From: Alexey Kardashevskiy <aik@ozlabs.ru>
To: dev@dpdk.org
Cc: Alexey Kardashevskiy <aik@ozlabs.ru>,
JPF@zurich.ibm.com,
Gowrishankar Muthukrishnan <gowrishankar.m@in.ibm.com>
Subject: [dpdk-dev] [PATCH dpdk 4/5] vfio: Do try setting IOMMU type if already set
Date: Thu, 20 Apr 2017 17:24:01 +1000 [thread overview]
Message-ID: <20170420072402.38106-5-aik@ozlabs.ru> (raw)
In-Reply-To: <20170420072402.38106-1-aik@ozlabs.ru>
The existing code correctly checks if a container is set to a group and
does not try attaching a group to a container for a second/third/...
device from the same IOMMU group.
However it still tries to set IOMMU type to a container for every device
in a group which produces failure and closes container and group fds.
This moves vfio_set_iommu_type() and DMA mapping code under:
if (!(group_status.flags & VFIO_GROUP_FLAGS_CONTAINER_SET))
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
---
lib/librte_eal/linuxapp/eal/eal_vfio.c | 50 +++++++++++++++++-----------------
1 file changed, 25 insertions(+), 25 deletions(-)
diff --git a/lib/librte_eal/linuxapp/eal/eal_vfio.c b/lib/librte_eal/linuxapp/eal/eal_vfio.c
index 6e2e84ca7..46f951f4d 100644
--- a/lib/librte_eal/linuxapp/eal/eal_vfio.c
+++ b/lib/librte_eal/linuxapp/eal/eal_vfio.c
@@ -298,33 +298,33 @@ vfio_setup_device(const char *sysfs_base, const char *dev_addr,
clear_group(vfio_group_fd);
return -1;
}
- }
- /*
- * pick an IOMMU type and set up DMA mappings for container
- *
- * needs to be done only once, only when first group is assigned to
- * a container and only in primary process. Note this can happen several
- * times with the hotplug functionality.
- */
- if (internal_config.process_type == RTE_PROC_PRIMARY &&
- vfio_cfg.vfio_active_groups == 1) {
- /* select an IOMMU type which we will be using */
- const struct vfio_iommu_type *t =
+ /*
+ * pick an IOMMU type and set up DMA mappings for container
+ *
+ * needs to be done only once, only when first group is assigned to
+ * a container and only in primary process. Note this can happen several
+ * times with the hotplug functionality.
+ */
+ if (internal_config.process_type == RTE_PROC_PRIMARY &&
+ vfio_cfg.vfio_active_groups == 1) {
+ /* select an IOMMU type which we will be using */
+ const struct vfio_iommu_type *t =
vfio_set_iommu_type(vfio_cfg.vfio_container_fd);
- if (!t) {
- RTE_LOG(ERR, EAL, " %s failed to select IOMMU type\n", dev_addr);
- close(vfio_group_fd);
- clear_group(vfio_group_fd);
- return -1;
- }
- ret = t->dma_map_func(vfio_cfg.vfio_container_fd);
- if (ret) {
- RTE_LOG(ERR, EAL, " %s DMA remapping failed, "
- "error %i (%s)\n", dev_addr, errno, strerror(errno));
- close(vfio_group_fd);
- clear_group(vfio_group_fd);
- return -1;
+ if (!t) {
+ RTE_LOG(ERR, EAL, " %s failed to select IOMMU type\n", dev_addr);
+ close(vfio_group_fd);
+ clear_group(vfio_group_fd);
+ return -1;
+ }
+ ret = t->dma_map_func(vfio_cfg.vfio_container_fd);
+ if (ret) {
+ RTE_LOG(ERR, EAL, " %s DMA remapping failed, "
+ "error %i (%s)\n", dev_addr, errno, strerror(errno));
+ close(vfio_group_fd);
+ clear_group(vfio_group_fd);
+ return -1;
+ }
}
}
--
2.11.0
next prev parent reply other threads:[~2017-04-20 7:24 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-20 7:23 [dpdk-dev] [PATCH dpdk 0/5] ppc64/spapr: Attempt to use on POWER8 Alexey Kardashevskiy
2017-04-20 7:23 ` [dpdk-dev] [PATCH dpdk 1/5] vfio/ppc64/spapr: Use correct structures for add/remove windows Alexey Kardashevskiy
2017-04-20 7:23 ` [dpdk-dev] [PATCH dpdk 2/5] pci: Initialize common rte driver pointer Alexey Kardashevskiy
2017-04-24 9:28 ` Burakov, Anatoly
2017-04-20 7:24 ` [dpdk-dev] [PATCH dpdk 3/5] RFC: bnx2x: Update firmware versions Alexey Kardashevskiy
2017-04-20 7:24 ` Alexey Kardashevskiy [this message]
2017-04-20 19:31 ` [dpdk-dev] [PATCH dpdk 4/5] vfio: Do try setting IOMMU type if already set gowrishankar muthukrishnan
2017-04-21 8:54 ` Andrew Rybchenko
2017-04-26 7:50 ` Alexey Kardashevskiy
2017-04-26 8:27 ` Burakov, Anatoly
2017-04-26 8:45 ` Alejandro Lucero
2017-04-26 8:58 ` Burakov, Anatoly
2017-04-26 10:24 ` Alejandro Lucero
2017-04-20 7:24 ` [dpdk-dev] [PATCH dpdk 5/5] RFC: vfio/ppc64/spapr: Use correct bus addresses for DMA map Alexey Kardashevskiy
2017-04-20 9:04 ` Jonas Pfefferle1
2017-04-20 13:25 ` Alexey Kardashevskiy
2017-04-20 14:22 ` Alexey Kardashevskiy
2017-04-20 15:15 ` Jonas Pfefferle1
2017-04-20 22:01 ` Alexey Kardashevskiy
2017-04-20 19:16 ` gowrishankar muthukrishnan
2017-04-21 3:42 ` Alexey Kardashevskiy
2017-04-21 8:43 ` Alexey Kardashevskiy
[not found] ` <OF6F33ED54.7950E1EF-ONC1258109.003295E3-C1258109.00333E2E@notes.na.collabserv.com>
2017-04-22 0:12 ` Alexey Kardashevskiy
2017-04-24 9:40 ` Burakov, Anatoly
2017-04-21 8:51 ` gowrishankar muthukrishnan
[not found] ` <OF45247CC5.192F9D29-ONC1258109.002D6497-C1258109.002F2868@notes.na.collabserv.com>
2017-04-21 8:59 ` Alexey Kardashevskiy
2017-04-22 21:11 ` [dpdk-dev] [PATCH dpdk 0/5] ppc64/spapr: Attempt to use on POWER8 Olga Shern
2017-04-23 13:35 ` Alexey Kardashevskiy
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