netdev - [PATCH 1/1] bnx2x: Force fundamental reset for EEH recovery

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Message-Id: <201503041410.t24EAAix006027@d03av03.boulder.ibm.com>
Date:	Wed, 04 Mar 2015 08:09:44 -0600
From:	Brian King <brking@...ux.vnet.ibm.com>
To:	ariel.elior@...gic.com
Cc:	netdev@...r.kernel.org, cascardo@...ux.vnet.ibm.com,
	brking@...ux.vnet.ibm.com, stable@...r.kernel.org
Subject: [PATCH 1/1] bnx2x: Force fundamental reset for EEH recovery


EEH recovery for bnx2x based adapters is not reliable on all Power
systems using the default hot reset, which can result in an
unrecoverable EEH error. Forcing the use of fundamental reset
during EEH recovery fixes this.

Cc: stable<stable@...r.kernel.org>
Signed-off-by: Brian King <brking@...ux.vnet.ibm.com>
---

 drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c |    3 +++
 1 file changed, 3 insertions(+)

diff -puN drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c~bnx2x_needs_freset drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
--- linux/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c~bnx2x_needs_freset	2015-03-03 08:46:09.281961703 -0600
+++ linux-bjking1/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c	2015-03-03 08:46:09.287961639 -0600
@@ -12722,6 +12722,9 @@ static int bnx2x_init_dev(struct bnx2x *
 	pci_write_config_dword(bp->pdev, PCICFG_GRC_ADDRESS,
 			       PCICFG_VENDOR_ID_OFFSET);
 
+	/* Set PCIe reset type to fundamental for EEH recovery */
+	pdev->needs_freset = 1;
+
 	/* AER (Advanced Error reporting) configuration */
 	rc = pci_enable_pcie_error_reporting(pdev);
 	if (!rc)
_

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