From patchwork Thu May 9 20:50:54 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Joe Damato X-Patchwork-Id: 13660412 Received: from mail-pf1-f180.google.com (mail-pf1-f180.google.com [209.85.210.180]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 61A3B38DC7 for ; Thu, 9 May 2024 20:51:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.180 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715287870; cv=none; b=F2nOLZRnADhW/ao78JJqFvVMIwsDXYvJVxoohPkZNWmE7kHv9FA/42R5XFU/eKGszh0O83oi7OnMapY/OgEzRfmkZUdY1Hg5xxLRxPbJpxHBc4xoiNst/iVW3il1XS4/r5fgMGIFpP9eCrK/CI0jLDegD6PRYCn9wHZy4Yl/mQU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715287870; c=relaxed/simple; bh=AO4ibM0f40u0LST8xsBvynBO/brqWCLwYZxK5Wpm0nw=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=foLUR8XmC7vluHCBqtLOHjSkC368JjBtO0QMBzhpzlZKj274p/L8sQsSlTWXtQugqmr5Ck5ATKbFkchGfcrwQ+mJ+a3zTGt7WouvXQ8bwewo4oki9lj+Bqy0bmAIMQNgJRu+/bMQ+P9Pgd4/p8X6eSrmCyNLjDFTl+ndcVyJKfY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=fastly.com; spf=pass smtp.mailfrom=fastly.com; dkim=pass (1024-bit key) header.d=fastly.com header.i=@fastly.com header.b=Ed67/4tf; arc=none smtp.client-ip=209.85.210.180 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=fastly.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=fastly.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=fastly.com header.i=@fastly.com header.b="Ed67/4tf" Received: by mail-pf1-f180.google.com with SMTP id d2e1a72fcca58-6edc61d0ff6so1197103b3a.2 for ; Thu, 09 May 2024 13:51:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fastly.com; s=google; t=1715287866; x=1715892666; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=mK9jRCqJy/IAjt4V55hSSH/H3KvUaHNlqx/4tUOcg/w=; b=Ed67/4tfRKob+rHwqlGfFIl6bqdWmz9So+IxPDc4LHg5gndY/4YzTkAYeIdM4Tp9Yk OrrehrbByqoUzvelU3q/x5TzL98DIlmdYARhEYkZnbXNhud9tvOvxMhnphWq5Taxcb7P tzRfNG/9JxVKihzIGfjBgX1vUmbScnaNzEhuE= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1715287866; x=1715892666; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=mK9jRCqJy/IAjt4V55hSSH/H3KvUaHNlqx/4tUOcg/w=; b=FlF/wUIj9iuvau0OqJpbynSUnCDHmQvBzkA/IJiScmrRGHWjFa3vtpb583piMyk5AJ +bpg0jCC0rDXkuaJ39lPwdfAK4KL/q2bcT3Ymc1AT+7HQ0Vem4zIwvOCqbj8n2OgZ1lx +bfvwaGumwqJOkwvK/Ik4SMZKhZX09nJsdFr3SX/MEz4NWyAsiqpvr7APPC0RKiFDy7S 8EakMpWvenWb6Ok9DBah2MvmOx+bhMakf9KCjIxtVJ6QNpSrx9PCzqNri1vrDkq4Hr86 McsR/fHdE+puXmE64Obav4ElhWeurumbm7FU9jJBdr3G4mkyBi5J7U3RE8NFM91Swe5X lv0Q== X-Forwarded-Encrypted: i=1; AJvYcCW4V256tkCV2F+KC82GSwiY2XDDiBZgt92Km+oDOcGXQjRaBwW3koYZX2Az+Ne00wZn7xx/PUL0Lp3OXGr2rvwOorzG1TJjcKDlsA== X-Gm-Message-State: AOJu0YybTKYSSt1pt5cV7DU8X3epoSop8uc3bzplpo20mSoxVnRjA042 dBFkk0YzufPkF636Df2axo8qxLlQulPnA/JL6cxPFHZR0di2KHMeKC5bvFWAIaw= X-Google-Smtp-Source: AGHT+IHla1dQrim4j3USXrIXGvmfovYHjmRSCd80Xn+OwNzfQ8XNKU71RDvgr85iegLA1EQwUc2zpw== X-Received: by 2002:a05:6a21:99aa:b0:1af:7180:494f with SMTP id adf61e73a8af0-1afde1b6f3dmr1283476637.41.1715287865782; Thu, 09 May 2024 13:51:05 -0700 (PDT) Received: from localhost.localdomain ([2620:11a:c019:0:65e:3115:2f58:c5fd]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-1ef0badb959sm18677365ad.85.2024.05.09.13.51.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 09 May 2024 13:51:05 -0700 (PDT) From: Joe Damato To: linux-kernel@vger.kernel.org, netdev@vger.kernel.org Cc: mkarsten@uwaterloo.ca, nalramli@fastly.com, Joe Damato , Tariq Toukan , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , linux-rdma@vger.kernel.org (open list:MELLANOX MLX4 core VPI driver) Subject: [PATCH net-next v4 1/3] net/mlx4: Track RX allocation failures in a stat Date: Thu, 9 May 2024 20:50:54 +0000 Message-Id: <20240509205057.246191-2-jdamato@fastly.