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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>,
	Moshe Shemesh <moshe@nvidia.com>, Shay Drory <shayd@nvidia.com>
Subject: [net 5/5] net/mlx5: Read embedded cpu after init bit cleared
Date: Wed, 31 May 2023 20:10:51 -0700	[thread overview]
Message-ID: <20230601031051.131529-6-saeed@kernel.org> (raw)
In-Reply-To: <20230601031051.131529-1-saeed@kernel.org>

From: Moshe Shemesh <moshe@nvidia.com>

During driver load it reads embedded_cpu bit from initialization
segment, but the initialization segment is readable only after
initialization bit is cleared.

Move the call to mlx5_read_embedded_cpu() right after initialization bit
cleared.

Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Fixes: 591905ba9679 ("net/mlx5: Introduce Mellanox SmartNIC and modify page management logic")
Reviewed-by: Shay Drory <shayd@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/main.c b/drivers/net/ethernet/mellanox/mlx5/core/main.c
index 2132a6510639..d6ee016deae1 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c
@@ -923,7 +923,6 @@ static int mlx5_pci_init(struct mlx5_core_dev *dev, struct pci_dev *pdev,
 	}
 
 	mlx5_pci_vsc_init(dev);
-	dev->caps.embedded_cpu = mlx5_read_embedded_cpu(dev);
 	return 0;
 
 err_clr_master:
@@ -1155,6 +1154,7 @@ static int mlx5_function_setup(struct mlx5_core_dev *dev, bool boot, u64 timeout
 		goto err_cmd_cleanup;
 	}
 
+	dev->caps.embedded_cpu = mlx5_read_embedded_cpu(dev);
 	mlx5_cmd_set_state(dev, MLX5_CMDIF_STATE_UP);
 
 	mlx5_start_health_poll(dev);
-- 
2.40.1


      parent reply	other threads:[~2023-06-01  3:11 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-06-01  3:10 [pull request][net 0/5] mlx5 fixes 2023-05-31 Saeed Mahameed
2023-06-01  3:10 ` [net 1/5] net/mlx5: Remove rmap also in case dynamic MSIX not supported Saeed Mahameed
2023-06-01 17:20   ` patchwork-bot+netdevbpf
2023-06-01  3:10 ` [net 2/5] net/mlx5: Fix setting of irq->map.index for static IRQ case Saeed Mahameed
2023-06-01  3:10 ` [net 3/5] net/mlx5: Ensure af_desc.mask is properly initialized Saeed Mahameed
2023-06-01  3:10 ` [net 4/5] net/mlx5e: Fix error handling in mlx5e_refresh_tirs Saeed Mahameed
2023-06-01  3:10 ` Saeed Mahameed [this message]

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