If a record starts in middle, reset TCB UNA so that
we could avoid sending out extra packet which is
needed to make it 16 byte aligned to start AES CTR.
Signed-off-by: Rohit Maheshwari <roh...@chelsio.com>
---
.../chelsio/inline_crypto/ch_ktls/chcr_ktls.c | 21 +++++++++++++------
1 file changed, 15 insertions(+), 6 deletions(-)
diff --git a/drivers/net/ethernet/chelsio/inline_crypto/ch_ktls/chcr_ktls.c
b/drivers/net/ethernet/chelsio/inline_crypto/ch_ktls/chcr_ktls.c
index 9fa8e40ca0bf..ebbc9af9d551 100644
--- a/drivers/net/ethernet/chelsio/inline_crypto/ch_ktls/chcr_ktls.c
+++ b/drivers/net/ethernet/chelsio/inline_crypto/ch_ktls/chcr_ktls.c
@@ -827,11 +827,11 @@ static void *chcr_write_cpl_set_tcb_ulp(struct
chcr_ktls_info *tx_info,
*/
static int chcr_ktls_xmit_tcb_cpls(struct chcr_ktls_info *tx_info,
struct sge_eth_txq *q, u64 tcp_seq,
- u64 tcp_ack, u64 tcp_win)
+ u64 tcp_ack, u64 tcp_win, bool offset)
{
bool first_wr = ((tx_info->prev_ack == 0) && (tx_info->prev_win == 0));
struct ch_ktls_port_stats_debug *port_stats;
- u32 len, cpl = 0, ndesc, wr_len;
+ u32 len, cpl = 0, ndesc, wr_len, wr_mid = 0;
struct fw_ulptx_wr *wr;
int credits;
void *pos;
@@ -847,6 +847,11 @@ static int chcr_ktls_xmit_tcb_cpls(struct chcr_ktls_info
*tx_info,
return NETDEV_TX_BUSY;
}
+ if (unlikely(credits < ETHTXQ_STOP_THRES)) {
+ chcr_eth_txq_stop(q);
+ wr_mid |= FW_WR_EQUEQ_F | FW_WR_EQUIQ_F;
+ }
+
pos = &q->q.desc[q->q.pidx];
/* make space for WR, we'll fill it later when we know all the cpls
* being sent out and have complete length.
@@ -862,7 +867,7 @@ static int chcr_ktls_xmit_tcb_cpls(struct chcr_ktls_info
*tx_info,
cpl++;
}
/* reset snd una if it's a re-transmit pkt */
- if (tcp_seq != tx_info->prev_seq) {
+ if (tcp_seq != tx_info->prev_seq || offset) {
/* reset snd_una */
port_stats =
&tx_info->adap->ch_ktls_stats.ktls_port[tx_info->port_id];
@@ -871,7 +876,8 @@ static int chcr_ktls_xmit_tcb_cpls(struct chcr_ktls_info
*tx_info,
TCB_SND_UNA_RAW_V
(TCB_SND_UNA_RAW_M),
TCB_SND_UNA_RAW_V(0), 0);
- atomic64_inc(&port_stats->ktls_tx_ooo);
+ if (tcp_seq != tx_info->prev_seq)
+ atomic64_inc(&port_stats->ktls_tx_ooo);
cpl++;
}
/* update ack */
@@ -900,7 +906,8 @@ static int chcr_ktls_xmit_tcb_cpls(struct chcr_ktls_info
*tx_info,
wr->op_to_compl = htonl(FW_WR_OP_V(FW_ULPTX_WR));
wr->cookie = 0;
/* fill len in wr field */
- wr->flowid_len16 = htonl(FW_WR_LEN16_V(DIV_ROUND_UP(len, 16)));
+ wr->flowid_len16 = htonl(wr_mid |
+ FW_WR_LEN16_V(DIV_ROUND_UP(len, 16)));
ndesc = DIV_ROUND_UP(len, 64);
chcr_txq_advance(&q->q, ndesc);
@@ -1869,7 +1876,9 @@ static int chcr_ktls_xmit(struct sk_buff *skb, struct
net_device *dev)
ret = chcr_ktls_xmit_tcb_cpls(tx_info, q, tx_max,
ntohl(th->ack_seq),
- ntohs(th->window));
+ ntohs(th->window),
+ tls_end_offset !=
+ record->len);
if (ret) {
spin_unlock_irqrestore(&tx_ctx->base.lock,
flags);
--
2.18.1
