From mboxrd@z Thu Jan 1 00:00:00 1970 From: Kuruvinakunnel, George Date: Wed, 3 Nov 2021 19:41:44 +0000 Subject: [Intel-wired-lan] [PATCH net-next 08/15] iavf: restore MSI state on reset In-Reply-To: <20210604165335.33329-8-anthony.l.nguyen@intel.com> References: <20210604165335.33329-1-anthony.l.nguyen@intel.com> <20210604165335.33329-8-anthony.l.nguyen@intel.com> Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: intel-wired-lan@osuosl.org List-ID: > -----Original Message----- > From: Intel-wired-lan On Behalf Of > Nguyen, Anthony L > Sent: Friday, June 4, 2021 9:53 AM > To: intel-wired-lan at lists.osuosl.org > Subject: [Intel-wired-lan] [PATCH net-next 08/15] iavf: restore MSI state on reset > > From: Mitch Williams > > If the PF experiences an FLR, the VF's MSI and MSI-X configuration will be > conveniently and silently removed in the process. When this happens, reset > recovery will appear to complete normally but no traffic will pass. The netdev > watchdog will helpfully notify everyone of this issue. > > To prevent such public embarrassment, restore MSI configuration at every reset. > For normal resets, this will do no harm, but for VF resets resulting from a PF FLR, > this will keep the VF working. > > Signed-off-by: Mitch Williams > Signed-off-by: Tony Nguyen > --- > drivers/net/ethernet/intel/iavf/iavf_main.c | 1 + > 1 file changed, 1 insertion(+) > Tested-by: George Kuruvinakunnel