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

Add support to expose the device status seen from the
host through v2pf mailbox communication.

Signed-off-by: Nicolas Chautru <nicolas.chau...@intel.com>
---
 drivers/baseband/acc200/rte_acc200_pmd.c | 61 +++++++++++++++++++++++---------
 1 file changed, 44 insertions(+), 17 deletions(-)

diff --git a/drivers/baseband/acc200/rte_acc200_pmd.c 
b/drivers/baseband/acc200/rte_acc200_pmd.c
index 8fe5704..a969679 100644
--- a/drivers/baseband/acc200/rte_acc200_pmd.c
+++ b/drivers/baseband/acc200/rte_acc200_pmd.c
@@ -201,23 +201,47 @@
        rte_bbdev_log_debug(
                        "%s Config LLR SIGN IN/OUT %s %s QG %u %u %u %u %u AQ 
%u %u %u %u %u Len %u %u %u %u %u\n",
                        (d->pf_device) ? "PF" : "VF",
-                       (acc_conf->input_pos_llr_1_bit) ? "POS" : "NEG",
-                       (acc_conf->output_pos_llr_1_bit) ? "POS" : "NEG",
-                       acc_conf->q_ul_4g.num_qgroups,
-                       acc_conf->q_dl_4g.num_qgroups,
-                       acc_conf->q_ul_5g.num_qgroups,
-                       acc_conf->q_dl_5g.num_qgroups,
-                       acc_conf->q_fft.num_qgroups,
-                       acc_conf->q_ul_4g.num_aqs_per_groups,
-                       acc_conf->q_dl_4g.num_aqs_per_groups,
-                       acc_conf->q_ul_5g.num_aqs_per_groups,
-                       acc_conf->q_dl_5g.num_aqs_per_groups,
-                       acc_conf->q_fft.num_aqs_per_groups,
-                       acc_conf->q_ul_4g.aq_depth_log2,
-                       acc_conf->q_dl_4g.aq_depth_log2,
-                       acc_conf->q_ul_5g.aq_depth_log2,
-                       acc_conf->q_dl_5g.aq_depth_log2,
-                       acc_conf->q_fft.aq_depth_log2);
+                       (acc200_conf->input_pos_llr_1_bit) ? "POS" : "NEG",
+                       (acc200_conf->output_pos_llr_1_bit) ? "POS" : "NEG",
+                       acc200_conf->q_ul_4g.num_qgroups,
+                       acc200_conf->q_dl_4g.num_qgroups,
+                       acc200_conf->q_ul_5g.num_qgroups,
+                       acc200_conf->q_dl_5g.num_qgroups,
+                       acc200_conf->q_fft.num_qgroups,
+                       acc200_conf->q_ul_4g.num_aqs_per_groups,
+                       acc200_conf->q_dl_4g.num_aqs_per_groups,
+                       acc200_conf->q_ul_5g.num_aqs_per_groups,
+                       acc200_conf->q_dl_5g.num_aqs_per_groups,
+                       acc200_conf->q_fft.num_aqs_per_groups,
+                       acc200_conf->q_ul_4g.aq_depth_log2,
+                       acc200_conf->q_dl_4g.aq_depth_log2,
+                       acc200_conf->q_ul_5g.aq_depth_log2,
+                       acc200_conf->q_dl_5g.aq_depth_log2,
+                       acc200_conf->q_fft.aq_depth_log2);
+}
+
+static inline void
+acc200_vf2pf(struct acc_device *d, unsigned int payload)
+{
+       acc_reg_write(d, HWVfHiVfToPfDbellVf, payload);
+}
+
+/* Request device status information */
+static inline uint32_t
+acc200_device_status(struct rte_bbdev *dev)
+{
+       struct acc_device *d = dev->data->dev_private;
+       uint32_t reg, time_out = 0;
+       if (d->pf_device)
+               return RTE_BBDEV_DEV_NOT_SUPPORTED;
+       acc200_vf2pf(d, ACC_VF2PF_STATUS_REQUEST);
+       reg = acc_reg_read(d, HWVfHiPfToVfDbellVf);
+       while ((time_out < ACC200_STATUS_TO) && (reg == 
RTE_BBDEV_DEV_NOSTATUS)) {
+               usleep(ACC200_STATUS_WAIT); /*< Wait or VF->PF->VF Comms */
+               reg = acc_reg_read(d, HWVfHiPfToVfDbellVf);
+               time_out++;
+       }
+       return reg;
 }
 
 /* Checks PF Info Ring to find the interrupt cause and handles it accordingly 
*/
@@ -537,6 +561,7 @@
 
        /* Mark as configured properly */
        d->configured = true;
+       acc200_vf2pf(d, ACC_VF2PF_USING_VF);
 
        rte_bbdev_log_debug(
                        "ACC200 (%s) configured  sw_rings = %p, sw_rings_iova = 
%#"
@@ -1047,6 +1072,8 @@
 
        /* Read and save the populated config from ACC200 registers */
        fetch_acc200_config(dev);
+       /* Check the status of device */
+       dev_info->device_status = acc200_device_status(dev);
 
        /* Exposed number of queues */
        dev_info->num_queues[RTE_BBDEV_OP_NONE] = 0;
-- 
1.8.3.1

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