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 A9036A0C54; Fri, 3 Sep 2021 12:51:32 +0200 (CEST) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id D892541160; Fri, 3 Sep 2021 12:50:36 +0200 (CEST) Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by mails.dpdk.org (Postfix) with ESMTP id 507C94115C for ; Fri, 3 Sep 2021 12:50:35 +0200 (CEST) X-IronPort-AV: E=McAfee;i="6200,9189,10095"; a="216247405" X-IronPort-AV: E=Sophos;i="5.85,265,1624345200"; d="scan'208";a="216247405" Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 Sep 2021 03:50:35 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.85,265,1624345200"; d="scan'208";a="521643641" Received: from silpixa00401122.ir.intel.com ([10.55.128.10]) by fmsmga004.fm.intel.com with ESMTP; 03 Sep 2021 03:50:33 -0700 From: Kevin Laatz To: dev@dpdk.org Cc: bruce.richardson@intel.com, fengchengwen@huawei.com, jerinj@marvell.com, conor.walsh@intel.com, Kevin Laatz Date: Fri, 3 Sep 2021 10:49:58 +0000 Message-Id: <20210903105001.1179328-14-kevin.laatz@intel.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210903105001.1179328-1-kevin.laatz@intel.com> References: <20210827172048.558704-1-kevin.laatz@intel.com> <20210903105001.1179328-1-kevin.laatz@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: [dpdk-dev] [PATCH v2 13/16] dma/idxd: add vchan idle function 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 Sender: "dev" When testing dmadev drivers, it is useful to have the HW device in a known state. This patch adds the implementation of the function which will wait for the device to be idle (all jobs completed) before proceeding. Signed-off-by: Kevin Laatz --- drivers/dma/idxd/idxd_bus.c | 1 + drivers/dma/idxd/idxd_common.c | 10 ++++++++++ drivers/dma/idxd/idxd_internal.h | 1 + drivers/dma/idxd/idxd_pci.c | 1 + 4 files changed, 13 insertions(+) diff --git a/drivers/dma/idxd/idxd_bus.c b/drivers/dma/idxd/idxd_bus.c index 9482dab9be..4788bbf6d7 100644 --- a/drivers/dma/idxd/idxd_bus.c +++ b/drivers/dma/idxd/idxd_bus.c @@ -100,6 +100,7 @@ static const struct rte_dmadev_ops idxd_vdev_ops = { .dev_info_get = idxd_info_get, .stats_get = idxd_stats_get, .stats_reset = idxd_stats_reset, + .vchan_idle = idxd_vchan_idle, }; static void * diff --git a/drivers/dma/idxd/idxd_common.c b/drivers/dma/idxd/idxd_common.c index 7c72396dc8..ab43875409 100644 --- a/drivers/dma/idxd/idxd_common.c +++ b/drivers/dma/idxd/idxd_common.c @@ -165,6 +165,16 @@ get_comp_status(struct idxd_completion *c) } } +int +idxd_vchan_idle(const struct rte_dmadev *dev, uint16_t vchan __rte_unused) +{ + struct idxd_dmadev *idxd = dev->dev_private; + uint16_t last_batch_write = idxd->batch_idx_write == 0 ? idxd->max_batches : + idxd->batch_idx_write - 1; + + return (idxd->batch_comp_ring[last_batch_write].status != 0); +} + static __rte_always_inline int batch_ok(struct idxd_dmadev *idxd, uint8_t max_ops, enum rte_dma_status_code *status) { diff --git a/drivers/dma/idxd/idxd_internal.h b/drivers/dma/idxd/idxd_internal.h index 5079b4207d..a865ae1954 100644 --- a/drivers/dma/idxd/idxd_internal.h +++ b/drivers/dma/idxd/idxd_internal.h @@ -98,5 +98,6 @@ uint16_t idxd_completed_status(struct rte_dmadev *dev, uint16_t qid __rte_unused int idxd_stats_get(const struct rte_dmadev *dev, uint16_t vchan, struct rte_dmadev_stats *stats, uint32_t stats_sz); int idxd_stats_reset(struct rte_dmadev *dev, uint16_t vchan); +int idxd_vchan_idle(const struct rte_dmadev *dev, uint16_t vchan); #endif /* _IDXD_INTERNAL_H_ */ diff --git a/drivers/dma/idxd/idxd_pci.c b/drivers/dma/idxd/idxd_pci.c index a84232b6e9..b7a079ac52 100644 --- a/drivers/dma/idxd/idxd_pci.c +++ b/drivers/dma/idxd/idxd_pci.c @@ -118,6 +118,7 @@ static const struct rte_dmadev_ops idxd_pci_ops = { .stats_reset = idxd_stats_reset, .dev_start = idxd_pci_dev_start, .dev_stop = idxd_pci_dev_stop, + .vchan_idle = idxd_vchan_idle, }; /* each portal uses 4 x 4k pages */ -- 2.30.2