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| author | Christof Schmitt <christof.schmitt@de.ibm.com> | 2010-07-16 15:37:41 +0200 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@suse.de> | 2010-07-28 16:48:55 +0200 |
| commit | dcc18f48a2f1a44c5e8848f30d0cf53a8066c62a (patch) | |
| tree | 6bf6e20f2309b0a077f328189d9f6656f554cedf /arch/s390 | |
| parent | [SCSI] zfcp: Prevent access on uninitialized memory. (diff) | |
| download | linux-dcc18f48a2f1a44c5e8848f30d0cf53a8066c62a.tar.xz linux-dcc18f48a2f1a44c5e8848f30d0cf53a8066c62a.zip | |
[SCSI] zfcp: Enable data division support for FCP devices
Try to enable data division support for FCP devices and indicate in
the adapter status flag if it succeeded.
Reviewed-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'arch/s390')
| -rw-r--r-- | arch/s390/include/asm/qdio.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/s390/include/asm/qdio.h b/arch/s390/include/asm/qdio.h index 0eaae6260274..2ba630276295 100644 --- a/arch/s390/include/asm/qdio.h +++ b/arch/s390/include/asm/qdio.h @@ -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; |