[PATCH v2] rawdev: add API to get device from index

[Akhil Goyal <gakhil@marvell.com>]

Added an internal API for PMDs to get raw device pointer
from a device id.

Signed-off-by: Akhil Goyal <gakhil@marvell.com>
---
- resend patch for main branch separated from rvu_lf raw driver
https://patches.dpdk.org/project/dpdk/list/?series=32949

 lib/rawdev/rte_rawdev_pmd.h | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/lib/rawdev/rte_rawdev_pmd.h b/lib/rawdev/rte_rawdev_pmd.h
index 22b406444d..8339122348 100644
--- a/lib/rawdev/rte_rawdev_pmd.h
+++ b/lib/rawdev/rte_rawdev_pmd.h
@@ -102,6 +102,30 @@ rte_rawdev_pmd_get_named_dev(const char *name)
 	return NULL;
 }
 
+/**
+ * Get the rte_rawdev structure device pointer for given device ID.
+ *
+ * @param dev_id
+ *   raw device index.
+ *
+ * @return
+ *   - The rte_rawdev structure pointer for the given device ID.
+ */
+static inline struct rte_rawdev *
+rte_rawdev_pmd_get_dev(uint8_t dev_id)
+{
+	struct rte_rawdev *dev;
+
+	if (dev_id >= RTE_RAWDEV_MAX_DEVS)
+		return NULL;
+
+	dev = &rte_rawdevs[dev_id];
+	if (dev->attached == RTE_RAWDEV_ATTACHED)
+		return dev;
+
+	return NULL;
+}
+
 /**
  * Validate if the raw device index is a valid attached raw device.
  *
-- 
2.25.1