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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 LCS_DBF_TEXT(level, name, text) \
10 do { \
11 debug_text_event(lcs_dbf_##name, level, text); \
12 } while (0)
13
14#define LCS_DBF_HEX(level,name,addr,len) \
15do { \
16 debug_event(lcs_dbf_##name,level,(void*)(addr),len); \
17} while (0)
18
19/* Allow to sort out low debug levels early to avoid wasted sprints */
20static inline int lcs_dbf_passes(debug_info_t *dbf_grp, int level)
21{
22 return (level <= dbf_grp->level);
23}
24
25#define LCS_DBF_TEXT_(level,name,text...) \
26 do { \
27 if (lcs_dbf_passes(lcs_dbf_##name, level)) { \
28 sprintf(debug_buffer, text); \
29 debug_text_event(lcs_dbf_##name, level, debug_buffer); \
30 } \
31 } while (0)
32
33/**
34 * sysfs related stuff
35 */
36#define CARD_FROM_DEV(cdev) \
37 (struct lcs_card *) dev_get_drvdata( \
38 &((struct ccwgroup_device *)dev_get_drvdata(&cdev->dev))->dev);
39
40/**
41 * Enum for classifying detected devices.
42 */
43enum lcs_channel_types {
44 /* Device is not a channel */
45 lcs_channel_type_none,
46
47 /* Device is a 2216 channel */
48 lcs_channel_type_parallel,
49
50 /* Device is a 2216 channel */
51 lcs_channel_type_2216,
52
53 /* Device is a OSA2 card */
54 lcs_channel_type_osa2
55};
56
57/**
58 * CCW commands used in this driver
59 */
60#define LCS_CCW_WRITE 0x01
61#define LCS_CCW_READ 0x02
62#define LCS_CCW_TRANSFER 0x08
63
64/**
65 * LCS device status primitives
66 */
67#define LCS_CMD_STARTLAN 0x01
68#define LCS_CMD_STOPLAN 0x02
69#define LCS_CMD_LANSTAT 0x04
70#define LCS_CMD_STARTUP 0x07
71#define LCS_CMD_SHUTDOWN 0x08
72#define LCS_CMD_QIPASSIST 0xb2
73#define LCS_CMD_SETIPM 0xb4
74#define LCS_CMD_DELIPM 0xb5
75
76#define LCS_INITIATOR_TCPIP 0x00
77#define LCS_INITIATOR_LGW 0x01
78#define LCS_STD_CMD_SIZE 16
79#define LCS_MULTICAST_CMD_SIZE 404
80
81/**
82 * LCS IPASSIST MASKS,only used when multicast is switched on
83 */
84/* Not supported by LCS */
85#define LCS_IPASS_ARP_PROCESSING 0x0001
86#define LCS_IPASS_IN_CHECKSUM_SUPPORT 0x0002
87#define LCS_IPASS_OUT_CHECKSUM_SUPPORT 0x0004
88#define LCS_IPASS_IP_FRAG_REASSEMBLY 0x0008
89#define LCS_IPASS_IP_FILTERING 0x0010
90/* Supported by lcs 3172 */
91#define LCS_IPASS_IPV6_SUPPORT 0x0020
92#define LCS_IPASS_MULTICAST_SUPPORT 0x0040
93
94/**
95 * LCS sense byte definitions
96 */
97#define LCS_SENSE_BYTE_0 0
98#define LCS_SENSE_BYTE_1 1
99#define LCS_SENSE_BYTE_2 2
100#define LCS_SENSE_BYTE_3 3
101#define LCS_SENSE_INTERFACE_DISCONNECT 0x01
102#define LCS_SENSE_EQUIPMENT_CHECK 0x10
103#define LCS_SENSE_BUS_OUT_CHECK 0x20
104#define LCS_SENSE_INTERVENTION_REQUIRED 0x40
105#define LCS_SENSE_CMD_REJECT 0x80
106#define LCS_SENSE_RESETTING_EVENT 0x80
107#define LCS_SENSE_DEVICE_ONLINE 0x20
108
109/**
110 * LCS packet type definitions
111 */
112#define LCS_FRAME_TYPE_CONTROL 0
113#define LCS_FRAME_TYPE_ENET 1
114#define LCS_FRAME_TYPE_TR 2
115#define LCS_FRAME_TYPE_FDDI 7
116#define LCS_FRAME_TYPE_AUTO -1
117
118/**
119 * some more definitions,we will sort them later
120 */
