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authorGabriel Krisman Bertazi <krisman@collabora.com>2020-03-17 19:34:22 -0400
committerMartin K. Petersen <martin.petersen@oracle.com>2020-03-26 21:59:20 -0400
commit82b8cf40bfe1077d8d757e223eb7a35c25f650ec (patch)
tree4b64d91b9f716319f26e1c2a125c90c7eac6ab75 /include/scsi
parent1a0275239ed6437ee4412c89070bd4222cfe0611 (diff)
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.h8
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) \