From: Maxime Coquelin <maxime.coquelin@redhat.com>
To: dev@dpdk.org, david.marchand@redhat.com, chenbo.xia@intel.com,
mkp@redhat.com, fbl@redhat.com, jasowang@redhat.com,
cunming.liang@intel.com, xieyongji@bytedance.com,
echaudro@redhat.com, eperezma@redhat.com, amorenoz@redhat.com
Cc: Maxime Coquelin <maxime.coquelin@redhat.com>
Subject: [RFC 12/27] vhost: add IOTLB cache entry removal callback
Date: Fri, 31 Mar 2023 17:42:44 +0200 [thread overview]
Message-ID: <20230331154259.1447831-13-maxime.coquelin@redhat.com> (raw)
In-Reply-To: <20230331154259.1447831-1-maxime.coquelin@redhat.com>
VDUSE will need to munmap() the IOTLB entry on removal
from the cache, as it performs mmap() before insertion.
This patch introduces a callback that VDUSE layer will
implement to achieve this.
Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
---
lib/vhost/iotlb.c | 12 ++++++++++++
lib/vhost/vhost.h | 4 ++++
2 files changed, 16 insertions(+)
diff --git a/lib/vhost/iotlb.c b/lib/vhost/iotlb.c
index 188dfb8e38..86b0be62b4 100644
--- a/lib/vhost/iotlb.c
+++ b/lib/vhost/iotlb.c
@@ -25,6 +25,15 @@ struct vhost_iotlb_entry {
#define IOTLB_CACHE_SIZE 2048
+static void
+vhost_user_iotlb_remove_notify(struct virtio_net *dev, struct vhost_iotlb_entry *entry)
+{
+ if (dev->backend_ops->iotlb_remove_notify == NULL)
+ return;
+
+ dev->backend_ops->iotlb_remove_notify(entry->uaddr, entry->uoffset, entry->size);
+}
+
static bool
vhost_user_iotlb_share_page(struct vhost_iotlb_entry *a, struct vhost_iotlb_entry *b)
{
@@ -198,6 +207,7 @@ vhost_user_iotlb_cache_remove_all(struct virtio_net *dev)
vhost_user_iotlb_set_dump(node);
TAILQ_REMOVE(&dev->iotlb_list, node, next);
+ vhost_user_iotlb_remove_notify(dev, node);
vhost_user_iotlb_pool_put(dev, node);
}
@@ -223,6 +233,7 @@ vhost_user_iotlb_cache_random_evict(struct virtio_net *dev)
vhost_user_iotlb_clear_dump(node, prev_node, next_node);
TAILQ_REMOVE(&dev->iotlb_list, node, next);
+ vhost_user_iotlb_remove_notify(dev, node);
vhost_user_iotlb_pool_put(dev, node);
dev->iotlb_cache_nr--;
break;
@@ -314,6 +325,7 @@ vhost_user_iotlb_cache_remove(struct virtio_net *dev, uint64_t iova, uint64_t si
vhost_user_iotlb_clear_dump(node, prev_node, next_node);
TAILQ_REMOVE(&dev->iotlb_list, node, next);
+ vhost_user_iotlb_remove_notify(dev, node);
vhost_user_iotlb_pool_put(dev, node);
dev->iotlb_cache_nr--;
} else {
diff --git a/lib/vhost/vhost.h b/lib/vhost/vhost.h
index cc5c707205..2ad26f6951 100644
--- a/lib/vhost/vhost.h
+++ b/lib/vhost/vhost.h
@@ -89,10 +89,14 @@
for (iter = val; iter < num; iter++)
#endif
+struct virtio_net;
+typedef void (*vhost_iotlb_remove_notify)(uint64_t addr, uint64_t off, uint64_t size);
+
/**
* Structure that contains backend-specific ops.
