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=-3.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no 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 0EF1BC55178 for ; Thu, 5 Nov 2020 17:27:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8E72A20867 for ; Thu, 5 Nov 2020 17:27:15 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=broadcom.com header.i=@broadcom.com header.b="O87KSiId" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729783AbgKER1P (ORCPT ); Thu, 5 Nov 2020 12:27:15 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44372 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726996AbgKER1O (ORCPT ); Thu, 5 Nov 2020 12:27:14 -0500 Received: from mail-oo1-xc36.google.com (mail-oo1-xc36.google.com [IPv6:2607:f8b0:4864:20::c36]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AD235C0613CF for ; Thu, 5 Nov 2020 09:27:14 -0800 (PST) Received: by mail-oo1-xc36.google.com with SMTP id l26so611689oop.9 for ; Thu, 05 Nov 2020 09:27:14 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=broadcom.com; s=google; h=from:references:in-reply-to:mime-version:thread-index:date :message-id:subject:to:cc; bh=KFykQCmA7yjs9gP+HdYfCg5QyOjUCltKiSkXxfLGueg=; b=O87KSiIdUwkulUrn/JtTgtyeZ9/IeWZ3clf5Nvx1DrVsw1TLhLdHAImcUZFMo2iRkb UfSlyvgHeSs/Sa8TeO4rnayYz3kNfXYq6J1YUu9A6wUMGDnbb/MyZBisAHXTPMwB0jqD 9PFIXoQzkuZag+uhvhYLp2NzxRHk9P93/NeYc= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:references:in-reply-to:mime-version :thread-index:date:message-id:subject:to:cc; bh=KFykQCmA7yjs9gP+HdYfCg5QyOjUCltKiSkXxfLGueg=; b=AF+COEvPENrmhMHaBKJ1/kfdblB+enE2EDNaaSAf0EJEnEZrfgUXIxR3cA7dWqqb7H vbG954DJn4UjpQPO3TvLLJ72Pthyw198tmFNVlib+LDt2wFLjGXeaXwxKl7XSnI+Lla+ /NC6EeMB8Jzyw42FF4IdzmQYRN2a1YYc0ckRG8ykBypO7K5a8A0H65rILLZOENeuw7Fj lL57SypTCMAOhCvugc0sccDVOvP0TqwoNJHPz1wVfcMwCaxvLvDHdRpYP4JMtP8GqxT4 bJdYs6UYh4LSl1J72OImnXfXgTPQarblo6xVfnJZbE5dJbMa7X1iBMb2PkOut3o0v/gC J5bg== X-Gm-Message-State: AOAM5322yGhULYUNx2eBaCYuazfqfH3SzpAAagrwqAPhqGjVkB9Ui/yQ eYg4VIh558kmZsaW1UBiaETIX5350XjALDjYljI0G0llg8gn3w== X-Google-Smtp-Source: ABdhPJz0ED94DdHosnmkJ/InC2D0+qpMlsJDut4alacU+ZJVAckCGRQEEM5dhXs9kDKxja0xTaOp074Tvd/Ri6GJq8M= X-Received: by 2002:a4a:8e86:: with SMTP id p6mr2559734ook.20.1604597233869; Thu, 05 Nov 2020 09:27:13 -0800 (PST) From: Muneendra Kumar M References: <1604556596-27228-1-git-send-email-muneendra.kumar@broadcom.com> <1604556596-27228-4-git-send-email-muneendra.kumar@broadcom.com> In-Reply-To: MIME-Version: 1.0 X-Mailer: Microsoft Outlook 15.0 Thread-Index: AQJbIqKuxKDp76OdHE9svWN8tlfO/QIOdQWIAbeXNKSokq3IQA== Date: Thu, 5 Nov 2020 