From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by smtp.lore.kernel.org (Postfix) with ESMTP id 25FCCC53200 for ; Wed, 29 Jul 2026 17:59:26 +0000 (UTC) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id DAE4F40DDB; Wed, 29 Jul 2026 19:57:48 +0200 (CEST) Received: from mail-pg1-f176.google.com (mail-pg1-f176.google.com [209.85.215.176]) by mails.dpdk.org (Postfix) with ESMTP id 3DB5740BA0 for ; Wed, 29 Jul 2026 19:57:41 +0200 (CEST) Received: by mail-pg1-f176.google.com with SMTP id 41be03b00d2f7-c9cf07d2df6so906769a12.2 for ; Wed, 29 Jul 2026 10:57:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=networkplumber-org.20251104.gappssmtp.com; s=20251104; t=1785347860; x=1785952660; darn=dpdk.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:content-type; bh=AutbEqXNQU9LPX5AmSCbzwCNp+NpT+lVDpgLHM8sOzo=; b=RG9jfebVi7KCtI7tJT8TUaXIIMv8MAmEc8QlPnHxj8QH6TWlesnLNrSdBnaujF7sSm 1AmtXxhjo9lJ8YC8qh9rmZiHpYRUwfDAL2gfBcLVODDHsTVBerH8Jq2NSFXQkjAtpxe9 b6U7Dhq6wTpg799BLsXZH03hKL8SkiPlkDIqV0RdC6auSGr6KTPH2ApFGHDeWfa8ndic rZRt74OJ6DnK71zafrBkympeK4xv/+Pijg5Q4vt+kyWNvEF0zNzv5BVLcUm5Fya+ryj5 kPFfIQx89bOpfFcNKfUExppZu3hdYKHf7WouF/8wyLBGiW8eOARRwa/hoRJZvREpA8Z6 a1gQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1785347860; x=1785952660; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to:content-type; bh=AutbEqXNQU9LPX5AmSCbzwCNp+NpT+lVDpgLHM8sOzo=; b=J9Pwhhfj7a7BRdEbssjPLZblmof6vswRCPLW0sdp/OS4WKqXOLIWkxo3ilXoe5sefJ GHAF0sBUxqGoWK88KjnablALxNISg1FFcIhkXtMQlI0SNAukeLNIX1rF57jzvbOlAa91 6v89JMnY2nxUSgwm6yBKfdoHo47HNBWr0/5+MF3MDa3equq4DzGqm7Sg2jbQnXHG0Ylg 0kFoCHBYGmorZSf4xbetgl7y640ubcapcAwHzLgHdSc+DckKGxybwANwp8xFJODLgsnc HLi1SVJRjt+gfYHkcr1jaB0aGWqQaVR+5z1RDdEbwqVe5Maq8pEUB3iw1K6WYcV0LFKF 9W7A== X-Gm-Message-State: AOJu0YwYzMwbJcbhcNn+VIJGCLqSXYdR53ttQimEwIwCTR0IwcBV3QAU ckhq7/6HrljtAcYytBr2qiklDD1styXkcRDroJ0XAVi0nSv0EcCgph5sXgtGklolsjGAwlX/Ppe RvZmQ X-Gm-Gg: AR+sD12do6umGPKAcNPxGpp56E6Sk+LmJn5iDT27O2UDlqCxO4O3dVj2b5OiWn3RKAB XOj01KvEuz3w1cjyIYDg/n/8C4JzM7txyLZPfm+T71V1v1qOO7H9CdmhLwwpuhxChxMQwr3FB+X /7ABjGTTubIRHd5O4H0RJNpMjHRZRmYiObSalnbdguN8SzLbPtneX0SSJTtw9Sbbg+9PFJ3NioN O0yEP3qdfAuMI5SjdY3RXEouQYud38CC+jnyK7E/HgavSvHd/KoR9xOJInOY/Qzg7F7m9olXPSP QK5x/B5B1ZC7srabz6dG2I2H3hqfh8nXOXt0jodTQKxqiC1EqGG91KISCSbhuPsukcVTmGFotyR SE619lem7j5bMlw4NR03mmr5WTox9r6EYdPbp6zMTZ/9a1qnsO+nd9Tvc2NJvhIk7yLJLVNHewp oh3rQq8bGiOBq9KR88FMqA30u+EthCn4hR76D/Rh+Tjv1iW15HZr80myfUsadIg8P4A5w1cs5vM xYvHN8Ep9om+xlKjjs0nf7m22IuHLa/nEoKVQ== X-Received: by 2002:a05:6a21:4cca:b0:3bf:b60b:da95 with SMTP id adf61e73a8af0-3c8ba66a166mr9260054637.60.1785347860449; Wed, 29 Jul 2026 10:57:40 -0700 (PDT) Received: from phoenix.lan (204-195-96-226.wavecable.com. [204.195.96.226]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-31504b15f77sm13111562eec.4.2026.07.29.10.57.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 29 Jul 2026 10:57:40 -0700 (PDT) From: Stephen Hemminger To: dev@dpdk.org Cc: Stephen Hemminger , Harman Kalra Subject: [RFC 21/32] mempool/octeontx: use IO barrier in pool destroy Date: Wed, 29 Jul 2026 10:54:14 -0700 Message-ID: <20260729175715.165120-22-stephen@networkplumber.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260729175715.165120-1-stephen@networkplumber.org> References: <20260729175715.165120-1-stephen@networkplumber.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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 The barrier flushes outstanding writes to the FPA pool before the teardown mailbox sequence. That is ordering against the device, so use rte_io_wmb(). Control path. Signed-off-by: Stephen Hemminger --- drivers/mempool/octeontx/octeontx_fpavf.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/mempool/octeontx/octeontx_fpavf.c b/drivers/mempool/octeontx/octeontx_fpavf.c index 6cd0fc057f..7051422cb7 100644 --- a/drivers/mempool/octeontx/octeontx_fpavf.c +++ b/drivers/mempool/octeontx/octeontx_fpavf.c @@ -616,8 +616,8 @@ octeontx_fpa_bufpool_destroy(uintptr_t handle, int node_id) RTE_SET_USED(node_id); - /* Wait for all outstanding writes to be committed */ - rte_smp_wmb(); + /* Make outstanding pool writes visible to the device */ + rte_io_wmb(); if (unlikely(!octeontx_fpa_handle_valid(handle))) return -EINVAL; -- 2.53.0