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-rw-r--r--net/smc/smc.h4
-rw-r--r--net/smc/smc_cdc.c6
2 files changed, 10 insertions, 0 deletions
diff --git a/net/smc/smc.h b/net/smc/smc.h
index 1a084afa7372..1e9113771600 100644
--- a/net/smc/smc.h
+++ b/net/smc/smc.h
@@ -143,6 +143,9 @@ struct smc_connection {
* .prod cf. TCP snd_nxt
* .cons cf. TCP sends ack
*/
+ union smc_host_cursor local_tx_ctrl_fin;
+ /* prod crsr - confirmed by peer
+ */
union smc_host_cursor tx_curs_prep; /* tx - prepared data
* snd_max..wmem_alloc
*/
@@ -154,6 +157,7 @@ struct smc_connection {
*/
atomic_t sndbuf_space; /* remaining space in sndbuf */
u16 tx_cdc_seq; /* sequence # for CDC send */
+ u16 tx_cdc_seq_fin; /* sequence # - tx completed */
spinlock_t send_lock; /* protect wr_sends */
struct delayed_work tx_work; /* retry of smc_cdc_msg_send */
u32 tx_off; /* base offset in peer rmb */
diff --git a/net/smc/smc_cdc.c b/net/smc/smc_cdc.c
index f64589d823aa..c5e33296e55c 100644
--- a/net/smc/smc_cdc.c
+++ b/net/smc/smc_cdc.c
@@ -47,6 +47,9 @@ static void smc_cdc_tx_handler(struct smc_wr_tx_pend_priv *pnd_snd,
/* guarantee 0 <= sndbuf_space <= sndbuf_desc->len */
smp_mb__after_atomic();
smc_curs_copy(&conn->tx_curs_fin, &cdcpend->cursor, conn);
+ smc_curs_copy(&conn->local_tx_ctrl_fin, &cdcpend->p_cursor,
+ conn);
+ conn->tx_cdc_seq_fin = cdcpend->ctrl_seq;
}
smc_tx_sndbuf_nonfull(smc);
bh_unlock_sock(&smc->sk);
@@ -104,6 +107,9 @@ int smc_cdc_msg_send(struct smc_connection *conn,
if (!rc) {
smc_curs_copy(&conn->rx_curs_confirmed, &cfed, conn);
conn->local_rx_ctrl.prod_flags.cons_curs_upd_req = 0;
+ } else {
+ conn->tx_cdc_seq--;
+ conn->local_tx_ctrl.seqno = conn->tx_cdc_seq;
}
return rc;