> On Feb 28, 2017, at 2:48 AM, Rahul Lakkireddy <rahul.lakkire...@chelsio.com>
> wrote:
>
> Hi All,
>
> We are seeing Pktgen-DPDK not building on ppc64le with latest dpdk git
> repo.
Yes, it looks like Pktgen needs to change to account for 256 cores. It is using
uint8_t and needs to change to uint16_t variables. I can only suggest you can
change the sizes in the places the compiler gives an error. I will try to get
Pktgen updated to fix this issue in the next release.
>
> Below build errors are seen:
> -------------------------
> [pktgen-dpdk]# make
> == lib
> == common
> CC l2p.o
> In file included from /root/pktgen-dpdk/lib/common/l2p.c:88:0:
> /root/pktgen-dpdk/lib/common/l2p.h: In function ‘pg_raw_dump_l2p’:
> /root/pktgen-dpdk/lib/common/l2p.h:103:2: error: comparison is always true
> due to limited range of data type [-Werror=type-limits]
> for (i = 0; i < RTE_MAX_LCORE; i++)
> ^
> /root/pktgen-dpdk/lib/common/l2p.h:109:2: error: comparison is always true
> due to limited range of data type [-Werror=type-limits]
> for (j = 0; j < RTE_MAX_LCORE; j++) {
> ^
> /root/pktgen-dpdk/lib/common/l2p.h: In function ‘pg_dump_l2p’:
> /root/pktgen-dpdk/lib/common/l2p.h:486:2: error: comparison is always true
> due to limited range of data type [-Werror=type-limits]
> for (lid = 0; lid < RTE_MAX_LCORE; lid++) {
> ^
> /root/pktgen-dpdk/lib/common/l2p.c: In function ‘pg_port_matrix_dump’:
> /root/pktgen-dpdk/lib/common/l2p.c:477:3: error: large integer implicitly
> truncated to unsigned type [-Werror=overflow]
> cnt.rxtx = get_map(l2p, pid, RTE_MAX_LCORE);
> ^
> /root/pktgen-dpdk/lib/common/l2p.c:488:3: error: large integer implicitly
> truncated to unsigned type [-Werror=overflow]
> cnt.rxtx = get_map(l2p, pid, RTE_MAX_LCORE);
> ^
> cc1: all warnings being treated as errors
> make[3]: *** [l2p.o] Error 1
> make[2]: *** [all] Error 2
> make[1]: *** [common] Error 2
> make: *** [lib] Error 2
> -------------------------
>
> By changing CONFIG_RTE_MAX_LCORE to 128 in
> defconfig_ppc_64-power8-linuxapp-gcc
> file, Pktgen-DPDK then builds fine.
>
> Thanks,
> Rahul
Regards,
Keith