121#define LCS_ILLEGAL_OFFSET 0xffff
122#define LCS_IOBUFFERSIZE 0x5000
123#define LCS_NUM_BUFFS 32 /* needs to be power of 2 */
124#define LCS_MAC_LENGTH 6
125#define LCS_INVALID_PORT_NO -1
126#define LCS_LANCMD_TIMEOUT_DEFAULT 5
127
128/**
129 * Multicast state
130 */
131#define LCS_IPM_STATE_SET_REQUIRED 0
132#define LCS_IPM_STATE_DEL_REQUIRED 1
133#define LCS_IPM_STATE_ON_CARD 2
134
135/**
136 * LCS IP Assist declarations
137 * seems to be only used for multicast
138 */
139#define LCS_IPASS_ARP_PROCESSING 0x0001
140#define LCS_IPASS_INBOUND_CSUM_SUPP 0x0002
141#define LCS_IPASS_OUTBOUND_CSUM_SUPP 0x0004
142#define LCS_IPASS_IP_FRAG_REASSEMBLY 0x0008
143#define LCS_IPASS_IP_FILTERING 0x0010
144#define LCS_IPASS_IPV6_SUPPORT 0x0020
145#define LCS_IPASS_MULTICAST_SUPPORT 0x0040
146
147/**
148 * LCS Buffer states
149 */
150enum lcs_buffer_states {
151 LCS_BUF_STATE_EMPTY, /* buffer is empty */
152 LCS_BUF_STATE_LOCKED, /* buffer is locked, don't touch */
153 LCS_BUF_STATE_READY, /* buffer is ready for read/write */
154 LCS_BUF_STATE_PROCESSED,
155};
156
157/**
158 * LCS Channel State Machine declarations
159 */
160enum lcs_channel_states {
161 LCS_CH_STATE_INIT,
162 LCS_CH_STATE_HALTED,
163 LCS_CH_STATE_STOPPED,
164 LCS_CH_STATE_RUNNING,
165 LCS_CH_STATE_SUSPENDED,
166 LCS_CH_STATE_CLEARED,
167 LCS_CH_STATE_ERROR,
168};
169
170/**
171 * LCS device state machine
172 */
173enum lcs_dev_states {
174 DEV_STATE_DOWN,
175 DEV_STATE_UP,
176 DEV_STATE_RECOVER,
177};
178
179enum lcs_threads {
180 LCS_SET_MC_THREAD = 1,
181 LCS_RECOVERY_THREAD = 2,
182};
183
184/**
185 * LCS struct declarations
186 */
187struct lcs_header {
188 __u16 offset;
189 __u8 type;
190 __u8 slot;
191} __attribute__ ((packed));
192
193struct lcs_ip_mac_pair {
194 __be32 ip_addr;
195 __u8 mac_addr[LCS_MAC_LENGTH];
196 __u8 reserved[2];
197} __attribute__ ((packed));
198
199struct lcs_ipm_list {
200 struct list_head list;
201 struct lcs_ip_mac_pair ipm;
202 __u8 ipm_state;
203};
204
205struct lcs_cmd {
206 __u16 offset;
207 __u8 type;
208 __u8 slot;
209 __u8 cmd_code;
210 __u8 initiator;
211 __u16 sequence_no;
212 __u16 return_code;
213 union {
214 struct {
215 __u8 lan_type;
216 __u8 portno;
217 __u16 parameter_count;
218 __u8 operator_flags[3];
219 __u8 reserved[3];
220 } lcs_std_cmd;
221 struct {
222 __u16 unused1;
223 __u16 buff_size;
224 __u8 unused2[6];
225 } lcs_startup;
226 struct {
227 __u8 lan_type;
228 __u8 portno;
229 __u8 unused[10];
230 __u8 mac_addr[LCS_MAC_LENGTH];
231 __u32 num_packets_deblocked;
232 __u32 num_packets_blocked;
233 __u32 num_packets_tx_on_lan;
234 __u32 num_tx_errors_detected;
235 __u32 num_tx_packets_disgarded;
236 __u32 num_packets_rx_from_lan;
237 __u32 num_rx_errors_detected;
238 __u32 num_rx_discarded_nobuffs_avail;
239 __u32 num_rx_packets_too_large;
240 } lcs_lanstat_cmd;
241#ifdef CONFIG_IP_MULTICAST
242 struct {
243 __u8 lan_type;
244 __u8 portno;
245 __u16 num_ip_pairs;
246 __u16 ip_assists_supported;
247 __u16 ip_assists_enabled;
248 __u16 version;
249 struct {
250 struct lcs_ip_mac_pair
251 ip_mac_pair[32];
252 __u32 response_data;
