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From: Maxime Coquelin <maxime.coquelin@redhat.com>
To: dev@dpdk.org, chenbo.xia@intel.com, david.marchand@redhat.com,
	mkp@redhat.com, fbl@redhat.com, jasowang@redhat.com,
	cunming.liang@intel.com, xieyongji@bytedance.com,
	echaudro@redhat.com, eperezma@redhat.com, amorenoz@redhat.com,
	lulu@redhat.com
Cc: Maxime Coquelin <maxime.coquelin@redhat.com>
Subject: [PATCH v3 16/28] net/vhost: use API to set max queue pairs
Date: Thu, 25 May 2023 18:25:39 +0200	[thread overview]
Message-ID: <20230525162551.70359-17-maxime.coquelin@redhat.com> (raw)
In-Reply-To: <20230525162551.70359-1-maxime.coquelin@redhat.com>

In order to support multiqueue with VDUSE, we need to
be able to limit the maximum number of queue pairs, to
avoid unnecessary memory consumption since the maximum
number of queue pairs need to be allocated at device
creation time, as opposed to Vhost-user which allocate
only when the frontend initialize them.

Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Reviewed-by: Chenbo Xia <chenbo.xia@intel.com>
---
 drivers/net/vhost/rte_eth_vhost.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/vhost/rte_eth_vhost.c b/drivers/net/vhost/rte_eth_vhost.c
index 62ef955ebc..8d37ec9775 100644
--- a/drivers/net/vhost/rte_eth_vhost.c
+++ b/drivers/net/vhost/rte_eth_vhost.c
@@ -1013,6 +1013,9 @@ vhost_driver_setup(struct rte_eth_dev *eth_dev)
 			goto drv_unreg;
 	}
 
+	if (rte_vhost_driver_set_max_queue_num(internal->iface_name, internal->max_queues))
+		goto drv_unreg;
+
 	if (rte_vhost_driver_callback_register(internal->iface_name,
 					       &vhost_ops) < 0) {
 		VHOST_LOG(ERR, "Can't register callbacks\n");
-- 
2.40.1


  parent reply	other threads:[~2023-05-25 16:27 UTC|newest]

Thread overview: 50+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-05-25 16:25 [PATCH v3 00/28] Add VDUSE support to Vhost library Maxime Coquelin
2023-05-25 16:25 ` [PATCH v3 01/28] vhost: fix missing guest notif stat increment Maxime Coquelin
2023-06-01 19:59   ` Maxime Coquelin
2023-05-25 16:25 ` [PATCH v3 02/28] vhost: fix invalid call FD handling Maxime Coquelin
2023-05-25 16:25 ` [PATCH v3 03/28] vhost: fix IOTLB entries overlap check with previous entry Maxime Coquelin
2023-05-25 16:25 ` [PATCH v3 04/28] vhost: add helper of IOTLB entries coredump Maxime Coquelin
2023-05-26  8:46   ` David Marchand
2023-06-01 13:43     ` Maxime Coquelin
2023-05-25 16:25 ` [PATCH v3 05/28] vhost: add helper for IOTLB entries shared page check Maxime Coquelin
2023-05-25 16:25 ` [PATCH v3 06/28] vhost: don't dump unneeded pages with IOTLB Maxime Coquelin
2023-05-25 16:25 ` [PATCH v3 07/28] vhost: change to single IOTLB cache per device Maxime Coquelin
2023-05-29  6:32   ` Xia, Chenbo
2023-05-25 16:25 ` [PATCH v3 08/28] vhost: add offset field to IOTLB entries Maxime Coquelin
2023-05-25 16:25 ` [PATCH v3 09/28] vhost: add page size info to IOTLB entry Maxime Coquelin
2023-05-29  6:32   ` Xia, Chenbo
2023-05-25 16:25 ` [PATCH v3 10/28] vhost: retry translating IOVA after IOTLB miss Maxime Coquelin
2023-05-25 16:25 ` [PATCH v3 11/28] vhost: introduce backend ops Maxime Coquelin
2023-05-25 16:25 ` [PATCH v3 12/28] vhost: add IOTLB cache entry removal callback Maxime Coquelin
2023-05-29  6:33   ` Xia, Chenbo
2023-05-25 16:25 ` [PATCH v3 13/28] vhost: add helper for IOTLB misses Maxime Coquelin
2023-05-29  6:33   ` Xia, Chenbo
2023-05-25 16:25 ` [PATCH v3 14/28] vhost: add helper for interrupt injection Maxime Coquelin
2023-05-26  8:54   ` David Marchand
2023-06-01 13:58     ` Maxime Coquelin
2023-05-25 16:25 ` [PATCH v3 15/28] vhost: add API to set max queue pairs Maxime Coquelin
2023-05-26  8:58   ` David Marchand
2023-06-01 14:00     ` Maxime Coquelin
2023-05-25 16:25 ` Maxime Coquelin [this message]
2023-05-25 16:25 ` [PATCH v3 17/28] vhost: add control virtqueue support Maxime Coquelin
2023-05-29  6:51   ` Xia, Chenbo
2023-05-25 16:25 ` [PATCH v3 18/28] vhost: add VDUSE device creation and destruction Maxime Coquelin
2023-05-26  9:11   ` David Marchand
2023-06-01 14:05     ` Maxime Coquelin
2023-05-25 16:25 ` [PATCH v3 19/28] vhost: add VDUSE callback for IOTLB miss Maxime Coquelin
2023-05-25 16:25 ` [PATCH v3 20/28] vhost: add VDUSE callback for IOTLB entry removal Maxime Coquelin
2023-05-29  6:51   ` Xia, Chenbo
2023-05-25 16:25 ` [PATCH v3 21/28] vhost: add VDUSE callback for IRQ injection Maxime Coquelin
2023-05-25 16:25 ` [PATCH v3 22/28] vhost: add VDUSE events handler Maxime Coquelin
2023-05-25 16:25 ` [PATCH v3 23/28] vhost: add support for virtqueue state get event Maxime Coquelin
2023-05-25 16:25 ` [PATCH v3 24/28] vhost: add support for VDUSE status set event Maxime Coquelin
2023-05-25 16:25 ` [PATCH v3 25/28] vhost: add support for VDUSE IOTLB update event Maxime Coquelin
2023-05-29  6:52   ` Xia, Chenbo
2023-05-25 16:25 ` [PATCH v3 26/28] vhost: add VDUSE device startup Maxime Coquelin
2023-05-25 16:25 ` [PATCH v3 27/28] vhost: add multiqueue support to VDUSE Maxime Coquelin
2023-05-25 16:25 ` [PATCH v3 28/28] vhost: add VDUSE device stop Maxime Coquelin
2023-05-29  6:53   ` Xia, Chenbo
2023-06-01 18:48     ` Maxime Coquelin
2023-05-26  9:14 ` [PATCH v3 00/28] Add VDUSE support to Vhost library David Marchand
2023-06-01 14:59   ` Maxime Coquelin
2023-06-01 15:18     ` David Marchand

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