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config: fix CPU and memory parameters on IBM POWER8

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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. The socket number on POWER8 little endian platform can be larger than 16.
   This patch set CONFIG_RTE_MAX_NUMA_NODES to 32 for POWER8.
3. Currently, the max number of memory channels are hardcoded to 4. However,
   on a POWER8 machine, the max number of memory channels are 8. This patch
   removes the constraint.

Signed-off-by: Chao Zhu <chaozhu@linux.vnet.ibm.com>
This commit is contained in:
Chao Zhu 2016-03-30 23:39:16 +08:00 committed by Thomas Monjalon
parent 4410efd3f2
commit a88ba49e51
2 changed files with 3 additions and 2 deletions
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2
config/defconfig_ppc_64-power8-linuxapp-gcc
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@ -36,6 +36,8 @@ CONFIG_RTE_ARCH="ppc_64"
CONFIG_RTE_ARCH_PPC_64=y
CONFIG_RTE_ARCH_64=y
CONFIG_RTE_MAX_LCORE=256
CONFIG_RTE_MAX_NUMA_NODES=32
CONFIG_RTE_CACHE_LINE_SIZE=128
CONFIG_RTE_TOOLCHAIN="gcc"

3
lib/librte_eal/common/eal_common_options.c
View File

@ -797,8 +797,7 @@ eal_parse_common_option(int opt, const char *optarg,
/* force number of channels */
case 'n':
conf->force_nchannel = atoi(optarg);
if (conf->force_nchannel == 0 ||
conf->force_nchannel > 4) {
if (conf->force_nchannel == 0) {
RTE_LOG(ERR, EAL, "invalid channel number\n");
return -1;
}