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Message-ID: <090b1631-6baf-96b8-3039-0e769c261cab@intel.com>
Date: Thu, 26 Oct 2023 11:14:27 +0200
From: Przemek Kitszel <przemyslaw.kitszel@...el.com>
To: Ivan Vecera <ivecera@...hat.com>, Jacob Keller <jacob.e.keller@...el.com>,
Tony Nguyen <anthony.l.nguyen@...el.com>, Jesse Brandeburg
<jesse.brandeburg@...el.com>
CC: "David S. Miller" <davem@...emloft.net>, Eric Dumazet
<edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni
<pabeni@...hat.com>, <intel-wired-lan@...ts.osuosl.org>,
<linux-kernel@...r.kernel.org>, Wojciech Drewek <wojciech.drewek@...el.com>,
<netdev@...r.kernel.org>
Subject: Re: [PATCH iwl-next] i40e: Remove queue tracking fields from
i40e_adminq_ring
On 10/26/23 10:38, Ivan Vecera wrote:
> Fields 'head', 'tail', 'len', 'bah' and 'bal' in i40e_adminq_ring
> are used to store register offsets. These offsets are initialized
> and remains constant so there is no need to store them in the
> i40e_adminq_ring structure.
>
> Remove these fields from i40e_adminq_ring and use register offset
> constants instead. Remove i40e_adminq_init_regs() that originally
> stores these constants into these fields.
>
> Finally improve i40e_check_asq_alive() that assumes that
> non-zero value of hw->aq.asq.len indicates fully initialized
> AdminQ send queue. Replace it by check for non-zero value
> of field hw->aq.asq.count that is non-zero when the sending
> queue is initialized and is zeroed during shutdown of
> the queue.
>
> Signed-off-by: Ivan Vecera <ivecera@...hat.com>
> ---
> drivers/net/ethernet/intel/i40e/i40e_adminq.c | 86 +++++++------------
> drivers/net/ethernet/intel/i40e/i40e_adminq.h | 7 --
> drivers/net/ethernet/intel/i40e/i40e_common.c | 8 +-
> drivers/net/ethernet/intel/i40e/i40e_main.c | 8 +-
> 4 files changed, 39 insertions(+), 70 deletions(-)
Huh, our code is so self similar :F
as with iavf, asq change is semantically different from the rest,
anyway:
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@...el.com>
BTW,
unless you want this applied directly by netdev maintainers (so skipping
intel), you should use "iwl-next" tag and set to: IWL, cc: netdev
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