253 } lcs_ipass_ctlmsg __attribute ((packed));
254 } lcs_qipassist __attribute__ ((packed));
255#endif /*CONFIG_IP_MULTICAST */
256 } cmd __attribute__ ((packed));
257} __attribute__ ((packed));
258
259/**
260 * Forward declarations.
261 */
262struct lcs_card;
263struct lcs_channel;
264
265/**
266 * Definition of an lcs buffer.
267 */
268struct lcs_buffer {
269 enum lcs_buffer_states state;
270 void *data;
271 int count;
272 /* Callback for completion notification. */
273 void (*callback)(struct lcs_channel *, struct lcs_buffer *);
274};
275
276struct lcs_reply {
277 struct list_head list;
278 __u16 sequence_no;
279 atomic_t refcnt;
280 /* Callback for completion notification. */
281 void (*callback)(struct lcs_card *, struct lcs_cmd *);
282 wait_queue_head_t wait_q;
283 struct lcs_card *card;
284 int received;
285 int rc;
286};
287
288/**
289 * Definition of an lcs channel
290 */
291struct lcs_channel {
292 enum lcs_channel_states state;
293 struct ccw_device *ccwdev;
294 struct ccw1 ccws[LCS_NUM_BUFFS + 1];
295 wait_queue_head_t wait_q;
296 struct tasklet_struct irq_tasklet;
297 struct lcs_buffer iob[LCS_NUM_BUFFS];
298 int io_idx;
299 int buf_idx;
300};
301
302
303/**
304 * definition of the lcs card
305 */
306struct lcs_card {
307 spinlock_t lock;
308 spinlock_t ipm_lock;
309 enum lcs_dev_states state;
310 struct net_device *dev;
311 struct net_device_stats stats;
312 __be16 (*lan_type_trans)(struct sk_buff *skb,
313 struct net_device *dev);
314 struct ccwgroup_device *gdev;
315 struct lcs_channel read;
316 struct lcs_channel write;
317 struct lcs_buffer *tx_buffer;
318 int tx_emitted;
319 struct list_head lancmd_waiters;
320 int lancmd_timeout;
321
322 struct work_struct kernel_thread_starter;
323 spinlock_t mask_lock;
324 unsigned long thread_start_mask;
325 unsigned long thread_running_mask;
326 unsigned long thread_allowed_mask;
327 wait_queue_head_t wait_q;
328
329#ifdef CONFIG_IP_MULTICAST
330 struct list_head ipm_list;
331#endif
332 __u8 mac[LCS_MAC_LENGTH];
333 __u16 ip_assists_supported;
334 __u16 ip_assists_enabled;
335 __s8 lan_type;
336 __u32 pkt_seq;
337 __u16 sequence_no;
338 __s16 portno;
339 /* Some info copied from probeinfo */
340 u8 device_forced;
341 u8 max_port_no;
342 u8 hint_port_no;
343 s16 port_protocol_no;
344} __attribute__ ((aligned(8)));
345
1/* SPDX-License-Identifier: GPL-2.0 */
2/*lcs.h*/
3
4#include <linux/interrupt.h>
5#include <linux/netdevice.h>
6#include <linux/skbuff.h>
7#include <linux/workqueue.h>
8#include <linux/refcount.h>
9#include <asm/ccwdev.h>
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) \
17do { \
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 if (debug_level_enabled(lcs_dbf_##name, level)) { \
24 sprintf(debug_buffer, text); \
25 debug_text_event(lcs_dbf_##name, level, debug_buffer); \
26 } \
27 } while (0)
28
29/**
30 * sysfs related stuff
31 */
32#define CARD_FROM_DEV(cdev) \
33 (struct lcs_card *) dev_get_drvdata( \
34 &((struct ccwgroup_device *)dev_get_drvdata(&cdev->dev))->dev);
35
36/**
37 * Enum for classifying detected devices.
