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| author | brking@us.ibm.com <brking@us.ibm.com> | 2005-11-01 17:01:14 -0600 |
|---|---|---|
| committer | James Bottomley <jejb@mulgrave.(none)> | 2005-11-06 13:03:24 -0600 |
| commit | 622750406a1b4b230f1ee595cb555e5d9222feeb (patch) | |
| tree | e5f6ac8b1c017f523060a3fbb74a616bccb64b99 /drivers/scsi/ipr.h | |
| parent | 692aebfc6982a64e70ed11467545f2b9c95e6592 (diff) | |
| download | lwn-622750406a1b4b230f1ee595cb555e5d9222feeb.tar.gz lwn-622750406a1b4b230f1ee595cb555e5d9222feeb.zip | |
[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.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/scsi/ipr.h b/drivers/scsi/ipr.h index b8c1603f99eb..6d9aef001fe7 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; |