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| author |   Christof Schmitt <christof.schmitt@de.ibm.com> | 2008-12-19 16:56:58 +0100 |
|---|---|---|
| committer |   James Bottomley <James.Bottomley@HansenPartnership.com> | 2008-12-29 11:38:27 -0600 |
| commit | e0d7fcb5ecad495a54f7334e410f5e16e1da7f78 (patch) | |
| tree | f891ec120082f334fada993d6c6bb54e279ff010 /drivers/s390/scsi | |
| parent | [SCSI] zfcp: Remove initial device data from zfcp_data (diff) | |
| download | linux-dev-e0d7fcb5ecad495a54f7334e410f5e16e1da7f78.tar.xz linux-dev-e0d7fcb5ecad495a54f7334e410f5e16e1da7f78.zip | |
[SCSI] zfcp: Simplify mask lookups for incoming RSCNs
Use an array for looking up the mask corresponding to the 2-bit
information instead of the switch/case.
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Acked-by: Felix Beck <felix@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'drivers/s390/scsi')
| -rw-r--r-- | drivers/s390/scsi/zfcp_def.h | 14 | ||||
| -rw-r--r-- | drivers/s390/scsi/zfcp_fc.c | 31 |
2 files changed, 15 insertions, 30 deletions
diff --git a/drivers/s390/scsi/zfcp_def.h b/drivers/s390/scsi/zfcp_def.h index 9ca91316e068..4f3b7a5ce7fe 100644 --- a/drivers/s390/scsi/zfcp_def.h +++ b/drivers/s390/scsi/zfcp_def.h @@ -159,20 +159,6 @@ struct fcp_rscn_element { u32 nport_did:24; } __attribute__((packed)); -#define ZFCP_PORT_ADDRESS 0x0 -#define ZFCP_AREA_ADDRESS 0x1 -#define ZFCP_DOMAIN_ADDRESS 0x2 -#define ZFCP_FABRIC_ADDRESS 0x3 - -#define ZFCP_PORTS_RANGE_PORT 0xFFFFFF -#define ZFCP_PORTS_RANGE_AREA 0xFFFF00 -#define ZFCP_PORTS_RANGE_DOMAIN 0xFF0000 -#define ZFCP_PORTS_RANGE_FABRIC 0x000000 - -#define ZFCP_NO_PORTS_PER_AREA 0x100 -#define ZFCP_NO_PORTS_PER_DOMAIN 0x10000 -#define ZFCP_NO_PORTS_PER_FABRIC 0x1000000 - /* see fc-ph */ struct fcp_logo { u32 command; diff --git a/drivers/s390/scsi/zfcp_fc.c b/drivers/s390/scsi/zfcp_fc.c index f009f2a7ec3e..396f05ed912f 100644 --- a/drivers/s390/scsi/zfcp_fc.c +++ b/drivers/s390/scsi/zfcp_fc.c @@ -11,6 +11,20 @@ #include "zfcp_ext.h" +enum rscn_address_format { + RSCN_PORT_ADDRESS = 0x0, + RSCN_AREA_ADDRESS = 0x1, + RSCN_DOMAIN_ADDRESS = 0x2, + RSCN_FABRIC_ADDRESS = 0x3, +}; + +static u32 rscn_range_mask[] = { + [RSCN_PORT_ADDRESS] = 0xFFFFFF, + [RSCN_AREA_ADDRESS] = 0xFFFF00, + [RSCN_DOMAIN_ADDRESS] = 0xFF0000, + [RSCN_FABRIC_ADDRESS] = 0x000000, +}; + struct ct_iu_gpn_ft_req { struct ct_hdr header; u8 flags; @@ -160,22 +174,7 @@ static void zfcp_fc_incoming_rscn(struct zfcp_fsf_req *fsf_req) for (i = 1; i < no_entries; i++) { /* skip head and start with 1st element */ fcp_rscn_element++; - switch (fcp_rscn_element->addr_format) { - case ZFCP_PORT_ADDRESS: - range_mask = ZFCP_PORTS_RANGE_PORT; - break; - case ZFCP_AREA_ADDRESS: - range_mask = ZFCP_PORTS_RANGE_AREA; - break; - case ZFCP_DOMAIN_ADDRESS: - range_mask = ZFCP_PORTS_RANGE_DOMAIN; - break; - case ZFCP_FABRIC_ADDRESS: - range_mask = ZFCP_PORTS_RANGE_FABRIC; - break; - default: - continue; - } + range_mask = rscn_range_mask[fcp_rscn_element->addr_format]; _zfcp_fc_incoming_rscn(fsf_req, range_mask, fcp_rscn_element); } schedule_work(&fsf_req->adapter->scan_work); |