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Commit 185eddc4 authored by Max Gurtovoy's avatar Max Gurtovoy Committed by Jason Gunthorpe
Browse files

RDMA/core: Validate integrity handover device cap 



Protect the case that a ULP tries to allocate a QP with signature
enabled flag while the LLD doesn't support this feature.
While we're here, also move integrity_en attribute from mlx5_qp to
ib_qp as a preparation for adding new integrity API to the rw-API
(that is part of ib_core module).

Signed-off-by: default avatarMax Gurtovoy <maxg@mellanox.com>
Signed-off-by: default avatarIsrael Rukshin <israelr@mellanox.com>
Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
Signed-off-by: default avatarJason Gunthorpe <jgg@mellanox.com>
parent c0a6cbb9

drivers/infiniband/core/verbs.c

+6 −0
Original line number Diff line number Diff line
@@ -1158,6 +1158,10 @@ struct ib_qp *ib_create_qp_user(struct ib_pd *pd, 
	    qp_init_attr->cap.max_recv_sge))

		return ERR_PTR(-EINVAL);



	if ((qp_init_attr->create_flags & IB_QP_CREATE_INTEGRITY_EN) &&

	    !(device->attrs.device_cap_flags & IB_DEVICE_INTEGRITY_HANDOVER))

		return ERR_PTR(-EINVAL);



	/*

	 * If the callers is using the RDMA API calculate the resources

	 * needed for the RDMA READ/WRITE operations.
@@ -1233,6 +1237,8 @@ struct ib_qp *ib_create_qp_user(struct ib_pd *pd, 
	qp->max_write_sge = qp_init_attr->cap.max_send_sge;

	qp->max_read_sge = min_t(u32, qp_init_attr->cap.max_send_sge,

				 device->attrs.max_sge_rd);

	if (qp_init_attr->create_flags & IB_QP_CREATE_INTEGRITY_EN)

		qp->integrity_en = true;



	return qp;

drivers/infiniband/hw/mlx5/mlx5_ib.h

+0 −2
Original line number Diff line number Diff line
@@ -431,8 +431,6 @@ struct mlx5_ib_qp { 


	int			create_type;



	bool			integrity_en;



	struct list_head	qps_list;

	struct list_head	cq_recv_list;

	struct list_head	cq_send_list;

drivers/infiniband/hw/mlx5/qp.c

+2 −5
Original line number Diff line number Diff line
@@ -496,9 +496,6 @@ 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_INTEGRITY_EN)

		qp->integrity_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 > (1 << MLX5_CAP_GEN(dev->mdev, log_max_qp_sz))) {
@@ -4714,7 +4711,7 @@ static int set_pi_umr_wr(const struct ib_send_wr *send_wr, 


	if (unlikely(send_wr->num_sge != 0) ||

	    unlikely(wr->access & IB_ACCESS_REMOTE_ATOMIC) ||

	    unlikely(!sig_mr->sig) || unlikely(!qp->integrity_en) ||

	    unlikely(!sig_mr->sig) || unlikely(!qp->ibqp.integrity_en) ||

	    unlikely(!sig_mr->sig->sig_status_checked))

		return -EINVAL;
@@ -4763,7 +4760,7 @@ static int set_sig_umr_wr(const struct ib_send_wr *send_wr, 


	if (unlikely(wr->wr.num_sge != 1) ||

	    unlikely(wr->access_flags & IB_ACCESS_REMOTE_ATOMIC) ||

	    unlikely(!sig_mr->sig) || unlikely(!qp->integrity_en) ||

	    unlikely(!sig_mr->sig) || unlikely(!qp->ibqp.integrity_en) ||

	    unlikely(!sig_mr->sig->sig_status_checked))

		return -EINVAL;

include/rdma/ib_verbs.h

+1 −0
Original line number Diff line number Diff line
@@ -1711,6 +1711,7 @@ struct ib_qp { 
	struct ib_qp_security  *qp_sec;

	u8			port;



	bool			integrity_en;

	/*

	 * Implementation details of the RDMA core, don't use in drivers:

	 */