From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from rcdn-iport-6.cisco.com (rcdn-iport-6.cisco.com [173.37.86.77]) by dpdk.org (Postfix) with ESMTP id 574671C908 for ; Thu, 5 Apr 2018 01:56:20 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=5406; q=dns/txt; s=iport; t=1522886180; x=1524095780; h=from:to:cc:subject:date:message-id:in-reply-to: references; bh=RqcEMgiemttZHg/2JCPJ9R3+ousLvm/1lMNKtt3zV/c=; b=Uuv/dD/T7dbi+wwZJ3JXhVCElSMsb7JVOx9DIbLpoyh6g+k98Qomg1Uu g1rSaLS4ALV4uNkVGDqnYgLY671Jd+ONcsRi2wZexUEHY14s37rB0Iyt0 +Wtbltanuz2hOz+EiMHFra/lQVygtYtyLJq7Igg6vCVqGJn3lAdJS4+4e U=; X-IronPort-AV: E=Sophos;i="5.48,409,1517875200"; d="scan'208";a="376834023" Received: from rcdn-core-11.cisco.com ([173.37.93.147]) by rcdn-iport-6.cisco.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 04 Apr 2018 23:56:19 +0000 Received: from cisco.com (savbu-usnic-a.cisco.com [10.193.184.48]) by rcdn-core-11.cisco.com (8.14.5/8.14.5) with ESMTP id w34NuJnF027464; Wed, 4 Apr 2018 23:56:19 GMT Received: by cisco.com (Postfix, from userid 392789) id 285A820F2001; Wed, 4 Apr 2018 16:56:19 -0700 (PDT) From: John Daley To: ferruh.yigit@intel.com Cc: dev@dpdk.org, John Daley Date: Wed, 4 Apr 2018 16:54:52 -0700 Message-Id: <20180404235455.17241-3-johndale@cisco.com> X-Mailer: git-send-email 2.16.2 In-Reply-To: <20180404235455.17241-1-johndale@cisco.com> References: <20180404235455.17241-1-johndale@cisco.com> Subject: [dpdk-dev] [PATCH] net/enic: support UDP RSS on 1400 series adapters 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: Wed, 04 Apr 2018 23:56:20 -0000 Recent models support IPv4/IPv6 UDP RSS. There is no control bit to enable UDP RSS alone. Instead, the NIC enables/disables TCP and UDP RSS together. Signed-off-by: John Daley Reviewed-by: Hyong Youb Kim --- doc/guides/nics/enic.rst | 2 +- drivers/net/enic/base/vnic_dev.c | 18 ++++++++++++++++++ drivers/net/enic/base/vnic_dev.h | 1 + drivers/net/enic/base/vnic_nic.h | 1 + drivers/net/enic/enic_main.c | 12 ++++++++++++ drivers/net/enic/enic_res.c | 5 +++++ 6 files changed, 38 insertions(+), 1 deletion(-) diff --git a/doc/guides/nics/enic.rst b/doc/guides/nics/enic.rst index 133b1e682..d02a69829 100644 --- a/doc/guides/nics/enic.rst +++ b/doc/guides/nics/enic.rst @@ -416,6 +416,7 @@ Supported features - VLAN filtering (supported via UCSM/CIMC only) - Execution of application by unprivileged system users - IPV4, IPV6 and TCP RSS hashing +- UDP hashing (1400 series and later adapters) - Scattered Rx - MTU update - SR-IOV on UCS managed servers connected to Fabric Interconnects @@ -434,7 +435,6 @@ Known bugs and unsupported features in this release - VLAN based flow direction - Non-IPV4 flow direction - Setting of extended VLAN -- UDP RSS hashing - MTU update only works if Scattered Rx mode is disabled - Maximum receive packet length is ignored if Scattered Rx mode is used diff --git a/drivers/net/enic/base/vnic_dev.c b/drivers/net/enic/base/vnic_dev.c index 386db6411..1d6734dc1 100644 --- a/drivers/net/enic/base/vnic_dev.c +++ b/drivers/net/enic/base/vnic_dev.c @@ -10,6 +10,7 @@ #include "vnic_dev.h" #include "vnic_resource.h" #include "vnic_devcmd.h" +#include "vnic_nic.h" #include "vnic_stats.h" @@ -531,6 +532,23 @@ int vnic_dev_capable_filter_mode(struct vnic_dev *vdev, u32 *mode, return 0; } +int vnic_dev_capable_udp_rss(struct vnic_dev *vdev) +{ + u64 a0 = CMD_NIC_CFG, a1 = 0; + u64 rss_hash_type; + int wait = 1000; + int err; + + err = vnic_dev_cmd(vdev, CMD_CAPABILITY, &a0, &a1, wait); + if (err) + return 0; + if (a0 == 0) + return 0; + rss_hash_type = (a1 >> NIC_CFG_RSS_HASH_TYPE_SHIFT) & + NIC_CFG_RSS_HASH_TYPE_MASK_FIELD; + return ((rss_hash_type & NIC_CFG_RSS_HASH_TYPE_UDP) ? 