linux-kernel - [PATCH 3.19 072/123] bnx2x: Force fundamental reset for EEH recovery

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Message-Id: <20150324154427.278913671@linuxfoundation.org>
Date:	Tue, 24 Mar 2015 16:46:21 +0100
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Brian King <brking@...ux.vnet.ibm.com>,
	"David S. Miller" <davem@...emloft.net>
Subject: [PATCH 3.19 072/123] bnx2x: Force fundamental reset for EEH recovery

3.19-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Brian King <brking@...ux.vnet.ibm.com>

commit da293700568ed3d96fcf062ac15d7d7c41377f11 upstream.

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.

Signed-off-by: Brian King <brking@...ux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

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

--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -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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