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| author |  Xingui Yang <yangxingui@huawei.com>
| 2024-06-19 09:17:42 +0000 |
|---|---|---|
| committer |  Martin K. Petersen <martin.petersen@oracle.com>
| 2024-06-26 22:31:53 -0400 |
| commit | ab2068a6fb84751836a84c26ca72b3beb349619d (patch) | |
| tree | 865c6fb8b9e9a08d5761bc8110f36d9a7b1ea379 /tools/testing/selftests/kvm/include/x86_64/svm_util.h | |
| parent | scsi: scsi_debug: Fix create target debugfs failure (diff) | |
| download | linux-ab2068a6fb84751836a84c26ca72b3beb349619d.tar.gz linux-ab2068a6fb84751836a84c26ca72b3beb349619d.tar.bz2 linux-ab2068a6fb84751836a84c26ca72b3beb349619d.zip | |
scsi: libsas: Fix exp-attached device scan after probe failure scanned in again after probe failed
The expander phy will be treated as broadcast flutter in the next
revalidation after the exp-attached end device probe failed, as follows:
[78779.654026] sas: broadcast received: 0
[78779.654037] sas: REVALIDATING DOMAIN on port 0, pid:10
[78779.654680] sas: ex 500e004aaaaaaa1f phy05 change count has changed
[78779.662977] sas: ex 500e004aaaaaaa1f phy05 originated BROADCAST(CHANGE)
[78779.662986] sas: ex 500e004aaaaaaa1f phy05 new device attached
[78779.663079] sas: ex 500e004aaaaaaa1f phy05:U:8 attached: 500e004aaaaaaa05 (stp)
[78779.693542] hisi_sas_v3_hw 0000:b4:02.0: dev[16:5] found
[78779.701155] sas: done REVALIDATING DOMAIN on port 0, pid:10, res 0x0
[78779.707864] sas: Enter sas_scsi_recover_host busy: 0 failed: 0
...
[78835.161307] sas: --- Exit sas_scsi_recover_host: busy: 0 failed: 0 tries: 1
[78835.171344] sas: sas_probe_sata: for exp-attached device 500e004aaaaaaa05 returned -19
[78835.180879] hisi_sas_v3_hw 0000:b4:02.0: dev[16:5] is gone
[78835.187487] sas: broadcast received: 0
[78835.187504] sas: REVALIDATING DOMAIN on port 0, pid:10
[78835.188263] sas: ex 500e004aaaaaaa1f phy05 change count has changed
[78835.195870] sas: ex 500e004aaaaaaa1f phy05 originated BROADCAST(CHANGE)
[78835.195875] sas: ex 500e004aaaaaaa1f rediscovering phy05
[78835.196022] sas: ex 500e004aaaaaaa1f phy05:U:A attached: 500e004aaaaaaa05 (stp)
[78835.196026] sas: ex 500e004aaaaaaa1f phy05 broadcast flutter
[78835.197615] sas: done REVALIDATING DOMAIN on port 0, pid:10, res 0x0
The cause of the problem is that the related ex_phy's attached_sas_addr was
not cleared after the end device probe failed, so reset it.
Signed-off-by: Xingui Yang <yangxingui@huawei.com>
Link: https://lore.kernel.org/r/20240619091742.25465-1-yangxingui@huawei.com
Reviewed-by: John Garry <john.g.garry@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'tools/testing/selftests/kvm/include/x86_64/svm_util.h')
0 files changed, 0 insertions, 0 deletions