| /******************************************************* |
| * Define constants * |
| * * |
| ********************************************************/ |
| |
| /*-----------------------------------------------------* |
| * CCW command codes for CLAW protocol * |
| *------------------------------------------------------*/ |
| |
| #define CCW_CLAW_CMD_WRITE 0x01 /* write - not including link */ |
| #define CCW_CLAW_CMD_READ 0x02 /* read */ |
| #define CCW_CLAW_CMD_NOP 0x03 /* NOP */ |
| #define CCW_CLAW_CMD_SENSE 0x04 /* Sense */ |
| #define CCW_CLAW_CMD_SIGNAL_SMOD 0x05 /* Signal Status Modifier */ |
| #define CCW_CLAW_CMD_TIC 0x08 /* TIC */ |
| #define CCW_CLAW_CMD_READHEADER 0x12 /* read header data */ |
| #define CCW_CLAW_CMD_READFF 0x22 /* read an FF */ |
| #define CCW_CLAW_CMD_SENSEID 0xe4 /* Sense ID */ |
| |
| |
| /*-----------------------------------------------------* |
| * CLAW Unique constants * |
| *------------------------------------------------------*/ |
| |
| #define MORE_to_COME_FLAG 0x04 /* OR with write CCW in case of m-t-c */ |
| #define CLAW_IDLE 0x00 /* flag to indicate CLAW is idle */ |
| #define CLAW_BUSY 0xff /* flag to indicate CLAW is busy */ |
| #define CLAW_PENDING 0x00 /* flag to indicate i/o is pending */ |
| #define CLAW_COMPLETE 0xff /* flag to indicate i/o completed */ |
| |
| /*-----------------------------------------------------* |
| * CLAW control comand code * |
| *------------------------------------------------------*/ |
| |
| #define SYSTEM_VALIDATE_REQUEST 0x01 /* System Validate request */ |
| #define SYSTEM_VALIDATE_RESPONSE 0x02 /* System Validate response */ |
| #define CONNECTION_REQUEST 0x21 /* Connection request */ |
| #define CONNECTION_RESPONSE 0x22 /* Connection response */ |
| #define CONNECTION_CONFIRM 0x23 /* Connection confirm */ |
| #define DISCONNECT 0x24 /* Disconnect */ |
| #define CLAW_ERROR 0x41 /* CLAW error message */ |
| #define CLAW_VERSION_ID 2 /* CLAW version ID */ |
| |
| /*-----------------------------------------------------* |
| * CLAW adater sense bytes * |
| *------------------------------------------------------*/ |
| |
| #define CLAW_ADAPTER_SENSE_BYTE 0x41 /* Stop command issued to adapter */ |
| |
| /*-----------------------------------------------------* |
| * CLAW control command return codes * |
| *------------------------------------------------------*/ |
| |
| #define CLAW_RC_NAME_MISMATCH 166 /* names do not match */ |
| #define CLAW_RC_WRONG_VERSION 167 /* wrong CLAW version number */ |
| #define CLAW_RC_HOST_RCV_TOO_SMALL 180 /* Host maximum receive is */ |
| /* less than Linux on zSeries*/ |
| /* transmit size */ |
| |
| /*-----------------------------------------------------* |
| * CLAW Constants application name * |
| *------------------------------------------------------*/ |
| |
| #define HOST_APPL_NAME "TCPIP " |
| #define WS_APPL_NAME_IP_LINK "TCPIP " |
| #define WS_APPL_NAME_IP_NAME "IP " |
| #define WS_APPL_NAME_API_LINK "API " |
| #define WS_APPL_NAME_PACKED "PACKED " |
| #define WS_NAME_NOT_DEF "NOT_DEF " |
| #define PACKING_ASK 1 |
| #define PACK_SEND 2 |
| #define DO_PACKED 3 |
| |
| #define MAX_ENVELOPE_SIZE 65536 |
| #define CLAW_DEFAULT_MTU_SIZE 4096 |
| #define DEF_PACK_BUFSIZE 32768 |
| #define READ 0 |
| #define WRITE 1 |
| |
| #define TB_TX 0 /* sk buffer handling in process */ |
| #define TB_STOP 1 /* network device stop in process */ |
| #define TB_RETRY 2 /* retry in process */ |
| #define TB_NOBUFFER 3 /* no buffer on free queue */ |
| #define CLAW_MAX_LINK_ID 1 |
| #define CLAW_MAX_DEV 256 /* max claw devices */ |
| #define MAX_NAME_LEN 8 /* host name, adapter name length */ |
| #define CLAW_FRAME_SIZE 4096 |
| #define CLAW_ID_SIZE BUS_ID_SIZE+3 |
| |
| /* state machine codes used in claw_irq_handler */ |
| |
| #define CLAW_STOP 0 |
| #define CLAW_START_HALT_IO 1 |
| #define CLAW_START_SENSEID 2 |
| #define CLAW_START_READ 3 |
| #define CLAW_START_WRITE 4 |
| |
| /*-----------------------------------------------------* |
| * Lock flag * |
| *------------------------------------------------------*/ |
| #define LOCK_YES 0 |
| #define LOCK_NO 1 |
| |
