From f6aa783546460c27b0e8ed7f086a93d0b61119c7 Mon Sep 17 00:00:00 2001 From: Jianxin Xiong Date: Sun, 25 Sep 2016 07:41:18 -0700 Subject: [PATCH] IB/hfi1: Increase default settings of max_cqes and max_qps The ib_write_bw test allows using up to 16384 QPs. When a relatively large number of QPs (within that range) is used, the test can fail because the number of CQ entries needed exceeds the limit set by the driver. This patch increases the default setting of max_cqes from 0x2FFFF (196607) to 0x2FFFFF(3145727), which is sufficient to cover the maximum number needed by the ib_write_bw test (2097152). The default setting of max_qps is also increased from 16384 to 32768 to allow the test to run successfully with 16383 or 16384 QPs. Reviewed-by: Mike Marciniszyn Signed-off-by: Jianxin Xiong Signed-off-by: Dennis Dalessandro Signed-off-by: Doug Ledford --- drivers/infiniband/hw/hfi1/verbs.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/infiniband/hw/hfi1/verbs.c b/drivers/infiniband/hw/hfi1/verbs.c index 0a0e93eb80e2..1f193340dac0 100644 --- a/drivers/infiniband/hw/hfi1/verbs.c +++ b/drivers/infiniband/hw/hfi1/verbs.c @@ -76,7 +76,7 @@ static unsigned int hfi1_max_ahs = 0xFFFF; module_param_named(max_ahs, hfi1_max_ahs, uint, S_IRUGO); MODULE_PARM_DESC(max_ahs, "Maximum number of address handles to support"); -unsigned int hfi1_max_cqes = 0x2FFFF; +unsigned int hfi1_max_cqes = 0x2FFFFF; module_param_named(max_cqes, hfi1_max_cqes, uint, S_IRUGO); MODULE_PARM_DESC(max_cqes, "Maximum number of completion queue entries to support"); @@ -89,7 +89,7 @@ unsigned int hfi1_max_qp_wrs = 0x3FFF; module_param_named(max_qp_wrs, hfi1_max_qp_wrs, uint, S_IRUGO); MODULE_PARM_DESC(max_qp_wrs, "Maximum number of QP WRs to support"); -unsigned int hfi1_max_qps = 16384; +unsigned int hfi1_max_qps = 32768; module_param_named(max_qps, hfi1_max_qps, uint, S_IRUGO); MODULE_PARM_DESC(max_qps, "Maximum number of QPs to support"); -- 2.11.0