From: Florian Fainelli <florian.fainelli@broadcom.com>
To: Nicolai Buchwitz <nb@tipi-net.de>,
Andrew Lunn <andrew+netdev@lunn.ch>,
"David S . Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
Doug Berger <opendmb@gmail.com>
Cc: "Broadcom internal kernel review list"
<bcm-kernel-feedback-list@broadcom.com>,
"Vikas Gupta" <vikas.gupta@broadcom.com>,
"Bhargava Marreddy" <bhargava.marreddy@broadcom.com>,
"Rajashekar Hudumula" <rajashekar.hudumula@broadcom.com>,
"Eric Biggers" <ebiggers@kernel.org>,
"Heiner Kallweit" <hkallweit1@gmail.com>,
"Markus Blöchl" <mbloch@rooftopnetworks.de>,
"Arnd Bergmann" <arnd@arndb.de>,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH net-next 3/6] net: bcmgenet: add basic XDP support (PASS/DROP)
Date: Fri, 13 Mar 2026 15:48:31 -0700 [thread overview]
Message-ID: <e3d33a3e-9552-4f2d-99b6-76a1e203603d@broadcom.com> (raw)
In-Reply-To: <20260313092101.1344954-4-nb@tipi-net.de>
On 3/13/26 02:20, Nicolai Buchwitz wrote:
> Add XDP program attachment via ndo_bpf and execute XDP programs in the
> RX path. Supported actions:
>
> - XDP_PASS: build SKB from the (possibly modified) xdp_buff and pass
> to the network stack, handling xdp_adjust_head/tail correctly
> - XDP_DROP: return the page to page_pool, no SKB allocated
> - XDP_ABORTED: same as DROP with trace_xdp_exception
>
> XDP_TX and XDP_REDIRECT are not yet supported and will return
> XDP_ABORTED.
>
> The XDP hook runs after the HW error checks but before SKB construction,
> so dropped packets avoid all SKB allocation overhead.
>
> Advertise NETDEV_XDP_ACT_BASIC in xdp_features.
>
> Signed-off-by: Nicolai Buchwitz <nb@tipi-net.de>
> ---
[snip]
> @@ -2345,12 +2397,6 @@ static unsigned int bcmgenet_desc_rx(struct bcmgenet_rx_ring *ring,
> hard_start = page_address(rx_page) + rx_off;
> status = (struct status_64 *)hard_start;
> dma_length_status = status->length_status;
> - if (dev->features & NETIF_F_RXCSUM) {
> - rx_csum = (__force __be16)(status->rx_csum & 0xffff);
> - if (rx_csum) {
> - /* defer csum setup to after skb is built */
> - }
> - }
Did you intend for that hunk to be deleted?
--
Florian
next prev parent reply other threads:[~2026-03-13 22:48 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-13 9:20 [PATCH net-next 0/6] net: bcmgenet: add XDP support Nicolai Buchwitz
2026-03-13 9:20 ` [PATCH net-next 1/6] net: bcmgenet: convert RX path to page_pool Nicolai Buchwitz
2026-03-13 9:20 ` [PATCH net-next 2/6] net: bcmgenet: register xdp_rxq_info for each RX ring Nicolai Buchwitz
2026-03-13 9:20 ` [PATCH net-next 3/6] net: bcmgenet: add basic XDP support (PASS/DROP) Nicolai Buchwitz
2026-03-13 22:48 ` Florian Fainelli [this message]
2026-03-14 19:48 ` Nicolai Buchwitz
2026-03-13 9:20 ` [PATCH net-next 4/6] net: bcmgenet: add XDP_TX support Nicolai Buchwitz
2026-03-13 11:37 ` Subbaraya Sundeep
2026-03-13 12:45 ` Nicolai Buchwitz
2026-03-13 9:21 ` [PATCH net-next 5/6] net: bcmgenet: add XDP_REDIRECT and ndo_xdp_xmit support Nicolai Buchwitz
2026-03-13 9:21 ` [PATCH net-next 6/6] net: bcmgenet: add XDP statistics counters Nicolai Buchwitz
2026-03-13 23:01 ` [PATCH net-next 0/6] net: bcmgenet: add XDP support Florian Fainelli
2026-03-14 0:13 ` Florian Fainelli
2026-03-14 19:51 ` Nicolai Buchwitz
2026-03-14 15:52 ` Jakub Kicinski
2026-03-14 19:52 ` Nicolai Buchwitz
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=e3d33a3e-9552-4f2d-99b6-76a1e203603d@broadcom.com \
--to=florian.fainelli@broadcom.com \
--cc=andrew+netdev@lunn.ch \
--cc=arnd@arndb.de \
--cc=bcm-kernel-feedback-list@broadcom.com \
--cc=bhargava.marreddy@broadcom.com \
--cc=davem@davemloft.net \
--cc=ebiggers@kernel.org \
--cc=edumazet@google.com \
--cc=hkallweit1@gmail.com \
--cc=kuba@kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mbloch@rooftopnetworks.de \
--cc=nb@tipi-net.de \
--cc=netdev@vger.kernel.org \
--cc=opendmb@gmail.com \
--cc=pabeni@redhat.com \
--cc=rajashekar.hudumula@broadcom.com \
--cc=vikas.gupta@broadcom.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox