100000 /* TX Coll-counter Overflow */
74#define CREG_STAT_TXDERROR 0x00080000 /* TX Descriptor is bogus */
75#define CREG_STAT_TXLERR 0x00040000 /* Late Transmit Error */
76#define CREG_STAT_TXPERR 0x00020000 /* Transmit Parity Error */
77#define CREG_STAT_TXSERR 0x00010000 /* Transmit SBUS error ack */
78#define CREG_STAT_RCCOFLOW 0x00001000 /* RX Coll-counter Overflow */
79#define CREG_STAT_RUOFLOW 0x00000800 /* Runt Counter Overflow */
80#define CREG_STAT_MCOFLOW 0x00000400 /* Missed Counter Overflow */
81#define CREG_STAT_RXFOFLOW 0x00000200 /* RX FIFO Overflow */
82#define CREG_STAT_RLCOLL 0x00000100 /* RX Late Collision */
83#define CREG_STAT_FCOFLOW 0x00000080 /* Frame Counter Overflow */
84#define CREG_STAT_CECOFLOW 0x00000040 /* CRC Error-counter Overflow*/
85#define CREG_STAT_RXIRQ 0x00000020 /* Receive Interrupt */
86#define CREG_STAT_RXDROP 0x00000010 /* Dropped a RX'd packet */
87#define CREG_STAT_RXSMALL 0x00000008 /* Receive buffer too small */
88#define CREG_STAT_RXLERR 0x00000004 /* Receive Late Error */
89#define CREG_STAT_RXPERR 0x00000002 /* Receive Parity Error */
90#define CREG_STAT_RXSERR 0x00000001 /* Receive SBUS Error ACK */
91
92#define CREG_STAT_ERRORS (CREG_STAT_EDEFER|CREG_STAT_CLOSS|CREG_STAT_ERETRIES| \
93 CREG_STAT_LCOLL|CREG_STAT_FUFLOW|CREG_STAT_JERROR| \
94 CREG_STAT_BERROR|CREG_STAT_CCOFLOW|CREG_STAT_TXDERROR| \
95 CREG_STAT_TXLERR|CREG_STAT_TXPERR|CREG_STAT_TXSERR| \
96 CREG_STAT_RCCOFLOW|CREG_STAT_RUOFLOW|CREG_STAT_MCOFLOW| \
97 CREG_STAT_RXFOFLOW|CREG_STAT_RLCOLL|CREG_STAT_FCOFLOW| \
98 CREG_STAT_CECOFLOW|CREG_STAT_RXDROP|CREG_STAT_RXSMALL| \
99 CREG_STAT_RXLERR|CREG_STAT_RXPERR|CREG_STAT_RXSERR)
100
101#define CREG_QMASK_COFLOW 0x00100000 /* CollCntr overflow */
102#define CREG_QMASK_TXDERROR 0x00080000 /* TXD error */
103#define CREG_QMASK_TXLERR 0x00040000 /* TX late error */
104#define CREG_QMASK_TXPERR 0x00020000 /* TX parity error */
105#define CREG_QMASK_TXSERR 0x00010000 /* TX sbus error ack */
106#define CREG_QMASK_RXDROP 0x00000010 /* RX drop */
107#define CREG_QMASK_RXBERROR 0x00000008 /* RX buffer error */
108#define CREG_QMASK_RXLEERR 0x00000004 /* RX late error */
109#define CREG_QMASK_RXPERR 0x00000002 /* RX parity error */
110#define CREG_QMASK_RXSERR 0x00000001 /* RX sbus error ack */
111
112#define CREG_MMASK_EDEFER 0x10000000 /* Excess defer */
113#define CREG_MMASK_CLOSS 0x08000000 /* Carrier loss */
114#define CREG_MMASK_ERETRY 0x04000000 /* Excess retry */
115#define CREG_MMASK_LCOLL 0x02000000 /* Late collision error */
116#define CREG_MMASK_UFLOW 0x01000000 /* Underflow */
117#define CREG_MMASK_JABBER 0x00800000 /* Jabber error */
