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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 856AFCAC5B0 for ; Wed, 24 Sep 2025 01:16:21 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 4146510E69C; Wed, 24 Sep 2025 01:16:21 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="ZIbVXh2K"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.17]) by gabe.freedesktop.org (Postfix) with ESMTPS id 33F9610E692 for ; Wed, 24 Sep 2025 01:16:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1758676569; x=1790212569; h=from:to:subject:date:message-id:in-reply-to:references: mime-version:content-transfer-encoding; bh=BUKNBfnrj+lADkq/e3YjQCupV/Gx6iQ1YHXZsQcjvv8=; b=ZIbVXh2KphwBZDg1VWEryFqqqcfyAnooe6phfsPZRFR8SA4PWvFzOlS3 PXh/wnnaOPVPqRrKzAxZNtauCfNr+AZoNH5hJzIlbBoRk2AYZxyaBTfTn rfXVeljDhpECcGmtwZQrkVITiHuGEV0sZdnaS8+u/bB+qwCF+BnRPerDt OcY+GAavisQ6Wwuf4+SXjTpFz6TTkot1RF53wa4uZHoBckWegqOUMCcYC M9/FpldSNk84NYPi70nlCltiV7lkvEU4WfcvPjb8Nfo7EEtv5RB2/Qvaf lKTGku+hoJqKdRNhOpkvUZ3kID3AzMVf6VHDfTf2NuJuBWwsmOUpfaSw8 A==; X-CSE-ConnectionGUID: yXmO7yLnTEeyCb14N0sLDA== X-CSE-MsgGUID: qHpMGYZKSd+vky31Q/El2g== X-IronPort-AV: E=McAfee;i="6800,10657,11531"; a="60908258" X-IronPort-AV: E=Sophos;i="6.17,312,1747724400"; d="scan'208";a="60908258" Received: from fmviesa001.fm.intel.com ([10.60.135.141]) by orvoesa109.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 23 Sep 2025 18:16:09 -0700 X-CSE-ConnectionGUID: q/bPQ87kSueY46Q2uYBfjQ== X-CSE-MsgGUID: h3ctpQfcQVS8u9xGyMuN1w== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.18,289,1751266800"; d="scan'208";a="207841793" Received: from lstrano-desk.jf.intel.com ([10.54.39.91]) by smtpauth.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 23 Sep 2025 18:16:08 -0700 From: Matthew Brost To: intel-xe@lists.freedesktop.org Subject: [PATCH v2 13/34] drm/xe/vf: Abort H2G sends during VF post-migration recovery Date: Tue, 23 Sep 2025 18:15:40 -0700 Message-Id: <20250924011601.888293-14-matthew.brost@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250924011601.888293-1-matthew.brost@intel.com> References: <20250924011601.888293-1-matthew.brost@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: intel-xe@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel Xe graphics driver List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-xe-bounces@lists.freedesktop.org Sender: "Intel-xe" While VF post-migration recovery is in progress, abort H2G sends with -ECANCEL. These messages are treated as lost, and TLB invalidation errors are suppressed. During this phase, the H2G channel is down, and VF recovery requires the CT lock to proceed. Signed-off-by: Matthew Brost --- drivers/gpu/drm/xe/xe_guc_ct.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/xe/xe_guc_ct.c b/drivers/gpu/drm/xe/xe_guc_ct.c index 47079ab9922c..661ab1bf4502 100644 --- a/drivers/gpu/drm/xe/xe_guc_ct.c +++ b/drivers/gpu/drm/xe/xe_guc_ct.c @@ -25,6 +25,7 @@ #include "xe_gt_printk.h" #include "xe_gt_sriov_pf_control.h" #include "xe_gt_sriov_pf_monitor.h" +#include "xe_gt_sriov_vf.h" #include "xe_guc.h" #include "xe_guc_log.h" #include "xe_guc_relay.h" @@ -851,7 +852,7 @@ static int __guc_ct_send_locked(struct xe_guc_ct *ct, const u32 *action, u32 len, u32 g2h_len, u32 num_g2h, struct g2h_fence *g2h_fence) { - struct xe_gt *gt __maybe_unused = ct_to_gt(ct); + struct xe_gt *gt = ct_to_gt(ct); u16 seqno; int ret; @@ -872,7 +873,8 @@ static int __guc_ct_send_locked(struct xe_guc_ct *ct, const u32 *action, goto out; } - if (ct->state == XE_GUC_CT_STATE_STOPPED) { + if (ct->state == XE_GUC_CT_STATE_STOPPED || + xe_gt_sriov_vf_recovery_inprogress(gt)) { ret = -ECANCELED; goto out; } -- 2.34.1