From patchwork Mon Mar 4 14:00:25 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yuan Liu X-Patchwork-Id: 13581646 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 lists.gnu.org (lists.gnu.org [209.51.188.17]) (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 3E9DAC54798 for ; Tue, 5 Mar 2024 05:50:16 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rhNf7-0004UN-LV; Tue, 05 Mar 2024 00:48:25 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rhNf5-0004Tl-2M for qemu-devel@nongnu.org; Tue, 05 Mar 2024 00:48:23 -0500 Received: from mgamail.intel.com ([198.175.65.19]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rhNf3-0003ev-85 for qemu-devel@nongnu.org; Tue, 05 Mar 2024 00:48:22 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1709617701; x=1741153701; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=2iEuTnLvQ/OH0PNo/1fvbYIPLyWaF7RSSa/asMCWoTc=; b=VJph5R3tywJxeyzUpVK1b8rHX7/yPABNhv6JMNhnsspibn6morwArBP8 mqAUIo6+h0n1rfF5NfxY0LEcS7Co5WItXuxuUQcfqHAx/aLHmUvPvJ1pE tk29GOx31GgomU8+jdRsXvHa384I1xVkOB67vzaBuWIlscqNeIpwFkwDT s35eoAcF/pDbrci3QmHckAWV1QbGX0USd2BJk9rR4ViW6WNT4l9tFiK4N veDkQvKFsExIruwNwMB6kZpF1blW+KhNoZOfvtttjlDz5gU73i7WBQG0j Ggh9JgSxfibXjk27IYKziAjyvROnjSJ601rH7yTQVVZsf7V/G7zjwVKxX A==; X-IronPort-AV: E=McAfee;i="6600,9927,11003"; a="4006288" X-IronPort-AV: E=Sophos;i="6.06,205,1705392000"; d="scan'208";a="4006288" Received: from orviesa002.jf.intel.com ([10.64.159.142]) by orvoesa111.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Mar 2024 21:48:19 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.06,205,1705392000"; d="scan'208";a="40135985" Received: from sae-gw02.sh.intel.com (HELO localhost) ([10.239.45.110]) by orviesa002.jf.intel.com with ESMTP; 04 Mar 2024 21:48:17 -0800 From: Yuan Liu To: peterx@redhat.com, farosas@suse.de Cc: qemu-devel@nongnu.org, hao.xiang@bytedance.com, bryan.zhang@bytedance.com, yuan1.liu@intel.com, nanhai.zou@intel.com Subject: [PATCH v4 5/8] migration/multifd: implement initialization of qpl compression Date: Mon, 4 Mar 2024 22:00:25 +0800 Message-Id: <20240304140028.1590649-6-yuan1.liu@intel.com> X-Mailer: git-send-email 2.39.3 In-Reply-To: <20240304140028.1590649-1-yuan1.liu@intel.com> References: <20240304140028.1590649-1-yuan1.liu@intel.com> MIME-Version: 1.0 Received-SPF: pass client-ip=198.175.65.19; envelope-from=yuan1.liu@intel.com; helo=mgamail.intel.com X-Spam_score_int: -15 X-Spam_score: -1.6 X-Spam_bar: - X-Spam_report: (-1.6 / 5.0 requ) BAYES_00=-1.9, DATE_IN_PAST_12_24=1.049, DKIMWL_WL_HIGH=-0.571, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org the qpl initialization includes memory allocation for compressed data and the qpl job initialization. the qpl initialization will check whether the In-Memory Analytics Accelerator(IAA) hardware is available, if the platform does not have IAA hardware or the IAA hardware is not available, the QPL compression initialization will fail. Signed-off-by: Yuan Liu Reviewed-by: Nanhai Zou --- migration/multifd-qpl.c | 128 ++++++++++++++++++++++++++++++++++++++-- 1 file changed, 122 insertions(+), 6 deletions(-) diff --git a/migration/multifd-qpl.c b/migration/multifd-qpl.c index 6b94e732ac..f4db97ca01 100644 --- a/migration/multifd-qpl.c +++ b/migration/multifd-qpl.c @@ -33,6 +33,100 @@ struct qpl_data { uint32_t *zbuf_hdr; }; +static void free_zbuf(struct qpl_data *qpl) +{ + if (qpl->zbuf != NULL) { + munmap(qpl->zbuf, qpl->job_num * qpl->data_size); + qpl->zbuf = NULL; + } + if (qpl->zbuf_hdr != NULL) { + g_free(qpl->zbuf_hdr); + qpl->zbuf_hdr = NULL; + } +} + +static int alloc_zbuf(struct qpl_data *qpl, uint8_t chan_id, Error **errp) +{ + int flags = MAP_PRIVATE | MAP_POPULATE | MAP_ANONYMOUS; + uint32_t size = qpl->job_num * qpl->data_size; + uint8_t *buf; + + buf = (uint8_t *) mmap(NULL, size, PROT_READ | PROT_WRITE, flags, -1, 0); + if (buf == MAP_FAILED) { + error_setg(errp, "multifd: %u: alloc_zbuf failed, job num %u, size %u", + chan_id, qpl->job_num, qpl->data_size); + return -1; + } + qpl->zbuf = buf; + qpl->zbuf_hdr = g_new0(uint32_t, qpl->job_num); + return 0; +} + +static void free_jobs(struct qpl_data *qpl) +{ + for (int i = 0; i < qpl->job_num; i++) { + qpl_fini_job(qpl->job_array[i]); + g_free(qpl->job_array[i]); + qpl->job_array[i] = NULL; + } + g_free(qpl->job_array); + qpl->job_array = NULL; +} + +static int alloc_jobs(struct qpl_data *qpl, uint8_t chan_id, Error **errp) +{ + qpl_status status; + uint32_t job_size = 0; + qpl_job *job = NULL; + /* always use IAA hardware accelerator */ + qpl_path_t path = qpl_path_hardware; + + status = qpl_get_job_size(path, &job_size); + if (status != QPL_STS_OK) { + error_setg(errp, "multifd: %u: qpl_get_job_size failed with error %d", + chan_id, status); + return -1; + } + qpl->job_array = g_new0(qpl_job *, qpl->job_num); + for (int i = 0; i < qpl->job_num; i++) { + job = g_malloc0(job_size); + status = qpl_init_job(path, job); + if (status != QPL_STS_OK) { + error_setg(errp, "multifd: %u: qpl_init_job failed with error %d", + chan_id, status); + free_jobs(qpl); + return -1; + } + qpl->job_array[i] = job; + } + return 0; +} + +static int init_qpl(struct qpl_data *qpl, uint32_t job_num, uint32_t data_size, + uint8_t chan_id, Error **errp) +{ + qpl->job_num = job_num; + qpl->data_size = data_size; + if (alloc_zbuf(qpl, chan_id, errp) != 0) { + return -1; + } + if (alloc_jobs(qpl, chan_id, errp) != 0) { + free_zbuf(qpl); + return -1; + } + return 0; +} + +static void deinit_qpl(struct qpl_data *qpl) +{ + if (qpl != NULL) { + free_jobs(qpl); + free_zbuf(qpl); + qpl->job_num = 0; + qpl->data_size = 0; + } +} + /** * qpl_send_setup: setup send side * @@ -45,8 +139,15 @@ struct qpl_data { */ static int qpl_send_setup(MultiFDSendParams *p, Error **errp) { - /* Implement in next patch */ - return -1; + struct qpl_data *qpl; + + qpl = g_new0(struct qpl_data, 1); + if (init_qpl(qpl, p->page_count, p->page_size, p->id, errp) != 0) { + g_free(qpl); + return -1; + } + p->data = qpl; + return 0; } /** @@ -59,7 +160,11 @@ static int qpl_send_setup(MultiFDSendParams *p, Error **errp) */ static void qpl_send_cleanup(MultiFDSendParams *p, Error **errp) { - /* Implement in next patch */ + struct qpl_data *qpl = p->data; + + deinit_qpl(qpl); + g_free(p->data); + p->data = NULL; } /** @@ -91,8 +196,15 @@ static int qpl_send_prepare(MultiFDSendParams *p, Error **errp) */ static int qpl_recv_setup(MultiFDRecvParams *p, Error **errp) { - /* Implement in next patch */ - return -1; + struct qpl_data *qpl; + + qpl = g_new0(struct qpl_data, 1); + if (init_qpl(qpl, p->page_count, p->page_size, p->id, errp) != 0) { + g_free(qpl); + return -1; + } + p->data = qpl; + return 0; } /** @@ -104,7 +216,11 @@ static int qpl_recv_setup(MultiFDRecvParams *p, Error **errp) */ static void qpl_recv_cleanup(MultiFDRecvParams *p) { - /* Implement in next patch */ + struct qpl_data *qpl = p->data; + + deinit_qpl(qpl); + g_free(p->data); + p->data = NULL; } /**