74 lines
2.5 KiB
Diff
74 lines
2.5 KiB
Diff
From 0db23ec6808c3ff628d1b1940d2cd01fda0757d1 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Eugenio=20P=C3=A9rez?= <eperezma@redhat.com>
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Date: Tue, 23 Aug 2022 20:30:30 +0200
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Subject: [PATCH 12/29] vhost_net: Add NetClientInfo start callback
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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RH-Author: Laurent Vivier <lvivier@redhat.com>
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RH-MergeRequest: 117: vDPA SVQ Multiqueue support
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RH-Jira: RHELX-57
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RH-Acked-by: Jason Wang <jasowang@redhat.com>
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RH-Acked-by: Cindy Lu <lulu@redhat.com>
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RH-Acked-by: Eugenio Pérez <eperezma@redhat.com>
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RH-Commit: [12/25] b448657fa858a885879986059694d26d870155bc (redhat/centos-stream/src/qemu-kvm)
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This is used by the backend to perform actions before the device is
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started.
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In particular, vdpa net use it to map CVQ buffers to the device, so it
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can send control commands using them.
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Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
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Acked-by: Jason Wang <jasowang@redhat.com>
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Signed-off-by: Jason Wang <jasowang@redhat.com>
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(cherry picked from commit eb92b75380fc0f2368e22be45d1e2d1e2cd2f79c)
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Signed-off-by: Laurent Vivier <lvivier@redhat.com>
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---
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hw/net/vhost_net.c | 7 +++++++
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include/net/net.h | 2 ++
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2 files changed, 9 insertions(+)
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diff --git a/hw/net/vhost_net.c b/hw/net/vhost_net.c
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index ccac5b7a64..2e0baeba26 100644
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--- a/hw/net/vhost_net.c
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+++ b/hw/net/vhost_net.c
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@@ -244,6 +244,13 @@ static int vhost_net_start_one(struct vhost_net *net,
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struct vhost_vring_file file = { };
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int r;
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+ if (net->nc->info->start) {
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+ r = net->nc->info->start(net->nc);
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+ if (r < 0) {
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+ return r;
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+ }
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+ }
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+
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r = vhost_dev_enable_notifiers(&net->dev, dev);
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if (r < 0) {
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goto fail_notifiers;
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diff --git a/include/net/net.h b/include/net/net.h
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index 523136c7ac..ad9e80083a 100644
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--- a/include/net/net.h
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+++ b/include/net/net.h
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@@ -44,6 +44,7 @@ typedef struct NICConf {
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typedef void (NetPoll)(NetClientState *, bool enable);
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typedef bool (NetCanReceive)(NetClientState *);
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+typedef int (NetStart)(NetClientState *);
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typedef ssize_t (NetReceive)(NetClientState *, const uint8_t *, size_t);
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typedef ssize_t (NetReceiveIOV)(NetClientState *, const struct iovec *, int);
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typedef void (NetCleanup) (NetClientState *);
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@@ -71,6 +72,7 @@ typedef struct NetClientInfo {
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NetReceive *receive_raw;
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NetReceiveIOV *receive_iov;
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NetCanReceive *can_receive;
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+ NetStart *start;
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NetCleanup *cleanup;
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LinkStatusChanged *link_status_changed;
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QueryRxFilter *query_rx_filter;
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--
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2.31.1
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