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

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Message-ID: <SJ0PR11MB5866E0E090A73D9793D510E5E5352@SJ0PR11MB5866.namprd11.prod.outlook.com>
Date: Tue, 26 Mar 2024 17:16:27 +0000
From: "Loktionov, Aleksandr" <aleksandr.loktionov@...el.com>
To: ivecera <ivecera@...hat.com>, "intel-wired-lan@...ts.osuosl.org"
	<intel-wired-lan@...ts.osuosl.org>
CC: "open list:NETWORKING DRIVERS" <netdev@...r.kernel.org>, open list
	<linux-kernel@...r.kernel.org>, Eric Dumazet <edumazet@...gle.com>, "Nguyen,
 Anthony L" <anthony.l.nguyen@...el.com>, Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>, "David S. Miller" <davem@...emloft.net>
Subject: RE: [Intel-wired-lan] [PATCH iwl-next 3/7] i40e: Change argument of
 i40e_detect_recover_hung()



> -----Original Message-----
> From: Intel-wired-lan <intel-wired-lan-bounces@...osl.org> On
> Behalf Of Ivan Vecera
> Sent: Monday, March 18, 2024 3:31 PM
> To: intel-wired-lan@...ts.osuosl.org
> Cc: open list:NETWORKING DRIVERS <netdev@...r.kernel.org>; open
> list <linux-kernel@...r.kernel.org>; Eric Dumazet
> <edumazet@...gle.com>; Nguyen, Anthony L
> <anthony.l.nguyen@...el.com>; Jakub Kicinski <kuba@...nel.org>;
> Paolo Abeni <pabeni@...hat.com>; David S. Miller
> <davem@...emloft.net>
> Subject: [Intel-wired-lan] [PATCH iwl-next 3/7] i40e: Change
> argument of i40e_detect_recover_hung()
> 
Please change title into Change -> refactor to make it obvious you don't change any functionality, but just refactor.

> 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.
> 
> Signed-off-by: Ivan Vecera <ivecera@...hat.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