linux-kernel - RE: [Intel-wired-lan] [PATCH iwl-next v2 3/7] i40e: Refactor argument of i40e_detect_recover

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Date: Fri, 29 Mar 2024 11:02:04 +0000
From: "Loktionov, Aleksandr" <aleksandr.loktionov@...el.com>
To: Kalesh Anakkur Purayil <kalesh-anakkur.purayil@...adcom.com>, ivecera
	<ivecera@...hat.com>
CC: "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"edumazet@...gle.com" <edumazet@...gle.com>,
	"intel-wired-lan@...ts.osuosl.org" <intel-wired-lan@...ts.osuosl.org>,
	"kuba@...nel.org" <kuba@...nel.org>, "Nguyen, Anthony L"
	<anthony.l.nguyen@...el.com>, "pabeni@...hat.com" <pabeni@...hat.com>,
	"davem@...emloft.net" <davem@...emloft.net>
Subject: RE: [Intel-wired-lan] [PATCH iwl-next v2 3/7] i40e: Refactor argument
 of i40e_detect_recover_hung()



> -----Original Message-----
> From: Intel-wired-lan <intel-wired-lan-bounces@...osl.org> On
> Behalf Of Kalesh Anakkur Purayil
> Sent: Friday, March 29, 2024 5:47 AM
> To: ivecera <ivecera@...hat.com>
> Cc: netdev@...r.kernel.org; linux-kernel@...r.kernel.org;
> Loktionov, Aleksandr <aleksandr.loktionov@...el.com>;
> edumazet@...gle.com; intel-wired-lan@...ts.osuosl.org;
> kuba@...nel.org; Nguyen, Anthony L <anthony.l.nguyen@...el.com>;
> pabeni@...hat.com; davem@...emloft.net
> Subject: Re: [Intel-wired-lan] [PATCH iwl-next v2 3/7] i40e:
> Refactor argument of i40e_detect_recover_hung()
> 
> On Wed, Mar 27, 2024 at 1:28 PM Ivan Vecera <ivecera@...hat.com>
> wrote:
> >
> > Commit 07d44190a389 ("i40e/i40evf: Detect and recover hung queue
> > scenario") changes i40e_detect_recover_hung() argument type from
> > i40e_pf* to i40e_vsi* to be shareable by both i40e and i40evf.
> > Because the i40evf does not exist anymore and the function is
> > exclusively used by i40e we can revert this change.
> >
> > Reviewed-by: Michal Schmidt <mschmidt@...hat.com>
> > Signed-off-by: Ivan Vecera <ivecera@...hat.com>
> 
> Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@...adcom.com>
Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@...el.com>

> > ---
> >  drivers/net/ethernet/intel/i40e/i40e_main.c |  2 +-
> >  drivers/net/ethernet/intel/i40e/i40e_txrx.c | 10 ++++++----
> >  drivers/net/ethernet/intel/i40e/i40e_txrx.h |  2 +-
> >  3 files changed, 8 insertions(+), 6 deletions(-)
> >
> > diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c
> b/drivers/net/ethernet/intel/i40e/i40e_main.c
> > index 7fed7fb69d4e..1ba28893f49e 100644
> > --- a/drivers/net/ethernet/intel/i40e/i40e_main.c
> > +++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
> > @@ -11274,7 +11274,7 @@ static void i40e_service_task(struct
> work_struct *work)
> >                 return;
> >
> >         if (!test_bit(__I40E_RECOVERY_MODE, pf->state)) {
> > -               i40e_detect_recover_hung(pf->vsi[pf->lan_vsi]);
> > +               i40e_detect_recover_hung(pf);
> >                 i40e_sync_filters_subtask(pf);
> >                 i40e_reset_subtask(pf);
> >                 i40e_handle_mdd_event(pf);
> > diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c
> b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
> > index 1a12b732818e..e35a08de16b2 100644
> > --- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c
> > +++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
> > @@ -860,13 +860,15 @@ u32 i40e_get_tx_pending(struct i40e_ring
> *ring, bool in_sw)
> >
> >  /**
> >   * i40e_detect_recover_hung - Function to detect and recover
> hung_queues
> > - * @vsi:  pointer to vsi struct with tx queues
> > + * @pf: pointer to PF struct
> >   *
> > - * VSI has netdev and netdev has TX queues. This function is to
> check each of
> > - * those TX queues if they are hung, trigger recovery by issuing
> SW interrupt.
> > + * LAN VSI has netdev and netdev has TX queues. This function is
> to check
> > + * each of those TX queues if they are hung, trigger recovery by
> issuing
> > + * SW interrupt.
> >   **/
> > -void i40e_detect_recover_hung(struct i40e_vsi *vsi)
> > +void i40e_detect_recover_hung(struct i40e_pf *pf)
> >  {
> > +       struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi];
> >         struct i40e_ring *tx_ring = NULL;
> >         struct net_device *netdev;
> >         unsigned int i;
> > diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.h
> b/drivers/net/ethernet/intel/i40e/i40e_txrx.h
> > index 2cdc7de6301c..7c26c9a2bf65 100644
> > --- a/drivers/net/ethernet/intel/i40e/i40e_txrx.h
> > +++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.h
> > @@ -470,7 +470,7 @@ void i40e_free_rx_resources(struct i40e_ring
> *rx_ring);
> >  int i40e_napi_poll(struct napi_struct *napi, int budget);
> >  void i40e_force_wb(struct i40e_vsi *vsi, struct i40e_q_vector
> *q_vector);
> >  u32 i40e_get_tx_pending(struct i40e_ring *ring, bool in_sw);
> > -void i40e_detect_recover_hung(struct i40e_vsi *vsi);
> > +void i40e_detect_recover_hung(struct i40e_pf *pf);
> >  int __i40e_maybe_stop_tx(struct i40e_ring *tx_ring, int size);
> >  bool __i40e_chk_linearize(struct sk_buff *skb);
> >  int i40e_xdp_xmit(struct net_device *dev, int n, struct
> xdp_frame **frames,
> > --
> > 2.43.0
> >
> >
> 
> 
> --
> Regards,
> Kalesh A P