From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Jan Beulich" Subject: Re: [RFC Patch v4 2/8] ioreq: bump the number of IOREQ page to 4 pages Date: Wed, 18 Apr 2018 02:19:49 -0600 Message-ID: <5AD6FFA502000078001BC458@prv1-mh.provo.novell.com> References: <1512546614-9937-1-git-send-email-chao.gao@intel.com> <1512546614-9937-3-git-send-email-chao.gao@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <1512546614-9937-3-git-send-email-chao.gao@intel.com> Content-Disposition: inline List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" To: Chao Gao Cc: Tim Deegan , Stefano Stabellini , Wei Liu , George Dunlap , Andrew Cooper , Ian Jackson , xen-devel@lists.xen.org, Paul Durrant List-Id: xen-devel@lists.xenproject.org Pj4+IE9uIDA2LjEyLjE3IGF0IDA4OjUwLCA8Y2hhby5nYW9AaW50ZWwuY29tPiB3cm90ZToKPiBP bmUgNEstYnl0ZSBwYWdlIGF0IG1vc3QgY29udGFpbnMgMTI4ICdpb3JlcV90Jy4gSW4gb3JkZXIg dG8gcmVtb3ZlIHRoZSB2Y3B1Cj4gbnVtYmVyIGNvbnN0cmFpbnQgaW1wb3NlZCBieSBvbmUgSU9S RVEgcGFnZSwgYnVtcCB0aGUgbnVtYmVyIG9mIElPUkVRIHBhZ2UgdG8KPiA0IHBhZ2VzLiBXaXRo IHRoaXMgcGF0Y2gsIG11bHRpcGxlIHBhZ2VzIGNhbiBiZSB1c2VkIGFzIElPUkVRIHBhZ2UuCgpJ biBjYXNlIEkgZGlkbid0IHNheSBzbyBiZWZvcmUgLSBJJ20gb3Bwb3NlZCB0byBzaW1wbHkgY2hh bmdpbmcgdGhlIHVwcGVyIGxpbWl0CmhlcmUuIFBsZWFzZSBtYWtlIHN1cmUgYW55IG51bWJlciBv ZiB2Q1BVLXMgY2FuIGJlIHN1cHBvcnRlZCBieSB0aGUgbmV3CmNvZGUgKGl0IGxvb2tzIGxpa2Ug aXQgbW9zdGx5IGRvZXMgYWxyZWFkeSwgc28gaXQgbWF5IGJlIG1haW5seSB0aGUgZGVzY3JpcHRp b24Kd2hpY2ggbmVlZHMgY2hhbmdpbmcpLiBJZiB3ZSB3YW50IHRvIGltcG9zZSBhbiB1cHBlciBs aW1pdCwgdGhpcyBzaG91bGRuJ3QKYWZmZWN0IHRoZSBpb3JlcSBwYWdlIGhhbmRsaW5nIGNvZGUg YXQgYWxsLgoKPiAtLS0gYS94ZW4vYXJjaC94ODYvaHZtL2lvcmVxLmMKPiArKysgYi94ZW4vYXJj aC94ODYvaHZtL2lvcmVxLmMKPiBAQCAtNjQsMTQgKzY0LDI0IEBAIHN0YXRpYyBzdHJ1Y3QgaHZt X2lvcmVxX3NlcnZlciAqZ2V0X2lvcmVxX3NlcnZlcihjb25zdCBzdHJ1Y3QgZG9tYWluICpkLAo+ ICAgICAgICAgICAgICBjb250aW51ZTsgXAo+ICAgICAgICAgIGVsc2UKPiAgCj4gKy8qIEl0ZXJh dGUgb3ZlciBhbGwgaW9yZXEgcGFnZXMgKi8KPiArI2RlZmluZSBGT1JfRUFDSF9JT1JFUV9QQUdF KHMsIGksIGlvcnApIFwKPiArICAgIGZvciAoIChpKSA9IDAsIGlvcnAgPSBzLT5pb3JlcTsgKGkp IDwgKHMpLT5pb3JlcV9wYWdlX25yOyAoaSkrKywgaW9ycCsrICkKCllvdSdyZSBnb2luZyB0b28g ZmFyIHdpdGggcGFyZW50aGVzaXphdGlvbiBoZXJlOiBKdXN0IGxpa2UgaW9ycCwgaSBpcyByZXF1 aXJlZCB0bwpiZSBhIHNpbXBsZSBpZGVudGlmaWVyIGFueXdheS4gT3RvaCB5b3UgcGFyZW50aGVz