[dpdk-dev] [PATCH v10 1/8] bbdev: add device info related to data endianness

[nipun.gupta@nxp.com]

From: Nicolas Chautru <nicolas.chautru@intel.com>

Adding device information to capture explicitly the assumption
of the input/output data byte endianness being processed.

Signed-off-by: Nicolas Chautru <nicolas.chautru@intel.com>
Signed-off-by: Nipun Gupta <nipun.gupta@nxp.com>
---
 doc/guides/rel_notes/release_21_11.rst             | 1 +
 drivers/baseband/acc100/rte_acc100_pmd.c           | 1 +
 drivers/baseband/fpga_5gnr_fec/rte_fpga_5gnr_fec.c | 1 +
 drivers/baseband/fpga_lte_fec/fpga_lte_fec.c       | 1 +
 drivers/baseband/null/bbdev_null.c                 | 6 ++++++
 drivers/baseband/turbo_sw/bbdev_turbo_software.c   | 1 +
 lib/bbdev/rte_bbdev.h                              | 4 ++++
 7 files changed, 15 insertions(+)

diff --git a/doc/guides/rel_notes/release_21_11.rst b/doc/guides/rel_notes/release_21_11.rst
index c0a7f75518..135aa467f2 100644
--- a/doc/guides/rel_notes/release_21_11.rst
+++ b/doc/guides/rel_notes/release_21_11.rst
@@ -194,6 +194,7 @@ API Changes
   the crypto/security operation. This field will be used to communicate
   events such as soft expiry with IPsec in lookaside mode.
 
+* bbdev: Added device info related to data byte endianness processing.
 
 ABI Changes
 -----------
diff --git a/drivers/baseband/acc100/rte_acc100_pmd.c b/drivers/baseband/acc100/rte_acc100_pmd.c
index 68ba523ea9..361e06cf94 100644
--- a/drivers/baseband/acc100/rte_acc100_pmd.c
+++ b/drivers/baseband/acc100/rte_acc100_pmd.c
@@ -1088,6 +1088,7 @@ acc100_dev_info_get(struct rte_bbdev *dev,
 #else
 	dev_info->harq_buffer_size = 0;
 #endif
+	dev_info->data_endianness = RTE_LITTLE_ENDIAN;
 	acc100_check_ir(d);
 }
 
diff --git a/drivers/baseband/fpga_5gnr_fec/rte_fpga_5gnr_fec.c b/drivers/baseband/fpga_5gnr_fec/rte_fpga_5gnr_fec.c
index 6485cc824a..ee457f3071 100644
--- a/drivers/baseband/fpga_5gnr_fec/rte_fpga_5gnr_fec.c
+++ b/drivers/baseband/fpga_5gnr_fec/rte_fpga_5gnr_fec.c
@@ -372,6 +372,7 @@ fpga_dev_info_get(struct rte_bbdev *dev,
 	dev_info->default_queue_conf = default_queue_conf;
 	dev_info->capabilities = bbdev_capabilities;
 	dev_info->cpu_flag_reqs = NULL;
+	dev_info->data_endianness = RTE_LITTLE_ENDIAN;
 
 	/* Calculates number of queues assigned to device */
 	dev_info->max_num_queues = 0;
diff --git a/drivers/baseband/fpga_lte_fec/fpga_lte_fec.c b/drivers/baseband/fpga_lte_fec/fpga_lte_fec.c
index 350c4248eb..703bb611a0 100644
--- a/drivers/baseband/fpga_lte_fec/fpga_lte_fec.c
+++ b/drivers/baseband/fpga_lte_fec/fpga_lte_fec.c
@@ -644,6 +644,7 @@ fpga_dev_info_get(struct rte_bbdev *dev,
 	dev_info->default_queue_conf = default_queue_conf;
 	dev_info->capabilities = bbdev_capabilities;
 	dev_info->cpu_flag_reqs = NULL;
+	dev_info->data_endianness = RTE_LITTLE_ENDIAN;
 
 	/* Calculates number of queues assigned to device */
 	dev_info->max_num_queues = 0;
diff --git a/drivers/baseband/null/bbdev_null.c b/drivers/baseband/null/bbdev_null.c
index 53c538ba44..753d920e18 100644
--- a/drivers/baseband/null/bbdev_null.c
+++ b/drivers/baseband/null/bbdev_null.c
@@ -77,6 +77,12 @@ info_get(struct rte_bbdev *dev, struct rte_bbdev_driver_info *dev_info)
 	dev_info->cpu_flag_reqs = NULL;
 	dev_info->min_alignment = 0;
 
+	/* BBDEV null device does not process the data, so
+	 * endianness setting is not relevant, but setting it
+	 * here for code completeness.
+	 */
+	dev_info->data_endianness = RTE_LITTLE_ENDIAN;
+
 	rte_bbdev_log_debug("got device info from %u", dev->data->dev_id);
 }
 
diff --git a/drivers/baseband/turbo_sw/bbdev_turbo_software.c b/drivers/baseband/turbo_sw/bbdev_turbo_software.c
index 77e9a2ecbc..7dfeec665a 100644
--- a/drivers/baseband/turbo_sw/bbdev_turbo_software.c
+++ b/drivers/baseband/turbo_sw/bbdev_turbo_software.c
@@ -251,6 +251,7 @@ info_get(struct rte_bbdev *dev, struct rte_bbdev_driver_info *dev_info)
 	dev_info->capabilities = bbdev_capabilities;
 	dev_info->min_alignment = 64;
 	dev_info->harq_buffer_size = 0;
+	dev_info->data_endianness = RTE_LITTLE_ENDIAN;
 
 	rte_bbdev_log_debug("got device info from %u\n", dev->data->dev_id);
 }
diff --git a/lib/bbdev/rte_bbdev.h b/lib/bbdev/rte_bbdev.h
index 3ebf62e697..e863bd913f 100644
--- a/lib/bbdev/rte_bbdev.h
+++ b/lib/bbdev/rte_bbdev.h
@@ -309,6 +309,10 @@ struct rte_bbdev_driver_info {
 	uint16_t min_alignment;
 	/** HARQ memory available in kB */
 	uint32_t harq_buffer_size;
+	/** Byte endianness (RTE_BIG_ENDIAN/RTE_LITTLE_ENDIAN) supported
+	 *  for input/output data
+	 */
+	uint8_t data_endianness;
 	/** Default queue configuration used if none is supplied  */
 	struct rte_bbdev_queue_conf default_queue_conf;
 	/** Device operation capabilities */
-- 
2.17.1