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| author | Mike Christie <michaelc@cs.wisc.edu> | 2008-05-21 15:54:17 -0500 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@HansenPartnership.com> | 2008-07-12 08:22:21 -0500 |
| commit | 3cf7b233ffc45d4fc381221f74d24f10e692c4ea (patch) | |
| tree | c1bd741628e1e75cf07fa5c47fbdaa9e9f9236ee /include/scsi/libiscsi.h | |
| parent | 88dfd340b9dece8fcaa1a2d4c782338926c017f7 (diff) | |
| download | op-kernel-dev-3cf7b233ffc45d4fc381221f74d24f10e692c4ea.zip op-kernel-dev-3cf7b233ffc45d4fc381221f74d24f10e692c4ea.tar.gz | |
[SCSI] libiscsi: fix cmds_max setting
Drivers expect that the cmds_max value they pass to the iscsi layer
is the max scsi commands + mgmt tasks. This patch implements that
and fixes some checks for nr cmd limits.
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'include/scsi/libiscsi.h')
| -rw-r--r-- | include/scsi/libiscsi.h | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/include/scsi/libiscsi.h b/include/scsi/libiscsi.h index 21cfb1d..5bf0187 100644 --- a/include/scsi/libiscsi.h +++ b/include/scsi/libiscsi.h @@ -52,9 +52,7 @@ struct device; #endif #define ISCSI_DEF_XMIT_CMDS_MAX 128 /* must be power of 2 */ -#define ISCSI_MGMT_CMDS_MAX 16 /* must be power of 2 */ - -#define ISCSI_MGMT_ITT_OFFSET 0xa00 +#define ISCSI_MGMT_CMDS_MAX 15 #define ISCSI_DEF_CMD_PER_LUN 32 #define ISCSI_MAX_CMD_PER_LUN 128 @@ -72,7 +70,10 @@ enum { /* Connection suspend "bit" */ #define ISCSI_SUSPEND_BIT 1 -#define ISCSI_ITT_MASK (0xfff) +#define ISCSI_ITT_MASK (0x1fff) +#define ISCSI_TOTAL_CMDS_MAX 4096 +/* this must be a power of two greater than ISCSI_MGMT_CMDS_MAX */ +#define ISCSI_TOTAL_CMDS_MIN 16 #define ISCSI_AGE_SHIFT 28 #define ISCSI_AGE_MASK (0xf << ISCSI_AGE_SHIFT) |
