From: Anatoly Burakov <anatoly.burakov@intel.com>
To: dev@dpdk.org
Cc: andras.kovacs@ericsson.com, laszlo.vadkeri@ericsson.com,
keith.wiles@intel.com, benjamin.walker@intel.com,
bruce.richardson@intel.com, thomas@monjalon.net
Subject: [dpdk-dev] [PATCH 23/23] eal: map/unmap memory with VFIO when alloc/free pages
Date: Tue, 19 Dec 2017 11:04:56 +0000 [thread overview]
Message-ID: <4d6dbd867adc051a3cf444d365c2aae604821f77.1513680516.git.anatoly.burakov@intel.com> (raw)
In-Reply-To: <cover.1513680516.git.anatoly.burakov@intel.com>
In-Reply-To: <cover.1513680516.git.anatoly.burakov@intel.com>
Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
---
lib/librte_eal/linuxapp/eal/eal_memalloc.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/lib/librte_eal/linuxapp/eal/eal_memalloc.c b/lib/librte_eal/linuxapp/eal/eal_memalloc.c
index 13172a0..8b3f219 100755
--- a/lib/librte_eal/linuxapp/eal/eal_memalloc.c
+++ b/lib/librte_eal/linuxapp/eal/eal_memalloc.c
@@ -61,6 +61,7 @@
#include <rte_eal_memconfig.h>
#include <rte_eal.h>
#include <rte_memory.h>
+#include <rte_iommu.h>
#include "eal_filesystem.h"
#include "eal_internal_cfg.h"
@@ -259,6 +260,11 @@ alloc_page(struct rte_memseg *ms, void *addr, uint64_t size, int socket_id,
ms->iova = iova;
ms->socket_id = socket_id;
+ /* map the segment so that VFIO has access to it */
+ if (rte_iommu_dma_map(ms->addr_64, iova, size)) {
+ RTE_LOG(DEBUG, EAL, "Cannot register segment with VFIO\n");
+ }
+
goto out;
mapped:
@@ -295,6 +301,11 @@ free_page(struct rte_memseg *ms, struct hugepage_info *hi, unsigned list_idx,
list_idx * RTE_MAX_MEMSEG_PER_LIST + seg_idx);
}
+ /* unmap the segment from VFIO */
+ if (rte_iommu_dma_unmap(ms->addr_64, ms->iova, ms->len)) {
+ RTE_LOG(DEBUG, EAL, "Cannot unregister segment with VFIO\n");
+ }
+
munmap(ms->addr, ms->hugepage_sz);
// TODO: race condition?
--
2.7.4
next prev parent reply other threads:[~2017-12-19 11:05 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-12-19 11:04 [dpdk-dev] [PATCH 00/23] Dynamic memory allocation for DPDK Anatoly Burakov
2017-12-19 11:04 ` [dpdk-dev] [PATCH 01/23] eal: move get_virtual_area out of linuxapp eal_memory.c Anatoly Burakov
2017-12-19 11:04 ` [dpdk-dev] [PATCH 02/23] eal: add function to report number of detected sockets Anatoly Burakov
2017-12-19 11:04 ` [dpdk-dev] [PATCH 03/23] eal: add rte_fbarray Anatoly Burakov
2017-12-19 11:04 ` [dpdk-dev] [PATCH 04/23] eal: move all locking to heap Anatoly Burakov
2017-12-19 11:04 ` [dpdk-dev] [PATCH 05/23] eal: protect malloc heap stats with a lock Anatoly Burakov
2017-12-19 11:04 ` [dpdk-dev] [PATCH 06/23] eal: make malloc a doubly-linked list Anatoly Burakov
2017-12-19 11:04 ` [dpdk-dev] [PATCH 07/23] eal: make malloc_elem_join_adjacent_free public Anatoly Burakov
2017-12-19 11:04 ` [dpdk-dev] [PATCH 08/23] eal: add "single file segments" command-line option Anatoly Burakov
2017-12-19 11:04 ` [dpdk-dev] [PATCH 09/23] eal: add "legacy memory" option Anatoly Burakov
[not found] ` <cover.1513594170.git.anatoly.burakov@intel.com>
2017-12-19 11:04 ` [dpdk-dev] [RFC 01/23] eal/memory: move get_virtual_area out of linuxapp eal_memory.c Anatoly Burakov
2017-12-19 11:15 ` Burakov, Anatoly
2017-12-19 11:04 ` [dpdk-dev] [RFC 02/23] eal/lcore: add function to report number of detected sockets Anatoly Burakov
2017-12-19 11:04 ` [dpdk-dev] [RFC 04/23] eal/malloc: move all locking to heap Anatoly Burakov
2017-12-19 11:04 ` [dpdk-dev] [RFC 05/23] eal/malloc: protect malloc heap stats with a lock Anatoly Burakov
2017-12-19 11:04 ` [dpdk-dev] [RFC 06/23] eal/malloc: make malloc a doubly-linked list Anatoly Burakov
