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In Azure, tests show that it may > take up to 15 seconds for VSP to respond on busy nodes. The VSP schedules > unbounded work to process VSC resquest, there is no upper limit on how long > it takes to send response back to VSC. > > In the NETVSC kernel mode driver, it waits forever for VSP response. While in > DPDK we can't wait forever, setting the timeout to 60 seconds. > > Cc: stable@dpdk.org > Signed-off-by: Long Li > Applied to dpdk-next-net/main, thanks.