From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mellanox.co.il (mail-il-dmz.mellanox.com [193.47.165.129]) by dpdk.org (Postfix) with ESMTP id 5C07D1B1A1 for ; Thu, 5 Oct 2017 11:33:31 +0200 (CEST) Received: from Internal Mail-Server by MTLPINE1 (envelope-from ophirmu@mellanox.com) with ESMTPS (AES256-SHA encrypted); 5 Oct 2017 11:33:27 +0200 Received: from pegasus05.mtr.labs.mlnx (pegasus05.mtr.labs.mlnx [10.210.16.100]) by labmailer.mlnx (8.13.8/8.13.8) with ESMTP id v959XR8f015299; Thu, 5 Oct 2017 12:33:27 +0300 Received: from pegasus05.mtr.labs.mlnx (localhost [127.0.0.1]) by pegasus05.mtr.labs.mlnx (8.14.7/8.14.7) with ESMTP id v959XREo012583; Thu, 5 Oct 2017 09:33:27 GMT Received: (from root@localhost) by pegasus05.mtr.labs.mlnx (8.14.7/8.14.7/Submit) id v959XRfY012582; Thu, 5 Oct 2017 09:33:27 GMT From: Ophir Munk To: Adrien Mazarguil Cc: dev@dpdk.org, Thomas Monjalon , Olga Shern , Matan Azrad , Moti Haimovsky Date: Thu, 5 Oct 2017 09:33:10 +0000 Message-Id: <1507195992-12513-6-git-send-email-ophirmu@mellanox.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1507195992-12513-1-git-send-email-ophirmu@mellanox.com> References: <1507195992-12513-1-git-send-email-ophirmu@mellanox.com> Subject: [dpdk-dev] [PATCH v4 5/7] net/mlx4: restore Tx checksum offloads 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: Thu, 05 Oct 2017 09:33:31 -0000 From: Moti Haimovsky This patch adds hardware offloading support for IPv4, UDP and TCP checksum calculation, including inner/outer checksums on supported tunnel types. Signed-off-by: Moti Haimovsky Acked-by: Adrien Mazarguil --- drivers/net/mlx4/mlx4.c | 11 +++++++++++ drivers/net/mlx4/mlx4.h | 2 ++ drivers/net/mlx4/mlx4_ethdev.c | 6 ++++++ drivers/net/mlx4/mlx4_prm.h | 2 ++ drivers/net/mlx4/mlx4_rxtx.c | 19 +++++++++++++++++++ drivers/net/mlx4/mlx4_rxtx.h | 2 ++ drivers/net/mlx4/mlx4_txq.c | 2 ++ 7 files changed, 44 insertions(+) diff --git a/drivers/net/mlx4/mlx4.c b/drivers/net/mlx4/mlx4.c index b084903..385ddaa 100644 --- a/drivers/net/mlx4/mlx4.c +++ b/drivers/net/mlx4/mlx4.c @@ -529,6 +529,17 @@ struct mlx4_conf { priv->pd = pd; priv->mtu = ETHER_MTU; priv->vf = vf; + priv->hw_csum = !!(device_attr.device_cap_flags & + IBV_DEVICE_RAW_IP_CSUM); + DEBUG("checksum offloading is %ssupported", + (priv->hw_csum ? "" : "not ")); + /* Only ConnectX-3 Pro supports tunneling. */ + priv->hw_csum_l2tun = + priv->hw_csum && + (device_attr.vendor_part_id == + PCI_DEVICE_ID_MELLANOX_CONNECTX3PRO); + DEBUG("L2 tunnel checksum offloads are %ssupported", + (priv->hw_csum_l2tun ? "" : "not ")); /* Configure the first MAC address by default. */ if (mlx4_get_mac(priv, &mac.addr_bytes)) { ERROR("cannot get MAC address, is mlx4_en loaded?" diff --git a/drivers/net/mlx4/mlx4.h b/drivers/net/mlx4/mlx4.h index 93e5502..0b71867 100644 --- a/drivers/net/mlx4/mlx4.h +++ b/drivers/net/mlx4/mlx4.h @@ -104,6 +104,8 @@ struct priv { unsigned int vf:1; /* This is a VF device. */ unsigned int intr_alarm:1; /* An interrupt alarm is scheduled. */ unsigned int isolated:1; /* Toggle isolated mode. */ + unsigned int hw_csum:1; /* Checksum offload is supported. */ + unsigned int hw_csum_l2tun:1; /* Checksum