From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id F0FC7A00E6 for ; Mon, 8 Jul 2019 20:04:53 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id AAD431B953; Mon, 8 Jul 2019 20:04:53 +0200 (CEST) Received: from mga18.intel.com (mga18.intel.com [134.134.136.126]) by dpdk.org (Postfix) with ESMTP id 8762D397D for ; Mon, 8 Jul 2019 20:04:51 +0200 (CEST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by orsmga106.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 08 Jul 2019 11:04:48 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.63,466,1557212400"; d="scan'208";a="165525171" Received: from fyigit-mobl.ger.corp.intel.com (HELO [10.237.221.10]) ([10.237.221.10]) by fmsmga008.fm.intel.com with ESMTP; 08 Jul 2019 11:04:46 -0700 To: Krzysztof Kanas Cc: "dev@dpdk.org" , "John W. Linville" References: <20190704143905.8704-1-kkanas@marvell.com> <1c24f2ec-fe4e-0cef-2d83-0f1d139c0bf7@intel.com> <20190705093504.GA6680@kk-box-0> From: Ferruh Yigit Openpgp: preference=signencrypt Autocrypt: addr=ferruh.yigit@intel.com; prefer-encrypt=mutual; keydata= mQINBFXZCFABEADCujshBOAaqPZpwShdkzkyGpJ15lmxiSr3jVMqOtQS/sB3FYLT0/d3+bvy qbL9YnlbPyRvZfnP3pXiKwkRoR1RJwEo2BOf6hxdzTmLRtGtwWzI9MwrUPj6n/ldiD58VAGQ +iR1I/z9UBUN/ZMksElA2D7Jgg7vZ78iKwNnd+vLBD6I61kVrZ45Vjo3r+pPOByUBXOUlxp9 GWEKKIrJ4eogqkVNSixN16VYK7xR+5OUkBYUO+sE6etSxCr7BahMPKxH+XPlZZjKrxciaWQb +dElz3Ab4Opl+ZT/bK2huX+W+NJBEBVzjTkhjSTjcyRdxvS1gwWRuXqAml/sh+KQjPV1PPHF YK5LcqLkle+OKTCa82OvUb7cr+ALxATIZXQkgmn+zFT8UzSS3aiBBohg3BtbTIWy51jNlYdy ezUZ4UxKSsFuUTPt+JjHQBvF7WKbmNGS3fCid5Iag4tWOfZoqiCNzxApkVugltxoc6rG2TyX CmI2rP0mQ0GOsGXA3+3c1MCdQFzdIn/5tLBZyKy4F54UFo35eOX8/g7OaE+xrgY/4bZjpxC1 1pd66AAtKb3aNXpHvIfkVV6NYloo52H+FUE5ZDPNCGD0/btFGPWmWRmkPybzColTy7fmPaGz cBcEEqHK4T0aY4UJmE7Ylvg255Kz7s6wGZe6IR3N0cKNv++O7QARAQABtCVGZXJydWggWWln aXQgPGZlcnJ1aC55aWdpdEBpbnRlbC5jb20+iQJUBBMBCgA+AhsDAh4BAheABQkI71rKFiEE 0jZTh0IuwoTjmYHH+TPrQ98TYR8FAlznMMQFCwkIBwMFFQoJCAsFFgIDAQAACgkQ+TPrQ98T YR/B9Q//a57esjq996nfZVm7AsUl7zbvhN+Ojity25ib2gcSVVsAN2j6lcQS4hf6/OVvRj3q CgebJ4o2gXR6X12UzWBJL7NE8Xpc70MvUIe0r11ykurQ9n9jUaWMjxdSqBPF93hU+Z/MZe5M 1rW5O2VJLuTJzkDw3EYUCbHOwPjeaS8Qqj3RI0LYbGthbHBIp9CsjkgsJSjTT5GQ8AQWkE7I z+hvPx6f1rllfjxFyi4DI3jLhAI+j1Nm+l+ESyoX59HrLTHAvq4RPkLpTnGBj9gOnJ+5sVEr GE0fcffsNcuMSkpqSEoJCPAHmChoLgezskhhsy0BiU3xlSIj1Dx2XMDerUXFOK3ftlbYNRte HQy4EKubfZRB8H5Rvcpksom3fRBDcJT8zw+PTH14htRApU9f8I/RamQ7Ujks7KuaB7JX5QaG gMjfPzHGYX9PfF6KIchaFmAWLytIP1t0ht8LpJkjtvUCSQZ2VxpCXwKyUzPDIF3co3tp90o7 X07uiC5ymX0K0+Owqs6zeslLY6DMxNdt8ye+h1TVkSZ5g4dCs4C/aiEF230+luL1CnejOv/K /s1iSbXQzJNM7be3FlRUz4FdwsfKiJJF7xYALSBnSvEB04R7I2P2V9Zpudkq6DRT6HZjBeJ1 pBF2J655cdoenPBIeimjnnh4K7YZBzwOLJf2c6u76fe5Ag0EV9ZMvgEQAKc0Db17xNqtSwEv mfp4tkddwW9XA0tWWKtY4KUdd/jijYqc3fDD54ESYpV8QWj0xK4YM0dLxnDU2IYxjEshSB1T qAatVWz9WtBYvzalsyTqMKP3w34FciuL7orXP4AibPtrHuIXWQOBECcVZTTOdZYGAzaYzxiA ONzF9eTiwIqe9/oaOjTwTLnOarHt16QApTYQSnxDUQljeNvKYt1lZE/gAUUxNLWsYyTT+22/ vU0GDUahsJxs1+f1yEr+OGrFiEAmqrzpF0lCS3f/3HVTU6rS9cK3glVUeaTF4+1SK5ZNO35p iVQCwphmxa+dwTG/DvvHYCtgOZorTJ+OHfvCnSVjsM4kcXGjJPy3JZmUtyL9UxEbYlrffGPQ I3gLXIGD5AN5XdAXFCjjaID/KR1c9RHd7Oaw0Pdcq9UtMLgM1vdX8RlDuMGPrj5sQrRVbgYH fVU/TQCk1C9KhzOwg4Ap2T3tE1umY/DqrXQgsgH71PXFucVjOyHMYXXugLT8YQ0gcBPHy9mZ qw5mgOI5lCl6d4uCcUT0l/OEtPG/rA1lxz8ctdFBVOQOxCvwRG2QCgcJ/UTn5vlivul+cThi 