This patch fixes the max logic number and memory channel number settings on IBM POWER8 platform. 1. The max number of logic cores of a POWER8 processor is 96. Normally, there are two sockets on a server. So the max number of logic cores are 192. So this parch set CONFIG_RTE_MAX_LCORE to 256. 2. Currently, the max number of memory channels are hardcoded to 4. However, on a POWER8 machine, the max number of memory channels are 8. To fix this, CONFIG_RTE_MAX_NCHANNELS is added to do the configuration.
Signed-off-by: Chao Zhu <chaozhu at linux.vnet.ibm.com> --- config/common_base | 3 ++- lib/librte_eal/common/eal_common_options.c | 2 +- 2 files changed, 3 insertions(+), 2 deletions(-) diff --git a/config/common_base b/config/common_base index dbd405b..1beea32 100644 --- a/config/common_base +++ b/config/common_base @@ -83,10 +83,11 @@ CONFIG_RTE_CACHE_LINE_SIZE=64 # Compile Environment Abstraction Layer # CONFIG_RTE_LIBRTE_EAL=y -CONFIG_RTE_MAX_LCORE=128 +CONFIG_RTE_MAX_LCORE=256 CONFIG_RTE_MAX_NUMA_NODES=8 CONFIG_RTE_MAX_MEMSEG=256 CONFIG_RTE_MAX_MEMZONE=2560 +CONFIG_RTE_MAX_NCHANNELS=8 CONFIG_RTE_MAX_TAILQ=32 CONFIG_RTE_LOG_LEVEL=8 CONFIG_RTE_LOG_HISTORY=256 diff --git a/lib/librte_eal/common/eal_common_options.c b/lib/librte_eal/common/eal_common_options.c index 29942ea..6c268c1 100644 --- a/lib/librte_eal/common/eal_common_options.c +++ b/lib/librte_eal/common/eal_common_options.c @@ -798,7 +798,7 @@ eal_parse_common_option(int opt, const char *optarg, case 'n': conf->force_nchannel = atoi(optarg); if (conf->force_nchannel == 0 || - conf->force_nchannel > 4) { + conf->force_nchannel > RTE_MAX_NCHANNELS) { RTE_LOG(ERR, EAL, "invalid channel number\n"); return -1; } -- 1.7.1