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From:   Jason Wang <jasowang@redhat.com>
To:     mst@redhat.com, virtualization@lists.linux-foundation.org,
        linux-kernel@vger.kernel.org
Cc:     rob.miller@broadcom.com, lingshan.zhu@intel.com,
        eperezma@redhat.com, lulu@redhat.com, shahafs@mellanox.com,
        hanand@xilinx.com, mhabets@solarflare.com, gdawar@xilinx.com,
        saugatm@xilinx.com, vmireyno@marvell.com,
        zhangweining@ruijie.com.cn, eli@mellanox.com,
        Jason Wang <jasowang@redhat.com>
Subject: [PATCH V3 3/3] vdpa_sim: implement get_iova_range()
Date:   Fri, 23 Oct 2020 10:24:54 +0800
Message-Id: <20201023022454.24402-4-jasowang@redhat.com>
In-Reply-To: <20201023022454.24402-1-jasowang@redhat.com>
References: <20201023022454.24402-1-jasowang@redhat.com>
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This implements a sample get_iova_range() for the simulator which
advertise [0, ULLONG_MAX] as the valid range.

Signed-off-by: Jason Wang <jasowang@redhat.com>
---
 drivers/vdpa/vdpa_sim/vdpa_sim.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/drivers/vdpa/vdpa_sim/vdpa_sim.c b/drivers/vdpa/vdpa_sim/vdpa_sim.c
index 62d640327145..ff6c9fd8d879 100644
--- a/drivers/vdpa/vdpa_sim/vdpa_sim.c
+++ b/drivers/vdpa/vdpa_sim/vdpa_sim.c
@@ -574,6 +574,16 @@ static u32 vdpasim_get_generation(struct vdpa_device *vdpa)
 	return vdpasim->generation;
 }
 
+static struct vdpa_iova_range vdpasim_get_iova_range(struct vdpa_device *vdpa)
+{
+	struct vdpa_iova_range range = {
+		.first = 0ULL,
+		.last = ULLONG_MAX,
+	};
+
+	return range;
+}
+
 static int vdpasim_set_map(struct vdpa_device *vdpa,
 			   struct vhost_iotlb *iotlb)
 {
@@ -657,6 +667,7 @@ static const struct vdpa_config_ops vdpasim_net_config_ops = {
 	.get_config             = vdpasim_get_config,
 	.set_config             = vdpasim_set_config,
 	.get_generation         = vdpasim_get_generation,
+	.get_iova_range         = vdpasim_get_iova_range,
 	.dma_map                = vdpasim_dma_map,
 	.dma_unmap              = vdpasim_dma_unmap,
 	.free                   = vdpasim_free,
@@ -683,6 +694,7 @@ static const struct vdpa_config_ops vdpasim_net_batch_config_ops = {
 	.get_config             = vdpasim_get_config,
 	.set_config             = vdpasim_set_config,
 	.get_generation         = vdpasim_get_generation,
+	.get_iova_range         = vdpasim_get_iova_range,
 	.set_map                = vdpasim_set_map,
 	.free                   = vdpasim_free,
 };
-- 
2.20.1