22:57:11 +0530 Message-ID: <08d150e63f2b79cd0199fb49355ce601@mail.gmail.com> Subject: RE: [PATCH v6 3/4] scsi_transport_fc: Added a new rport state FC_PORTSTATE_MARGINAL To: Mike Christie , linux-scsi@vger.kernel.org, hare@suse.de Cc: jsmart2021@gmail.com, emilne@redhat.com, mkumar@redhat.com Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha-256; boundary="00000000000027420205b35f6820" Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org --00000000000027420205b35f6820 Content-Type: text/plain; charset="UTF-8" Hi Mike, Thanks for the input. Below are my replies. >Hey sorry for the late reply. I was trying to test some things out but am >not sure if all drivers work the same. >For the code above, what will happen if we have passed that check in the >driver, then the driver does the report del and add sequence? Let's say >it's initially calling the abort callout, and we passed that check, we then >do the >del/add seqeuence, what will happen next? Do the fc drivers return >success or failure for the abort call. What happens for the other callouts >too? >If failure, then the eh escalates and when we call the next callout, and we >hit the check above and will clear it, so we are ok. If success then we would not get a chance to clear it right? [Muneendra]Agreed. So what about clearing the flags in fc_remote_port_del. I think this should address all the concerns? > If this is the case, then I think you need to instead go the route where > you add the eh cmd completion/decide_disposition callout. You would call > it in scmd_eh_abort_handler, scsi_eh_bus_device_reset, etc when we are > deciding if we want to retry/fail the command. [Muneendra]Sorry I didn't get what you are saying could you please elaborate on the same. In this approach you do not need the eh_timed_out changes, since we only seem to care about the port state after the eh callout has completed. [Muneendra]what about setting the SCMD_NORETRIES_ABORT bit? Regards, Muneendra. --00000000000027420205b35f6820 Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIIQTQYJKoZIhvcNAQcCoIIQPjCCEDoCAQExDzANBglghkgBZQMEAgEFADALBgkqhkiG9w0BBwGg gg2iMIIE6DCCA9CgAwIBAgIOSBtqCRO9gCTKXSLwFPMwDQYJKoZIhvcNAQELBQAwTDEgMB4GA1UE CxMXR2xvYmFsU2lnbiBSb290IENBIC0gUjMxEzARBgNVBAoTCkdsb2JhbFNpZ24xEzARBgNVBAMT Ckdsb2JhbFNpZ24wHhcNMTYwNjE1MDAwMDAwWhcNMjQwNjE1MDAwMDAwWjBdMQswCQYDVQQGEwJC RTEZMBcGA1UEChMQR2xvYmFsU2lnbiBudi1zYTEzMDEGA1UEAxMqR2xvYmFsU2lnbiBQZXJzb25h bFNpZ24gMiBDQSAtIFNIQTI1NiAtIEczMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA tpZok2X9LAHsYqMNVL+Ly6RDkaKar7GD8rVtb9nw6tzPFnvXGeOEA4X5xh9wjx9sScVpGR5wkTg1 