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From: Wenwu Ma <wenwux.ma@intel.com>
To: dev@dpdk.org
Cc: maxime.coquelin@redhat.com, chenbo.xia@intel.com,
	cheng1.jiang@intel.com, jiayu.hu@intel.com,
	Sunil.Pai.G@intel.com, yvonnex.yang@intel.com,
	Wenwu Ma <wenwux.ma@intel.com>
Subject: [dpdk-dev] [PATCH 3/4] examples/vhost: use a new API to query remaining ring space
Date: Mon,  6 Sep 2021 20:48:36 +0000	[thread overview]
Message-ID: <20210906204837.112466-4-wenwux.ma@intel.com> (raw)
In-Reply-To: <20210906204837.112466-1-wenwux.ma@intel.com>

A new API for querying the remaining descriptor ring capacity
is available, so we use the new one instead of the old one.

Signed-off-by: Wenwu Ma <wenwux.ma@intel.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
---
 examples/vhost/ioat.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/examples/vhost/ioat.c b/examples/vhost/ioat.c
index 457f8171f0..6adc30b622 100644
--- a/examples/vhost/ioat.c
+++ b/examples/vhost/ioat.c
@@ -17,7 +17,6 @@ struct packet_tracker {
 	unsigned short next_read;
 	unsigned short next_write;
 	unsigned short last_remain;
-	unsigned short ioat_space;
 };
 
 struct packet_tracker cb_tracker[MAX_VHOST_DEVICE];
@@ -113,7 +112,6 @@ open_ioat(const char *value)
 			goto out;
 		}
 		rte_rawdev_start(dev_id);
-		cb_tracker[dev_id].ioat_space = IOAT_RING_SIZE - 1;
 		dma_info->nr++;
 		i++;
 	}
@@ -140,7 +138,7 @@ ioat_transfer_data_cb(int vid, uint16_t queue_id,
 			src = descs[i_desc].src;
 			dst = descs[i_desc].dst;
 			i_seg = 0;
-			if (cb_tracker[dev_id].ioat_space < src->nr_segs)
+			if (rte_ioat_burst_capacity(dev_id) < src->nr_segs)
 				break;
 			while (i_seg < src->nr_segs) {
 				rte_ioat_enqueue_copy(dev_id,
@@ -155,7 +153,6 @@ ioat_transfer_data_cb(int vid, uint16_t queue_id,
 			}
 			write &= mask;
 			cb_tracker[dev_id].size_track[write] = src->nr_segs;
-			cb_tracker[dev_id].ioat_space -= src->nr_segs;
 			write++;
 		}
 	} else {
@@ -194,7 +191,6 @@ ioat_check_completed_copies_cb(int vid, uint16_t queue_id,
 		if (n_seg == 0)
 			return 0;
 
-		cb_tracker[dev_id].ioat_space += n_seg;
 		n_seg += cb_tracker[dev_id].last_remain;
 
 		read = cb_tracker[dev_id].next_read;
-- 
2.25.1


  parent reply	other threads:[~2021-09-06  8:56 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-06 20:48 [dpdk-dev] [PATCH 0/4] support async dequeue for split ring Wenwu Ma
2021-09-06 20:48 ` [dpdk-dev] [PATCH 1/4] vhost: " Wenwu Ma
2021-09-10  7:36   ` Yang, YvonneX
2021-09-15  2:51   ` Xia, Chenbo
     [not found]     ` <CO1PR11MB4897F3D5ABDE7133DB99791385DB9@CO1PR11MB4897.namprd11.prod.outlook.com>
2021-09-15 11:35       ` Xia, Chenbo
2021-09-06 20:48 ` [dpdk-dev] [PATCH 2/4] examples/vhost: refactor vhost enqueue and dequeue datapaths Wenwu Ma
2021-09-10  7:38   ` Yang, YvonneX
2021-09-15  3:02   ` Xia, Chenbo
2021-09-06 20:48 ` Wenwu Ma [this message]
2021-09-10  7:38   ` [dpdk-dev] [PATCH 3/4] examples/vhost: use a new API to query remaining ring space Yang, YvonneX
2021-09-15  3:04   ` Xia, Chenbo
2021-09-06 20:48 ` [dpdk-dev] [PATCH 4/4] examples/vhost: support vhost async dequeue data path Wenwu Ma
2021-09-10  7:39   ` Yang, YvonneX
2021-09-15  3:27   ` Xia, Chenbo
2021-09-10  7:33 ` [dpdk-dev] [PATCH 0/4] support async dequeue for split ring Yang, YvonneX
2021-09-17 19:26 ` [dpdk-dev] [PATCH v2 " Wenwu Ma
2021-09-17 19:27   ` [dpdk-dev] [PATCH v2 1/4] vhost: " Wenwu Ma
2021-09-27  6:33     ` Jiang, Cheng1
2021-09-17 19:27   ` [dpdk-dev] [PATCH v2 2/4] examples/vhost: refactor vhost enqueue and dequeue datapaths Wenwu Ma
2021-09-27  6:56     ` Jiang, Cheng1
2021-09-17 19:27   ` [dpdk-dev] [PATCH v2 3/4] examples/vhost: use a new API to query remaining ring space Wenwu Ma
2021-09-17 19:27   ` [dpdk-dev] [PATCH v2 4/4] examples/vhost: support vhost async dequeue data path Wenwu Ma
2021-09-28 18:56 ` [dpdk-dev] [PATCH v3 0/4] support async dequeue for split ring Wenwu Ma
2021-09-28 18:56   ` [dpdk-dev] [PATCH v3 1/4] vhost: " Wenwu Ma
2021-09-28 18:56   ` [dpdk-dev] [PATCH v3 2/4] examples/vhost: refactor vhost enqueue and dequeue datapaths Wenwu Ma
2021-09-28 18:56   ` [dpdk-dev] [PATCH v3 3/4] examples/vhost: use a new API to query remaining ring space Wenwu Ma
2021-09-28 18:56   ` [dpdk-dev] [PATCH v3 4/4] examples/vhost: support vhost async dequeue data path Wenwu Ma

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