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charset="iso-2022-jp" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: SN7PR11MB7139.namprd11.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 5b92aa35-f06b-48fa-6719-08db0829caae X-MS-Exchange-CrossTenant-originalarrivaltime: 06 Feb 2023 10:06:18.9852 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 46c98d88-e344-4ed4-8496-4ed7712e255d X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: 7sjeJ2ZCcKTf81l7kkDrhoHzstfOEq1CsMc753NB4UJRFkTiUmxaVaXAfSRjxd81uChhmQojjHWp8FU7tSOkkg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: SJ0PR11MB4798 X-OriginatorOrg: intel.com X-BeenThere: stable@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: patches for DPDK stable branches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: stable-bounces@dpdk.org > -----Original Message----- > From: Thomas Monjalon > Sent: 2023=1B$BG/=1B(B2=1B$B7n=1B(B6=1B$BF|=1B(B 17:16 > To: Ye, MingjinX > Cc: dev@dpdk.org; stable@dpdk.org; Zhou, YidingX > ; Yang, Qiming ; Zhang, > Qi Z ; david.marchand@redhat.com; > ferruh.yigit@amd.com > Subject: Re: [PATCH] net/ice: fix get link status timeout >=20 > 06/02/2023 09:14, Ye, MingjinX: > > From: Thomas Monjalon > > > 06/02/2023 07:22, Mingjin Ye: > > > > When hw is just started, it will immediately obtain the link > > > > status, and the longest attempt is 1 second. Some NICs are slow to > > > > initialize, which make it fails to obtain the link status. > > > > > > > > The patch fixes this issue by modifying the longest attempt to 5 se= conds. > > > > > > What is the consequence? > > > > DPDK could not get link status. At this point, the link status > > obtained through the pmd API is wrong. > > > > > In which case, DPDK application would be blocked during 5 seconds? > > > > When the dpdk application startup port is used, it will be blocked for > > up to 5 seconds to ensure that the connection status can be obtained. >=20 > I mean what is the consequence of the increase? There will be no side effects.=20 > For example, if the port is not connected (no wire), are we going to wait= 5 > seconds? This will cause a wait of up to 5 seconds. >=20 > I guess it's OK because it won't wait at all if using rte_eth_link_get_no= wait. > It may be interesting to note in the commit message. The reason for pushing this patch is that the E823 NIC needs about 2 second= s to get the link up state when the port is started, so the waiting time need= s to be extended.=20 Modified to 5 seconds, consistent with other timeouts of DPDK. >=20