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1da177e4 LT |
1 | /*lcs.h*/ |
2 | ||
3 | #include <linux/interrupt.h> | |
4 | #include <linux/netdevice.h> | |
5 | #include <linux/skbuff.h> | |
6 | #include <linux/workqueue.h> | |
7 | #include <asm/ccwdev.h> | |
8 | ||
9 | #define VERSION_LCS_H "$Revision: 1.19 $" | |
10 | ||
11 | #define LCS_DBF_TEXT(level, name, text) \ | |
12 | do { \ | |
13 | debug_text_event(lcs_dbf_##name, level, text); \ | |
14 | } while (0) | |
15 | ||
16 | #define LCS_DBF_HEX(level,name,addr,len) \ | |
17 | do { \ | |
18 | debug_event(lcs_dbf_##name,level,(void*)(addr),len); \ | |
19 | } while (0) | |
20 | ||
21 | #define LCS_DBF_TEXT_(level,name,text...) \ | |
22 | do { \ | |
23 | sprintf(debug_buffer, text); \ | |
24 | debug_text_event(lcs_dbf_##name,level, debug_buffer);\ | |
25 | } while (0) | |
26 | ||
27 | /** | |
28 | * some more definitions for debug or output stuff | |
29 | */ | |
30 | #define PRINTK_HEADER " lcs: " | |
31 | ||
32 | /** | |
33 | * sysfs related stuff | |
34 | */ | |
35 | #define CARD_FROM_DEV(cdev) \ | |
36 | (struct lcs_card *) \ | |
37 | ((struct ccwgroup_device *)cdev->dev.driver_data)->dev.driver_data; | |
38 | /** | |
39 | * CCW commands used in this driver | |
40 | */ | |
41 | #define LCS_CCW_WRITE 0x01 | |
42 | #define LCS_CCW_READ 0x02 | |
43 | #define LCS_CCW_TRANSFER 0x08 | |
44 | ||
45 | /** | |
46 | * LCS device status primitives | |
47 | */ | |
48 | #define LCS_CMD_STARTLAN 0x01 | |
49 | #define LCS_CMD_STOPLAN 0x02 | |
50 | #define LCS_CMD_LANSTAT 0x04 | |
51 | #define LCS_CMD_STARTUP 0x07 | |
52 | #define LCS_CMD_SHUTDOWN 0x08 | |
53 | #define LCS_CMD_QIPASSIST 0xb2 | |
54 | #define LCS_CMD_SETIPM 0xb4 | |
55 | #define LCS_CMD_DELIPM 0xb5 | |
56 | ||
57 | #define LCS_INITIATOR_TCPIP 0x00 | |
58 | #define LCS_INITIATOR_LGW 0x01 | |
59 | #define LCS_STD_CMD_SIZE 16 | |
60 | #define LCS_MULTICAST_CMD_SIZE 404 | |
61 | ||
62 | /** | |
63 | * LCS IPASSIST MASKS,only used when multicast is switched on | |
64 | */ | |
65 | /* Not supported by LCS */ | |
66 | #define LCS_IPASS_ARP_PROCESSING 0x0001 | |
67 | #define LCS_IPASS_IN_CHECKSUM_SUPPORT 0x0002 | |
68 | #define LCS_IPASS_OUT_CHECKSUM_SUPPORT 0x0004 | |
69 | #define LCS_IPASS_IP_FRAG_REASSEMBLY 0x0008 | |
70 | #define LCS_IPASS_IP_FILTERING 0x0010 | |
71 | /* Supported by lcs 3172 */ | |
72 | #define LCS_IPASS_IPV6_SUPPORT 0x0020 | |
73 | #define LCS_IPASS_MULTICAST_SUPPORT 0x0040 | |
74 | ||
75 | /** | |
76 | * LCS sense byte definitions | |
77 | */ | |
78 | #define LCS_SENSE_INTERFACE_DISCONNECT 0x01 | |
79 | #define LCS_SENSE_EQUIPMENT_CHECK 0x10 | |
80 | #define LCS_SENSE_BUS_OUT_CHECK 0x20 | |
81 | #define LCS_SENSE_INTERVENTION_REQUIRED 0x40 | |
82 | #define LCS_SENSE_CMD_REJECT 0x80 | |
83 | #define LCS_SENSE_RESETTING_EVENT 0x0080 | |
84 | #define LCS_SENSE_DEVICE_ONLINE 0x0020 | |
85 | ||
86 | /** | |
87 | * LCS packet type definitions | |
88 | */ | |
89 | #define LCS_FRAME_TYPE_CONTROL 0 | |
90 | #define LCS_FRAME_TYPE_ENET 1 | |
91 | #define LCS_FRAME_TYPE_TR 2 | |
92 | #define LCS_FRAME_TYPE_FDDI 7 | |
93 | #define LCS_FRAME_TYPE_AUTO -1 | |
94 | ||
95 | /** | |
96 | * some more definitions,we will sort them later | |
97 | */ | |
98 | #define LCS_ILLEGAL_OFFSET 0xffff | |
99 | #define LCS_IOBUFFERSIZE 0x5000 | |
