[dpdk-dev] [PATCH v5 20/25] raw/ioat: add info function for idxd devices

[Bruce Richardson <bruce.richardson@intel.com>]

Add the info get function for DSA devices, returning just the ring size
info about the device, same as is returned for existing IOAT/CBDMA devices.

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Reviewed-by: Kevin Laatz <kevin.laatz@intel.com>
Acked-by: Radu Nicolau <radu.nicolau@intel.com>
---
 drivers/raw/ioat/idxd_pci.c     |  1 +
 drivers/raw/ioat/idxd_vdev.c    |  1 +
 drivers/raw/ioat/ioat_common.c  | 18 ++++++++++++++++++
 drivers/raw/ioat/ioat_private.h |  3 +++
 4 files changed, 23 insertions(+)

diff --git a/drivers/raw/ioat/idxd_pci.c b/drivers/raw/ioat/idxd_pci.c
index 6b5c47392..bf5edcfdd 100644
--- a/drivers/raw/ioat/idxd_pci.c
+++ b/drivers/raw/ioat/idxd_pci.c
@@ -106,6 +106,7 @@ static const struct rte_rawdev_ops idxd_pci_ops = {
 		.dev_configure = idxd_dev_configure,
 		.dev_start = idxd_pci_dev_start,
 		.dev_stop = idxd_pci_dev_stop,
+		.dev_info_get = idxd_dev_info_get,
 };
 
 /* each portal uses 4 x 4k pages */
diff --git a/drivers/raw/ioat/idxd_vdev.c b/drivers/raw/ioat/idxd_vdev.c
index 3dad1473b..c75ac4317 100644
--- a/drivers/raw/ioat/idxd_vdev.c
+++ b/drivers/raw/ioat/idxd_vdev.c
@@ -35,6 +35,7 @@ static const struct rte_rawdev_ops idxd_vdev_ops = {
 		.dev_selftest = idxd_rawdev_test,
 		.dump = idxd_dev_dump,
 		.dev_configure = idxd_dev_configure,
+		.dev_info_get = idxd_dev_info_get,
 };
 
 static void *
diff --git a/drivers/raw/ioat/ioat_common.c b/drivers/raw/ioat/ioat_common.c
index 6a4e2979f..b5cea2fda 100644
--- a/drivers/raw/ioat/ioat_common.c
+++ b/drivers/raw/ioat/ioat_common.c
@@ -44,6 +44,24 @@ idxd_dev_dump(struct rte_rawdev *dev, FILE *f)
 	return 0;
 }
 
+int
+idxd_dev_info_get(struct rte_rawdev *dev, rte_rawdev_obj_t dev_info,
+		size_t info_size)
+{
+	struct rte_ioat_rawdev_config *cfg = dev_info;
+	struct idxd_rawdev *idxd = dev->dev_private;
+	struct rte_idxd_rawdev *rte_idxd = &idxd->public;
+
+	if (info_size != sizeof(*cfg))
+		return -EINVAL;
+
+	if (cfg != NULL) {
+		cfg->ring_size = rte_idxd->hdl_ring_sz;
+		cfg->hdls_disable = rte_idxd->hdls_disable;
+	}
+	return 0;
+}
+
 int
 idxd_dev_configure(const struct rte_rawdev *dev,
 		rte_rawdev_obj_t config, size_t config_size)
diff --git a/drivers/raw/ioat/ioat_private.h b/drivers/raw/ioat/ioat_private.h
index aba70d8d7..0f80d60bf 100644
--- a/drivers/raw/ioat/ioat_private.h
+++ b/drivers/raw/ioat/ioat_private.h
@@ -62,6 +62,9 @@ extern int idxd_rawdev_close(struct rte_rawdev *dev);
 extern int idxd_dev_configure(const struct rte_rawdev *dev,
 		rte_rawdev_obj_t config, size_t config_size);
 
+extern int idxd_dev_info_get(struct rte_rawdev *dev, rte_rawdev_obj_t dev_info,
+		size_t info_size);
+
 extern int idxd_rawdev_test(uint16_t dev_id);
 
 extern int idxd_dev_dump(struct rte_rawdev *dev, FILE *f);
-- 
2.25.1