[net-next PATCH 06/11] net: ravb: Disable IP header TX checksum offloading

Paul Barker
2024-09-30T16:09:42Z

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