From: Adrien Mazarguil <adrien.mazarguil@6wind.com>
To: dev@dpdk.org
Subject: [dpdk-dev] [PATCH 05/16] mlx4: add L2 tunnel (VXLAN) RX checksum offload support
Date: Sat, 6 Jun 2015 01:15:09 +0200 [thread overview]
Message-ID: <1433546120-2254-6-git-send-email-adrien.mazarguil@6wind.com> (raw)
In-Reply-To: <1433546120-2254-1-git-send-email-adrien.mazarguil@6wind.com>
Depending on adapters features and VXLAN support in the kernel, VXLAN frames
can be automatically recognized, in which case checksum validation occurs on
inner and outer L3 and L4.
Signed-off-by: Adrien Mazarguil <adrien.mazarguil@6wind.com>
Acked-by: Guillaume Gaudonville <guillaume.gaudonville@6wind.com>
---
drivers/net/mlx4/mlx4.c | 34 ++++++++++++++++++++++++++++++++++
1 file changed, 34 insertions(+)
diff --git a/drivers/net/mlx4/mlx4.c b/drivers/net/mlx4/mlx4.c
index cec894f..3210120 100644
--- a/drivers/net/mlx4/mlx4.c
+++ b/drivers/net/mlx4/mlx4.c
@@ -212,6 +212,7 @@ struct rxq {
} elts;
unsigned int sp:1; /* Use scattered RX elements. */
unsigned int csum:1; /* Enable checksum offloading. */
+ unsigned int csum_l2tun:1; /* Same for L2 tunnels. */
uint32_t mb_len; /* Length of a mp-issued mbuf. */
struct mlx4_rxq_stats stats; /* RX queue counters. */
unsigned int socket; /* CPU socket ID for allocations. */
@@ -285,6 +286,7 @@ struct priv {
unsigned int hw_tss:1; /* TSS is supported. */
unsigned int hw_rss:1; /* RSS is supported. */
unsigned int hw_csum:1; /* Checksum offload is supported. */
+ unsigned int hw_csum_l2tun:1; /* Same for L2 tunnels. */
unsigned int rss:1; /* RSS is enabled. */
unsigned int vf:1; /* This is a VF device. */
#ifdef INLINE_RECV
@@ -2329,6 +2331,25 @@ rxq_wc_to_ol_flags(const struct rxq *rxq, uint64_t exp_wc_flags)
IBV_EXP_L3_RX_CSUM_OK, PKT_RX_IP_CKSUM_BAD) |
TRANSPOSE(~exp_wc_flags,
IBV_EXP_L4_RX_CSUM_OK, PKT_RX_L4_CKSUM_BAD);
+ /*
+ * PKT_RX_IP_CKSUM_BAD and PKT_RX_L4_CKSUM_BAD are used in place
+ * of PKT_RX_EIP_CKSUM_BAD because the latter is not functional
+ * (its value is 0).
+ */
+ if ((exp_wc_flags & IBV_EXP_L2_TUNNEL_PACKET) && (rxq->csum_l2tun))
+ ol_flags |=
+ TRANSPOSE(exp_wc_flags,
+ IBV_EXP_L2_TUNNEL_IPV4_PACKET,
+ PKT_RX_TUNNEL_IPV4_HDR) |
+ TRANSPOSE(exp_wc_flags,
+ IBV_EXP_L2_TUNNEL_IPV6_PACKET,
+ PKT_RX_TUNNEL_IPV6_HDR) |
+ TRANSPOSE(~exp_wc_flags,
+ IBV_EXP_L2_TUNNEL_L3_RX_CSUM_OK,
+ PKT_RX_IP_CKSUM_BAD) |
+ TRANSPOSE(~exp_wc_flags,
+ IBV_EXP_L2_TUNNEL_L4_RX_CSUM_OK,
+ PKT_RX_L4_CKSUM_BAD);
return ol_flags;
}
@@ -2859,6 +2880,10 @@ rxq_rehash(struct rte_eth_dev *dev, struct rxq *rxq)
tmpl.csum = !!dev->data->dev_conf.rxmode.hw_ip_checksum;
rxq->csum = tmpl.csum;
}
+ if (priv->hw_csum_l2tun) {
+ tmpl.csum_l2tun = !!dev->data->dev_conf.rxmode.hw_ip_checksum;
+ rxq->csum_l2tun = tmpl.csum_l2tun;
+ }
/* Enable scattered packets support for this queue if necessary. */
if ((dev->data->dev_conf.rxmode.jumbo_frame) &&
(dev->data->dev_conf.rxmode.max_rx_pkt_len >
@@ -3078,6 +3103,8 @@ rxq_setup(struct rte_eth_dev *dev, struct rxq *rxq, uint16_t desc,
/* Toggle RX checksum offload if hardware supports it. */
