netdev - Re: [PATCH net 2/7] Revert "ibmvnic: remove duplicate napi

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Message-ID: <d46aba13-017a-fd08-e07d-06f526289f34@linux.vnet.ibm.com>
Date:   Wed, 23 Jun 2021 23:42:56 -0700
From:   Rick Lindsley <ricklind@...ux.vnet.ibm.com>
To:     Lijun Pan <lijunp213@...il.com>,
        Sukadev Bhattiprolu <sukadev@...ux.ibm.com>
Cc:     Networking <netdev@...r.kernel.org>,
        Dany Madden <drt@...ux.ibm.com>,
        Rick Lindsley <ricklind@...ux.ibm.com>,
        Brian King <brking@...ux.ibm.com>,
        Cristobal Forno <cforno12@...ux.ibm.com>,
        Abdul Haleem <abdhalee@...ibm.com>
Subject: Re: [PATCH net 2/7] Revert "ibmvnic: remove duplicate napi_schedule
 call in open function"

On 6/23/21 11:20 PM, Lijun Pan wrote:
> On Wed, Jun 23, 2021 at 11:16 PM Sukadev Bhattiprolu

> It is very likely VIOS does not forward the rx packets so that the rx interrupt
> isn't raised.

On what do you base this position? Do you have some concrete data that indicates this?

As noted, bisect led us here.  With the previous patch applied, bug occurs.  With the previous patch removed, it does not.  As the description says, we are reverting the patch until it can be determined whether the problem is the patch itself or that the patch better magnifies some other problem.

Rick