{"id":814585,"url":"http://patchwork.ozlabs.org/api/patches/814585/?format=json","web_url":"http://patchwork.ozlabs.org/project/linuxppc-dev/patch/1505621128-23877-3-git-send-email-sukadev@linux.vnet.ibm.com/","project":{"id":2,"url":"http://patchwork.ozlabs.org/api/projects/2/?format=json","name":"Linux PPC development","link_name":"linuxppc-dev","list_id":"linuxppc-dev.lists.ozlabs.org","list_email":"linuxppc-dev@lists.ozlabs.org","web_url":"https://github.com/linuxppc/wiki/wiki","scm_url":"https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git","webscm_url":"https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/","list_archive_url":"https://lore.kernel.org/linuxppc-dev/","list_archive_url_format":"https://lore.kernel.org/linuxppc-dev/{}/","commit_url_format":"https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/commit/?id={}"},"msgid":"<1505621128-23877-3-git-send-email-sukadev@linux.vnet.ibm.com>","list_archive_url":"https://lore.kernel.org/linuxppc-dev/1505621128-23877-3-git-send-email-sukadev@linux.vnet.ibm.com/","date":"2017-09-17T04:05:20","name":"[02/10] powerpc/vas: Validate window credits","commit_ref":null,"pull_url":null,"state":"superseded","archived":true,"hash":"c24ee6c7547a92973d4bb9dedcab1e22305198ad","submitter":{"id":984,"url":"http://patchwork.ozlabs.org/api/people/984/?format=json","name":"Sukadev Bhattiprolu","email":"sukadev@linux.vnet.ibm.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/linuxppc-dev/patch/1505621128-23877-3-git-send-email-sukadev@linux.vnet.ibm.com/mbox/","series":[{"id":3482,"url":"http://patchwork.ozlabs.org/api/series/3482/?format=json","web_url":"http://patchwork.ozlabs.org/project/linuxppc-dev/list/?series=3482","date":"2017-09-17T04:05:19","name":"powerpc/vas: cleanup and optimizations","version":1,"mbox":"http://patchwork.ozlabs.org/series/3482/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/814585/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/814585/checks/","tags":{},"related":[],"headers":{"Return-Path":"","X-Original-To":["patchwork-incoming@ozlabs.org","linuxppc-dev@lists.ozlabs.org"],"Delivered-To":["patchwork-incoming@ozlabs.org","linuxppc-dev@lists.ozlabs.org","linuxppc-dev@ozlabs.org"],"Received":["from lists.ozlabs.org (lists.ozlabs.org [103.22.144.68])\n\t(using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 3xvwdm6vkhz9s7h\n\tfor ;\n\tSun, 17 Sep 2017 14:10:04 +1000 (AEST)","from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3])\n\tby lists.ozlabs.org (Postfix) with ESMTP id 3xvwdm5XctzDsLk\n\tfor ;\n\tSun, 17 Sep 2017 14:10:04 +1000 (AEST)","from ozlabs.org (ozlabs.org [IPv6:2401:3900:2:1::2])\n\t(using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby lists.ozlabs.org (Postfix) with ESMTPS id 3xvwXn3S6LzDrn7\n\tfor ;\n\tSun, 17 Sep 2017 14:05:45 +1000 (AEST)","from ozlabs.org (ozlabs.org [IPv6:2401:3900:2:1::2])\n\tby bilbo.ozlabs.org (Postfix) with ESMTP id 3xvwXn17QWz8vmk\n\tfor ;\n\tSun, 17 Sep 2017 14:05:45 +1000 (AEST)","by ozlabs.org (Postfix)\n\tid 3xvwXm6sbjz9t2S; Sun, 17 Sep 2017 14:05:44 +1000 (AEST)","from mx0a-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com\n\t[148.163.158.5])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256\n\tbits)) (No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 3xvwXm2PYNz9t2M\n\tfor ; Sun, 17 Sep 2017 14:05:44 +1000 (AEST)","from pps.filterd (m0098416.ppops.net [127.0.0.1])\n\tby mx0b-001b2d01.pphosted.com (8.16.0.21/8.16.0.21) with SMTP id\n\tv8H44Pte097551\n\tfor ; Sun, 17 Sep 2017 00:05:42 -0400","from e37.co.us.ibm.com (e37.co.us.ibm.com [32.97.110.158])\n\tby mx0b-001b2d01.pphosted.com with ESMTP id 2d0wk9bad6-1\n\t(version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT)\n\tfor ; Sun, 17 Sep 2017 00:05:41 -0400","from localhost\n\tby e37.co.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use\n\tOnly! 