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Nov 2019 04:40:07 -0800 To: Ferruh Yigit , Chas Williams CC: , , Declan Doherty References: <1574154221-8628-1-git-send-email-arybchenko@solarflare.com> <873a52fd-7108-5428-1ce1-1bb82c023bb0@intel.com> From: Andrew Rybchenko Openpgp: preference=signencrypt Autocrypt: addr=arybchenko@solarflare.com; keydata= mQINBF2681gBEACbdTxu8eLL3UX2oAelsnK9GkeaJeUYSOHPJQpV7RL/iaIskqTwBRnhjXt7 j9UEwGA+omnOmqQMpeQTb/F9Ma2dYE+Hw4/t/1KVjxr3ehFaASvwR4fWJfO4e2l/Rk4rG6Yi 5r6CWU2y8su2654Fr8KFc+cMGOAgKoZTZHZsRy5lHpMlemeF+VZkv8L5sYJWPnsypgqlCG3h v6lbtfZs+QqYbFH6bqoZwBAl5irmxywGR7ZJr1GLUZZ1lfdazSY8r6Vz0/Ip/KVxGu2uxo81 QCsAj0ZsQtwji9Sds/prTiPrIjx8Fc/tfbnAuVuPcnPbczwCJACzQr4q26XATL3kVuZhSBWh 4XfO/EAUuEq5AemUG5DDTM87g7Lp4eT9gMZB6P+rJwWPNWTiV3L7Cn+fO+l9mTPnOqdzBgDe OaulKiNSft1o0DY4bGzOmM2ad2cZt0jfnbMPMTE9zsr6+RFa+M8Ct20o6U1MUE4vP6veErMK of4kZ8PdoMM+Sq1hxMPNtlcVBSP9xMmdSZPlfDYI5VWosOceEcz7XZdjBJKdwKuz70V7eac4 ITSxgNFCTbeJ03zL2MR5s0IvD9ghISAwZ6ieCjU5UATn5+63qpD0nVNLsAdb/UpfvQcKAmvj 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Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.9.0 MIME-Version: 1.0 In-Reply-To: <873a52fd-7108-5428-1ce1-1bb82c023bb0@intel.com> Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Content-Language: en-GB X-Originating-IP: [91.220.146.112] X-ClientProxiedBy: ocex03.SolarFlarecom.com (10.20.40.36) To ocex03.SolarFlarecom.com (10.20.40.36) X-TM-AS-Product-Ver: SMEX-12.5.0.1300-8.5.1010-25050.005 X-TM-AS-Result: No-1.803700-4.000000-10 X-TMASE-MatchedRID: QW5G6BKkLTrmLzc6AOD8DfHkpkyUphL9Wt0oPygerN1SMUnCl2ZytD7F nCrEJ7NN7T7/ryviZZ1PTO2RHPnaI8KfN8lhf0yuqJSK+HSPY+/pVMb1xnESMgdkFovAReUogK6 qCGa1Z9dizDHYXsjKMiJ1igIe5xA1UanpLPx8+Soc9jA4mLo8uQ/o5bNHEsCTfE7unL5EELyhPT x3lW8C2YP69u3U5O/3k77j4nUrfkCwoGduGry7icEvKlG0CjjI+yx8oDl9BLzC5WJY5gX2XKPFj JEFr+olA9Mriq0CDAiWc/0wwBlx2lZ0V5tYhzdWxEHRux+uk8ifEzJ5hPndGV42hm8QY/VM8nLS aI+Iq/Q2tY3G5k9Xeby57UT6sEDfBQC4P5Ha5M3YIraeIhqiAHC4IiYAuwHimThjoiYD+FTSjJ1 UN5eEFtQ17CngTb9OBKmZVgZCVnezGTWRXUlrxxtsJUxyzWNSVlxr1FJij9s= X-TM-AS-User-Approved-Sender: No X-TM-AS-User-Blocked-Sender: No X-TMASE-Result: 10--1.803700-4.000000 X-TMASE-Version: SMEX-12.5.0.1300-8.5.1010-25050.005 X-MDID: 1574167218-k4UIHvFSAwJV Subject: Re: [dpdk-dev] [dpdk-stable] [PATCH] net/bonding: do not inherit slave device configuration 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 11/19/19 3:18 PM, Ferruh Yigit wrote: > On 11/19/2019 9:03 AM, Andrew Rybchenko wrote: >> Bonding device should control bonded devices configuration. >> >> Also avoid usage of slave's data->dev_conf. >> >> Fixes: 2efb58cbab6e ("bond: new link bonding library") >> Cc: stable@dpdk.org >> >> Signed-off-by: Andrew Rybchenko >> --- >> drivers/net/bonding/rte_eth_bond_pmd.c | 24 ++++++++++++------------ >> 1 file changed, 12 insertions(+), 12 deletions(-) >> >> diff --git a/drivers/net/bonding/rte_eth_bond_pmd.c b/drivers/net/bonding/rte_eth_bond_pmd.c >> index 707a0f3cdd..4f0e83205d 100644 >> --- a/drivers/net/bonding/rte_eth_bond_pmd.c >> +++ b/drivers/net/bonding/rte_eth_bond_pmd.c >> @@ -1679,6 +1679,7 @@ int >> slave_configure(struct rte_eth_dev *bonded_eth_dev, >> struct rte_eth_dev *slave_eth_dev) >> { >> + struct rte_eth_conf dev_conf; >> struct bond_rx_queue *bd_rx_q; >> struct bond_tx_queue *bd_tx_q; >> uint16_t nb_rx_queues; >> @@ -1693,34 +1694,34 @@ slave_configure(struct rte_eth_dev *bonded_eth_dev, >> /* Stop slave */ >> rte_eth_dev_stop(slave_eth_dev->data->port_id); >> >> + memset(&dev_conf, 0, sizeof(dev_conf)); >> + >> /* Enable interrupts on slave device if supported */ >> if (slave_eth_dev->data->dev_flags & RTE_ETH_DEV_INTR_LSC) >> - slave_eth_dev->data->dev_conf.intr_conf.lsc = 1; >> + dev_conf.intr_conf.lsc = 1; > I assume the original intention is making incremental changes to the existing > slave configuration, if so we should copy the 'slave_eth_dev->data->dev_conf' to > 'dev_conf' before start updating it. The problem is that I don't understand how incremental changes happen. It simply looks wrong or I don't understand something. It looks like it is the only place in bonding where slave configuration is done.