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240509205057.246191-1-jdamato@fastly.com> References: <20240509205057.246191-1-jdamato@fastly.com> Precedence: bulk X-Mailing-List: linux-rdma@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 mlx4_en_alloc_frags currently returns -ENOMEM when mlx4_alloc_page fails but does not increment a stat field when this occurs. A new field called alloc_fail has been added to struct mlx4_en_rx_ring which is now incremented in mlx4_en_rx_ring when -ENOMEM occurs. Signed-off-by: Joe Damato Tested-by: Martin Karsten --- drivers/net/ethernet/mellanox/mlx4/en_rx.c | 4 +++- drivers/net/ethernet/mellanox/mlx4/mlx4_en.h | 1 + 2 files changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/mellanox/mlx4/en_rx.c b/drivers/net/ethernet/mellanox/mlx4/en_rx.c index 8328df8645d5..15c57e9517e9 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_rx.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_rx.c @@ -82,8 +82,10 @@ static int mlx4_en_alloc_frags(struct mlx4_en_priv *priv, for (i = 0; i < priv->num_frags; i++, frags++) { if (!frags->page) { - if (mlx4_alloc_page(priv, frags, gfp)) + if (mlx4_alloc_page(priv, frags, gfp)) { + ring->alloc_fail++; return -ENOMEM; + } ring->rx_alloc_pages++; } rx_desc->data[i].addr = cpu_to_be64(frags->dma + diff --git a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h index efe3f97b874f..cd70df22724b 100644 --- a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h +++ b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h @@ -355,6 +355,7 @@ struct mlx4_en_rx_ring { unsigned long xdp_tx; 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Miller" , Eric Dumazet , Paolo Abeni , linux-rdma@vger.kernel.org (open list:MELLANOX MLX4 core VPI driver) Subject: [PATCH net-next v4 2/3] net/mlx4: link NAPI instances to queues and IRQs Date: Thu, 9 May 2024 20:50:55 +0000 Message-Id: <20240509205057.246191-3-jdamato@fastly.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240509205057.246191-1-jdamato@fastly.com> References: <20240509205057.246191-1-jdamato@fastly.com> Precedence: bulk X-Mailing-List: linux-rdma@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Make mlx4 compatible with the newly added netlink queue GET APIs. Signed-off-by: Joe Damato Tested-by: Martin Karsten Acked-by: Jakub Kicinski --- drivers/net/ethernet/mellanox/mlx4/en_cq.c | 14 ++++++++++++++ drivers/net/ethernet/mellanox/mlx4/mlx4_en.h | 1 + 2 files changed, 15 insertions(+) diff --git a/drivers/net/ethernet/mellanox/mlx4/en_cq.c b/drivers/net/ethernet/mellanox/mlx4/en_cq.c index 1184ac5751e1..461cc2c79c71 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_cq.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_cq.c @@ -126,6 +126,7 @@ int mlx4_en_activate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq, cq_idx = cq_idx % priv->rx_ring_num; rx_cq = priv->rx_cq[cq_idx]; cq->vector = rx_cq->vector; + irq = mlx4_eq_get_irq(mdev->dev, cq->vector); } if (cq->type == RX) @@ -142,18 +143,23 @@ int mlx4_en_activate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq, if (err) goto free_eq; + cq->cq_idx = cq_idx; cq->mcq.event = mlx4_en_cq_event; switch (cq->type) { case TX: cq->mcq.comp = mlx4_en_tx_irq; netif_napi_add_tx(cq->dev, &cq->napi, mlx4_en_poll_tx_cq); + netif_napi_set_irq(&cq->napi, irq); napi_enable(&cq->napi); + netif_queue_set_napi(cq->dev, cq_idx, NETDEV_QUEUE_TYPE_TX, &cq->napi); break; case RX: cq->mcq.comp = mlx4_en_rx_irq; netif_napi_add(cq->dev, &cq->napi, mlx4_en_poll_rx_cq); + netif_napi_set_irq(&cq->napi, irq); napi_enable(&cq->napi); + netif_queue_set_napi(cq->dev, cq_idx, NETDEV_QUEUE_TYPE_RX, &cq->napi); break; case TX_XDP: /* nothing regarding napi, it's shared with rx ring */ @@ -189,6 +195,14 @@ void mlx4_en_destroy_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq **pcq) void mlx4_en_deactivate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq) { if (cq->type != TX_XDP) { + enum