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From: Tariq Toukan <ttoukan.linux@gmail.com>
To: Parav Pandit <parav@nvidia.com>,
	Caleb Sander Mateos <csander@purestorage.com>,
	Saeed Mahameed <saeedm@nvidia.com>,
	Leon Romanovsky <leon@kernel.org>,
	Tariq Toukan <tariqt@nvidia.com>,
	Andrew Lunn <andrew+netdev@lunn.ch>,
	"David S. Miller" <davem@davemloft.net>,
	Eric Dumazet <edumazet@google.com>,
	Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>
Cc: "netdev@vger.kernel.org" <netdev@vger.kernel.org>,
	"linux-rdma@vger.kernel.org" <linux-rdma@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH net-next v2 2/2] mlx5/core: deduplicate {mlx5_,}eq_update_ci()
Date: Mon, 11 Nov 2024 13:59:37 +0200	[thread overview]
Message-ID: <aabb11f4-74ea-4e57-a085-3448e64a2d07@gmail.com> (raw)
In-Reply-To: <CY8PR12MB71954BBB822554D67F08A1CBDC5D2@CY8PR12MB7195.namprd12.prod.outlook.com>



On 08/11/2024 12:49, Parav Pandit wrote:
> 
>> From: Caleb Sander Mateos <csander@purestorage.com>
>> Sent: Friday, November 8, 2024 12:01 AM
>>
>> The logic of eq_update_ci() is duplicated in mlx5_eq_update_ci(). The only
>> additional work done by mlx5_eq_update_ci() is to increment
>> eq->cons_index. Call eq_update_ci() from mlx5_eq_update_ci() to avoid
>> the duplication.
>>
>> Signed-off-by: Caleb Sander Mateos <csander@purestorage.com>
>> ---
>>   drivers/net/ethernet/mellanox/mlx5/core/eq.c | 9 +--------
>>   1 file changed, 1 insertion(+), 8 deletions(-)
>>
>> diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eq.c
>> b/drivers/net/ethernet/mellanox/mlx5/core/eq.c
>> index 859dcf09b770..078029c81935 100644
>> --- a/drivers/net/ethernet/mellanox/mlx5/core/eq.c
>> +++ b/drivers/net/ethernet/mellanox/mlx5/core/eq.c
>> @@ -802,19 +802,12 @@ struct mlx5_eqe *mlx5_eq_get_eqe(struct mlx5_eq
>> *eq, u32 cc)  }  EXPORT_SYMBOL(mlx5_eq_get_eqe);
>>
>>   void mlx5_eq_update_ci(struct mlx5_eq *eq, u32 cc, bool arm)  {
>> -	__be32 __iomem *addr = eq->doorbell + (arm ? 0 : 2);
>> -	u32 val;
>> -
>>   	eq->cons_index += cc;
>> -	val = (eq->cons_index & 0xffffff) | (eq->eqn << 24);
>> -
>> -	__raw_writel((__force u32)cpu_to_be32(val), addr);
>> -	/* We still want ordering, just not swabbing, so add a barrier */
>> -	wmb();
>> +	eq_update_ci(eq, arm);
>>   }
>>   EXPORT_SYMBOL(mlx5_eq_update_ci);
>>
>>   static void comp_irq_release_pci(struct mlx5_core_dev *dev, u16 vecidx)  {
>> --
>> 2.45.2
> 
> Reviewed-by: Parav Pandit <parav@nvidia.com>
> 

Acked-by: Tariq Toukan <tariqt@nvidia.com>


  reply	other threads:[~2024-11-11 11:59 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-11-01  3:46 [PATCH net-next 1/2] mlx5/core: avoid memory barrier in eq_update_ci() Caleb Sander Mateos
2024-11-01  3:46 ` [PATCH net-next 2/2] mlx5/core: deduplicate {mlx5_,}eq_update_ci() Caleb Sander Mateos
2024-11-03  3:55   ` Parav Pandit
2024-11-03 22:18     ` Caleb Sander
2024-11-05  5:22       ` Parav Pandit
2024-11-05 16:06         ` Caleb Sander
2024-11-06  5:44           ` Parav Pandit
2024-11-06 23:44             ` Caleb Sander
2024-11-07  2:36               ` Saeed Mahameed
2024-11-07  2:43                 ` Parav Pandit
2024-11-07  4:45                 ` Caleb Sander
2024-11-07  5:14                   ` Saeed Mahameed
2024-11-07 18:30                     ` [PATCH net-next v2 1/2] mlx5/core: relax memory barrier in eq_update_ci() Caleb Sander Mateos
2024-11-07 18:30                       ` [PATCH net-next v2 2/2] mlx5/core: deduplicate {mlx5_,}eq_update_ci() Caleb Sander Mateos
2024-11-08 10:49                         ` Parav Pandit
2024-11-11 11:59                           ` Tariq Toukan [this message]
2024-11-08 10:46                       ` [PATCH net-next v2 1/2] mlx5/core: relax memory barrier in eq_update_ci() Parav Pandit
2024-11-11 11:59                         ` Tariq Toukan
2024-11-12  2:38                       ` Jakub Kicinski

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