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Thu, 25 Apr 2024 09:47:45 -0400 X-MC-Unique: aHjFLQvWMlSeYJbNyWDaCg-1 Received: from smtp.corp.redhat.com (int-mx09.intmail.prod.int.rdu2.redhat.com [10.11.54.9]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 873871C3F0EE; Thu, 25 Apr 2024 13:47:44 +0000 (UTC) Received: from [10.39.208.23] (unknown [10.39.208.23]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 95CAB5C5CC2; Thu, 25 Apr 2024 13:47:43 +0000 (UTC) Message-ID: Date: Thu, 25 Apr 2024 15:47:42 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2] lib/vhost: add flag for async connection in client mode To: =?UTF-8?B?0KPRiNC60L7QsiDQlNCw0L3QuNC40Ls=?= , "dev@dpdk.org" , Thomas Monjalon Cc: Chenbo Xia References: <20240417083835.164456-1-udav@mts.ru> <20240417091250.187218-1-udav@mts.ru> From: Maxime Coquelin Autocrypt: addr=maxime.coquelin@redhat.com; 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charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org On 4/17/24 11:15, Ушков Даниил wrote: > This patch introduces a new flag RTE_VHOST_USER_ASYNC_CONNECT, > which in combination with the flag RTE_VHOST_USER_CLIENT makes > rte_vhost_driver_start connect asynchronously to the vhost server. > > Signed-off-by: Ушков Даниил > --- > Fixes: > 1. Fix warning about the name in signature. > 2. Fix warning about coding style. > > P.S. > Is it ok that name is not in ascii? I think it has to be, Thomas do you confirm? > Sorry, it could be hard to change it now. > > lib/vhost/rte_vhost.h | 1 + > lib/vhost/socket.c | 28 ++++++++++++++++------------ > 2 files changed, 17 insertions(+), 12 deletions(-) > > diff --git a/lib/vhost/rte_vhost.h b/lib/vhost/rte_vhost.h > index db92f05344..b0434c4b8d 100644 > --- a/lib/vhost/rte_vhost.h > +++ b/lib/vhost/rte_vhost.h > @@ -41,6 +41,7 @@ extern "C" { > #define RTE_VHOST_USER_ASYNC_COPY (1ULL << 7) > #define RTE_VHOST_USER_NET_COMPLIANT_OL_FLAGS (1ULL << 8) > #define RTE_VHOST_USER_NET_STATS_ENABLE (1ULL << 9) > +#define RTE_VHOST_USER_ASYNC_CONNECT (1ULL << 10) > > /* Features. */ > #ifndef VIRTIO_NET_F_GUEST_ANNOUNCE > diff --git a/lib/vhost/socket.c b/lib/vhost/socket.c > index 96b3ab5595..c681d53abb 100644 > --- a/lib/vhost/socket.c > +++ b/lib/vhost/socket.c > @@ -45,6 +45,7 @@ struct vhost_user_socket { > bool async_copy; > bool net_compliant_ol_flags; > bool stats_enabled; > + bool async_connect; > > /* > * The "supported_features" indicates the feature bits the > @@ -533,21 +534,23 @@ vhost_user_start_client(struct vhost_user_socket *vsocket) > const char *path = vsocket->path; > struct vhost_user_reconnect *reconn; > > - ret = vhost_user_connect_nonblock(vsocket->path, fd, (struct sockaddr *)&vsocket->un, > - sizeof(vsocket->un)); > - if (ret == 0) { > - vhost_user_add_connection(fd, vsocket); > - return 0; > - } > + if (!vsocket->async_connect || !vsocket->reconnect) { > + ret = vhost_user_connect_nonblock(vsocket->path, fd, > + (struct sockaddr *)&vsocket->un, sizeof(vsocket->un)); > + if (ret == 0) { > + vhost_user_add_connection(fd, vsocket); > + return 0; > + } > > - VHOST_CONFIG_LOG(path, WARNING, "failed to connect: %s", strerror(errno)); > + VHOST_CONFIG_LOG(path, WARNING, "failed to connect: %s", strerror(errno)); > > - if (ret == -2 || !vsocket->reconnect) { > - close(fd); > - return -1; > - } > + if (ret == -2 || !vsocket->reconnect) { > + close(fd); > + return -1; > + } > > - VHOST_CONFIG_LOG(path, INFO, "reconnecting..."); > + VHOST_CONFIG_LOG(path, INFO, "reconnecting..."); > + } > reconn = malloc(sizeof(*reconn)); > if (reconn == NULL) { > VHOST_CONFIG_LOG(path, ERR, "failed to allocate memory for reconnect"); > @@ -930,6 +933,7 @@ 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->async_connect = flags & RTE_VHOST_USER_ASYNC_CONNECT; > if (vsocket->is_vduse) > vsocket->iommu_support = true; > else