38 */
39enum lcs_channel_types {
40 /* Device is not a channel */
41 lcs_channel_type_none,
42
43 /* Device is a 2216 channel */
44 lcs_channel_type_parallel,
45
46 /* Device is a 2216 channel */
47 lcs_channel_type_2216,
48
49 /* Device is a OSA2 card */
50 lcs_channel_type_osa2
51};
52
53/**
54 * CCW commands used in this driver
55 */
56#define LCS_CCW_WRITE 0x01
57#define LCS_CCW_READ 0x02
58#define LCS_CCW_TRANSFER 0x08
59
60/**
61 * LCS device status primitives
62 */
63#define LCS_CMD_STARTLAN 0x01
64#define LCS_CMD_STOPLAN 0x02
65#define LCS_CMD_LANSTAT 0x04
66#define LCS_CMD_STARTUP 0x07
67#define LCS_CMD_SHUTDOWN 0x08
68#define LCS_CMD_QIPASSIST 0xb2
69#define LCS_CMD_SETIPM 0xb4
70#define LCS_CMD_DELIPM 0xb5
71
72#define LCS_INITIATOR_TCPIP 0x00
73#define LCS_INITIATOR_LGW 0x01
74#define LCS_STD_CMD_SIZE 16
75#define LCS_MULTICAST_CMD_SIZE 404
76
77/**
78 * LCS IPASSIST MASKS,only used when multicast is switched on
79 */
80/* Not supported by LCS */
81#define LCS_IPASS_ARP_PROCESSING 0x0001
82#define LCS_IPASS_IN_CHECKSUM_SUPPORT 0x0002
83#define LCS_IPASS_OUT_CHECKSUM_SUPPORT 0x0004
84#define LCS_IPASS_IP_FRAG_REASSEMBLY 0x0008
85#define LCS_IPASS_IP_FILTERING 0x0010
86/* Supported by lcs 3172 */
87#define LCS_IPASS_IPV6_SUPPORT 0x0020
88#define LCS_IPASS_MULTICAST_SUPPORT 0x0040
89
90/**
91 * LCS sense byte definitions
92 */
93#define LCS_SENSE_BYTE_0 0
94#define LCS_SENSE_BYTE_1 1
95#define LCS_SENSE_BYTE_2 2
96#define LCS_SENSE_BYTE_3 3
97#define LCS_SENSE_INTERFACE_DISCONNECT 0x01
98#define LCS_SENSE_EQUIPMENT_CHECK 0x10
99#define LCS_SENSE_BUS_OUT_CHECK 0x20
100#define LCS_SENSE_INTERVENTION_REQUIRED 0x40
101#define LCS_SENSE_CMD_REJECT 0x80
102#define LCS_SENSE_RESETTING_EVENT 0x80
103#define LCS_SENSE_DEVICE_ONLINE 0x20
104
105/**
106 * LCS packet type definitions
107 */
108#define LCS_FRAME_TYPE_CONTROL 0
109#define LCS_FRAME_TYPE_ENET 1
110#define LCS_FRAME_TYPE_TR 2
111#define LCS_FRAME_TYPE_FDDI 7
112#define LCS_FRAME_TYPE_AUTO -1
113
114/**
115 * some more definitions,we will sort them later
116 */
117#define LCS_ILLEGAL_OFFSET 0xffff
118#define LCS_IOBUFFERSIZE 0x5000
119#define LCS_NUM_BUFFS 32 /* needs to be power of 2 */
120#define LCS_MAC_LENGTH 6
121#define LCS_INVALID_PORT_NO -1
122#define LCS_LANCMD_TIMEOUT_DEFAULT 5
123
124/**
125 * Multicast state
126 */
127#define LCS_IPM_STATE_SET_REQUIRED 0
128#define LCS_IPM_STATE_DEL_REQUIRED 1
129#define LCS_IPM_STATE_ON_CARD 2
130
131/**
132 * LCS IP Assist declarations
