From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by dpdk.org (Postfix) with ESMTP id 0AFE15F33 for ; Thu, 31 May 2018 18:32:58 +0200 (CEST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by orsmga102.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 31 May 2018 09:32:57 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.49,463,1520924400"; d="scan'208";a="53770466" Received: from fyigit-mobl.ger.corp.intel.com (HELO [10.237.221.77]) ([10.237.221.77]) by FMSMGA003.fm.intel.com with ESMTP; 31 May 2018 09:32:56 -0700 To: Radu Nicolau , dev@dpdk.org Cc: declan.doherty@intel.com References: <1527777275-9974-1-git-send-email-radu.nicolau@intel.com> <2d1f24aa-b752-5031-f063-1394c47d64ff@intel.com> <2c61f454-9c44-39d3-3258-3f894175186d@intel.com> <0cbf7312-4d54-3240-82a8-239c34fc8005@intel.com> From: Ferruh Yigit Openpgp: preference=signencrypt Autocrypt: addr=ferruh.yigit@intel.com; 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WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.8.0 MIME-Version: 1.0 In-Reply-To: <0cbf7312-4d54-3240-82a8-239c34fc8005@intel.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Subject: Re: [dpdk-dev] [PATCH v2] net/bonding: fix update link status on slave add 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: Thu, 31 May 2018 16:32:59 -0000 On 5/31/2018 5:13 PM, Radu Nicolau wrote: > > > On 5/31/2018 4:36 PM, Ferruh Yigit wrote: >> On 5/31/2018 4:34 PM, Ferruh Yigit wrote: >>> On 5/31/2018 3:34 PM, Radu Nicolau wrote: >>> >>> I can see you just prefix "fix" to the title without updating it :) >>> >>> What about following one: >>> "net/bonding: fix slave add for mode 4" ? > Great, I'll use it for v3 :) > >>> >>>> Add a call to rte_eth_link_get_nowait on every slave to update >>>> the internal link status struct. Otherwise slave add will fail >>>> for mode 4 if the ports are all stopped but only one of them checked. >>> What is the link related expectation from slaves in mode 4? > To be identical across all ports >>> >>> What does "if the ports are all stopped but only one of them checked" mean, why >>> checking only one of them? > This is the behavior of testpmd, stop getting the link status after the > first down port; but this should not affect bonding, so there is no need > to update testpmd. I see, when this link updating happens in this bonding issue context? When bonding device created? Should we update testpmd behavior too? > >>> >>>> Fixes: b77d21cc2364 ("ethdev: add link status get/set helper functions") >>>> Bugzilla entry: https://dpdk.org/tracker/show_bug.cgi?id=52 >> Bugzilla ID: 52 >> >> btw, can you please send new version as reply to previous version? > Sure. > >> >>>> Signed-off-by: Radu Nicolau >>>> --- >>>> v2: add fix and Bugzilla references >>>> >>>> drivers/net/bonding/rte_eth_bond_api.c | 2 ++ >>>> 1 file changed, 2 insertions(+) >>>> >>>> diff --git a/drivers/net/bonding/rte_eth_bond_api.c b/drivers/net/bonding/rte_eth_bond_api.c >>>> index d558df8..cad08b9 100644 >>>> --- a/drivers/net/bonding/rte_eth_bond_api.c >>>> +++ b/drivers/net/bonding/rte_eth_bond_api.c >>>> @@ -296,6 +296,8 @@ __eth_bond_slave_add_lock_free(uint16_t bonded_port_id, uint16_t slave_port_id) >>>> return -1; >>>> } >>>> >>>> + rte_eth_link_get_nowait(slave_port_id, &link_props); >>>> + >>> The error seems in link_properties_valid(), does it make sense to get link info >>> inside that function before link checks? > Not really, as one might expect that link_properties_valid will only > test the struct rte_eth_link *slave_link argument, not update it. Fair enough, I just thought to be sure the tested link is up to date, but that function seems only called by __eth_bond_slave_add_lock_free() which you are updating, so this is ok. > >>> >>>> slave_add(internals, slave_eth_dev); >>>> >>>> /* We need to store slaves reta_size to be able to synchronize RETA for all >>>> >