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[SCSI] zfcp: Enable data division support for FCP devices

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Try to enable data division support for FCP devices and indicate in
the adapter status flag if it succeeded.

Reviewed-by: Swen Schillig <[email protected]>
Signed-off-by: Christof Schmitt <[email protected]>
Signed-off-by: James Bottomley <[email protected]>
This commit is contained in:
Christof Schmitt 2010-07-16 15:37:41 +02:00 • committed by James Bottomley
commit dcc18f48a2
4 changed files with 19 additions and 1 deletions
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6
arch/s390/include/asm/qdio.h
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@ -84,6 +84,7 @@ struct qdr {
#define QIB_AC_OUTBOUND_PCI_SUPPORTED 0x40
#define QIB_RFLAGS_ENABLE_QEBSM 0x80
#define QIB_RFLAGS_ENABLE_DATA_DIV 0x02
/**
* struct qib - queue information block (QIB)
@ -284,6 +285,9 @@ struct slsb {
u8 val[QDIO_MAX_BUFFERS_PER_Q];
} __attribute__ ((packed, aligned(256)));
#define CHSC_AC2_DATA_DIV_AVAILABLE 0x0010
#define CHSC_AC2_DATA_DIV_ENABLED 0x0002
struct qdio_ssqd_desc {
u8 flags;
u8:8;
@ -332,6 +336,7 @@ typedef void qdio_handler_t(struct ccw_device *, unsigned int, int,
* @adapter_name: name for the adapter
* @qib_param_field_format: format for qib_parm_field
* @qib_param_field: pointer to 128 bytes or NULL, if no param field
* @qib_rflags: rflags to set
* @input_slib_elements: pointer to no_input_qs * 128 words of data or NULL
* @output_slib_elements: pointer to no_output_qs * 128 words of data or NULL
* @no_input_qs: number of input queues
@ -348,6 +353,7 @@ struct qdio_initialize {
unsigned char adapter_name[8];
unsigned int qib_param_field_format;
unsigned char *qib_param_field;
unsigned char qib_rflags;
unsigned long *input_slib_elements;
unsigned long *output_slib_elements;
unsigned int no_input_qs;