From: Xuan Zhuo <xuanzhuo@linux.alibaba.com> To: netdev@vger.kernel.org Cc: "David S. Miller" <davem@davemloft.net>, "Eric Dumazet" <edumazet@google.com>, "Jakub Kicinski" <kuba@kernel.org>, "Paolo Abeni" <pabeni@redhat.com>, "Michael S. Tsirkin" <mst@redhat.com>, "Jason Wang" <jasowang@redhat.com>, "Björn Töpel" <bjorn@kernel.org>, "Magnus Karlsson" <magnus.karlsson@intel.com>, "Maciej Fijalkowski" <maciej.fijalkowski@intel.com>, "Jonathan Lemon" <jonathan.lemon@gmail.com>, "Alexei Starovoitov" <ast@kernel.org>, "Daniel Borkmann" <daniel@iogearbox.net>, "Jesper Dangaard Brouer" <hawk@kernel.org>, "John Fastabend" <john.fastabend@gmail.com>, "Sebastian Andrzej Siewior" <bigeasy@linutronix.de>, "Menglong Dong" <imagedong@tencent.com>, "Kuniyuki Iwashima" <kuniyu@amazon.com>, "Petr Machata" <petrm@nvidia.com>, virtualization@lists.linux-foundation.org, bpf@vger.kernel.org Subject: [PATCH 05/33] virtio_ring: introduce virtqueue_add_inbuf_premapped() Date: Thu, 2 Feb 2023 19:00:30 +0800 [thread overview] Message-ID: <20230202110058.130695-6-xuanzhuo@linux.alibaba.com> (raw) In-Reply-To: <20230202110058.130695-1-xuanzhuo@linux.alibaba.com> Introduce virtqueue_add_inbuf_premapped() to submit premapped sgs. Signed-off-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com> --- drivers/virtio/virtio_ring.c | 25 +++++++++++++++++++++++++ include/linux/virtio.h | 5 +++++ 2 files changed, 30 insertions(+) diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c index 6bfa5193b0d8..e32046fd15a5 100644 --- a/drivers/virtio/virtio_ring.c +++ b/drivers/virtio/virtio_ring.c @@ -2284,6 +2284,31 @@ int virtqueue_add_inbuf_ctx(struct virtqueue *vq, } EXPORT_SYMBOL_GPL(virtqueue_add_inbuf_ctx); +/** + * virtqueue_add_inbuf_premapped - expose input buffers to other end + * @vq: the struct virtqueue we're talking about. + * @sg: scatterlist (must be well-formed and terminated!) + * @num: the number of entries in @sg writable by other side + * @data: the token identifying the buffer. + * @gfp: how to do memory allocations (if necessary). + * + * Caller must ensure we don't call this with other virtqueue operations + * at the same time (except where noted). + * + * It is required that all addrs have completed DMA operations. And use + * sg->dma_address, sg->length to pass addr and length. + * + * Returns zero or a negative error (ie. ENOSPC, ENOMEM, EIO). + */ +int virtqueue_add_inbuf_premapped(struct virtqueue *vq, + struct scatterlist *sg, unsigned int num, + void *data, + gfp_t gfp) +{ + return virtqueue_add(vq, &sg, num, 0, 1, data, NULL, true, gfp); +} +EXPORT_SYMBOL_GPL(virtqueue_add_inbuf_premapped); + /** * virtqueue_kick_prepare - first half of split virtqueue_kick call. * @_vq: the struct virtqueue diff --git a/include/linux/virtio.h