133 * seems to be only used for multicast
134 */
135#define LCS_IPASS_ARP_PROCESSING 0x0001
136#define LCS_IPASS_INBOUND_CSUM_SUPP 0x0002
137#define LCS_IPASS_OUTBOUND_CSUM_SUPP 0x0004
138#define LCS_IPASS_IP_FRAG_REASSEMBLY 0x0008
139#define LCS_IPASS_IP_FILTERING 0x0010
140#define LCS_IPASS_IPV6_SUPPORT 0x0020
141#define LCS_IPASS_MULTICAST_SUPPORT 0x0040
142
143/**
144 * LCS Buffer states
145 */
146enum lcs_buffer_states {
147 LCS_BUF_STATE_EMPTY, /* buffer is empty */
148 LCS_BUF_STATE_LOCKED, /* buffer is locked, don't touch */
149 LCS_BUF_STATE_READY, /* buffer is ready for read/write */
150 LCS_BUF_STATE_PROCESSED,
151};
152
153/**
154 * LCS Channel State Machine declarations
155 */
156enum lcs_channel_states {
157 LCS_CH_STATE_INIT,
158 LCS_CH_STATE_HALTED,
159 LCS_CH_STATE_STOPPED,
160 LCS_CH_STATE_RUNNING,
161 LCS_CH_STATE_SUSPENDED,
162 LCS_CH_STATE_CLEARED,
163 LCS_CH_STATE_ERROR,
164};
165
166/**
167 * LCS device state machine
168 */
169enum lcs_dev_states {
170 DEV_STATE_DOWN,
171 DEV_STATE_UP,
172 DEV_STATE_RECOVER,
173};
174
175enum lcs_threads {
176 LCS_SET_MC_THREAD = 1,
177 LCS_RECOVERY_THREAD = 2,
178};
179
180/**
181 * LCS struct declarations
182 */
183struct lcs_header {
184 __u16 offset;
185 __u8 type;
186 __u8 slot;
187} __attribute__ ((packed));
188
189struct lcs_ip_mac_pair {
190 __be32 ip_addr;
191 __u8 mac_addr[LCS_MAC_LENGTH];
192 __u8 reserved[2];
193} __attribute__ ((packed));
194
195struct lcs_ipm_list {
196 struct list_head list;
197 struct lcs_ip_mac_pair ipm;
198 __u8 ipm_state;
199};
200
201struct lcs_cmd {
202 __u16 offset;
203 __u8 type;
204 __u8 slot;
205 __u8 cmd_code;
206 __u8 initiator;
207 __u16 sequence_no;
208 __u16 return_code;
209 union {
210 struct {
211 __u8 lan_type;
212 __u8 portno;
213 __u16 parameter_count;
214 __u8 operator_flags[3];
215 __u8 reserved[3];
216 } lcs_std_cmd;
217 struct {
218 __u16 unused1;
219 __u16 buff_size;
220 __u8 unused2[6];
221 } lcs_startup;
222 struct {
223 __u8 lan_type;
224 __u8 portno;
225 __u8 unused[10];
226 __u8 mac_addr[LCS_MAC_LENGTH];
227 __u32 num_packets_deblocked;
228 __u32 num_packets_blocked;
229 __u32 num_packets_tx_on_lan;
230 __u32 num_tx_errors_detected;
231 __u32 num_tx_packets_disgarded;
232 __u32 num_packets_rx_from_lan;
233 __u32 num_rx_errors_detected;
234 __u32 num_rx_discarded_nobuffs_avail;
235 __u32 num_rx_packets_too_large;
236 } lcs_lanstat_cmd;
237#ifdef CONFIG_IP_MULTICAST
238 struct {
239 __u8 lan_type;
240 __u8 portno;
241 __u16 num_ip_pairs;
