From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-yx1-f100.google.com (mail-yx1-f100.google.com [74.125.224.100]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 41E9136DA04 for ; Fri, 10 Jul 2026 04:25:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=74.125.224.100 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783657508; cv=none; b=W6aUGncixHtqBID2nFtwNBQjYE7egx/zwtXl5p8UwBSZQvxDiVT4f3OMrcBIYhJApq5jySccHZxHV+9PhdvlWd2E28KI3VU8318bUNFldELaHEcVsA83b1hUBEJGryvBmCQ5QrnJ/ZcluVB5hRUMYOtfG6PazUjoo9g6EJ0EjRM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783657508; c=relaxed/simple; bh=pxVfFdGMeoPFAzQz3b0G659QHf4W+V36L+U/AiiMtCc=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=D+ZcjpgBLUIeLOMgLcdEt7vxojjEPlwFdCnqwc+ZG4Ze8QmuJ7duMVVKZPNeOD+sbTLoD5APfIWOYDGE6TEpsTv/9ZYZtEiBKzRNvYrkokfBqw3DRkLyTyjvzVjohVBPWU76UcfCDVg9Ygo2j1/b3D6beBcRGBSRaJyDdbuRUzs= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=broadcom.com; spf=fail smtp.mailfrom=broadcom.com; dkim=pass (1024-bit key) header.d=broadcom.com header.i=@broadcom.com header.b=fBjFVnXe; arc=none smtp.client-ip=74.125.224.100 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=broadcom.com Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=broadcom.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=broadcom.com header.i=@broadcom.com header.b="fBjFVnXe" Received: by mail-yx1-f100.google.com with SMTP id 956f58d0204a3-66628618509so659417d50.2 for ; Thu, 09 Jul 2026 21:25:07 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1783657506; x=1784262306; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:dkim-signature:x-gm-gg :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to :content-type; bh=eyZBNWjXiJYpw4AXLf7sO6co+G6RVyUUgZr2HtNEmKY=; b=WOIs9DEZ+d5Zz3ThFMfLFzDnxYr+HoQtECOTR+uTjONtxYsffs3Y9nG5ZXQXGu0GZB WX1odCbmsNYON1YnnuuAnidpKKbiuWMG0pqtSmpcu4P3WN5mBAKqVFQe0QDscFRaIvdm qNRFE3/XSYIEDUCgT+7DEdvT1o0ZOU0Juh+lZHtLDDwTata+RfzFY1v2TFfwpBWz5hF5 ZCLOEE7iH8o4uCEy895uBu7Yq1fV5prxVBk86m9yrPEnyecn6NF4qpUu7tDkc4QRFNPe UTXpZ+WE3d26C3hQ3o1AgydX7ZJ6uTS7PBWn2Z7Snuc2hIyl3Cy5XSEM+55wHn14C1qW 6TCg== X-Gm-Message-State: AOJu0YwoH5yyLU3iDMmYuHKrMwluffni0lc+2l7hF/0aAMh2SyudnpHB uCBZeMJWu4sU7QnCybAdA4P8jYBd6kZPh9Ja+fyMfZGcC0c3GKSOKpmZgQsJG7jYVlH9NxS4Cm9 2zZ+whZXSgVDp7KYJpNS7EoFL7XERiKOxo5j8UmYJXwT7QoDSLonCJBzpWoK1WxBLaxI6vJoOCQ 7I5kC59HKBFCaU1BFhdW67KMss131CkmcpxsPfXi+z+vhPGeR2cO4zqNbjpACSElRbeTHPGqwBi uNstcDwRZo= X-Gm-Gg: AfdE7cn8RgNOvzsDeJ9kbIGWHAvrVVFks0ZXZDH5qmJhValzBwwwGqumxD/8U0mtlBu OPLGOgMyA68sas5b+JxDfBreqRJrxNvLHk2N0fr/iJknlQsPHjX4Ik2aYlfQf7+UH+c361hnZE8 lZGGkgQzBF77a7LPiuAHZLumYLHqJvlTxuwsuVsizFCJqfLh3PxvJIBMhVbgxblocS/ZoqiBVYU b+BEpgcWQ6eiwhyxT5GlBvV81GtCQYrBKTxRXd5B0u4CHqSud3noVNoGIoXdSiW2i4Vsw/mpHyD Ic3nw39LqOqQMObVmQ86ZoL6gfl9DX6h5aYkKywiAxETC7MP1sPoQ9xLiV2qhhGLZKgxBX6vG7F IQR/n0c9GijpyVONrghyZB9n9ARRdqVKGaLQ/4QQANDHkMnPeApmuYjeGtaoPHWhp8/O3+SyTEv h06U80MCfRAPT4UYjtEYxXuhV4MRI2gUpmL35acRtw0oi3PQ== X-Received: by 2002:a05:690e:4882:20b0:667:c1b3:d4bc with SMTP id 956f58d0204a3-667c1b3e300mr1658720d50.40.1783657506003; Thu, 09 Jul 2026 21:25:06 -0700 (PDT) Received: from smtp-us-east1-p01-i01-si01.dlp.protect.broadcom.com (address-144-49-247-11.dlp.protect.broadcom.com. [144.49.247.11]) by smtp-relay.gmail.com with ESMTPS id 956f58d0204a3-66787772ad1sm507345d50.5.2026.07.09.21.25.05 for (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Thu, 09 Jul 2026 21:25:05 -0700 (PDT) X-Relaying-Domain: broadcom.com X-CFilter-Loop: Reflected Received: by mail-pj1-f71.google.com with SMTP id 98e67ed59e1d1-37d4f23eb37so1043981a91.0 for ; Thu, 09 Jul 2026 21:25:05 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=broadcom.com; s=google; t=1783657505; x=1784262305; 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:content-type; bh=eyZBNWjXiJYpw4AXLf7sO6co+G6RVyUUgZr2HtNEmKY=; b=fBjFVnXeGFbyfr4/rO12P1unOdi2qjYcJ9NwppmyJoew0MzjuEwGU//C6Q3lFQwG7N +Wwe/TQ+3MhY367LCpzFmfutAkgFQ5ej0JcsLum2LnKbHjRBVDw7y56pHiIXe4jxDnk8 KqPhRhnkjLZz070mKvqYlA33tOFExHYCmkhmQ= X-Received: by 2002:a17:90b:2d48:b0:381:152b:d596 with SMTP id 98e67ed59e1d1-3893fd5fc2fmr10752686a91.11.1783657504845; Thu, 09 Jul 2026 21:25:04 -0700 (PDT) X-Received: by 2002:a17:90b:2d48:b0:381:152b:d596 with SMTP id 98e67ed59e1d1-3893fd5fc2fmr10752657a91.11.1783657504497; Thu, 09 Jul 2026 21:25:04 -0700 (PDT) Received: from lvnvda3289.lvn.broadcom.net ([192.19.161.250]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-313b4cbafa1sm276627eec.6.2026.07.09.21.25.03 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 09 Jul 2026 21:25:03 -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 v5 14/15] bnxt_en: Add support for inline transmit BDs Date: Thu, 9 Jul 2026 21:23:59 -0700 Message-ID: <20260710042400.3996847-15-michael.chan@broadcom.com> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260710042400.3996847-1-michael.chan@broadcom.com> References: <20260710042400.3996847-1-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 af11f0744d0a..44b0787fef89 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -848,7 +848,7 @@ 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; } @@ -860,13 +860,22 @@ 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 5b6f629d7bcf..0a60055b3e17 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