From patchwork Mon Feb 5 03:33:17 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wen Gu X-Patchwork-Id: 13544953 X-Patchwork-Delegate: kuba@kernel.org Received: from out30-133.freemail.mail.aliyun.com (out30-133.freemail.mail.aliyun.com [115.124.30.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5A941B641; Mon, 5 Feb 2024 03:33:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=115.124.30.133 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707104016; cv=none; b=JhXQG7uAyFJEnGYXNsOAL5Y1iWzb5nd956Nfm30ZmuT4wN+RTVm80xOyU1IHxssUzfi0vpbZ+AnttRLG/9VJMSNklP7D8zVb4m453f2HsbVBG3y6d5nJZzCxIBGR4wM9uGmBp9WKmpv1hB8MYvj+GGp128he16Jrx47Ii9GORs8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707104016; c=relaxed/simple; bh=GusX03XsSYBVcrLgizOYTdDfBRDJW0TkmlPm0Gnju3w=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=hfjPOIX7BN9rOUXi3otc4P6agmKykTOFSn6TR5GAEQizl/Xz9rJioA+FE0/stRXV920shbkwd1IuLNzpMHt0UeKZudXJzk3QiS9a1+5FxXC59QV+Dqs9CjMZ7GVoKSl7V8o+5mhR3nL7X+vq7Stb0l9+skmUQhLnUU1iZ8SPc6w= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.alibaba.com; spf=pass smtp.mailfrom=linux.alibaba.com; dkim=pass (1024-bit key) header.d=linux.alibaba.com header.i=@linux.alibaba.com header.b=x1W+NMKw; arc=none smtp.client-ip=115.124.30.133 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.alibaba.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.alibaba.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.alibaba.com header.i=@linux.alibaba.com header.b="x1W+NMKw" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.alibaba.com; s=default; t=1707104010; h=From:To:Subject:Date:Message-Id:MIME-Version; bh=yfss92uzzak+nboLgiX+RB8TBpPy1BbgGZcPC6jc+JU=; b=x1W+NMKwZtKOQsVGOHm0bhip3/Q8Ua26R0F7ZkNVHVipfKWBvvzCt+jda7h4hPkYb+wZuD+iz6YN+jx3I+HpFmKwViYyGMhMRma4fQU4N0tlyTg08pCHYX4URyuGZbGzGwxHrG0D/lYKGfvnvOJTYSBAMVuWn8HzLyckhTSPJ04= X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R161e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=ay29a033018046059;MF=guwen@linux.alibaba.com;NM=1;PH=DS;RN=12;SR=0;TI=SMTPD_---0W02KNaG_1707103997; Received: from localhost(mailfrom:guwen@linux.alibaba.com fp:SMTPD_---0W02KNaG_1707103997) by smtp.aliyun-inc.com; Mon, 05 Feb 2024 11:33:29 +0800 From: Wen Gu To: wenjia@linux.ibm.com, jaka@linux.ibm.com, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com Cc: alibuda@linux.alibaba.com, tonylu@linux.alibaba.com, guwen@linux.alibaba.com, linux-s390@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH net-next] net/smc: change the term virtual ISM to Emulated-ISM Date: Mon, 5 Feb 2024 11:33:17 +0800 Message-Id: <20240205033317.127269-1-guwen@linux.alibaba.com> X-Mailer: git-send-email 2.32.0.3.g01195cf9f Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Patchwork-Delegate: kuba@kernel.org According to latest release of SMCv2.1[1], the term 'virtual ISM' has been changed to 'Emulated-ISM' to avoid the ambiguity of the word 'virtual' in different contexts. So the names or comments in the code need be modified accordingly. [1] https://www.ibm.com/support/pages/node/7112343 Signed-off-by: Wen Gu Reviewed-by: Simon Horman Reviewed-by: Wenjia Zhang --- net/smc/af_smc.c | 22 +++++++++++----------- net/smc/smc.h | 4 ++-- net/smc/smc_clc.c | 6 +++--- net/smc/smc_clc.h | 2 +- net/smc/smc_core.c | 4 ++-- net/smc/smc_ism.h | 10 +++++----- 6 files changed, 