From: Konrad Adamczyk <konrad.adamczyk@cavium.com>
Date: Tue, 7 Feb 2017 11:20:19 +0000 (+0100)
Subject: [thunderx] Don't disable NIC when exiting from iPXE
X-Git-Tag: v1.20.1~310
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=30f96c9f41f2596493c6ca18060bebaaaf44415b;p=thirdparty%2Fipxe.git

[thunderx] Don't disable NIC when exiting from iPXE

According to ThunderX Errata G-17560, NIC_PF_CFG[ENA] bit should not
be cleared at exit.  This allows other drivers to access the NIC regs
correctly.

Signed-off-by: Konrad Adamczyk <konrad.adamczyk@cavium.com>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
---

diff --git a/src/drivers/net/thunderx.c b/src/drivers/net/thunderx.c
index 901ecba11..c9c246cb8 100644
--- a/src/drivers/net/thunderx.c
+++ b/src/drivers/net/thunderx.c
@@ -1345,9 +1345,6 @@ static void txnic_pf_remove ( struct pci_device *pci ) {
 	/* Remove from list of physical functions */
 	list_del ( &pf->list );
 
-	/* Disable physical function */
-	writeq ( 0, ( pf->regs + TXNIC_PF_CFG ) );
-
 	/* Unmap registers */
 	iounmap ( pf->regs );