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[79.183.72.147]) by smtp.gmail.com with ESMTPSA id z63sm4885315wme.8.2021.01.12.11.42.13 (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Tue, 12 Jan 2021 11:42:16 -0800 (PST) From: Yuri Benditovich To: davem@davemloft.net, kuba@kernel.org, mst@redhat.com, jasowang@redhat.com, ast@kernel.org, daniel@iogearbox.net, andrii@kernel.org, kafai@fb.com, songliubraving@fb.com, yhs@fb.com, john.fastabend@gmail.com, kpsingh@kernel.org, rdunlap@infradead.org, willemb@google.com, gustavoars@kernel.org, herbert@gondor.apana.org.au, steffen.klassert@secunet.com, nogikh@google.com, pablo@netfilter.org, decui@microsoft.com, cai@lca.pw, jakub@cloudflare.com, elver@google.com, pabeni@redhat.com, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, virtualization@lists.linux-foundation.org, bpf@vger.kernel.org Cc: yan@daynix.com Subject: [RFC PATCH 7/7] tun: report new tun feature IFF_HASH Date: Tue, 12 Jan 2021 21:41:43 +0200 Message-Id: <20210112194143.1494-8-yuri.benditovich@daynix.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210112194143.1494-1-yuri.benditovich@daynix.com> References: <20210112194143.1494-1-yuri.benditovich@daynix.com> Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org IFF_HASH feature indicates that the tun supports TUNSETHASHPOPULATION ioctl and can propagate the hash data to the virtio-net packet. Signed-off-by: Yuri Benditovich --- drivers/net/tun.c | 2 +- include/uapi/linux/if_tun.h | 1 + 2 files changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/tun.c b/drivers/net/tun.c index 214feb0b16fb..b46aa8941a9d 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -88,7 +88,7 @@ static void tun_default_link_ksettings(struct net_device *dev, #define TUN_VNET_LE 0x80000000 #define TUN_VNET_BE 0x40000000 -#define TUN_FEATURES (IFF_NO_PI | IFF_ONE_QUEUE | IFF_VNET_HDR | \ +#define TUN_FEATURES (IFF_NO_PI | IFF_ONE_QUEUE | IFF_VNET_HDR | IFF_HASH |\ IFF_MULTI_QUEUE | IFF_NAPI | IFF_NAPI_FRAGS) #define GOODCOPY_LEN 128 diff --git a/include/uapi/linux/if_tun.h b/include/uapi/linux/if_tun.h index 0fd43533da26..116b84ede3a0 100644 --- a/include/uapi/linux/if_tun.h +++ b/include/uapi/linux/if_tun.h @@ -73,6 +73,7 @@ #define IFF_ONE_QUEUE 0x2000 #define IFF_VNET_HDR 0x4000 #define IFF_TUN_EXCL 0x8000 +#define IFF_HASH 0x0080 #define IFF_MULTI_QUEUE 0x0100 #define IFF_ATTACH_QUEUE 0x0200 #define IFF_DETACH_QUEUE 0x0400 -- 2.17.1