[dpdk-dev] [PATCH 20.11 16/20] raw/ioat: add info function for idxd devices

[Bruce Richardson]

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.richard...@intel.com>
---
 drivers/raw/ioat/idxd_pci.c     |  1 +
 drivers/raw/ioat/idxd_vdev.c    |  1 +
 drivers/raw/ioat/ioat_common.c  | 16 ++++++++++++++++
 drivers/raw/ioat/ioat_private.h |  3 +++
 4 files changed, 21 insertions(+)

diff --git a/drivers/raw/ioat/idxd_pci.c b/drivers/raw/ioat/idxd_pci.c
index 6655cf9b7..2b5a0e1c8 100644
--- a/drivers/raw/ioat/idxd_pci.c
+++ b/drivers/raw/ioat/idxd_pci.c
@@ -107,6 +107,7 @@ 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 ab7efd216..8b7c2cacd 100644
--- a/drivers/raw/ioat/idxd_vdev.c
+++ b/drivers/raw/ioat/idxd_vdev.c
@@ -86,6 +86,7 @@ static const struct rte_rawdev_ops idxd_vdev_ops = {
                .dev_configure = idxd_dev_configure,
                .dev_start = idxd_vdev_start,
                .dev_stop = idxd_vdev_stop,
+               .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 33e5bb4a6..fe293aebf 100644
--- a/drivers/raw/ioat/ioat_common.c
+++ b/drivers/raw/ioat/ioat_common.c
@@ -37,6 +37,22 @@ 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;
+       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 91ded444b..35189b15f 100644
--- a/drivers/raw/ioat/ioat_private.h
+++ b/drivers/raw/ioat/ioat_private.h
@@ -62,6 +62,9 @@ extern int idxd_rawdev_create(const char *name, struct 
rte_device *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