From: wangyunjian <wangyunjian@huawei.com>
To: <dev@dpdk.org>
Cc: <anatoly.burakov@intel.com>, <jerry.lilijun@huawei.com>,
<xudingke@huawei.com>, Yunjian Wang <wangyunjian@huawei.com>
Subject: [dpdk-dev] [PATCH] vfio: change default per vfio_cfg map all dpdk segments for DMA
Date: Fri, 15 May 2020 19:01:54 +0800 [thread overview]
Message-ID: <1589540514-26972-1-git-send-email-wangyunjian@huawei.com> (raw)
From: Yunjian Wang <wangyunjian@huawei.com>
As all vfio_cfgs need to map all dpdk segments for DMA, but now only
default_vfio_cfg map it. This patch changes rte_vfio_setup_device()
as a default map, so that IOMMU progrming does notneed to map dpdk
segments separately.
Signed-off-by: Yunjian Wang <wangyunjian@huawei.com>
---
lib/librte_eal/linux/eal_vfio.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/lib/librte_eal/linux/eal_vfio.c b/lib/librte_eal/linux/eal_vfio.c
index d26e1649a..46160c328 100644
--- a/lib/librte_eal/linux/eal_vfio.c
+++ b/lib/librte_eal/linux/eal_vfio.c
@@ -807,10 +807,7 @@ rte_vfio_setup_device(const char *sysfs_base, const char *dev_addr,
* after registering callback, to prevent races
*/
rte_mcfg_mem_read_lock();
- if (vfio_cfg == default_vfio_cfg)
- ret = t->dma_map_func(vfio_container_fd);
- else
- ret = 0;
+ ret = t->dma_map_func(vfio_container_fd);
if (ret) {
RTE_LOG(ERR, EAL,
" %s DMA remapping failed, error %i (%s)\n",
--
2.23.0
next reply other threads:[~2020-05-15 11:02 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-15 11:01 wangyunjian [this message]
2020-09-21 13:04 ` Burakov, Anatoly
2021-04-06 5:24 ` Xia, Chenbo
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