lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

[SCSI] ipr: Write caching state host attribute

Browse Source 
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>
This commit is contained in:
brking@us.ibm.com
2005-11-01 17:01:14 -06:00
committed by James Bottomley
parent 692aebfc69
commit 622750406a
2 changed files with 210 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
drivers/scsi/ipr.h
View File

@ -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;