*/
struct vhost_backend_ops {
+ vhost_iotlb_remove_notify iotlb_remove_notify;
};
/**
--
2.39.2
next prev parent reply other threads:[~2023-03-31 15:44 UTC|newest]
Thread overview: 79+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-31 15:42 [RFC 00/27] Add VDUSE support to Vhost library Maxime Coquelin
2023-03-31 15:42 ` [RFC 01/27] vhost: fix missing guest notif stat increment Maxime Coquelin
2023-04-24 2:57 ` Xia, Chenbo
2023-03-31 15:42 ` [RFC 02/27] vhost: fix invalid call FD handling Maxime Coquelin
2023-04-24 2:58 ` Xia, Chenbo
2023-03-31 15:42 ` [RFC 03/27] vhost: fix IOTLB entries overlap check with previous entry Maxime Coquelin
2023-04-17 19:15 ` Mike Pattrick
2023-04-24 2:58 ` Xia, Chenbo
2023-03-31 15:42 ` [RFC 04/27] vhost: add helper of IOTLB entries coredump Maxime Coquelin
2023-04-24 2:59 ` Xia, Chenbo
2023-03-31 15:42 ` [RFC 05/27] vhost: add helper for IOTLB entries shared page check Maxime Coquelin
2023-04-17 19:39 ` Mike Pattrick
2023-04-19 9:35 ` Maxime Coquelin
2023-04-19 14:52 ` Mike Pattrick
2023-04-24 2:59 ` Xia, Chenbo
2023-03-31 15:42 ` [RFC 06/27] vhost: don't dump unneeded pages with IOTLB Maxime Coquelin
2023-04-20 17:11 ` Mike Pattrick
2023-04-24 3:00 ` Xia, Chenbo
2023-03-31 15:42 ` [RFC 07/27] vhost: change to single IOTLB cache per device Maxime Coquelin
2023-04-25 6:19 ` Xia, Chenbo
2023-05-03 13:47 ` Maxime Coquelin
2023-03-31 15:42 ` [RFC 08/27] vhost: add offset field to IOTLB entries Maxime Coquelin
2023-04-25 6:20 ` Xia, Chenbo
2023-03-31 15:42 ` [RFC 09/27] vhost: add page size info to IOTLB entry Maxime Coquelin
2023-04-25 6:20 ` Xia, Chenbo
2023-05-03 13:57 ` Maxime Coquelin
2023-03-31 15:42 ` [RFC 10/27] vhost: retry translating IOVA after IOTLB miss Maxime Coquelin
2023-05-05 5:07 ` Xia, Chenbo
2023-03-31 15:42 ` [RFC 11/27] vhost: introduce backend ops Maxime Coquelin
2023-05-05 5:07 ` Xia, Chenbo
2023-03-31 15:42 ` Maxime Coquelin [this message]
2023-05-05 5:07 ` [RFC 12/27] vhost: add IOTLB cache entry removal callback Xia, Chenbo
2023-05-25 11:20 ` Maxime Coquelin
2023-03-31 15:42 ` [RFC 13/27] vhost: add helper for IOTLB misses Maxime Coquelin
2023-03-31 15:42 ` [RFC 14/27] vhost: add helper for interrupt injection Maxime Coquelin
2023-05-05 5:07 ` Xia, Chenbo
2023-03-31 15:42 ` [RFC 15/27] vhost: add API to set max queue pairs Maxime Coquelin
2023-05-05 5:07 ` Xia, Chenbo
2023-05-25 11:23 ` Maxime Coquelin
2023-03-31 15:42 ` [RFC 16/27] net/vhost: use " Maxime Coquelin
2023-05-05 5:07 ` Xia, Chenbo
2023-03-31 15:42 ` [RFC 17/27] vhost: add control virtqueue support Maxime Coquelin
2023-05-09 5:29 ` Xia, Chenbo
2023-03-31 15:42 ` [RFC 18/27] vhost: add VDUSE device creation and destruction Maxime Coquelin
2023-05-09 5:31 ` Xia, Chenbo
2023-03-31 15:42 ` [RFC 19/27] vhost: add VDUSE callback for IOTLB miss Maxime Coquelin
2023-05-09 5:31 ` Xia, Chenbo
2023-03-31 15:42 ` [RFC 20/27] vhost: add VDUSE callback for IOTLB entry removal Maxime Coquelin
2023-05-09 5:32 ` Xia, Chenbo
2023-05-25 11:35 ` Maxime Coquelin
2023-03-31 15:42 ` [RFC 21/27] vhost: add VDUSE callback for IRQ injection Maxime Coquelin
2023-05-09 5:33 ` Xia, Chenbo
2023-03-31 15:42 ` [RFC 22/27] vhost: add VDUSE events handler Maxime Coquelin
2023-05-09 5:34 ` Xia, Chenbo
2023-03-31 15:42 ` [RFC 23/27] vhost: add support for virtqueue state get event Maxime Coquelin
2023-05-09 5:34 ` Xia, Chenbo
2023-03-31 15:42 ` [RFC 24/27] vhost: add support for VDUSE status set event Maxime Coquelin
2023-05-09 5:34 ` Xia, Chenbo
2023-03-31 15:42 ` [RFC 25/27] vhost: add support for VDUSE IOTLB update event Maxime Coquelin
2023-05-09 5:35 ` Xia, Chenbo
2023-05-25 11:43 ` Maxime Coquelin
2023-03-31 15:42 ` [RFC 26/27] vhost: add VDUSE device startup Maxime Coquelin
2023-05-09 5:35 ` Xia, Chenbo
2023-03-31 15:42 ` [RFC 27/27] vhost: add multiqueue support to VDUSE Maxime Coquelin
2023-05-09 5:35 ` Xia, Chenbo
2023-04-06 3:44 ` [RFC 00/27] Add VDUSE support to Vhost library Yongji Xie
2023-04-06 8:16 ` Maxime Coquelin
2023-04-06 11:04 ` Yongji Xie
2023-04-12 11:33 ` Ferruh Yigit
2023-04-12 15:28 ` Maxime Coquelin
2023-04-12 19:40 ` Morten Brørup
2023-04-13 7:08 ` Xia, Chenbo
2023-04-13 7:58 ` Morten Brørup
2023-04-13 7:59 ` Maxime Coquelin
2023-04-14 10:48 ` Ferruh Yigit
2023-04-14 12:06 ` Maxime Coquelin
2023-04-14 14:25 ` Ferruh Yigit
2023-04-17 3:10 ` Jason Wang
2023-05-05 5:53 ` Xia, Chenbo
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