diff options
| author | James Smart <jsmart2021@gmail.com> | 2017-10-25 16:43:15 -0700 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2017-11-01 16:34:36 +0100 |
| commit | ac7fe82b6fcf77e757e88005c33b8147c1b7b73f (patch) | |
| tree | 8ccc6d6e46b7e3cda20f238ed0974a127a3258ed /include/linux/nvme-fc-driver.h | |
| parent | 44c6ec77e12c387aaba420b30a54b94966f0d9e8 (diff) | |
| download | lwn-ac7fe82b6fcf77e757e88005c33b8147c1b7b73f.tar.gz lwn-ac7fe82b6fcf77e757e88005c33b8147c1b7b73f.zip | |
nvme-fc: add a dev_loss_tmo field to the remoteport
Add a dev_loss_tmo value, paralleling the SCSI FC transport, for device
connectivity loss.
The transport initializes the value in the nvme_fc_register_remoteport()
call. If the value is not set, a default of 60s is set.
Add a new routine to the api, nvme_fc_set_remoteport_devloss() routine,
which allows the lldd to dynamically update the value on an existing
remoteport.
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'include/linux/nvme-fc-driver.h')
| -rw-r--r-- | include/linux/nvme-fc-driver.h | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/include/linux/nvme-fc-driver.h b/include/linux/nvme-fc-driver.h index 2be4db353937..496ff759f84c 100644 --- a/include/linux/nvme-fc-driver.h +++ b/include/linux/nvme-fc-driver.h @@ -40,6 +40,8 @@ * @node_name: FC WWNN for the port * @port_name: FC WWPN for the port * @port_role: What NVME roles are supported (see FC_PORT_ROLE_xxx) + * @dev_loss_tmo: maximum delay for reconnects to an association on + * this device. Used only on a remoteport. * * Initialization values for dynamic port fields: * @port_id: FC N_Port_ID currently assigned the port. Upper 8 bits must @@ -50,6 +52,7 @@ struct nvme_fc_port_info { u64 port_name; u32 port_role; u32 port_id; + u32 dev_loss_tmo; }; @@ -200,6 +203,9 @@ enum nvme_fc_obj_state { * The length of the buffer corresponds to the local_priv_sz * value specified in the nvme_fc_port_template supplied by * the LLDD. + * @dev_loss_tmo: maximum delay for reconnects to an association on + * this device. To modify, lldd must call + * nvme_fc_set_remoteport_devloss(). * * Fields with dynamic values. Values may change base on link state. LLDD * may reference fields directly to change them. Initialized by the @@ -257,10 +263,9 @@ struct nvme_fc_remote_port { u32 port_role; u64 node_name; u64 port_name; - struct nvme_fc_local_port *localport; - void *private; + u32 dev_loss_tmo; /* dynamic fields */ u32 port_id; @@ -446,6 +451,8 @@ int nvme_fc_unregister_remoteport(struct nvme_fc_remote_port *remoteport); void nvme_fc_rescan_remoteport(struct nvme_fc_remote_port *remoteport); +int nvme_fc_set_remoteport_devloss(struct nvme_fc_remote_port *remoteport, + u32 dev_loss_tmo); /* |