This patch seems to solve the performance issues i have. Currently my nic's rx performance is unstable in large-capacity scenarios. I applied this patch to 5.19 rc4 and tested 8 times rx performance in these scenes. Here are test results, "before" row is the result of 5.19 rc4. "after" row means 5.19 rc4 with this patch, the unit is Mbits/s
1 2 3 4 5 6 7 8
before 55430 76701 84194 77560 88292 90106 87770 77273
after 92770 92767 92792 92764 92742 92696 92781 92756
Obviously, after using this patch, the performance is stable.