| /*-----------------------------------------------------* |
| * DBF Debug macros * |
| *------------------------------------------------------*/ |
| #define CLAW_DBF_TEXT(level, name, text) \ |
| do { \ |
| debug_text_event(claw_dbf_##name, level, text); \ |
| } while (0) |
| |
| #define CLAW_DBF_HEX(level,name,addr,len) \ |
| do { \ |
| debug_event(claw_dbf_##name,level,(void*)(addr),len); \ |
| } while (0) |
| |
| #define CLAW_DBF_TEXT_(level,name,text...) \ |
| do { \ |
| sprintf(debug_buffer, text); \ |
| debug_text_event(claw_dbf_##name,level, debug_buffer);\ |
| } while (0) |
| |
| /******************************************************* |
| * Define Control Blocks * |
| * * |
| ********************************************************/ |
| |
| /*------------------------------------------------------*/ |
| /* CLAW header */ |
| /*------------------------------------------------------*/ |
| |
| struct clawh { |
| __u16 length; /* length of data read by preceding read CCW */ |
| __u8 opcode; /* equivalent read CCW */ |
| __u8 flag; /* flag of FF to indicate read was completed */ |
| }; |
| |
| /*------------------------------------------------------*/ |
| /* CLAW Packing header 4 bytes */ |
| /*------------------------------------------------------*/ |
| struct clawph { |
| __u16 len; /* Length of Packed Data Area */ |
| __u8 flag; /* Reserved not used */ |
| __u8 link_num; /* Link ID */ |
| }; |
| |
| /*------------------------------------------------------*/ |
| /* CLAW Ending struct ccwbk */ |
| /*------------------------------------------------------*/ |
| struct endccw { |
| __u32 real; /* real address of this block */ |
| __u8 write1; /* write 1 is active */ |
| __u8 read1; /* read 1 is active */ |
| __u16 reserved; /* reserved for future use */ |
| struct ccw1 write1_nop1; |
| struct ccw1 write1_nop2; |
| struct ccw1 write2_nop1; |
| struct ccw1 write2_nop2; |
| struct ccw1 read1_nop1; |
| struct ccw1 read1_nop2; |
| struct ccw1 read2_nop1; |
| struct ccw1 read2_nop2; |
| }; |
| |
| /*------------------------------------------------------*/ |
| /* CLAW struct ccwbk */ |
| /*------------------------------------------------------*/ |
| struct ccwbk { |
| void *next; /* pointer to next ccw block */ |
| __u32 real; /* real address of this ccw */ |
| void *p_buffer; /* virtual address of data */ |
| struct clawh header; /* claw header */ |
| struct ccw1 write; /* write CCW */ |
| struct ccw1 w_read_FF; /* read FF */ |
| struct ccw1 w_TIC_1; /* TIC */ |
| struct ccw1 read; /* read CCW */ |
| struct ccw1 read_h; /* read header */ |
| struct ccw1 signal; /* signal SMOD */ |
| struct ccw1 r_TIC_1; /* TIC1 */ |
| struct ccw1 r_read_FF; /* read FF */ |
| struct ccw1 r_TIC_2; /* TIC2 */ |
| }; |
| |
| /*------------------------------------------------------*/ |
| /* CLAW control block */ |
| /*------------------------------------------------------*/ |
| struct clawctl { |
| __u8 command; /* control command */ |
| __u8 version; /* CLAW protocol version */ |
| __u8 linkid; /* link ID */ |
| __u8 correlator; /* correlator */ |
| __u8 rc; /* return code */ |
| __u8 reserved1; /* reserved */ |
| __u8 reserved2; /* reserved */ |
| __u8 reserved3; /* reserved */ |
| __u8 data[24]; /* command specific fields */ |
| }; |
| |
| /*------------------------------------------------------*/ |
| /* Data for SYSTEMVALIDATE command */ |
| /*------------------------------------------------------*/ |
| struct sysval { |
| char WS_name[8]; /* Workstation System name */ |
| char host_name[8]; /* Host system name */ |
| __u16 read_frame_size; /* read frame size */ |
| __u16 write_frame_size; /* write frame size */ |
| __u8 reserved[4]; /* reserved */ |
| }; |
| |
| /*------------------------------------------------------*/ |
| /* Data for Connect command */ |
| /*------------------------------------------------------*/ |
| struct conncmd { |
| char WS_name[8]; /* Workstation application name */ |
| char host_name[8]; /* Host application name */ |
| __u16 reserved1[2]; /* read frame size */ |
| __u8 reserved2[4]; /* reserved */ |
| }; |
| |
| /*------------------------------------------------------*/ |
