From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Michael S. Tsirkin" Subject: Re: [PATCH net] gso: do GSO for local skb with size bigger than MTU Date: Wed, 3 Dec 2014 11:03:39 +0200 Message-ID: <20141203090339.GA9299@redhat.com> References: <1417156385-18276-1-git-send-email-fan.du@intel.com> <1417158128.3268.2@smtp.corp.redhat.com> <5A90DA2E42F8AE43BC4A093BF0678848DED92B@SHSMSX104.ccr.corp.intel.com> <20141201135225.GA16814@casper.infradead.org> <20141202154839.GB5344@t520.home> <20141202170927.GA9457@casper.infradead.org> <20141202173401.GB4126@redhat.com> <20141202174158.GB9457@casper.infradead.org> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Cc: "dev-yBygre7rU0TnMu66kgdUjQ@public.gmane.org" , "netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , Jason Wang , "Du, Fan" , "fw-HFFVJYpyMKqzQB+pC5nmwQ@public.gmane.org" , "davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org" To: Jesse Gross Return-path: Content-Disposition: inline In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces-yBygre7rU0TnMu66kgdUjQ@public.gmane.org Sender: "dev" List-Id: netdev.vger.kernel.org T24gVHVlLCBEZWMgMDIsIDIwMTQgYXQgMTA6MTI6MDRBTSAtMDgwMCwgSmVzc2UgR3Jvc3Mgd3Jv dGU6Cj4gT24gVHVlLCBEZWMgMiwgMjAxNCBhdCA5OjQxIEFNLCBUaG9tYXMgR3JhZiA8dGdyYWZA c3V1Zy5jaD4gd3JvdGU6Cj4gPiBPbiAxMi8wMi8xNCBhdCAwNzozNHBtLCBNaWNoYWVsIFMuIFRz aXJraW4gd3JvdGU6Cj4gPj4gT24gVHVlLCBEZWMgMDIsIDIwMTQgYXQgMDU6MDk6MjdQTSArMDAw MCwgVGhvbWFzIEdyYWYgd3JvdGU6Cj4gPj4gPiBPbiAxMi8wMi8xNCBhdCAwMTo0OHBtLCBGbGF2 aW8gTGVpdG5lciB3cm90ZToKPiA+PiA+ID4gV2hhdCBhYm91dCBjb250YWluZXJzIG9yIGFueSBv dGhlciB2aXJ0dWFsaXphdGlvbiBlbnZpcm9ubWVudCB0aGF0Cj4gPj4gPiA+IGRvZXNuJ3QgdXNl IFZpcnRpbz8KPiA+PiA+Cj4gPj4gPiBUaGUgaG9zdCBjYW4gZGljdGF0ZSB0aGUgTVRVIGluIHRo YXQgY2FzZSBmb3IgYm90aCB2ZXRoIG9yIE9WUwo+ID4+ID4gaW50ZXJuYWwgd2hpY2ggd291bGQg YmUgcHJpbWFyeSBjb250YWluZXIgcGx1bWJpbmcgdGVjaG5pcXVlcy4KPiA+Pgo+ID4+IEl0IHR5 cGljYWxseSBjYW4ndCBkbyB0aGlzIGVhc2lseSBmb3IgVk1zIHdpdGggZW11bGF0ZWQgZGV2aWNl czoKPiA+PiByZWFsIGV0aGVybmV0IHVzZXMgYSBmaXhlZCBNVFUuCj4gPj4KPiA+PiBJTUhPIGl0 J3MgY29uZnVzaW5nIHRvIHN1Z2dlc3QgTVRVIGFzIGEgZml4IGZvciB0aGlzIGJ1ZywgaXQncwo+ ID4+IGFuIHVucmVsYXRlZCBvcHRpbWl6YXRpb24uCj4gPj4gSUNNUF9ERVNUX1VOUkVBQ0gvSUNN