From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-11.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9A781C433E0 for ; Mon, 25 Jan 2021 22:13:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6D1862068D for ; Mon, 25 Jan 2021 22:13:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732060AbhAYWNr (ORCPT ); Mon, 25 Jan 2021 17:13:47 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60420 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732103AbhAYWKJ (ORCPT ); Mon, 25 Jan 2021 17:10:09 -0500 Received: from mail-qv1-xf30.google.com (mail-qv1-xf30.google.com [IPv6:2607:f8b0:4864:20::f30]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A959CC061573 for ; Mon, 25 Jan 2021 14:09:28 -0800 (PST) Received: by mail-qv1-xf30.google.com with SMTP id u16so4554576qvo.9 for ; Mon, 25 Jan 2021 14:09:28 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=broadcom.com; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=jGnytyOFdS+4eXJL9/0Moewd29bE7u7DyBqPtLmTC8Y=; b=Aksq/16LkFTwC6L5sRlpZ3OYAqr/9fzcgkXWLOFLFfmbJjbJfeucqph3RB12tGaQTQ qTHBJOmfHRrQy2wVcZsDPq7GQLgsbfXi2SwEWhNfRMjhjbnt4OWYS8UKRjEVGg/ibyNA pc7lIE/XQDpBDJB1JqhfbfrsxOrabK4bf5By0= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=jGnytyOFdS+4eXJL9/0Moewd29bE7u7DyBqPtLmTC8Y=; b=bG5tVfvbGnzqoNiOPAK3+IPwrfvuj6PsVl+B60tI3a4X6OcNTqcJNf2Ep8qQnangIc cuKOasR/ATKr5dRztQFzspAQfhmTxc+5GatT4kkbCnR3IzfUK/vBMh6hwlvSM5PFnxkC BChTI9JR74QB6L1RUJArtsd874+n1a09pEzW5uFYJuroRl/9MfWP7A8LVErY/ZQQUXaC 843qM7jve0KEkEJWjOv+3PglxL7ingPtojoHQQs8agP83ZRuCEmbOw1PFfYw48d7IB7R RGTdkfnQIEFu/w3G6Wnx06bvxQUtBFDcCkaJlbdxwOiYVKaAN3orKTMoWFm1NXcd3hpk fBUw== X-Gm-Message-State: AOAM531yEmex2mOAaJp8RDjLwm5gHe3txBTdHCzMcaeOEOQwpcSgOND4 pxSikux7v69g6N6ujRo/HAI110sktxhEwDVxU94RtQ== X-Google-Smtp-Source: ABdhPJz5679eYhNDR/G59+aWc+xzX5Npta9eCKvqpD3BE4fDJ/mgV+steWtroeJeQ6TokKA4Uo79XsetU6Aq7vra8Ps= X-Received: by 2002:a0c:b4a8:: with SMTP id c40mr2925270qve.60.1611612567340; Mon, 25 Jan 2021 14:09:27 -0800 (PST) MIME-Version: 1.0 References: In-Reply-To: From: Michael Chan Date: Mon, 25 Jan 2021 14:09:16 -0800 Message-ID: Subject: Re: [PATCH net-next] tg3: improve PCI VPD access To: Heiner Kallweit Cc: Jakub Kicinski , David Miller , Siva Reddy Kallam , Prashant Sreedharan , Michael Chan , "netdev@vger.kernel.org" Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha-256; boundary="000000000000a1ace305b9c0ca08" Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org --000000000000a1ace305b9c0ca08 Content-Type: text/plain; charset="UTF-8" On Fri, Jan 22, 2021 at 4:08 AM Heiner Kallweit wrote: > > When working on the PCI VPD code I also tested with a Broadcom BCM95719 > card. tg3 uses internal NVRAM access with this card, so I forced it to > PCI VPD mode for testing. PCI VPD access fails > (i + PCI_VPD_LRDT_TAG_SIZE + j > len) because only TG3_NVM_VPD_LEN (256) > bytes are read, but PCI VPD has 400 bytes on this card. > > So add a constant TG3_NVM_PCI_VPD_MAX_LEN that defines the maximum > PCI VPD size. The actual VPD size is returned by pci_read_vpd(). > In addition it's not worth looping over pci_read_vpd(). If we miss the > 125ms timeout per VPD dword read then definitely something is wrong, > and if the tg3 module loading is killed then there's also not much > benefit in retrying the VPD read. > > Signed-off-by: Heiner Kallweit Reviewed-by: Michael Chan Thanks. --000000000000a1ace305b9c0ca08 Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIIQQgYJKoZIhvcNAQcCoIIQMzCCEC8CAQExDzANBglghkgBZQMEAgEFADALBgkqhkiG9w0BBwGg gg2XMIIE6DCCA9CgAwIBAgIOSBtqCRO9gCTKXSLwFPMwDQYJKoZIhvcNAQELBQAwTDEgMB4GA1UE CxMXR2xvYmFsU2lnbiBSb290IENBIC0gUjMxEzARBgNVBAoTCkdsb2JhbFNpZ24xEzARBgNVBAMT Ckdsb2JhbFNpZ24wHhcNMTYwNjE1MDAwMDAwWhcNMjQwNjE1MDAwMDAwWjBdMQswCQYDVQQGEwJC RTEZMBcGA1UEChMQR2xvYmFsU2lnbiBudi1zYTEzMDEGA1UEAxMqR2xvYmFsU2lnbiBQZXJzb25h bFNpZ24gMiBDQSAtIFNIQTI1NiAtIEczMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA 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