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Message-Id: <1701920994-73705-5-git-send-email-guwen@linux.alibaba.com>
Date: Thu, 7 Dec 2023 11:49:49 +0800
From: Wen Gu <guwen@...ux.alibaba.com>
To: wintera@...ux.ibm.com, wenjia@...ux.ibm.com, hca@...ux.ibm.com,
gor@...ux.ibm.com, agordeev@...ux.ibm.com, davem@...emloft.net,
edumazet@...gle.com, kuba@...nel.org, pabeni@...hat.com,
kgraul@...ux.ibm.com, jaka@...ux.ibm.com
Cc: borntraeger@...ux.ibm.com, svens@...ux.ibm.com,
alibuda@...ux.alibaba.com, tonylu@...ux.alibaba.com,
guwen@...ux.alibaba.com, raspl@...ux.ibm.com,
schnelle@...ux.ibm.com, guangguan.wang@...ux.alibaba.com,
linux-s390@...r.kernel.org, netdev@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH net-next v4 4/9] net/smc: introduce virtual ISM device support feature
This introduces virtual ISM device support feature to SMCv2.1 as the
first supplemental feature.
Signed-off-by: Wen Gu <guwen@...ux.alibaba.com>
---
net/smc/af_smc.c | 2 ++
net/smc/smc.h | 9 ++++++---
2 files changed, 8 insertions(+), 3 deletions(-)
diff --git a/net/smc/af_smc.c b/net/smc/af_smc.c
index 7fc2f3c..0c4f975 100644
--- a/net/smc/af_smc.c
+++ b/net/smc/af_smc.c
@@ -1520,6 +1520,7 @@ static int __smc_connect(struct smc_sock *smc)
ini->smcr_version = SMC_V1 | SMC_V2;
ini->smc_type_v1 = SMC_TYPE_B;
ini->smc_type_v2 = SMC_TYPE_B;
+ ini->feature_mask = SMC_FEATURE_MASK;
/* get vlan id from IP device */
if (smc_vlan_by_tcpsk(smc->clcsock, ini)) {
@@ -1985,6 +1986,7 @@ static int smc_listen_v2_check(struct smc_sock *new_smc,
ini->smc_type_v2 = pclc->hdr.typev2;
ini->smcd_version = smcd_indicated(ini->smc_type_v1) ? SMC_V1 : 0;
ini->smcr_version = smcr_indicated(ini->smc_type_v1) ? SMC_V1 : 0;
+ ini->feature_mask = SMC_FEATURE_MASK;
if (pclc->hdr.version > SMC_V1) {
if (smcd_indicated(ini->smc_type_v2))
ini->smcd_version |= SMC_V2;
diff --git a/net/smc/smc.h b/net/smc/smc.h
index 903b151..9929d1e 100644
--- a/net/smc/smc.h
+++ b/net/smc/smc.h
@@ -58,9 +58,12 @@ enum smc_state { /* possible states of an SMC socket */
SMC_PROCESSABORT = 27,
};
-#define SMC_FEATURE_MASK 0 /* bitmask of
- * supported supplemental features
- */
+enum smc_supplemental_features {
+ SMC_SPF_VIRT_ISM_DEV = 0,
+};
+
+#define SMC_FEATURE_MASK \
+ (BIT(SMC_SPF_VIRT_ISM_DEV))
struct smc_link_group;
--
1.8.3.1
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