24 insertions(+), 24 deletions(-) diff --git a/net/smc/af_smc.c b/net/smc/af_smc.c index a2cb30af46cb..66763c74ab76 100644 --- a/net/smc/af_smc.c +++ b/net/smc/af_smc.c @@ -1045,7 +1045,7 @@ static int smc_find_ism_v2_device_clnt(struct smc_sock *smc, int rc = SMC_CLC_DECL_NOSMCDDEV; struct smcd_dev *smcd; int i = 1, entry = 1; - bool is_virtual; + bool is_emulated; u16 chid; if (smcd_indicated(ini->smc_type_v1)) @@ -1057,12 +1057,12 @@ static int smc_find_ism_v2_device_clnt(struct smc_sock *smc, chid = smc_ism_get_chid(smcd); if (!smc_find_ism_v2_is_unique_chid(chid, ini, i)) continue; - is_virtual = __smc_ism_is_virtual(chid); + is_emulated = __smc_ism_is_emulated(chid); if (!smc_pnet_is_pnetid_set(smcd->pnetid) || smc_pnet_is_ndev_pnetid(sock_net(&smc->sk), smcd->pnetid)) { - if (is_virtual && entry == SMCD_CLC_MAX_V2_GID_ENTRIES) + if (is_emulated && entry == SMCD_CLC_MAX_V2_GID_ENTRIES) /* It's the last GID-CHID entry left in CLC - * Proposal SMC-Dv2 extension, but a virtual + * Proposal SMC-Dv2 extension, but an Emulated- * ISM device will take two entries. So give * up it and try the next potential ISM device. */ @@ -1072,7 +1072,7 @@ static int smc_find_ism_v2_device_clnt(struct smc_sock *smc, ini->is_smcd = true; rc = 0; i++; - entry = is_virtual ? entry + 2 : entry + 1; + entry = is_emulated ? entry + 2 : entry + 1; if (entry > SMCD_CLC_MAX_V2_GID_ENTRIES) break; } @@ -1413,10 +1413,10 @@ static int smc_connect_ism(struct smc_sock *smc, if (rc) return rc; - if (__smc_ism_is_virtual(ini->ism_chid[ini->ism_selected])) + if (__smc_ism_is_emulated(ini->ism_chid[ini->ism_selected])) ini->ism_peer_gid[ini->ism_selected].gid_ext = ntohll(aclc->d1.gid_ext); - /* for non-virtual ISM devices, peer gid_ext remains 0. */ + /* for non-Emulated-ISM devices, peer gid_ext remains 0. */ } ini->ism_peer_gid[ini->ism_selected].gid = ntohll(aclc->d0.gid); @@ -2117,10 +2117,10 @@ static void smc_check_ism_v2_match(struct smc_init_info *ini, if (smc_ism_get_chid(smcd) == proposed_chid && !smc_ism_cantalk(proposed_gid, ISM_RESERVED_VLANID, smcd)) { ini->ism_peer_gid[*matches].gid = proposed_gid->gid; - if (__smc_ism_is_virtual(proposed_chid)) + if (__smc_ism_is_emulated(proposed_chid)) ini->ism_peer_gid[*matches].gid_ext = proposed_gid->gid_ext; - /* non-virtual ISM's peer gid_ext remains 0. */ + /* non-Emulated-ISM's peer gid_ext remains 0. */ ini->ism_dev[*matches] = smcd; (*matches)++; break; @@ -2170,10 +2170,10 @@ static void smc_find_ism_v2_device_serv(struct smc_sock *new_smc, smcd_gid.gid = ntohll(smcd_v2_ext->gidchid[i].gid); smcd_gid.gid_ext = 0; chid = ntohs(smcd_v2_ext->gidchid[i].chid); - if (__smc_ism_is_virtual(chid)) { + if (__smc_ism_is_emulated(chid)) { if ((i + 1) == smc_v2_ext->hdr.ism_gid_cnt || chid != ntohs(smcd_v2_ext->gidchid[i + 1].chid)) - /* each virtual ISM device takes two GID-CHID + /* each Emulated-ISM device takes two GID-CHID * entries and CHID of the second entry repeats * that of the first entry. * diff --git a/net/smc/smc.h b/net/smc/smc.h index df64efd2dee8..18c8b7870198 100644 --- a/net/smc/smc.h +++ b/net/smc/smc.h @@ -56,11 +56,11 @@ enum smc_state { /* possible states of an SMC socket */ }; enum smc_supplemental_features { - SMC_SPF_VIRT_ISM_DEV = 0, + SMC_SPF_EMULATED_ISM_DEV = 0, }; #define SMC_FEATURE_MASK \ - (BIT(SMC_SPF_VIRT_ISM_DEV)) + (BIT(SMC_SPF_EMULATED_ISM_DEV)) struct