udf: improve error management in udf_CS0toUTF8()
[linux/fpc-iii.git] / drivers / s390 / net / lcs.h
blob150fcb4cebc3510e5a4e45dfb61f63728cd5ed7d
1 /*lcs.h*/
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>
9 #define LCS_DBF_TEXT(level, name, text) \
10 do { \
11 debug_text_event(lcs_dbf_##name, level, text); \
12 } while (0)
14 #define LCS_DBF_HEX(level,name,addr,len) \
15 do { \
16 debug_event(lcs_dbf_##name,level,(void*)(addr),len); \
17 } while (0)
19 #define LCS_DBF_TEXT_(level,name,text...) \
20 do { \
21 if (debug_level_enabled(lcs_dbf_##name, level)) { \
22 sprintf(debug_buffer, text); \
23 debug_text_event(lcs_dbf_##name, level, debug_buffer); \
24 } \
25 } while (0)
27 /**
28 * sysfs related stuff
30 #define CARD_FROM_DEV(cdev) \
31 (struct lcs_card *) dev_get_drvdata( \
32 &((struct ccwgroup_device *)dev_get_drvdata(&cdev->dev))->dev);
34 /**
35 * Enum for classifying detected devices.
37 enum lcs_channel_types {
38 /* Device is not a channel */
39 lcs_channel_type_none,
41 /* Device is a 2216 channel */
42 lcs_channel_type_parallel,
44 /* Device is a 2216 channel */
45 lcs_channel_type_2216,
47 /* Device is a OSA2 card */
48 lcs_channel_type_osa2
51 /**
52 * CCW commands used in this driver
54 #define LCS_CCW_WRITE 0x01
55 #define LCS_CCW_READ 0x02
56 #define LCS_CCW_TRANSFER 0x08
58 /**
59 * LCS device status primitives
61 #define LCS_CMD_STARTLAN 0x01
62 #define LCS_CMD_STOPLAN 0x02
63 #define LCS_CMD_LANSTAT 0x04
64 #define LCS_CMD_STARTUP 0x07
65 #define LCS_CMD_SHUTDOWN 0x08
66 #define LCS_CMD_QIPASSIST 0xb2
67 #define LCS_CMD_SETIPM 0xb4
68 #define LCS_CMD_DELIPM 0xb5
70 #define LCS_INITIATOR_TCPIP 0x00
71 #define LCS_INITIATOR_LGW 0x01
72 #define LCS_STD_CMD_SIZE 16
73 #define LCS_MULTICAST_CMD_SIZE 404
75 /**
76 * LCS IPASSIST MASKS,only used when multicast is switched on
78 /* Not supported by LCS */
79 #define LCS_IPASS_ARP_PROCESSING 0x0001
80 #define LCS_IPASS_IN_CHECKSUM_SUPPORT 0x0002
81 #define LCS_IPASS_OUT_CHECKSUM_SUPPORT 0x0004
82 #define LCS_IPASS_IP_FRAG_REASSEMBLY 0x0008
83 #define LCS_IPASS_IP_FILTERING 0x0010
84 /* Supported by lcs 3172 */
85 #define LCS_IPASS_IPV6_SUPPORT 0x0020
86 #define LCS_IPASS_MULTICAST_SUPPORT 0x0040
88 /**
89 * LCS sense byte definitions
91 #define LCS_SENSE_BYTE_0 0
92 #define LCS_SENSE_BYTE_1 1
93 #define LCS_SENSE_BYTE_2 2
94 #define LCS_SENSE_BYTE_3 3
95 #define LCS_SENSE_INTERFACE_DISCONNECT 0x01
96 #define LCS_SENSE_EQUIPMENT_CHECK 0x10
97 #define LCS_SENSE_BUS_OUT_CHECK 0x20
98 #define LCS_SENSE_INTERVENTION_REQUIRED 0x40
99 #define LCS_SENSE_CMD_REJECT 0x80
100 #define LCS_SENSE_RESETTING_EVENT 0x80
101 #define LCS_SENSE_DEVICE_ONLINE 0x20
104 * LCS packet type definitions
