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| author | Karsten Graul <kgraul@linux.ibm.com> | 2020-04-30 15:55:49 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-04-30 12:44:34 -0700 |
| commit | 218b24fe381238941a06496eaf221a22c5935267 (patch) | |
| tree | 50889d00578a3cf3f327700a1dc1a7eb95e9890f /net/smc | |
| parent | 3bc67e098c3e215f6e09ba3c0e1f569e7ae020d0 (diff) | |
| download | linux-218b24fe381238941a06496eaf221a22c5935267.tar.gz linux-218b24fe381238941a06496eaf221a22c5935267.tar.bz2 linux-218b24fe381238941a06496eaf221a22c5935267.zip | |
net/smc: adapt SMC remote DELETE_RKEY processing to use the LLC flow
Use the LLC flow framework for the processing of DELETE_RKEY messages
that were received from the peer.
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')
| -rw-r--r-- | net/smc/smc_llc.c | 37 |
1 files changed, 24 insertions, 13 deletions
diff --git a/net/smc/smc_llc.c b/net/smc/smc_llc.c index b7b5cc01b78e..e458207bde9e 100644 --- a/net/smc/smc_llc.c +++ b/net/smc/smc_llc.c @@ -601,31 +601,37 @@ out: smc_llc_flow_qentry_del(&lgr->llc_flow_rmt); } -static void smc_llc_rx_confirm_rkey_cont(struct smc_link *link, - struct smc_llc_msg_confirm_rkey_cont *llc) -{ - /* ignore rtokens for other links, we have only one link */ - llc->hd.flags |= SMC_LLC_FLAG_RESP; - smc_llc_send_message(link, llc); -} - -static void smc_llc_rx_delete_rkey(struct smc_link *link, - struct smc_llc_msg_delete_rkey *llc) +/* process a delete_rkey request from peer, remote flow */ +static void smc_llc_rmt_delete_rkey(struct smc_link_group *lgr) { + struct smc_llc_msg_delete_rkey *llc; + struct smc_llc_qentry *qentry; + struct smc_link *link; u8 err_mask = 0; int i, max; + qentry = lgr->llc_flow_rmt.qentry; + llc = &qentry->msg.delete_rkey; + link = qentry->link; + max = min_t(u8, llc->num_rkeys, SMC_LLC_DEL_RKEY_MAX); for (i = 0; i < max; i++) { if (smc_rtoken_delete(link, llc->rkey[i])) err_mask |= 1 << (SMC_LLC_DEL_RKEY_MAX - 1 - i); } - if (err_mask) { llc->hd.flags |= SMC_LLC_FLAG_RKEY_NEG; llc->err_mask = err_mask; } + llc->hd.flags |= SMC_LLC_FLAG_RESP; + smc_llc_send_message(link, &qentry->msg); + smc_llc_flow_qentry_del(&lgr->llc_flow_rmt); +} +static void smc_llc_rx_confirm_rkey_cont(struct smc_link *link, + struct smc_llc_msg_confirm_rkey_cont *llc) +{ + /* ignore rtokens for other links, we have only one link */ llc->hd.flags |= SMC_LLC_FLAG_RESP; smc_llc_send_message(link, llc); } @@ -698,8 +704,13 @@ static void smc_llc_event_handler(struct smc_llc_qentry *qentry) smc_llc_rx_confirm_rkey_cont(link, &llc->confirm_rkey_cont); break; case SMC_LLC_DELETE_RKEY: - smc_llc_rx_delete_rkey(link, &llc->delete_rkey); - break; + /* new request from remote, assign to remote flow */ + if (smc_llc_flow_start(&lgr->llc_flow_rmt, qentry)) { + /* process here, does not wait for more llc msgs */ + smc_llc_rmt_delete_rkey(lgr); + smc_llc_flow_stop(lgr, &lgr->llc_flow_rmt); + } + return; } out: kfree(qentry); |