From mboxrd@z Thu Jan 1 00:00:00 1970 From: Anatoly Burakov Subject: [PATCH 10/41] eal: add "single file segments" command-line option Date: Sat, 3 Mar 2018 13:45:58 +0000 Message-ID: References: Cc: keith.wiles@intel.com, jianfeng.tan@intel.com, andras.kovacs@ericsson.com, laszlo.vadkeri@ericsson.com, benjamin.walker@intel.com, bruce.richardson@intel.com, thomas@monjalon.net, konstantin.ananyev@intel.com, kuralamudhan.ramakrishnan@intel.com, louise.m.daly@intel.com, nelio.laranjeiro@6wind.com, yskoh@mellanox.com, pepperjo@japf.ch, jerin.jacob@caviumnetworks.com, hemant.agrawal@nxp.com, olivier.matz@6wind.com To: dev@dpdk.org Return-path: Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) by dpdk.org (Postfix) with ESMTP id CF1185F16 for ; Sat, 3 Mar 2018 14:46:40 +0100 (CET) In-Reply-To: In-Reply-To: References: List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" For now, this option does nothing, but it will be useful in dynamic memory allocation down the line. Currently, DPDK stores all pages as separate files in hugetlbfs. This option will allow storing all pages in one file (one file per socket, per page size). Signed-off-by: Anatoly Burakov --- lib/librte_eal/common/eal_common_options.c | 4 ++++ lib/librte_eal/common/eal_internal_cfg.h | 4 ++++ lib/librte_eal/common/eal_options.h | 2 ++ lib/librte_eal/linuxapp/eal/eal.c | 1 + 4 files changed, 11 insertions(+) diff --git a/lib/librte_eal/common/eal_common_options.c b/lib/librte_eal/common/eal_common_options.c index 0be80cb..dbc3fb5 100644 --- a/lib/librte_eal/common/eal_common_options.c +++ b/lib/librte_eal/common/eal_common_options.c @@ -73,6 +73,7 @@ eal_long_options[] = { {OPT_VDEV, 1, NULL, OPT_VDEV_NUM }, {OPT_VFIO_INTR, 1, NULL, OPT_VFIO_INTR_NUM }, {OPT_VMWARE_TSC_MAP, 0, NULL, OPT_VMWARE_TSC_MAP_NUM }, + {OPT_SINGLE_FILE_SEGMENTS, 0, NULL, OPT_SINGLE_FILE_SEGMENTS_NUM}, {0, 0, NULL, 0 } }; @@ -1161,6 +1162,9 @@ eal_parse_common_option(int opt, const char *optarg, core_parsed = LCORE_OPT_MAP; break; + case OPT_SINGLE_FILE_SEGMENTS_NUM: + conf->single_file_segments = 1; + break; /* don't know what to do, leave this to caller */ default: diff --git a/lib/librte_eal/common/eal_internal_cfg.h b/lib/librte_eal/common/eal_internal_cfg.h index 4e2c2e6..3e31ac6 100644 --- a/lib/librte_eal/common/eal_internal_cfg.h +++ b/lib/librte_eal/common/eal_internal_cfg.h @@ -47,6 +47,10 @@ struct internal_config { volatile unsigned force_sockets; volatile uint64_t socket_mem[RTE_MAX_NUMA_NODES]; /**< amount of memory per socket */ uintptr_t base_virtaddr; /**< base address to try and reserve memory from */ + volatile unsigned single_file_segments; + /**< true if storing all pages within single files (per-page-size, + * per-node). + */ volatile int syslog_facility; /**< facility passed to openlog() */ /** default interrupt mode for VFIO */ volatile enum rte_intr_mode vfio_intr_mode; diff --git a/lib/librte_eal/common/eal_options.h b/lib/librte_eal/common/eal_options.h index e86c711..a4b80d5 100644 --- a/lib/librte_eal/common/eal_options.h +++ b/lib/librte_eal/common/eal_options.h @@ -55,6 +55,8 @@ enum { OPT_VFIO_INTR_NUM, #define OPT_VMWARE_TSC_MAP "vmware-tsc-map" OPT_VMWARE_TSC_MAP_NUM, +#define OPT_SINGLE_FILE_SEGMENTS "single-file-segments" + OPT_SINGLE_FILE_SEGMENTS_NUM, OPT_LONG_MAX_NUM }; diff --git a/lib/librte_eal/linuxapp/eal/eal.c b/lib/librte_eal/linuxapp/eal/eal.c index 2ecd07b..c84e6bf 100644 --- a/lib/librte_eal/linuxapp/eal/eal.c +++ b/lib/librte_eal/linuxapp/eal/eal.c @@ -348,6 +348,7 @@ eal_usage(const char *prgname) " --"OPT_BASE_VIRTADDR" Base virtual address\n" " --"OPT_CREATE_UIO_DEV" Create /dev/uioX (usually done by hotplug)\n" " --"OPT_VFIO_INTR" Interrupt mode for VFIO (legacy|msi|msix)\n" + " --"OPT_SINGLE_FILE_SEGMENTS" Put all hugepage memory in single files\n" "\n"); /* Allow the application to print its usage message too if hook is set */ if ( rte_application_usage_hook ) { -- 2.7.4