From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Jan Beulich" Subject: [PATCH v2 1/2] xen-pciback: return proper values during BAR sizing Date: Tue, 07 Jun 2016 00:30:57 -0600 Message-ID: <5756864102000078000F269A__42665.0695190348$1465281130$gmane$org@prv-mh.provo.novell.com> References: <5756857802000078000F268D@prv-mh.provo.novell.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mail6.bemta5.messagelabs.com ([195.245.231.135]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1bAAXY-0002mR-7c for xen-devel@lists.xenproject.org; Tue, 07 Jun 2016 06:31:04 +0000 In-Reply-To: <5756857802000078000F268D@prv-mh.provo.novell.com> Content-Disposition: inline List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: David Vrabel , Boris Ostrovsky , Konrad Rzeszutek Wilk , Juergen Gross Cc: xen-devel , linux-kernel@vger.kernel.org List-Id: xen-devel@lists.xenproject.org UmVhZHMgZm9sbG93aW5nIHdyaXRlcyB3aXRoIGFsbCBhZGRyZXNzIGJpdHMgc2V0IHRvIDEgc2hv dWxkIHJldHVybiBhbGwKY2hhbmdlYWJsZSBhZGRyZXNzIGJpdHMgYXMgb25lLCBub3QgdGhlIEJB UiBzaXplIChub3IsIGFzIHdhcyB0aGUgY2FzZQpmb3IgdGhlIHVwcGVyIGhhbGYgb2YgNjQtYml0 IEJBUnMsIHRoZSBoaWdoIGhhbGYgb2YgdGhlIHJlZ2lvbidzIGVuZAphZGRyZXNzKS4gUHJlc3Vt YWJseSB0aGlzIGRpZG4ndCBjYXVzZSBhbnkgcHJvYmxlbXMgc28gZmFyIGJlY2F1c2UKY29uc3Vt ZXJzIHVzZSB0aGUgdmFsdWUgdG8gY2FsY3VsYXRlIHRoZSBzaXplICh1c3VhbGx5IHZpYSB2YWwg JiAtdmFsKSwKYW5kIGRvIG5vdGhpbmcgZWxzZSB3aXRoIGl0LgoKQnV0IGFsc28gY29uc2lkZXIg dGhlIGV4Y2VwdGlvbiBoZXJlOiBVbmltcGxlbWVudGVkIEJBUnMgc2hvdWxkIGFsd2F5cwpyZXR1 cm4gYWxsIHplcm9lcy4KCkFuZCBmaW5hbGx5LCB0aGUgY2hlY2sgZm9yIHdoZXRoZXIgdG8gcmV0 dXJuIHRoZSBzaXppbmcgYWRkcmVzcyBvbiByZWFkCmZvciB0aGUgUk9NIEJBUiBzaG91bGQgaWdu b3JlIGFsbCBub24tYWRkcmVzcyBiaXRzLCBub3QganVzdCB0aGUgUk9NCkVuYWJsZSBvbmUuCgpT aWduZWQtb2ZmLWJ5OiBKYW4gQmV1bGljaCA8amJldWxpY2hAc3VzZS5jb20+ClJldmlld2VkLWJ5 OiBCb3JpcyBPc3Ryb3Zza3kgPGJvcmlzLm9zdHJvdnNreUBvcmFjbGUuY29tPgotLS0KIGRyaXZl cnMveGVuL3hlbi1wY2liYWNrL2NvbmZfc3BhY2VfaGVhZGVyLmMgfCAgIDE4ICsrKysrKysrKysr LS0tLS0tLQogMSBmaWxlIGNoYW5nZWQsIDExIGluc2VydGlvbnMoKyksIDcgZGVsZXRpb25zKC0p CgotLS0gNC43LXJjMi14ZW4tcGNpYmFjay1CQVIub3JpZy9kcml2ZXJzL3hlbi94ZW4tcGNpYmFj ay9jb25mX3NwYWNlX2hlYWRlci5jCisrKyA0LjctcmMyLXhlbi1wY2liYWNrLUJBUi9kcml2ZXJz L3hlbi94ZW4tcGNpYmFjay9jb25mX3NwYWNlX2hlYWRlci5jCkBAIC0xNDUsNyArMTQ1LDcgQEAg c3RhdGljIGludCByb21fd3JpdGUoc3RydWN0IHBjaV9kZXYgKmRldgogCS8qIEEgd3JpdGUgdG8g