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Tue, 18 Mar 2025 02:57:04 -0700 (PDT) Received: from localhost ([157.82.207.107]) by smtp.gmail.com with UTF8SMTPSA id d2e1a72fcca58-737115781f3sm9150521b3a.76.2025.03.18.02.57.00 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 18 Mar 2025 02:57:03 -0700 (PDT) From: Akihiko Odaki Date: Tue, 18 Mar 2025 18:56:51 +0900 Subject: [PATCH net-next 1/4] virtio_net: Split struct virtio_net_rss_config Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20250318-virtio-v1-1-344caf336ddd@daynix.com> References: <20250318-virtio-v1-0-344caf336ddd@daynix.com> In-Reply-To: <20250318-virtio-v1-0-344caf336ddd@daynix.com> To: "Michael S. Tsirkin" , Jason Wang , Xuan Zhuo , =?utf-8?q?Eugenio_P=C3=A9rez?= , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Andrew Melnychenko , Joe Damato , Philo Lu Cc: virtualization@lists.linux.dev, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, devel@daynix.com, Akihiko Odaki X-Mailer: b4 0.15-dev-edae6 X-Patchwork-Delegate: kuba@kernel.org struct virtio_net_rss_config was less useful in actual code because of a flexible array placed in the middle. Add new structures that split it into two to avoid having a flexible array in the middle. Suggested-by: Jason Wang Signed-off-by: Akihiko Odaki --- include/uapi/linux/virtio_net.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/include/uapi/linux/virtio_net.h b/include/uapi/linux/virtio_net.h index ac9174717ef1..963540deae66 100644 --- a/include/uapi/linux/virtio_net.h +++ b/include/uapi/linux/virtio_net.h @@ -327,6 +327,19 @@ struct virtio_net_rss_config { __u8 hash_key_data[/* hash_key_length */]; }; +struct virtio_net_rss_config_hdr { + __le32 hash_types; + __le16 indirection_table_mask; + __le16 unclassified_queue; + __le16 indirection_table[/* 1 + indirection_table_mask */]; +}; + +struct virtio_net_rss_config_trailer { + __le16 max_tx_vq; + __u8 hash_key_length; + __u8 hash_key_data[/* hash_key_length */]; +}; + #define VIRTIO_NET_CTRL_MQ_RSS_CONFIG 1 /*