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 D63D043C94; Tue, 12 Mar 2024 19:10:04 +0100 (CET) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 43B9642E8C; Tue, 12 Mar 2024 19:08:26 +0100 (CET) Received: from smtp-fw-52005.amazon.com (smtp-fw-52005.amazon.com [52.119.213.156]) by mails.dpdk.org (Postfix) with ESMTP id C702D42E00 for ; Tue, 12 Mar 2024 19:08:20 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amazon.com; i=@amazon.com; q=dns/txt; s=amazon201209; t=1710266901; x=1741802901; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version; bh=xcqI7RwpJElhtFuceQzDmvHSLRqzymfwaBoNapYdKbA=; b=p3qhBgo6OX7lQLXhaC/1Ha/c85RVnh6ViY0Gcu5HkiK0kjJuLU3Y8TQ3 gpbSEF3pGDLvUDadpDBiG2N99kxnr9vsx1Z3YmAZ9SsRIYdmUcunNLzoo rQhCkFM7WP2FDOOSlquRWHG5wS3V8GWOVDqCavHMSlSCtOATeshk7JcNL Y=; X-IronPort-AV: E=Sophos;i="6.07,119,1708387200"; d="scan'208";a="640378461" Received: from iad12-co-svc-p1-lb1-vlan3.amazon.com (HELO smtpout.prod.us-west-2.prod.farcaster.email.amazon.dev) ([10.43.8.6]) by smtp-border-fw-52005.iad7.amazon.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Mar 2024 18:08:20 +0000 Received: from EX19MTAEUA002.ant.amazon.com [10.0.43.254:18893] by smtpin.naws.eu-west-1.prod.farcaster.email.amazon.dev [10.0.26.159:2525] with esmtp (Farcaster) id f03e0ddf-c187-426e-be76-bcc56409a9fc; Tue, 12 Mar 2024 18:08:19 +0000 (UTC) X-Farcaster-Flow-ID: f03e0ddf-c187-426e-be76-bcc56409a9fc Received: from EX19D007EUB002.ant.amazon.com (10.252.51.117) by EX19MTAEUA002.ant.amazon.com (10.252.50.126) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1258.28; Tue, 12 Mar 2024 18:08:18 +0000 Received: from EX19MTAUWA001.ant.amazon.com (10.250.64.204) by EX19D007EUB002.ant.amazon.com (10.252.51.117) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1258.28; Tue, 12 Mar 2024 18:08:18 +0000 Received: from HFA15-CG15235BS.amazon.com (10.85.143.174) by mail-relay.amazon.com (10.250.64.204) with Microsoft SMTP Server id 15.2.1258.28 via Frontend Transport; Tue, 12 Mar 2024 18:08:17 +0000 From: To: CC: , Shai Brandes Subject: [PATCH v4 25/31] net/ena/base: modify customer metrics memory management Date: Tue, 12 Mar 2024 20:07:10 +0200 Message-ID: <20240312180716.8515-26-shaibran@amazon.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240312180716.8515-1-shaibran@amazon.com> References: <20240312180716.8515-1-shaibran@amazon.com> MIME-Version: 1.0 Content-Type: text/plain 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 From: Shai Brandes 1. Set buffer length to zero in case memory allocation failed and after memory is released. 2. The driver checks buffer_virt_addr for customer allocation success. In case the allocation fails, buffer_virt_addr may not necessarily be NULL. Signed-off-by: Shai Brandes Reviewed-by: Amit Bernstein --- drivers/net/ena/base/ena_com.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/net/ena/base/ena_com.c b/drivers/net/ena/base/ena_com.c index 2db21e7895..24756e5e76 100644 --- a/drivers/net/ena/base/ena_com.c +++ b/drivers/net/ena/base/ena_com.c @@ -3233,13 +3233,17 @@ int ena_com_allocate_customer_metrics_buffer(struct ena_com_dev *ena_dev) struct ena_customer_metrics *customer_metrics = &ena_dev->customer_metrics; customer_metrics->buffer_len = ENA_CUSTOMER_METRICS_BUFFER_SIZE; + customer_metrics->buffer_virt_addr = NULL; + ENA_MEM_ALLOC_COHERENT(ena_dev->dmadev, customer_metrics->buffer_len, customer_metrics->buffer_virt_addr, customer_metrics->buffer_dma_addr, customer_metrics->buffer_dma_handle); - if (unlikely(!customer_metrics->buffer_virt_addr)) + if (unlikely(!customer_metrics->buffer_virt_addr)) { + customer_metrics->buffer_len = 0; return ENA_COM_NO_MEM; + } return 0; } @@ -3283,6 +3287,7 @@ void ena_com_delete_customer_metrics_buffer(struct ena_com_dev *ena_dev) customer_metrics->buffer_dma_addr, customer_metrics->buffer_dma_handle); customer_metrics->buffer_virt_addr = NULL; + customer_metrics->buffer_len = 0; } } -- 2.17.1