118#define CREG_MMASK_BABBLE 0x00400000 /* Babble error */
119#define CREG_MMASK_OFLOW 0x00000800 /* Overflow */
120#define CREG_MMASK_RXCOLL 0x00000400 /* RX Coll-Cntr overflow */
121#define CREG_MMASK_RPKT 0x00000200 /* Runt pkt overflow */
122#define CREG_MMASK_MPKT 0x00000100 /* Missed pkt overflow */
123
124#define CREG_PIPG_TENAB 0x00000020 /* Enable Throttle */
125#define CREG_PIPG_MMODE 0x00000010 /* Manual Mode */
126#define CREG_PIPG_WMASK 0x0000000f /* SBUS Wait Mask */
127
128/* Per-channel AMD 79C940 MACE registers. */
129#define MREGS_RXFIFO 0x00UL /* Receive FIFO */
130#define MREGS_TXFIFO 0x01UL /* Transmit FIFO */
131#define MREGS_TXFCNTL 0x02UL /* Transmit Frame Control */
132#define MREGS_TXFSTAT 0x03UL /* Transmit Frame Status */
133#define MREGS_TXRCNT 0x04UL /* Transmit Retry Count */
134#define MREGS_RXFCNTL 0x05UL /* Receive Frame Control */
135#define MREGS_RXFSTAT 0x06UL /* Receive Frame Status */
136#define MREGS_FFCNT 0x07UL /* FIFO Frame Count */
137#define MREGS_IREG 0x08UL /* Interrupt Register */
138#define MREGS_IMASK 0x09UL /* Interrupt Mask */
139#define MREGS_POLL 0x0aUL /* POLL Register */
140#define MREGS_BCONFIG 0x0bUL /* BIU Config */
141#define MREGS_FCONFIG 0x0cUL /* FIFO Config */
142#define MREGS_MCONFIG 0x0dUL /* MAC Config */
143#define MREGS_PLSCONFIG 0x0eUL /* PLS Config */
144#define MREGS_PHYCONFIG 0x0fUL /* PHY Config */
145#define MREGS_CHIPID1 0x10UL /* Chip-ID, low bits */
146#define MREGS_CHIPID2 0x11UL /* Chip-ID, high bits */
147#define MREGS_IACONFIG 0x12UL /* Internal Address Config */
148 /* 0x13UL, reserved */
149#define MREGS_FILTER 0x14UL /* Logical Address Filter */
150#define MREGS_ETHADDR 0x15UL /* Our Ethernet Address */
151 /* 0x16UL, reserved */
152 /* 0x17UL, reserved */
153#define MREGS_MPCNT 0x18UL /* Missed Packet Count */
154 /* 0x19UL, reserved */
155#define MREGS_RPCNT 0x1aUL /* Runt Packet Count */
156#define MREGS_RCCNT 0x1bUL /* RX Collision Count */
157 /* 0x1cUL, reserved */
158#define MREGS_UTEST 0x1dUL /* User Test */
159#define MREGS_RTEST1 0x1eUL /* Reserved Test 1 */
160#define MREGS_RTEST2 0x1fUL /* Reserved Test 2 */
161#define MREGS_REG_SIZE 0x20UL
162
163#define MREGS_TXFCNTL_DRETRY 0x80 /* Retry disable */
164#define MREGS_TXFCNTL_DFCS 0x08 /* Disable TX FCS */
165#define MREGS_TXFCNTL_AUTOPAD 0x01 /* TX auto pad */
166
167#define MREGS_TXFSTAT_VALID 0x80 /* TX valid */
168#define MREGS_TXFSTAT_UNDERFLOW 0x40 /* TX underflow */
169#define MREGS_TXFSTAT_LCOLL 0x20 /* TX late collision */
170#define MREGS_TXFSTAT_MRETRY 0x10 /* TX > 1 retries */
171#define MREGS_TXFSTAT_ORETRY 0x08 /* TX 1 retry */