242 __u16 ip_assists_supported;
243 __u16 ip_assists_enabled;
244 __u16 version;
245 struct {
246 struct lcs_ip_mac_pair
247 ip_mac_pair[32];
248 __u32 response_data;
249 } lcs_ipass_ctlmsg __attribute ((packed));
250 } lcs_qipassist __attribute__ ((packed));
251#endif /*CONFIG_IP_MULTICAST */
252 } cmd __attribute__ ((packed));
253} __attribute__ ((packed));
254
255/**
256 * Forward declarations.
257 */
258struct lcs_card;
259struct lcs_channel;
260
261/**
262 * Definition of an lcs buffer.
263 */
264struct lcs_buffer {
265 enum lcs_buffer_states state;
266 void *data;
267 int count;
268 /* Callback for completion notification. */
269 void (*callback)(struct lcs_channel *, struct lcs_buffer *);
270};
271
272struct lcs_reply {
273 struct list_head list;
274 __u16 sequence_no;
275 refcount_t refcnt;
276 /* Callback for completion notification. */
277 void (*callback)(struct lcs_card *, struct lcs_cmd *);
278 wait_queue_head_t wait_q;
279 struct lcs_card *card;
280 struct timer_list timer;
281 int received;
282 int rc;
283};
284
285/**
286 * Definition of an lcs channel
287 */
288struct lcs_channel {
289 enum lcs_channel_states state;
290 struct ccw_device *ccwdev;
291 struct ccw1 ccws[LCS_NUM_BUFFS + 1];
292 wait_queue_head_t wait_q;
293 struct tasklet_struct irq_tasklet;
294 struct lcs_buffer iob[LCS_NUM_BUFFS];
295 int io_idx;
296 int buf_idx;
297};
298
299
300/**
301 * definition of the lcs card
302 */
303struct lcs_card {
304 spinlock_t lock;
305 spinlock_t ipm_lock;
306 enum lcs_dev_states state;
307 struct net_device *dev;
308 struct net_device_stats stats;
309 __be16 (*lan_type_trans)(struct sk_buff *skb,
310 struct net_device *dev);
311 struct ccwgroup_device *gdev;
312 struct lcs_channel read;
313 struct lcs_channel write;
314 struct lcs_buffer *tx_buffer;
315 int tx_emitted;
316 struct list_head lancmd_waiters;
317 int lancmd_timeout;
318
319 struct work_struct kernel_thread_starter;
320 spinlock_t mask_lock;
321 unsigned long thread_start_mask;
322 unsigned long thread_running_mask;
323 unsigned long thread_allowed_mask;
324 wait_queue_head_t wait_q;
325
326#ifdef CONFIG_IP_MULTICAST
327 struct list_head ipm_list;
328#endif
329 __u8 mac[LCS_MAC_LENGTH];
330 __u16 ip_assists_supported;
331 __u16 ip_assists_enabled;
332 __s8 lan_type;
333 __u32 pkt_seq;
334 __u16 sequence_no;
335 __s16 portno;
336 /* Some info copied from probeinfo */
337 u8 device_forced;
338 u8 max_port_no;
339 u8 hint_port_no;
340 s16 port_protocol_no;
341} __attribute__ ((aligned(8)));
342