diff options
| author | Karsten Graul <kgraul@linux.ibm.com> | 2020-05-03 15:38:45 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-05-04 02:07:01 +0300 |
| commit | 1551c95b61242b1a20565bae8d711f35a601c4f3 (patch) | |
| tree | a8430a9385ead6403bb5c44d44ed13650fbdf59c /net/smc/smc_llc.c | |
| parent | 57b499242cb888a32815f8663b60338bcb0b5747 (diff) | |
| download | linux-1551c95b61242b1a20565bae8d711f35a601c4f3.tar.xz | |
net/smc: final part of add link processing as SMC server
This patch finalizes the ADD_LINK processing of new links. Send the
CONFIRM_LINK request to the peer, receive the response and set link
state to ACTIVE.
Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Reviewed-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/smc/smc_llc.c')
| -rw-r--r-- | net/smc/smc_llc.c | 29 |
1 files changed, 28 insertions, 1 deletions
diff --git a/net/smc/smc_llc.c b/net/smc/smc_llc.c index de73432bd72f..1fefee55e293 100644 --- a/net/smc/smc_llc.c +++ b/net/smc/smc_llc.c @@ -904,6 +904,33 @@ out: return rc; } +static int smc_llc_srv_conf_link(struct smc_link *link, + struct smc_link *link_new, + enum smc_lgr_type lgr_new_t) +{ + struct smc_link_group *lgr = link->lgr; + struct smc_llc_qentry *qentry = NULL; + int rc; + + /* send CONFIRM LINK request over the RoCE fabric */ + rc = smc_llc_send_confirm_link(link_new, SMC_LLC_REQ); + if (rc) + return -ENOLINK; + /* receive CONFIRM LINK response over the RoCE fabric */ + qentry = smc_llc_wait(lgr, link, SMC_LLC_WAIT_FIRST_TIME, + SMC_LLC_CONFIRM_LINK); + if (!qentry) { + /* send DELETE LINK */ + smc_llc_send_delete_link(link, link_new->link_id, SMC_LLC_REQ, + false, SMC_LLC_DEL_LOST_PATH); + return -ENOLINK; + } + smc_llc_link_active(link_new); + lgr->type = lgr_new_t; + smc_llc_flow_qentry_del(&lgr->llc_flow_lcl); + return 0; +} + int smc_llc_srv_add_link(struct smc_link *link) { enum smc_lgr_type lgr_new_t = SMC_LGR_SYMMETRIC; @@ -967,7 +994,7 @@ int smc_llc_srv_add_link(struct smc_link *link) rc = smc_llc_srv_rkey_exchange(link, link_new); if (rc) goto out_err; - /* tbd: rc = smc_llc_srv_conf_link(link, link_new, lgr_new_t); */ + rc = smc_llc_srv_conf_link(link, link_new, lgr_new_t); if (rc) goto out_err; return 0; |