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 ED866439AA; Tue, 23 Jan 2024 18:59:14 +0100 (CET) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 107B842DCA; Tue, 23 Jan 2024 18:58:52 +0100 (CET) Received: from mail-yb1-f202.google.com (mail-yb1-f202.google.com [209.85.219.202]) by mails.dpdk.org (Postfix) with ESMTP id 5FA5F42D7D for ; Tue, 23 Jan 2024 18:58:50 +0100 (CET) Received: by mail-yb1-f202.google.com with SMTP id 3f1490d57ef6-dc374283d67so1492289276.3 for ; Tue, 23 Jan 2024 09:58:50 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1706032730; x=1706637530; 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=quS6EGVWyHfRQqgKQLft6QQumck1b84rskjUJTwbxZn2d75Wrt4QyGSM1T83/Gv7i+ i6lo+iZ1pPZVq6/cF2rHkjWFc59uWKW4PdYB3idQOja4Ndt9mv/lfa+okPwzVphUSJKW +eqOL1VgczucZgsLn0uWbIFARZ5aEb/chGUo7MKynZ+96KirjHm9/+dRjBbA797TP/kB Hi0rvCyzsqpzbLGrvrXdORsY9lzw6/jILBSs59gHz49OZfPF75WnN7EXwZ8s5jQu7K77 QsjL5nSOdKFUl/vGIAcmDAPMQrRhZLDdQWAHioEu136+SUcF9CK6ojStjPXWFenXTgMP ighA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1706032730; x=1706637530; 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=dGr8UEj+GeDznGggoy8nDEdp9bdOs3Q9xWnLvU7iQs+t8o14V+v5zmbhGegDkhfpf3 boaN8KDkjDf8obQAv/u2Ac7tE0b8c5Z2E4khZ3co94Vzuifk+rYlsmw64ulzgCrDcmI6 8x582r2iSgiQMRO//GLxgzbsNA/FRsLcfyIIEnvL+1TmcasiclYxraLdtJAl4xkJCViS +YfJT9YXrJTB20Mf58OkriHSAwzp5wQn120e6q6tLsnoe1hdHmsHdmrHQOU+7VspmKc6 TBwSiPSncb0sFeg2ktBElTT3NF4Z8FG0cMfhtdXBpJ3iXn+2UAKMDc+PiBYvk8HtlMtH r2XA== X-Gm-Message-State: AOJu0YwGZKangg3Mc5axvHmG77G/eV5ZiGgKr3ih5Zmq0FHydi7MzI4f qCsVaGQGICZ6t/tzlGmAPsHFxXEoFaY/PbGppx1qe5VL0Ym2Udc+F/cJvM1oe7cM3vySHAK6HT7 iHl+PKaq0+A== X-Google-Smtp-Source: AGHT+IG93r/7oeAhZ0OwBmue09OGbRjc59xhhqNmgkbkM7fhx2Zp4mdkAH40Z0xsaX6qBiDPwjmMaFKXYX4/hw== X-Received: from joshwash.sea.corp.google.com ([2620:15c:11c:202:b9a2:fa74:abc3:bc47]) (user=joshwash job=sendgmr) by 2002:a25:8142:0:b0:dc2:550b:a4f4 with SMTP id j2-20020a258142000000b00dc2550ba4f4mr2955238ybm.1.1706032729828; Tue, 23 Jan 2024 09:58:49 -0800 (PST) Date: Tue, 23 Jan 2024 09:58:27 -0800 In-Reply-To: <20240123175831.3219292-1-joshwash@google.com> Mime-Version: 1.0 References: <20240123175831.3219292-1-joshwash@google.com> X-Mailer: git-send-email 2.43.0.429.g432eaa2c6b-goog Message-ID: <20240123175831.3219292-5-joshwash@google.com> Subject: [PATCH v2 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