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charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: BYAPR11MB3495.namprd11.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: e0f25aa8-598b-4736-3ef7-08da21a90e02 X-MS-Exchange-CrossTenant-originalarrivaltime: 19 Apr 2022 02:05:19.3314 (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: nW9PWMBFlYoGYWKA43VLvGWNMAdgf2SaybmHNNCJV/jelb6fsbUwcJqGthyGEOgTPC/QgVkoKjzZ7oa8VLqBAQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: SJ0PR11MB4942 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: Jeff Daly > Sent: Tuesday, April 19, 2022 05:55 > To: Wang, Haiyue ; dev@dpdk.org > Cc: stable@dpdk.org > Subject: RE: [PATCH v6 2/2] net/ixgbe: Fix SFP detection and linking on h= otplug >=20 >=20 >=20 > > -----Original Message----- > > From: Wang, Haiyue > > Sent: Thursday, April 14, 2022 8:11 AM > > To: Jeff Daly ; dev@dpdk.org > > Cc: stable@dpdk.org > > Subject: RE: [PATCH v6 2/2] net/ixgbe: Fix SFP detection and linking on > > hotplug > > > > Caution: This is an external email. Please take care when clicking link= s or > > opening attachments. > > > > > > > -----Original Message----- > > > From: Jeff Daly > > > Sent: Thursday, April 14, 2022 18:41 > > > To: Wang, Haiyue ; dev@dpdk.org > > > Cc: stable@dpdk.org > > > Subject: RE: [PATCH v6 2/2] net/ixgbe: Fix SFP detection and linking > > > on hotplug > > > > > > > > > > > > > -----Original Message----- > > > > From: Wang, Haiyue > > > > Sent: Wednesday, April 13, 2022 11:00 PM > > > > To: Jeff Daly ; dev@dpdk.org > > > > Cc: stable@dpdk.org; Stephen Douthit > > > > Subject: RE: [PATCH v6 2/2] net/ixgbe: Fix SFP detection and linkin= g > > > > on hotplug > > > > > > > > Caution: This is an external email. Please take care when clicking > > > > links or opening attachments. > > > > > > > > > > > > > -----Original Message----- > > > > > From: Wang, Haiyue > > > > > Sent: Thursday, April 14, 2022 10:49 > > > > > To: Jeff Daly ; dev@dpdk.org > > > > > Cc: stable@dpdk.org; Stephen Douthit > > > > > Subject: RE: [PATCH v6 2/2] net/ixgbe: Fix SFP detection and > > > > > linking on hotplug > > > > > > > > > > > -----Original Message----- > > > > > > From: Jeff Daly > > > > > > Sent: Wednesday, April 13, 2022 01:42 > > > > > > To: dev@dpdk.org > > > > > > Cc: stable@dpdk.org; Stephen Douthit = ; > > > > > > Wang, Haiyue > > > > > > Subject: [PATCH v6 2/2] net/ixgbe: Fix SFP detection and linkin= g > > > > > > on hotplug > > > > > > > > > > > > Currently the ixgbe driver does not ID any SFP except for the > > > > > > first one plugged in. This can lead to no-link, or incorrect sp= eed > > conditions. > > > > > > > > > > > > For example: > > > > > > > > > > > > * If link is initially established with a 1G SFP, and later a > > > > > > 1G/10G multispeed part is later installed, then the MAC link > > > > > > setup functions are never called to change from 1000BASE-X to > > > > > > 10GBASE-R mode, and the link stays running at the slower rate. > > > > > > > > > > > > * If link is initially established with a 1G SFP, and later a > > > > > > 10G only module is later installed, no link is established, > > > > > > since we are still trasnsmitting in 1000BASE-X mode to a 10GBAS= E-R > > only partner. > > > > > > > > > > > > Refactor the SFP ID/setup, and link setup code, to more closely > > > > > > match the flow of the mainline kernel driver which does not hav= e > > > > > > these issues. In that driver a service task runs periodically > > > > > > to handle these operations based on bit flags that have been se= t > > > > > > (usually via interrupt or userspace request), and then get > > > > > > cleared once the requested subtask has been completed. > > > > > > > > > > > > Fixes: af75078fece ("first public release") > > > > > > Cc: stable@dpdk.org > > > > > > > > > > > > Signed-off-by: Stephen Douthit > > > > > > Signed-off-by: Jeff Daly > > > > > > --- > > > > > > drivers/net/ixgbe/ixgbe_ethdev.c | 533 > > > > > > +++++++++++++++++++++++-------- > > > > > > +++++++++++++++++++++++drivers/net/ixgbe/ixgbe_ethdev.h | > > > > > > 14 +- > > > > > > 2 files changed, 410 insertions(+), 137 deletions(-) > > > > > > > > > > > > > > > > > > > > > > > > > > > > struct ixgbe_stat_mapping_registers { @@ -510,7 +509,7 @@ > > > > > > struct ixgbe_adapter { > > > > > > uint8_t pflink_fullchk; > > > > > > uint8_t mac_ctrl_frame_fwd; > > > > > > rte_atomic32_t link_thread_running; > > > > > > - pthread_t link_thread_tid; > > > > > > + pthread_t service_thread_tid; > > > > > > > > > > No need to rename this variable, > > > > > > > > Let's do link related service now, so we can keep it, I missed to > > > > add my comment. ;-) > > > > > > > > > > I don't understand this reply, are you still asking to rework the pat= ch or > > not? > > > > > > > Different thing. > > > > 1. This var can be kept to trace the created thread. (change less code = to keep > > the patch clean.) > > 2. Yes, two patches. > > >=20 > ok, I guess I'm just being thick-headed here, but I still don't understan= d why you are saying it > should be split into > 2 patches. if I understand *what* you are asking, you're saying make the= original thread periodic to > continuously Well, ... Your patch merges the original 'ixgbe_setup_link' task into one, this will make us hard to review the whole design. So what I said is: firstly, let's change the thread to a service thread to handle the 'ixgbe_setup_link' subtask firstly. Which is 'ixgbe_link_service' in your whole patch. Small patch is good for us to review, and try to do one thing. Hope this time, I can make myself clear. ;-) > do ixgbe_link_setup() ? I believe the problem with the setup is that the= sfp_type is only detected > once > at initialization time and if nothing is in the cage then the code just r= eturns IXGBE_SUCCESS, in > which case making > this task periodic is useless. the whole issue of hotplug is only addres= sed by the entire patch which > 1) makes the > task periodic, 2) changes the actions of the task to look for whether the= cage has something in it and > whether its > been changed and needs to be configured again. >=20 >=20 > > > > > we can separate this patch as least into two patches: > > > > > > > > > > > > > > > > > > 1st, change the thread handle 'ixgbe_dev_setup_link_thread_handle= r' > > > > > from > > > > > > > > > > run-once to as periodical, to handle the original issue. > > > > > > > > > > The name 'ixgbe_dev_setup_link_thread_handler' may be not suitabl= e > > > > > now, as it is a service thread. > > > > > > > > > > We can change it to "'ixgbe_link_service_thread_handler'" to > > > > > reflect the change purpose. > > > > > > > > > > 2nd, add the SFP hotplug in this patch. > > > > > > > > > > > > > > > > > > > > > }; > > > > > > > > > > > > -- > > > > > > 2.25.1