1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3 * PS3 Platfom gelic network driver.
4 *
5 * Copyright (C) 2007 Sony Computer Entertainment Inc.
6 * Copyright 2006, 2007 Sony Corporation.
7 *
8 * This file is based on: spider_net.h
9 *
10 * (C) Copyright IBM Corp. 2005
11 *
12 * Authors : Utz Bacher <utz.bacher@de.ibm.com>
13 * Jens Osterkamp <Jens.Osterkamp@de.ibm.com>
14 */
15 #ifndef _GELIC_NET_H
16 #define _GELIC_NET_H
17
18 /* descriptors */
19 #define GELIC_NET_RX_DESCRIPTORS 128 /* num of descriptors */
20 #define GELIC_NET_TX_DESCRIPTORS 128 /* num of descriptors */
21
22 #define GELIC_NET_MAX_FRAME 2312
23 #define GELIC_NET_MAX_MTU 2294
24 #define GELIC_NET_MIN_MTU 64
25 #define GELIC_NET_RXBUF_ALIGN 128
26 #define GELIC_CARD_RX_CSUM_DEFAULT 1 /* hw chksum */
27 #define GELIC_NET_WATCHDOG_TIMEOUT 5*HZ
28 #define GELIC_NET_BROADCAST_ADDR 0xffffffffffffL
29
30 #define GELIC_NET_MC_COUNT_MAX 32 /* multicast address list */
31
32 /* virtual interrupt status register bits */
33 /* INT1 */
34 #define GELIC_CARD_TX_RAM_FULL_ERR 0x0000000000000001L
35 #define GELIC_CARD_RX_RAM_FULL_ERR 0x0000000000000002L
36 #define GELIC_CARD_TX_SHORT_FRAME_ERR 0x0000000000000004L
37 #define GELIC_CARD_TX_INVALID_DESCR_ERR 0x0000000000000008L
38 #define GELIC_CARD_RX_FIFO_FULL_ERR 0x0000000000002000L
39 #define GELIC_CARD_RX_DESCR_CHAIN_END 0x0000000000004000L
40 #define GELIC_CARD_RX_INVALID_DESCR_ERR 0x0000000000008000L
41 #define GELIC_CARD_TX_RESPONCE_ERR 0x0000000000010000L
42 #define GELIC_CARD_RX_RESPONCE_ERR 0x0000000000100000L
43 #define GELIC_CARD_TX_PROTECTION_ERR 0x0000000000400000L
44 #define GELIC_CARD_RX_PROTECTION_ERR 0x0000000004000000L
45 #define GELIC_CARD_TX_TCP_UDP_CHECKSUM_ERR 0x0000000008000000L
46 #define GELIC_CARD_PORT_STATUS_CHANGED 0x0000000020000000L
47 #define GELIC_CARD_WLAN_EVENT_RECEIVED 0x0000000040000000L
48 #define GELIC_CARD_WLAN_COMMAND_COMPLETED 0x0000000080000000L
49 /* INT 0 */
50 #define GELIC_CARD_TX_FLAGGED_DESCR 0x0004000000000000L
51 #define GELIC_CARD_RX_FLAGGED_DESCR 0x0040000000000000L
52 #define GELIC_CARD_TX_TRANSFER_END 0x0080000000000000L
53 #define GELIC_CARD_TX_DESCR_CHAIN_END 0x0100000000000000L
54 #define GELIC_CARD_NUMBER_OF_RX_FRAME 0x1000000000000000L
55 #define GELIC_CARD_ONE_TIME_COUNT_TIMER 0x4000000000000000L
56 #define GELIC_CARD_FREE_RUN_COUNT_TIMER 0x8000000000000000L
57
58 /* initial interrupt mask */
59 #define GELIC_CARD_TXINT GELIC_CARD_TX_DESCR_CHAIN_END
60
61 #define GELIC_CARD_RXINT (GELIC_CARD_RX_DESCR_CHAIN_END | \
62 GELIC_CARD_NUMBER_OF_RX_FRAME)
63
64 /* RX descriptor data_status bits */
65 enum gelic_descr_rx_status {
66 GELIC_DESCR_RXDMADU = 0x80000000, /* destination MAC addr unknown */
67 GELIC_DESCR_RXLSTFBF = 0x40000000, /* last frame buffer */
68 GELIC_DESCR_RXIPCHK = 0x20000000, /* IP checksum performed */
69 GELIC_DESCR_RXTCPCHK = 0x10000000, /* TCP/UDP checksup performed */
70 GELIC_DESCR_RXWTPKT = 0x00C00000, /*
71 * wakeup trigger packet
72 * 01: Magic Packet (TM)
73 * 10: ARP packet
74 * 11: Multicast MAC addr
75 */
76 GELIC_DESCR_RXVLNPKT = 0x00200000, /* VLAN packet */
