From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 7E459439AD; Wed, 24 Jan 2024 01:05:13 +0100 (CET) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id B4D7D41104; Wed, 24 Jan 2024 01:04:46 +0100 (CET) Received: from mail-pj1-f74.google.com (mail-pj1-f74.google.com [209.85.216.74]) by mails.dpdk.org (Postfix) with ESMTP id AFF5E40E78 for ; Wed, 24 Jan 2024 01:04:44 +0100 (CET) Received: by mail-pj1-f74.google.com with SMTP id 98e67ed59e1d1-290d095fa7bso1348009a91.1 for ; Tue, 23 Jan 2024 16:04:44 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1706054684; x=1706659484; darn=dpdk.org; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=VyC/NiaVh5uOxiixv+3Q0RS5xeYutZeuIkPTFZgAniw=; b=NB2Gvi74fr8QNFnJs8M8kIWGYcy3DSvj12jNI5pLzS905Dl8Gp1qu780RpDsOUAGK9 tbgUs+rtChPKeh4pdo8BPbb6li2hwLfsOxrDHpmp9jDbzHe5mbkiFKzcoTdkNnjwYhhv KbHsao52HmceizVIy8E37Hw1IangkKD/GoH+OyrniLD1iRQ5Wm5tCL7h6vfKoMc2UFxN 2PMisfKCVU4JTKJrdPqHvhYhK7kQVTLm1XE+nCKlNIh4feUYSRo2BgJ4kiCFz0OzBWU5 xTDXLQ3wUvczQxnQD9JYuzgyLZvlWhQkoQHJOET26Bq+ln3QbsXhIlkFr3XhDQJQmui3 jnxg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1706054684; x=1706659484; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=VyC/NiaVh5uOxiixv+3Q0RS5xeYutZeuIkPTFZgAniw=; b=tptEtmyB0XJa01+Uns2Q6Hg+xgVyebMy9rd99eItU69P1xyPvyQg7U+UTZ0wcVcK2R 2lTJ63kPlKS5QWxXrB84bblpAGZAi+B/6asTt4H51GDUv8eeXfkyNHnNHFksa4haSJud tzf01tzTEkI3afAty2eH1jS8ms/YkIYKtUU8IJEa9v21CWX8hHtf82VblSNwb+j4/ZJs 6eqH+DyP+Vuc9PaCpV51GS7P9EbOgoGugKr1gmumhun9mbl6Oa6VzmoQ2Vk6AgDI2Kr/ +5fNRVw30tYD4dMQVXyc7N93QlSnVjKeEYZjo/0Fe31VQ/9FO5Wzd7x0fdmktQHpULiT SY+A== X-Gm-Message-State: AOJu0Yy4KqN/wpvYie5s4at1C2pJqRK+CwJ5kA6BsvHlmSYwRIofmZeF 1yPhT56Mh10+e8j/KXoesSjtqbyWZBvZa6uhKf0U2ULqNYmW5k274MQMJrs3ikI5J+q/8ps/ynn EdDgwM0evVg== X-Google-Smtp-Source: AGHT+IFPe77LQAXc0gbMMTGLlxV9BC4NWS50UWHD7hTwEpF0ILqa9lXvP9r+AOB7+Tik+gtl1m4uBYnyG+R/2g== X-Received: from joshwash.sea.corp.google.com ([2620:15c:11c:202:b9a2:fa74:abc3:bc47]) (user=joshwash job=sendgmr) by 2002:a17:90a:1783:b0:290:1a12:738f with SMTP id q3-20020a17090a178300b002901a12738fmr36779pja.3.1706054683742; Tue, 23 Jan 2024 16:04:43 -0800 (PST) Date: Tue, 23 Jan 2024 16:04:22 -0800 In-Reply-To: <20240124000426.418527-1-joshwash@google.com> Mime-Version: 1.0 References: <20240123175831.3219292-1-joshwash@google.com> <20240124000426.418527-1-joshwash@google.com> X-Mailer: git-send-email 2.43.0.429.g432eaa2c6b-goog Message-ID: <20240124000426.418527-5-joshwash@google.com> Subject: [PATCH v3 4/7] net/gve: RSS configuration update support From: Joshua Washington To: Junfeng Guo , Jeroen de Borst , Rushil Gupta , Joshua Washington Cc: dev@dpdk.org, Ferruh Yigit Content-Type: text/plain; charset="UTF-8" X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org This patch adds support for updating the RSS hash key and hash fields in the GVE PMD through the implementation of rss_hash_update and rss_hash_conf_get. The RSS hash key for gVNIC is required to be 40 bytes. On initial configuration of the RSS hash key, the RSS redirection table will be set to a static default, using a round-robin approach for all queues. Note, however, that this patch does not include