diff options
Diffstat (limited to 'net/smc/smc_llc.c')
-rw-r--r-- | net/smc/smc_llc.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/net/smc/smc_llc.c b/net/smc/smc_llc.c index e478a4c11877..3a25b6ebe3a8 100644 --- a/net/smc/smc_llc.c +++ b/net/smc/smc_llc.c @@ -541,6 +541,30 @@ static int smc_llc_send_message(struct smc_link *link, void *llcbuf) /********************************* receive ***********************************/ +static int smc_llc_alloc_alt_link(struct smc_link_group *lgr, + enum smc_lgr_type lgr_new_t) +{ + int i; + + if (lgr->type == SMC_LGR_SYMMETRIC || + (lgr->type != SMC_LGR_SINGLE && + (lgr_new_t == SMC_LGR_ASYMMETRIC_LOCAL || + lgr_new_t == SMC_LGR_ASYMMETRIC_PEER))) + return -EMLINK; + + if (lgr_new_t == SMC_LGR_ASYMMETRIC_LOCAL || + lgr_new_t == SMC_LGR_ASYMMETRIC_PEER) { + for (i = SMC_LINKS_PER_LGR_MAX - 1; i >= 0; i--) + if (lgr->lnk[i].state == SMC_LNK_UNUSED) + return i; + } else { + for (i = 0; i < SMC_LINKS_PER_LGR_MAX; i++) + if (lgr->lnk[i].state == SMC_LNK_UNUSED) + return i; + } + return -EMLINK; +} + static void smc_llc_rx_delete_link(struct smc_link *link, struct smc_llc_msg_del_link *llc) { |