172#define MREGS_TXFSTAT_PDEFER 0x04 /* TX pkt deferred */
173#define MREGS_TXFSTAT_CLOSS 0x02 /* TX carrier lost */
174#define MREGS_TXFSTAT_RERROR 0x01 /* TX retry error */
175
176#define MREGS_TXRCNT_EDEFER 0x80 /* TX Excess defers */
177#define MREGS_TXRCNT_CMASK 0x0f /* TX retry count */
178
179#define MREGS_RXFCNTL_LOWLAT 0x08 /* RX low latency */
180#define MREGS_RXFCNTL_AREJECT 0x04 /* RX addr match rej */
181#define MREGS_RXFCNTL_AUTOSTRIP 0x01 /* RX auto strip */
182
183#define MREGS_RXFSTAT_OVERFLOW 0x80 /* RX overflow */
184#define MREGS_RXFSTAT_LCOLL 0x40 /* RX late collision */
185#define MREGS_RXFSTAT_FERROR 0x20 /* RX framing error */
186#define MREGS_RXFSTAT_FCSERROR 0x10 /* RX FCS error */
187#define MREGS_RXFSTAT_RBCNT 0x0f /* RX msg byte count */
188
189#define MREGS_FFCNT_RX 0xf0 /* RX FIFO frame cnt */
190#define MREGS_FFCNT_TX 0x0f /* TX FIFO frame cnt */
191
192#define MREGS_IREG_JABBER 0x80 /* IRQ Jabber error */
193#define MREGS_IREG_BABBLE 0x40 /* IRQ Babble error */
194#define MREGS_IREG_COLL 0x20 /* IRQ Collision error */
195#define MREGS_IREG_RCCO 0x10 /* IRQ Collision cnt overflow */
196#define MREGS_IREG_RPKTCO 0x08 /* IRQ Runt packet count overflow */
197#define MREGS_IREG_MPKTCO 0x04 /* IRQ missed packet cnt overflow */
198#define MREGS_IREG_RXIRQ 0x02 /* IRQ RX'd a packet */
199#define MREGS_IREG_TXIRQ 0x01 /* IRQ TX'd a packet */
200
201#define MREGS_IMASK_BABBLE 0x40 /* IMASK Babble errors */
202#define MREGS_IMASK_COLL 0x20 /* IMASK Collision errors */
203#define MREGS_IMASK_MPKTCO 0x04 /* IMASK Missed pkt cnt overflow */
204#define MREGS_IMASK_RXIRQ 0x02 /* IMASK RX interrupts */
205#define MREGS_IMASK_TXIRQ 0x01 /* IMASK TX interrupts */
206
207#define MREGS_POLL_TXVALID 0x80 /* TX is valid */
208#define MREGS_POLL_TDTR 0x40 /* TX data transfer request */
209#define MREGS_POLL_RDTR 0x20 /* RX data transfer request */
210
211#define MREGS_BCONFIG_BSWAP 0x40 /* Byte Swap */
212#define MREGS_BCONFIG_4TS 0x00 /* 4byte transmit start point */
213#define MREGS_BCONFIG_16TS 0x10 /* 16byte transmit start point */
214#define MREGS_BCONFIG_64TS 0x20 /* 64byte transmit start point */
215#define MREGS_BCONFIG_112TS 0x30 /* 112byte transmit start point */
216#define MREGS_BCONFIG_RESET 0x01 /* SW-Reset the MACE */
217
218#define MREGS_FCONFIG_TXF8 0x00 /* TX fifo 8 write cycles */
219#define MREGS_FCONFIG_TXF32 0x80 /* TX fifo 32 write cycles */
220#define MREGS_FCONFIG_TXF16 0x40 /* TX fifo 16 write cycles */
221#define MREGS_FCONFIG_RXF64 0x20 /* RX fifo 64 write cycles */
222#define MREGS_FCONFIG_RXF32 0x10 /* RX fifo 32 write cycles */
223#define MREGS_FCONFIG_RXF16 0x00 /* RX fifo 16 write cycles */