support for setting the redirection table explicitly. In dev_configure, if the static redirection table has been set, it will be updated to reflect the new queue count, if it has changed. The RSS key must be set before any other RSS configuration can happen. As such, an attempt to set the hash types before the key is configured will fail. Signed-off-by: Joshua Washington Reviewed-by: Rushil Gupta Reviewed-by: Jeroen de Borst --- drivers/net/gve/gve_ethdev.c | 132 ++++++++++++++++++++++++++++++++++- drivers/net/gve/gve_ethdev.h | 3 + 2 files changed, 133 insertions(+), 2 deletions(-) diff --git a/drivers/net/gve/gve_ethdev.c b/drivers/net/gve/gve_ethdev.c index 936ca22cb9..2a68d31808 100644 --- a/drivers/net/gve/gve_ethdev.c +++ b/drivers/net/gve/gve_ethdev.c @@ -1,5 +1,6 @@ /* SPDX-License-Identifier: BSD-3-Clause - * Copyright(C) 2022 Intel Corporation + * Copyright(C) 2022-2023 Intel Corporation + * Copyright(C) 2023 Google LLC */ #include "gve_ethdev.h" @@ -8,6 +9,7 @@ #include "base/gve_osdep.h" #include "gve_version.h" #include "rte_ether.h" +#include "gve_rss.h" static void gve_write_version(uint8_t *driver_version_register) @@ -88,12 +90,31 @@ gve_dev_configure(struct rte_eth_dev *dev) { struct gve_priv *priv = dev->data->dev_private; - if (dev->data->dev_conf.rxmode.mq_mode & RTE_ETH_MQ_RX_RSS_FLAG) + if (dev->data->dev_conf.rxmode.mq_mode & RTE_ETH_MQ_RX_RSS_FLAG) { dev->data->dev_conf.rxmode.offloads |= RTE_ETH_RX_OFFLOAD_RSS_HASH; + priv->rss_config.alg = GVE_RSS_HASH_TOEPLITZ; + } if (dev->data->dev_conf.rxmode.offloads & RTE_ETH_RX_OFFLOAD_TCP_LRO) priv->enable_rsc = 1; + /* Reset RSS RETA in case number of queues changed. */ + if (priv->rss_config.indir) { + struct gve_rss_config update_reta_config; + gve_init_rss_config_from_priv(priv, &update_reta_config); + gve_generate_rss_reta(dev, &update_reta_config); + + int err = gve_adminq_configure_rss(priv, &update_reta_config); + if (err) + PMD_DRV_LOG(ERR, + "Could not reconfigure RSS redirection table."); + else + gve_update_priv_rss_config(priv, &update_reta_config); + + gve_free_rss_config(&update_reta_config); + return err; + } + return 0; } @@ -443,6 +464,8 @@ gve_dev_info_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info) }; dev_info->flow_type_rss_offloads = GVE_RTE_RSS_OFFLOAD_ALL; + dev_info->hash_key_size = GVE_RSS_HASH_KEY_SIZE; + dev_info->reta_size = GVE_RSS_INDIR_SIZE; return 0; } @@ -646,6 +669,107 @@ gve_xstats_get_names(struct rte_eth_dev *dev, return count; } + +static int +gve_rss_hash_update(struct rte_eth_dev *dev, + struct rte_eth_rss_conf *rss_conf) +{ + struct gve_priv *priv = dev->data->dev_private; + struct gve_rss_config gve_rss_conf; + int rss_reta_size; + int err; + + if (gve_validate_rss_hf(rss_conf->rss_hf)) { + PMD_DRV_LOG(ERR, "Unsupported hash function."); + return -EINVAL; + } + + if (rss_conf->algorithm != RTE_ETH_HASH_FUNCTION_TOEPLITZ && + rss_conf->algorithm != RTE_ETH_HASH_FUNCTION_DEFAULT) { + PMD_DRV_LOG(ERR, "Device only supports Toeplitz algorithm."); + return -EINVAL; + } + + if (rss_conf->rss_key_len) { + if (rss_conf->rss_key_len != GVE_RSS_HASH_KEY_SIZE) { + PMD_DRV_LOG(ERR, + "Invalid