2017-12-19 11:04 ` [dpdk-dev] [RFC 07/23] eal/malloc: make malloc_elem_join_adjacent_free public Anatoly Burakov
2017-12-19 11:04 ` [dpdk-dev] [RFC 10/23] eal: populate hugepage counts from socket-specific sysfs path Anatoly Burakov
2017-12-19 11:04 ` [dpdk-dev] [RFC 12/23] eal/memalloc: add support for dynamic memory allocation Anatoly Burakov
2017-12-19 11:04 ` [dpdk-dev] [RFC 13/23] eal/memory: make use of dynamic memory allocation for init Anatoly Burakov
2017-12-19 11:04 ` [dpdk-dev] [RFC 14/23] eal/memory: add support for dynamic unmapping of pages Anatoly Burakov
2017-12-19 11:04 ` [dpdk-dev] [RFC 15/23] eal/memalloc: add function to check if memory is physically contiguous Anatoly Burakov
2017-12-19 11:04 ` [dpdk-dev] [RFC 16/23] eal/malloc: enable dynamic memory allocation/free on malloc/free Anatoly Burakov
2017-12-19 11:04 ` [dpdk-dev] [RFC 17/23] eal/malloc: add backend support for contiguous memory allocation Anatoly Burakov
2017-12-19 11:04 ` [dpdk-dev] [RFC 18/23] eal/malloc: add rte_malloc support for allocating contiguous memory Anatoly Burakov
2017-12-19 11:04 ` [dpdk-dev] [RFC 19/23] eal/memzone: add support for reserving physically contiguous memzones Anatoly Burakov
2017-12-19 11:04 ` [dpdk-dev] [RFC 20/23] eal/memzone: make memzones use rte_fbarray Anatoly Burakov
2017-12-19 11:04 ` [dpdk-dev] [RFC 21/23] lib/mempool: add support for the new memory allocation methods Anatoly Burakov
2017-12-19 11:04 ` [dpdk-dev] [RFC 23/23] eal/memalloc: register/unregister memory with VFIO when alloc/free pages Anatoly Burakov
2017-12-19 11:04 ` [dpdk-dev] [PATCH 10/23] eal: read hugepage counts from node-specific sysfs path Anatoly Burakov
2017-12-19 11:04 ` [dpdk-dev] [PATCH 11/23] eal: replace memseg with memseg lists Anatoly Burakov
2017-12-19 11:04 ` [dpdk-dev] [PATCH 12/23] eal: add support for dynamic memory allocation Anatoly Burakov
2017-12-19 11:04 ` [dpdk-dev] [PATCH 13/23] eal: make use of dynamic memory allocation for init Anatoly Burakov
2017-12-19 11:04 ` [dpdk-dev] [PATCH 14/23] eal: add support for dynamic unmapping of pages Anatoly Burakov
2017-12-19 11:04 ` [dpdk-dev] [PATCH 15/23] eal: add API to check if memory is physically contiguous Anatoly Burakov
2017-12-19 11:04 ` [dpdk-dev] [PATCH 16/23] eal: enable dynamic memory allocation/free on malloc/free Anatoly Burakov
2017-12-19 11:04 ` [dpdk-dev] [PATCH 17/23] eal: add backend support for contiguous memory allocation Anatoly Burakov
2017-12-19 11:04 ` [dpdk-dev] [PATCH 18/23] eal: add rte_malloc support for allocating contiguous memory Anatoly Burakov
2017-12-19 11:04 ` [dpdk-dev] [PATCH 19/23] eal: enable reserving physically contiguous memzones Anatoly Burakov
2017-12-19 11:04 ` [dpdk-dev] [PATCH 20/23] eal: make memzones use rte_fbarray Anatoly Burakov
2017-12-19 11:04 ` [dpdk-dev] [PATCH 21/23] mempool: add support for the new memory allocation methods Anatoly Burakov
2017-12-19 11:04 ` [dpdk-dev] [PATCH 22/23] vfio: allow to map other memory regions Anatoly Burakov
2017-12-19 11:04 ` Anatoly Burakov [this message]
2017-12-19 11:15 ` [dpdk-dev] [PATCH 00/23] Dynamic memory allocation for DPDK Burakov, Anatoly
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4d6dbd867adc051a3cf444d365c2aae604821f77.1513680516.git.anatoly.burakov@intel.com \
--to=anatoly.burakov@intel.com \
--cc=andras.kovacs@ericsson.com \
--cc=benjamin.walker@intel.com \
--cc=bruce.richardson@intel.com \
--cc=dev@dpdk.org \
--cc=keith.wiles@intel.com \
--cc=laszlo.vadkeri@ericsson.com \
--cc=thomas@monjalon.net \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).