From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 93EBBA034F; Tue, 7 Dec 2021 07:53:07 +0100 (CET) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 13BDC42776; Tue, 7 Dec 2021 07:52:16 +0100 (CET) Received: from mx0b-0016f401.pphosted.com (mx0a-0016f401.pphosted.com [67.231.148.174]) by mails.dpdk.org (Postfix) with ESMTP id EC46742758 for ; Tue, 7 Dec 2021 07:52:11 +0100 (CET) Received: from pps.filterd (m0045849.ppops.net [127.0.0.1]) by mx0a-0016f401.pphosted.com (8.16.1.2/8.16.1.2) with ESMTP id 1B76pMGB018337 for ; Mon, 6 Dec 2021 22:52:11 -0800 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=marvell.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding : content-type; s=pfpt0220; bh=Goj5xAoeseeAM9xu2jYxBMSoxAfGgekZIQ9y6kmtU7A=; b=YIJBKk6AFjKHYDHEq2fclKkSqIShCEM4gLh4ZiitNcDD4kM+wVGDXalGP394fB1guldX vP3O96TPrvQGnXG9hPUM6TGfU6+vLG1/2YNOZVr36hi5BDnKPSJiPZED9PLKCHiUmcS8 gBkq1g7j+EVMndzOevJ6lTLY4F1BEPulN+XzRkaU3lrCw34HAzXiBJL+3AXs/p+/rNR1 UadqeqspEz/4rFLPNhmdBSjLQ46yYaPHc4v99EMBtpcMBJa9ydya430gW1Tfh7Bqm69c XG4XaJf6Co+FnifhVTNrD24w+De6bJgu7LfIleguRlWxjAlOO476lafraGXNLLIDCb+a xA== Received: from dc5-exch02.marvell.com ([199.233.59.182]) by mx0a-0016f401.pphosted.com (PPS) with ESMTPS id 3ct2q90057-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT) for ; Mon, 06 Dec 2021 22:52:11 -0800 Received: from DC5-EXCH02.marvell.com (10.69.176.39) by DC5-EXCH02.marvell.com (10.69.176.39) with Microsoft SMTP Server (TLS) id 15.0.1497.18; Mon, 6 Dec 2021 22:52:09 -0800 Received: from maili.marvell.com (10.69.176.80) by DC5-EXCH02.marvell.com (10.69.176.39) with Microsoft SMTP Server id 15.0.1497.18 via Frontend Transport; Mon, 6 Dec 2021 22:52:09 -0800 Received: from HY-LT1002.marvell.com (HY-LT1002.marvell.com [10.28.176.218]) by maili.marvell.com (Postfix) with ESMTP id 372993F7071; Mon, 6 Dec 2021 22:52:06 -0800 (PST) From: Anoob Joseph To: Akhil Goyal , Jerin Jacob CC: Anoob Joseph , Archana Muniganti , Tejasree Kondoj , Subject: [PATCH 18/25] crypto/cnxk: fix inflight cnt calculation Date: Tue, 7 Dec 2021 12:20:51 +0530 Message-ID: <1638859858-734-19-git-send-email-anoobj@marvell.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1638859858-734-1-git-send-email-anoobj@marvell.com> References: <1638859858-734-1-git-send-email-anoobj@marvell.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Proofpoint-GUID: 0yiMPxNwigSUdLpJgGvmfhLacdp7zmcI X-Proofpoint-ORIG-GUID: 0yiMPxNwigSUdLpJgGvmfhLacdp7zmcI X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.790,Hydra:6.0.425,FMLib:17.11.62.513 definitions=2021-12-07_02,2021-12-06_02,2021-12-02_01 X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Inflight count calculation is updated to cover wrap around cases where head can become smaller than tail. Reported-by: Kiran Kumar K Signed-off-by: Anoob Joseph --- drivers/crypto/cnxk/cnxk_cryptodev_ops.h | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/crypto/cnxk/cnxk_cryptodev_ops.h b/drivers/crypto/cnxk/cnxk_cryptodev_ops.h index ca363bb..0336ae1 100644 --- a/drivers/crypto/cnxk/cnxk_cryptodev_ops.h +++ b/drivers/crypto/cnxk/cnxk_cryptodev_ops.h @@ -156,7 +156,11 @@ pending_queue_retreat(uint64_t *index, const uint64_t mask, uint64_t nb_entry) static __rte_always_inline uint64_t pending_queue_infl_cnt(uint64_t head, uint64_t tail, const uint64_t mask) { - return (head - tail) & mask; + /* + * Mask is nb_desc - 1. Add nb_desc to head and mask to account for + * cases when tail > head, which happens during wrap around. + */ + return ((head + mask + 1) - tail) & mask; } static __rte_always_inline uint64_t -- 2.7.4