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Mon, 8 Jul 2024 05:01:27 -0700 From: Dragos Tatulea Date: Mon, 8 Jul 2024 15:00:32 +0300 Subject: [PATCH vhost v3 08/24] vdpa/mlx5: Clear and reinitialize software VQ data on reset Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-ID: <20240708-stage-vdpa-vq-precreate-v3-8-afe3c766e393@nvidia.com> References: <20240708-stage-vdpa-vq-precreate-v3-0-afe3c766e393@nvidia.com> In-Reply-To: <20240708-stage-vdpa-vq-precreate-v3-0-afe3c766e393@nvidia.com> To: "Michael S. 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Instead of clearing just a few fields at reset, fully clear the struct and initialize with the appropriate default values. As clear_vqs_ready() is used only during reset, get rid of it. Reviewed-by: Cosmin Ratiu Acked-by: Eugenio P=C3=A9rez Signed-off-by: Dragos Tatulea --- drivers/vdpa/mlx5/net/mlx5_vnet.c | 16 +++------------- 1 file changed, 3 insertions(+), 13 deletions(-) diff --git a/drivers/vdpa/mlx5/net/mlx5_vnet.c b/drivers/vdpa/mlx5/net/mlx5= _vnet.c index c8b5c87f001d..de013b5a2815 100644 --- a/drivers/vdpa/mlx5/net/mlx5_vnet.c +++ b/drivers/vdpa/mlx5/net/mlx5_vnet.c @@ -2941,18 +2941,6 @@ static void teardown_vq_resources(struct mlx5_vdpa_n= et *ndev) ndev->setup =3D false; } =20 -static void clear_vqs_ready(struct mlx5_vdpa_net *ndev) -{ - int i; - - for (i =3D 0; i < ndev->mvdev.max_vqs; i++) { - ndev->vqs[i].ready =3D false; - ndev->vqs[i].modified_fields =3D 0; - } - - ndev->mvdev.cvq.ready =3D false; -} - static int setup_cvq_vring(struct mlx5_vdpa_dev *mvdev) { struct mlx5_control_vq *cvq =3D &mvdev->cvq; @@ -3035,12 +3023,14 @@ static int mlx5_vdpa_compat_reset(struct vdpa_devic= e *vdev, u32 flags) down_write(&ndev->reslock); unregister_link_notifier(ndev); teardown_vq_resources(ndev); - clear_vqs_ready(ndev); + init_mvqs(ndev); + if (flags & VDPA_RESET_F_CLEAN_MAP) mlx5_vdpa_destroy_mr_resources(&ndev->mvdev); ndev->mvdev.status =3D 0; ndev->mvdev.suspended =3D false; ndev->cur_num_vqs =3D MLX5V_DEFAULT_VQ_COUNT; + ndev->mvdev.cvq.ready =3D false; ndev->mvdev.cvq.received_desc =3D 0; ndev->mvdev.cvq.completed_desc =3D 0; memset(ndev->event_cbs, 0, sizeof(*ndev->event_cbs) * (mvdev->max_vqs + 1= )); --=20 2.45.2