From patchwork Thu Oct 22 10:10:16 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Rohit Maheshwari X-Patchwork-Id: 288190 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 70868C388F7 for ; Thu, 22 Oct 2020 10:10:49 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 28591223FB for ; Thu, 22 Oct 2020 10:10:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2896373AbgJVKKs (ORCPT ); Thu, 22 Oct 2020 06:10:48 -0400 Received: from stargate.chelsio.com ([12.32.117.8]:6700 "EHLO stargate.chelsio.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2896368AbgJVKKr (ORCPT ); Thu, 22 Oct 2020 06:10:47 -0400 Received: from localhost.localdomain (redhouse.blr.asicdesigners.com [10.193.185.57]) by stargate.chelsio.com (8.13.8/8.13.8) with ESMTP id 09MAAK5f013211; Thu, 22 Oct 2020 03:10:43 -0700 From: Rohit Maheshwari To: kuba@kernel.org, netdev@vger.kernel.org, davem@davemloft.net Cc: secdev@chelsio.com, Rohit Maheshwari Subject: [net 4/7] ch_ktls: Correction in middle record handling Date: Thu, 22 Oct 2020 15:40:16 +0530 Message-Id: <20201022101019.7363-5-rohitm@chelsio.com> X-Mailer: git-send-email 2.18.1 In-Reply-To: <20201022101019.7363-1-rohitm@chelsio.com> References: <20201022101019.7363-1-rohitm@chelsio.com> Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org 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 --- .../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);