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[rdma-next,3/9] i40iw: Correct Q1/XF object count equation

Message ID 20171222154702.12632-4-shiraz.saleem@intel.com (mailing list archive)
State Accepted
Delegated to: Jason Gunthorpe
Headers show

Commit Message

Saleem, Shiraz Dec. 22, 2017, 3:46 p.m. UTC 
Lower Inbound RDMA Read Queue (Q1) object count by a factor of 2
as it is incorrectly doubled. Also, round up Q1 and Transmit FIFO (XF)
object count to power of 2 to satisfy hardware requirement.

Fixes: 86dbcd0f12e9 ("i40iw: add file to handle cqp calls")
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
---
 drivers/infiniband/hw/i40iw/i40iw_ctrl.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)
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Patch

diff --git a/drivers/infiniband/hw/i40iw/i40iw_ctrl.c b/drivers/infiniband/hw/i40iw/i40iw_ctrl.c
index 1f9594e..fb0bd6a 100644
--- a/drivers/infiniband/hw/i40iw/i40iw_ctrl.c
+++ b/drivers/infiniband/hw/i40iw/i40iw_ctrl.c
@@ -3910,8 +3910,10 @@  enum i40iw_status_code i40iw_config_fpm_values(struct i40iw_sc_dev *dev, u32 qp_
 		hmc_info->hmc_obj[I40IW_HMC_IW_APBVT_ENTRY].cnt = 1;
 		hmc_info->hmc_obj[I40IW_HMC_IW_MR].cnt = mrwanted;
 
-		hmc_info->hmc_obj[I40IW_HMC_IW_XF].cnt = I40IW_MAX_WQ_ENTRIES * qpwanted;
-		hmc_info->hmc_obj[I40IW_HMC_IW_Q1].cnt = 4 * I40IW_MAX_IRD_SIZE * qpwanted;
+		hmc_info->hmc_obj[I40IW_HMC_IW_XF].cnt =
+			roundup_pow_of_two(I40IW_MAX_WQ_ENTRIES * qpwanted);
+		hmc_info->hmc_obj[I40IW_HMC_IW_Q1].cnt =
+			roundup_pow_of_two(2 * I40IW_MAX_IRD_SIZE * qpwanted);
 		hmc_info->hmc_obj[I40IW_HMC_IW_XFFL].cnt =
 			hmc_info->hmc_obj[I40IW_HMC_IW_XF].cnt / hmc_fpm_misc->xf_block_size;
 		hmc_info->hmc_obj[I40IW_HMC_IW_Q1FL].cnt =