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[SCSI] qdio: base support for hardware data router with zfcp

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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>
This commit is contained in:
Swen Schillig
2011-08-15 14:40:31 +02:00
committed by James Bottomley
parent cc405acee2
commit dfe5bb5061
3 changed files with 14 additions and 3 deletions
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5
arch/s390/include/asm/qdio.h
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@@ -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;