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| author |   Steve Wise <swise@opengridcomputing.com> | 2014-04-09 09:38:27 -0500 |
|---|---|---|
| committer |   Roland Dreier <roland@purestorage.com> | 2014-04-11 11:36:08 -0700 |
| commit | a03d9f94cc54199bf681729b16ba649d7206369e (patch) | |
| tree | e2bebbff12cd98b99d2e8110cdd1a4b8af5afea9 /drivers/infiniband/hw/cxgb4/t4.h | |
| parent | RDMA/cxgb4: SQ flush fix (diff) | |
| download | linux-dev-a03d9f94cc54199bf681729b16ba649d7206369e.tar.xz linux-dev-a03d9f94cc54199bf681729b16ba649d7206369e.zip | |
RDMA/cxgb4: Max fastreg depth depends on DSGL support
The max depth of a fastreg mr depends on whether the device supports
DSGL or not. So compute it dynamically based on the device support
and the module use_dsgl option.
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Diffstat (limited to 'drivers/infiniband/hw/cxgb4/t4.h')
| -rw-r--r-- | drivers/infiniband/hw/cxgb4/t4.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/cxgb4/t4.h b/drivers/infiniband/hw/cxgb4/t4.h index 1f329fac9801..2178f3198410 100644 --- a/drivers/infiniband/hw/cxgb4/t4.h +++ b/drivers/infiniband/hw/cxgb4/t4.h @@ -84,7 +84,14 @@ struct t4_status_page { sizeof(struct fw_ri_isgl)) / sizeof(struct fw_ri_sge)) #define T4_MAX_FR_IMMD ((T4_SQ_NUM_BYTES - sizeof(struct fw_ri_fr_nsmr_wr) - \ sizeof(struct fw_ri_immd)) & ~31UL) -#define T4_MAX_FR_DEPTH (1024 / sizeof(u64)) +#define T4_MAX_FR_IMMD_DEPTH (T4_MAX_FR_IMMD / sizeof(u64)) +#define T4_MAX_FR_DSGL 1024 +#define T4_MAX_FR_DSGL_DEPTH (T4_MAX_FR_DSGL / sizeof(u64)) + +static inline int t4_max_fr_depth(int use_dsgl) +{ + return use_dsgl ? T4_MAX_FR_DSGL_DEPTH : T4_MAX_FR_IMMD_DEPTH; +} #define T4_RQ_NUM_SLOTS 2 #define T4_RQ_NUM_BYTES (T4_EQ_ENTRY_SIZE * T4_RQ_NUM_SLOTS) |