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From: Saeed Mahameed <saeed@kernel.org>
To: "David S. Miller" <davem@davemloft.net>,
	Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
	Eric Dumazet <edumazet@google.com>
Cc: Saeed Mahameed <saeedm@nvidia.com>,
	netdev@vger.kernel.org, Tariq Toukan <tariqt@nvidia.com>,
	Gal Pressman <gal@nvidia.com>,
	Leon Romanovsky <leonro@nvidia.com>,
	Daniel Jurgens <danielj@nvidia.com>, William Tu <witu@nvidia.com>
Subject: [PATCH net-next V3 1/4] net/mlx5: IFC updates for SF max IO EQs
Date: Thu, 11 Jul 2024 17:33:07 -0700	[thread overview]
Message-ID: <20240712003310.355106-2-saeed@kernel.org> (raw)
In-Reply-To: <20240712003310.355106-1-saeed@kernel.org>

From: Daniel Jurgens <danielj@nvidia.com>

Expose a new cap sf_eq_usage. The vhca_resource_manager can write this
cap, indicating the SF driver should use max_num_eqs_24b to determine
how many EQs to use.

Will be used in the next patch, to indicate to the SF driver from the PF
that the user has set the max io eqs via devlink. So the SF driver can
later query the proper max eq value from the new cap.

devlink port function set pci/0000:08:00.0/32768 max_io_eqs 32

Signed-off-by: Daniel Jurgens <danielj@nvidia.com>
Reviewed-by: William Tu <witu@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
---
 include/linux/mlx5/mlx5_ifc.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h
index fdad0071d599..360d42f041b0 100644
--- a/include/linux/mlx5/mlx5_ifc.h
+++ b/include/linux/mlx5/mlx5_ifc.h
@@ -1994,7 +1994,9 @@ struct mlx5_ifc_cmd_hca_cap_2_bits {
 	u8	   migration_tracking_state[0x1];
 	u8	   reserved_at_ca[0x6];
 	u8	   migration_in_chunks[0x1];
-	u8	   reserved_at_d1[0xf];
+	u8	   reserved_at_d1[0x1];
+	u8	   sf_eq_usage[0x1];
+	u8	   reserved_at_d3[0xd];
 
 	u8	   cross_vhca_object_to_object_supported[0x20];
 
-- 
2.45.2


  reply	other threads:[~2024-07-12  0:33 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-07-12  0:33 [PATCH net-next V3 0/4] mlx5 misc 2023-07-08 (sf max eq) Saeed Mahameed
2024-07-12  0:33 ` Saeed Mahameed [this message]
2024-07-12  0:33 ` [PATCH net-next V3 2/4] net/mlx5: Set sf_eq_usage for SF max EQs Saeed Mahameed
2024-07-12  0:33 ` [PATCH net-next V3 3/4] net/mlx5: Set default max eqs for SFs Saeed Mahameed
2024-07-12  0:33 ` [PATCH net-next V3 4/4] net/mlx5: Use set number of max EQs Saeed Mahameed
2024-07-13 22:50 ` [PATCH net-next V3 0/4] mlx5 misc 2023-07-08 (sf max eq) patchwork-bot+netdevbpf

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