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| author | Swen Schillig <swen@vnet.ibm.com> | 2011-08-15 14:40:31 +0200 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2011-08-27 16:37:02 +0200 |
| commit | dfe5bb506172307e43287b8962348fb85801c0f4 (patch) | |
| tree | e0d37e3d37068b39b886a3895f1cfacc7fb8c04f /arch/s390 | |
| parent | [SCSI] zfcp: non-experimental support for DIF/DIX (diff) | |
| download | linux-dfe5bb506172307e43287b8962348fb85801c0f4.tar.xz linux-dfe5bb506172307e43287b8962348fb85801c0f4.zip | |
[SCSI] qdio: base support for hardware data router with zfcp
FICON Express8S supports hardware data router, which requires an
adapted qdio request format.
This part 1/2 provides the qdio base required for exploitation 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 'arch/s390')
| -rw-r--r-- | arch/s390/include/asm/qdio.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/s390/include/asm/qdio.h b/arch/s390/include/asm/qdio.h index 15c97625df8d..cbbf7d831a33 100644 --- a/arch/s390/include/asm/qdio.h +++ b/arch/s390/include/asm/qdio.h @@ -46,6 +46,8 @@ struct qdesfmt0 { u32 : 16; } __attribute__ ((packed)); +#define QDR_AC_MULTI_BUFFER_ENABLE 0x01 + /** * struct qdr - queue description record (QDR) * @qfmt: queue format @@ -222,6 +224,8 @@ struct slsb { u8 val[QDIO_MAX_BUFFERS_PER_Q]; } __attribute__ ((packed, aligned(256))); +#define CHSC_AC2_MULTI_BUFFER_AVAILABLE 0x0080 +#define CHSC_AC2_MULTI_BUFFER_ENABLED 0x0040 #define CHSC_AC2_DATA_DIV_AVAILABLE 0x0010 #define CHSC_AC2_DATA_DIV_ENABLED 0x0002 @@ -287,6 +291,7 @@ typedef void qdio_handler_t(struct ccw_device *, unsigned int, int, struct qdio_initialize { struct ccw_device *cdev; unsigned char q_format; + unsigned char qdr_ac; unsigned char adapter_name[8]; unsigned int qib_param_field_format; unsigned char *qib_param_field; |