baseband/fpga_5gnr_fec: add info get function

Add in the "info_get" function to the driver, to allow us to query the
device.
No capability are available yet.
Linking bbdev-test to support the PMD with null capability.

Signed-off-by: Nicolas Chautru <nicolas.chautru@intel.com>
Acked-by: Dave Burley <dave.burley@accelercomm.com>
Acked-by: Niall Power <niall.power@intel.com>
Acked-by: Akhil Goyal <akhil.goyal@nxp.com>

diff --git a/app/test-bbdev/Makefile b/app/test-bbdev/Makefile
index 8272d2b..dc29557 100644 (file)
--- a/app/test-bbdev/Makefile
+++ b/app/test-bbdev/Makefile
@@ -23,5 +23,8 @@ LDLIBS += -lm
 ifeq ($(CONFIG_RTE_LIBRTE_PMD_BBDEV_FPGA_LTE_FEC),y)
 LDLIBS += -lrte_pmd_bbdev_fpga_lte_fec
 endif
+ifeq ($(CONFIG_RTE_LIBRTE_PMD_BBDEV_FPGA_5GNR_FEC),y)
+LDLIBS += -lrte_pmd_bbdev_fpga_5gnr_fec
+endif
 
 include $(RTE_SDK)/mk/rte.app.mk

diff --git a/app/test-bbdev/meson.build b/app/test-bbdev/meson.build
index 0d9f684..18ab6a8 100644 (file)
--- a/app/test-bbdev/meson.build
+++ b/app/test-bbdev/meson.build
@@ -9,3 +9,6 @@ deps += ['bbdev', 'bus_vdev']
 if dpdk_conf.has('RTE_LIBRTE_PMD_BBDEV_FPGA_LTE_FEC')
        deps += ['pmd_bbdev_fpga_lte_fec']
 endif
+if dpdk_conf.has('RTE_LIBRTE_PMD_BBDEV_FPGA_5GNR_FEC')
+       deps += ['pmd_bbdev_fpga_5gnr_fec']
+endif

diff --git a/drivers/baseband/fpga_5gnr_fec/fpga_5gnr_fec.h b/drivers/baseband/fpga_5gnr_fec/fpga_5gnr_fec.h
index 98a2fe9..ab51cb7 100644 (file)
--- a/drivers/baseband/fpga_5gnr_fec/fpga_5gnr_fec.h
+++ b/drivers/baseband/fpga_5gnr_fec/fpga_5gnr_fec.h
@@ -227,4 +227,13 @@ struct fpga_5gnr_fec_device {
        bool pf_device;
 };
 
+/* Read a register of FPGA 5GNR FEC device */
+static inline uint32_t
+fpga_reg_read_32(void *mmio_base, uint32_t offset)
+{
+       void *reg_addr = RTE_PTR_ADD(mmio_base, offset);
+       uint32_t ret = *((volatile uint32_t *)(reg_addr));
+       return rte_le_to_cpu_32(ret);
+}
+
 #endif /* _FPGA_5GNR_FEC_H_ */

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 ae0ec11..b3f2d0e 100644 (file)
--- a/drivers/baseband/fpga_5gnr_fec/rte_fpga_5gnr_fec.c
+++ b/drivers/baseband/fpga_5gnr_fec/rte_fpga_5gnr_fec.c
@@ -28,8 +28,61 @@ fpga_dev_close(struct rte_bbdev *dev __rte_unused)
        return 0;
 }
 
+static void
+fpga_dev_info_get(struct rte_bbdev *dev,
+               struct rte_bbdev_driver_info *dev_info)
+{
+       struct fpga_5gnr_fec_device *d = dev->data->dev_private;
+       uint32_t q_id = 0;
+
+       static const struct rte_bbdev_op_cap bbdev_capabilities[] = {
+               RTE_BBDEV_END_OF_CAPABILITIES_LIST()
+       };
+
+       /* Check the HARQ DDR size available */
+       uint8_t timeout_counter = 0;
+       uint32_t harq_buf_ready = fpga_reg_read_32(d->mmio_base,
+                       FPGA_5GNR_FEC_HARQ_BUF_SIZE_RDY_REGS);
+       while (harq_buf_ready != 1) {
+               usleep(FPGA_TIMEOUT_CHECK_INTERVAL);
+               timeout_counter++;
+               harq_buf_ready = fpga_reg_read_32(d->mmio_base,
+                               FPGA_5GNR_FEC_HARQ_BUF_SIZE_RDY_REGS);
+               if (timeout_counter > FPGA_HARQ_RDY_TIMEOUT) {
+                       rte_bbdev_log(ERR, "HARQ Buffer not ready %d",
+                                       harq_buf_ready);
+                       harq_buf_ready = 1;
+               }
+       }
+       uint32_t harq_buf_size = fpga_reg_read_32(d->mmio_base,
+                       FPGA_5GNR_FEC_HARQ_BUF_SIZE_REGS);
+
+       static struct rte_bbdev_queue_conf default_queue_conf;
+       default_queue_conf.socket = dev->data->socket_id;
+       default_queue_conf.queue_size = FPGA_RING_MAX_SIZE;
+
+       dev_info->driver_name = dev->device->driver->name;
+       dev_info->queue_size_lim = FPGA_RING_MAX_SIZE;
+       dev_info->hardware_accelerated = true;
+       dev_info->min_alignment = 64;
+       dev_info->harq_buffer_size = (harq_buf_size >> 10) + 1;
+       dev_info->default_queue_conf = default_queue_conf;
+       dev_info->capabilities = bbdev_capabilities;
+       dev_info->cpu_flag_reqs = NULL;
+
+       /* Calculates number of queues assigned to device */
+       dev_info->max_num_queues = 0;
+       for (q_id = 0; q_id < FPGA_TOTAL_NUM_QUEUES; ++q_id) {
+               uint32_t hw_q_id = fpga_reg_read_32(d->mmio_base,
+                               FPGA_5GNR_FEC_QUEUE_MAP + (q_id << 2));
+               if (hw_q_id != FPGA_INVALID_HW_QUEUE_ID)
+                       dev_info->max_num_queues++;
+       }
+}
+
 static const struct rte_bbdev_ops fpga_ops = {
        .close = fpga_dev_close,
+       .info_get = fpga_dev_info_get,
 };
 
 /* Initialization Function */