106 #define LCS_FRAME_TYPE_CONTROL 0
107 #define LCS_FRAME_TYPE_ENET 1
108 #define LCS_FRAME_TYPE_TR 2
109 #define LCS_FRAME_TYPE_FDDI 7
110 #define LCS_FRAME_TYPE_AUTO -1
113 * some more definitions,we will sort them later
115 #define LCS_ILLEGAL_OFFSET 0xffff
116 #define LCS_IOBUFFERSIZE 0x5000
117 #define LCS_NUM_BUFFS 32 /* needs to be power of 2 */
118 #define LCS_MAC_LENGTH 6
119 #define LCS_INVALID_PORT_NO -1
120 #define LCS_LANCMD_TIMEOUT_DEFAULT 5
123 * Multicast state
125 #define LCS_IPM_STATE_SET_REQUIRED 0
126 #define LCS_IPM_STATE_DEL_REQUIRED 1
127 #define LCS_IPM_STATE_ON_CARD 2
130 * LCS IP Assist declarations
131 * seems to be only used for multicast
133 #define LCS_IPASS_ARP_PROCESSING 0x0001
134 #define LCS_IPASS_INBOUND_CSUM_SUPP 0x0002
135 #define LCS_IPASS_OUTBOUND_CSUM_SUPP 0x0004
136 #define LCS_IPASS_IP_FRAG_REASSEMBLY 0x0008
137 #define LCS_IPASS_IP_FILTERING 0x0010
138 #define LCS_IPASS_IPV6_SUPPORT 0x0020
139 #define LCS_IPASS_MULTICAST_SUPPORT 0x0040
142 * LCS Buffer states
144 enum lcs_buffer_states {
145 LCS_BUF_STATE_EMPTY, /* buffer is empty */
146 LCS_BUF_STATE_LOCKED, /* buffer is locked, don't touch */
147 LCS_BUF_STATE_READY, /* buffer is ready for read/write */
148 LCS_BUF_STATE_PROCESSED,
152 * LCS Channel State Machine declarations
154 enum lcs_channel_states {
155 LCS_CH_STATE_INIT,
156 LCS_CH_STATE_HALTED,
157 LCS_CH_STATE_STOPPED,
158 LCS_CH_STATE_RUNNING,
159 LCS_CH_STATE_SUSPENDED,
160 LCS_CH_STATE_CLEARED,
161 LCS_CH_STATE_ERROR,
165 * LCS device state machine
167 enum lcs_dev_states {
168 DEV_STATE_DOWN,
169 DEV_STATE_UP,
170 DEV_STATE_RECOVER,
173 enum lcs_threads {
174 LCS_SET_MC_THREAD = 1,
175 LCS_RECOVERY_THREAD = 2,
179 * LCS struct declarations
181 struct lcs_header {
182 __u16 offset;
183 __u8 type;
184 __u8 slot;
185 } __attribute__ ((packed));
187 struct lcs_ip_mac_pair {
188 __be32 ip_addr;
189 __u8 mac_addr[LCS_MAC_LENGTH];
190 __u8 reserved[2];
191 } __attribute__ ((packed));
193 struct lcs_ipm_list {
194 struct list_head list;
195 struct lcs_ip_mac_pair ipm;
196 __u8 ipm_state;
199 struct lcs_cmd {
200 __u16 offset;
201 __u8 type;
202 __u8 slot;
203 __u8 cmd_code;
204 __u8 initiator;
205 __u16 sequence_no;
206 __u16 return_code;
207 union {
208 struct {
209 __u8 lan_type;
210 __u8 portno;
211 __u16 parameter_count;
212 __u8 operator_flags[3];
213 __u8 reserved[3];
214 } lcs_std_cmd;
215 struct {
216 __u16 unused1;
217 __u16 buff_size;
218 __u8 unused2[6];
219 } lcs_startup;
220 struct {
221 __u8 lan_type;
222 __u8 portno;
223 __u8 unused[10];
224 __u8 mac_addr[LCS_MAC_LENGTH];
225 __u32 num_packets_deblocked;
226 __u32 num_packets_blocked;
227 __u32 num_packets_tx_on_lan;
228 __u32 num_tx_errors_detected;
