diff options
| author | Christof Schmitt <christof.schmitt@de.ibm.com> | 2010-09-08 14:39:56 +0200 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@suse.de> | 2010-09-17 04:54:18 +0200 |
| commit | f8210e34887e1feb977a9b6b8caa086855af40c9 (patch) | |
| tree | b9b2fe4f289f326334ac7327d7764f0943cc1229 /drivers/s390 | |
| parent | [SCSI] zfcp: Use SCSI device data zfcp_scsi_dev instead of zfcp_unit (diff) | |
| download | linux-f8210e34887e1feb977a9b6b8caa086855af40c9.tar.xz linux-f8210e34887e1feb977a9b6b8caa086855af40c9.zip | |
[SCSI] zfcp: Allow midlayer to scan for LUNs when running in NPIV mode
Enable the LUN scanning mechanism in the SCSI midlayer:
- Do not set the disable_target_scan bit in the FC transport class.
- Set max_lun to 0xFFFFFFFF to allow the midlayer scan to include
the two-level hierachical LUNs (like 0x40XX40XX00000000, but in SCSI
midlayer LUN format).
- Set max_id to a high value to allow triggering the SCSI device
rescan from sysfs.
When running in NPIV mode, zfcp accepts all LUNs in slave_attach. When
running in non-NPIV mode, the list of zfcp_unit structs determines
which SCSI devices are allowed on the current system.
Reviewed-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'drivers/s390')
| -rw-r--r-- | drivers/s390/scsi/zfcp_scsi.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/s390/scsi/zfcp_scsi.c b/drivers/s390/scsi/zfcp_scsi.c index bc7217b88989..1e8d0cc7e1df 100644 --- a/drivers/s390/scsi/zfcp_scsi.c +++ b/drivers/s390/scsi/zfcp_scsi.c @@ -143,7 +143,8 @@ static int zfcp_scsi_slave_alloc(struct scsi_device *sdev) unit = zfcp_unit_find(port, zfcp_scsi_dev_lun(sdev)); if (unit) put_device(&unit->dev); - else { + + if (!unit && !(adapter->connection_features & FSF_FEATURE_NPIV_MODE)) { put_device(&port->dev); return -ENXIO; } @@ -309,8 +310,8 @@ int zfcp_adapter_scsi_register(struct zfcp_adapter *adapter) } /* tell the SCSI stack some characteristics of this adapter */ - adapter->scsi_host->max_id = 1; - adapter->scsi_host->max_lun = 1; + adapter->scsi_host->max_id = 511; + adapter->scsi_host->max_lun = 0xFFFFFFFF; adapter->scsi_host->max_channel = 0; adapter->scsi_host->unique_id = dev_id.devno; adapter->scsi_host->max_cmd_len = 16; /* in struct fcp_cmnd */ @@ -687,7 +688,6 @@ struct fc_function_template zfcp_transport_functions = { .show_host_port_type = 1, .show_host_speed = 1, .show_host_port_id = 1, - .disable_target_scan = 1, .dd_bsg_size = sizeof(struct zfcp_fsf_ct_els), }; |