diff options
| author | Karsten Graul <kgraul@linux.ibm.com> | 2020-04-30 16:55:38 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-04-30 22:44:33 +0300 |
| commit | 555da9af827d95134656fa459c8f3ece04dd867a (patch) | |
| tree | f2d35cfc1e42ad9d560cbc09855e8365240586c2 /net/smc/smc_llc.h | |
| parent | 1569a3c44303834680e93df2ecf60f356be9b322 (diff) | |
| download | linux-555da9af827d95134656fa459c8f3ece04dd867a.tar.xz | |
net/smc: add event-based llc_flow framework
The new framework allows to start specific types of LLC control flows,
protects active flows and makes it possible to wait for flows to finish
before starting a new flow.
This mechanism is used for the LLC control layer to model flows like
'add link' or 'delete link' which need to send/receive several LLC
messages and are not allowed to get interrupted by the wrong type of
messages.
'Add link' or 'Delete link' messages arriving in the middle of a flow
are delayed and processed when the current flow finished.
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.h')
| -rw-r--r-- | net/smc/smc_llc.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/net/smc/smc_llc.h b/net/smc/smc_llc.h index 66063f22166b..49e99ff00ee7 100644 --- a/net/smc/smc_llc.h +++ b/net/smc/smc_llc.h @@ -63,6 +63,14 @@ int smc_llc_do_confirm_rkey(struct smc_link *link, struct smc_buf_desc *rmb_desc); int smc_llc_do_delete_rkey(struct smc_link *link, struct smc_buf_desc *rmb_desc); +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); +struct smc_llc_qentry *smc_llc_wait(struct smc_link_group *lgr, + struct smc_link *lnk, + int time_out, u8 exp_msg); +struct smc_llc_qentry *smc_llc_flow_qentry_clr(struct smc_llc_flow *flow); +void smc_llc_flow_qentry_del(struct smc_llc_flow *flow); int smc_llc_init(void) __init; #endif /* SMC_LLC_H */ |