Commit 66d86e52 authored by Weihang Li's avatar Weihang Li Committed by Jason Gunthorpe
Browse files

RDMA/hns: Add UD support for HIP09 

HIP09 supports service type of Unreliable Datagram, add necessary process
to enable this feature.

Link: https://lore.kernel.org/r/1605526408-6936-7-git-send-email-liweihang@huawei.com


Signed-off-by: default avatarWeihang Li <liweihang@huawei.com>
Signed-off-by: default avatarJason Gunthorpe <jgg@nvidia.com>
parent 534c9bdb

drivers/infiniband/hw/hns/hns_roce_ah.c

+3 −0
Original line number Diff line number Diff line
@@ -64,6 +64,9 @@ int hns_roce_create_ah(struct ib_ah *ibah, struct rdma_ah_init_attr *init_attr, 
	struct hns_roce_ah *ah = to_hr_ah(ibah);

	int ret = 0;



	if (hr_dev->pci_dev->revision <= PCI_REVISION_ID_HIP08 && udata)

		return -EOPNOTSUPP;



	ah->av.port = rdma_ah_get_port_num(ah_attr);

	ah->av.gid_index = grh->sgid_index;

drivers/infiniband/hw/hns/hns_roce_hw_v2.c

+4 −2
Original line number Diff line number Diff line
@@ -693,7 +693,7 @@ static int hns_roce_v2_post_send(struct ib_qp *ibqp, 
		       ~(((qp->sq.head + nreq) >> ilog2(qp->sq.wqe_cnt)) & 0x1);



		/* Corresponding to the QP type, wqe process separately */

		if (ibqp->qp_type == IB_QPT_GSI)

		if (ibqp->qp_type == IB_QPT_GSI || ibqp->qp_type == IB_QPT_UD)

			ret = set_ud_wqe(qp, wr, wqe, &sge_idx, owner_bit);

		else if (ibqp->qp_type == IB_QPT_RC)

			ret = set_rc_wqe(qp, wr, wqe, &sge_idx, owner_bit);
@@ -5151,7 +5151,9 @@ static int hns_roce_v2_destroy_qp_common(struct hns_roce_dev *hr_dev, 
	unsigned long flags;

	int ret = 0;



	if (hr_qp->ibqp.qp_type == IB_QPT_RC && hr_qp->state != IB_QPS_RESET) {

	if ((hr_qp->ibqp.qp_type == IB_QPT_RC ||

	     hr_qp->ibqp.qp_type == IB_QPT_UD) &&

	   hr_qp->state != IB_QPS_RESET) {

		/* Modify qp to reset before destroying qp */

		ret = hns_roce_v2_modify_qp(&hr_qp->ibqp, NULL, 0,

					    hr_qp->state, IB_QPS_RESET);

drivers/infiniband/hw/hns/hns_roce_main.c

+1 −0
Original line number Diff line number Diff line
@@ -424,6 +424,7 @@ static const struct ib_device_ops hns_roce_dev_ops = { 
	.alloc_pd = hns_roce_alloc_pd,

	.alloc_ucontext = hns_roce_alloc_ucontext,

	.create_ah = hns_roce_create_ah,

	.create_user_ah = hns_roce_create_ah,

	.create_cq = hns_roce_create_cq,

	.create_qp = hns_roce_create_qp,

	.dealloc_pd = hns_roce_dealloc_pd,

drivers/infiniband/hw/hns/hns_roce_qp.c

+29 −10
Original line number Diff line number Diff line
@@ -998,6 +998,30 @@ void hns_roce_qp_destroy(struct hns_roce_dev *hr_dev, struct hns_roce_qp *hr_qp, 
	kfree(hr_qp);

}



static int check_qp_type(struct hns_roce_dev *hr_dev, enum ib_qp_type type,

			 bool is_user)

{

	switch (type) {

	case IB_QPT_UD:

		if (hr_dev->pci_dev->revision <= PCI_REVISION_ID_HIP08 &&

		    is_user)

			goto out;

		fallthrough;

	case IB_QPT_RC:

	case IB_QPT_GSI:

		break;

	default:

		goto out;

	}



	return 0;



out:

	ibdev_err(&hr_dev->ib_dev, "not support QP type %d\n", type);



	return -EOPNOTSUPP;

}



struct ib_qp *hns_roce_create_qp(struct ib_pd *pd,

				 struct ib_qp_init_attr *init_attr,

				 struct ib_udata *udata)
@@ -1007,15 +1031,9 @@ struct ib_qp *hns_roce_create_qp(struct ib_pd *pd, 
	struct hns_roce_qp *hr_qp;

	int ret;



	switch (init_attr->qp_type) {

	case IB_QPT_RC:

	case IB_QPT_GSI:

		break;

	default:

		ibdev_err(ibdev, "not support QP type %d\n",

			  init_attr->qp_type);

		return ERR_PTR(-EOPNOTSUPP);

	}

	ret = check_qp_type(hr_dev, init_attr->qp_type, !!udata);

	if (ret)

		return ERR_PTR(ret);



	hr_qp = kzalloc(sizeof(*hr_qp), GFP_KERNEL);

	if (!hr_qp)
@@ -1030,10 +1048,11 @@ struct ib_qp *hns_roce_create_qp(struct ib_pd *pd, 
	if (ret) {

		ibdev_err(ibdev, "Create QP type 0x%x failed(%d)\n",

			  init_attr->qp_type, ret);

		ibdev_err(ibdev, "Create GSI QP failed!\n");



		kfree(hr_qp);

		return ERR_PTR(ret);

	}



	return &hr_qp->ibqp;

}