From patchwork Fri Dec 3 16:36:26 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Rahul Bhansali X-Patchwork-Id: 104856 X-Patchwork-Delegate: jerinj@marvell.com Return-Path: X-Original-To: patchwork@inbox.dpdk.org Delivered-To: patchwork@inbox.dpdk.org Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 327C2A0C41; Fri, 3 Dec 2021 17:36:42 +0100 (CET) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id BAE6F4067B; Fri, 3 Dec 2021 17:36:41 +0100 (CET) Received: from mx0b-0016f401.pphosted.com (mx0a-0016f401.pphosted.com [67.231.148.174]) by mails.dpdk.org (Postfix) with ESMTP id 4835740041 for ; Fri, 3 Dec 2021 17:36:40 +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 1B38QB75014937; Fri, 3 Dec 2021 08:36:34 -0800 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=marvell.com; h=from : to : cc : subject : date : message-id : mime-version : content-transfer-encoding : content-type; s=pfpt0220; bh=anv6kiX5WwOFNn93+WCMkKvFnZYV2X/EgAv+wCGWRkA=; b=SMQiosX+DefKhpPRX/WFl7/B51MyZ2ol+oHdVO0B+fMhby35DLX421aV0uDL+C5Z3TS7 8W2OwgARwRzrYA10QRlMnmLt0F4r6P29W1+g2W+Rq9uBwAfsO3jHhnQuVzWTsykaUdWW 6x5+AuoexHMVQfDcWYwr4OaWmpo3KHYpPMHk+J1oIQySWJrhqbO4RjdtFqNFs7yVqml0 Z2GyKHQBhPfbog8iMlQkJuN6w91tNJrQsx9xrYP9uH6xPcDXS0eAiwGoZpGk8LYTvOvS 0cc8Y6BHGRTTg05Wu8Sq50PgHXa2PQkmLRJGYtw2t9tyj+9xLSyrLYeos94YcnsizrPp nw== Received: from dc5-exch02.marvell.com ([199.233.59.182]) by mx0a-0016f401.pphosted.com (PPS) with ESMTPS id 3cqfqq9q4w-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT); Fri, 03 Dec 2021 08:36:34 -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; Fri, 3 Dec 2021 08:36:32 -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; Fri, 3 Dec 2021 08:36:32 -0800 Received: from localhost.localdomain (unknown [10.28.48.107]) by maili.marvell.com (Postfix) with ESMTP id 5831A3F703F; Fri, 3 Dec 2021 08:36:30 -0800 (PST) From: Rahul Bhansali To: , Nithin Dabilpuram , Kiran Kumar K , Sunil Kumar Kori , Satha Rao , Ray Kinsella CC: , Rahul Bhansali Subject: [PATCH 1/2] common/cnxk: get head-tail of Rx and Tx queues Date: Fri, 3 Dec 2021 22:06:26 +0530 Message-ID: <20211203163627.3254236-1-rbhansali@marvell.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-Proofpoint-GUID: uY0sgiNIBo7IRMSeFzUSoiktuu6GcAbJ X-Proofpoint-ORIG-GUID: uY0sgiNIBo7IRMSeFzUSoiktuu6GcAbJ 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=2021-12-03_07,2021-12-02_01,2021-12-02_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 Adds roc APIs roc_nix_cq_head_tail_get, roc_nix_sq_head_tail_get to get head-tail of receive and transmit queue respectively. Signed-off-by: Rahul Bhansali --- drivers/common/cnxk/roc_nix.h | 4 +++ drivers/common/cnxk/roc_nix_queue.c | 53 +++++++++++++++++++++++++++++ drivers/common/cnxk/version.map | 2 ++ 3 files changed, 59 insertions(+) diff --git a/drivers/common/cnxk/roc_nix.h b/drivers/common/cnxk/roc_nix.h index 69a5e8e7b4..d79abfef9f 100644 --- a/drivers/common/cnxk/roc_nix.h +++ b/drivers/common/cnxk/roc_nix.h @@ -795,8 +795,12 @@ int __roc_api roc_nix_rq_ena_dis(struct roc_nix_rq *rq, bool enable); int __roc_api roc_nix_rq_fini(struct roc_nix_rq *rq); int __roc_api roc_nix_cq_init(struct roc_nix *roc_nix, struct roc_nix_cq *cq); int __roc_api roc_nix_cq_fini(struct roc_nix_cq *cq); +void __roc_api roc_nix_cq_head_tail_get(struct roc_nix *roc_nix, uint16_t qid, + uint32_t *head, uint32_t *tail); int __roc_api roc_nix_sq_init(struct roc_nix *roc_nix, struct roc_nix_sq *sq); int __roc_api roc_nix_sq_fini(struct roc_nix_sq *sq); +void __roc_api roc_nix_sq_head_tail_get(struct roc_nix *roc_nix, uint16_t qid, + uint32_t *head, uint32_t *tail); /* PTP */ int __roc_api roc_nix_ptp_rx_ena_dis(struct roc_nix *roc_nix, int enable); diff --git a/drivers/common/cnxk/roc_nix_queue.c b/drivers/common/cnxk/roc_nix_queue.c index c8c8401d81..9fc26da5c6 100644 --- a/drivers/common/cnxk/roc_nix_queue.c +++ b/drivers/common/cnxk/roc_nix_queue.c @@ -959,3 +959,56 @@ roc_nix_sq_fini(struct roc_nix_sq *sq) return rc; } + +void +roc_nix_cq_head_tail_get(struct roc_nix *roc_nix, uint16_t qid, uint32_t *head, + uint32_t *tail) +{ + struct nix *nix = roc_nix_to_nix_priv(roc_nix); + uint64_t reg, val; + int64_t *addr; + + if (head == NULL || tail == NULL) + return; + + reg = (((uint64_t)qid) << 32); + addr = (int64_t *)(nix->base + NIX_LF_CQ_OP_STATUS); + val = roc_atomic64_add_nosync(reg, addr); + if (val & + (BIT_ULL(NIX_CQ_OP_STAT_OP_ERR) | BIT_ULL(NIX_CQ_OP_STAT_CQ_ERR))) + val = 0; + + *tail = (uint32_t)(val & 0xFFFFF); + *head = (uint32_t)((val >> 20) & 0xFFFFF); +} + +void +roc_nix_sq_head_tail_get(struct roc_nix *roc_nix, uint16_t qid, uint32_t *head, + uint32_t *tail) +{ + struct nix *nix = roc_nix_to_nix_priv(roc_nix); + struct roc_nix_sq *sq = nix->sqs[qid]; + uint16_t sqes_per_sqb, sqb_cnt; + uint64_t reg, val; + int64_t *addr; + + if (head == NULL || tail == NULL) + return; + + reg = (((uint64_t)qid) << 32); + addr = (int64_t *)(nix->base + NIX_LF_SQ_OP_STATUS); + val = roc_atomic64_add_nosync(reg, addr); + if (val & BIT_ULL(NIX_CQ_OP_STAT_OP_ERR)) { + val = 0; + return; + } + + *tail = (uint32_t)((val >> 28) & 0x3F); + *head = (uint32_t)((val >> 20) & 0x3F); + sqb_cnt = (uint16_t)(val & 0xFFFF); + + sqes_per_sqb = 1 << sq->sqes_per_sqb_log2; + + /* Update tail index as per used sqb count */ + *tail += (sqes_per_sqb * (sqb_cnt - 1)); +} diff --git a/drivers/common/cnxk/version.map b/drivers/common/cnxk/version.map index 07c6720f0c..a9dba47e0e 100644 --- a/drivers/common/cnxk/version.map +++ b/drivers/common/cnxk/version.map @@ -107,6 +107,7 @@ INTERNAL { roc_nix_bpf_timeunit_get; roc_nix_cq_dump; roc_nix_cq_fini; + roc_nix_cq_head_tail_get; roc_nix_cq_init; roc_nix_cqe_dump; roc_nix_dev_fini; @@ -222,6 +223,7 @@ INTERNAL { roc_nix_rx_queue_intr_enable; roc_nix_sq_dump; roc_nix_sq_fini; + roc_nix_sq_head_tail_get; roc_nix_sq_init; roc_nix_stats_get; roc_nix_stats_queue_get;