77 /* bit 20..16 reserved */
78 GELIC_DESCR_RXRRECNUM = 0x0000ff00, /* reception receipt number */
79 /* bit 7..0 reserved */
80 };
81
82 #define GELIC_DESCR_DATA_STATUS_CHK_MASK \
83 (GELIC_DESCR_RXIPCHK | GELIC_DESCR_RXTCPCHK)
84
85 /* TX descriptor data_status bits */
86 enum gelic_descr_tx_status {
87 GELIC_DESCR_TX_TAIL = 0x00000001, /* gelic treated this
88 * descriptor was end of
89 * a tx frame
90 */
91 };
92
93 /* RX descriptor data error bits */
94 enum gelic_descr_rx_error {
95 /* bit 31 reserved */
96 GELIC_DESCR_RXALNERR = 0x40000000, /* alignement error 10/100M */
97 GELIC_DESCR_RXOVERERR = 0x20000000, /* oversize error */
98 GELIC_DESCR_RXRNTERR = 0x10000000, /* Runt error */
99 GELIC_DESCR_RXIPCHKERR = 0x08000000, /* IP checksum error */
100 GELIC_DESCR_RXTCPCHKERR = 0x04000000, /* TCP/UDP checksum error */
101 GELIC_DESCR_RXDRPPKT = 0x00100000, /* drop packet */
102 GELIC_DESCR_RXIPFMTERR = 0x00080000, /* IP packet format error */
103 /* bit 18 reserved */
104 GELIC_DESCR_RXDATAERR = 0x00020000, /* IP packet format error */
105 GELIC_DESCR_RXCALERR = 0x00010000, /* cariier extension length
106 * error */
107 GELIC_DESCR_RXCREXERR = 0x00008000, /* carrier extension error */
108 GELIC_DESCR_RXMLTCST = 0x00004000, /* multicast address frame */
109 /* bit 13..0 reserved */
110 };
111 #define GELIC_DESCR_DATA_ERROR_CHK_MASK \
112 (GELIC_DESCR_RXIPCHKERR | GELIC_DESCR_RXTCPCHKERR)
113
114 /* DMA command and status (RX and TX)*/
115 enum gelic_descr_dma_status {
116 GELIC_DESCR_DMA_COMPLETE = 0x00000000, /* used in tx */
117 GELIC_DESCR_DMA_BUFFER_FULL = 0x00000000, /* used in rx */
118 GELIC_DESCR_DMA_RESPONSE_ERROR = 0x10000000, /* used in rx, tx */
119 GELIC_DESCR_DMA_PROTECTION_ERROR = 0x20000000, /* used in rx, tx */
120 GELIC_DESCR_DMA_FRAME_END = 0x40000000, /* used in rx */
121 GELIC_DESCR_DMA_FORCE_END = 0x50000000, /* used in rx, tx */
122 GELIC_DESCR_DMA_CARDOWNED = 0xa0000000, /* used in rx, tx */
123 GELIC_DESCR_DMA_NOT_IN_USE = 0xb0000000, /* any other value */
124 };
125
126 #define GELIC_DESCR_DMA_STAT_MASK (0xf0000000)
127
128 /* tx descriptor command and status */
129 enum gelic_descr_tx_dma_status {
130 /* [19] */
131 GELIC_DESCR_TX_DMA_IKE = 0x00080000, /* IPSEC off */
132 /* [18] */
133 GELIC_DESCR_TX_DMA_FRAME_TAIL = 0x00040000, /* last descriptor of
134 * the packet
135 */
136 /* [17..16] */
137 GELIC_DESCR_TX_DMA_TCP_CHKSUM = 0x00020000, /* TCP packet */
138 GELIC_DESCR_TX_DMA_UDP_CHKSUM = 0x00030000, /* UDP packet */
139 GELIC_DESCR_TX_DMA_NO_CHKSUM = 0x00000000, /* no checksum */
140
141 /* [1] */
142 GELIC_DESCR_TX_DMA_CHAIN_END = 0x00000002, /* DMA terminated
143 * due to chain end
144 */
145 };
146
147 #define GELIC_DESCR_DMA_CMD_NO_CHKSUM \
148 (GELIC_DESCR_DMA_CARDOWNED | GELIC_DESCR_TX_DMA_IKE | \
149 GELIC_DESCR_TX_DMA_NO_CHKSUM)
150
151 #define GELIC_DESCR_DMA_CMD_TCP_CHKSUM \
152 (GELIC_DESCR_DMA_CARDOWNED | GELIC_DESCR_TX_DMA_IKE | \
153 GELIC_DESCR_TX_DMA_TCP_CHKSUM)
154
155 #define GELIC_DESCR_DMA_CMD_UDP_CHKSUM \
156 (GELIC_DESCR_DMA_CARDOWNED | GELIC_DESCR_TX_DMA_IKE | \
157 GELIC_DESCR_TX_DMA_UDP_CHKSUM)
