From nobody Tue Feb 10 01:32:42 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org ARC-Seal: i=1; a=rsa-sha256; t=1602908339; cv=none; d=zohomail.com; s=zohoarc; b=kqkc5S3rNs72VFgyfXod7gwYee90iHUaAdxZ35sZfumJqVE3pIAkXwea8hlapdH5ihA0rwN9DKLqa/DTehtU0gamnI7VWZ/dQNr3a0w4IHNdD+VyrhC+2/yAYFn49B73QvM7LJwkYAHQZ0xxxbTm6vOq31yxV8X1e7iBVz26jkA= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1602908339; h=Content-Type:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=KzToa87ofMd2oqKkhow1X+M9twpTH8Mqwj5uVtG/nTc=; b=T+BRAQnChM+S+Z1eEZU/joNWV5CLKLeUt3zQXy30juFX/5iWHLivMHzlt7ZnPXDOgRND2GvmCRFbwvydI+bqUM4MK8Dbr67sXgCl0MTF3+TS4/MK61gblm+xq2I/GnrsocntsI03kV6xVfzB1r2Bq19mYuzga44Boa12r0Us/pY= ARC-Authentication-Results: i=1; mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1602908339710780.9587385232177; Fri, 16 Oct 2020 21:18:59 -0700 (PDT) Received: from localhost ([::1]:52960 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kTdgI-0008QR-9b for importer@patchew.org; Sat, 17 Oct 2020 00:18:58 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:40018) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kTdXr-0006Db-LD for qemu-devel@nongnu.org; Sat, 17 Oct 2020 00:10:15 -0400 Received: from szxga05-in.huawei.com ([45.249.212.191]:5243 helo=huawei.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kTdXp-0007Hx-JL for qemu-devel@nongnu.org; Sat, 17 Oct 2020 00:10:15 -0400 Received: from DGGEMS414-HUB.china.huawei.com (unknown [172.30.72.59]) by Forcepoint Email with ESMTP id 7B2445C3648B4EC72B5E; Sat, 17 Oct 2020 12:09:56 +0800 (CST) Received: from huawei.com (10.175.101.6) by DGGEMS414-HUB.china.huawei.com (10.3.19.214) with Microsoft SMTP Server id 14.3.487.0; Sat, 17 Oct 2020 12:09:48 +0800 From: Chuan Zheng To: , Subject: [PATCH v3 13/18] migration/rdma: Add the function for dynamic page registration Date: Sat, 17 Oct 2020 12:25:43 +0800 Message-ID: <1602908748-43335-14-git-send-email-zhengchuan@huawei.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1602908748-43335-1-git-send-email-zhengchuan@huawei.com> References: <1602908748-43335-1-git-send-email-zhengchuan@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.175.101.6] X-CFilter-Loop: Reflected Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=45.249.212.191; envelope-from=zhengchuan@huawei.com; helo=huawei.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/10/17 00:09:47 X-ACL-Warn: Detected OS = Linux 3.11 and newer [fuzzy] X-Spam_score_int: -41 X-Spam_score: -4.2 X-Spam_bar: ---- X-Spam_report: (-4.2 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: yubihong@huawei.com, zhang.zhanghailiang@huawei.com, fengzhimin1@huawei.com, qemu-devel@nongnu.org, xiexiangyou@huawei.com, alex.chen@huawei.com, wanghao232@huawei.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Add the 'qemu_rdma_registration' function, multifd send threads call it to register memory. Signed-off-by: Zhimin Feng Signed-off-by: Chuan Zheng --- migration/rdma.c | 51 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 51 insertions(+) diff --git a/migration/rdma.c b/migration/rdma.c index 1af81f5..a366849 100644 --- a/migration/rdma.c +++ b/migration/rdma.c @@ -3738,6 +3738,57 @@ out: return ret; } =20 +/* + * Dynamic page registrations for multifd RDMA threads. + */ +static int qemu_rdma_registration(void *opaque) +{ + RDMAContext *rdma =3D opaque; + RDMAControlHeader resp =3D {.type =3D RDMA_CONTROL_RAM_BLOCKS_RESULT }; + RDMALocalBlocks *local =3D &rdma->local_ram_blocks; + int reg_result_idx, i, nb_dest_blocks; + RDMAControlHeader head =3D { .len =3D 0, .repeat =3D 1 }; + int ret =3D 0; + + head.type =3D RDMA_CONTROL_RAM_BLOCKS_REQUEST; + + ret =3D qemu_rdma_exchange_send(rdma, &head, NULL, &resp, + ®_result_idx, rdma->pin_all ? + qemu_rdma_reg_whole_ram_blocks : NULL); + if (ret < 0) { + goto out; + } + + nb_dest_blocks =3D resp.len / sizeof(RDMADestBlock); + + if (local->nb_blocks !=3D nb_dest_blocks) { + rdma->error_state =3D -EINVAL; + ret =3D -1; + goto out; + } + + qemu_rdma_move_header(rdma, reg_result_idx, &resp); + memcpy(rdma->dest_blocks, + rdma->wr_data[reg_result_idx].control_curr, resp.len); + + for (i =3D 0; i < nb_dest_blocks; i++) { + network_to_dest_block(&rdma->dest_blocks[i]); + + /* We require that the blocks are in the same order */ + if (rdma->dest_blocks[i].length !=3D local->block[i].length) { + rdma->error_state =3D -EINVAL; + ret =3D -1; + goto out; + } + local->block[i].remote_host_addr =3D + rdma->dest_blocks[i].remote_host_addr; + local->block[i].remote_rkey =3D rdma->dest_blocks[i].remote_rkey; + } + +out: + return ret; +} + /* Destination: * Called via a ram_control_load_hook during the initial RAM load section = which * lists the RAMBlocks by name. This lets us know the order of the RAMBlo= cks --=20 1.8.3.1