dpif: Maintain upcall_pid, mtu and hash. #3001

Job	Run time
build oss-fuzz fuzzers	2m 42s
osx clang --disable-ssl	2m 44s
libreswan (ubuntu-24.04)	3m 15s
dpdk gcc (ubuntu-24.04)	2m 5s
linux deb no dpdk	5m 30s
linux rpm fedora	3m 36s
clang-analyze-cache	10m 44s
linux clang --disable-ssl	2m 47s
linux clang c99	3m 1s
linux gcc c99	2m 59s
linux clang address,undefined test	17m 3s
linux gcc test	8m 52s
linux gcc --disable-ssl	2m 50s
linux clang check check-dpdk dpdk	19m 47s
linux gcc test --enable-shared	12m 7s
linux clang test -ljemalloc	9m 23s
linux clang dpdk --enable-shared	3m 57s
linux gcc --enable-afxdp	2m 54s
linux clang test --enable-shared	11m 53s
linux gcc test -ljemalloc	9m 9s
linux gcc check check-dpdk dpdk	19m 39s
linux gcc dpdk-shared --enable-shared	3m 46s
linux gcc dpdk-shared	3m 13s
linux gcc check-offloads -100	9m 56s
linux gcc dpdk --enable-shared	3m 44s
linux gcc check-kernel 100-	20m 0s
linux gcc m32 --disable-ssl	2m 59s
linux clang --enable-afxdp	2m 56s
linux clang dpdk-shared --enable-shared	4m 3s
linux clang address,undefined check-kernel -100	13m 57s
linux clang dpdk-shared	3m 29s
linux clang address,undefined dpdk check-system-userspace	16m 47s
linux gcc check-ovsdb-cluster	6m 56s
linux gcc check-kernel -100	11m 14s
linux clang address,undefined check-kernel 100-	23m 49s
linux gcc dpdk check-afxdp	12m 58s
linux gcc check-offloads 100-	13m 15s
linux gcc dpdk check-system-userspace	13m 29s
linux gcc dpdk check-system-tso	13m 11s
clang-analyze	10m 50s
	5h 47m 29s

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