Linus Walleij ebd8ec2b30 net: ethernet: cortina: Carry over frag counter ... The gmac_rx() NAPI poll function assembles packets in an SKB from a ring buffer. If the ring buffer gets completely emptied during a poll cycle, we exit gmac_rx(), but the packet is not yet completely assembled in the SKB, yet the fragment counter frag_nr is reset to zero on the next invocation. Solve this by making the RX fragment counter a part of the port struct, and carry it over between invocations. Reset the fragment counter only right after calling napi_gro_frags(), on error (after calling napi_free_frags()) or if stopping the port. Reset it in some place where not strictly necessary just to emphasize what is going on. This was found by Sashiko during normal patch review. Fixes: 4d5ae32f5e ("net: ethernet: Add a driver for Gemini gigabit ethernet") Link: https://sashiko.dev/#/patchset/20260505-gemini-ethernet-fix-v2-1-997c31d06079%40kernel.org Signed-off-by: Linus Walleij <linusw@kernel.org> Link: https://patch.msgid.link/20260509-gemini-ethernet-fixes-v1-3-6c5d20ddc35b@kernel.org Signed-off-by: Paolo Abeni <pabeni@redhat.com>		2026-05-12 15:20:16 +02:00
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gemini.c	net: ethernet: cortina: Carry over frag counter	2026-05-12 15:20:16 +02:00
gemini.h	net: ethernet: cortina: Fix MTU max setting	2023-11-13 20:58:20 -08:00
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