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Tsirkin" , Jason Wang , Akihiko Odaki Subject: [PATCH v6 04/21] net: Remove receive_raw() Date: Mon, 30 Oct 2023 14:12:25 +0900 Message-ID: <20231030051356.33123-5-akihiko.odaki@daynix.com> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231030051356.33123-1-akihiko.odaki@daynix.com> References: <20231030051356.33123-1-akihiko.odaki@daynix.com> MIME-Version: 1.0 Received-SPF: none client-ip=2607:f8b0:4864:20::632; envelope-from=akihiko.odaki@daynix.com; helo=mail-pl1-x632.google.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_NONE=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org While netmap implements virtio-net header, it does not implement receive_raw(). Instead of implementing receive_raw for netmap, add virtio-net headers in the common code and use receive_iov()/receive() instead. This also fixes the buffer size for the virtio-net header. Fixes: fbbdbddec0 ("tap: allow extended virtio header with hash info") Signed-off-by: Akihiko Odaki --- include/net/net.h | 1 - include/net/queue.h | 1 - net/net.c | 17 +++++++++-------- net/queue.c | 30 ++++++++++-------------------- net/tap.c | 1 - 5 files changed, 19 insertions(+), 31 deletions(-) diff --git a/include/net/net.h b/include/net/net.h index d98a2b136a..5bc1f82550 100644 --- a/include/net/net.h +++ b/include/net/net.h @@ -72,7 +72,6 @@ typedef struct NetClientInfo { NetClientDriver type; size_t size; NetReceive *receive; - NetReceive *receive_raw; NetReceiveIOV *receive_iov; NetCanReceive *can_receive; NetStart *start; diff --git a/include/net/queue.h b/include/net/queue.h index 9f2f289d77..7a43863be2 100644 --- a/include/net/queue.h +++ b/include/net/queue.h @@ -31,7 +31,6 @@ typedef struct NetQueue NetQueue; typedef void (NetPacketSent) (NetClientState *sender, ssize_t ret); #define QEMU_NET_PACKET_FLAG_NONE 0 -#define QEMU_NET_PACKET_FLAG_RAW (1<<0) /* Returns: * >0 - success diff --git a/net/net.c b/net/net.c index 717d48ce15..ad8ecce5d6 100644 --- a/net/net.c +++ b/net/net.c @@ -761,8 +761,13 @@ ssize_t qemu_receive_packet_iov(NetClientState *nc, const struct iovec *iov, ssize_t qemu_send_packet_raw(NetClientState *nc, const uint8_t *buf, int size) { - return qemu_send_packet_async_with_flags(nc, QEMU_NET_PACKET_FLAG_RAW, - buf, size, NULL); + struct virtio_net_hdr_v1_hash vnet_hdr = { }; + struct iovec iov[] = { + { .iov_base = &vnet_hdr, .iov_len = nc->vnet_hdr_len }, + { .iov_base = (void *)buf, .iov_len = size } + }; + + return qemu_sendv_packet_async(nc, iov, ARRAY_SIZE(iov), NULL); } static ssize_t nc_sendv_compat(NetClientState *nc, const struct iovec *iov, @@ -786,11 +791,7 @@ static ssize_t nc_sendv_compat(NetClientState *nc, const struct iovec *iov, offset = iov_to_buf(iov, iovcnt, 0, buf, offset); } - if (flags & QEMU_NET_PACKET_FLAG_RAW && nc->info->receive_raw) { - ret = nc->info->receive_raw(nc, buffer, offset); - } else { - ret = nc->info->receive(nc, buffer, offset); - } + ret = nc->info->receive(nc, buffer, offset); g_free(buf); return ret; @@ -823,7 +824,7 @@ static ssize_t qemu_deliver_packet_iov(NetClientState *sender, owned_reentrancy_guard->engaged_in_io = true; } - if (nc->info->receive_iov && !(flags & QEMU_NET_PACKET_FLAG_RAW)) { + if (nc->info->receive_iov) { ret = nc->info->receive_iov(nc, iov, iovcnt); } else { ret = nc_sendv_compat(nc, iov, iovcnt, flags); diff --git a/net/queue.c b/net/queue.c index c872d51df8..70d29d7ac0 100644 --- a/net/queue.c +++ b/net/queue.c @@ -43,7 +43,6 @@ struct NetPacket { QTAILQ_ENTRY(NetPacket) entry; NetClientState *sender; - unsigned flags; int size; NetPacketSent *sent_cb; uint8_t data[]; @@ -92,7 +91,6 @@ void qemu_del_net_queue(NetQueue *queue) static void qemu_net_queue_append(NetQueue *queue, NetClientState *sender, - unsigned flags, const uint8_t *buf, size_t size, NetPacketSent *sent_cb) @@ -104,7 +102,6 @@ static void qemu_net_queue_append(NetQueue *queue, } packet = g_malloc(sizeof(NetPacket) + size); packet->sender = sender; - packet->flags = flags; packet->size = size; packet->sent_cb = sent_cb; memcpy(packet->data, buf, size); @@ -115,7 +112,6 @@ static void qemu_net_queue_append(NetQueue *queue, void qemu_net_queue_append_iov(NetQueue *queue, NetClientState *sender, - unsigned flags, const struct iovec *iov, int iovcnt, NetPacketSent *sent_cb) @@ -134,7 +130,6 @@ void qemu_net_queue_append_iov(NetQueue *queue, packet = g_malloc(sizeof(NetPacket) + max_len); packet->sender = sender; packet->sent_cb = sent_cb; - packet->flags = flags; packet->size = 0; for (i = 0; i < iovcnt; i++) { @@ -150,7 +145,6 @@ void qemu_net_queue_append_iov(NetQueue *queue, static ssize_t qemu_net_queue_deliver(NetQueue *queue, NetClientState *sender, - unsigned flags, const uint8_t *data, size_t size) { @@ -161,7 +155,7 @@ static ssize_t qemu_net_queue_deliver(NetQueue *queue, }; queue->delivering = 1; - ret = queue->deliver(sender, flags, &iov, 1, queue->opaque); + ret = queue->deliver(sender, &iov, 1, queue->opaque); queue->delivering = 0; return ret; @@ -169,14 +163,13 @@ static ssize_t qemu_net_queue_deliver(NetQueue *queue, static ssize_t qemu_net_queue_deliver_iov(NetQueue *queue, NetClientState *sender, - unsigned flags, const struct iovec *iov, int iovcnt) { ssize_t ret = -1; queue->delivering = 1; - ret = queue->deliver(sender, flags, iov, iovcnt, queue->opaque); + ret = queue->deliver(sender, iov, iovcnt, queue->opaque); queue->delivering = 0; return ret; @@ -190,7 +183,7 @@ ssize_t qemu_net_queue_receive(NetQueue *queue, return 0; } - return qemu_net_queue_deliver(queue, NULL, 0, data, size); + return qemu_net_queue_deliver(queue, NULL, data, size); } ssize_t qemu_net_queue_receive_iov(NetQueue *queue, @@ -201,12 +194,11 @@ ssize_t qemu_net_queue_receive_iov(NetQueue *queue, return 0; } - return qemu_net_queue_deliver_iov(queue, NULL, 0, iov, iovcnt); + return qemu_net_queue_deliver_iov(queue, NULL, iov, iovcnt); } ssize_t qemu_net_queue_send(NetQueue *queue, NetClientState *sender, - unsigned flags, const uint8_t *data, size_t size, NetPacketSent *sent_cb) @@ -214,13 +206,13 @@ ssize_t qemu_net_queue_send(NetQueue *queue, ssize_t ret; if (queue->delivering || !qemu_can_send_packet(sender)) { - qemu_net_queue_append(queue, sender, flags, data, size, sent_cb); + qemu_net_queue_append(queue, sender, data, size, sent_cb); return 0; } - ret = qemu_net_queue_deliver(queue, sender, flags, data, size); + ret = qemu_net_queue_deliver(queue, sender, data, size); if (ret == 0) { - qemu_net_queue_append(queue, sender, flags, data, size, sent_cb); + qemu_net_queue_append(queue, sender, data, size, sent_cb); return 0; } @@ -231,7 +223,6 @@ ssize_t qemu_net_queue_send(NetQueue *queue, ssize_t qemu_net_queue_send_iov(NetQueue *queue, NetClientState *sender, - unsigned flags, const struct iovec *iov, int iovcnt, NetPacketSent *sent_cb) @@ -239,13 +230,13 @@ ssize_t qemu_net_queue_send_iov(NetQueue *queue, ssize_t ret; if (queue->delivering || !qemu_can_send_packet(sender)) { - qemu_net_queue_append_iov(queue, sender, flags, iov, iovcnt, sent_cb); + qemu_net_queue_append_iov(queue, sender, iov, iovcnt, sent_cb); return 0; } - ret = qemu_net_queue_deliver_iov(queue, sender, flags, iov, iovcnt); + ret = qemu_net_queue_deliver_iov(queue, sender, iov, iovcnt); if (ret == 0) { - qemu_net_queue_append_iov(queue, sender, flags, iov, iovcnt, sent_cb); + qemu_net_queue_append_iov(queue, sender, iov, iovcnt, sent_cb); return 0; } @@ -285,7 +276,6 @@ bool qemu_net_queue_flush(NetQueue *queue) ret = qemu_net_queue_deliver(queue, packet->sender, - packet->flags, packet->data, packet->size); if (ret == 0) { diff --git a/net/tap.c b/net/tap.c index d94731b2fa..d54e90f184 100644 --- a/net/tap.c +++ b/net/tap.c @@ -367,7 +367,6 @@ static NetClientInfo net_tap_info = { .type = NET_CLIENT_DRIVER_TAP, .size = sizeof(TAPState), .receive = tap_receive, - .receive_raw = tap_receive_raw, .receive_iov = tap_receive_iov, .poll = tap_poll, .cleanup = tap_cleanup,