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Commit e1e66cc2 authored by Sagi Grimberg's avatar Sagi Grimberg Committed by Roland Dreier
Browse files

IB/mlx5: Initialize mlx5_ib_qp signature-related members 



If user requested signature enable we initialize relevant mlx5_ib_qp
members.  We mark the qp as sig_enable and we increase the effective
SQ size, but still limit the user max_send_wr to original size
computed.  We also allow the create_qp routine to accept sig_enable
create flag.

Signed-off-by: default avatarSagi Grimberg <sagig@mellanox.com>
Signed-off-by: default avatarRoland Dreier <roland@purestorage.com>
parent 3121e3c4

drivers/infiniband/hw/mlx5/mlx5_ib.h

+3 −0
Original line number Diff line number Diff line
@@ -189,6 +189,9 @@ struct mlx5_ib_qp { 


	int			create_type;

	u32			pa_lkey;



	/* Store signature errors */

	bool			signature_en;

};



struct mlx5_ib_cq_buf {

drivers/infiniband/hw/mlx5/qp.c

+9 −3
Original line number Diff line number Diff line
@@ -256,7 +256,10 @@ static int calc_send_wqe(struct ib_qp_init_attr *attr) 
	}



	size += attr->cap.max_send_sge * sizeof(struct mlx5_wqe_data_seg);



	if (attr->create_flags & IB_QP_CREATE_SIGNATURE_EN &&

	    ALIGN(max_t(int, inl_size, size), MLX5_SEND_WQE_BB) < MLX5_SIG_WQE_SIZE)

			return MLX5_SIG_WQE_SIZE;

	else

		return ALIGN(max_t(int, inl_size, size), MLX5_SEND_WQE_BB);

}
@@ -284,6 +287,9 @@ static int calc_sq_size(struct mlx5_ib_dev *dev, struct ib_qp_init_attr *attr, 
		sizeof(struct mlx5_wqe_inline_seg);

	attr->cap.max_inline_data = qp->max_inline_data;



	if (attr->create_flags & IB_QP_CREATE_SIGNATURE_EN)

		qp->signature_en = true;



	wq_size = roundup_pow_of_two(attr->cap.max_send_wr * wqe_size);

	qp->sq.wqe_cnt = wq_size / MLX5_SEND_WQE_BB;

	if (qp->sq.wqe_cnt > dev->mdev.caps.max_wqes) {
@@ -665,7 +671,7 @@ static int create_kernel_qp(struct mlx5_ib_dev *dev, 
	int err;



	uuari = &dev->mdev.priv.uuari;

	if (init_attr->create_flags)

	if (init_attr->create_flags & ~IB_QP_CREATE_SIGNATURE_EN)

		return -EINVAL;



	if (init_attr->qp_type == MLX5_IB_QPT_REG_UMR)

include/linux/mlx5/qp.h

+1 −0
Original line number Diff line number Diff line
@@ -37,6 +37,7 @@ 
#include <linux/mlx5/driver.h>



#define MLX5_INVALID_LKEY	0x100

#define MLX5_SIG_WQE_SIZE	(MLX5_SEND_WQE_BB * 5)



enum mlx5_qp_optpar {

	MLX5_QP_OPTPAR_ALT_ADDR_PATH		= 1 << 0,