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authorChristof Schmitt <christof.schmitt@de.ibm.com>2010-07-16 15:37:41 +0200
committerJames Bottomley <James.Bottomley@suse.de>2010-07-28 09:48:55 -0500
commitdcc18f48a2f1a44c5e8848f30d0cf53a8066c62a (patch)
tree6bf6e20f2309b0a077f328189d9f6656f554cedf /arch
parentd23948ea38c4c6aa13e4df903dfdd71cabd0e6a3 (diff)
downloadop-kernel-dev-dcc18f48a2f1a44c5e8848f30d0cf53a8066c62a.zip
op-kernel-dev-dcc18f48a2f1a44c5e8848f30d0cf53a8066c62a.tar.gz
[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')
-rw-r--r--arch/s390/include/asm/qdio.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/s390/include/asm/qdio.h b/arch/s390/include/asm/qdio.h
index 0eaae626..2ba6302 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;
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