224#define MREGS_FCONFIG_TFWU 0x08 /* TX fifo watermark update */
225#define MREGS_FCONFIG_RFWU 0x04 /* RX fifo watermark update */
226#define MREGS_FCONFIG_TBENAB 0x02 /* TX burst enable */
227#define MREGS_FCONFIG_RBENAB 0x01 /* RX burst enable */
228
229#define MREGS_MCONFIG_PROMISC 0x80 /* Promiscuous mode enable */
230#define MREGS_MCONFIG_TPDDISAB 0x40 /* TX 2part deferral enable */
231#define MREGS_MCONFIG_MBAENAB 0x20 /* Modified backoff enable */
232#define MREGS_MCONFIG_RPADISAB 0x08 /* RX physical addr disable */
233#define MREGS_MCONFIG_RBDISAB 0x04 /* RX broadcast disable */
234#define MREGS_MCONFIG_TXENAB 0x02 /* Enable transmitter */
235#define MREGS_MCONFIG_RXENAB 0x01 /* Enable receiver */
236
237#define MREGS_PLSCONFIG_TXMS 0x08 /* TX mode select */
238#define MREGS_PLSCONFIG_GPSI 0x06 /* Use GPSI connector */
239#define MREGS_PLSCONFIG_DAI 0x04 /* Use DAI connector */
240#define MREGS_PLSCONFIG_TP 0x02 /* Use TwistedPair connector */
241#define MREGS_PLSCONFIG_AUI 0x00 /* Use AUI connector */
242#define MREGS_PLSCONFIG_IOENAB 0x01 /* PLS I/O enable */
243
244#define MREGS_PHYCONFIG_LSTAT 0x80 /* Link status */
245#define MREGS_PHYCONFIG_LTESTDIS 0x40 /* Disable link test logic */
246#define MREGS_PHYCONFIG_RXPOLARITY 0x20 /* RX polarity */
247#define MREGS_PHYCONFIG_APCDISAB 0x10 /* AutoPolarityCorrect disab */
248#define MREGS_PHYCONFIG_LTENAB 0x08 /* Select low threshold */
249#define MREGS_PHYCONFIG_AUTO 0x04 /* Connector port auto-sel */
250#define MREGS_PHYCONFIG_RWU 0x02 /* Remote WakeUp */
251#define MREGS_PHYCONFIG_AW 0x01 /* Auto Wakeup */
252
253#define MREGS_IACONFIG_ACHNGE 0x80 /* Do address change */
254#define MREGS_IACONFIG_PARESET 0x04 /* Physical address reset */
255#define MREGS_IACONFIG_LARESET 0x02 /* Logical address reset */
256
257#define MREGS_UTEST_RTRENAB 0x80 /* Enable resv test register */
258#define MREGS_UTEST_RTRDISAB 0x40 /* Disab resv test register */
259#define MREGS_UTEST_RPACCEPT 0x20 /* Accept runt packets */
260#define MREGS_UTEST_FCOLL 0x10 /* Force collision status */
261#define MREGS_UTEST_FCSENAB 0x08 /* Enable FCS on RX */
262#define MREGS_UTEST_INTLOOPM 0x06 /* Intern lpback w/MENDEC */
263#define MREGS_UTEST_INTLOOP 0x04 /* Intern lpback */
264#define MREGS_UTEST_EXTLOOP 0x02 /* Extern lpback */
265#define MREGS_UTEST_NOLOOP 0x00 /* No loopback */
266
267struct qe_rxd {
268 u32 rx_flags;
269 u32 rx_addr;
270};
271
272#define RXD_OWN 0x80000000 /* Ownership. */
273#define RXD_UPDATE 0x10000000 /* Being Updated? */
274#define RXD_LENGTH 0x000007ff /* Packet Length. */
275
276struct qe_txd {
277 u32 tx_flags;
278 u32 tx_addr;
