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Diffstat (limited to 'net/smc/af_smc.c')
-rw-r--r--net/smc/af_smc.c46
1 files changed, 28 insertions, 18 deletions
diff --git a/net/smc/af_smc.c b/net/smc/af_smc.c
index 5f70642a8044..1a556f47f89e 100644
--- a/net/smc/af_smc.c
+++ b/net/smc/af_smc.c
@@ -1584,11 +1584,11 @@ static int smc_connect(struct socket *sock, struct sockaddr *addr,
if (rc && rc != -EINPROGRESS)
goto out;
- sock_hold(&smc->sk); /* sock put in passive closing */
if (smc->use_fallback) {
sock->state = rc ? SS_CONNECTING : SS_CONNECTED;
goto out;
}
+ sock_hold(&smc->sk); /* sock put in passive closing */
if (flags & O_NONBLOCK) {
if (queue_work(smc_hs_wq, &smc->connect_work))
smc->connect_nonblock = 1;
@@ -2118,13 +2118,13 @@ static int smc_listen_rdma_reg(struct smc_sock *new_smc, bool local_first)
return 0;
}
-static void smc_find_rdma_v2_device_serv(struct smc_sock *new_smc,
- struct smc_clc_msg_proposal *pclc,
- struct smc_init_info *ini)
+static int 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;
+ int rc = 0;
if (!(ini->smcr_version & SMC_V2) || !smcr_indicated(ini->smc_type_v2))
goto not_found;
@@ -2142,26 +2142,31 @@ static void 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) {
- smc_find_ism_store_rc(rc, ini);
+ if (rc)
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)
- 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);
+ 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;
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,
@@ -2194,6 +2199,7 @@ 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);
@@ -2221,14 +2227,18 @@ static int smc_listen_find_device(struct smc_sock *new_smc,
return ini->rc ?: SMC_CLC_DECL_NOSMCDDEV;
/* check if RDMA V2 is available */
- smc_find_rdma_v2_device_serv(new_smc, pclc, ini);
- if (ini->smcrv2.ib_dev_v2)
+ rc = smc_find_rdma_v2_device_serv(new_smc, pclc, ini);
+ if (!rc)
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;