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Mon, 20 Feb 2023 05:39:37 +0000 Received: from DM6PR11MB3516.namprd11.prod.outlook.com ([fe80::bdb7:d4c0:39b1:7ca3]) by DM6PR11MB3516.namprd11.prod.outlook.com ([fe80::bdb7:d4c0:39b1:7ca3%3]) with mapi id 15.20.6111.019; Mon, 20 Feb 2023 05:39:37 +0000 From: "Zhang, Yuying" To: "He, ShiyangX" CC: "dev@dpdk.org" , "Zhou, YidingX" , "stable@dpdk.org" , "Singh, Aman Deep" , "Burakov, Anatoly" , "Li, Xiaoyun" , Alvin Zhang Subject: RE: [PATCH] app/testpmd: fix secondary process not forwarding Thread-Topic: [PATCH] app/testpmd: fix secondary process not forwarding Thread-Index: AQHZHCWTQ9xLf5ow8EGBW/JfCm6C0q6GrpSAgAbaPACADpvkgIAoe1+ggAA3lICAEssl4A== Date: Mon, 20 Feb 2023 05:39:37 +0000 Message-ID: References: <20221230075554.25244-1-shiyangx.he@intel.com> <20221230092331.4a82c5f8@hermes.local> In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=intel.com; 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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: DM6PR11MB3516.namprd11.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: ca92f2e9-4e2d-412e-b5b4-08db1304dab9 X-MS-Exchange-CrossTenant-originalarrivaltime: 20 Feb 2023 05:39:37.2832 (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: lMlyaQs64e8aB9SkRj6hZ0dQ0yDZunqqwMwQe8n0TyslSeNEvzK4t+HewokcgC6ozz0u6R1W+iQvsqOv9TlGCQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH0PR11MB7634 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: He, ShiyangX > Sent: 2023=1B$BG/=1B(B2=1B$B7n=1B(B8=1B$BF|=1B(B 14:39 > To: Zhang, Yuying > Cc: dev@dpdk.org; Zhou, YidingX ; > stable@dpdk.org; Singh, Aman Deep ; > Burakov, Anatoly ; Li, Xiaoyun > ; Alvin Zhang > Subject: RE: [PATCH] app/testpmd: fix secondary process not forwarding >=20 >=20 >=20 > >-----Original Message----- > >From: Zhang, Yuying > >Sent: Wednesday, February 8, 2023 11:22 AM > >To: He, ShiyangX > >Cc: dev@dpdk.org; Zhou, YidingX ; > >stable@dpdk.org; Singh, Aman Deep ; > Burakov, > >Anatoly ; Li, Xiaoyun > >; Alvin Zhang > >Subject: RE: [PATCH] app/testpmd: fix secondary process not forwarding > > > >Hi Shiyang, > > > >> -----Original Message----- > >> From: He, ShiyangX > >> Sent: 2023=1B$BG/=1B(B1=1B$B7n=1B(B13=1B$BF|=1B(B 17:08 > >> To: He, ShiyangX ; Zhang, Yuying > >> > >> Cc: dev@dpdk.org; Zhou, YidingX ; > >> stable@dpdk.org; Singh, Aman Deep ; > >> Burakov, Anatoly ; Li, Xiaoyun > >> ; Alvin Zhang > >> Subject: RE: [PATCH] app/testpmd: fix secondary process not > >> forwarding > >> > >> @Zhang, Yuying Hi, please take a look at this patch! Are there any > comments? > >> > >> >-----Original Message----- > >> >From: He, ShiyangX > >> >Sent: Wednesday, January 4, 2023 10:02 AM > >> >To: Stephen Hemminger > >> >Cc: dev@dpdk.org; Zhou, YidingX ; > >> >stable@dpdk.org; Singh, Aman Deep ; > >Zhang, > >> >Yuying ; Burakov, Anatoly > >> >; Li, Xiaoyun ; > >> >Alvin Zhang > >> >Subject: RE: [PATCH] app/testpmd: fix secondary process not > >> >forwarding > >> > > >> >>> Under multi-process scenario, the secondary process gets queue > >> >>> state from the wrong location (the global variable 'ports'). > >> >>> Therefore, the secondary process can not forward since > >> >>> "stream_init" is > >not called. > >> >>> > >> >>> This commit fixes the issue by calling 'rte_eth_rx/tx_queue_info_g= et' > >> >>> to get queue state from shared memory. > >> >>> > >> >>> Fixes: a78040c990cb ("app/testpmd: update forward engine > >> >>> beginning") > >> >>> Cc: stable@dpdk.org > >> >>> > >> >>> Signed-off-by: Shiyang He Acked-by: Yuying Zhang > >> >> > >> >>Would it be possible to fix this the initialization of ports > >> >>variable, rather than doing a per-state fixup here? > >> > > >> >In multi-process scenario, the secondary process does not initialize > >> >the queue state in the 'ports' variable, and the ethdev's queue > >> >state may be changed by any other process, which causes 'ports' > >> >queue state of per-process and ethdev's queue state are > >> >inconsistent. Therefore, getting the queue state from ethdev is a fea= sible > way which I can think of. > > > >You should fix the queue state in the 'ports' variable of secondary > >process in the initialization of ports variable instead of fixup here. >=20 > If the ethdev's queue state is changed by other processes, the queue stat= e in > the 'ports' variable is inconsistent with ethdev's queue state. Therefore= , > should obtain it from ethdev when accessing the queue state in the 'ports= ' > variable.