279};
280
281#define TXD_OWN 0x80000000 /* Ownership. */
282#define TXD_SOP 0x40000000 /* Start Of Packet */
283#define TXD_EOP 0x20000000 /* End Of Packet */
284#define TXD_UPDATE 0x10000000 /* Being Updated? */
285#define TXD_LENGTH 0x000007ff /* Packet Length. */
286
287#define TX_RING_MAXSIZE 256
288#define RX_RING_MAXSIZE 256
289
290#define TX_RING_SIZE 16
291#define RX_RING_SIZE 16
292
293#define NEXT_RX(num) (((num) + 1) & (RX_RING_MAXSIZE - 1))
294#define NEXT_TX(num) (((num) + 1) & (TX_RING_MAXSIZE - 1))
295#define PREV_RX(num) (((num) - 1) & (RX_RING_MAXSIZE - 1))
296#define PREV_TX(num) (((num) - 1) & (TX_RING_MAXSIZE - 1))
297
298#define TX_BUFFS_AVAIL(qp) \
299 (((qp)->tx_old <= (qp)->tx_new) ? \
300 (qp)->tx_old + (TX_RING_SIZE - 1) - (qp)->tx_new : \
301 (qp)->tx_old - (qp)->tx_new - 1)
302
303struct qe_init_block {
304 struct qe_rxd qe_rxd[RX_RING_MAXSIZE];
305 struct qe_txd qe_txd[TX_RING_MAXSIZE];
306};
307
308#define qib_offset(mem, elem) \
309((__u32)((unsigned long)(&(((struct qe_init_block *)0)->mem[elem]))))
310
311struct sunqe;
312
313struct sunqec {
314 void __iomem *gregs; /* QEC Global Registers */
315 struct sunqe *qes[4]; /* Each child MACE */
316 unsigned int qec_bursts; /* Support burst sizes */
Grant Likely2dc11582010-08-06 09:25:50 -0600317 struct platform_device *op; /* QEC's OF device */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700318 struct sunqec *next_module; /* List of all QECs in system */
319};
320
321#define PKT_BUF_SZ 1664
322#define RXD_PKT_SZ 1664
323
324struct sunqe_buffers {
325 u8 tx_buf[TX_RING_SIZE][PKT_BUF_SZ];
326 u8 __pad[2];
327 u8 rx_buf[RX_RING_SIZE][PKT_BUF_SZ];
328};
329
330#define qebuf_offset(mem, elem) \
331((__u32)((unsigned long)(&(((struct sunqe_buffers *)0)->mem[elem][0]))))
332
333struct sunqe {
334 void __iomem *qcregs; /* QEC per-channel Registers */
335 void __iomem *mregs; /* Per-channel MACE Registers */
336 struct qe_init_block *qe_block; /* RX and TX descriptors */
337 __u32 qblock_dvma; /* RX and TX descriptors */
338 spinlock_t lock; /* Protects txfull state */
339 int rx_new, rx_old; /* RX ring extents */
340 int tx_new, tx_old; /* TX ring extents */
341 struct sunqe_buffers *buffers; /* CPU visible address. */
342 __u32 buffers_dvma; /* DVMA visible address. */
343 struct sunqec *parent;
344 u8 mconfig; /* Base MACE mconfig value */
Grant Likely2dc11582010-08-06 09:25:50 -0600345 struct platform_device *op; /* QE's OF device struct */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700346 struct net_device *dev; /* QE's netdevice struct */
347 int channel; /* Who am I? */
348};
349
350#endif /* !(_SUNQE_H) */