if (priv->hw_csum)
tmpl.csum = !!dev->data->dev_conf.rxmode.hw_ip_checksum;
+ if (priv->hw_csum_l2tun)
+ tmpl.csum_l2tun = !!dev->data->dev_conf.rxmode.hw_ip_checksum;
/* Enable scattered packets support for this queue if necessary. */
if ((dev->data->dev_conf.rxmode.jumbo_frame) &&
(dev->data->dev_conf.rxmode.max_rx_pkt_len >
@@ -4270,6 +4297,8 @@ static const struct eth_dev_ops mlx4_dev_ops = {
.mac_addr_remove = mlx4_mac_addr_remove,
.mac_addr_add = mlx4_mac_addr_add,
.mtu_set = mlx4_dev_set_mtu,
+ .udp_tunnel_add = NULL,
+ .udp_tunnel_del = NULL,
.fdir_add_signature_filter = NULL,
.fdir_update_signature_filter = NULL,
.fdir_remove_signature_filter = NULL,
@@ -4599,6 +4628,11 @@ mlx4_pci_devinit(struct rte_pci_driver *pci_drv, struct rte_pci_device *pci_dev)
DEBUG("checksum offloading is %ssupported",
(priv->hw_csum ? "" : "not "));
+ priv->hw_csum_l2tun = !!(exp_device_attr.exp_device_cap_flags &
+ IBV_EXP_DEVICE_L2_TUNNEL_OFFLOADS);
+ DEBUG("L2 tunnel checksum offloads are %ssupported",
+ (priv->hw_csum_l2tun ? "" : "not "));
+
#ifdef INLINE_RECV
priv->inl_recv_size = mlx4_getenv_int("MLX4_INLINE_RECV_SIZE");
--
2.1.0
next prev parent reply other threads:[~2015-06-05 23:15 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-05 23:15 [dpdk-dev] [PATCH 00/16] mlx4: MOFED 3.0 support, bugfixes and enhancements Adrien Mazarguil
2015-06-05 23:15 ` [dpdk-dev] [PATCH 01/16] mlx4: add MOFED 3.0 compatibility to interfaces names retrieval Adrien Mazarguil
2015-06-05 23:15 ` [dpdk-dev] [PATCH 02/16] mlx4: use experimental verbs for polling and completions Adrien Mazarguil
2015-06-05 23:15 ` [dpdk-dev] [PATCH 03/16] mlx4: make sure experimental device query function is implemented Adrien Mazarguil
2015-06-05 23:15 ` [dpdk-dev] [PATCH 04/16] mlx4: add L3 and L4 RX checksum offload support Adrien Mazarguil
2015-06-05 23:15 ` Adrien Mazarguil [this message]
2015-06-05 23:15 ` [dpdk-dev] [PATCH 06/16] mlx4: use faster CQ polling function Adrien Mazarguil
2015-06-05 23:15 ` [dpdk-dev] [PATCH 07/16] mlx4: update optimized steering warning message Adrien Mazarguil
2015-06-05 23:15 ` [dpdk-dev] [PATCH 08/16] mlx4: avoid looking up WR ID to improve RX performance Adrien Mazarguil
2015-06-05 23:15 ` [dpdk-dev] [PATCH 09/16] mlx4: merge RX queue setup functions Adrien Mazarguil
2015-06-05 23:15 ` [dpdk-dev] [PATCH 10/16] mlx4: allow applications to use fork() safely Adrien Mazarguil
2015-06-05 23:15 ` [dpdk-dev] [PATCH 11/16] mlx4: improve accuracy of link status information Adrien Mazarguil
2015-06-05 23:15 ` [dpdk-dev] [PATCH 12/16] mlx4: add support for upstream flow steering API Adrien Mazarguil
2015-06-05 23:15 ` [dpdk-dev] [PATCH 13/16] mlx4: fix error message for invalid number of descriptors Adrien Mazarguil
2015-06-05 23:15 ` [dpdk-dev] [PATCH 14/16] mlx4: remove provision for flow creation failure in DMFS A0 mode Adrien Mazarguil
2015-06-05 23:15 ` [dpdk-dev] [PATCH 15/16] mlx4: fix support for multiple VLAN filters Adrien Mazarguil
