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Commit a22217e2 authored by Dong Jia Shi's avatar Dong Jia Shi Committed by Cornelia Huck
Browse files

s390: cio: export more interfaces 



Export the common I/O interfaces those are needed by an I/O
subchannel driver to actually talk to the subchannel.

Reviewed-by: default avatarPierre Morel <pmorel@linux.vnet.ibm.com>
Signed-off-by: default avatarDong Jia Shi <bjsdjshi@linux.vnet.ibm.com>
Cc: Sebastian Ott <sebott@linux.vnet.ibm.com>
Cc: Peter Oberparleiter <oberpar@linux.vnet.ibm.com>
Acked-by: default avatarSebastian Ott <sebott@linux.vnet.ibm.com>
Message-Id: <20170317031743.40128-3-bjsdjshi@linux.vnet.ibm.com>
Signed-off-by: default avatarCornelia Huck <cornelia.huck@de.ibm.com>
parent 5434da4d

drivers/s390/cio/cio.c

+10 −0
Original line number Diff line number Diff line
@@ -170,12 +170,14 @@ cio_start_key (struct subchannel *sch, /* subchannel structure */ 
		return ccode;

	}

}

EXPORT_SYMBOL_GPL(cio_start_key);



int

cio_start (struct subchannel *sch, struct ccw1 *cpa, __u8 lpm)

{

	return cio_start_key(sch, cpa, lpm, PAGE_DEFAULT_KEY);

}

EXPORT_SYMBOL_GPL(cio_start);



/*

 * resume suspended I/O operation
@@ -208,6 +210,7 @@ cio_resume (struct subchannel *sch) 
		return -ENODEV;

	}

}

EXPORT_SYMBOL_GPL(cio_resume);



/*

 * halt I/O operation
@@ -241,6 +244,7 @@ cio_halt(struct subchannel *sch) 
		return -ENODEV;

	}

}

EXPORT_SYMBOL_GPL(cio_halt);



/*

 * Clear I/O operation
@@ -271,6 +275,7 @@ cio_clear(struct subchannel *sch) 
		return -ENODEV;

	}

}

EXPORT_SYMBOL_GPL(cio_clear);



/*

 * Function: cio_cancel
@@ -308,6 +313,7 @@ cio_cancel (struct subchannel *sch) 
		return -ENODEV;

	}

}

EXPORT_SYMBOL_GPL(cio_cancel);



/**

 * cio_cancel_halt_clear - Cancel running I/O by performing cancel, halt
@@ -368,6 +374,7 @@ int cio_cancel_halt_clear(struct subchannel *sch, int *iretry) 
	/* Function was unsuccessful */

	return -EIO;

}

EXPORT_SYMBOL_GPL(cio_cancel_halt_clear);



static void cio_apply_config(struct subchannel *sch, struct schib *schib)

{
@@ -441,6 +448,7 @@ int cio_commit_config(struct subchannel *sch) 
	}

	return ret;

}

EXPORT_SYMBOL_GPL(cio_commit_config);



/**

 * cio_update_schib - Perform stsch and update schib if subchannel is valid.
@@ -1046,6 +1054,7 @@ int cio_tm_start_key(struct subchannel *sch, struct tcw *tcw, u8 lpm, u8 key) 
		return cio_start_handle_notoper(sch, lpm);

	}

}

EXPORT_SYMBOL_GPL(cio_tm_start_key);



/**

 * cio_tm_intrg - perform interrogate function
@@ -1071,3 +1080,4 @@ int cio_tm_intrg(struct subchannel *sch) 
		return -ENODEV;

	}

}

EXPORT_SYMBOL_GPL(cio_tm_intrg);