hash key size. Only RSS hash key size " + "of %u supported", GVE_RSS_HASH_KEY_SIZE); + return -EINVAL; + } + + if (!rss_conf->rss_key) { + PMD_DRV_LOG(ERR, "RSS key must be non-null."); + return -EINVAL; + } + } else { + if (!priv->rss_config.key_size) { + PMD_DRV_LOG(ERR, "RSS key must be initialized before " + "any other configuration."); + return -EINVAL; + } + rss_conf->rss_key_len = priv->rss_config.key_size; + } + + rss_reta_size = priv->rss_config.indir ? + priv->rss_config.indir_size : + GVE_RSS_INDIR_SIZE; + err = gve_init_rss_config(&gve_rss_conf, rss_conf->rss_key_len, + rss_reta_size); + if (err) + return err; + + gve_rss_conf.alg = GVE_RSS_HASH_TOEPLITZ; + err = gve_update_rss_hash_types(priv, &gve_rss_conf, rss_conf); + if (err) + goto err; + err = gve_update_rss_key(priv, &gve_rss_conf, rss_conf); + if (err) + goto err; + + /* Set redirection table to default or preexisting. */ + if (!priv->rss_config.indir) + gve_generate_rss_reta(dev, &gve_rss_conf); + else + memcpy(gve_rss_conf.indir, priv->rss_config.indir, + gve_rss_conf.indir_size * sizeof(*priv->rss_config.indir)); + + err = gve_adminq_configure_rss(priv, &gve_rss_conf); + if (!err) + gve_update_priv_rss_config(priv, &gve_rss_conf); + +err: + gve_free_rss_config(&gve_rss_conf); + return err; +} + +static int +gve_rss_hash_conf_get(struct rte_eth_dev *dev, + struct rte_eth_rss_conf *rss_conf) +{ + struct gve_priv *priv = dev->data->dev_private; + + if (!(dev->data->dev_conf.rxmode.offloads & + RTE_ETH_RX_OFFLOAD_RSS_HASH)) { + PMD_DRV_LOG(ERR, "RSS not configured."); + return -ENOTSUP; + } + + + gve_to_rte_rss_hf(priv->rss_config.hash_types, rss_conf); + rss_conf->rss_key_len = priv->rss_config.key_size; + if (rss_conf->rss_key) { + if (!priv->rss_config.key) { + PMD_DRV_LOG(ERR, "Unable to retrieve default RSS hash key."); + return -ENOTSUP; + } + memcpy(rss_conf->rss_key, priv->rss_config.key, + rss_conf->rss_key_len * sizeof(*rss_conf->rss_key)); + } + + return 0; +} + static const struct eth_dev_ops gve_eth_dev_ops = { .dev_configure = gve_dev_configure, .dev_start = gve_dev_start, @@ -666,6 +790,8 @@ static const struct eth_dev_ops gve_eth_dev_ops = { .mtu_set = gve_dev_mtu_set, .xstats_get = gve_xstats_get, .xstats_get_names = gve_xstats_get_names, + .rss_hash_update = gve_rss_hash_update, + .rss_hash_conf_get = gve_rss_hash_conf_get, }; static const struct eth_dev_ops gve_eth_dev_ops_dqo = { @@ -688,6 +814,8 @@ static const struct eth_dev_ops gve_eth_dev_ops_dqo = { .mtu_set = gve_dev_mtu_set, .xstats_get = gve_xstats_get, .xstats_get_names = gve_xstats_get_names, + .rss_hash_update = gve_rss_hash_update, + .rss_hash_conf_get = gve_rss_hash_conf_get, }; static void diff --git a/drivers/net/gve/gve_ethdev.h b/drivers/net/gve/gve_ethdev.h index bc486cb941..d713657d10 100644 --- a/drivers/net/gve/gve_ethdev.h +++ b/drivers/net/gve/gve_ethdev.h @@ -29,6 +29,9 @@ #define GVE_RX_MIN_BUF_SIZE_GQI 2048 #define GVE_RX_MAX_BUF_SIZE_GQI 4096 +#define GVE_RSS_HASH_KEY_SIZE 40 +#define GVE_RSS_INDIR_SIZE 128 + #define GVE_TX_CKSUM_OFFLOAD_MASK ( \ RTE_MBUF_F_TX_L4_MASK | \ RTE_MBUF_F_TX_TCP_SEG) -- 2.43.0.429.g432eaa2c6b-goog