UF9GUkFHX05FRURFRCBpcyB0aGUgcmlnaHQgZml4IGhlcmUuCj4gPgo+ID4gUE1UVSBkaXNjb3Zl cnkgb25seSByZXNvbHZlcyB0aGUgaXNzdWUgaWYgYW4gYWN0dWFsIElQIHN0YWNrIGlzCj4gPiBy dW5uaW5nIGluc2lkZSB0aGUgVk0uIFRoaXMgbWF5IG5vdCBiZSB0aGUgY2FzZSBhdCBhbGwuCj4g Cj4gSXQncyBhbHNvIG9ubHkgcmVhbGx5IGEgY29ycmVjdCB0aGluZyB0byBkbyBpZiB0aGUgSUNN UCBwYWNrZXQgaXMKPiBjb21pbmcgZnJvbSBhbiBMMyBub2RlLiBJZiB5b3UgYXJlIGRvaW5nIHN0 cmFpZ2h0IGJyaWRnaW5nIHRoZW4geW91Cj4gaGF2ZSB0byByZXNvcnQgdG8gaGFja3MgbGlrZSBP VlMgaGFkIGJlZm9yZSwgd2hpY2ggSSBhZ3JlZSBhcmUgbm90Cj4gcGFydGljdWxhcmx5IGRlc2ly YWJsZS4KClRoZSBpc3N1ZSBzZWVtcyB0byBiZSB0aGF0IGZ1bmRhbWVudGFsbHksIHRoaXMgaXMK YnJpZGdpbmcgaW50ZXJmYWNlcyB3aXRoIHZhcmlhYmxlIE1UVXMgKGV2ZW4gaWYgTVRVIHZhbHVl cwpvbiBkZXZpY2VzIGRvbid0IGxldCB1cyBmaWd1cmUgdGhpcyBvdXQpLQp0aGF0IGlzIGFscmVh ZHkgbm90IHN0cmFpZ2h0IGJyaWRnaW5nLCBhbmQKSSB3b3VsZCBhcmd1ZSBzZW5kaW5nIElDTVBz IGJhY2sgaXMgdGhlIHJpZ2h0IHRoaW5nIHRvIGRvLgoKCj4gPiBJIGFncmVlIHRoYXQgZXhwb3Np bmcgYW4gTVRVIHRvd2FyZHMgdGhlIGd1ZXN0IGlzIG5vdCBhcHBsaWNhYmxlCj4gPiBpbiBhbGwg c2l0dWF0aW9ucywgaW4gcGFydGljdWxhciBiZWNhdXNlIGl0IGlzIGRpZmZpY3VsdCB0byBkZWNp ZGUKPiA+IHdoYXQgTVRVIHRvIGV4cG9zZS4gSXQgaXMgYSByZWxhdGl2ZWx5IGVsZWdhbnQgc29s dXRpb24gaW4gYSBsb3QKPiA+IG9mIHZpcnR1YWxpemF0aW9uIGhvc3QgY2FzZXMgaG9va2VkIHVw IHRvIGFuIG9yY2hlc3RyYXRpb24gc3lzdGVtCj4gPiB0aG91Z2guCj4gCj4gSSBhbHNvIHRoaW5r IHRoaXMgaXMgdGhlIHJpZ2h0IHRoaW5nIHRvIGRvIGFzIGEgY29tbW9uIGNhc2UKPiBvcHRpbWl6 YXRpb24gYW5kIEkga25vdyBvdGhlciBwbGF0Zm9ybXMgKHN1Y2ggYXMgSHlwZXItVikgZG8gaXQu IEl0J3MKPiBub3QgYSBjb21wbGV0ZSBzb2x1dGlvbiBzbyB3ZSBzdGlsbCBuZWVkIHRoZSBvcmln aW5hbCBwYXRjaCBpbiB0aGlzCj4gdGhyZWFkIHRvIGhhbmRsZSB0aGluZ3MgdHJhbnNwYXJlbnRs eS4KCldlbGwsIGFzIEkgYmVsaWV2ZSBEYXZpZCAoYW5kIGluZGVwZW5kZW50bHkgSmFzb24pIGlz IHNheWluZywgaXQgbG9va3MgbGlrZQp0aGUgSUNNUHMgd2UgYXJlIHNlbmRpbmcgYmFjayBhZnRl ciBhcHBseWluZyB0aGUgb3JpZ2luYWwgcGF0Y2ggaGF2ZSB0aGUKd3JvbmcgTVRVLgoKQW5kIGlm IEkgdW5kZXJzdGFuZCB3aGF0IERhdmlkIGlzIHNheWluZyBoZXJlLCBJUCBpcyBhbHNvIHRoZSB3 cm9uZyBwbGFjZSB0bwpkbyBpdC4KCi0tIApNU1QKX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX18KZGV2IG1haWxpbmcgbGlzdApkZXZAb3BlbnZzd2l0Y2gub3Jn Cmh0dHA6Ly9vcGVudnN3aXRjaC5vcmcvbWFpbG1hbi9saXN0aW5mby9kZXYK