Searched hist:"32 ff8ce0" (Results 1 – 4 of 4) sorted by relevance
/openbmc/linux/drivers/s390/block/ |
H A D | dasd_eckd.h | 32ff8ce0 Tue Sep 20 14:26:16 CDT 2022 Stefan Haberland <sth@linux.ibm.com> s390/dasd: add device ping attribute
Add a function to check if a device is accessible. This makes mostly sense for copy pair secondary devices but it will work for all devices.
The sysfs attribute ping is a write only attribute and will issue a NOP CCW to the device. In case of success it will return zero. If the device is not accessible it will return an error code.
Signed-off-by: Stefan Haberland <sth@linux.ibm.com> Reviewed-by: Jan Hoeppner <hoeppner@linux.ibm.com> Link: https://lore.kernel.org/r/20220920192616.808070-8-sth@linux.ibm.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
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H A D | dasd_devmap.c | 32ff8ce0 Tue Sep 20 14:26:16 CDT 2022 Stefan Haberland <sth@linux.ibm.com> s390/dasd: add device ping attribute
Add a function to check if a device is accessible. This makes mostly sense for copy pair secondary devices but it will work for all devices.
The sysfs attribute ping is a write only attribute and will issue a NOP CCW to the device. In case of success it will return zero. If the device is not accessible it will return an error code.
Signed-off-by: Stefan Haberland <sth@linux.ibm.com> Reviewed-by: Jan Hoeppner <hoeppner@linux.ibm.com> Link: https://lore.kernel.org/r/20220920192616.808070-8-sth@linux.ibm.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
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H A D | dasd_int.h | 32ff8ce0 Tue Sep 20 14:26:16 CDT 2022 Stefan Haberland <sth@linux.ibm.com> s390/dasd: add device ping attribute
Add a function to check if a device is accessible. This makes mostly sense for copy pair secondary devices but it will work for all devices.
The sysfs attribute ping is a write only attribute and will issue a NOP CCW to the device. In case of success it will return zero. If the device is not accessible it will return an error code.
Signed-off-by: Stefan Haberland <sth@linux.ibm.com> Reviewed-by: Jan Hoeppner <hoeppner@linux.ibm.com> Link: https://lore.kernel.org/r/20220920192616.808070-8-sth@linux.ibm.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
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H A D | dasd_eckd.c | 32ff8ce0 Tue Sep 20 14:26:16 CDT 2022 Stefan Haberland <sth@linux.ibm.com> s390/dasd: add device ping attribute
Add a function to check if a device is accessible. This makes mostly sense for copy pair secondary devices but it will work for all devices.
The sysfs attribute ping is a write only attribute and will issue a NOP CCW to the device. In case of success it will return zero. If the device is not accessible it will return an error code.
Signed-off-by: Stefan Haberland <sth@linux.ibm.com> Reviewed-by: Jan Hoeppner <hoeppner@linux.ibm.com> Link: https://lore.kernel.org/r/20220920192616.808070-8-sth@linux.ibm.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
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