diff options
| author | James Smart <james.smart@broadcom.com> | 2020-11-15 11:26:34 -0800 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2020-11-17 00:43:54 -0500 |
| commit | c6adba150191762a7e58644f9e522d9d6d945e1c (patch) | |
| tree | 9854c64a8c1b3fb0a5b3d804c1cd40d53a5e5b11 /drivers/scsi/lpfc/lpfc_disc.h | |
| parent | e9b1108316b9b5beee03f731c7c9c7c874e537fa (diff) | |
scsi: lpfc: Rework remote port lock handling
Currently the discovery layers within the driver use the SCSI midlayer
host_lock to access node-specific structures. This can contend with the I/O
path and is too coarse of a lock.
Rework the driver so that it uses a lock specific to the remote port node
structure when accessing the structure contents. A few of the changes
brought out spots were some slightly reorganized routines worked better.
Link: https://lore.kernel.org/r/20201115192646.12977-6-james.smart@broadcom.com
Co-developed-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_disc.h')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_disc.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/scsi/lpfc/lpfc_disc.h b/drivers/scsi/lpfc/lpfc_disc.h index b831f10a686c..7757175a5c37 100644 --- a/drivers/scsi/lpfc/lpfc_disc.h +++ b/drivers/scsi/lpfc/lpfc_disc.h @@ -81,6 +81,9 @@ struct lpfc_nodelist { struct list_head nlp_listp; struct lpfc_name nlp_portname; struct lpfc_name nlp_nodename; + + spinlock_t lock; /* Node management lock */ + uint32_t nlp_flag; /* entry flags */ uint32_t nlp_DID; /* FC D_ID of entry */ uint32_t nlp_last_elscmd; /* Last ELS cmd sent */ |