smc_link_group; diff --git a/net/smc/smc_clc.c b/net/smc/smc_clc.c index 9a13709bea1c..e55026c7529c 100644 --- a/net/smc/smc_clc.c +++ b/net/smc/smc_clc.c @@ -952,8 +952,8 @@ int smc_clc_send_proposal(struct smc_sock *smc, struct smc_init_info *ini) gidchids[entry].chid = htons(smc_ism_get_chid(ini->ism_dev[i])); gidchids[entry].gid = htonll(smcd_gid.gid); - if (smc_ism_is_virtual(smcd)) { - /* a virtual ISM device takes two + if (smc_ism_is_emulated(smcd)) { + /* an Emulated-ISM device takes two * entries. CHID of the second entry * repeats that of the first entry. */ @@ -1055,7 +1055,7 @@ smcd_clc_prep_confirm_accept(struct smc_connection *conn, clc->d1.chid = htons(chid); if (eid && eid[0]) memcpy(clc->d1.eid, eid, SMC_MAX_EID_LEN); - if (__smc_ism_is_virtual(chid)) + if (__smc_ism_is_emulated(chid)) clc->d1.gid_ext = htonll(smcd_gid.gid_ext); len = SMCD_CLC_ACCEPT_CONFIRM_LEN_V2; if (first_contact) { diff --git a/net/smc/smc_clc.h b/net/smc/smc_clc.h index a9f9bdd26dcd..7cc7070b9772 100644 --- a/net/smc/smc_clc.h +++ b/net/smc/smc_clc.h @@ -175,7 +175,7 @@ struct smc_clc_msg_proposal { /* clc proposal message sent by Linux */ #define SMCD_CLC_MAX_V2_GID_ENTRIES 8 /* max # of CHID-GID entries in CLC * proposal SMC-Dv2 extension. * each ISM device takes one entry and - * each virtual ISM takes two entries. + * each Emulated-ISM takes two entries */ struct smc_clc_msg_proposal_area { diff --git a/net/smc/smc_core.c b/net/smc/smc_core.c index e4c858411207..9b84d5897aa5 100644 --- a/net/smc/smc_core.c +++ b/net/smc/smc_core.c @@ -1535,7 +1535,7 @@ void smc_smcd_terminate(struct smcd_dev *dev, struct smcd_gid *peer_gid, list_for_each_entry_safe(lgr, l, &dev->lgr_list, list) { if ((!peer_gid->gid || (lgr->peer_gid.gid == peer_gid->gid && - !smc_ism_is_virtual(dev) ? 1 : + !smc_ism_is_emulated(dev) ? 1 : lgr->peer_gid.gid_ext == peer_gid->gid_ext)) && (vlan == VLAN_VID_MASK || lgr->vlan_id == vlan)) { if (peer_gid->gid) /* peer triggered termination */ @@ -1881,7 +1881,7 @@ static bool smcd_lgr_match(struct smc_link_group *lgr, lgr->smcd != smcismdev) return false; - if (smc_ism_is_virtual(smcismdev) && + if (smc_ism_is_emulated(smcismdev) && lgr->peer_gid.gid_ext != peer_gid->gid_ext) return false; diff --git a/net/smc/smc_ism.h b/net/smc/smc_ism.h index ffff40c30a06..165cd013404b 100644 --- a/net/smc/smc_ism.h +++ b/net/smc/smc_ism.h @@ -15,7 +15,7 @@ #include "smc.h" -#define SMC_VIRTUAL_ISM_CHID_MASK 0xFF00 +#define SMC_EMULATED_ISM_CHID_MASK 0xFF00 #define SMC_ISM_IDENT_MASK 0x00FFFF struct smcd_dev_list { /* List of SMCD devices */ @@ -66,10 +66,10 @@ static inline int smc_ism_write(struct smcd_dev *smcd, u64 dmb_tok, return rc < 0 ? rc : 0; } -static inline bool __smc_ism_is_virtual(u16 chid) +static inline bool __smc_ism_is_emulated(u16 chid) { /* CHIDs in range of 0xFF00 to 0xFFFF are reserved - * for virtual ISM device. + * for Emulated-ISM device. * * loopback-ism: 0xFFFF * virtio-ism: 0xFF00 ~ 0xFFFE @@ -77,11 +77,11 @@ static inline bool __smc_ism_is_virtual(u16 chid) return ((chid & 0xFF00) == 0xFF00); } -static inline bool smc_ism_is_virtual(struct smcd_dev *smcd) +static inline bool smc_ism_is_emulated(struct smcd_dev *smcd) { u16 chid = smcd->ops->get_chid(smcd); - return __smc_ism_is_virtual(chid); + return __smc_ism_is_emulated(chid); } #endif