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Violators will be prosecuted; \n\tSat, 16 Sep 2017 22:05:38 -0600","from b03ledav005.gho.boulder.ibm.com\n\t(b03ledav005.gho.boulder.ibm.com [9.17.130.236])\n\tby b03cxnp08025.gho.boulder.ibm.com (8.14.9/8.14.9/NCO v10.0) with\n\tESMTP id v8H45b742425120; Sat, 16 Sep 2017 21:05:37 -0700","from b03ledav005.gho.boulder.ibm.com (unknown [127.0.0.1])\n\tby IMSVA (Postfix) with ESMTP id BC250BE03B;\n\tSat, 16 Sep 2017 22:05:37 -0600 (MDT)","from suka-w540.usor.ibm.com (unknown [9.70.94.25])\n\tby b03ledav005.gho.boulder.ibm.com (Postfix) with ESMTP id 61ED8BE042;\n\tSat, 16 Sep 2017 22:05:37 -0600 (MDT)"],"Authentication-Results":"ozlabs.org;\n\tspf=none (mailfrom) smtp.mailfrom=linux.vnet.ibm.com\n\t(client-ip=148.163.158.5; helo=mx0a-001b2d01.pphosted.com;\n\tenvelope-from=sukadev@linux.vnet.ibm.com; receiver=)","From":"Sukadev Bhattiprolu ","To":"Michael Ellerman ","Subject":"[PATCH 02/10] powerpc/vas: Validate window credits","Date":"Sat, 16 Sep 2017 21:05:20 -0700","X-Mailer":"git-send-email 2.7.4","In-Reply-To":"<1505621128-23877-1-git-send-email-sukadev@linux.vnet.ibm.com>","References":"<1505621128-23877-1-git-send-email-sukadev@linux.vnet.ibm.com>","X-TM-AS-GCONF":"00","x-cbid":"17091704-0024-0000-0000-0000173479C3","X-IBM-SpamModules-Scores":"","X-IBM-SpamModules-Versions":"BY=3.00007754; HX=3.00000241; KW=3.00000007;\n\tPH=3.00000004; SC=3.00000229; SDB=6.00918138; UDB=6.00461174;\n\tIPR=6.00698363; \n\tBA=6.00005592; NDR=6.00000001; ZLA=6.00000005; ZF=6.00000009;\n\tZB=6.00000000; \n\tZP=6.00000000; ZH=6.00000000; ZU=6.00000002; MB=3.00017185;\n\tXFM=3.00000015; UTC=2017-09-17 04:05:39","X-IBM-AV-DETECTION":"SAVI=unused REMOTE=unused XFE=unused","x-cbparentid":"17091704-0025-0000-0000-00004CBF2480","Message-Id":"<1505621128-23877-3-git-send-email-sukadev@linux.vnet.ibm.com>","X-Proofpoint-Virus-Version":"vendor=fsecure engine=2.50.10432:, ,\n\tdefinitions=2017-09-17_03:, , signatures=0","X-Proofpoint-Spam-Details":"rule=outbound_notspam policy=outbound score=0\n\tspamscore=0 suspectscore=0\n\tmalwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam\n\tadjust=0 reason=mlx scancount=1 engine=8.0.1-1707230000\n\tdefinitions=main-1709170058","X-BeenThere":"linuxppc-dev@lists.ozlabs.org","X-Mailman-Version":"2.1.24","Precedence":"list","List-Id":"Linux on PowerPC Developers Mail List\n\t","List-Unsubscribe":",\n\t","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n\t","Cc":"linuxppc-dev@ozlabs.org, mikey@neuling.org, linux-kernel@vger.kernel.org","Errors-To":"linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org","Sender":"\"Linuxppc-dev\"\n\t"},"content":"NX-842, the only user of VAS, sets the window credits to default values\nbut VAS should check the credits against the possible max values.\n\nThe VAS_WCREDS_MIN is not needed and can be dropped.\n\nSigned-off-by: Sukadev Bhattiprolu \n---\n arch/powerpc/platforms/powernv/vas-window.c | 6 ++++++\n arch/powerpc/platforms/powernv/vas.h | 4 ++--\n 2 files changed, 8 insertions(+), 2 deletions(-)","diff":"diff --git a/arch/powerpc/platforms/powernv/vas-window.c b/arch/powerpc/platforms/powernv/vas-window.c\nindex cec7ab7..a2fe120 100644\n--- a/arch/powerpc/platforms/powernv/vas-window.c\n+++ b/arch/powerpc/platforms/powernv/vas-window.c\n@@ -738,6 +738,9 @@ static bool rx_win_args_valid(enum vas_cop_type cop,\n \tif (attr->rx_fifo_size > VAS_RX_FIFO_SIZE_MAX)\n \t\treturn false;\n \n+\tif (attr->wcreds_max > VAS_RX_WCREDS_MAX)\n+\t\treturn false;\n+\n \tif (attr->nx_win) {\n \t\t/* cannot be fault or user window if it is nx */\n \t\tif (attr->fault_win || attr->user_win)\n@@ -927,6 +930,9 @@ static bool tx_win_args_valid(enum vas_cop_type cop,\n \tif (cop > VAS_COP_TYPE_MAX)\n \t\treturn false;\n \n+\tif (attr->wcreds_max > VAS_TX_WCREDS_MAX)\n+\t\treturn false;\n+\n \tif (attr->user_win &&\n \t\t\t(cop != VAS_COP_TYPE_FTW || attr->rsvd_txbuf_count))\n \t\treturn false;\ndiff --git a/arch/powerpc/platforms/powernv/vas.h b/arch/powerpc/platforms/powernv/vas.h\nindex 38dee5d..fea0de4 100644\n--- a/arch/powerpc/platforms/powernv/vas.h\n+++ b/arch/powerpc/platforms/powernv/vas.h\n@@ -106,8 +106,8 @@\n *\n * TODO: Needs tuning for per-process credits\n */\n-#define VAS_WCREDS_MIN\t\t\t16\n-#define VAS_WCREDS_MAX\t\t\t((64 << 10) - 1)\n+#define VAS_RX_WCREDS_MAX\t\t((64 << 10) - 1)\n+#define VAS_TX_WCREDS_MAX\t\t((4 << 10) - 1)\n #define VAS_WCREDS_DEFAULT\t\t(1 << 10)\n \n /*\n","prefixes":["02/10"]}