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Sun, 23 Jul 2023 05:09:49 -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 3/4] vdpa: Restore vlan filtering state Date: Sun, 23 Jul 2023 20:09:13 +0800 Message-Id: X-Mailer: git-send-email 2.25.1 In-Reply-To: References: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::434; envelope-from=yin31149@gmail.com; helo=mail-pf1-x434.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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @gmail.com) X-ZM-MESSAGEID: 1690114265471100019 This patch introduces vhost_vdpa_net_load_single_vlan() and vhost_vdpa_net_load_vlan() to restore the vlan filtering state at device's startup. Co-developed-by: Eugenio P=C3=A9rez Signed-off-by: Eugenio P=C3=A9rez Signed-off-by: Hawkins Jiawei --- v2: - remove the extra line pointed out by Eugenio v1: https://lore.kernel.org/all/0a568cc8a8d2b750c2e09b2237e9f05cece07c3f.16= 89690854.git.yin31149@gmail.com/ net/vhost-vdpa.c | 48 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) diff --git a/net/vhost-vdpa.c b/net/vhost-vdpa.c index 9795306742..347241796d 100644 --- a/net/vhost-vdpa.c +++ b/net/vhost-vdpa.c @@ -965,6 +965,50 @@ static int vhost_vdpa_net_load_rx(VhostVDPAState *s, return 0; } =20 +static int vhost_vdpa_net_load_single_vlan(VhostVDPAState *s, + const VirtIONet *n, + uint16_t vid) +{ + const struct iovec data =3D { + .iov_base =3D &vid, + .iov_len =3D sizeof(vid), + }; + ssize_t dev_written =3D vhost_vdpa_net_load_cmd(s, VIRTIO_NET_CTRL_VLA= N, + VIRTIO_NET_CTRL_VLAN_ADD, + &data, 1); + if (unlikely(dev_written < 0)) { + return dev_written; + } + if (unlikely(*s->status !=3D VIRTIO_NET_OK)) { + return -EIO; + } + + return 0; +} + +static int vhost_vdpa_net_load_vlan(VhostVDPAState *s, + const VirtIONet *n) +{ + int r; + + if (!virtio_vdev_has_feature(&n->parent_obj, VIRTIO_NET_F_CTRL_VLAN)) { + return 0; + } + + for (int i =3D 0; i < MAX_VLAN >> 5; i++) { + for (int j =3D 0; n->vlans[i] && j <=3D 0x1f; j++) { + if (n->vlans[i] & (1U << j)) { + r =3D vhost_vdpa_net_load_single_vlan(s, n, (i << 5) + j); + if (unlikely(r !=3D 0)) { + return r; + } + } + } + } + + return 0; +} + static int vhost_vdpa_net_load(NetClientState *nc) { VhostVDPAState *s =3D DO_UPCAST(VhostVDPAState, nc, nc); @@ -995,6 +1039,10 @@ static int vhost_vdpa_net_load(NetClientState *nc) if (unlikely(r)) { return r; } + r =3D vhost_vdpa_net_load_vlan(s, n); + if (unlikely(r)) { + return r; + } =20 return 0; } --=20 2.25.1