1 : 0); +} + int vnic_dev_capable(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd) { u64 a0 = (u32)cmd, a1 = 0; diff --git a/drivers/net/enic/base/vnic_dev.h b/drivers/net/enic/base/vnic_dev.h index b3ce26032..62c09fa86 100644 --- a/drivers/net/enic/base/vnic_dev.h +++ b/drivers/net/enic/base/vnic_dev.h @@ -109,6 +109,7 @@ int vnic_dev_capable_adv_filters(struct vnic_dev *vdev); int vnic_dev_capable(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd); int vnic_dev_capable_filter_mode(struct vnic_dev *vdev, u32 *mode, u8 *filter_tags); +int vnic_dev_capable_udp_rss(struct vnic_dev *vdev); int vnic_dev_asic_info(struct vnic_dev *vdev, u16 *asic_type, u16 *asic_rev); int vnic_dev_spec(struct vnic_dev *vdev, unsigned int offset, size_t size, void *value); diff --git a/drivers/net/enic/base/vnic_nic.h b/drivers/net/enic/base/vnic_nic.h index a753b3a5a..b20915e76 100644 --- a/drivers/net/enic/base/vnic_nic.h +++ b/drivers/net/enic/base/vnic_nic.h @@ -33,6 +33,7 @@ #define NIC_CFG_RSS_HASH_TYPE_TCP_IPV6 (1 << 4) #define NIC_CFG_RSS_HASH_TYPE_IPV6_EX (1 << 5) #define NIC_CFG_RSS_HASH_TYPE_TCP_IPV6_EX (1 << 6) +#define NIC_CFG_RSS_HASH_TYPE_UDP (1 << 7) static inline void vnic_set_nic_cfg(u32 *nic_cfg, u8 rss_default_cpu, u8 rss_hash_type, diff --git a/drivers/net/enic/enic_main.c b/drivers/net/enic/enic_main.c index 9b254d98e..f01a77c0a 100644 --- a/drivers/net/enic/enic_main.c +++ b/drivers/net/enic/enic_main.c @@ -1178,10 +1178,22 @@ int enic_set_rss_conf(struct enic *enic, struct rte_eth_rss_conf *rss_conf) rss_hash_type |= NIC_CFG_RSS_HASH_TYPE_IPV4; if (rss_hf & ETH_RSS_NONFRAG_IPV4_TCP) rss_hash_type |= NIC_CFG_RSS_HASH_TYPE_TCP_IPV4; + if (rss_hf & ETH_RSS_NONFRAG_IPV4_UDP) { + /* + * 'TCP' is not a typo. HW does not have a separate + * enable bit for UDP RSS. The TCP bit enables both TCP + * and UDP RSS.. + */ + rss_hash_type |= NIC_CFG_RSS_HASH_TYPE_TCP_IPV4; + } if (rss_hf & ETH_RSS_IPV6) rss_hash_type |= NIC_CFG_RSS_HASH_TYPE_IPV6; if (rss_hf & ETH_RSS_NONFRAG_IPV6_TCP) rss_hash_type |= NIC_CFG_RSS_HASH_TYPE_TCP_IPV6; + if (rss_hf & ETH_RSS_NONFRAG_IPV6_UDP) { + /* Again, 'TCP' is not a typo. */ + rss_hash_type |= NIC_CFG_RSS_HASH_TYPE_TCP_IPV6; + } if (rss_hf & ETH_RSS_IPV6_EX) rss_hash_type |= NIC_CFG_RSS_HASH_TYPE_IPV6_EX; if (rss_hf & ETH_RSS_IPV6_TCP_EX) diff --git a/drivers/net/enic/enic_res.c b/drivers/net/enic/enic_res.c index 47f825e51..34532720c 100644 --- a/drivers/net/enic/enic_res.c +++ b/drivers/net/enic/enic_res.c @@ -144,6 +144,11 @@ int enic_get_vnic_config(struct enic *enic) enic->flow_type_rss_offloads |= ETH_RSS_IPV6_EX; if (ENIC_SETTING(enic, RSSHASH_TCPIPV6_EX)) enic->flow_type_rss_offloads |= ETH_RSS_IPV6_TCP_EX; + if (vnic_dev_capable_udp_rss(enic->vdev)) { + enic->flow_type_rss_offloads |= + ETH_RSS_NONFRAG_IPV4_UDP | ETH_RSS_NONFRAG_IPV6_UDP; + } + /* Zero offloads if RSS is not enabled */ if (!ENIC_SETTING(enic, RSS)) enic->flow_type_rss_offloads = 0; -- 2.16.2