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 | 28 ++++++++++++++++++++++++++++
1 file changed, 28 insertions(+)
diff --git a/drivers/baseband/acc200/rte_acc200_pmd.c
b/drivers/baseband/acc200/rte_acc200_pmd.c
index ecfbc7a..856ea1c 100644
--- a/drivers/baseband/acc200/rte_acc200_pmd.c
+++ b/drivers/baseband/acc200/rte_acc200_pmd.c
@@ -262,6 +262,31 @@
acc200_conf->q_fft.aq_depth_log2);
}
+static inline void
+acc200_vf2pf(struct acc200_device *d, unsigned int payload)
+{
+ acc200_reg_write(d, HWVfHiVfToPfDbellVf, payload);
+}
+
+/* Request device status information */
+static inline uint32_t
+acc200_device_status(struct rte_bbdev *dev)
+{
+ struct acc200_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, ACC200_VF2PF_STATUS_REQUEST);
+ reg = acc200_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 = acc200_reg_read(d, HWVfHiPfToVfDbellVf);
+ time_out++;
+ }
+ /* printf("DevStatus %x %s %d\n", reg,
rte_bbdev_device_status_str(reg), time_out); */
+ return reg;
+}
+
static void
free_base_addresses(void **base_addrs, int size)
{
@@ -704,6 +729,7 @@
/* Mark as configured properly */
d->configured = true;
+ acc200_vf2pf(d, ACC200_VF2PF_USING_VF);
rte_bbdev_log_debug(
"ACC200 (%s) configured sw_rings = %p, sw_rings_iova =
%#"
@@ -1214,6 +1240,8 @@
/* 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
