sdp_vf_disable_oq(sdpvf, q_no);
}
+static uint32_t
+sdp_vf_update_read_index(struct sdp_instr_queue *iq)
+{
+ uint32_t new_idx = rte_read32(iq->inst_cnt_reg);
+
+ /* The new instr cnt reg is a 32-bit counter that can roll over.
+ * We have noted the counter's initial value at init time into
+ * reset_instr_cnt
+ */
+ if (iq->reset_instr_cnt < new_idx)
+ new_idx -= iq->reset_instr_cnt;
+ else
+ new_idx += (0xffffffff - iq->reset_instr_cnt) + 1;
+
+ /* Modulo of the new index with the IQ size will give us
+ * the new index.
+ */
+ new_idx %= iq->nb_desc;
+
+ return new_idx;
+}
+
int
sdp_vf_setup_device(struct sdp_device *sdpvf)
{
sdpvf->fn_list.setup_oq_regs = sdp_vf_setup_oq_regs;
sdpvf->fn_list.setup_device_regs = sdp_vf_setup_device_regs;
+ sdpvf->fn_list.update_iq_read_idx = sdp_vf_update_read_index;
+
sdpvf->fn_list.enable_io_queues = sdp_vf_enable_io_queues;
sdpvf->fn_list.disable_io_queues = sdp_vf_disable_io_queues;