> -----Original Message-----
> From: Maxime Coquelin <maxime.coque...@redhat.com>
> Sent: Wednesday, November 30, 2022 11:56 PM
> To: dev@dpdk.org; Xia, Chenbo <chenbo....@intel.com>;
> david.march...@redhat.com; epere...@redhat.com
> Cc: Maxime Coquelin <maxime.coque...@redhat.com>
> Subject: [PATCH v1 08/21] net/virtio: move vring memzone to virtqueue
> struct
>
> Whatever its type (Rx, Tx or Ctl), all the virtqueue
> require a memzone for the vrings. This patch moves its
> pointer to the virtqueue struct, simplifying the code.
>
> Signed-off-by: Maxime Coquelin <maxime.coque...@redhat.com>
> ---
> drivers/net/virtio/virtio_cvq.h | 1 -
> drivers/net/virtio/virtio_ethdev.c | 11 ++---------
> drivers/net/virtio/virtio_rxtx.h | 4 ----
> drivers/net/virtio/virtqueue.c | 6 ++----
> drivers/net/virtio/virtqueue.h | 1 +
> 5 files changed, 5 insertions(+), 18 deletions(-)
>
> diff --git a/drivers/net/virtio/virtio_cvq.h
> b/drivers/net/virtio/virtio_cvq.h
> index 0ff326b063..70739ae04b 100644
> --- a/drivers/net/virtio/virtio_cvq.h
> +++ b/drivers/net/virtio/virtio_cvq.h
> @@ -108,7 +108,6 @@ typedef uint8_t virtio_net_ctrl_ack;
> struct virtnet_ctl {
> const struct rte_memzone *hdr_mz; /**< memzone to populate hdr. */
> rte_iova_t hdr_mem; /**< hdr for each xmit packet */
> - const struct rte_memzone *mz; /**< mem zone to populate CTL ring.
> */
> rte_spinlock_t lock; /**< spinlock for control queue.
> */
> void (*notify_queue)(struct virtqueue *vq, void *cookie); /**<
> notify ops. */
> void *notify_cookie; /**< cookie for notify ops */
> diff --git a/drivers/net/virtio/virtio_ethdev.c
> b/drivers/net/virtio/virtio_ethdev.c
> index a581fae408..b546916a9f 100644
> --- a/drivers/net/virtio/virtio_ethdev.c
> +++ b/drivers/net/virtio/virtio_ethdev.c
> @@ -423,6 +423,7 @@ virtio_init_queue(struct rte_eth_dev *dev, uint16_t
> queue_idx)
>
> memset(mz->addr, 0, mz->len);
>
> + vq->mz = mz;
> if (hw->use_va)
> vq->vq_ring_mem = (uintptr_t)mz->addr;
> else
> @@ -462,14 +463,11 @@ virtio_init_queue(struct rte_eth_dev *dev, uint16_t
> queue_idx)
>
> vq->sw_ring = sw_ring;
> rxvq = &vq->rxq;
> - rxvq->mz = mz;
> rxvq->fake_mbuf = fake_mbuf;
> } else if (queue_type == VTNET_TQ) {
> txvq = &vq->txq;
> - txvq->mz = mz;
> } else if (queue_type == VTNET_CQ) {
> cvq = &vq->cq;
> - cvq->mz = mz;
> hw->cvq = cvq;
> vq->cq.notify_queue = &virtio_control_queue_notify;
> }
> @@ -550,15 +548,10 @@ virtio_free_queues(struct virtio_hw *hw)
> if (queue_type == VTNET_RQ) {
> rte_free(vq->rxq.fake_mbuf);
> rte_free(vq->sw_ring);
> - rte_memzone_free(vq->rxq.mz);
> - } else if (queue_type == VTNET_TQ) {
> - rte_memzone_free(vq->txq.mz);
> - } else {
> - rte_memzone_free(vq->cq.mz);
> }
>
> virtio_free_queue_headers(vq);
> -
> + rte_memzone_free(vq->mz);
> rte_free(vq);
> hw->vqs[i] = NULL;
> }
> diff --git a/drivers/net/virtio/virtio_rxtx.h
> b/drivers/net/virtio/virtio_rxtx.h
> index a5fe3ea95c..57af630110 100644
> --- a/drivers/net/virtio/virtio_rxtx.h
> +++ b/drivers/net/virtio/virtio_rxtx.h
> @@ -25,8 +25,6 @@ struct virtnet_rx {
>
> /* Statistics */
> struct virtnet_stats stats;
> -
> - const struct rte_memzone *mz; /**< mem zone to populate RX ring. */
> };
>
> struct virtnet_tx {
> @@ -34,8 +32,6 @@ struct virtnet_tx {
> rte_iova_t hdr_mem; /**< hdr for each xmit packet */
>
> struct virtnet_stats stats; /* Statistics */
> -
> - const struct rte_memzone *mz; /**< mem zone to populate TX ring.
> */
> };
>
> int virtio_rxq_vec_setup(struct virtnet_rx *rxvq);
> diff --git a/drivers/net/virtio/virtqueue.c
> b/drivers/net/virtio/virtqueue.c
> index 3b174a5923..41e3529546 100644
> --- a/drivers/net/virtio/virtqueue.c
> +++ b/drivers/net/virtio/virtqueue.c
> @@ -148,7 +148,6 @@ virtqueue_rxvq_reset_packed(struct virtqueue *vq)
> {
> int size = vq->vq_nentries;
> struct vq_desc_extra *dxp;
> - struct virtnet_rx *rxvq;
> uint16_t desc_idx;
>
> vq->vq_used_cons_idx = 0;
> @@ -162,8 +161,7 @@ virtqueue_rxvq_reset_packed(struct virtqueue *vq)
> vq->vq_packed.event_flags_shadow = 0;
> vq->vq_packed.cached_flags |= VRING_DESC_F_WRITE;
>
> - rxvq = &vq->rxq;
> - memset(rxvq->mz->addr, 0, rxvq->mz->len);
> + memset(vq->mz->addr, 0, vq->mz->len);
>
> for (desc_idx = 0; desc_idx < vq->vq_nentries; desc_idx++) {
> dxp = &vq->vq_descx[desc_idx];
> @@ -201,7 +199,7 @@ virtqueue_txvq_reset_packed(struct virtqueue *vq)
>
> txvq = &vq->txq;
> txr = txvq->hdr_mz->addr;
> - memset(txvq->mz->addr, 0, txvq->mz->len);
> + memset(vq->mz->addr, 0, vq->mz->len);
> memset(txvq->hdr_mz->addr, 0, txvq->hdr_mz->len);
>
> for (desc_idx = 0; desc_idx < vq->vq_nentries; desc_idx++) {
> diff --git a/drivers/net/virtio/virtqueue.h
> b/drivers/net/virtio/virtqueue.h
> index f5058f362c..8b7bfae643 100644
> --- a/drivers/net/virtio/virtqueue.h
> +++ b/drivers/net/virtio/virtqueue.h
> @@ -201,6 +201,7 @@ struct virtqueue {
> struct virtnet_ctl cq;
> };
>
> + const struct rte_memzone *mz; /**< mem zone to populate ring. */
> rte_iova_t vq_ring_mem; /**< physical address of vring,
> * or virtual address for virtio_user. */
>
> --
> 2.38.1
Reviewed-by: Chenbo Xia <chenbo....@intel.com>