2015-06-05 23:15 ` [dpdk-dev] [PATCH 16/16] mlx4: query netdevice to get initial MAC address Adrien Mazarguil
2015-06-30 9:27 ` [dpdk-dev] [PATCH v2 00/23] mlx4: MOFED 3.0 support, bugfixes and enhancements Adrien Mazarguil
2015-06-30 9:27 ` [dpdk-dev] [PATCH v2 01/23] mlx4: fix possible crash on scattered mbuf allocation failure Adrien Mazarguil
2015-06-30 9:27 ` [dpdk-dev] [PATCH v2 02/23] mlx4: add MOFED 3.0 compatibility to interfaces names retrieval Adrien Mazarguil
2015-06-30 9:27 ` [dpdk-dev] [PATCH v2 03/23] mlx4: make sure experimental device query function is implemented Adrien Mazarguil
2015-06-30 9:27 ` [dpdk-dev] [PATCH v2 04/23] mlx4: avoid looking up WR ID to improve RX performance Adrien Mazarguil
2015-06-30 9:27 ` [dpdk-dev] [PATCH v2 05/23] mlx4: merge RX queue setup functions Adrien Mazarguil
2015-06-30 9:27 ` [dpdk-dev] [PATCH v2 06/23] mlx4: allow applications to partially use fork() Adrien Mazarguil
2015-06-30 9:27 ` [dpdk-dev] [PATCH v2 07/23] mlx4: improve accuracy of link status information Adrien Mazarguil
2015-06-30 9:27 ` [dpdk-dev] [PATCH v2 08/23] mlx4: use MOFED 3.0 extended flow steering API Adrien Mazarguil
2015-06-30 9:27 ` [dpdk-dev] [PATCH v2 09/23] mlx4: fix error message for invalid number of descriptors Adrien Mazarguil
2015-06-30 9:27 ` [dpdk-dev] [PATCH v2 10/23] mlx4: remove provision for flow creation failure in DMFS A0 mode Adrien Mazarguil
2015-06-30 9:27 ` [dpdk-dev] [PATCH v2 11/23] mlx4: fix support for multiple VLAN filters Adrien Mazarguil
2015-06-30 9:27 ` [dpdk-dev] [PATCH v2 12/23] mlx4: query netdevice to get initial MAC address Adrien Mazarguil
2015-06-30 9:27 ` [dpdk-dev] [PATCH v2 13/23] mlx4: use MOFED 3.0 fast verbs interface for RX operations Adrien Mazarguil
2015-06-30 9:28 ` [dpdk-dev] [PATCH v2 14/23] mlx4: improve performance by requesting TX completion events less often Adrien Mazarguil
2015-06-30 9:28 ` [dpdk-dev] [PATCH v2 15/23] mlx4: use MOFED 3.0 fast verbs interface for TX operations Adrien Mazarguil
2015-06-30 9:28 ` [dpdk-dev] [PATCH v2 16/23] mlx4: move scattered TX processing to helper function Adrien Mazarguil
2015-06-30 9:28 ` [dpdk-dev] [PATCH v2 17/23] mlx4: shrink TX queue elements for better performance Adrien Mazarguil
2015-06-30 9:28 ` [dpdk-dev] [PATCH v2 18/23] mlx4: prefetch completed TX mbufs before releasing them Adrien Mazarguil
2015-06-30 9:28 ` [dpdk-dev] [PATCH v2 19/23] mlx4: add L3 and L4 checksum offload support Adrien Mazarguil
2015-06-30 9:28 ` [dpdk-dev] [PATCH v2 20/23] mlx4: add L2 tunnel (VXLAN) " Adrien Mazarguil
2015-06-30 9:28 ` [dpdk-dev] [PATCH v2 21/23] mlx4: associate resource domain with CQs and QPs to enhance performance Adrien Mazarguil
2015-06-30 9:28 ` [dpdk-dev] [PATCH v2 22/23] mlx4: disable multicast echo when device is not VF Adrien Mazarguil
2015-06-30 9:28 ` [dpdk-dev] [PATCH v2 23/23] doc: update mlx4 documentation following MOFED 3.0 changes Adrien Mazarguil
2015-07-01 9:33 ` [dpdk-dev] [PATCH v2 00/23] mlx4: MOFED 3.0 support, bugfixes and enhancements Thomas Monjalon
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