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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: Pierre Morel <pmorel@linux.vnet.ibm.com>
Signed-off-by: Dong 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: Sebastian Ott <sebott@linux.vnet.ibm.com>
Message-Id: <20170317031743.40128-3-bjsdjshi@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
hifive-unleashed-5.1
Dong Jia Shi 2017-03-17 04:17:29 +01:00 committed by Cornelia Huck
parent 5434da4ddf
commit a22217e27c
1 changed files with 10 additions and 0 deletions
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10
drivers/s390/cio/cio.c
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@ -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);