fgJIXTlrGESmaqXIdPRd9YQ+Yx9xRIIIPu3Jp/bpbiZBKYDJSbr/2Xago7sb9nnfSyjTSnucUcIP ZVChn6hKneVGBI2DT9yyyD3PmCEJmEzA8Y96qT83JmVH2GaPSSbCw0C+Zj1s/zqtKUbwE5zh8uuZ p4vC019QbaIOb8cGlzgvTqGORwK0gwDYpOO6QQdg5d03WvIHwTunnJdoLrfvqUg2vOlpqJmqR+nH 9lHS+bEstsVJtZieU1Pa+3LzfA/4cT7XA/pnwwIDAQABo4IBtTCCAbEwDgYDVR0PAQH/BAQDAgEG MGoGA1UdJQRjMGEGCCsGAQUFBwMCBggrBgEFBQcDBAYIKwYBBQUHAwkGCisGAQQBgjcUAgIGCisG AQQBgjcKAwQGCSsGAQQBgjcVBgYKKwYBBAGCNwoDDAYIKwYBBQUHAwcGCCsGAQUFBwMRMBIGA1Ud EwEB/wQIMAYBAf8CAQAwHQYDVR0OBBYEFGlygmIxZ5VEhXeRgMQENkmdewthMB8GA1UdIwQYMBaA FI/wS3+oLkUkrk1Q+mOai97i3Ru8MD4GCCsGAQUFBwEBBDIwMDAuBggrBgEFBQcwAYYiaHR0cDov L29jc3AyLmdsb2JhbHNpZ24uY29tL3Jvb3RyMzA2BgNVHR8ELzAtMCugKaAnhiVodHRwOi8vY3Js Lmdsb2JhbHNpZ24uY29tL3Jvb3QtcjMuY3JsMGcGA1UdIARgMF4wCwYJKwYBBAGgMgEoMAwGCisG AQQBoDIBKAowQQYJKwYBBAGgMgFfMDQwMgYIKwYBBQUHAgEWJmh0dHBzOi8vd3d3Lmdsb2JhbHNp Z24uY29tL3JlcG9zaXRvcnkvMA0GCSqGSIb3DQEBCwUAA4IBAQConc0yzHxn4gtQ16VccKNm4iXv 6rS2UzBuhxI3XDPiwihW45O9RZXzWNgVcUzz5IKJFL7+pcxHvesGVII+5r++9eqI9XnEKCILjHr2 DgvjKq5Jmg6bwifybLYbVUoBthnhaFB0WLwSRRhPrt5eGxMw51UmNICi/hSKBKsHhGFSEaJQALZy 4HL0EWduE6ILYAjX6BSXRDtHFeUPddb46f5Hf5rzITGLsn9BIpoOVrgS878O4JnfUWQi29yBfn75 HajifFvPC+uqn+rcVnvrpLgsLOYG/64kWX/FRH8+mhVe+mcSX3xsUpcxK9q9vLTVtroU/yJUmEC4 OcH5dQsbHBqjMIIDXzCCAkegAwIBAgILBAAAAAABIVhTCKIwDQYJKoZIhvcNAQELBQAwTDEgMB4G A1UECxMXR2xvYmFsU2lnbiBSb290IENBIC0gUjMxEzARBgNVBAoTCkdsb2JhbFNpZ24xEzARBgNV BAMTCkdsb2JhbFNpZ24wHhcNMDkwMzE4MTAwMDAwWhcNMjkwMzE4MTAwMDAwWjBMMSAwHgYDVQQL ExdHbG9iYWxTaWduIFJvb3QgQ0EgLSBSMzETMBEGA1UEChMKR2xvYmFsU2lnbjETMBEGA1UEAxMK R2xvYmFsU2lnbjCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAMwldpB5BngiFvXAg7aE yiie/QV2EcWtiHL8RgJDx7KKnQRfJMsuS+FggkbhUqsMgUdwbN1k0ev1LKMPgj0MK66X17YUhhB5 uzsTgHeMCOFJ0mpiLx9e+pZo34knlTifBtc+ycsmWQ1z3rDI6SYOgxXG71uL0gRgykmmKPZpO/bL yCiR5Z2KYVc3rHQU3HTgOu5yLy6c+9C7v/U9AOEGM+iCK65TpjoWc4zdQQ4gOsC0p6Hpsk+QLjJg 6VfLuQSSaGjlOCZgdbKfd/+RFO+uIEn8rUAVSNECMWEZXriX7613t2Saer9fwRPvm2L7DWzgVGkW qQPabumDk3F2xmmFghcCAwEAAaNCMEAwDgYDVR0PAQH/BAQDAgEGMA8GA1UdEwEB/wQFMAMBAf8w HQYDVR0OBBYEFI/wS3+oLkUkrk1Q+mOai97i3Ru8MA0GCSqGSIb3DQEBCwUAA4IBAQBLQNvAUKr+ yAzv95ZURUm7lgAJQayzE4aGKAczymvmdLm6AC2upArT9fHxD4q/c2dKg8dEe3jgr25sbwMpjjM5 RcOO5LlXbKr8EpbsU8Yt5CRsuZRj+9xTaGdWPoO4zzUhw8lo/s7awlOqzJCK6fBdRoyV3XpYKBov Hd7NADdBj+1EbddTKJd+82cEHhXXipa0095MJ6RMG3NzdvQXmcIfeg7jLQitChws/zyrVQ4PkX42 68NXSb7hLi18YIvDQVETI53O9zJrlAGomecsMx86OyXShkDOOyyGeMlhLxS67ttVb9+E7gUJTb0o 2HLO02JQZR7rkpeDMdmztcpHWD9fMIIFTzCCBDegAwIBAgIMX/krgFDQUQNyOf+1MA0GCSqGSIb3 DQEBCwUAMF0xCzAJBgNVBAYTAkJFMRkwFwYDVQQKExBHbG9iYWxTaWduIG52LXNhMTMwMQYDVQQD