The commit is pushed to "branch-rh7-3.10.0-957.27.2.vz7.107.x-ovz" and will
appear at https://src.openvz.org/scm/ovz/vzkernel.git
after rh7-3.10.0-957.27.2.vz7.107.11
------>
commit be5c8aa1be187c7fc9e5b7f1dd05c087f15db245
Author: Damien Le Moal <[email protected]>
Date: Tue Oct 1 17:49:55 2019 +0300
ms/libata: Fix ATA request sense
For an ATA device supporting the sense data reporting feature set, a
failed command will trigger the execution of ata_eh_request_sense if
the result task file of the failed command has the ATA_SENSE bit set
(sense data available bit). ata_eh_request_sense executes the REQUEST
SENSE DATA EXT command to retrieve the sense data of the failed
command. On success of REQUEST SENSE DATA EXT, the ATA_SENSE bit will
NOT be set (the command succeeded) but ata_eh_request_sense
nevertheless tests the availability of sense data by testing that bit
presence in the result tf of the REQUEST SENSE DATA EXT command. This
leads us to falsely assume that request sense data failed and to the
warning message:
atax.xx: request sense failed stat 50 emask 0
Upon success of REQUEST SENSE DATA EXT, set the ATA_SENSE bit in the
result task file command so that sense data can be returned by
ata_eh_request_sense.
Signed-off-by: Damien Le Moal <[email protected]>
Signed-off-by: Tejun Heo <[email protected]>
Cc: [email protected]
https://pmc.acronis.com/browse/VSTOR-26930
(cherry picked from commit 2dae99558e86894e9e5dbf097477baaa5eb70134)
Signed-off-by: Ildar Ismagilov <[email protected]>
=====================
Patchset description:
Add support of SMR ATA disk
This patchset adds support of SMR ATA disk through SCSI generic interface
aka /dev/sgX.
The SCSI generic interface is used by libzbc library for communicate
with SMR disk. These patches allow us to use SMR disk through
"ata" backend of libzbc ("scsi" and "block" backends aren't supported).
These patches were tested with following command:
libzbc/test/zbc_test.sh /dev/sgX
JIRA: https://pmc.acronis.com/browse/VSTOR-26930
Damien Le Moal (1):
libata: Fix ATA request sense
Hannes Reinecke (5):
libata: Implement ATA_DEV_ZAC
libata-scsi: Update SATL for ZAC drives
libata: Implement NCQ autosense
libata: Implement support for sense data reporting
libata: fixup ZAC device disabling
---
drivers/ata/libata-core.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index d2272247bf58..7ce382cd1da8 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -1691,6 +1691,8 @@ unsigned ata_exec_internal_sg(struct ata_device *dev,
if (qc->err_mask & ~AC_ERR_OTHER)
qc->err_mask &= ~AC_ERR_OTHER;
+ } else if (qc->tf.command == ATA_CMD_REQ_SENSE_DATA) {
+ qc->result_tf.command |= ATA_SENSE;
}
/* finish up */
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