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baseband/acc200: add device status and VF2PF communication

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

Signed-off-by: Nicolas Chautru <nicolas.chautru@intel.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
This commit is contained in:
Nicolas Chautru 2022-10-12 10:59:26 -07:00 committed by Akhil Goyal
parent 3cabc8eaf5
commit a2ee515fdb
1 changed files with 30 additions and 0 deletions
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30
drivers/baseband/acc/rte_acc200_pmd.c
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@ -211,6 +211,33 @@ fetch_acc200_config(struct rte_bbdev *dev)
acc_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. */
static inline void
acc200_check_ir(struct acc_device *acc200_dev)
@ -484,6 +511,7 @@ acc200_setup_queues(struct rte_bbdev *dev, uint16_t num_queues, int socket_id)
/* 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 = %#"
@ -1011,6 +1039,8 @@ acc200_dev_info_get(struct rte_bbdev *dev,
/* 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;