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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 07045C4332F for ; Mon, 12 Dec 2022 13:34:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232583AbiLLNeL (ORCPT ); Mon, 12 Dec 2022 08:34:11 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34504 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232798AbiLLNdt (ORCPT ); Mon, 12 Dec 2022 08:33:49 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A9D1D13E31 for ; Mon, 12 Dec 2022 05:33:38 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 2B3A561070 for ; Mon, 12 Dec 2022 13:33:38 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id EE024C433EF; Mon, 12 Dec 2022 13:33:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1670852017; bh=9X9RDF9eE81gyO87jnWvyoATxa7q007k1vyV6vPKySg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=10KINb16AzIx/Pib0MT7qp50nK4LNoCJgMEgk4ySFZ7uokfkkLtOtMZKrvRu693il DhO25rvp2Ym2wwT2MN1wcFHPi0yV8BOU7MZcGy5M8Hv0e46p0k7N/ig1KAzFqTm8qM jbKQ4ASv3Rwo26YAIr1VLQqeMjknu2Um8SMBeejM= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Michal Jaron , Kamil Maziarz , Tony Nguyen , Sasha Levin , Gurucharan Subject: [PATCH 5.15 091/123] i40e: Fix not setting default xps_cpus after reset Date: Mon, 12 Dec 2022 14:17:37 +0100 Message-Id: <20221212130930.850182771@linuxfoundation.org> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20221212130926.811961601@linuxfoundation.org> References: <20221212130926.811961601@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Michal Jaron [ Upstream commit 82e0572b23029b380464fa9fdc125db9c1506d0a ] During tx rings configuration default XPS queue config is set and __I40E_TX_XPS_INIT_DONE is locked. __I40E_TX_XPS_INIT_DONE state is cleared and set again with default mapping only during queues build, it means after first setup or reset with queues rebuild. (i.e. ethtool -L combined ) After other resets (i.e. ethtool -t ) XPS_INIT_DONE is not cleared and those default maps cannot be set again. It results in cleared xps_cpus mapping until queues are not rebuild or mapping is not set by user. Add clearing __I40E_TX_XPS_INIT_DONE state during reset to let the driver set xps_cpus to defaults again after it was cleared. Fixes: 6f853d4f8e93 ("i40e: allow XPS with QoS enabled") Signed-off-by: Michal Jaron Signed-off-by: Kamil Maziarz Tested-by: Gurucharan (A Contingent worker at Intel) Signed-off-by: Tony Nguyen Signed-off-by: Sasha Levin --- drivers/net/ethernet/intel/i40e/i40e_main.c | 19 ++++++++++++++++++- 1 file changed, 18 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c index 19b5c5677584..ed2c961902b6 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_main.c +++ b/drivers/net/ethernet/intel/i40e/i40e_main.c @@ -10519,6 +10519,21 @@ static int i40e_rebuild_channels(struct i40e_vsi *vsi) return 0; } +/** + * i40e_clean_xps_state - clean xps state for every tx_ring + * @vsi: ptr to the VSI + **/ +static void i40e_clean_xps_state(struct i40e_vsi *vsi) +{ + int i; + + if (vsi->tx_rings) + for (i = 0; i < vsi->num_queue_pairs; i++) + if (vsi->tx_rings[i]) + clear_bit(__I40E_TX_XPS_INIT_DONE, + vsi->tx_rings[i]->state); +} + /** * i40e_prep_for_reset - prep for the core to reset * @pf: board private structure @@ -10543,8 +10558,10 @@ static void i40e_prep_for_reset(struct i40e_pf *pf) i40e_pf_quiesce_all_vsi(pf); for (v = 0; v < pf->num_alloc_vsi; v++) { - if (pf->vsi[v]) + if (pf->vsi[v]) { + i40e_clean_xps_state(pf->vsi[v]); pf->vsi[v]->seid = 0; + } } i40e_shutdown_adminq(&pf->hw); -- 2.35.1