From 622750406a1b4b230f1ee595cb555e5d9222feeb Mon Sep 17 00:00:00 2001 From: "brking@us.ibm.com" Date: Tue, 1 Nov 2005 17:01:14 -0600 Subject: [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 Signed-off-by: James Bottomley --- drivers/scsi/ipr.h | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) (limited to 'drivers/scsi/ipr.h') diff --git a/drivers/scsi/ipr.h b/drivers/scsi/ipr.h index b8c1603f99e..6d9aef001fe 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; -- cgit v1.2.3