From: Leon Romanovsky <leonro@mellanox.com>
Date: Mon, 27 Apr 2020 18:46:12 +0300
Subject: RDMA/mlx5: Initial separation of RAW_PACKET QP from common flow
Patch-mainline: v5.8-rc1
Git-commit: 5d0dc3d96c7b3bc6bc175754abcb132a1c94d02b
References: jsc#SLE-15175

Create initial function for IB_QPT_RAW_PACKET flow.

Link: https://lore.kernel.org/r/20200427154636.381474-13-leon@kernel.org
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/infiniband/hw/mlx5/qp.c |   22 +++++++++++++++++-----
 1 file changed, 17 insertions(+), 5 deletions(-)

--- a/drivers/infiniband/hw/mlx5/qp.c
+++ b/drivers/infiniband/hw/mlx5/qp.c
@@ -1634,13 +1634,13 @@ static void destroy_rss_raw_qp_tir(struc
 			     to_mpd(qp->ibqp.pd)->uid);
 }
 
-static int create_rss_raw_qp_tir(struct mlx5_ib_dev *dev, struct mlx5_ib_qp *qp,
-				 struct ib_pd *pd,
+static int create_rss_raw_qp_tir(struct ib_pd *pd, struct mlx5_ib_qp *qp,
 				 struct ib_qp_init_attr *init_attr,
 				 struct ib_udata *udata)
 {
 	struct mlx5_ib_ucontext *mucontext = rdma_udata_to_drv_context(
 		udata, struct mlx5_ib_ucontext, ibucontext);
+	struct mlx5_ib_dev *dev = to_mdev(pd->device);
 	struct mlx5_ib_create_qp_resp resp = {};
 	int inlen;
 	int outlen;
@@ -1996,9 +1996,6 @@ static int create_qp_common(struct mlx5_
 	if (mlx5_st < 0)
 		return -EINVAL;
 
-	if (init_attr->rwq_ind_tbl)
-		return create_rss_raw_qp_tir(dev, qp, pd, init_attr, udata);
-
 	if (init_attr->create_flags & IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK) {
 		if (!MLX5_CAP_GEN(mdev, block_lb_mc)) {
 			mlx5_ib_dbg(dev, "block multicast loopback isn't supported\n");
@@ -2712,6 +2709,18 @@ static size_t process_udata_size(struct
 	return ucmd;
 }
 
+static int create_raw_qp(struct ib_pd *pd, struct mlx5_ib_qp *qp,
+			 struct ib_qp_init_attr *attr,
+			 struct mlx5_ib_create_qp *ucmd, struct ib_udata *udata)
+{
+	struct mlx5_ib_dev *dev = to_mdev(pd->device);
+
+	if (attr->rwq_ind_tbl)
+		return create_rss_raw_qp_tir(pd, qp, attr, udata);
+
+	return create_qp_common(dev, pd, attr, ucmd, udata, qp);
+}
+
 struct ib_qp *mlx5_ib_create_qp(struct ib_pd *pd,
 				struct ib_qp_init_attr *init_attr,
 				struct ib_udata *udata)
@@ -2768,6 +2777,9 @@ struct ib_qp *mlx5_ib_create_qp(struct i
 	case IB_QPT_DRIVER:
 		err = create_driver_qp(pd, qp, init_attr, &ucmd, udata);
 		break;
+	case IB_QPT_RAW_PACKET:
+		err = create_raw_qp(pd, qp, init_attr, &ucmd, udata);
+		break;
 	default:
 		err = create_qp_common(dev, pd, init_attr,
 				       (udata) ? &ucmd : NULL, udata, qp);