diff options
| author | Karsten Graul <kgraul@linux.ibm.com> | 2020-04-30 15:55:41 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-04-30 12:44:33 -0700 |
| commit | 92334cfcb3a2a102dc1b23513bbe2fca4347e2d6 (patch) | |
| tree | ae51b9144ab95354dbe71a17a8adb0898db60631 | |
| parent | 81e6e5e70df46bb5b205e53f2b7885e49a9d4974 (diff) | |
| download | linux-92334cfcb3a2a102dc1b23513bbe2fca4347e2d6.tar.bz2 | |
net/smc: add logic to evaluate CONFIRM_LINK messages to LLC layer
Introduce smc_llc_eval_conf_link() to evaluate the CONFIRM_LINK message
contents. This implements this logic at the LLC layer. The function will
be used by af_smc.c to process the received LLC layer messages.
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>
| -rw-r--r-- | net/smc/smc_llc.c | 11 | ||||
| -rw-r--r-- | net/smc/smc_llc.h | 2 |
2 files changed, 13 insertions, 0 deletions
diff --git a/net/smc/smc_llc.c b/net/smc/smc_llc.c index a146b3b43580..9248b90fe37e 100644 --- a/net/smc/smc_llc.c +++ b/net/smc/smc_llc.c @@ -946,6 +946,17 @@ out: return rc; } +/* evaluate confirm link request or response */ +int smc_llc_eval_conf_link(struct smc_llc_qentry *qentry, + enum smc_llc_reqresp type) +{ + if (type == SMC_LLC_REQ) /* SMC server assigns link_id */ + qentry->link->link_id = qentry->msg.confirm_link.link_num; + if (!(qentry->msg.raw.hdr.flags & SMC_LLC_FLAG_NO_RMBE_EYEC)) + return -ENOTSUPP; + return 0; +} + /***************************** init, exit, misc ******************************/ static struct smc_wr_rx_handler smc_llc_rx_handlers[] = { diff --git a/net/smc/smc_llc.h b/net/smc/smc_llc.h index 49e99ff00ee7..637acf91ffb7 100644 --- a/net/smc/smc_llc.h +++ b/net/smc/smc_llc.h @@ -66,6 +66,8 @@ int smc_llc_do_delete_rkey(struct smc_link *link, int smc_llc_flow_initiate(struct smc_link_group *lgr, enum smc_llc_flowtype type); void smc_llc_flow_stop(struct smc_link_group *lgr, struct smc_llc_flow *flow); +int smc_llc_eval_conf_link(struct smc_llc_qentry *qentry, + enum smc_llc_reqresp type); struct smc_llc_qentry *smc_llc_wait(struct smc_link_group *lgr, struct smc_link *lnk, int time_out, u8 exp_msg); |