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[144.49.247.21]) by smtp-relay.gmail.com with ESMTPS id af79cd13be357-90fabbfe7a1sm1037985a.7.2026.05.12.14.22.00 for (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Tue, 12 May 2026 14:22:01 -0700 (PDT) X-Relaying-Domain: broadcom.com X-CFilter-Loop: Reflected Received: by mail-dl1-f72.google.com with SMTP id a92af1059eb24-1306c2f7037so6219508c88.0 for ; Tue, 12 May 2026 14:22:00 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=broadcom.com; s=google; t=1778620920; x=1779225720; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=u3YxazkQEDn9UMv8up9LpnGm2yGMYAtYAUmv1kwoU20=; b=XKcEj0+wN+SpNG+MUJPYhbmCOSngGIIt8qQFVUuqX5eEIY1QRLmfeIJCdvyYI8eJNc NCOqyac1TjQosDuTMPL2VOLdQAKHTRjieO44OLGkCO8cUkRk6/6aBgid108ADJlRmzht qyH9Ke0WYVKW3TasGZP6Qjok3Efrov8Ae1JDU= X-Received: by 2002:a05:7022:1284:b0:128:ca83:5aa1 with SMTP id a92af1059eb24-1349a9312bcmr75209c88.16.1778620919673; Tue, 12 May 2026 14:21:59 -0700 (PDT) X-Received: by 2002:a05:7022:1284:b0:128:ca83:5aa1 with SMTP id a92af1059eb24-1349a9312bcmr75187c88.16.1778620919082; Tue, 12 May 2026 14:21:59 -0700 (PDT) Received: from lvnvda3289.lvn.broadcom.net ([192.19.161.250]) by smtp.gmail.com with ESMTPSA id a92af1059eb24-132787673ffsm26603202c88.15.2026.05.12.14.21.57 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 12 May 2026 14:21:57 -0700 (PDT) From: Michael Chan To: davem@davemloft.net Cc: netdev@vger.kernel.org, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, andrew+netdev@lunn.ch, pavan.chebbi@broadcom.com, andrew.gospodarek@broadcom.com Subject: [PATCH net-next v2 14/15] bnxt_en: Add support for inline transmit BDs Date: Tue, 12 May 2026 14:21:04 -0700 Message-ID: <20260512212105.3488258-15-michael.chan@broadcom.com> X-Mailer: git-send-email 2.45.4 In-Reply-To: <20260512212105.3488258-1-michael.chan@broadcom.com> References: <20260512212105.3488258-1-michael.chan@broadcom.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-DetectorID-Processed: b00c1d49-9d2e-4205-b15f-d015386d3d5e Newer chips (P5_PLUS) support inline transmit BDs that contain extra data. One such use case is to transmit out-of-sequence kTLS packets with encryption enabled. To account for these inline BDs during TX completion, we add the inline_data_bds field to struct bnxt_sw_tx_bd (tx_buf). tx_buf->is_push will always be set when sending these inline BDs as the operation is similar to push packets. tx_buf->skb will always be NULL as there is no associated SKB. The next patch will make use of this feature. Reviewed-by: Andy Gospodarek Signed-off-by: Michael Chan --- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 15 ++++++++++++--- drivers/net/ethernet/broadcom/bnxt/bnxt.h | 1 + 2 files changed, 13 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index 7cae7e3024ab..89c900db45ba 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -842,7 +842,7 @@ static bool __bnxt_tx_int(struct bnxt *bp, struct bnxt_tx_ring_info *txr, head_buf = tx_buf; skb = tx_buf->skb; - if (unlikely(!skb)) { + if (unlikely(!skb && !tx_buf->is_push)) { bnxt_sched_reset_txr(bp, txr, cons); return rc; } @@ -854,13 +854,22 @@ static bool __bnxt_tx_int(struct bnxt *bp, struct bnxt_tx_ring_info *txr, } cons = NEXT_TX(cons); - tx_pkts++; - tx_bytes += skb->len; + if (skb) { + tx_pkts++; + tx_bytes += skb->len; + } tx_buf->skb = NULL; tx_buf->is_ts_pkt = 0; if (tx_buf->is_push) { tx_buf->is_push = 0; + cons += tx_buf->inline_data_bds; + tx_buf->inline_data_bds = 0; + if (!skb) { + /* presync BD */ + cons = NEXT_TX(cons); + continue; + } goto next_tx_int; } diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h b/drivers/net/ethernet/broadcom/bnxt/bnxt.h index ab3a86634a20..e0880b8c4b73 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h @@ -917,6 +917,7 @@ struct bnxt_sw_tx_bd { u8 is_push; u8 is_sw_gso; u8 action; + u8 inline_data_bds; unsigned short nr_frags; union { u16 rx_prod; -- 2.51.0