C++ (Cpp) cio_update_schib示例

示例#1

文件： cio.c 项目： a2hojsjsjs/linux

/**
 * cio_enable_subchannel - enable a subchannel.
 * @sch: subchannel to be enabled
 * @intparm: interruption parameter to set
 */
int cio_enable_subchannel(struct subchannel *sch, u32 intparm)
{
	int ret;

	CIO_TRACE_EVENT(2, "ensch");
	CIO_TRACE_EVENT(2, dev_name(&sch->dev));

	if (sch_is_pseudo_sch(sch))
		return -EINVAL;
	if (cio_update_schib(sch))
		return -ENODEV;

	sch->config.ena = 1;
	sch->config.isc = sch->isc;
	sch->config.intparm = intparm;

	ret = cio_commit_config(sch);
	if (ret == -EIO) {
		/*
		 * Got a program check in msch. Try without
		 * the concurrent sense bit the next time.
		 */
		sch->config.csense = 0;
		ret = cio_commit_config(sch);
	}
	CIO_HEX_EVENT(2, &ret, sizeof(ret));
	return ret;
}

示例#2

文件： cio.c 项目： a2hojsjsjs/linux

/*
 * Function: cio_cancel
 * Issues a "Cancel Subchannel" on the specified subchannel
 * Note: We don't need any fancy intparms and flags here
 *	 since xsch is executed synchronously.
 * Only for common I/O internal use as for now.
 */
int
cio_cancel (struct subchannel *sch)
{
	int ccode;

	if (!sch)
		return -ENODEV;

	CIO_TRACE_EVENT(2, "cancelIO");
	CIO_TRACE_EVENT(2, dev_name(&sch->dev));

	ccode = xsch (sch->schid);

	CIO_HEX_EVENT(2, &ccode, sizeof(ccode));

	switch (ccode) {
	case 0:		/* success */
		/* Update information in scsw. */
		if (cio_update_schib(sch))
			return -ENODEV;
		return 0;
	case 1:		/* status pending */
		return -EBUSY;
	case 2:		/* not applicable */
		return -EINVAL;
	default:	/* not oper */
		return -ENODEV;
	}
}

示例#3

文件： cio.c 项目： AllenDou/linux

/**
 * cio_disable_subchannel - disable a subchannel.
 * @sch: subchannel to disable
 */
int cio_disable_subchannel(struct subchannel *sch)
{
	int retry;
	int ret;

	CIO_TRACE_EVENT(2, "dissch");
	CIO_TRACE_EVENT(2, dev_name(&sch->dev));

	if (sch_is_pseudo_sch(sch))
		return 0;
	if (cio_update_schib(sch))
		return -ENODEV;

	sch->config.ena = 0;

	for (retry = 0; retry < 3; retry++) {
		ret = cio_commit_config(sch);
		if (ret == -EBUSY) {
			struct irb irb;
			if (tsch(sch->schid, &irb) != 0)
				break;
		} else
			break;
	}
	CIO_HEX_EVENT(2, &ret, sizeof(ret));
	return ret;
}

示例#4

文件： cio.c 项目： DirtyDroidX/android_kernel_htc_m8ul

int cio_enable_subchannel(struct subchannel *sch, u32 intparm)
{
	int retry;
	int ret;

	CIO_TRACE_EVENT(2, "ensch");
	CIO_TRACE_EVENT(2, dev_name(&sch->dev));

	if (sch_is_pseudo_sch(sch))
		return -EINVAL;
	if (cio_update_schib(sch))
		return -ENODEV;

	sch->config.ena = 1;
	sch->config.isc = sch->isc;
	sch->config.intparm = intparm;

	for (retry = 0; retry < 3; retry++) {
		ret = cio_commit_config(sch);
		if (ret == -EIO) {
			sch->config.csense = 0;
		} else if (ret == -EBUSY) {
			struct irb irb;
			if (tsch(sch->schid, &irb) != 0)
				break;
		} else
			break;
	}
	CIO_HEX_EVENT(2, &ret, sizeof(ret));
	return ret;
}

示例#5

文件： cio.c 项目： DirtyDroidX/android_kernel_htc_m8ul

int
cio_cancel (struct subchannel *sch)
{
	int ccode;

	if (!sch)
		return -ENODEV;

	CIO_TRACE_EVENT(2, "cancelIO");
	CIO_TRACE_EVENT(2, dev_name(&sch->dev));

	ccode = xsch (sch->schid);

	CIO_HEX_EVENT(2, &ccode, sizeof(ccode));

	switch (ccode) {
	case 0:		
		
		if (cio_update_schib(sch))
			return -ENODEV;
		return 0;
	case 1:		
		return -EBUSY;
	case 2:		
		return -EINVAL;
	default:	
		return -ENODEV;
	}
}

示例#6

文件： cio.c 项目： a2hojsjsjs/linux

/**
 * cio_disable_subchannel - disable a subchannel.
 * @sch: subchannel to disable
 */
int cio_disable_subchannel(struct subchannel *sch)
{
	int ret;

	CIO_TRACE_EVENT(2, "dissch");
	CIO_TRACE_EVENT(2, dev_name(&sch->dev));

	if (sch_is_pseudo_sch(sch))
		return 0;
	if (cio_update_schib(sch))
		return -ENODEV;

	sch->config.ena = 0;
	ret = cio_commit_config(sch);

	CIO_HEX_EVENT(2, &ret, sizeof(ret));
	return ret;
}

示例#7

文件： cio.c 项目： a2hojsjsjs/linux

static int
cio_start_handle_notoper(struct subchannel *sch, __u8 lpm)
{
	char dbf_text[15];

	if (lpm != 0)
		sch->lpm &= ~lpm;
	else
		sch->lpm = 0;

	CIO_MSG_EVENT(2, "cio_start: 'not oper' status for "
		      "subchannel 0.%x.%04x!\n", sch->schid.ssid,
		      sch->schid.sch_no);

	if (cio_update_schib(sch))
		return -ENODEV;

	sprintf(dbf_text, "no%s", dev_name(&sch->dev));
	CIO_TRACE_EVENT(0, dbf_text);
	CIO_HEX_EVENT(0, &sch->schib, sizeof (struct schib));

	return (sch->lpm ? -EACCES : -ENODEV);
}

示例#8

文件： cio.c 项目： ClarkChen633/rtl819x-toolchain

/**
 * cio_enable_subchannel - enable a subchannel.
 * @sch: subchannel to be enabled
 * @intparm: interruption parameter to set
 */
int cio_enable_subchannel(struct subchannel *sch, u32 intparm)
{
	char dbf_txt[15];
	int retry;
	int ret;

	CIO_TRACE_EVENT (2, "ensch");
	CIO_TRACE_EVENT(2, dev_name(&sch->dev));

	if (sch_is_pseudo_sch(sch))
		return -EINVAL;
	if (cio_update_schib(sch))
		return -ENODEV;

	sch->config.ena = 1;
	sch->config.isc = sch->isc;
	sch->config.intparm = intparm;

	for (retry = 0; retry < 3; retry++) {
		ret = cio_commit_config(sch);
		if (ret == -EIO) {
			/*
			 * Got a program check in msch. Try without
			 * the concurrent sense bit the next time.
			 */
			sch->config.csense = 0;
		} else if (ret == -EBUSY) {
			struct irb irb;
			if (tsch(sch->schid, &irb) != 0)
				break;
		} else
			break;
	}
	sprintf (dbf_txt, "ret:%d", ret);
	CIO_TRACE_EVENT (2, dbf_txt);
	return ret;
}