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authorbrking@us.ibm.com <brking@us.ibm.com>2005-11-01 17:01:14 -0600
committerJames Bottomley <jejb@mulgrave.(none)>2005-11-06 13:03:24 -0600
commit622750406a1b4b230f1ee595cb555e5d9222feeb (patch)
treee5f6ac8b1c017f523060a3fbb74a616bccb64b99 /drivers/scsi/ipr.h
parent692aebfc6982a64e70ed11467545f2b9c95e6592 (diff)
downloadop-kernel-dev-622750406a1b4b230f1ee595cb555e5d9222feeb.zip
op-kernel-dev-622750406a1b4b230f1ee595cb555e5d9222feeb.tar.gz
[SCSI] ipr: Write caching state host attribute
Adds a scsi_host sysfs attribute and module parm to enable/disable the write cache on an ipr adapter. Signed-off-by: Brian King <brking@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'drivers/scsi/ipr.h')
-rw-r--r--drivers/scsi/ipr.h18
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/scsi/ipr.h b/drivers/scsi/ipr.h
index b8c1603f..6d9aef0 100644
--- a/drivers/scsi/ipr.h
+++ b/drivers/scsi/ipr.h
@@ -541,6 +541,15 @@ struct ipr_inquiry_page3 {
u8 patch_number[4];
}__attribute__((packed));
+#define IPR_INQUIRY_PAGE0_ENTRIES 20
+struct ipr_inquiry_page0 {
+ u8 peri_qual_dev_type;
+ u8 page_code;
+ u8 reserved1;
+ u8 len;
+ u8 page[IPR_INQUIRY_PAGE0_ENTRIES];
+}__attribute__((packed));
+
struct ipr_hostrcb_device_data_entry {
struct ipr_vpd vpd;
struct ipr_res_addr dev_res_addr;
@@ -731,6 +740,7 @@ struct ipr_resource_table {
struct ipr_misc_cbs {
struct ipr_ioa_vpd ioa_vpd;
+ struct ipr_inquiry_page0 page0_data;
struct ipr_inquiry_page3 page3_data;
struct ipr_mode_pages mode_pages;
struct ipr_supported_device supp_dev;
@@ -813,6 +823,13 @@ enum ipr_sdt_state {
DUMP_OBTAINED
};
+enum ipr_cache_state {
+ CACHE_NONE,
+ CACHE_DISABLED,
+ CACHE_ENABLED,
+ CACHE_INVALID
+};
+
/* Per-controller data */
struct ipr_ioa_cfg {
char eye_catcher[8];
@@ -829,6 +846,7 @@ struct ipr_ioa_cfg {
u8 allow_cmds:1;
u8 allow_ml_add_del:1;
+ enum ipr_cache_state cache_state;
u16 type; /* CCIN of the card */
u8 log_level;
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