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Mon, 05 Feb 2024 05:31:01 -0500 X-MC-Unique: okfUQQiLPhenDAWkir9Lsg-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.rdu2.redhat.com [10.11.54.8]) (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 AC3B51013663; Mon, 5 Feb 2024 10:31:00 +0000 (UTC) Received: from [10.39.208.18] (unknown [10.39.208.18]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 8EC63C15E61; Mon, 5 Feb 2024 10:30:59 +0000 (UTC) Message-ID: Date: Mon, 5 Feb 2024 11:30:58 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 1/2] net/virtio-user: improve kick performance with notification area mapping To: Srujana Challa , dev@dpdk.org, chenbox@nvidia.com Cc: jerinj@marvell.com, vattunuru@marvell.com References: <20231208053121.152929-1-schalla@marvell.com> <20240123105523.751151-1-schalla@marvell.com> From: Maxime Coquelin Autocrypt: addr=maxime.coquelin@redhat.com; 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charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit 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 1/23/24 11:55, Srujana Challa wrote: > This patch introduces new virtio-user callbacks to map the vq > notification area and implements it for the vhost-vDPA backend. > This is simply done by using mmap()/munmap() for the vhost-vDPA fd. > > And also adds code to write to queue notify address in notify callback. > This will help in increasing the kick performance. > > Signed-off-by: Srujana Challa > --- > drivers/net/virtio/virtio_user/vhost.h | 2 + > drivers/net/virtio/virtio_user/vhost_vdpa.c | 68 +++++++++++++++++++ > .../net/virtio/virtio_user/virtio_user_dev.c | 43 ++++++++++-- > .../net/virtio/virtio_user/virtio_user_dev.h | 2 + > drivers/net/virtio/virtio_user_ethdev.c | 37 ++++++++-- > 5 files changed, 143 insertions(+), 9 deletions(-) > For next time, please add a changelog either in a cover letter, or in the patch just before the stats. Reviewed-by: Maxime Coquelin Thanks, Maxime