ctcm_fsms.c File Reference

#include <linux/module.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/errno.h>
#include <linux/types.h>
#include <linux/interrupt.h>
#include <linux/timer.h>
#include <linux/bitops.h>
#include <linux/signal.h>
#include <linux/string.h>
#include <linux/ip.h>
#include <linux/if_arp.h>
#include <linux/tcp.h>
#include <linux/skbuff.h>
#include <linux/ctype.h>
#include <net/dst.h>
#include <linux/io.h>
#include <asm/ccwdev.h>
#include <asm/ccwgroup.h>
#include <linux/uaccess.h>
#include <asm/idals.h>
#include "fsm.h"
#include "ctcm_dbug.h"
#include "ctcm_main.h"
#include "ctcm_fsms.h"

Go to the source code of this file.

Macros
#define	KMSG_COMPONENT   "ctcm"
#define	pr_fmt(fmt)   KMSG_COMPONENT ": " fmt

Functions
void	ctcm_ccw_check_rc (struct channel *ch, int rc, char *msg)
void	ctcm_purge_skb_queue (struct sk_buff_head *q)
void	ctcm_chx_txidle (fsm_instance *fi, int event, void *arg)
void	ctcmpc_chx_rxidle (fsm_instance *fi, int event, void *arg)

Variables
const char *	dev_state_names []
const char *	dev_event_names []
const char *	ctc_ch_event_names []
const char *	ctc_ch_state_names []
const fsm_node	ch_fsm []
int	ch_fsm_len = ARRAY_SIZE(ch_fsm)
const fsm_node	ctcmpc_ch_fsm []
int	mpc_ch_fsm_len = ARRAY_SIZE(ctcmpc_ch_fsm)
const fsm_node	dev_fsm []
int	dev_fsm_len = ARRAY_SIZE(dev_fsm)

Macro Definition Documentation

#define KMSG_COMPONENT   "ctcm"

Definition at line 14 of file ctcm_fsms.c.

#define pr_fmt

(

fmt

)

KMSG_COMPONENT ": " fmt

Definition at line 15 of file ctcm_fsms.c.

Function Documentation

void ctcm_ccw_check_rc	(	struct channel *	ch,
		int	rc,
		char *	msg
	)

Check return code of a preceding ccw_device call, halt_IO etc...

ch : The channel, the error belongs to. Returns the error code (!= 0) to inspect.

Definition at line 190 of file ctcm_fsms.c.

void ctcm_chx_txidle	(	fsm_instance *	fi,
		int	event,
		void *	arg
	)

Initial data is sent. Notify device statemachine that we are up and running.

fi An instance of a channel statemachine. event The event, just happened. arg Generic pointer, casted from channel * upon call.

Definition at line 336 of file ctcm_fsms.c.

void ctcm_purge_skb_queue

(

struct sk_buff_head *

q

)

Definition at line 213 of file ctcm_fsms.c.

void ctcmpc_chx_rxidle	(	fsm_instance *	fi,
		int	event,
		void *	arg
	)

Got initial data, check it. If OK, notify device statemachine that we are up and running.

fi An instance of a channel statemachine. event The event, just happened. arg Generic pointer, casted from channel * upon call.

Definition at line 1546 of file ctcm_fsms.c.

Variable Documentation

const fsm_node ch_fsm[]

Definition at line 1095 of file ctcm_fsms.c.

int ch_fsm_len = ARRAY_SIZE(ch_fsm)

Definition at line 1193 of file ctcm_fsms.c.

const char* ctc_ch_event_names[]

Initial value:

= {
    [CTC_EVENT_IO_SUCCESS]  = "ccw_device success",
    [CTC_EVENT_IO_EBUSY]    = "ccw_device busy",
    [CTC_EVENT_IO_ENODEV]   = "ccw_device enodev",
    [CTC_EVENT_IO_UNKNOWN]  = "ccw_device unknown",
    [CTC_EVENT_ATTNBUSY]    = "Status ATTN & BUSY",
    [CTC_EVENT_ATTN]    = "Status ATTN",
    [CTC_EVENT_BUSY]    = "Status BUSY",
    [CTC_EVENT_UC_RCRESET]  = "Unit check remote reset",
    [CTC_EVENT_UC_RSRESET]  = "Unit check remote system reset",
    [CTC_EVENT_UC_TXTIMEOUT] = "Unit check TX timeout",
    [CTC_EVENT_UC_TXPARITY] = "Unit check TX parity",
    [CTC_EVENT_UC_HWFAIL]   = "Unit check Hardware failure",
    [CTC_EVENT_UC_RXPARITY] = "Unit check RX parity",
    [CTC_EVENT_UC_ZERO] = "Unit check ZERO",
    [CTC_EVENT_UC_UNKNOWN]  = "Unit check Unknown",
    [CTC_EVENT_SC_UNKNOWN]  = "SubChannel check Unknown",
    [CTC_EVENT_MC_FAIL] = "Machine check failure",
    [CTC_EVENT_MC_GOOD] = "Machine check operational",
    [CTC_EVENT_IRQ]     = "IRQ normal",
    [CTC_EVENT_FINSTAT] = "IRQ final",
    [CTC_EVENT_TIMER]   = "Timer",
    [CTC_EVENT_START]   = "Start",
    [CTC_EVENT_STOP]    = "Stop",
    
