From: Maxime Coquelin <maxime.coquelin@redhat.com>
To: dev@dpdk.org, david.marchand@redhat.com, thomas@monjalon.net,
chenbo.xia@intel.com, aconole@redhat.com, ktraynor@redhat.com
Cc: Maxime Coquelin <maxime.coquelin@redhat.com>
Subject: [PATCH v2 2/2] vhost: force vIOMMU enablement with VDUSE
Date: Thu, 13 Jul 2023 13:29:05 +0200 [thread overview]
Message-ID: <20230713112905.233306-3-maxime.coquelin@redhat.com> (raw)
In-Reply-To: <20230713112905.233306-1-maxime.coquelin@redhat.com>
Unlike Vhost-user, VDUSE requires vIOMMU support.
This patch ignores whether RTE_VHOST_USER_IOMMU_SUPPORT
flag is passed at register time to avoid having application
to pass it for having working VDUSE device creation.
Fixes: 0adb8eccc6a6 ("vhost: add VDUSE device creation and destruction")
Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
---
lib/vhost/socket.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/lib/vhost/socket.c b/lib/vhost/socket.c
index 57dfe3d2fe..79f2138f60 100644
--- a/lib/vhost/socket.c
+++ b/lib/vhost/socket.c
@@ -932,7 +932,10 @@ rte_vhost_driver_register(const char *path, uint64_t flags)
vsocket->async_copy = flags & RTE_VHOST_USER_ASYNC_COPY;
vsocket->net_compliant_ol_flags = flags & RTE_VHOST_USER_NET_COMPLIANT_OL_FLAGS;
vsocket->stats_enabled = flags & RTE_VHOST_USER_NET_STATS_ENABLE;
- vsocket->iommu_support = flags & RTE_VHOST_USER_IOMMU_SUPPORT;
+ if (vsocket->is_vduse)
+ vsocket->iommu_support = true;
+ else
+ vsocket->iommu_support = flags & RTE_VHOST_USER_IOMMU_SUPPORT;
if (vsocket->async_copy &&
(flags & (RTE_VHOST_USER_IOMMU_SUPPORT |
@@ -986,7 +989,7 @@ rte_vhost_driver_register(const char *path, uint64_t flags)
vsocket->features &= ~seg_offload_features;
}
- if (!(flags & RTE_VHOST_USER_IOMMU_SUPPORT)) {
+ if (!vsocket->iommu_support) {
vsocket->supported_features &= ~(1ULL << VIRTIO_F_IOMMU_PLATFORM);
vsocket->features &= ~(1ULL << VIRTIO_F_IOMMU_PLATFORM);
}
--
2.41.0
next prev parent reply other threads:[~2023-07-13 11:29 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-13 11:29 [PATCH v2 0/2] vduse: TSO & vIOMMU fixes Maxime Coquelin
2023-07-13 11:29 ` [PATCH v2 1/2] vhost: fix net offload compliance Maxime Coquelin
2023-07-13 11:29 ` Maxime Coquelin [this message]
2023-07-13 12:47 ` [PATCH v2 2/2] vhost: force vIOMMU enablement with VDUSE Kevin Traynor
2023-07-13 13:42 ` Maxime Coquelin
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