158
159 enum gelic_descr_rx_dma_status {
160 /* [ 1 ] */
161 GELIC_DESCR_RX_DMA_CHAIN_END = 0x00000002, /* DMA terminated
162 * due to chain end
163 */
164 };
165
166 /* for lv1_net_control */
167 enum gelic_lv1_net_control_code {
168 GELIC_LV1_GET_MAC_ADDRESS = 1,
169 GELIC_LV1_GET_ETH_PORT_STATUS = 2,
170 GELIC_LV1_SET_NEGOTIATION_MODE = 3,
171 GELIC_LV1_GET_VLAN_ID = 4,
172 GELIC_LV1_SET_WOL = 5,
173 GELIC_LV1_GET_CHANNEL = 6,
174 GELIC_LV1_POST_WLAN_CMD = 9,
175 GELIC_LV1_GET_WLAN_CMD_RESULT = 10,
176 GELIC_LV1_GET_WLAN_EVENT = 11,
177 };
178
179 /* for GELIC_LV1_SET_WOL */
180 enum gelic_lv1_wol_command {
181 GELIC_LV1_WOL_MAGIC_PACKET = 1,
182 GELIC_LV1_WOL_ADD_MATCH_ADDR = 6,
183 GELIC_LV1_WOL_DELETE_MATCH_ADDR = 7,
184 };
185
186 /* for GELIC_LV1_WOL_MAGIC_PACKET */
187 enum gelic_lv1_wol_mp_arg {
188 GELIC_LV1_WOL_MP_DISABLE = 0,
189 GELIC_LV1_WOL_MP_ENABLE = 1,
190 };
191
192 /* for GELIC_LV1_WOL_{ADD,DELETE}_MATCH_ADDR */
193 enum gelic_lv1_wol_match_arg {
194 GELIC_LV1_WOL_MATCH_INDIVIDUAL = 0,
195 GELIC_LV1_WOL_MATCH_ALL = 1,
196 };
197
198 /* status returened from GET_ETH_PORT_STATUS */
199 enum gelic_lv1_ether_port_status {
200 GELIC_LV1_ETHER_LINK_UP = 0x0000000000000001L,
201 GELIC_LV1_ETHER_FULL_DUPLEX = 0x0000000000000002L,
202 GELIC_LV1_ETHER_AUTO_NEG = 0x0000000000000004L,
203
204 GELIC_LV1_ETHER_SPEED_10 = 0x0000000000000010L,
205 GELIC_LV1_ETHER_SPEED_100 = 0x0000000000000020L,
206 GELIC_LV1_ETHER_SPEED_1000 = 0x0000000000000040L,
207 GELIC_LV1_ETHER_SPEED_MASK = 0x0000000000000070L,
208 };
209
210 enum gelic_lv1_vlan_index {
211 /* for outgoing packets */
212 GELIC_LV1_VLAN_TX_ETHERNET_0 = 0x0000000000000002L,
213 GELIC_LV1_VLAN_TX_WIRELESS = 0x0000000000000003L,
214
215 /* for incoming packets */
216 GELIC_LV1_VLAN_RX_ETHERNET_0 = 0x0000000000000012L,
217 GELIC_LV1_VLAN_RX_WIRELESS = 0x0000000000000013L,
218 };
219
220 enum gelic_lv1_phy {
221 GELIC_LV1_PHY_ETHERNET_0 = 0x0000000000000002L,
222 };
223
224 enum gelic_port_type {
225 GELIC_PORT_ETHERNET_0 = 0,
226 GELIC_PORT_WIRELESS = 1,
227 GELIC_PORT_MAX
228 };
229
230 /* As defined by the gelic hardware device. */
231 struct gelic_hw_regs {
232 struct {
233 __be32 dev_addr;
234 __be32 size;
235 } __packed payload;
236 __be32 next_descr_addr;
237 __be32 dmac_cmd_status;
238 __be32 result_size;
239 __be32 valid_size; /* all zeroes for tx */
240 __be32 data_status;
241 __be32 data_error; /* all zeroes for tx */
242 } __packed;
243
244 struct gelic_chain_link {
245 dma_addr_t cpu_addr;
246 unsigned int size;
247 };
248
249 struct gelic_descr {
250 struct gelic_hw_regs hw_regs;
251 struct gelic_chain_link link;
252 struct sk_buff *skb;
253 struct gelic_descr *next;
254 struct gelic_descr *prev;
255 } __attribute__((aligned(32)));
256
257 struct gelic_descr_chain {
258 /* we walk from tail to head */
259 struct gelic_descr *head;
260 struct gelic_descr *tail;
261 };
262
263 struct gelic_vlan_id {
264 u16 tx;
265 u16 rx;
266 };
267
268 struct gelic_card {
269 struct napi_struct napi;
270 struct net_device *netdev[GELIC_PORT_MAX];
271 /*
272 * hypervisor requires irq_status should be
