diff options
| author | Ursula Braun <ubraun@linux.ibm.com> | 2020-09-10 18:48:24 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-09-10 15:24:26 -0700 |
| commit | 7b2977d0830493452f1afaa8d8e1b4f8248df9d1 (patch) | |
| tree | 5c0a1c2d49cd070db002b2ea378bb3026e1e7355 /net/smc | |
| parent | 3d9725a6a1330bed78f452ba3b171b24d9b83ac7 (diff) | |
| download | linux-7b2977d0830493452f1afaa8d8e1b4f8248df9d1.tar.bz2 | |
net/smc: improve server ISM device determination
Move check whether peer can be reached into smc_pnet_find_ism_by_pnetid().
Thus searching continues for another ism device, if check fails.
Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/smc')
| -rw-r--r-- | net/smc/af_smc.c | 17 | ||||
| -rw-r--r-- | net/smc/smc_clc.h | 1 | ||||
| -rw-r--r-- | net/smc/smc_pnet.c | 5 |
3 files changed, 7 insertions, 16 deletions
diff --git a/net/smc/af_smc.c b/net/smc/af_smc.c index fa97144690e0..f27a596b2624 100644 --- a/net/smc/af_smc.c +++ b/net/smc/af_smc.c @@ -1188,26 +1188,12 @@ static int smc_listen_ism_init(struct smc_sock *new_smc, struct smc_clc_msg_proposal *pclc, struct smc_init_info *ini) { - struct smc_clc_msg_smcd *pclc_smcd; int rc; - pclc_smcd = smc_get_clc_msg_smcd(pclc); - ini->ism_peer_gid = pclc_smcd->gid; rc = smc_conn_create(new_smc, ini); if (rc) return rc; - /* Check if peer can be reached via ISM device */ - if (smc_ism_cantalk(new_smc->conn.lgr->peer_gid, - new_smc->conn.lgr->vlan_id, - new_smc->conn.lgr->smcd)) { - if (ini->first_contact_local) - smc_lgr_cleanup_early(&new_smc->conn); - else - smc_conn_free(&new_smc->conn); - return SMC_CLC_DECL_SMCDNOTALK; - } - /* Create send and receive buffers */ rc = smc_buf_create(new_smc, true); if (rc) { @@ -1338,7 +1324,10 @@ static void smc_listen_work(struct work_struct *work) /* check if ISM is available */ if (pclc->hdr.path == SMC_TYPE_D || pclc->hdr.path == SMC_TYPE_B) { + struct smc_clc_msg_smcd *pclc_smcd = smc_get_clc_msg_smcd(pclc); + ini.is_smcd = true; /* prepare ISM check */ + ini.ism_peer_gid = pclc_smcd->gid; rc = smc_find_ism_device(new_smc, &ini); if (!rc) rc = smc_listen_ism_init(new_smc, pclc, &ini); diff --git a/net/smc/smc_clc.h b/net/smc/smc_clc.h index fda474e91f95..fcd8521c7737 100644 --- a/net/smc/smc_clc.h +++ b/net/smc/smc_clc.h @@ -37,7 +37,6 @@ #define SMC_CLC_DECL_NOSMCDEV 0x03030000 /* no SMC device found (R or D) */ #define SMC_CLC_DECL_NOSMCDDEV 0x03030001 /* no SMC-D device found */ #define SMC_CLC_DECL_NOSMCRDEV 0x03030002 /* no SMC-R device found */ -#define SMC_CLC_DECL_SMCDNOTALK 0x03030003 /* SMC-D dev can't talk to peer */ #define SMC_CLC_DECL_MODEUNSUPP 0x03040000 /* smc modes do not match (R or D)*/ #define SMC_CLC_DECL_RMBE_EC 0x03050000 /* peer has eyecatcher in RMBE */ #define SMC_CLC_DECL_OPTUNSUPP 0x03060000 /* fastopen sockopt not supported */ diff --git a/net/smc/smc_pnet.c b/net/smc/smc_pnet.c index 30e5fac7034e..70684c49510e 100644 --- a/net/smc/smc_pnet.c +++ b/net/smc/smc_pnet.c @@ -928,7 +928,10 @@ static void smc_pnet_find_ism_by_pnetid(struct net_device *ndev, mutex_lock(&smcd_dev_list.mutex); list_for_each_entry(ismdev, &smcd_dev_list.list, list) { if (smc_pnet_match(ismdev->pnetid, ndev_pnetid) && - !ismdev->going_away) { + !ismdev->going_away && + (!ini->ism_peer_gid || + !smc_ism_cantalk(ini->ism_peer_gid, ini->vlan_id, + ismdev))) { ini->ism_dev = ismdev; break; } |