From a03d9f94cc54199bf681729b16ba649d7206369e Mon Sep 17 00:00:00 2001 From: Steve Wise Date: Wed, 9 Apr 2014 09:38:27 -0500 Subject: 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 Signed-off-by: Roland Dreier --- drivers/infiniband/hw/cxgb4/t4.h | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) (limited to 'drivers/infiniband/hw/cxgb4/t4.h') 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) -- cgit v1.2.1