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 64B40A0C43; Mon, 18 Oct 2021 14:30:04 +0200 (CEST) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id CEF084115A; Mon, 18 Oct 2021 14:28:50 +0200 (CEST) Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by mails.dpdk.org (Postfix) with ESMTP id BD20E41153 for ; Mon, 18 Oct 2021 14:28:46 +0200 (CEST) X-IronPort-AV: E=McAfee;i="6200,9189,10140"; a="215401568" X-IronPort-AV: E=Sophos;i="5.85,382,1624345200"; d="scan'208";a="215401568" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Oct 2021 05:28:46 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.85,382,1624345200"; d="scan'208";a="493562524" Received: from silpixa00401122.ir.intel.com ([10.55.128.10]) by orsmga008.jf.intel.com with ESMTP; 18 Oct 2021 05:28:44 -0700 From: Kevin Laatz To: dev@dpdk.org Cc: thomas@monjalon.net, bruce.richardson@intel.com, fengchengwen@huawei.com, jerinj@marvell.com, conor.walsh@intel.com, Kevin Laatz Date: Mon, 18 Oct 2021 12:28:14 +0000 Message-Id: <20211018122818.1579942-13-kevin.laatz@intel.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20211018122818.1579942-1-kevin.laatz@intel.com> References: <20210827172048.558704-1-kevin.laatz@intel.com> <20211018122818.1579942-1-kevin.laatz@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: [dpdk-dev] [PATCH v8 12/16] dma/idxd: add vchan status 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 Reviewed-by: Conor Walsh --- drivers/dma/idxd/idxd_bus.c | 1 + drivers/dma/idxd/idxd_common.c | 17 +++++++++++++++++ drivers/dma/idxd/idxd_internal.h | 2 ++ drivers/dma/idxd/idxd_pci.c | 1 + 4 files changed, 21 insertions(+) diff --git a/drivers/dma/idxd/idxd_bus.c b/drivers/dma/idxd/idxd_bus.c index b52ea02854..e6caa048a9 100644 --- a/drivers/dma/idxd/idxd_bus.c +++ b/drivers/dma/idxd/idxd_bus.c @@ -101,6 +101,7 @@ static const struct rte_dma_dev_ops idxd_bus_ops = { .dev_info_get = idxd_info_get, .stats_get = idxd_stats_get, .stats_reset = idxd_stats_reset, + .vchan_status = idxd_vchan_status, }; static void * diff --git a/drivers/dma/idxd/idxd_common.c b/drivers/dma/idxd/idxd_common.c index fd81418b7c..3c8cff15c0 100644 --- a/drivers/dma/idxd/idxd_common.c +++ b/drivers/dma/idxd/idxd_common.c @@ -163,6 +163,23 @@ get_comp_status(struct idxd_completion *c) } } +int +idxd_vchan_status(const struct rte_dma_dev *dev, uint16_t vchan __rte_unused, + enum rte_dma_vchan_status *status) +{ + struct idxd_dmadev *idxd = dev->fp_obj->dev_private; + uint16_t last_batch_write = idxd->batch_idx_write == 0 ? idxd->max_batches : + idxd->batch_idx_write - 1; + uint8_t bstatus = (idxd->batch_comp_ring[last_batch_write].status != 0); + + /* An IDXD device will always be either active or idle. + * RTE_DMA_VCHAN_HALTED_ERROR is therefore not supported by IDXD. + */ + *status = bstatus ? RTE_DMA_VCHAN_IDLE : RTE_DMA_VCHAN_ACTIVE; + + return 0; +} + static __rte_always_inline int batch_ok(struct idxd_dmadev *idxd, uint16_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 a85a1fb79e..50acb82d3d 100644 --- a/drivers/dma/idxd/idxd_internal.h +++ b/drivers/dma/idxd/idxd_internal.h @@ -102,5 +102,7 @@ uint16_t idxd_completed_status(void *dev_private, uint16_t qid __rte_unused, int idxd_stats_get(const struct rte_dma_dev *dev, uint16_t vchan, struct rte_dma_stats *stats, uint32_t stats_sz); int idxd_stats_reset(struct rte_dma_dev *dev, uint16_t vchan); +int idxd_vchan_status(const struct rte_dma_dev *dev, uint16_t vchan, + enum rte_dma_vchan_status *status); #endif /* _IDXD_INTERNAL_H_ */ diff --git a/drivers/dma/idxd/idxd_pci.c b/drivers/dma/idxd/idxd_pci.c index 9d7f0531d5..23c10c0fb0 100644 --- a/drivers/dma/idxd/idxd_pci.c +++ b/drivers/dma/idxd/idxd_pci.c @@ -140,6 +140,7 @@ static const struct rte_dma_dev_ops idxd_pci_ops = { .stats_reset = idxd_stats_reset, .dev_start = idxd_pci_dev_start, .dev_stop = idxd_pci_dev_stop, + .vchan_status = idxd_vchan_status, }; /* each portal uses 4 x 4k pages */ -- 2.30.2