From: <darinzon@amazon.com>
To: David Miller <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>, <netdev@vger.kernel.org>
Cc: David Arinzon <darinzon@amazon.com>,
"Woodhouse, David" <dwmw@amazon.com>,
"Machulsky, Zorik" <zorik@amazon.com>,
"Matushevsky, Alexander" <matua@amazon.com>,
Saeed Bshara <saeedb@amazon.com>, "Wilson, Matt" <msw@amazon.com>,
"Liguori, Anthony" <aliguori@amazon.com>,
"Bshara, Nafea" <nafea@amazon.com>,
"Belgazal, Netanel" <netanel@amazon.com>,
"Saidi, Ali" <alisaidi@amazon.com>,
"Herrenschmidt, Benjamin" <benh@amazon.com>,
"Kiyanovski, Arthur" <akiyano@amazon.com>,
"Dagan, Noam" <ndagan@amazon.com>,
"Agroskin, Shay" <shayagr@amazon.com>,
"Itzko, Shahar" <itzko@amazon.com>,
"Abboud, Osama" <osamaabb@amazon.com>,
"Ostrovsky, Evgeny" <evostrov@amazon.com>,
"Tabachnik, Ofir" <ofirt@amazon.com>,
"Koler, Nati" <nkolder@amazon.com>
Subject: [PATCH v1 net-next 02/11] net: ena: Add more documentation for RX copybreak
Date: Mon, 29 Jan 2024 08:55:22 +0000 [thread overview]
Message-ID: <20240129085531.15608-3-darinzon@amazon.com> (raw)
In-Reply-To: <20240129085531.15608-1-darinzon@amazon.com>
From: David Arinzon <darinzon@amazon.com>
This patch contains more details about the functionality
of RX copybreak.
Signed-off-by: Shay Agroskin <shayagr@amazon.com>
Signed-off-by: David Arinzon <darinzon@amazon.com>
---
.../networking/device_drivers/ethernet/amazon/ena.rst | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/Documentation/networking/device_drivers/ethernet/amazon/ena.rst b/Documentation/networking/device_drivers/ethernet/amazon/ena.rst
index b842bcb..a4c7d0c 100644
--- a/Documentation/networking/device_drivers/ethernet/amazon/ena.rst
+++ b/Documentation/networking/device_drivers/ethernet/amazon/ena.rst
@@ -211,10 +211,16 @@ Documentation/networking/net_dim.rst
RX copybreak
============
+
The rx_copybreak is initialized by default to ENA_DEFAULT_RX_COPYBREAK
and can be configured by the ETHTOOL_STUNABLE command of the
SIOCETHTOOL ioctl.
+This option controls the maximum packet length for which the RX
+descriptor it was received on would be recycled. When a packet smaller
+than RX copybreak bytes is received, it is copied into a new memory
+buffer and the RX descriptor is returned to HW.
+
Statistics
==========
--
2.40.1
next prev parent reply other threads:[~2024-01-29 8:55 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-01-29 8:55 [PATCH v1 net-next 00/11] ENA driver changes darinzon
2024-01-29 8:55 ` [PATCH v1 net-next 01/11] net: ena: Remove an unused field darinzon
2024-01-29 8:55 ` darinzon [this message]
2024-01-29 8:55 ` [PATCH v1 net-next 03/11] net: ena: Minor cosmetic changes darinzon
2024-01-29 8:55 ` [PATCH v1 net-next 04/11] net: ena: Enable DIM by default darinzon
2024-01-29 8:55 ` [PATCH v1 net-next 05/11] net: ena: Remove CQ tail pointer update darinzon
2024-01-30 1:16 ` Nelson, Shannon
2024-01-30 9:39 ` Arinzon, David
2024-01-29 8:55 ` [PATCH v1 net-next 06/11] net: ena: Change error print during ena_device_init() darinzon
2024-01-29 8:55 ` [PATCH v1 net-next 07/11] net: ena: Add more information on TX timeouts darinzon
2024-01-29 8:55 ` [PATCH v1 net-next 08/11] net: ena: Relocate skb_tx_timestamp() to improve time stamping accuracy darinzon
2024-01-29 8:55 ` [PATCH v1 net-next 09/11] net: ena: Change default print level for netif_ prints darinzon
2024-01-29 8:55 ` [PATCH v1 net-next 10/11] net: ena: handle ena_calc_io_queue_size() possible errors darinzon
2024-01-30 1:16 ` Nelson, Shannon
2024-01-30 9:39 ` Arinzon, David
2024-01-29 8:55 ` [PATCH v1 net-next 11/11] net: ena: Reduce lines with longer column width boundary darinzon
2024-01-30 1:16 ` Nelson, Shannon
2024-01-30 9:39 ` Arinzon, David
2024-01-30 1:20 ` [PATCH v1 net-next 00/11] ENA driver changes Nelson, Shannon
2024-01-30 9:39 ` Arinzon, David
2024-01-30 21:07 ` Nelson, Shannon
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=20240129085531.15608-3-darinzon@amazon.com \
--to=darinzon@amazon.com \
--cc=akiyano@amazon.com \
--cc=aliguori@amazon.com \
--cc=alisaidi@amazon.com \
--cc=benh@amazon.com \
--cc=davem@davemloft.net \
--cc=dwmw@amazon.com \
--cc=evostrov@amazon.com \
--cc=itzko@amazon.com \
--cc=kuba@kernel.org \
--cc=matua@amazon.com \
--cc=msw@amazon.com \
--cc=nafea@amazon.com \
--cc=ndagan@amazon.com \
--cc=netanel@amazon.com \
--cc=netdev@vger.kernel.org \
--cc=nkolder@amazon.com \
--cc=ofirt@amazon.com \
--cc=osamaabb@amazon.com \
--cc=saeedb@amazon.com \
--cc=shayagr@amazon.com \
--cc=zorik@amazon.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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.