// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
/* Copyright (c) 2020 Mellanox Technologies Ltd. */
+#include <linux/iova.h>
#include <linux/mlx5/driver.h>
#include "mlx5_vdpa.h"
return err;
}
+int mlx5_vdpa_modify_rqt(struct mlx5_vdpa_dev *mvdev, void *in, int inlen, u32 rqtn)
+{
+ u32 out[MLX5_ST_SZ_DW(create_rqt_out)] = {};
+
+ MLX5_SET(modify_rqt_in, in, uid, mvdev->res.uid);
+ MLX5_SET(modify_rqt_in, in, rqtn, rqtn);
+ MLX5_SET(modify_rqt_in, in, opcode, MLX5_CMD_OP_MODIFY_RQT);
+ return mlx5_cmd_exec(mvdev->mdev, in, inlen, out, sizeof(out));
+}
+
void mlx5_vdpa_destroy_rqt(struct mlx5_vdpa_dev *mvdev, u32 rqtn)
{
u32 in[MLX5_ST_SZ_DW(destroy_rqt_in)] = {};
return mlx5_cmd_exec_in(mvdev->mdev, destroy_mkey, in);
}
+static int init_ctrl_vq(struct mlx5_vdpa_dev *mvdev)
+{
+ mvdev->cvq.iotlb = vhost_iotlb_alloc(0, 0);
+ if (!mvdev->cvq.iotlb)
+ return -ENOMEM;
+
+ vringh_set_iotlb(&mvdev->cvq.vring, mvdev->cvq.iotlb, &mvdev->cvq.iommu_lock);
+
+ return 0;
+}
+
+static void cleanup_ctrl_vq(struct mlx5_vdpa_dev *mvdev)
+{
+ vhost_iotlb_free(mvdev->cvq.iotlb);
+}
+
int mlx5_vdpa_alloc_resources(struct mlx5_vdpa_dev *mvdev)
{
u64 offset = MLX5_CAP64_DEV_VDPA_EMULATION(mvdev->mdev, doorbell_bar_offset);
err = -ENOMEM;
goto err_key;
}
+
+ err = init_ctrl_vq(mvdev);
+ if (err)
+ goto err_ctrl;
+
res->valid = true;
return 0;
+err_ctrl:
+ iounmap(res->kick_addr);
err_key:
dealloc_pd(mvdev, res->pdn, res->uid);
err_pd:
if (!res->valid)
return;
+ cleanup_ctrl_vq(mvdev);
iounmap(res->kick_addr);
res->kick_addr = NULL;
dealloc_pd(mvdev, res->pdn, res->uid);