| /* Data for CLAW error */ |
| /*------------------------------------------------------*/ |
| struct clawwerror { |
| char reserved1[8]; /* reserved */ |
| char reserved2[8]; /* reserved */ |
| char reserved3[8]; /* reserved */ |
| }; |
| |
| /*------------------------------------------------------*/ |
| /* Data buffer for CLAW */ |
| /*------------------------------------------------------*/ |
| struct clawbuf { |
| char buffer[MAX_ENVELOPE_SIZE]; /* data buffer */ |
| }; |
| |
| /*------------------------------------------------------*/ |
| /* Channel control block for read and write channel */ |
| /*------------------------------------------------------*/ |
| |
| struct chbk { |
| unsigned int devno; |
| int irq; |
| char id[CLAW_ID_SIZE]; |
| __u32 IO_active; |
| __u8 claw_state; |
| struct irb *irb; |
| struct ccw_device *cdev; /* pointer to the channel device */ |
| struct net_device *ndev; |
| wait_queue_head_t wait; |
| struct tasklet_struct tasklet; |
| struct timer_list timer; |
| unsigned long flag_a; /* atomic flags */ |
| #define CLAW_BH_ACTIVE 0 |
| unsigned long flag_b; /* atomic flags */ |
| #define CLAW_WRITE_ACTIVE 0 |
| __u8 last_dstat; |
| __u8 flag; |
| struct sk_buff_head collect_queue; |
| spinlock_t collect_lock; |
| #define CLAW_WRITE 0x02 /* - Set if this is a write channel */ |
| #define CLAW_READ 0x01 /* - Set if this is a read channel */ |
| #define CLAW_TIMER 0x80 /* - Set if timer made the wake_up */ |
| }; |
| |
| /*--------------------------------------------------------------* |
| * CLAW environment block * |
| *---------------------------------------------------------------*/ |
| |
| struct claw_env { |
| unsigned int devno[2]; /* device number */ |
| char host_name[9]; /* Host name */ |
| char adapter_name [9]; /* adapter name */ |
| char api_type[9]; /* TCPIP, API or PACKED */ |
| void *p_priv; /* privptr */ |
| __u16 read_buffers; /* read buffer number */ |
| __u16 write_buffers; /* write buffer number */ |
| __u16 read_size; /* read buffer size */ |
| __u16 write_size; /* write buffer size */ |
| __u16 dev_id; /* device ident */ |
| __u8 packing; /* are we packing? */ |
| volatile __u8 queme_switch; /* gate for imed packing */ |
| volatile unsigned long pk_delay; /* Delay for adaptive packing */ |
| __u8 in_use; /* device active flag */ |
| struct net_device *ndev; /* backward ptr to the net dev*/ |
| }; |
| |
| /*--------------------------------------------------------------* |
| * CLAW main control block * |
| *---------------------------------------------------------------*/ |
| |
| struct claw_privbk { |
| void *p_buff_ccw; |
| __u32 p_buff_ccw_num; |
| void *p_buff_read; |
| __u32 p_buff_read_num; |
| __u32 p_buff_pages_perread; |
| void *p_buff_write; |
| __u32 p_buff_write_num; |
| __u32 p_buff_pages_perwrite; |
| long active_link_ID; /* Active logical link ID */ |
| struct ccwbk *p_write_free_chain; /* pointer to free ccw chain */ |
| struct ccwbk *p_write_active_first; /* ptr to the first write ccw */ |
| struct ccwbk *p_write_active_last; /* ptr to the last write ccw */ |
| struct ccwbk *p_read_active_first; /* ptr to the first read ccw */ |
| struct ccwbk *p_read_active_last; /* ptr to the last read ccw */ |
| struct endccw *p_end_ccw; /*ptr to ending ccw */ |
| struct ccwbk *p_claw_signal_blk; /* ptr to signal block */ |
| __u32 write_free_count; /* number of free bufs for write */ |
| struct net_device_stats stats; /* device status */ |
| struct chbk channel[2]; /* Channel control blocks */ |
| __u8 mtc_skipping; |
| int mtc_offset; |
| int mtc_logical_link; |
| void *p_mtc_envelope; |
| struct sk_buff *pk_skb; /* packing buffer */ |
| int pk_cnt; |
| struct clawctl ctl_bk; |
| struct claw_env *p_env; |
| __u8 system_validate_comp; |
| __u8 release_pend; |
| __u8 checksum_received_ip_pkts; |
| __u8 buffs_alloc; |
| struct endccw end_ccw; |
| unsigned long tbusy; |
| |
| }; |
| |
| |
| /************************************************************/ |
| /* define global constants */ |
| /************************************************************/ |
| |
| #define CCWBK_SIZE sizeof(struct ccwbk) |
| |
| |
