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Sat, 08 Jul 2023 02:26:00 -0700 (PDT) From: Hawkins Jiawei To: jasowang@redhat.com, mst@redhat.com, eperezma@redhat.com Cc: qemu-devel@nongnu.org, yin31149@gmail.com, 18801353760@163.com Subject: [PATCH v3 1/2] vdpa: Restore packet receive filtering state relative with _F_CTRL_RX_EXTRA feature Date: Sat, 8 Jul 2023 17:24:51 +0800 Message-Id: X-Mailer: git-send-email 2.25.1 In-Reply-To: References: MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::532; envelope-from=yin31149@gmail.com; helo=mail-pg1-x532.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, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_ENVFROM_END_DIGIT=0.25, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 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 This patch refactors vhost_vdpa_net_load_rx() to restore the packet receive filtering state in relation to VIRTIO_NET_F_CTRL_RX_EXTRA feature at device's startup. Signed-off-by: Hawkins Jiawei --- v3: - return early if mismatch the condition suggested by Eugenio - remove the `on` variable suggested by Eugenio v2: https://lore.kernel.org/all/66ec4d7e3a680de645043d0331ab65940154f2b8.1688365324.git.yin31149@gmail.com/ - avoid sending CVQ command in default state suggested by Eugenio v1: https://lists.nongnu.org/archive/html/qemu-devel/2023-06/msg04957.html net/vhost-vdpa.c | 88 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 88 insertions(+) diff --git a/net/vhost-vdpa.c b/net/vhost-vdpa.c index 0994836f8c..9a1905fddd 100644 --- a/net/vhost-vdpa.c +++ b/net/vhost-vdpa.c @@ -867,6 +867,94 @@ static int vhost_vdpa_net_load_rx(VhostVDPAState *s, } } + if (!virtio_vdev_has_feature(&n->parent_obj, VIRTIO_NET_F_CTRL_RX_EXTRA)) { + return 0; + } + + /* + * According to virtio_net_reset(), device turns all-unicast mode + * off by default. + * + * Therefore, QEMU should only send this CVQ command if the driver + * sets all-unicast mode on, different from the device's defaults. + * + * Note that the device's defaults can mismatch the driver's + * configuration only at live migration. + */ + if (n->alluni) { + dev_written = vhost_vdpa_net_load_rx_mode(s, + VIRTIO_NET_CTRL_RX_ALLUNI, 1); + if (dev_written < 0) { + return dev_written; + } + if (*s->status != VIRTIO_NET_OK) { + return -EIO; + } + } + + /* + * According to virtio_net_reset(), device turns non-multicast mode + * off by default. + * + * Therefore, QEMU should only send this CVQ command if the driver + * sets non-multicast mode on, different from the device's defaults. + * + * Note that the device's defaults can mismatch the driver's + * configuration only at live migration. + */ + if (n->nomulti) { + dev_written = vhost_vdpa_net_load_rx_mode(s, + VIRTIO_NET_CTRL_RX_NOMULTI, 1); + if (dev_written < 0) { + return dev_written; + } + if (*s->status != VIRTIO_NET_OK) { + return -EIO; + } + } + + /* + * According to virtio_net_reset(), device turns non-unicast mode + * off by default. + * + * Therefore, QEMU should only send this CVQ command if the driver + * sets non-unicast mode on, different from the device's defaults. + * + * Note that the device's defaults can mismatch the driver's + * configuration only at live migration. + */ + if (n->nouni) { + dev_written = vhost_vdpa_net_load_rx_mode(s, + VIRTIO_NET_CTRL_RX_NOUNI, 1); + if (dev_written < 0) { + return dev_written; + } + if (*s->status != VIRTIO_NET_OK) { + return -EIO; + } + } + + /* + * According to virtio_net_reset(), device turns non-broadcast mode + * off by default. + * + * Therefore, QEMU should only send this CVQ command if the driver + * sets non-broadcast mode on, different from the device's defaults. + * + * Note that the device's defaults can mismatch the driver's + * configuration only at live migration. + */ + if (n->nobcast) { + dev_written = vhost_vdpa_net_load_rx_mode(s, + VIRTIO_NET_CTRL_RX_NOBCAST, 1); + if (dev_written < 0) { + return dev_written; + } + if (*s->status != VIRTIO_NET_OK) { + return -EIO; + } + } + return 0; } From patchwork Sat Jul 8 09:24:52 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Hawkins Jiawei X-Patchwork-Id: 1805168 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; 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Sat, 08 Jul 2023 02:26:03 -0700 (PDT) From: Hawkins Jiawei To: jasowang@redhat.com, mst@redhat.com, eperezma@redhat.com Cc: qemu-devel@nongnu.org, yin31149@gmail.com, 18801353760@163.com Subject: [PATCH v3 2/2] vdpa: Allow VIRTIO_NET_F_CTRL_RX_EXTRA in SVQ Date: Sat, 8 Jul 2023 17:24:52 +0800 Message-Id: <15ecc49975f9b8d1316ed4296879564a18abf31e.1688797728.git.yin31149@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: References: MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::629; envelope-from=yin31149@gmail.com; helo=mail-pl1-x629.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, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_ENVFROM_END_DIGIT=0.25, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 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 Enable SVQ with VIRTIO_NET_F_CTRL_RX_EXTRA feature. Signed-off-by: Hawkins Jiawei Acked-by: Eugenio Pérez --- net/vhost-vdpa.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/vhost-vdpa.c b/net/vhost-vdpa.c index 9a1905fddd..1df82636c9 100644 --- a/net/vhost-vdpa.c +++ b/net/vhost-vdpa.c @@ -105,6 +105,7 @@ static const uint64_t vdpa_svq_device_features = BIT_ULL(VIRTIO_NET_F_STATUS) | BIT_ULL(VIRTIO_NET_F_CTRL_VQ) | BIT_ULL(VIRTIO_NET_F_CTRL_RX) | + BIT_ULL(VIRTIO_NET_F_CTRL_RX_EXTRA) | BIT_ULL(VIRTIO_NET_F_MQ) | BIT_ULL(VIRTIO_F_ANY_LAYOUT) | BIT_ULL(VIRTIO_NET_F_CTRL_MAC_ADDR) |