b/include/linux/virtio.h index d8b472a7dcae..3ebb346ebb7c 100644 --- a/include/linux/virtio.h +++ b/include/linux/virtio.h @@ -59,6 +59,11 @@ int virtqueue_add_inbuf_ctx(struct virtqueue *vq, void *ctx, gfp_t gfp); +int virtqueue_add_inbuf_premapped(struct virtqueue *vq, + struct scatterlist *sg, unsigned int num, + void *data, + gfp_t gfp); + int virtqueue_add_sgs(struct virtqueue *vq, struct scatterlist *sgs[], unsigned int out_sgs, -- 2.32.0.3.g01195cf9f
WARNING: multiple messages have this Message-ID (diff)
From: Xuan Zhuo <xuanzhuo@linux.alibaba.com> To: netdev@vger.kernel.org Cc: "Petr Machata" <petrm@nvidia.com>, "Menglong Dong" <imagedong@tencent.com>, "Maciej Fijalkowski" <maciej.fijalkowski@intel.com>, "Jesper Dangaard Brouer" <hawk@kernel.org>, "Daniel Borkmann" <daniel@iogearbox.net>, "Michael S. Tsirkin" <mst@redhat.com>, "John Fastabend" <john.fastabend@gmail.com>, "Björn Töpel" <bjorn@kernel.org>, "Alexei Starovoitov" <ast@kernel.org>, "Eric Dumazet" <edumazet@google.com>, "Kuniyuki Iwashima" <kuniyu@amazon.com>, "Sebastian Andrzej Siewior" <bigeasy@linutronix.de>, "Jonathan Lemon" <jonathan.lemon@gmail.com>, "Jakub Kicinski" <kuba@kernel.org>, bpf@vger.kernel.org, "Paolo Abeni" <pabeni@redhat.com>, virtualization@lists.linux-foundation.org, "David S. Miller" <davem@davemloft.net>, "Magnus Karlsson" <magnus.karlsson@intel.com> Subject: [PATCH 05/33] virtio_ring: introduce virtqueue_add_inbuf_premapped() Date: Thu, 2 Feb 2023 19:00:30 +0800 [thread overview] Message-ID: <20230202110058.130695-6-xuanzhuo@linux.alibaba.com> (raw) In-Reply-To: <20230202110058.130695-1-xuanzhuo@linux.alibaba.com> Introduce virtqueue_add_inbuf_premapped() to submit premapped sgs. Signed-off-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com> --- drivers/virtio/virtio_ring.c | 25 +++++++++++++++++++++++++ include/linux/virtio.h | 5 +++++ 2 files changed, 30 insertions(+) diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c index 6bfa5193b0d8..e32046fd15a5 100644 --- a/drivers/virtio/virtio_ring.c +++ b/drivers/virtio/virtio_ring.c @@ -2284,6 +2284,31 @@ int virtqueue_add_inbuf_ctx(struct virtqueue *vq, } EXPORT_SYMBOL_GPL(virtqueue_add_inbuf_ctx); +/** + * virtqueue_add_inbuf_premapped - expose input buffers to other end + * @vq: the struct virtqueue we're talking about. + * @sg: scatterlist (must be well-formed and terminated!) + * @num: the number of entries in @sg writable by other side + * @data: the token identifying the buffer. + * @gfp: how to do memory allocations (if necessary). + * + * Caller must ensure we don't call this with other virtqueue operations + * at the same time (except where noted). + * + * It is required that all addrs have completed DMA operations. And use + * sg->dma_address, sg->length to