eal: suggest using --lcores option
eal: suggest using --lcores option

If the user requests to use an lcore above 128 using -l,
the eal will exit with "EAL: invalid core list syntax" and
very little else useful information.

This patch adds some extra information suggesting to use --lcores
so that physical cores above RTE_MAX_LCORE (default 128) can be
used. This is achieved by using the --lcores option by mapping
the logical cores in the application to physical cores.

For example, if "-l 12-16,130,132" is used, we see the following
additional output on the command line:

EAL: lcore 132 >= RTE_MAX_LCORE (128)
EAL: lcore 133 >= RTE_MAX_LCORE (128)
EAL: To use high physical core ids, please use --lcores to map them
to lcore ids below RTE_MAX_LCORE,
EAL: e.g. --lcores 0@12,1@13,2@14,3@15,4@16,5@132,6@133

The same is added to -c option parsing.

For example, if "-c 0x300000000000000000000000000000000" is
used, we see the following additional output on the command line:

EAL: lcore 128 >= RTE_MAX_LCORE (128)
EAL: lcore 129 >= RTE_MAX_LCORE (128)
EAL: To use high physical core ids, please use --lcores to map them
to lcore ids below RTE_MAX_LCORE,
EAL: e.g. --lcores 0@128,1@129

Signed-off-by: David Hunt <763be7c8e0ad91e03160e7aed76d5cd41534e2f9@intel.com>
Acked-by: Bruce Richardson <66b9e8e8fbd5e9f41f91b0af050876182ce9d0e4@intel.com>

john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk