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Date: Tue, 08 Dec 2015 21:20:14 -0500 (EST) From: David Miller <davem@...emloft.net> To: tom@...bertland.com Cc: jesse@...nel.org, linville@...driver.com, netdev@...r.kernel.org, jesse@...ira.com, kernel-team@...com Subject: Re: [PATCH net-next 3/3] geneve: Remote Checksum Offload support From: Tom Herbert <tom@...bertland.com> Date: Tue, 8 Dec 2015 16:11:56 -0800 > I thought about a TLV implementation but there is no base support in > the kernel for it. It would be great if you could implement the TLV > loop. Honestly, though, I'm still very leery of the processing > overhead associated with TLVs in the critical data path. In the > worst case of RCO we would need to fish for the RCO option though > the TLV list in both the GRO and normal path for each packet. If the > TLV lists are long then performance may be negatively affected > mitigating the value of RCO (needs to be measured). Open ended TLVs are to me likened to an attack vector waiting to happen, for the reasons Tom listed. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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