229 __u32 num_tx_packets_disgarded;
230 __u32 num_packets_rx_from_lan;
231 __u32 num_rx_errors_detected;
232 __u32 num_rx_discarded_nobuffs_avail;
233 __u32 num_rx_packets_too_large;
234 } lcs_lanstat_cmd;
235 #ifdef CONFIG_IP_MULTICAST
236 struct {
237 __u8 lan_type;
238 __u8 portno;
239 __u16 num_ip_pairs;
240 __u16 ip_assists_supported;
241 __u16 ip_assists_enabled;
242 __u16 version;
243 struct {
244 struct lcs_ip_mac_pair
245 ip_mac_pair[32];
246 __u32 response_data;
247 } lcs_ipass_ctlmsg __attribute ((packed));
248 } lcs_qipassist __attribute__ ((packed));
249 #endif /*CONFIG_IP_MULTICAST */
250 } cmd __attribute__ ((packed));
251 } __attribute__ ((packed));
254 * Forward declarations.
256 struct lcs_card;
257 struct lcs_channel;
260 * Definition of an lcs buffer.
262 struct lcs_buffer {
263 enum lcs_buffer_states state;
264 void *data;
265 int count;
266 /* Callback for completion notification. */
267 void (*callback)(struct lcs_channel *, struct lcs_buffer *);
270 struct lcs_reply {
271 struct list_head list;
272 __u16 sequence_no;
273 atomic_t refcnt;
274 /* Callback for completion notification. */
275 void (*callback)(struct lcs_card *, struct lcs_cmd *);
276 wait_queue_head_t wait_q;
277 struct lcs_card *card;
278 int received;
279 int rc;
283 * Definition of an lcs channel
285 struct lcs_channel {
286 enum lcs_channel_states state;
287 struct ccw_device *ccwdev;
288 struct ccw1 ccws[LCS_NUM_BUFFS + 1];
289 wait_queue_head_t wait_q;
290 struct tasklet_struct irq_tasklet;
291 struct lcs_buffer iob[LCS_NUM_BUFFS];
292 int io_idx;
293 int buf_idx;
298 * definition of the lcs card
300 struct lcs_card {
301 spinlock_t lock;
302 spinlock_t ipm_lock;
303 enum lcs_dev_states state;
304 struct net_device *dev;
305 struct net_device_stats stats;
306 __be16 (*lan_type_trans)(struct sk_buff *skb,
307 struct net_device *dev);
308 struct ccwgroup_device *gdev;
309 struct lcs_channel read;
310 struct lcs_channel write;
311 struct lcs_buffer *tx_buffer;
312 int tx_emitted;
313 struct list_head lancmd_waiters;
314 int lancmd_timeout;
316 struct work_struct kernel_thread_starter;
317 spinlock_t mask_lock;
318 unsigned long thread_start_mask;
319 unsigned long thread_running_mask;
320 unsigned long thread_allowed_mask;
321 wait_queue_head_t wait_q;
323 #ifdef CONFIG_IP_MULTICAST
324 struct list_head ipm_list;
325 #endif
326 __u8 mac[LCS_MAC_LENGTH];
327 __u16 ip_assists_supported;
328 __u16 ip_assists_enabled;
329 __s8 lan_type;
330 __u32 pkt_seq;
331 __u16 sequence_no;
332 __s16 portno;
333 /* Some info copied from probeinfo */
334 u8 device_forced;
335 u8 max_port_no;
336 u8 hint_port_no;
337 s16 port_protocol_no;
338 } __attribute__ ((aligned(8)));