support for L2 tunnels. */ struct rte_intr_handle intr_handle; /* Port interrupt handle. */ struct rte_flow_drop *flow_drop_queue; /* Flow drop queue. */ LIST_HEAD(mlx4_flows, rte_flow) flows; diff --git a/drivers/net/mlx4/mlx4_ethdev.c b/drivers/net/mlx4/mlx4_ethdev.c index a9e8059..bec1787 100644 --- a/drivers/net/mlx4/mlx4_ethdev.c +++ b/drivers/net/mlx4/mlx4_ethdev.c @@ -553,6 +553,12 @@ info->max_mac_addrs = 1; info->rx_offload_capa = 0; info->tx_offload_capa = 0; + if (priv->hw_csum) + info->tx_offload_capa |= (DEV_TX_OFFLOAD_IPV4_CKSUM | + DEV_TX_OFFLOAD_UDP_CKSUM | + DEV_TX_OFFLOAD_TCP_CKSUM); + if (priv->hw_csum_l2tun) + info->tx_offload_capa |= DEV_TX_OFFLOAD_OUTER_IPV4_CKSUM; if (mlx4_get_ifname(priv, &ifname) == 0) info->if_index = if_nametoindex(ifname); info->speed_capa = diff --git a/drivers/net/mlx4/mlx4_prm.h b/drivers/net/mlx4/mlx4_prm.h index 085a595..df5a6b4 100644 --- a/drivers/net/mlx4/mlx4_prm.h +++ b/drivers/net/mlx4/mlx4_prm.h @@ -64,6 +64,8 @@ /* Work queue element (WQE) flags. */ #define MLX4_BIT_WQE_OWN 0x80000000 +#define MLX4_WQE_CTRL_IIP_HDR_CSUM (1 << 28) +#define MLX4_WQE_CTRL_IL4_HDR_CSUM (1 << 27) #define MLX4_SIZE_TO_TXBBS(size) \ (RTE_ALIGN((size), (MLX4_TXBB_SIZE)) >> (MLX4_TXBB_SHIFT)) diff --git a/drivers/net/mlx4/mlx4_rxtx.c b/drivers/net/mlx4/mlx4_rxtx.c index cc0baaa..fe7d5d0 100644 --- a/drivers/net/mlx4/mlx4_rxtx.c +++ b/drivers/net/mlx4/mlx4_rxtx.c @@ -431,6 +431,25 @@ struct pv { } else { srcrb_flags = RTE_BE32(MLX4_WQE_CTRL_SOLICIT); } + /* Enable HW checksum offload if requested */ + if (txq->csum && + (pkt->ol_flags & + (PKT_TX_IP_CKSUM | PKT_TX_TCP_CKSUM | PKT_TX_UDP_CKSUM))) { + const uint64_t is_tunneled = (pkt->ol_flags & + (PKT_TX_TUNNEL_GRE | + PKT_TX_TUNNEL_VXLAN)); + + if (is_tunneled && txq->csum_l2tun) { + owner_opcode |= MLX4_WQE_CTRL_IIP_HDR_CSUM | + MLX4_WQE_CTRL_IL4_HDR_CSUM; + if (pkt->ol_flags & PKT_TX_OUTER_IP_CKSUM) + srcrb_flags |= + RTE_BE32(MLX4_WQE_CTRL_IP_HDR_CSUM); + } else { + srcrb_flags |= RTE_BE32(MLX4_WQE_CTRL_IP_HDR_CSUM | + MLX4_WQE_CTRL_TCP_UDP_CSUM); + } + } ctrl->srcrb_flags = srcrb_flags; /* * Make sure descriptor is fully written before diff --git a/drivers/net/mlx4/mlx4_rxtx.h b/drivers/net/mlx4/mlx4_rxtx.h index 528e286..a742f61 100644 --- a/drivers/net/mlx4/mlx4_rxtx.h +++ b/drivers/net/mlx4/mlx4_rxtx.h @@ -108,6 +108,8 @@ struct txq { struct txq_elt (*elts)[]; /**< Tx elements. */ struct mlx4_txq_stats stats; /**< Tx queue counters. */ uint32_t max_inline; /**< Max inline send size. */ + uint32_t csum:1; /**< Enable checksum offloading. */ + uint32_t csum_l2tun:1; /**< Same for L2 tunnels. */ uint8_t *bounce_buf; /**< Memory used for storing the first DWORD of data TXBBs. */ struct { diff --git a/drivers/net/mlx4/mlx4_txq.c b/drivers/net/mlx4/mlx4_txq.c index 7552a88..96429bc 100644 --- a/drivers/net/mlx4/mlx4_txq.c +++ b/drivers/net/mlx4/mlx4_txq.c @@ -338,6 +338,8 @@ struct txq_mp2mr_mbuf_check_data { (void *)dev, strerror(rte_errno)); goto error; } + tmpl.csum = priv->hw_csum; + tmpl.csum_l2tun = priv->hw_csum_l2tun; DEBUG("priv->device_attr.max_qp_wr is %d", priv->device_attr.max_qp_wr); DEBUG("priv->device_attr.max_sge is %d", -- 1.8.3.1