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Tue, 27 Oct 2026 21:35:53 +0000 Message-ID: Date: Tue, 27 Oct 2026 14:35:51 -0700 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 1/5] ice: check the full PF reset polling limit To: Aaron Ma , Tony Nguyen , Przemek Kitszel , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , "Paolo Abeni" , Alexander Lobakin , Richard Cochran , , CC: Dan Nowlin , Brett Creeley , "moderated list:INTEL ETHERNET DRIVERS" References: <20261019105155.3793063-1-aaron.ma@canonical.com> <20261019105155.3793063-2-aaron.ma@canonical.com> Content-Language: en-US From: Jacob Keller In-Reply-To: <20261019105155.3793063-2-aaron.ma@canonical.com> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-ClientProxiedBy: MW4PR04CA0045.namprd04.prod.outlook.com (2603:10b6:303:6a::20) To DS0PR11MB7381.namprd11.prod.outlook.com (2603:10b6:8:134::14) X-Mailing-List: netdev@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DS0PR11MB7381:EE_|CH8PR11MB9458:EE_ X-MS-Office365-Filtering-Correlation-Id: 00b27550-8005-467a-0cad-08df3472470b X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|366016|7416014|376014|23010399003|921020|261022075727099003|261021123027099003|261021135927099003|11063799006|4143699003|56012099006|261009223027099003|261022105027099003|261021121427099003|10067099003|22082099003|6133799003|18002099003|261026140227099003; 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Its timeout check still compares > the iteration count against only the normal PF reset wait. > > Consequently, exhausting the extended loop reports success while PFSWR > is still set. A reset completing exactly at the old limit can instead > report a false failure. Subsequent initialization must not proceed on > the assumption that an unfinished reset succeeded. > > Compare the count against the same bound used by the polling loop. > > Fixes: c9a12d6d2091 ("ice: Increase timeout after PFR") > Signed-off-by: Aaron Ma > --- > drivers/net/ethernet/intel/ice/ice_common.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/net/ethernet/intel/ice/ice_common.c b/drivers/net/ethernet/intel/ice/ice_common.c > index 04633103e3e61..82b803e74aac0 100644 > --- a/drivers/net/ethernet/intel/ice/ice_common.c > +++ b/drivers/net/ethernet/intel/ice/ice_common.c > @@ -1291,7 +1291,7 @@ static int ice_pf_reset(struct ice_hw *hw) > mdelay(1); > } > > - if (cnt == ICE_PF_RESET_WAIT_COUNT) { > + if (cnt == ICE_GLOBAL_CFG_LOCK_TIMEOUT + ICE_PF_RESET_WAIT_COUNT) { > ice_debug(hw, ICE_DBG_INIT, "PF reset polling failed to complete.\n"); > return -EIO; > } This conflicts with https://lore.kernel.org/intel-wired-lan/20261002130752.2597259-9-poros@redhat.com/ which is part of the series https://lore.kernel.org/intel-wired-lan/20261002130752.2597259-1-poros@redhat.com/ I think Petr's fix is more complete, checking for the actual reset status is more reliable than *either* the old or this check. I'm rejecting just this one patch from the series and won't apply it. If you need to rebase please exlude that fix in v2 or later and we'll carry the better fix from Petr as it goes through the net tree. Thanks, Jake