100 | #define LCS_NUM_BUFFS 8 /* needs to be power of 2 */ | |
101 | #define LCS_MAC_LENGTH 6 | |
102 | #define LCS_INVALID_PORT_NO -1 | |
103 | #define LCS_LANCMD_TIMEOUT_DEFAULT 5 | |
104 | ||
105 | /** | |
106 | * Multicast state | |
107 | */ | |
108 | #define LCS_IPM_STATE_SET_REQUIRED 0 | |
109 | #define LCS_IPM_STATE_DEL_REQUIRED 1 | |
110 | #define LCS_IPM_STATE_ON_CARD 2 | |
111 | ||
112 | /** | |
113 | * LCS IP Assist declarations | |
114 | * seems to be only used for multicast | |
115 | */ | |
116 | #define LCS_IPASS_ARP_PROCESSING 0x0001 | |
117 | #define LCS_IPASS_INBOUND_CSUM_SUPP 0x0002 | |
118 | #define LCS_IPASS_OUTBOUND_CSUM_SUPP 0x0004 | |
119 | #define LCS_IPASS_IP_FRAG_REASSEMBLY 0x0008 | |
120 | #define LCS_IPASS_IP_FILTERING 0x0010 | |
121 | #define LCS_IPASS_IPV6_SUPPORT 0x0020 | |
122 | #define LCS_IPASS_MULTICAST_SUPPORT 0x0040 | |
123 | ||
124 | /** | |
125 | * LCS Buffer states | |
126 | */ | |
127 | enum lcs_buffer_states { | |
128 | BUF_STATE_EMPTY, /* buffer is empty */ | |
129 | BUF_STATE_LOCKED, /* buffer is locked, don't touch */ | |
130 | BUF_STATE_READY, /* buffer is ready for read/write */ | |
131 | BUF_STATE_PROCESSED, | |
132 | }; | |
133 | ||
134 | /** | |
135 | * LCS Channel State Machine declarations | |
136 | */ | |
137 | enum lcs_channel_states { | |
138 | CH_STATE_INIT, | |
139 | CH_STATE_HALTED, | |
140 | CH_STATE_STOPPED, | |
141 | CH_STATE_RUNNING, | |
142 | CH_STATE_SUSPENDED, | |
143 | CH_STATE_CLEARED, | |
144 | }; | |
145 | ||
146 | /** | |
147 | * LCS device state machine | |
148 | */ | |
149 | enum lcs_dev_states { | |
150 | DEV_STATE_DOWN, | |
151 | DEV_STATE_UP, | |
152 | DEV_STATE_RECOVER, | |
153 | }; | |
154 | ||
155 | enum lcs_threads { | |
156 | LCS_SET_MC_THREAD = 1, | |
157 | LCS_STARTLAN_THREAD = 2, | |
158 | LCS_STOPLAN_THREAD = 4, | |
159 | LCS_STARTUP_THREAD = 8, | |
160 | }; | |
161 | /** | |
162 | * LCS struct declarations | |
163 | */ | |
164 | struct lcs_header { | |
165 | __u16 offset; | |
166 | __u8 type; | |
167 | __u8 slot; | |
168 | } __attribute__ ((packed)); | |
169 | ||
170 | struct lcs_ip_mac_pair { | |
171 | __u32 ip_addr; | |
172 | __u8 mac_addr[LCS_MAC_LENGTH]; | |
173 | __u8 reserved[2]; | |
174 | } __attribute__ ((packed)); | |
175 | ||
176 | struct lcs_ipm_list { | |
177 | struct list_head list; | |
178 | struct lcs_ip_mac_pair ipm; | |
179 | __u8 ipm_state; | |
180 | }; | |
181 | ||
182 | struct lcs_cmd { | |
183 | __u16 offset; | |
184 | __u8 type; | |
185 | __u8 slot; | |
186 | __u8 cmd_code; | |
187 | __u8 initiator; | |
188 | __u16 sequence_no; | |
189 | __u16 return_code; | |
190 | union { | |
191 | struct { | |
192 | __u8 lan_type; | |
193 | __u8 portno; | |
194 | __u16 parameter_count; | |
195 | __u8 operator_flags[3]; | |
196 | __u8 reserved[3]; | |
197 | } lcs_std_cmd; | |
198 | struct { | |
199 | __u16 unused1; | |
200 | __u16 buff_size; | |
201 | __u8 unused2[6]; | |
202 | } lcs_startup; | |
203 | struct { | |
204 | __u8 lan_type; | |
205 | __u8 portno; | |
206 | __u8 unused[10]; | |
207 | __u8 mac_addr[LCS_MAC_LENGTH]; | |
208 | __u32 num_packets_deblocked; | |
209 | __u32 num_packets_blocked; | |
210 | __u32 num_packets_tx_on_lan; | |
211 | __u32 num_tx_errors_detected; | |
212 | __u32 num_tx_packets_disgarded; | |
213 | __u32 num_packets_rx_from_lan; | |
214 | __u32 num_rx_errors_detected; | |
