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| author | Gabriel Krisman Bertazi <krisman@collabora.com> | 2020-03-18 00:34:22 +0100 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2020-03-27 02:59:20 +0100 |
| commit | 82b8cf40bfe1077d8d757e223eb7a35c25f650ec (patch) | |
| tree | 4b64d91b9f716319f26e1c2a125c90c7eac6ab75 /include/scsi | |
| parent | scsi: target: core: add task tag to trace events (diff) | |
| download | linux-82b8cf40bfe1077d8d757e223eb7a35c25f650ec.tar.xz linux-82b8cf40bfe1077d8d757e223eb7a35c25f650ec.zip | |
scsi: iscsi: Report connection state in sysfs
If an iSCSI connection happens to fail while the daemon isn't running (due
to a crash or for another reason), the kernel failure report is not
received. When the daemon restarts, there is insufficient kernel state in
sysfs for it to know that this happened. open-iscsi tries to reopen every
connection, but on different initiators, we'd like to know which
connections have failed.
There is session->state, but that has a different lifetime than an iSCSI
connection, so it doesn't directly reflect the connection state.
[mkp: typos]
Link: https://lore.kernel.org/r/20200317233422.532961-1-krisman@collabora.com
Cc: Khazhismel Kumykov <khazhy@google.com>
Suggested-by: Junho Ryu <jayr@google.com>
Reviewed-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'include/scsi')
| -rw-r--r-- | include/scsi/scsi_transport_iscsi.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/scsi/scsi_transport_iscsi.h b/include/scsi/scsi_transport_iscsi.h index fa8814245796..bdcb6d69d154 100644 --- a/include/scsi/scsi_transport_iscsi.h +++ b/include/scsi/scsi_transport_iscsi.h @@ -188,6 +188,13 @@ extern void iscsi_ping_comp_event(uint32_t host_no, uint32_t status, uint32_t pid, uint32_t data_size, uint8_t *data); +/* iscsi class connection state */ +enum iscsi_connection_state { + ISCSI_CONN_UP = 0, + ISCSI_CONN_DOWN, + ISCSI_CONN_FAILED, +}; + struct iscsi_cls_conn { struct list_head conn_list; /* item in connlist */ struct list_head conn_list_err; /* item in connlist_err */ @@ -198,6 +205,7 @@ struct iscsi_cls_conn { struct iscsi_endpoint *ep; struct device dev; /* sysfs transport/container device */ + enum iscsi_connection_state state; }; #define iscsi_dev_to_conn(_dev) \ |