273 * 8 bytes aligned, but u64 member is
274 * always disposed in that manner
275 */
276 u64 irq_status;
277 u64 irq_mask;
278
279 struct ps3_system_bus_device *dev;
280 struct gelic_vlan_id vlan[GELIC_PORT_MAX];
281 int vlan_required;
282
283 struct gelic_descr_chain tx_chain;
284 struct gelic_descr_chain rx_chain;
285 /*
286 * tx_lock guards tx descriptor list and
287 * tx_dma_progress.
288 */
289 spinlock_t tx_lock;
290 int tx_dma_progress;
291
292 struct work_struct tx_timeout_task;
293 atomic_t tx_timeout_task_counter;
294 wait_queue_head_t waitq;
295
296 /* only first user should up the card */
297 struct mutex updown_lock;
298 atomic_t users;
299
300 u64 ether_port_status;
301 int link_mode;
302
303 /* original address returned by kzalloc */
304 void *unalign;
305
306 /*
307 * each netdevice has copy of irq
308 */
309 unsigned int irq;
310 struct gelic_descr *tx_top, *rx_top;
311 struct gelic_descr descr[]; /* must be the last */
312 };
313
314 struct gelic_port {
315 struct gelic_card *card;
316 struct net_device *netdev;
317 enum gelic_port_type type;
318 long priv[]; /* long for alignment */
319 };
320
port_to_card(struct gelic_port * p)321 static inline struct gelic_card *port_to_card(struct gelic_port *p)
322 {
323 return p->card;
324 }
port_to_netdev(struct gelic_port * p)325 static inline struct net_device *port_to_netdev(struct gelic_port *p)
326 {
327 return p->netdev;
328 }
netdev_card(struct net_device * d)329 static inline struct gelic_card *netdev_card(struct net_device *d)
330 {
331 return ((struct gelic_port *)netdev_priv(d))->card;
332 }
netdev_port(struct net_device * d)333 static inline struct gelic_port *netdev_port(struct net_device *d)
334 {
335 return (struct gelic_port *)netdev_priv(d);
336 }
ctodev(struct gelic_card * card)337 static inline struct device *ctodev(struct gelic_card *card)
338 {
339 return &card->dev->core;
340 }
bus_id(struct gelic_card * card)341 static inline u64 bus_id(struct gelic_card *card)
342 {
343 return card->dev->bus_id;
344 }
dev_id(struct gelic_card * card)345 static inline u64 dev_id(struct gelic_card *card)
346 {
347 return card->dev->dev_id;
348 }
349
port_priv(struct gelic_port * port)350 static inline void *port_priv(struct gelic_port *port)
351 {
352 return port->priv;
353 }
354
355 int gelic_card_set_irq_mask(struct gelic_card *card, u64 mask);
356 /* shared netdev ops */
357 void gelic_card_up(struct gelic_card *card);
358 void gelic_card_down(struct gelic_card *card);
359 int gelic_net_open(struct net_device *netdev);
360 int gelic_net_stop(struct net_device *netdev);
361 netdev_tx_t gelic_net_xmit(struct sk_buff *skb, struct net_device *netdev);
362 void gelic_net_set_multi(struct net_device *netdev);
363 void gelic_net_tx_timeout(struct net_device *netdev, unsigned int txqueue);
364 int gelic_net_setup_netdev(struct net_device *netdev, struct gelic_card *card);
365
366 /* shared ethtool ops */
367 void gelic_net_get_drvinfo(struct net_device *netdev,
368 struct ethtool_drvinfo *info);
369 void gelic_net_poll_controller(struct net_device *netdev);
370
371 #endif /* _GELIC_NET_H */
372