netdev_queue_type qtype; + + if (cq->type == RX) + qtype = NETDEV_QUEUE_TYPE_RX; + else + qtype = NETDEV_QUEUE_TYPE_TX; + + netif_queue_set_napi(cq->dev, cq->cq_idx, qtype, NULL); napi_disable(&cq->napi); netif_napi_del(&cq->napi); } diff --git a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h index cd70df22724b..28b70dcc652e 100644 --- a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h +++ b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h @@ -380,6 +380,7 @@ struct mlx4_en_cq { #define MLX4_EN_OPCODE_ERROR 0x1e const struct cpumask *aff_mask; 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Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , linux-rdma@vger.kernel.org (open list:MELLANOX MLX4 core VPI driver) Subject: [PATCH net-next v4 3/3] net/mlx4: support per-queue statistics via netlink Date: Thu, 9 May 2024 20:50:56 +0000 Message-Id: <20240509205057.246191-4-jdamato@fastly.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240509205057.246191-1-jdamato@fastly.com> References: <20240509205057.246191-1-jdamato@fastly.com> Precedence: bulk X-Mailing-List: linux-rdma@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Make mlx4 compatible with the newly added netlink queue stats API. Signed-off-by: Joe Damato Tested-by: Martin Karsten --- .../net/ethernet/mellanox/mlx4/en_netdev.c | 73 +++++++++++++++++++ 1 file changed, 73 insertions(+) diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c index 4c089cfa027a..fd79e957b5d8 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c @@ -43,6 +43,7 @@ #include #include #include +#include #include #include @@ -3099,6 +3100,77 @@ void mlx4_en_set_stats_bitmap(struct mlx4_dev *dev, last_i += NUM_PHY_STATS; } +static void mlx4_get_queue_stats_rx(struct net_device *dev, int i, + struct netdev_queue_stats_rx *stats) +{ + struct mlx4_en_priv *priv = netdev_priv(dev); + const struct mlx4_en_rx_ring *ring; + + spin_lock_bh(&priv->stats_lock); + + if (!priv->port_up || mlx4_is_master(priv->mdev->dev)) + goto out_unlock; + + ring = priv->rx_ring[i]; + stats->packets = READ_ONCE(ring->packets); + stats->bytes = READ_ONCE(ring->bytes); + stats->alloc_fail = READ_ONCE(ring->alloc_fail); + +out_unlock: + spin_unlock_bh(&priv->stats_lock); +} + +static void mlx4_get_queue_stats_tx(struct net_device *dev, int i, + struct netdev_queue_stats_tx *stats) +{ + struct mlx4_en_priv *priv = netdev_priv(dev); + const struct mlx4_en_tx_ring *ring; + + spin_lock_bh(&priv->stats_lock); + + if (!priv->port_up || mlx4_is_master(priv->mdev->dev)) + goto out_unlock; + + ring = priv->tx_ring[TX][i]; + stats->packets = READ_ONCE(ring->packets); + stats->bytes = READ_ONCE(ring->bytes); + +out_unlock: + spin_unlock_bh(&priv->stats_lock); +} + +static void mlx4_get_base_stats(struct net_device *dev, + struct netdev_queue_stats_rx *rx, + struct netdev_queue_stats_tx *tx) +{ + struct mlx4_en_priv *priv = netdev_priv(dev); + + spin_lock_bh(&priv->stats_lock); + + if (!priv->port_up || mlx4_is_master(priv->mdev->dev)) + goto out_unlock; + + if (priv->rx_ring_num) { + rx->packets = 0; + rx->bytes = 0; + rx->alloc_fail = 0; + } + + if (priv->tx_ring_num[TX]) { + tx->packets = 0; + tx->bytes = 0; + } + +out_unlock: + spin_unlock_bh(&priv->stats_lock); +} + +static const struct netdev_stat_ops mlx4_stat_ops = { + .get_queue_stats_rx = mlx4_get_queue_stats_rx, + .get_queue_stats_tx = mlx4_get_queue_stats_tx, + .get_base_stats = mlx4_get_base_stats, +}; + int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port, struct mlx4_en_port_profile *prof) { @@ -3262,6 +3334,7 @@ int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port, netif_set_real_num_tx_queues(dev, priv->tx_ring_num[TX]); netif_set_real_num_rx_queues(dev, priv->rx_ring_num); + dev->stat_ops = &mlx4_stat_ops; dev->ethtool_ops = &mlx4_en_ethtool_ops; /*