    [CTC_EVENT_SEND_XID]    = "XID Exchange",
    [CTC_EVENT_RSWEEP_TIMER] = "MPC Group Sweep Timer",
}

Definition at line 71 of file ctcm_fsms.c.

const char* ctc_ch_state_names[]

Initial value:

= {
    [CTC_STATE_IDLE]    = "Idle",
    [CTC_STATE_STOPPED] = "Stopped",
    [CTC_STATE_STARTWAIT]   = "StartWait",
    [CTC_STATE_STARTRETRY]  = "StartRetry",
    [CTC_STATE_SETUPWAIT]   = "SetupWait",
    [CTC_STATE_RXINIT]  = "RX init",
    [CTC_STATE_TXINIT]  = "TX init",
    [CTC_STATE_RX]      = "RX",
    [CTC_STATE_TX]      = "TX",
    [CTC_STATE_RXIDLE]  = "RX idle",
    [CTC_STATE_TXIDLE]  = "TX idle",
    [CTC_STATE_RXERR]   = "RX error",
    [CTC_STATE_TXERR]   = "TX error",
    [CTC_STATE_TERM]    = "Terminating",
    [CTC_STATE_DTERM]   = "Restarting",
    [CTC_STATE_NOTOP]   = "Not operational",
    
    [CH_XID0_PENDING]   = "Pending XID0 Start",
    [CH_XID0_INPROGRESS]    = "In XID0 Negotiations ",
    [CH_XID7_PENDING]   = "Pending XID7 P1 Start",
    [CH_XID7_PENDING1]  = "Active XID7 P1 Exchange ",
    [CH_XID7_PENDING2]  = "Pending XID7 P2 Start ",
    [CH_XID7_PENDING3]  = "Active XID7 P2 Exchange ",
    [CH_XID7_PENDING4]  = "XID7 Complete - Pending READY ",
}

Definition at line 102 of file ctcm_fsms.c.

const fsm_node ctcmpc_ch_fsm[]

Definition at line 1858 of file ctcm_fsms.c.

const char* dev_event_names[]

Initial value:

= {
    [DEV_EVENT_START]   = "Start",
    [DEV_EVENT_STOP]    = "Stop",
    [DEV_EVENT_RXUP]    = "RX up",
    [DEV_EVENT_TXUP]    = "TX up",
    [DEV_EVENT_RXDOWN]  = "RX down",
    [DEV_EVENT_TXDOWN]  = "TX down",
    [DEV_EVENT_RESTART] = "Restart",
}

Definition at line 61 of file ctcm_fsms.c.

const fsm_node dev_fsm[]

Definition at line 2261 of file ctcm_fsms.c.

int dev_fsm_len = ARRAY_SIZE(dev_fsm)

Definition at line 2301 of file ctcm_fsms.c.

const char* dev_state_names[]

Initial value:

= {
    [DEV_STATE_STOPPED]     = "Stopped",
    [DEV_STATE_STARTWAIT_RXTX]  = "StartWait RXTX",
    [DEV_STATE_STARTWAIT_RX]    = "StartWait RX",
    [DEV_STATE_STARTWAIT_TX]    = "StartWait TX",
    [DEV_STATE_STOPWAIT_RXTX]   = "StopWait RXTX",
    [DEV_STATE_STOPWAIT_RX]     = "StopWait RX",
    [DEV_STATE_STOPWAIT_TX]     = "StopWait TX",
    [DEV_STATE_RUNNING]     = "Running",
}

Definition at line 50 of file ctcm_fsms.c.

int mpc_ch_fsm_len = ARRAY_SIZE(ctcmpc_ch_fsm)

Definition at line 2059 of file ctcm_fsms.c.