From patchwork Mon Mar 1 16:11:27 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 390065 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=-18.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,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 08F36C433E6 for ; Mon, 1 Mar 2021 17:08:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D233964F89 for ; Mon, 1 Mar 2021 17:08:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237146AbhCARHr (ORCPT ); Mon, 1 Mar 2021 12:07:47 -0500 Received: from mail.kernel.org ([198.145.29.99]:59056 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235634AbhCARDR (ORCPT ); Mon, 1 Mar 2021 12:03:17 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 71C3C64EBD; Mon, 1 Mar 2021 16:38:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1614616704; bh=xjs0Nd/oXMRI3/5NlNp0VafnFnzJ7ySqGn57JKwjn8A=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=HLReE0fPlaOWsI+W/DaOj+UsNR8yfbdNjngDwf6rwbxCRRl1b+Q599pHasRr6yVNH QMvm7/XcKLuRgtIi5dxxdgS+9FsTvbMfhb7zTD1WTqrs9j6BlcrrIzLbyfIbDYeVgn BRkYuQ39DLHyY7OLVOBVuJ24F4H+zs39vG8lt6Cg= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Lijun Pan , "David S. Miller" , Sasha Levin Subject: [PATCH 4.19 067/247] ibmvnic: skip send_request_unmap for timeout reset Date: Mon, 1 Mar 2021 17:11:27 +0100 Message-Id: <20210301161034.956515733@linuxfoundation.org> X-Mailer: git-send-email 2.30.1 In-Reply-To: <20210301161031.684018251@linuxfoundation.org> References: <20210301161031.684018251@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Lijun Pan [ Upstream commit 7d3a7b9ea59ddb223aec59b45fa1713c633aaed4 ] Timeout reset will trigger the VIOS to unmap it automatically, similarly as FAILVOER and MOBILITY events. If we unmap it in the linux side, we will see errors like "30000003: Error 4 in REQUEST_UNMAP_RSP". So, don't call send_request_unmap for timeout reset. Fixes: ed651a10875f ("ibmvnic: Updated reset handling") Signed-off-by: Lijun Pan Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- drivers/net/ethernet/ibm/ibmvnic.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c index 788d944b3b51b..0c7c0206b1be5 100644 --- a/drivers/net/ethernet/ibm/ibmvnic.c +++ b/drivers/net/ethernet/ibm/ibmvnic.c @@ -212,8 +212,13 @@ static void free_long_term_buff(struct ibmvnic_adapter *adapter, if (!ltb->buff) return; + /* VIOS automatically unmaps the long term buffer at remote + * end for the following resets: + * FAILOVER, MOBILITY, TIMEOUT. + */ if (adapter->reset_reason != VNIC_RESET_FAILOVER && - adapter->reset_reason != VNIC_RESET_MOBILITY) + adapter->reset_reason != VNIC_RESET_MOBILITY && + adapter->reset_reason != VNIC_RESET_TIMEOUT) send_request_unmap(adapter, ltb->map_id); dma_free_coherent(dev, ltb->size, ltb->buff, ltb->addr); }