From nobody Wed Jan 21 19:50:52 2026 X-Original-To: dev-commits-src-branches@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4dxFDY0fKfz6PdkK for ; Wed, 21 Jan 2026 19:50:52 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R13" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4dxFDX2VCfz3Hbb for ; Wed, 21 Jan 2026 19:50:52 +0000 (UTC) (envelope-from git@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1769025052; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=zsCLX8dUrsPXQrB+WgEugxyNw+wINd+tiypQNjBz4oo=; b=BvRdKfhCtta7O3KIHmNRh3aAOh6OEiONKMpZifFDG686CaYc81+CmN5WFPRj58McLjktSo XFTy5xBRqIyPYxdMHOtP3MJfRzVydSeqkMcKqodNcNYfmPMcKQtGd/2OP3S3WWBE/Zaabz U/YYsk6KmnT6QHdzczO5xQkOw05n86H2f5wQdx5B2yEWpA/nwauf42jJ886T+PFU8sE+mR Qrs+W5hrcLLqi2yxx2Qnzx4J2Uw+u+9K758CzcgSbRdQppL9rbhWl0MyXaeoZ8+R5f1VJS Nqd8J9xhwP8ymy0Zw7KEDHbimvBUF5E+H79X3Ezr5ceqRKroOarHiu1VtgJQ4Q== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1769025052; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=zsCLX8dUrsPXQrB+WgEugxyNw+wINd+tiypQNjBz4oo=; b=h0epYA6A5OVM2v0EBv5EN9H1A2szQEYeyyKtVVFbIEFTvke0aVxQhU7riHc5VPdpX1lERM rgPs81LDHgSLb99McAelPXq+fGwQ1HBWQYRYXyEHltroC/BYS9t7xD4uBfhhp9hsNaDuk3 3JCMMECxwC9egscdhqcYKjQLPbQakBcIZ+WuheX2duEZBf7BuRGQav+PQ+VYK5DFQ/XvaV hJoSWtM2E3B62gf83KVQrhLU4xxFX2q51hAwk+4KO3Shmk6XfKzZSuokfAQjIUZKH774FG VU8AR94SE/GEAJhGw8PbJv2Sv9XjWjN8x/pigTXvR9Uv20S9NgvXq40NYxEbUQ== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1769025052; a=rsa-sha256; cv=none; b=i1dSt4qnP6bx0nnmaOg4zQnstd5Wx7TpUKXJFJ3O0GvLC+vGJ2PoaQrPYn5gztP8SimyIl nmRBmGg+W0L9tD8rnDOIdstGx2z/i4hOim8HZxgSbohoKfn86CYd/BHO5ejqiEdvn6wFA3 K/FhR8UbBTmbsHSESg2ag/zdUozAlr+HbaTinL2FJvlGrsFivU4XlCawjAkFpbMNaZT61Y 8wEoiejTiQl9IA6p3P8DixjniJJOHoPLhlDK80qCZJyAL5tGHa++gkUXhx2kSx1/Qf/k6K 2qDRBLzpUjORnlFVEbJaGMIAZsiJ2hR7Pr1zAmd5fBU65JtR0Gn9EtNbabcD7Q== ARC-Authentication-Results: i=1; mx1.freebsd.org; none Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) by mxrelay.nyi.freebsd.org (Postfix) with ESMTP id 4dxFDX0P4Pz11WD for ; Wed, 21 Jan 2026 19:50:52 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from git (uid 1279) (envelope-from git@FreeBSD.org) id bb91 by gitrepo.freebsd.org (DragonFly Mail Agent v0.13+ on gitrepo.freebsd.org); Wed, 21 Jan 2026 19:50:52 +0000 To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org From: Michael Tuexen Subject: git: decd5ea5d248 - stable/15 - dwc: improve IPv4 transmit checksum offloading List-Id: Commits to the stable branches of the FreeBSD src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-branches List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: dev-commits-src-branches@freebsd.org Sender: owner-dev-commits-src-branches@FreeBSD.org MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: tuexen X-Git-Repository: src X-Git-Refname: refs/heads/stable/15 X-Git-Reftype: branch X-Git-Commit: decd5ea5d248db46b4cdf46baccc738b28f0713e Auto-Submitted: auto-generated Date: Wed, 21 Jan 2026 19:50:52 +0000 Message-Id: <69712e1c.bb91.59a77d02@gitrepo.freebsd.org> The branch stable/15 has been updated by tuexen: URL: https://cgit.FreeBSD.org/src/commit/?id=decd5ea5d248db46b4cdf46baccc738b28f0713e commit decd5ea5d248db46b4cdf46baccc738b28f0713e Author: Michael Tuexen AuthorDate: 2026-01-16 11:02:53 +0000 Commit: Michael Tuexen CommitDate: 2026-01-21 19:50:29 +0000 dwc: improve IPv4 transmit checksum offloading This patch provides two improvements for TCP/IPv4 and UDP/IPv4 transmit checksum offloading: (1) Use *CIC_SEG instead of *CIC_FULL, since FreeBSD always provides a pseudo header checksum. (2) Don't make transmit IPv4 header checksum offloading a prerequisite for TCP/IPv4 or UDP/IPv4 transmit checksum offloading. This is the root cause of PR 291696, since right now the epair interface does not support transmit IPv4 header checksum offloading, but TCP/IPv4 and UDP/IPv4 transmit checksum offloading. PR: 291696 Reviewed by: Timo Voelker Tested by: Marek Benc Differential Revision: https://reviews.freebsd.org/D54395 (cherry picked from commit f8ddf74175c8013268e65b18750e247306fa088a) --- sys/dev/dwc/dwc1000_dma.c | 21 +++++++-------------- 1 file changed, 7 insertions(+), 14 deletions(-) diff --git a/sys/dev/dwc/dwc1000_dma.c b/sys/dev/dwc/dwc1000_dma.c index 44b9f0d114bf..8cc145216c2d 100644 --- a/sys/dev/dwc/dwc1000_dma.c +++ b/sys/dev/dwc/dwc1000_dma.c @@ -248,7 +248,7 @@ dma1000_setup_txbuf(struct dwc_softc *sc, int idx, struct mbuf **mp) struct bus_dma_segment segs[TX_MAP_MAX_SEGS]; int error, nsegs; struct mbuf * m; - uint32_t flags = 0; + uint32_t flags; int i; int last; @@ -276,19 +276,12 @@ dma1000_setup_txbuf(struct dwc_softc *sc, int idx, struct mbuf **mp) m = *mp; - if ((m->m_pkthdr.csum_flags & CSUM_IP) != 0) { - if ((m->m_pkthdr.csum_flags & (CSUM_TCP|CSUM_UDP)) != 0) { - if (!sc->dma_ext_desc) - flags = NTDESC1_CIC_FULL; - else - flags = ETDESC0_CIC_FULL; - } else { - if (!sc->dma_ext_desc) - flags = NTDESC1_CIC_HDR; - else - flags = ETDESC0_CIC_HDR; - } - } + if ((m->m_pkthdr.csum_flags & CSUM_DELAY_DATA) != 0) + flags = sc->dma_ext_desc ? ETDESC0_CIC_SEG : NTDESC1_CIC_SEG; + else if ((m->m_pkthdr.csum_flags & CSUM_IP) != 0) + flags = sc->dma_ext_desc ? ETDESC0_CIC_HDR : NTDESC1_CIC_HDR; + else + flags = sc->dma_ext_desc ? ETDESC0_CIC_NONE : NTDESC1_CIC_NONE; bus_dmamap_sync(sc->txbuf_tag, sc->txbuf_map[idx].map, BUS_DMASYNC_PREWRITE);