diff options
author | James Smart <jsmart2021@gmail.com> | 2020-03-31 09:50:10 -0700 |
---|---|---|
committer | Jens Axboe <axboe@kernel.dk> | 2020-05-09 16:18:34 -0600 |
commit | 4c2805aab519a39e8adf281afcef40174d48fd3f (patch) | |
tree | 59eaf98d3b552d44d2bc550db4550d938f21f8f8 /drivers/scsi/lpfc/lpfc_nvme.h | |
parent | 9aa09e98b288649544c74d1a7b88223f36e4bffd (diff) |
lpfc: nvmet: Add support for NVME LS request hosthandle
As the nvmet layer does not have the concept of a remoteport object, which
can be used to identify the entity on the other end of the fabric that is
to receive an LS, the hosthandle was introduced. The driver passes the
hosthandle, a value representative of the remote port, with a ls request
receive. The LS request will create the association. The transport will
remember the hosthandle for the association, and if there is a need to
initiate a LS request to the remote port for the association, the
hosthandle will be used. When the driver loses connectivity with the
remote port, it needs to notify the transport that the hosthandle is no
longer valid, allowing the transport to terminate associations related to
the hosthandle.
This patch adds support to the driver for the hosthandle. The driver will
use the ndlp pointer of the remote port for the hosthandle in calls to
nvmet_fc_rcv_ls_req(). The discovery engine is updated to invalidate the
hosthandle whenever connectivity with the remote port is lost.
Signed-off-by: Paul Ely <paul.ely@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_nvme.h')
-rw-r--r-- | drivers/scsi/lpfc/lpfc_nvme.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/scsi/lpfc/lpfc_nvme.h b/drivers/scsi/lpfc/lpfc_nvme.h index f28a6789e252..4a4c3f780e1f 100644 --- a/drivers/scsi/lpfc/lpfc_nvme.h +++ b/drivers/scsi/lpfc/lpfc_nvme.h @@ -98,9 +98,12 @@ struct lpfc_nvme_fcpreq_priv { #define LPFC_NVMET_WAIT_TMO (5 * MSEC_PER_SEC) /* Used for NVME Target */ +#define LPFC_NVMET_INV_HOST_ACTIVE 1 + struct lpfc_nvmet_tgtport { struct lpfc_hba *phba; struct completion *tport_unreg_cmp; + atomic_t state; /* tracks nvmet hosthandle invalidation */ /* Stats counters - lpfc_nvmet_unsol_ls_buffer */ atomic_t rcv_ls_req_in; |