aXplIHMgb25seSBvbmNlLgoKPiArc3RhdGljIGlvcmVxX3QgKmdldF9pb3JlcV9mYWxsaWJsZShz dHJ1Y3QgaHZtX2lvcmVxX3NlcnZlciAqcywgc3RydWN0IHZjcHUgKnYpCgpXaGF0IGlzICJmYWxs aWJsZSI/IEFuZCB3aHkgc3VjaCBhIHNlcGFyYXRlIHdyYXBwZXIgYW55d2F5PyBCdXQgSSBndWVz cyBhIGxvdApvZiB0aGlzIHdpbGwgbmVlZCB0byBjaGFuZ2UgYW55d2F5IHdpdGggUGF1bCdzIHJl Y2VudCBjaGFuZ2VzLiBJJ20gdGhlcmVmb3JlIG5vdApnb2luZyB0byBsb29rIGluIGNsb3NlIGRl dGFpbCBhdCBhbnkgb2YgdGhpcy4KCj4gIHN0YXRpYyB2b2lkIGh2bV9pb3JlcV9zZXJ2ZXJfdW5t YXBfcGFnZXMoc3RydWN0IGh2bV9pb3JlcV9zZXJ2ZXIgKnMpCj4gIHsKPiAtICAgIGh2bV91bm1h cF9pb3JlcV9nZm4ocywgJnMtPmlvcmVxKTsKPiArICAgIGludCBpOwoKQXQgdGhlIGV4YW1wbGUg b2YgdGhpcyAtIHVuc2lnbmVkIGludCBwbGVhc2UgaW4gYWxsIGNhc2VzIHdoZXJlIHRoZSB2YWx1 ZSBjYW4ndCBnbwpuZWdhdGl2ZS4KCj4gQEAgLTY4OCw4ICs3NDEsMTUgQEAgc3RhdGljIGludCBo dm1faW9yZXFfc2VydmVyX2luaXQoc3RydWN0IGh2bV9pb3JlcV9zZXJ2ZXIgKnMsCj4gICAgICBJ TklUX0xJU1RfSEVBRCgmcy0+aW9yZXFfdmNwdV9saXN0KTsKPiAgICAgIHNwaW5fbG9ja19pbml0 KCZzLT5idWZpb3JlcV9sb2NrKTsKPiAgCj4gLSAgICBzLT5pb3JlcS5nZm4gPSBJTlZBTElEX0dG TjsKPiArICAgIEZPUl9FQUNIX0lPUkVRX1BBR0UocywgaSwgaW9ycCkKPiArICAgICAgICBpb3Jw LT5nZm4gPSBJTlZBTElEX0dGTjsKPiAgICAgIHMtPmJ1ZmlvcmVxLmdmbiA9IElOVkFMSURfR0ZO Owo+ICsgICAgcy0+aW9yZXFfcGFnZV9uciA9IChkLT5tYXhfdmNwdXMgKyBJT1JFUV9OVU1fUEVS X1BBR0UgLSAxKSAvCj4gKyAgICAgICAgICAgICAgICAgICAgICAgSU9SRVFfTlVNX1BFUl9QQUdF OwoKRElWX1JPVU5EX1VQKCkgLSBwbGVhc2UgZG9uJ3Qgb3Blbi1jb2RlIHRoaW5ncy4KCj4gLS0t IGEveGVuL2luY2x1ZGUvcHVibGljL2h2bS9wYXJhbXMuaAo+ICsrKyBiL3hlbi9pbmNsdWRlL3B1 YmxpYy9odm0vcGFyYW1zLmgKPiBAQCAtMjc5LDYgKzI3OSwxMiBAQAo+ICAjZGVmaW5lIFhFTl9I Vk1fTUNBX0NBUF9MTUNFICAgKHhlbl9ta191bGxvbmcoMSkgPDwgMCkKPiAgI2RlZmluZSBYRU5f SFZNX01DQV9DQVBfTUFTSyAgIFhFTl9IVk1fTUNBX0NBUF9MTUNFCj4gIAo+IC0jZGVmaW5lIEhW TV9OUl9QQVJBTVMgMzkKPiArLyoKPiArICogTnVtYmVyIG9mIHBhZ2VzIHRoYXQgYXJlIHJlc2Vy dmVkIGZvciBkZWZhdWx0IElPUkVRIHNlcnZlci4gVGhlIGJhc2UgUEZOCj4gKyAqIGlzIHNldCB2 aWEgSFZNX1BBUkFNX0lPUkVRX1BGTi4KPiArICovCj4gKyNkZWZpbmUgSFZNX1BBUkFNX0lPUkVR X1BBR0VTIDM5CgpXaHkgaXMgdGhpcyBuZWVkZWQ/IEl0IGNhbiBiZSBkZXJpdmVkIGZyb20gdGhl IHZDUFUgY291bnQgcGVybWl0dGVkIGZvciB0aGUKZG9tYWluLgoKSmFuCgoKCl9fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fClhlbi1kZXZlbCBtYWlsaW5nIGxp c3QKWGVuLWRldmVsQGxpc3RzLnhlbnByb2plY3Qub3JnCmh0dHBzOi8vbGlzdHMueGVucHJvamVj dC5vcmcvbWFpbG1hbi9saXN0aW5mby94ZW4tZGV2ZWw=