215 | __u32 num_rx_discarded_nobuffs_avail; | |
216 | __u32 num_rx_packets_too_large; | |
217 | } lcs_lanstat_cmd; | |
218 | #ifdef CONFIG_IP_MULTICAST | |
219 | struct { | |
220 | __u8 lan_type; | |
221 | __u8 portno; | |
222 | __u16 num_ip_pairs; | |
223 | __u16 ip_assists_supported; | |
224 | __u16 ip_assists_enabled; | |
225 | __u16 version; | |
226 | struct { | |
227 | struct lcs_ip_mac_pair | |
228 | ip_mac_pair[32]; | |
229 | __u32 response_data; | |
230 | } lcs_ipass_ctlmsg __attribute ((packed)); | |
231 | } lcs_qipassist __attribute__ ((packed)); | |
232 | #endif /*CONFIG_IP_MULTICAST */ | |
233 | } cmd __attribute__ ((packed)); | |
234 | } __attribute__ ((packed)); | |
235 | ||
236 | /** | |
237 | * Forward declarations. | |
238 | */ | |
239 | struct lcs_card; | |
240 | struct lcs_channel; | |
241 | ||
242 | /** | |
243 | * Definition of an lcs buffer. | |
244 | */ | |
245 | struct lcs_buffer { | |
246 | enum lcs_buffer_states state; | |
247 | void *data; | |
248 | int count; | |
249 | /* Callback for completion notification. */ | |
250 | void (*callback)(struct lcs_channel *, struct lcs_buffer *); | |
251 | }; | |
252 | ||
253 | struct lcs_reply { | |
254 | struct list_head list; | |
255 | __u16 sequence_no; | |
256 | atomic_t refcnt; | |
257 | /* Callback for completion notification. */ | |
258 | void (*callback)(struct lcs_card *, struct lcs_cmd *); | |
259 | wait_queue_head_t wait_q; | |
260 | struct lcs_card *card; | |
261 | int received; | |
262 | int rc; | |
263 | }; | |
264 | ||
265 | /** | |
266 | * Definition of an lcs channel | |
267 | */ | |
268 | struct lcs_channel { | |
269 | enum lcs_channel_states state; | |
270 | struct ccw_device *ccwdev; | |
271 | struct ccw1 ccws[LCS_NUM_BUFFS + 1]; | |
272 | wait_queue_head_t wait_q; | |
273 | struct tasklet_struct irq_tasklet; | |
274 | struct lcs_buffer iob[LCS_NUM_BUFFS]; | |
275 | int io_idx; | |
276 | int buf_idx; | |
277 | }; | |
278 | ||
279 | ||
280 | /** | |
281 | * definition of the lcs card | |
282 | */ | |
283 | struct lcs_card { | |
284 | spinlock_t lock; | |
285 | spinlock_t ipm_lock; | |
286 | enum lcs_dev_states state; | |
287 | struct net_device *dev; | |
288 | struct net_device_stats stats; | |
289 | unsigned short (*lan_type_trans)(struct sk_buff *skb, | |
290 | struct net_device *dev); | |
291 | struct lcs_channel read; | |
292 | struct lcs_channel write; | |
293 | struct lcs_buffer *tx_buffer; | |
294 | int tx_emitted; | |
295 | struct list_head lancmd_waiters; | |
296 | int lancmd_timeout; | |
297 | ||
298 | struct work_struct kernel_thread_starter; | |
299 | spinlock_t mask_lock; | |
300 | unsigned long thread_start_mask; | |
301 | unsigned long thread_running_mask; | |
302 | unsigned long thread_allowed_mask; | |
303 | wait_queue_head_t wait_q; | |
304 | ||
305 | #ifdef CONFIG_IP_MULTICAST | |
306 | struct list_head ipm_list; | |
307 | #endif | |
308 | __u8 mac[LCS_MAC_LENGTH]; | |
309 | __u16 ip_assists_supported; | |
310 | __u16 ip_assists_enabled; | |
311 | __s8 lan_type; | |
312 | __u32 pkt_seq; | |
313 | __u16 sequence_no; | |
314 | __s16 portno; | |
315 | /* Some info copied from probeinfo */ | |
316 | u8 device_forced; | |
317 | u8 max_port_no; | |
318 | u8 hint_port_no; | |
319 | s16 port_protocol_no; | |
320 | } __attribute__ ((aligned(8))); | |
321 |