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| author | Swen Schillig <swen@vnet.ibm.com> | 2011-08-15 14:40:32 +0200 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2011-08-27 08:37:03 -0600 |
| commit | 86a9668a8d29ea711613e1cb37efa68e7c4db564 (patch) | |
| tree | 58a39ba842f928bd9629cfb8468322a96fe7459f /drivers/s390/scsi/zfcp_def.h | |
| parent | dfe5bb506172307e43287b8962348fb85801c0f4 (diff) | |
| download | linux-stable-86a9668a8d29ea711613e1cb37efa68e7c4db564.tar.gz linux-stable-86a9668a8d29ea711613e1cb37efa68e7c4db564.tar.bz2 linux-stable-86a9668a8d29ea711613e1cb37efa68e7c4db564.zip | |
[SCSI] zfcp: support for hardware data router
FICON Express8S supports hardware data router, which requires an
adapted qdio request format.
This part 2/2 exploits the functionality in zfcp.
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Steffen Maier <maier@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/s390/scsi/zfcp_def.h')
| -rw-r--r-- | drivers/s390/scsi/zfcp_def.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/s390/scsi/zfcp_def.h b/drivers/s390/scsi/zfcp_def.h index 527ba48eea57..ed5d921e82cd 100644 --- a/drivers/s390/scsi/zfcp_def.h +++ b/drivers/s390/scsi/zfcp_def.h @@ -72,6 +72,7 @@ struct zfcp_reqlist; #define ZFCP_STATUS_COMMON_NOESC 0x00200000 /* adapter status */ +#define ZFCP_STATUS_ADAPTER_MB_ACT 0x00000001 #define ZFCP_STATUS_ADAPTER_QDIOUP 0x00000002 #define ZFCP_STATUS_ADAPTER_SIOSL_ISSUED 0x00000004 #define ZFCP_STATUS_ADAPTER_XCONFIG_OK 0x00000008 @@ -314,4 +315,10 @@ struct zfcp_fsf_req { void (*handler)(struct zfcp_fsf_req *); }; +static inline +int zfcp_adapter_multi_buffer_active(struct zfcp_adapter *adapter) +{ + return atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_MB_ACT; +} + #endif /* ZFCP_DEF_H */ |