EypHbG9iYWxTaWduIFBlcnNvbmFsU2lnbiAyIENBIC0gU0hBMjU2IC0gRzMwHhcNMjAwOTA0MDgz NTI5WhcNMjIwOTA1MDgzNTI5WjCBljELMAkGA1UEBhMCSU4xEjAQBgNVBAgTCUthcm5hdGFrYTES MBAGA1UEBxMJQmFuZ2Fsb3JlMRYwFAYDVQQKEw1Ccm9hZGNvbSBJbmMuMRowGAYDVQQDExFNdW5l ZW5kcmEgS3VtYXIgTTErMCkGCSqGSIb3DQEJARYcbXVuZWVuZHJhLmt1bWFyQGJyb2FkY29tLmNv bTCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAMoadg8/B0JvnQVWQZyfiiEMmDhh0bSq BIThkSCjIdy7yOV9fBOs6MdrPZgCDeX5rJvOw6PJiWjeQQ9RkTJH6WccvxwXugoyspkG/RfFdUKk t0/bk1Ml9aUobcee2+cC79gyzwpHUjzEpcsx49FskGIxI+n9wybrDhpurtj8mmc1C1sVzKNoIEwC /eHrCsDnag9JEGotxVVv0KcLXv7N0CXs03bP8uvocms3+gO1K8dasJkc7noMt/i0/xcZnaABWkgV J/4V6ms/nIUi+/4vPYjckYUbRzkXm1/X0IyUfpp5cgdrFn9jBIk69fQGAUEhnVvwcXnHWotYxZFd Xew5Fz0CAwEAAaOCAdMwggHPMA4GA1UdDwEB/wQEAwIFoDCBngYIKwYBBQUHAQEEgZEwgY4wTQYI KwYBBQUHMAKGQWh0dHA6Ly9zZWN1cmUuZ2xvYmFsc2lnbi5jb20vY2FjZXJ0L2dzcGVyc29uYWxz aWduMnNoYTJnM29jc3AuY3J0MD0GCCsGAQUFBzABhjFodHRwOi8vb2NzcDIuZ2xvYmFsc2lnbi5j b20vZ3NwZXJzb25hbHNpZ24yc2hhMmczME0GA1UdIARGMEQwQgYKKwYBBAGgMgEoCjA0MDIGCCsG AQUFBwIBFiZodHRwczovL3d3dy5nbG9iYWxzaWduLmNvbS9yZXBvc2l0b3J5LzAJBgNVHRMEAjAA MEQGA1UdHwQ9MDswOaA3oDWGM2h0dHA6Ly9jcmwuZ2xvYmFsc2lnbi5jb20vZ3NwZXJzb25hbHNp Z24yc2hhMmczLmNybDAnBgNVHREEIDAegRxtdW5lZW5kcmEua3VtYXJAYnJvYWRjb20uY29tMBMG A1UdJQQMMAoGCCsGAQUFBwMEMB8GA1UdIwQYMBaAFGlygmIxZ5VEhXeRgMQENkmdewthMB0GA1Ud DgQWBBR6On9cEmlB2VsuST951zNMSKtFBzANBgkqhkiG9w0BAQsFAAOCAQEAOGDBLQ17Ge8BVULh hsKhgh5eDx0mNmRRdhvTJnxOTRX5QsOKvsJGOUbyrKjD3BTTcGmIUti9HmbqDe/3gRTbhu8LA508 LbMkW5lUoTb8ycBNOKLYhNE8UEOY8jRTUtMEhzT6NJDEE+1hb3kSGfArrrF3Z8pRYiUUhcpC5GKL 9KsxA+DECRfSGfXJJQSq6nEZUGKhz+dz5CV1s8UIZLe9HEEfyJO4eRP+Fw9X16cthAbY0kpVnAvT /j45FAauY/h87uphdvSb5wC9v5w4VO0JKs0yNUjyWXg/RG+6JCvcViLFLAlRCLrcRcVaQwWZQ3YB EpmWnHflnrBcah5Ozy137DGCAm8wggJrAgEBMG0wXTELMAkGA1UEBhMCQkUxGTAXBgNVBAoTEEds b2JhbFNpZ24gbnYtc2ExMzAxBgNVBAMTKkdsb2JhbFNpZ24gUGVyc29uYWxTaWduIDIgQ0EgLSBT SEEyNTYgLSBHMwIMX/krgFDQUQNyOf+1MA0GCWCGSAFlAwQCAQUAoIHUMC8GCSqGSIb3DQEJBDEi BCDc9s1bFTa2b8ahgunO31gGKLasBRG7ZCOH1wGW6Bm8/DAYBgkqhkiG9w0BCQMxCwYJKoZIhvcN AQcBMBwGCSqGSIb3DQEJBTEPFw0yMDExMDUxNzI3MTRaMGkGCSqGSIb3DQEJDzFcMFowCwYJYIZI AWUDBAEqMAsGCWCGSAFlAwQBFjALBglghkgBZQMEAQIwCgYIKoZIhvcNAwcwCwYJKoZIhvcNAQEK MAsGCSqGSIb3DQEBBzALBglghkgBZQMEAgEwDQYJKoZIhvcNAQEBBQAEggEAFjZ32Z2uViNjAgmN LG6mUaIbZWbEBMu8CdD2o32yF82p2E9emCQJHL2E5IaaSYiAmFTCh2nIe81ohUR/yiPnJVrWT9gX glBGYCQ0TRdFDDlyztkaWcM/7hntiDOktUAdlMHffFId34dXbUeZ5sd8dohm7DLBXl1dtbZpjnaf Ax2MENFwip4yRVafWW+wqOwjSFqK0uozTuqVyCq3w+JgtCbXfvjFJ6ScwGDJFX/DQUes/fds5l8E pkukNc2xE3j/+YfMujdIvtBvPXMQGILQ9RDEDl0vFYN9BCu28tMJCFER31bBgV0Wmb2r7riF+FWI hsjF5FS9m19lFsJEE5zVIg== --00000000000027420205b35f6820--