6ERPvjqjblLncQtRg8izj2qgmwQkvfj+h7Ex88bI8iWtu5+I3K3LmNz/UxHBSWEmUnkg4fJl Rr7oItHsZ0ia6wWQ8lQnABEBAAGJAjwEGAEKACYCGwwWIQTSNlOHQi7ChOOZgcf5M+tD3xNh HwUCXOcvZgUJBvIWKAAKCRD5M+tD3xNhHxhBD/9toXMIaPIVFd9w1nKsRDM1GE6gZe4jie8q MJpeHB9O+936fSXA0W2X0het60wJQQ45O8TpTcxpc9nGzcE4MTaLAI3E8TjIXAO0cPqUNLyp g0DXezmTw5BU+SKZ51+jSKOtFmzJCHOJZQaMeCHD+G3CrdUHQVQBb5AeuH3KFv9ltgDcWsc8 YO70o3+tGHwcEnyXLdrI0q05wV7ncnLdkgVo+VUN4092bNMPwYly1TZWcU3Jw5gczOUEfTY7 sgo6E/sGX3B+FzgIs5t4yi1XOweCAQ/mPnb6uFeNENEFyGKyMG1HtjwBqnftbiFO3qitEIUY xWGQH23oKscv7i9lT0gg2D+ktzZhVWwHJVY/2vWSB9aCSWChcH2BT+lWrkwSpoPhy+almM84 Qz2wF72/d4ce4L27pSrS+vOXtXHLGOOGcAn8yr9TV0kM4aR+NbGBRXGKhG6w4lY54uNd9IBa ARIPUhij5JSygxZCBaJKo+X64AHGkk5bXq+f0anwAMNuJXbYC/lz4DEdKmPgQGShOWNs1Y1a N3cI87Hun/RBVwQ0a3Tr1g6OWJ6xK8cYbMcoR8NZ7L9ALMeJeuUDQR39+fEeHg/6sQN0P0mv 0sL+//BAJphCzDk8ztbrFw+JaPtgzZpRSM6JhxnY+YMAsatJRXA0WSpYP5zzl7yu/GZJIgsv VQ== Message-ID: <27ee549a-d01b-21a5-4a0b-a7e5594b38c0@intel.com> Date: Mon, 8 Jul 2019 19:04:46 +0100 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.7.2 MIME-Version: 1.0 In-Reply-To: <20190705093504.GA6680@kk-box-0> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Subject: Re: [dpdk-dev] [EXT] Re: [PATCH] net/af_packet: append system error to error msgs 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: , Errors-To: dev-bounces@dpdk.org Sender: "dev" On 7/5/2019 10:35 AM, Krzysztof Kanas wrote: > On 19-07-04 19:59, Ferruh Yigit wrote: >> External Email >> >> ---------------------------------------------------------------------- >> On 7/4/2019 3:39 PM, kkanas@marvell.com wrote: >>> From: Krzysztof Kanas >>> >>> Print system error to make easier diagnosis of errors with af_packet. >>> >>> Signed-off-by: Krzysztof Kanas >>> --- >>> drivers/net/af_packet/rte_eth_af_packet.c | 47 ++++++++++++----------- >>> 1 file changed, 24 insertions(+), 23 deletions(-) >>> >>> diff --git a/drivers/net/af_packet/rte_eth_af_packet.c b/drivers/net/af_packet/rte_eth_af_packet.c >>> index f396f8b22a55..94ae4b13398d 100644 >>> --- a/drivers/net/af_packet/rte_eth_af_packet.c >>> +++ b/drivers/net/af_packet/rte_eth_af_packet.c >>> @@ -13,7 +13,9 @@ >>> #include >>> #include >>> #include >>> +#include >>> >>> +#include >>> #include >>> #include >>> #include >>> @@ -605,8 +607,8 @@ rte_pmd_init_internals(struct rte_vdev_device *dev, >>> } >>> if (ioctl(sockfd, SIOCGIFINDEX, &ifr) == -1) { >>> PMD_LOG(ERR, >>> - "%s: ioctl failed (SIOCGIFINDEX)", >>> - name); >>> + "%s: ioctl failed (SIOCGIFINDEX):%s", >>> + name, rte_strerror(errno)); >> >> What do you think adding an new macro that adds ":%s, rte_strerror(errno)" part >> automatically and just change the macro on selected logs? >> > I would rather not, as adding macro adds another indirection, and the > purpose of rte_strerror(errno) was just to help debugging wrong > arguments etc.. > > Also if in macro somebody uses function that changes errno, the > rte_strerror would give bad result. I am just talking about something like "PMD_LOG_ERRNO" which appends "rte_strerror(errno)" additional to "PMD_LOG", so there is no additional indirection or there is nothing that can change "errno", so still doesn't make sense? > > But no strong opinion on above. >