[PATCH net-next 08/18] net/smc: enable virtual ISM device feature bit
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STALE1116d
SUPERSEDED
From: Wen Gu <guwen@linux.alibaba.com>
Date: 2023-09-19 14:43:15
Also in:
linux-s390, lkml
Subsystem:
networking [general], shared memory communications (smc) sockets, the rest · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, D. Wythe, Dust Li, Sidraya Jayagond, Mahanta Jambigi, Linus Torvalds
Revision v1 of 2 in this series.
Revisions (2)
- v1 current
- v4 [diff vs current]
This patch enables the first supplement feature of SMCv2.1, that is the support for virtual ISM devices. Signed-off-by: Wen Gu <guwen@linux.alibaba.com> --- net/smc/af_smc.c | 2 ++ net/smc/smc.h | 7 +++++++ 2 files changed, 9 insertions(+)
diff --git a/net/smc/af_smc.c b/net/smc/af_smc.c
index 9e31033..7eab600 100644
--- a/net/smc/af_smc.c
+++ b/net/smc/af_smc.c@@ -1522,6 +1522,7 @@ 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)) {
@@ -1987,6 +1988,7 @@ 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 24745fd..71b9640 100644
--- a/net/smc/smc.h
+++ b/net/smc/smc.h@@ -58,6 +58,13 @@ enum smc_state { /* possible states of an SMC socket */ SMC_PROCESSABORT = 27, }; +enum smc_supp_feature { /* supplemental features supported by current version */ + SMC_SPF_VIRT_ISM_DEV = 0, +}; + +#define SMC_FEATURE_MASK \ + (BIT(SMC_SPF_VIRT_ISM_DEV)) + struct smc_link_group; struct smc_wr_rx_hdr { /* common prefix part of LLC and CDC to demultiplex */
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1.8.3.1