From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ua0-f176.google.com (mail-ua0-f176.google.com [209.85.217.176]) by dpdk.org (Postfix) with ESMTP id C4B5499B6 for ; Fri, 26 May 2017 05:54:40 +0200 (CEST) Received: by mail-ua0-f176.google.com with SMTP id e28so126379500uah.0 for ; Thu, 25 May 2017 20:54:40 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=os-korea-ac-kr.20150623.gappssmtp.com; s=20150623; h=mime-version:from:date:message-id:subject:to; bh=otV+Mw88ykPayweBWhdbxn6kNqpFDaYu4lC+mXE/vo8=; b=quTI6V6RC84me5GwChkjvte+Nmf0EiGxjfUQoh0VzU9yORkw7HC16eJHT2QQrv9O/v /PofICcH1wjZQnS9MnNOP0I+yMBWXWTXnhKEtJ/WbAmo/tXZ6AUEJ4QhuCm8qzdwb4tu wPRfq3XgumyQ1DZYfEJalCHBy8CcCj0BIFFCBMZL4tjyK22AlviQTiYpu5qzqy6eQQwR eI1aflPu5+apjX1XLT1f3dZ3a5OnfZAPYnRZfP2jmtMCuBqFVLbDyaEqzM0IDkjfdQjq oO9n6DqDcU4+ny8v9wEPpL5+h4nIXB3AkjCDdThF6LRkZ6O2lnJDDiJi2+g3atv2clnr YrsA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=otV+Mw88ykPayweBWhdbxn6kNqpFDaYu4lC+mXE/vo8=; b=YPd0tqaTOP6C0WCDpJzGE4TtL03zmZ+v+7Ry4vjEN7Eaoprg9mjU+YUONamwNeTKUY XcMGS2bqRKONqYb8mKKQ7Yxj0kTioB+HWfqBIaLLTQ35O7EtW4/z+ci+4eQDzTfTRmph bVWr0cqZ6GQg27uHpIghAaP3KWqWkqVvvAxklhBnHdTjoffUZZ9vP+26Hy2Xv/BcuuMy 5+6hPOxuVRqnMe8n65CdG2RpT8rIKBFKUFRk9Mw9v+1KIxvA5hRkjk/xpjGL+98ktPpe EhQCjRrfIzvuJjX7rwd8fgKNmtT5dBKfP8DEWbDeaaU3kKwwdKX+zhzviNE/gMdrq9N1 mcfg== X-Gm-Message-State: AODbwcC12yewS+PCM2o3djpdT3TcfMSD8l1wEmnGXAvvHH7T9SsqxrsF fPgX/mMoGSp1DtFJT3QIVIztD5Q6xDnakl8= X-Received: by 10.176.79.133 with SMTP id m5mr20150117uah.62.1495770879784; Thu, 25 May 2017 20:54:39 -0700 (PDT) MIME-Version: 1.0 Received: by 10.31.180.129 with HTTP; Thu, 25 May 2017 20:54:39 -0700 (PDT) From: Heung Sik Choi Date: Fri, 26 May 2017 12:54:39 +0900 Message-ID: To: dev@dpdk.org Content-Type: text/plain; charset="UTF-8" X-Content-Filtered-By: Mailman/MimeDel 2.1.15 Subject: [dpdk-dev] Is it possible to make softrss value be same with NIC RSS value? X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 26 May 2017 03:54:41 -0000 Hi, I study hash optimization in network, and I know that rte_softrss() function in DPDK lib(rte_thash.h) which implements RSS. And then, I guess that its value is same with NIC RSS(hardware). I get NIC RSS by call 'le32_to_cpu(rx_desc->wb.lower.hi_dword.rss)'; However, I printed NIC RSS's value and Soft RSS value, and two values is different. I thought that because of little endian, they are different. So I change the call with 'be32_to_cpu(rx_desc->wb.lower.hi_dword.rss)'. But, the result is same Is my guess wrong? Please let me know if you have any insights.