From patchwork Thu Jul 14 09:44:03 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wen Gu X-Patchwork-Id: 12917634 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 8614DC433EF for ; Thu, 14 Jul 2022 09:46:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238328AbiGNJqR (ORCPT ); Thu, 14 Jul 2022 05:46:17 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51264 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238438AbiGNJpn (ORCPT ); Thu, 14 Jul 2022 05:45:43 -0400 Received: from out30-131.freemail.mail.aliyun.com (out30-131.freemail.mail.aliyun.com [115.124.30.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0FC2F12D26; Thu, 14 Jul 2022 02:45:41 -0700 (PDT) X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R691e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=ay29a033018046050;MF=guwen@linux.alibaba.com;NM=1;PH=DS;RN=10;SR=0;TI=SMTPD_---0VJIcqMy_1657791934; Received: from localhost(mailfrom:guwen@linux.alibaba.com fp:SMTPD_---0VJIcqMy_1657791934) by smtp.aliyun-inc.com; Thu, 14 Jul 2022 17:45:38 +0800 From: Wen Gu To: kgraul@linux.ibm.com, wenjia@linux.ibm.com, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com Cc: linux-s390@vger.kernel.org, netdev@vger.kernel.org, linux-rdma@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH net-next v2 4/6] net/smc: Use sysctl-specified types of buffers in new link group Date: Thu, 14 Jul 2022 17:44:03 +0800 Message-Id: <1657791845-1060-5-git-send-email-guwen@linux.alibaba.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1657791845-1060-1-git-send-email-guwen@linux.alibaba.com> References: <1657791845-1060-1-git-send-email-guwen@linux.alibaba.com> Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org This patch introduces a new SMC-R specific element buf_type in struct smc_link_group, for recording the value of sysctl smcr_buf_type when link group is created. New created link group will create and reuse buffers of the type specified by buf_type. Signed-off-by: Wen Gu --- net/smc/smc_core.c | 1 + net/smc/smc_core.h | 1 + 2 files changed, 2 insertions(+) diff --git a/net/smc/smc_core.c b/net/smc/smc_core.c index fa3a7a8..86afbbc 100644 --- a/net/smc/smc_core.c +++ b/net/smc/smc_core.c @@ -907,6 +907,7 @@ static int smc_lgr_create(struct smc_sock *smc, struct smc_init_info *ini) lgr->net = smc_ib_net(lnk->smcibdev); lgr_list = &smc_lgr_list.list; lgr_lock = &smc_lgr_list.lock; + lgr->buf_type = lgr->net->smc.sysctl_smcr_buf_type; atomic_inc(&lgr_cnt); } smc->conn.lgr = lgr; diff --git a/net/smc/smc_core.h b/net/smc/smc_core.h index 7652dfa..0261124 100644 --- a/net/smc/smc_core.h +++ b/net/smc/smc_core.h @@ -284,6 +284,7 @@ struct smc_link_group { /* used rtoken elements */ u8 next_link_id; enum smc_lgr_type type; + enum smcr_buf_type buf_type; /* redundancy state */ u8 pnet_id[SMC_MAX_PNETID_LEN + 1]; /* pnet id of this lgr */