b2J0YWluIHRoZSBsZW5ndGggbXVzdCBoYXBwZW4gYXMgYSAzMi1iaXQgd3JpdGUuCiAJICogVGhp cyBkb2VzIG5vdCAoeWV0KSBzdXBwb3J0IHdyaXRpbmcgaW5kaXZpZHVhbCBieXRlcwogCSAqLwot CWlmICh2YWx1ZSA9PSB+UENJX1JPTV9BRERSRVNTX0VOQUJMRSkKKwlpZiAoKHZhbHVlIHwgflBD SV9ST01fQUREUkVTU19NQVNLKSA9PSB+MCkKIAkJYmFyLT53aGljaCA9IDE7CiAJZWxzZSB7CiAJ CXUzMiB0bXB2YWw7CkBAIC0yMjUsMzggKzIyNSw0MiBAQCBzdGF0aWMgaW5saW5lIHZvaWQgcmVh ZF9kZXZfYmFyKHN0cnVjdCBwCiAJCQkgICAoUENJX0JBU0VfQUREUkVTU19TUEFDRV9NRU1PUlkg fAogCQkJCVBDSV9CQVNFX0FERFJFU1NfTUVNX1RZUEVfNjQpKSkgewogCQkJYmFyX2luZm8tPnZh bCA9IHJlc1twb3MgLSAxXS5zdGFydCA+PiAzMjsKLQkJCWJhcl9pbmZvLT5sZW5fdmFsID0gcmVz W3BvcyAtIDFdLmVuZCA+PiAzMjsKKwkJCWJhcl9pbmZvLT5sZW5fdmFsID0gLXJlc291cmNlX3Np emUoJnJlc1twb3MgLSAxXSkgPj4gMzI7CiAJCQlyZXR1cm47CiAJCX0KIAl9CiAKKwlpZiAoIXJl c1twb3NdLmZsYWdzIHx8CisJICAgIChyZXNbcG9zXS5mbGFncyAmIChJT1JFU09VUkNFX0RJU0FC TEVEIHwgSU9SRVNPVVJDRV9VTlNFVCB8CisJCQkgICAgICAgSU9SRVNPVVJDRV9CVVNZKSkpCisJ CXJldHVybjsKKwogCWJhcl9pbmZvLT52YWwgPSByZXNbcG9zXS5zdGFydCB8CiAJCQkocmVzW3Bv c10uZmxhZ3MgJiBQQ0lfUkVHSU9OX0ZMQUdfTUFTSyk7Ci0JYmFyX2luZm8tPmxlbl92YWwgPSBy ZXNvdXJjZV9zaXplKCZyZXNbcG9zXSk7CisJYmFyX2luZm8tPmxlbl92YWwgPSAtcmVzb3VyY2Vf c2l6ZSgmcmVzW3Bvc10pIHwKKwkJCSAgICAocmVzW3Bvc10uZmxhZ3MgJiBQQ0lfUkVHSU9OX0ZM QUdfTUFTSyk7CiB9CiAKIHN0YXRpYyB2b2lkICpiYXJfaW5pdChzdHJ1Y3QgcGNpX2RldiAqZGV2 LCBpbnQgb2Zmc2V0KQogewotCXN0cnVjdCBwY2lfYmFyX2luZm8gKmJhciA9IGttYWxsb2Moc2l6 ZW9mKCpiYXIpLCBHRlBfS0VSTkVMKTsKKwlzdHJ1Y3QgcGNpX2Jhcl9pbmZvICpiYXIgPSBremFs bG9jKHNpemVvZigqYmFyKSwgR0ZQX0tFUk5FTCk7CiAKIAlpZiAoIWJhcikKIAkJcmV0dXJuIEVS Ul9QVFIoLUVOT01FTSk7CiAKIAlyZWFkX2Rldl9iYXIoZGV2LCBiYXIsIG9mZnNldCwgfjApOwot CWJhci0+d2hpY2ggPSAwOwogCiAJcmV0dXJuIGJhcjsKIH0KIAogc3RhdGljIHZvaWQgKnJvbV9p bml0KHN0cnVjdCBwY2lfZGV2ICpkZXYsIGludCBvZmZzZXQpCiB7Ci0Jc3RydWN0IHBjaV9iYXJf aW5mbyAqYmFyID0ga21hbGxvYyhzaXplb2YoKmJhciksIEdGUF9LRVJORUwpOworCXN0cnVjdCBw Y2lfYmFyX2luZm8gKmJhciA9IGt6YWxsb2Moc2l6ZW9mKCpiYXIpLCBHRlBfS0VSTkVMKTsKIAog CWlmICghYmFyKQogCQlyZXR1cm4gRVJSX1BUUigtRU5PTUVNKTsKIAogCXJlYWRfZGV2X2Jhcihk ZXYsIGJhciwgb2Zmc2V0LCB+UENJX1JPTV9BRERSRVNTX0VOQUJMRSk7Ci0JYmFyLT53aGljaCA9 IDA7CiAKIAlyZXR1cm4gYmFyOwogfQoKCgoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX18KWGVuLWRldmVsIG1haWxpbmcgbGlzdApYZW4tZGV2ZWxAbGlzdHMu eGVuLm9yZwpodHRwOi8vbGlzdHMueGVuLm9yZy94ZW4tZGV2ZWwK