pass addr and length. + * + * Returns zero or a negative error (ie. ENOSPC, ENOMEM, EIO). + */ +int virtqueue_add_inbuf_premapped(struct virtqueue *vq, + struct scatterlist *sg, unsigned int num, + void *data, + gfp_t gfp) +{ + return virtqueue_add(vq, &sg, num, 0, 1, data, NULL, true, gfp); +} +EXPORT_SYMBOL_GPL(virtqueue_add_inbuf_premapped); + /** * virtqueue_kick_prepare - first half of split virtqueue_kick call. * @_vq: the struct virtqueue diff --git a/include/linux/virtio.h b/include/linux/virtio.h index d8b472a7dcae..3ebb346ebb7c 100644 --- a/include/linux/virtio.h +++ b/include/linux/virtio.h @@ -59,6 +59,11 @@ int virtqueue_add_inbuf_ctx(struct virtqueue *vq, void *ctx, gfp_t gfp); +int virtqueue_add_inbuf_premapped(struct virtqueue *vq, + struct scatterlist *sg, unsigned int num, + void *data, + gfp_t gfp); + int virtqueue_add_sgs(struct virtqueue *vq, struct scatterlist *sgs[], unsigned int out_sgs, -- 2.32.0.3.g01195cf9f _______________________________________________ Virtualization mailing list Virtualization@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/virtualization
next prev parent reply other threads:[~2023-02-02 11:01 UTC|newest] Thread overview: 155+ messages / expand[flat|nested] mbox.gz Atom feed top 2023-02-02 11:00 [PATCH 00/33] virtio-net: support AF_XDP zero copy Xuan Zhuo 2023-02-02 11:00 ` Xuan Zhuo 2023-02-02 11:00 ` [PATCH 01/33] virtio_ring: virtqueue_add() support premapped Xuan Zhuo 2023-02-02 11:00 ` Xuan Zhuo 2023-02-02 11:00 ` [PATCH 02/33] virtio_ring: split: virtqueue_add_split() " Xuan Zhuo 2023-02-02 11:00 ` Xuan Zhuo 2023-02-02 11:00 ` [PATCH 03/33] virtio_ring: packed: virtqueue_add_packed() " Xuan Zhuo 2023-02-02 11:00 ` Xuan Zhuo 2023-02-03 9:16 ` Michael S. Tsirkin 2023-02-03 9:16 ` Michael S. Tsirkin 2023-02-02 11:00 ` [PATCH 04/33] virtio_ring: introduce virtqueue_add_outbuf_premapped() Xuan Zhuo 2023-02-02 11:00 ` Xuan Zhuo 2023-02-02 11:00 ` Xuan Zhuo [this message] 2023-02-02 11:00 ` [PATCH 05/33] virtio_ring: introduce virtqueue_add_inbuf_premapped() Xuan Zhuo 2023-02-02 11:00 ` [PATCH 06/33] virtio_ring: introduce virtqueue_reset() Xuan Zhuo 2023-02-02 11:00 ` Xuan Zhuo 2023-02-03 9:05 ` Michael S. Tsirkin 2023-02-03 9:05 ` Michael S. Tsirkin 2023-02-03 9:09 ` Xuan Zhuo 2023-02-03 9:09 ` Xuan Zhuo 2023-02-13 12:15 ` Michael S. Tsirkin 2023-02-13 12:15 ` Michael S. Tsirkin 2023-02-14 1:53 ` Xuan Zhuo 2023-02-14 1:53 ` Xuan Zhuo 2023-02-02 11:00 ` [PATCH 07/33] virtio_ring: add api virtio_dma_map() for advance dma Xuan Zhuo 2023-02-02 11:00 ` Xuan Zhuo 2023-02-03 9:07 ` Michael S. Tsirkin 2023-02-03 9:07 ` Michael S. Tsirkin 2023-02-02 11:00 ` [PATCH 08/33] virtio_ring: introduce dma sync api for virtio Xuan Zhuo 2023-02-02 11:00 ` Xuan Zhuo 2023-02-02 12:44 ` Magnus Karlsson 2023-02-03 9:24 ` Michael S. Tsirkin 2023-02-03 9:24 ` Michael S. Tsirkin 2023-02-02 11:00 ` [PATCH 09/33] xsk: xsk_buff_pool add callback for dma_sync Xuan Zhuo 2023-02-02 11:00 ` Xuan Zhuo 2023-02-02 12:51 ` Magnus Karlsson 2023-02-03 7:01 ` Xuan Zhuo 2023-02-03 7:01 ` Xuan Zhuo 2023-02-02 11:00 ` [PATCH 10/33] xsk: support virtio DMA map Xuan Zhuo 2023-02-02 11:00 ` Xuan Zhuo 2023-02-05 22:04 ` kernel test robot 2023-02-05 22:04 ` kernel test robot 2023-02-02 11:00 ` [PATCH 11/33] virtio_net: rename free_old_xmit_skbs to free_old_xmit Xuan Zhuo 2023-02-02 11:00 ` Xuan Zhuo 2023-02-02 11:00 ` [PATCH 12/33] virtio_net: unify the code for recycling the xmit ptr Xuan Zhuo 2023-02-02 11:00 ` Xuan Zhuo 2023-02-02 11:00 ` [PATCH 13/33] virtio_net: virtnet_poll_tx support rescheduled Xuan Zhuo 2023-02-02 11:00 ` Xuan Zhuo 2023-02-02 11:00 ` [PATCH 14/33] virtio_net: independent directory Xuan Zhuo 2023-02-02 11:00 ` Xuan Zhuo 2023-02-02 11:00 ` [PATCH 15/33] virtio_net: move to virtio_net.h Xuan Zhuo 2023-02-02 11:00 ` Xuan Zhuo 2023-02-03 8:53 ` Michael S. Tsirkin 2023-02-03 8:53 ` Michael S. Tsirkin 2023-02-03 9:04 ` Xuan Zhuo 2023-02-03 9:04 ` Xuan Zhuo 2023-02-03 9:26 ` Michael S. Tsirkin 2023-02-03 9:26 ` Michael S. Tsirkin 2023-02-02 11:00 ` [PATCH 16/33] virtio_net: introduce virtnet_xdp_handler() to seprate the logic of run xdp Xuan Zhuo 2023-02-02 11:00 ` Xuan Zhuo 2023-02-03 8:55 ` Michael S. Tsirkin 2023-02-03 8:55 ` Michael S. Tsirkin 2023-02-03 9:01 ` Xuan Zhuo 2023-02-03 9:01 ` Xuan Zhuo 2023-02-02 11:00 ` [PATCH 17/33] virtio_net: receive_small() use virtnet_xdp_handler() Xuan Zhuo 2023-02-02 11:00 ` Xuan Zhuo 2023-02-02 11:00 ` [PATCH 18/33] virtio_net: receive_merageable() " Xuan Zhuo 2023-02-02 11:00 ` Xuan Zhuo 2023-02-02 17:16 ` Michael S. Tsirkin 2023-02-02 17:16 ` Michael S. Tsirkin 2023-02-02 11:00 ` [PATCH 19/33] virtio_net: introduce virtnet_tx_reset() Xuan Zhuo 2023-02-02 11:00 ` Xuan Zhuo 2023-02-02 17:23 ` Michael S. Tsirkin 2023-02-02 17:23 ` Michael S. Tsirkin 2023-02-03 4:35 ` Xuan Zhuo 2023-02-03 4:35 ` Xuan Zhuo 2023-02-02 11:00 ` [PATCH 20/33] virtio_net: xsk: introduce virtnet_rq_bind_xsk_pool() Xuan Zhuo 2023-02-02 11:00 ` Xuan Zhuo 2023-02-03 8:48 ` Michael S. Tsirkin 2023-02-03 8:48 ` Michael S. Tsirkin 2023-02-03 8:52 ` Xuan Zhuo 2023-02-03 8:52 ` Xuan Zhuo 2023-02-03 9:28 ` Michael S. Tsirkin 2023-02-03 9:28 ` Michael S. Tsirkin 2023-02-02 11:00 ` [PATCH 21/33] virtio_net: xsk: introduce virtnet_xsk_pool_enable() Xuan Zhuo 2023-02-02 11:00 ` Xuan Zhuo 2023-02-02 11:00 ` [PATCH 22/33] virtio_net: xsk: introduce xsk disable Xuan Zhuo 2023-02-02 11:00 ` Xuan Zhuo 2023-02-02 23:02 ` kernel test robot 2023-02-02 23:02 ` kernel test robot 2023-02-12 7:56 ` kernel test robot 