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
