From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Stefan Assmann , Aaron Brown , Jeff Kirsher , "David S. Miller" Subject: [PATCH 3.15 025/109] igb: do a reset on SR-IOV re-init if device is down Date: Sat, 26 Jul 2014 12:01:47 -0700 Message-Id: <20140726190224.590458076@linuxfoundation.org> In-Reply-To: <20140726190223.834037485@linuxfoundation.org> References: <20140726190223.834037485@linuxfoundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: 3.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Stefan Assmann commit 76252723e88681628a3dbb9c09c963e095476f73 upstream. To properly re-initialize SR-IOV it is necessary to reset the device even if it is already down. Not doing this may result in Tx unit hangs. Signed-off-by: Stefan Assmann Tested-by: Aaron Brown Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- drivers/net/ethernet/intel/igb/igb_main.c | 2 ++ 1 file changed, 2 insertions(+) --- a/drivers/net/ethernet/intel/igb/igb_main.c +++ b/drivers/net/ethernet/intel/igb/igb_main.c @@ -7581,6 +7581,8 @@ static int igb_sriov_reinit(struct pci_d if (netif_running(netdev)) igb_close(netdev); + else + igb_reset(adapter); igb_clear_interrupt_scheme(adapter);