From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx1.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) by dpdk.org (Postfix) with ESMTP id 7FE291B4F8 for ; Mon, 2 Jul 2018 17:26:05 +0200 (CEST) Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.rdu2.redhat.com [10.11.54.3]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 1093D8315E; Mon, 2 Jul 2018 15:26:05 +0000 (UTC) Received: from localhost.localdomain (ovpn-112-41.ams2.redhat.com [10.36.112.41]) by smtp.corp.redhat.com (Postfix) with ESMTP id D6841111AF34; Mon, 2 Jul 2018 15:26:03 +0000 (UTC) From: Maxime Coquelin To: tiwei.bie@intel.com, zhihong.wang@intel.com, dev@dpdk.org Cc: yong.liu@intel.com, Maxime Coquelin Date: Mon, 2 Jul 2018 17:25:45 +0200 Message-Id: <20180702152547.31423-3-maxime.coquelin@redhat.com> In-Reply-To: <20180702152547.31423-1-maxime.coquelin@redhat.com> References: <20180702152547.31423-1-maxime.coquelin@redhat.com> X-Scanned-By: MIMEDefang 2.78 on 10.11.54.3 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.1]); Mon, 02 Jul 2018 15:26:05 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.1]); Mon, 02 Jul 2018 15:26:05 +0000 (UTC) for IP:'10.11.54.3' DOMAIN:'int-mx03.intmail.prod.int.rdu2.redhat.com' HELO:'smtp.corp.redhat.com' FROM:'maxime.coquelin@redhat.com' RCPT:'' Subject: [dpdk-dev] [PATCH v4 2/4] net/virtio: improve Tx offload features negotiation X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 02 Jul 2018 15:26:05 -0000 This patch improves the Tx offload features selection depending on whether the application request for offloads. When the application doesn't request for Tx offload features, the corresponding features bits aren't negotiated. Signed-off-by: Maxime Coquelin --- drivers/net/virtio/virtio_ethdev.c | 15 +++++++++++++-- drivers/net/virtio/virtio_ethdev.h | 3 --- 2 files changed, 13 insertions(+), 5 deletions(-) diff --git a/drivers/net/virtio/virtio_ethdev.c b/drivers/net/virtio/virtio_ethdev.c index 73c428734..1d223d029 100644 --- a/drivers/net/virtio/virtio_ethdev.c +++ b/drivers/net/virtio/virtio_ethdev.c @@ -1806,8 +1806,10 @@ static int virtio_dev_configure(struct rte_eth_dev *dev) { const struct rte_eth_rxmode *rxmode = &dev->data->dev_conf.rxmode; + const struct rte_eth_txmode *txmode = &dev->data->dev_conf.txmode; struct virtio_hw *hw = dev->data->dev_private; uint64_t rx_offloads = rxmode->offloads; + uint64_t tx_offloads = txmode->offloads; uint64_t req_features; int ret; @@ -1829,6 +1831,15 @@ virtio_dev_configure(struct rte_eth_dev *dev) (1ULL << VIRTIO_NET_F_GUEST_TSO4) | (1ULL << VIRTIO_NET_F_GUEST_TSO6); + if (tx_offloads & (DEV_TX_OFFLOAD_UDP_CKSUM | + DEV_TX_OFFLOAD_TCP_CKSUM)) + req_features |= (1ULL << VIRTIO_NET_F_CSUM); + + if (tx_offloads & DEV_TX_OFFLOAD_TCP_TSO) + req_features |= + (1ULL << VIRTIO_NET_F_HOST_TSO4) | + (1ULL << VIRTIO_NET_F_HOST_TSO6); + /* if request features changed, reinit the device */ if (req_features != hw->req_guest_features) { ret = virtio_init_device(dev, req_features); @@ -2155,14 +2166,14 @@ virtio_dev_info_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info) dev_info->tx_offload_capa = DEV_TX_OFFLOAD_MULTI_SEGS | DEV_TX_OFFLOAD_VLAN_INSERT; - if (hw->guest_features & (1ULL << VIRTIO_NET_F_CSUM)) { + if (host_features & (1ULL << VIRTIO_NET_F_CSUM)) { dev_info->tx_offload_capa |= DEV_TX_OFFLOAD_UDP_CKSUM | DEV_TX_OFFLOAD_TCP_CKSUM; } tso_mask = (1ULL << VIRTIO_NET_F_HOST_TSO4) | (1ULL << VIRTIO_NET_F_HOST_TSO6); - if ((hw->guest_features & tso_mask) == tso_mask) + if ((host_features & tso_mask) == tso_mask) dev_info->tx_offload_capa |= DEV_TX_OFFLOAD_TCP_TSO; } diff --git a/drivers/net/virtio/virtio_ethdev.h b/drivers/net/virtio/virtio_ethdev.h index 350e9ce73..f4d09df71 100644 --- a/drivers/net/virtio/virtio_ethdev.h +++ b/drivers/net/virtio/virtio_ethdev.h @@ -28,9 +28,6 @@ 1u << VIRTIO_NET_F_CTRL_VQ | \ 1u << VIRTIO_NET_F_CTRL_RX | \ 1u << VIRTIO_NET_F_CTRL_VLAN | \ - 1u << VIRTIO_NET_F_CSUM | \ - 1u << VIRTIO_NET_F_HOST_TSO4 | \ - 1u << VIRTIO_NET_F_HOST_TSO6 | \ 1u << VIRTIO_NET_F_MRG_RXBUF | \ 1u << VIRTIO_NET_F_MTU | \ 1ULL << VIRTIO_NET_F_GUEST_ANNOUNCE | \ -- 2.14.4