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Revert "net/smc: fix listen processing for SMC-Rv2" 

This reverts commit 8c3b8dc5cc.

Some rollback issue will be fixed in other patches in the future.

Link: https://lore.kernel.org/all/20220523055056.2078994-1-liuyacan@corp.netease.com/

Fixes: 8c3b8dc5cc ("net/smc: fix listen processing for SMC-Rv2")
Signed-off-by: liuyacan <liuyacan@corp.netease.com>
Link: https://lore.kernel.org/r/20220524090230.2140302-1-liuyacan@corp.netease.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
liuyacan 2022-05-24 17:02:30 +08:00 коммит произвёл Jakub Kicinski
Родитель 48a75b9799
Коммит 9029ac03f2
1 изменённых файлов: 17 добавлений и 27 удалений
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44
net/smc/af_smc.c
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@ -2118,13 +2118,13 @@ static int smc_listen_rdma_reg(struct smc_sock *new_smc, bool local_first)
return 0;
}
static int smc_find_rdma_v2_device_serv(struct smc_sock *new_smc,
struct smc_clc_msg_proposal *pclc,
struct smc_init_info *ini)
static void smc_find_rdma_v2_device_serv(struct smc_sock *new_smc,
struct smc_clc_msg_proposal *pclc,
struct smc_init_info *ini)
{
struct smc_clc_v2_extension *smc_v2_ext;
u8 smcr_version;
int rc = 0;
int rc;
if (!(ini->smcr_version & SMC_V2) || !smcr_indicated(ini->smc_type_v2))
goto not_found;
@ -2142,31 +2142,26 @@ static int smc_find_rdma_v2_device_serv(struct smc_sock *new_smc,
ini->smcrv2.saddr = new_smc->clcsock->sk->sk_rcv_saddr;
ini->smcrv2.daddr = smc_ib_gid_to_ipv4(smc_v2_ext->roce);
rc = smc_find_rdma_device(new_smc, ini);
if (rc)
if (rc) {
smc_find_ism_store_rc(rc, ini);
goto not_found;
}
if (!ini->smcrv2.uses_gateway)
memcpy(ini->smcrv2.nexthop_mac, pclc->lcl.mac, ETH_ALEN);
smcr_version = ini->smcr_version;
ini->smcr_version = SMC_V2;
rc = smc_listen_rdma_init(new_smc, ini);
if (rc) {
ini->smcr_version = smcr_version;
goto not_found;
}
rc = smc_listen_rdma_reg(new_smc, ini->first_contact_local);
if (rc) {
ini->smcr_version = smcr_version;
goto not_found;
}
return 0;
if (!rc)
rc = smc_listen_rdma_reg(new_smc, ini->first_contact_local);
if (!rc)
return;
ini->smcr_version = smcr_version;
smc_find_ism_store_rc(rc, ini);
not_found:
rc = rc ?: SMC_CLC_DECL_NOSMCDEV;
ini->smcr_version &= ~SMC_V2;
ini->check_smcrv2 = false;
return rc;
}
static int smc_find_rdma_v1_device_serv(struct smc_sock *new_smc,
@ -2199,7 +2194,6 @@ static int smc_listen_find_device(struct smc_sock *new_smc,
struct smc_init_info *ini)
{
int prfx_rc;
int rc;
/* check for ISM device matching V2 proposed device */
smc_find_ism_v2_device_serv(new_smc, pclc, ini);
@ -2227,18 +2221,14 @@ static int smc_listen_find_device(struct smc_sock *new_smc,
return ini->rc ?: SMC_CLC_DECL_NOSMCDDEV;
/* check if RDMA V2 is available */
rc = smc_find_rdma_v2_device_serv(new_smc, pclc, ini);
if (!rc)
smc_find_rdma_v2_device_serv(new_smc, pclc, ini);
if (ini->smcrv2.ib_dev_v2)
return 0;
/* skip V1 check if V2 is unavailable for non-Device reason */
if (rc != SMC_CLC_DECL_NOSMCDEV &&
rc != SMC_CLC_DECL_NOSMCRDEV &&
rc != SMC_CLC_DECL_NOSMCDDEV)
return rc;
/* check if RDMA V1 is available */
if (!prfx_rc) {
int rc;
rc = smc_find_rdma_v1_device_serv(new_smc, pclc, ini);
smc_find_ism_store_rc(rc, ini);
return (!rc) ? 0 : ini->rc;