[PATCH v1 2/7] baseband/acc: add FFT version in the VRM PMD

[Nicolas Chautru]

This allows to exposes the flexible version of the poitwise
flexible operation being dynamically configured on the device.

Signed-off-by: Nicolas Chautru <nicolas.chau...@intel.com>
---
 drivers/baseband/acc/acc_common.h  |  1 +
 drivers/baseband/acc/rte_vrb_pmd.c | 22 ++++++++++++++++++++++
 2 files changed, 23 insertions(+)

diff --git a/drivers/baseband/acc/acc_common.h 
b/drivers/baseband/acc/acc_common.h
index 5bb00746c3..df18506e75 100644
--- a/drivers/baseband/acc/acc_common.h
+++ b/drivers/baseband/acc/acc_common.h
@@ -512,6 +512,7 @@ struct acc_deq_intr_details {
 enum {
        ACC_VF2PF_STATUS_REQUEST = 1,
        ACC_VF2PF_USING_VF = 2,
+       ACC_VF2PF_LUT_VER_REQUEST = 3,
 };
 
 
diff --git a/drivers/baseband/acc/rte_vrb_pmd.c 
b/drivers/baseband/acc/rte_vrb_pmd.c
index 9e5a73c9c7..3c8f3409ed 100644
--- a/drivers/baseband/acc/rte_vrb_pmd.c
+++ b/drivers/baseband/acc/rte_vrb_pmd.c
@@ -298,6 +298,27 @@ vrb_device_status(struct rte_bbdev *dev)
        return reg;
 }
 
+/* Request device FFT related version information. */
+static inline uint32_t
+vrb_device_fft_ver(struct rte_bbdev *dev)
+{
+       struct acc_device *d = dev->data->dev_private;
+       uint32_t reg, time_out = 0;
+
+       if (d->pf_device)
+               return 0;
+
+       vrb_vf2pf(d, ACC_VF2PF_LUT_VER_REQUEST);
+       reg = acc_reg_read(d, d->reg_addr->pf2vf_doorbell);
+       while ((time_out < ACC_STATUS_TO) && (reg == RTE_BBDEV_DEV_NOSTATUS)) {
+               usleep(ACC_STATUS_WAIT); /*< Wait or VF->PF->VF Comms */
+               reg = acc_reg_read(d, d->reg_addr->pf2vf_doorbell);
+               time_out++;
+       }
+
+       return reg;
+}
+
 /* Checks PF Info Ring to find the interrupt cause and handles it accordingly. 
*/
 static inline void
 vrb_check_ir(struct acc_device *acc_dev)
@@ -1100,6 +1121,7 @@ vrb_dev_info_get(struct rte_bbdev *dev, struct 
rte_bbdev_driver_info *dev_info)
        fetch_acc_config(dev);
        /* Check the status of device. */
        dev_info->device_status = vrb_device_status(dev);
+       dev_info->fft_version = vrb_device_fft_ver(dev);
 
        /* Exposed number of queues. */
        dev_info->num_queues[RTE_BBDEV_OP_NONE] = 0;
-- 
2.34.1