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authorliuyacan <liuyacan@corp.netease.com>2022-05-24 17:02:30 +0800
committerJakub Kicinski <kuba@kernel.org>2022-05-24 11:32:02 -0700
commit9029ac03f20a5999bc5627277c6cf008ab8e23ed (patch)
tree52d7c56b5896ce06d3446c21b53d0980b44be40f /net/smc
parent48a75b979940f8aa838143e976455aa0e629e638 (diff)
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Revert "net/smc: fix listen processing for SMC-Rv2"
This reverts commit 8c3b8dc5cc9bf6d273ebe18b16e2d6882bcfb36d. 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: 8c3b8dc5cc9b ("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>
Diffstat (limited to 'net/smc')
-rw-r--r--net/smc/af_smc.c44
1 files changed, 17 insertions, 27 deletions
diff --git a/net/smc/af_smc.c b/net/smc/af_smc.c
index 1a556f47f89e..a201bf29af98 100644
--- a/net/smc/af_smc.c
+++ b/net/smc/af_smc.c
@@ -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;