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| author | Niklas Schnelle <schnelle@linux.ibm.com> | 2021-07-22 12:38:29 +0200 |
|---|---|---|
| committer | Heiko Carstens <hca@linux.ibm.com> | 2021-08-25 11:03:33 +0200 |
| commit | 8256adda1f44ea1ec763711aefcd25f8c0cf93f3 (patch) | |
| tree | 23eb83f03fec082e6c0be56eba714ef277006dc8 /arch/s390/include | |
| parent | f7addcdd527a6dddfebe20c358b87bdb95624612 (diff) | |
| download | linux-8256adda1f44ea1ec763711aefcd25f8c0cf93f3.tar.bz2 | |
s390/pci: handle FH state mismatch only on disable
Instead of always treating CLP_RC_SETPCIFN_ALRDY as success and blindly
updating the function handle restrict this special handling to the
disable case by moving it into zpci_disable_device() and still treating
it as an error while also updating the function handle such that
a subsequent zpci_disable_device() succeeds or the caller can ignore the
error when aborting is not an option such as for zPCI event 0x304.
Also print this occurrence to the log such that an admin can tell why
a disable operation returned an error.
A mismatch between the state of the underlying device and our view of it
can naturally happen when the device suddenly enters the error state but
we haven't gotten the error notification yet, it must not happen on
enable though.
Reviewed-by: Matthew Rosato <mjrosato@linux.ibm.com>
Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Diffstat (limited to 'arch/s390/include')
| -rw-r--r-- | arch/s390/include/asm/pci.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/s390/include/asm/pci.h b/arch/s390/include/asm/pci.h index 5509b224c2ec..a5eec4410421 100644 --- a/arch/s390/include/asm/pci.h +++ b/arch/s390/include/asm/pci.h @@ -219,6 +219,7 @@ int clp_query_pci_fn(struct zpci_dev *zdev); int clp_enable_fh(struct zpci_dev *, u8); int clp_disable_fh(struct zpci_dev *); int clp_get_state(u32 fid, enum zpci_state *state); +int clp_refresh_fh(u32 fid); /* UID */ void update_uid_checking(bool new); |