From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 64573C433E4 for ; Mon, 29 Mar 2021 20:18:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4C80F61994 for ; Mon, 29 Mar 2021 20:18:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231929AbhC2USM (ORCPT ); Mon, 29 Mar 2021 16:18:12 -0400 Received: from mga18.intel.com ([134.134.136.126]:19969 "EHLO mga18.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231539AbhC2UR2 (ORCPT ); Mon, 29 Mar 2021 16:17:28 -0400 IronPort-SDR: 4odjlPYYxL9k8M65WYZRXYJ+9A3z78DAyE2irDVLSwgpwFwwdRAl9JimXUD3t73btJamq2sTQO yy3JuN849kkA== X-IronPort-AV: E=McAfee;i="6000,8403,9938"; a="179160821" X-IronPort-AV: E=Sophos;i="5.81,288,1610438400"; d="scan'208";a="179160821" Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Mar 2021 13:17:26 -0700 IronPort-SDR: EG8L6fj/NL802IIlA/GpuicVevCNjhvBmnWtEDestlisXmH0BExris/mdEYgJl1eehYwKDSwz1 tZet0FmOLp/Q== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.81,288,1610438400"; d="scan'208";a="454700548" Received: from anguy11-desk2.jf.intel.com ([10.166.244.147]) by orsmga001.jf.intel.com with ESMTP; 29 Mar 2021 13:17:26 -0700 From: Tony Nguyen To: davem@davemloft.net, kuba@kernel.org Cc: Dave Ertman , netdev@vger.kernel.org, sassmann@redhat.com, anthony.l.nguyen@intel.com, Tony Brelinski Subject: [PATCH net 6/9] ice: remove DCBNL_DEVRESET bit from PF state Date: Mon, 29 Mar 2021 13:18:54 -0700 Message-Id: <20210329201857.3509461-7-anthony.l.nguyen@intel.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20210329201857.3509461-1-anthony.l.nguyen@intel.com> References: <20210329201857.3509461-1-anthony.l.nguyen@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Dave Ertman The original purpose of the ICE_DCBNL_DEVRESET was to protect the driver during DCBNL device resets. But, the flow for DCBNL device resets now consists of only calls up the stack such as dev_close() and dev_open() that will result in NDO calls to the driver. These will be handled with state changes from the stack. Also, there is a problem of the dev_close and dev_open being blocked by checks for reset in progress also using the ICE_DCBNL_DEVRESET bit. Since the ICE_DCBNL_DEVRESET bit is not necessary for protecting the driver from DCBNL device resets and it is actually blocking changes coming from the DCBNL interface, remove the bit from the PF state and don't block driver function based on DCBNL reset in progress. Fixes: b94b013eb626 ("ice: Implement DCBNL support") Signed-off-by: Dave Ertman Tested-by: Tony Brelinski Signed-off-by: Tony Nguyen --- drivers/net/ethernet/intel/ice/ice.h | 1 - drivers/net/ethernet/intel/ice/ice_dcb_nl.c | 2 -- drivers/net/ethernet/intel/ice/ice_lib.c | 1 - 3 files changed, 4 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice.h b/drivers/net/ethernet/intel/ice/ice.h index 1d4518638215..7934f0d17277 100644 --- a/drivers/net/ethernet/intel/ice/ice.h +++ b/drivers/net/ethernet/intel/ice/ice.h @@ -196,7 +196,6 @@ enum ice_state { __ICE_NEEDS_RESTART, __ICE_PREPARED_FOR_RESET, /* set by driver when prepared */ __ICE_RESET_OICR_RECV, /* set by driver after rcv reset OICR */ - __ICE_DCBNL_DEVRESET, /* set by dcbnl devreset */ __ICE_PFR_REQ, /* set by driver and peers */ __ICE_CORER_REQ, /* set by driver and peers */ __ICE_GLOBR_REQ, /* set by driver and peers */ diff --git a/drivers/net/ethernet/intel/ice/ice_dcb_nl.c b/drivers/net/ethernet/intel/ice/ice_dcb_nl.c index 468a63f7eff9..4180f1f35fb8 100644 --- a/drivers/net/ethernet/intel/ice/ice_dcb_nl.c +++ b/drivers/net/ethernet/intel/ice/ice_dcb_nl.c @@ -18,12 +18,10 @@ static void ice_dcbnl_devreset(struct net_device *netdev) while (ice_is_reset_in_progress(pf->state)) usleep_range(1000, 2000); - set_bit(__ICE_DCBNL_DEVRESET, pf->state); dev_close(netdev); netdev_state_change(netdev); dev_open(netdev, NULL); netdev_state_change(netdev); - clear_bit(__ICE_DCBNL_DEVRESET, pf->state); } /** diff --git a/drivers/net/ethernet/intel/ice/ice_lib.c b/drivers/net/ethernet/intel/ice/ice_lib.c index 7ac2beaed95c..d13c7fc8fb0a 100644 --- a/drivers/net/ethernet/intel/ice/ice_lib.c +++ b/drivers/net/ethernet/intel/ice/ice_lib.c @@ -3078,7 +3078,6 @@ int ice_vsi_rebuild(struct ice_vsi *vsi, bool init_vsi) bool ice_is_reset_in_progress(unsigned long *state) { return test_bit(__ICE_RESET_OICR_RECV, state) || - test_bit(__ICE_DCBNL_DEVRESET, state) || test_bit(__ICE_PFR_REQ, state) || test_bit(__ICE_CORER_REQ, state) || test_bit(__ICE_GLOBR_REQ, state); -- 2.26.2