From mboxrd@z Thu Jan 1 00:00:00 1970 From: Anatoly Burakov Subject: [PATCH v3 0/8] Support running DPDK without hugetlbfs mountpoint Date: Fri, 13 Jul 2018 13:47:56 +0100 Message-ID: References: Cc: ray.kinsella@intel.com, kuralamudhan.ramakrishnan@intel.com, louise.m.daly@intel.com, bruce.richardson@intel.com, ferruh.yigit@intel.com, konstantin.ananyev@intel.com, thomas@monjalon.net To: dev@dpdk.org Return-path: Received: from mga18.intel.com (mga18.intel.com [134.134.136.126]) by dpdk.org (Postfix) with ESMTP id 768CD2C16 for ; Fri, 13 Jul 2018 14:48:07 +0200 (CEST) In-Reply-To: List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" This patchset adds a new command-line option "--in-memory", which takes old debug options "--huge-unlink" and "--no-shconf", and enhances them with additional functionality. This will allow DPDK to reserve hugepages anonymously instead of using hugetlbfs mountpoints. Coupled with the fact that this option also effectively enables both "--no-shconf" and "--huge-unlink" modes, DPDK will be able to run entirely in memory and not create any shared files while running - neither hugepages nor any runtime data. This will, of course, disable secondary processes, but for use-cases this is targeted at (containers etc.), this is not a problem. Older revisions had kernel support at 4.14+ and also required a fairly new glibc, but now due to not using memfd and using mmap() instead, minimum supported kernel version has dropped to 3.8. v2->v3 changes: - Fix compile issue in patch 9 (now 8) - Drop deprecation notice (will be sent separately) v1->v2 changes: - Rebase on latest master - Fix patch 5 to include check from patch 6 as commit message states RFC->v1 changes: - Dropped memfd, using anonymous mmap() instead - Do not deprecate old command-line parameters, instead use them as they are, and add a deprecation notice to remove them in the next release. Anatoly Burakov (8): fbarray: support no-shconf mode ipc: add support for no-shconf mode eal: add support for no-shconf for hugepage info eal: add support for no-shconf in hugepage data file eal: do not create runtime dir in no-shconf mode mem: add support for hugepage-unlink mode eal: add --in-memory option mem: support in-memory mode lib/librte_eal/bsdapp/eal/eal.c | 3 +- lib/librte_eal/bsdapp/eal/eal_hugepage_info.c | 4 + lib/librte_eal/common/eal_common_fbarray.c | 71 +++++---- lib/librte_eal/common/eal_common_options.c | 20 ++- lib/librte_eal/common/eal_common_proc.c | 25 +++ lib/librte_eal/common/eal_internal_cfg.h | 4 + lib/librte_eal/common/eal_options.h | 2 + lib/librte_eal/linuxapp/eal/eal.c | 3 +- .../linuxapp/eal/eal_hugepage_info.c | 95 +++++++---- lib/librte_eal/linuxapp/eal/eal_memalloc.c | 150 ++++++++++++------ lib/librte_eal/linuxapp/eal/eal_memory.c | 16 +- 11 files changed, 276 insertions(+), 117 deletions(-) -- 2.17.1