2023-02-12 7:56 ` kernel test robot 2023-02-02 11:00 ` [PATCH 23/33] virtio_net: xsk: support xsk setup Xuan Zhuo 2023-02-02 11:00 ` Xuan Zhuo 2023-02-02 11:00 ` [PATCH 24/33] virtio_net: xsk: stop disable tx napi Xuan Zhuo 2023-02-02 11:00 ` Xuan Zhuo 2023-02-02 17:25 ` Michael S. Tsirkin 2023-02-02 17:25 ` Michael S. Tsirkin 2023-02-03 3:24 ` Xuan Zhuo 2023-02-03 3:24 ` Xuan Zhuo 2023-02-03 8:33 ` Michael S. Tsirkin 2023-02-03 8:33 ` Michael S. Tsirkin 2023-02-03 8:49 ` Xuan Zhuo 2023-02-03 8:49 ` Xuan Zhuo 2023-02-03 9:29 ` Michael S. Tsirkin 2023-02-03 9:29 ` Michael S. Tsirkin 2023-02-02 11:00 ` [PATCH 25/33] virtio_net: xsk: __free_old_xmit distinguishes xsk buffer Xuan Zhuo 2023-02-02 11:00 ` Xuan Zhuo 2023-02-02 11:00 ` [PATCH 26/33] virtio_net: virtnet_sq_free_unused_buf() check " Xuan Zhuo 2023-02-02 11:00 ` Xuan Zhuo 2023-02-02 11:00 ` [PATCH 27/33] virtio_net: virtnet_rq_free_unused_buf() " Xuan Zhuo 2023-02-02 11:00 ` Xuan Zhuo 2023-02-02 11:00 ` [PATCH 28/33] net: introduce napi_tx_raise() Xuan Zhuo 2023-02-02 11:00 ` Xuan Zhuo 2023-02-02 11:00 ` [PATCH 29/33] virtio_net: xsk: tx: support tx Xuan Zhuo 2023-02-02 11:00 ` Xuan Zhuo 2023-02-03 8:39 ` Maciej Fijalkowski 2023-02-03 8:55 ` Xuan Zhuo 2023-02-03 8:55 ` Xuan Zhuo 2023-02-02 11:00 ` [PATCH 30/33] virtio_net: xsk: tx: support wakeup Xuan Zhuo 2023-02-02 11:00 ` Xuan Zhuo 2023-02-02 11:00 ` [PATCH 31/33] virtio_net: xsk: tx: auto wakeup when free old xmit Xuan Zhuo 2023-02-02 11:00 ` Xuan Zhuo 2023-02-02 11:00 ` [PATCH 32/33] virtio_net: xsk: rx: introduce add_recvbuf_xsk() Xuan Zhuo 2023-02-02 11:00 ` Xuan Zhuo 2023-02-03 8:43 ` Maciej Fijalkowski 2023-02-03 8:56 ` Xuan Zhuo 2023-02-03 8:56 ` Xuan Zhuo 2023-02-02 11:00 ` [PATCH 33/33] virtio_net: xsk: rx: introduce receive_xsk() to recv xsk buffer Xuan Zhuo 2023-02-02 11:00 ` Xuan Zhuo 2023-02-02 11:08 ` [PATCH 00/33] virtio-net: support AF_XDP zero copy Xuan Zhuo 2023-02-02 11:08 ` Michael S. Tsirkin 2023-02-02 11:08 ` Michael S. Tsirkin 2023-02-02 11:11 ` Xuan Zhuo 2023-02-02 11:44 ` Xuan Zhuo 2023-02-02 11:44 ` Xuan Zhuo 2023-02-03 9:08 ` Michael S. Tsirkin 2023-02-03 9:08 ` Michael S. Tsirkin 2023-02-03 9:09 ` Xuan Zhuo 2023-02-03 9:09 ` Xuan Zhuo 2023-02-02 14:41 ` Paolo Abeni 2023-02-02 14:41 ` Paolo Abeni 2023-02-03 3:33 ` Xuan Zhuo 2023-02-03 3:33 ` Xuan Zhuo 2023-02-03 8:37 ` Michael S. Tsirkin 2023-02-03 8:37 ` Michael S. Tsirkin 2023-02-03 8:46 ` Maciej Fijalkowski 2023-02-03 9:09 ` Michael S. Tsirkin 2023-02-03 9:09 ` Michael S. Tsirkin 2023-02-03 9:17 ` Michael S. Tsirkin 2023-02-03 9:17 ` Michael S. Tsirkin 2023-02-06 2:41 ` Xuan Zhuo 2023-02-06 2:41 ` Xuan Zhuo 2023-02-13 12:14 ` Michael S. Tsirkin 2023-02-13 12:14 ` Michael S. Tsirkin
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