netdev - [PATCH net 4/4] net/mlx4_core: Don't issue PCIe speed/width checks for VFs

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Date:	Thu,  1 May 2014 15:51:56 +0300
From:	Or Gerlitz <ogerlitz@...lanox.com>
To:	davem@...emloft.net
Cc:	netdev@...r.kernel.org, roland@...nel.org,
	jackm@....mellanox.co.il, matanb@...lanox.com, amirv@...lanox.com,
	Eyal Perry <eyalpe@...lanox.com>,
	Or Gerlitz <ogerlitz@...lanox.com>
Subject: [PATCH net 4/4] net/mlx4_core: Don't issue PCIe speed/width checks for VFs

From: Eyal Perry <eyalpe@...lanox.com>

Carrying out PCI speed/width checks through pcie_get_minimum_link()
on VFs yield wrong results, so remove them.

Fixes: b912b2f ('net/mlx4_core: Warn if device doesn't have enough PCI bandwidth')
Signed-off-by: Eyal Perry <eyalpe@...lanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@...lanox.com>
---
 drivers/net/ethernet/mellanox/mlx4/main.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c
index e98c15a..7cf9dad 100644
--- a/drivers/net/ethernet/mellanox/mlx4/main.c
+++ b/drivers/net/ethernet/mellanox/mlx4/main.c
@@ -2440,7 +2440,8 @@ slave_start:
 	 * No return code for this call, just warn the user in case of PCI
 	 * express device capabilities are under-satisfied by the bus.
 	 */
-	mlx4_check_pcie_caps(dev);
+	if (!mlx4_is_slave(dev))
+		mlx4_check_pcie_caps(dev);
 
 	/* In master functions, the communication channel must be initialized
 	 * after obtaining its address from fw */
-- 
1.7.1

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