patches for DPDK stable branches
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From: Maxime Coquelin <maxime.coquelin@redhat.com>
To: tiwei.bie@intel.com, zhihong.wang@intel.com, amorenoz@redhat.com,
	xiao.w.wang@intel.com, dev@dpdk.org, jfreimann@redhat.com
Cc: stable@dpdk.org, Maxime Coquelin <maxime.coquelin@redhat.com>
Subject: [dpdk-stable] [PATCH 14/15] net/virtio: add vDPA op to get notification area
Date: Thu, 29 Aug 2019 09:59:59 +0200
Message-ID: <20190829080000.20806-15-maxime.coquelin@redhat.com> (raw)
In-Reply-To: <20190829080000.20806-1-maxime.coquelin@redhat.com>

This patch implements the vDPA .get_notify_area()
callback.

Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
---
 drivers/net/virtio/virtio_vdpa.c | 33 ++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/drivers/net/virtio/virtio_vdpa.c b/drivers/net/virtio/virtio_vdpa.c
index e0b2f99ba..e681f527a 100644
--- a/drivers/net/virtio/virtio_vdpa.c
+++ b/drivers/net/virtio/virtio_vdpa.c
@@ -707,6 +707,38 @@ virtio_vdpa_get_vfio_device_fd(int vid)
 	return list->dev->vfio_dev_fd;
 }
 
+static int
+virtio_vdpa_get_notify_area(int vid, int qid, uint64_t *offset, uint64_t *size)
+{
+	int did;
+	struct internal_list *list;
+	struct virtio_vdpa_device *dev;
+	struct vfio_region_info reg = { .argsz = sizeof(reg) };
+	int ret;
+
+	did = rte_vhost_get_vdpa_device_id(vid);
+	list = find_internal_resource_by_did(did);
+	if (list == NULL) {
+		DRV_LOG(ERR, "Invalid device id: %d", did);
+		return -1;
+	}
+
+	dev = list->dev;
+
+	reg.index = dev->hw.notify_region;
+	ret = ioctl(dev->vfio_dev_fd, VFIO_DEVICE_GET_REGION_INFO, &reg);
+	if (ret) {
+		DRV_LOG(ERR, "Get not get device region info: %s",
+				strerror(errno));
+		return -1;
+	}
+
+	*offset = dev->vqs[qid].notify_addr - dev->hw.notify_base + reg.offset;
+	*size = 0x1000;
+
+	return 0;
+}
+
 static struct rte_vdpa_dev_ops virtio_vdpa_ops = {
 	.get_queue_num = virtio_vdpa_get_queue_num,
 	.get_features = virtio_vdpa_get_features,
@@ -716,6 +748,7 @@ static struct rte_vdpa_dev_ops virtio_vdpa_ops = {
 	.set_features = virtio_vdpa_set_features,
 	.get_vfio_group_fd = virtio_vdpa_get_vfio_group_fd,
 	.get_vfio_device_fd = virtio_vdpa_get_vfio_device_fd,
+	.get_notify_area = virtio_vdpa_get_notify_area,
 };
 
 static inline int
-- 
2.21.0


  parent reply index

Thread overview: 51+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-29  7:59 [dpdk-stable] [PATCH 00/15] Introduce Virtio vDPA driver Maxime Coquelin
2019-08-29  7:59 ` [dpdk-stable] [PATCH 01/15] vhost: remove vhost kernel header inclusion Maxime Coquelin
2019-09-02  6:03   ` Tiwei Bie
2019-09-03  7:24     ` Maxime Coquelin
2019-08-29  7:59 ` [dpdk-stable] [PATCH 02/15] vhost: configure vDPA as soon as the device is ready Maxime Coquelin
2019-09-02  8:34   ` Ye Xiaolong
2019-09-02  9:02     ` Wang, Xiao W
2019-09-03  7:34       ` Maxime Coquelin
2019-09-03 10:58         ` Wang, Xiao W
2019-08-29  7:59 ` [dpdk-stable] [PATCH 03/15] net/virtio: move control path fonctions in virtqueue file Maxime Coquelin
2019-09-02  6:05   ` Tiwei Bie
2019-08-29  7:59 ` [dpdk-stable] [PATCH 04/15] net/virtio: add virtio PCI subsystem device ID declaration Maxime Coquelin
2019-09-02  6:14   ` Tiwei Bie
2019-09-03  7:25     ` Maxime Coquelin
2019-08-29  7:59 ` [dpdk-stable] [PATCH 05/15] net/virtio: save notify bar ID in virtio HW struct Maxime Coquelin
2019-09-02  6:17   ` Tiwei Bie
2019-08-29  7:59 ` [dpdk-stable] [PATCH 06/15] net/virtio: add skeleton for virtio vDPA driver Maxime Coquelin
2019-09-02  6:27   ` Tiwei Bie
2019-09-03  7:25     ` Maxime Coquelin
2019-08-29  7:59 ` [dpdk-stable] [PATCH 07/15] net/virtio: add vDPA ops to get number of queue Maxime Coquelin
2019-09-02  6:32   ` Tiwei Bie
2019-08-29  7:59 ` [dpdk-stable] [PATCH 08/15] net/virtio: add virtio vDPA op to get features Maxime Coquelin
2019-09-02  6:43   ` Tiwei Bie
2019-09-03  7:27     ` Maxime Coquelin
2019-08-29  7:59 ` [dpdk-stable] [PATCH 09/15] net/virtio: add virtio vDPA op to get protocol features Maxime Coquelin
2019-09-02  6:46   ` Tiwei Bie
2019-08-29  7:59 ` [dpdk-stable] [PATCH 10/15] net/virtio: add vDPA op to configure and start the device Maxime Coquelin
2019-09-03  5:30   ` Tiwei Bie
2019-09-03  7:40     ` Maxime Coquelin
2019-09-03  8:49       ` Tiwei Bie
2019-09-04  4:06         ` Jason Wang
2019-09-04  6:56           ` Maxime Coquelin
2019-09-05  2:57             ` Tiwei Bie
2019-08-29  7:59 ` [dpdk-stable] [PATCH 11/15] net/virtio: add vDPA op to stop and close " Maxime Coquelin
2019-09-02  7:07   ` Tiwei Bie
2019-09-03  7:30     ` Maxime Coquelin
2019-08-29  7:59 ` [dpdk-stable] [PATCH 12/15] net/virtio: add vDPA op to set features Maxime Coquelin
2019-08-29  7:59 ` [dpdk-stable] [PATCH 13/15] net/virtio: add vDPA ops to get VFIO FDs Maxime Coquelin
2019-09-03  4:47   ` Tiwei Bie
2019-08-29  7:59 ` Maxime Coquelin [this message]
2019-09-03  5:02   ` [dpdk-stable] [PATCH 14/15] net/virtio: add vDPA op to get notification area Tiwei Bie
2019-09-03  7:36     ` Maxime Coquelin
2019-09-03  8:40       ` Tiwei Bie
2019-08-29  8:00 ` [dpdk-stable] [PATCH 15/15] doc: add documentation for Virtio vDPA driver Maxime Coquelin
2019-09-09 11:55 ` [dpdk-stable] [dpdk-dev] [PATCH 00/15] Introduce " Shahaf Shuler
2019-09-10  7:46   ` Maxime Coquelin
2019-09-10 13:44     ` Shahaf Shuler
2019-09-10 13:56       ` Maxime Coquelin
2019-09-11  5:15         ` Shahaf Shuler
2019-09-11  7:15           ` Maxime Coquelin
2019-10-24  6:32 ` [dpdk-stable] " Maxime Coquelin

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