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From: Jakub Kicinski <kuba@kernel.org>
To: Leon Romanovsky <leon@kernel.org>
Cc: Tony Nguyen <anthony.l.nguyen@intel.com>,
	davem@davemloft.net, pabeni@redhat.com, edumazet@google.com,
	netdev@vger.kernel.org, Ivan Vecera <ivecera@redhat.com>,
	Ma Yuying <yuma@redhat.com>,
	Simon Horman <simon.horman@corigine.com>,
	Rafal Romanowski <rafal.romanowski@intel.com>
Subject: Re: [PATCH net-next 1/2] i40e: Add helper for VF inited state check with timeout
Date: Tue, 11 Jul 2023 17:37:31 -0700	[thread overview]
Message-ID: <20230711173731.54b9fa80@kernel.org> (raw)
In-Reply-To: <20230711120904.GP41919@unreal>

On Tue, 11 Jul 2023 15:09:04 +0300 Leon Romanovsky wrote:
> > +	for (i = 0; i < 15; i++) {
> > +		if (test_bit(I40E_VF_STATE_INIT, &vf->vf_states))
> > +			return true;
> > +
> > +		msleep(20);
> > +	}
> > +
> > +	dev_err(&vf->pf->pdev->dev, "VF %d still in reset. Try again.\n",
> > +		vf->vf_id);  
> 
> This error is not accurate in the edge case, when VF state changed to
> be INIT during msleep() while i was 14.

Right, it's a change in behavior from existing code,
old code re-checked if INIT is set after the last sleep.
-- 
pw-bot: cr

  reply	other threads:[~2023-07-12  0:37 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-07-10 16:40 [PATCH net-next 0/2][pull request] Intel Wired LAN Driver Updates 2023-07-10 (i40e) Tony Nguyen
2023-07-10 16:40 ` [PATCH net-next 1/2] i40e: Add helper for VF inited state check with timeout Tony Nguyen
2023-07-11 12:09   ` Leon Romanovsky
2023-07-12  0:37     ` Jakub Kicinski [this message]
2023-07-12 13:28       ` Ivan Vecera
2023-07-12 13:18     ` Ivan Vecera
2023-07-12 17:31       ` Jakub Kicinski
2023-07-10 16:40 ` [PATCH net-next 2/2] i40e: Wait for pending VF reset in VF set callbacks Tony Nguyen
2023-07-11 12:10   ` Leon Romanovsky
  -- strict thread matches above, loose matches on Subject: below --
2023-06-13 12:16 [PATCH net-next 1/2] i40e: Add helper for VF inited state check with timeout Ivan Vecera
2023-06-14  8:26 ` Simon Horman

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