From: Paul Barker <paul@pbarker.dev>
To: Sergey Shtylyov <s.shtylyov@omp.ru>,
"David S . Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>
Cc: "Paul Barker" <paul.barker.ct@bp.renesas.com>,
"Geert Uytterhoeven" <geert+renesas@glider.be>,
"Niklas Söderlund" <niklas.soderlund+renesas@ragnatech.se>,
"Biju Das" <biju.das.jz@bp.renesas.com>,
"Claudiu Beznea" <claudiu.beznea.uj@bp.renesas.com>,
netdev@vger.kernel.org, linux-renesas-soc@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [net-next PATCH 06/11] net: ravb: Disable IP header TX checksum offloading
Date: Mon, 30 Sep 2024 17:08:40 +0100 [thread overview]
Message-ID: <20240930160845.8520-7-paul@pbarker.dev> (raw)
In-Reply-To: <20240930160845.8520-1-paul@pbarker.dev>
From: Paul Barker <paul.barker.ct@bp.renesas.com>
For IPv4 packets, the header checksum will always be calculated in software
in the TX path (Documentation/networking/checksum-offloads.rst says "No
offloading of the IP header checksum is performed; it is always done in
software.") so there is no advantage in asking the hardware to also
calculate this checksum.
Signed-off-by: Paul Barker <paul.barker.ct@bp.renesas.com>
---
drivers/net/ethernet/renesas/ravb.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/renesas/ravb.h b/drivers/net/ethernet/renesas/ravb.h
index 98496aa39f3d..a5b4f4fe77b1 100644
--- a/drivers/net/ethernet/renesas/ravb.h
+++ b/drivers/net/ethernet/renesas/ravb.h
@@ -998,7 +998,7 @@ enum CSR1_BIT {
CSR1_TDHD = 0x08000000,
};
-#define CSR1_CSUM_ENABLE (CSR1_TIP4 | CSR1_TTCP4 | CSR1_TUDP4)
+#define CSR1_CSUM_ENABLE (CSR1_TTCP4 | CSR1_TUDP4)
enum CSR2_BIT {
CSR2_RIP4 = 0x00000001,
--
2.43.0
next prev parent reply other threads:[~2024-09-30 16:09 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-09-30 16:08 [net-next PATCH 00/11] Extend GbEth checksum offload support to VLAN/IPv6 packets Paul Barker
2024-09-30 16:08 ` [net-next PATCH 01/11] net: ravb: Factor out checksum offload enable bits Paul Barker
2024-09-30 17:02 ` Sergey Shtylyov
2024-09-30 16:08 ` [net-next PATCH 02/11] net: ravb: Disable IP header RX checksum offloading Paul Barker
2024-09-30 17:16 ` Sergey Shtylyov
2024-09-30 16:08 ` [net-next PATCH 03/11] net: ravb: Drop IP protocol check from RX csum verification Paul Barker
2024-09-30 17:29 ` Sergey Shtylyov
2024-09-30 16:08 ` [net-next PATCH 04/11] net: ravb: Combine if conditions in RX csum validation Paul Barker
2024-09-30 17:40 ` Sergey Shtylyov
2024-09-30 16:08 ` [net-next PATCH 05/11] net: ravb: Simplify types " Paul Barker
2024-09-30 19:11 ` Sergey Shtylyov
2024-09-30 19:30 ` Sergey Shtylyov
2024-10-03 9:23 ` Paul Barker
2024-10-03 13:20 ` Sergey Shtylyov
2024-09-30 16:08 ` Paul Barker [this message]
2024-09-30 19:23 ` [net-next PATCH 06/11] net: ravb: Disable IP header TX checksum offloading Sergey Shtylyov
2024-09-30 16:08 ` [net-next PATCH 07/11] net: ravb: Simplify UDP TX checksum offload Paul Barker
2024-09-30 19:39 ` Sergey Shtylyov
2024-09-30 16:08 ` [net-next PATCH 08/11] net: ravb: Support ICMP TX checksum offload for GbEth Paul Barker
2024-09-30 19:48 ` Sergey Shtylyov
2024-09-30 16:08 ` [net-next PATCH 09/11] net: ravb: Enable IPv6 RX checksum offloading " Paul Barker
2024-09-30 19:55 ` Sergey Shtylyov
2024-09-30 16:08 ` [net-next PATCH 10/11] net: ravb: Enable IPv6 TX checksum offload " Paul Barker
2024-09-30 20:08 ` Sergey Shtylyov
2024-09-30 16:08 ` [net-next PATCH 11/11] net: ravb: Add VLAN checksum support Paul Barker
2024-09-30 20:36 ` Sergey Shtylyov
2024-09-30 22:32 ` Sergey Shtylyov
2024-10-01 10:44 ` Simon Horman
2024-10-02 15:27 ` Sergey Shtylyov
2024-10-03 10:26 ` Paul Barker
2024-10-01 16:46 ` kernel test robot
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