Add rawdev dequeue operation for zxdh devices.
Signed-off-by: Yong Zhang <zhang.yong25@zte.com.cn>
---
drivers/raw/zxdh/zxdh_rawdev.c | 113 +++++++++++++++++++++++++++++++++
1 file changed, 113 insertions(+)
diff --git a/drivers/raw/zxdh/zxdh_rawdev.c b/drivers/raw/zxdh/zxdh_rawdev.c
index 76b8f7f728..2019bd3704 100644
--- a/drivers/raw/zxdh/zxdh_rawdev.c
+++ b/drivers/raw/zxdh/zxdh_rawdev.c
@@ -96,6 +96,8 @@
#define LOW32_MASK 0xffffffff
#define LOW16_MASK 0xffff
+#define ZXDH_GDMA_TC_CNT_MAX 0x10000
+
#define IDX_TO_ADDR(addr, idx, t) \
((t)((uintptr_t)(addr) + (idx) * sizeof(struct zxdh_gdma_buff_desc)))
@@ -534,6 +536,116 @@ zxdh_gdma_rawdev_enqueue_bufs(struct rte_rawdev *dev,
return count;
}
+
+static inline void
+zxdh_gdma_used_idx_update(struct zxdh_gdma_queue *queue, uint16_t cnt, uint8_t data_bd_err)
+{
+ uint16_t idx = 0;
+
+ if (queue->sw_ring.used_idx + cnt < queue->queue_size)
+ queue->sw_ring.used_idx += cnt;
+ else
+ queue->sw_ring.used_idx = queue->sw_ring.used_idx + cnt - queue->queue_size;
+
+ if (data_bd_err == 1) {
+ /* Update job status, the last job status is error */
+ if (queue->sw_ring.used_idx == 0)
+ idx = queue->queue_size - 1;
+ else
+ idx = queue->sw_ring.used_idx - 1;
+
+ queue->sw_ring.job[idx]->status = 1;
+ }
+}
+
+static int
+zxdh_gdma_rawdev_dequeue_bufs(struct rte_rawdev *dev,
+ __rte_unused struct rte_rawdev_buf **buffers,
+ uint count,
+ rte_rawdev_obj_t context)
+{
+ struct zxdh_gdma_queue *queue = NULL;
+ struct zxdh_gdma_enqdeq *e_context = NULL;
+ uint16_t queue_id = 0;
+ uint val = 0;
+ uint16_t tc_cnt = 0;
+ uint16_t diff_cnt = 0;
+ uint16_t i = 0;
+ uint16_t bd_idx = 0;
+ uint64_t next_bd_addr = 0;
+ uint8_t data_bd_err = 0;
+
+ if ((dev == NULL) || (context == NULL))
+ return -EINVAL;
+
+ e_context = (struct zxdh_gdma_enqdeq *)context;
+ queue_id = e_context->vq_id;
+ queue = zxdh_gdma_get_queue(dev, queue_id);
+ if ((queue == NULL) || (queue->enable == 0))
+ return -EINVAL;
+
+ if (queue->sw_ring.pend_cnt == 0)
+ goto deq_job;
+
+ /* Get data transmit count */
+ val = zxdh_gdma_read_reg(dev, queue_id, ZXDH_GDMA_TC_CNT_OFFSET);
+ tc_cnt = val & LOW16_MASK;
+ if (tc_cnt >= queue->tc_cnt)
+ diff_cnt = tc_cnt - queue->tc_cnt;
+ else
+ diff_cnt = tc_cnt + ZXDH_GDMA_TC_CNT_MAX - queue->tc_cnt;
+
+ queue->tc_cnt = tc_cnt;
+
+ /* Data transmit error, channel stopped */
+ if ((val & ZXDH_GDMA_ERR_STATUS) != 0) {
+ next_bd_addr = zxdh_gdma_read_reg(dev, queue_id, ZXDH_GDMA_LLI_L_OFFSET);
+ next_bd_addr |= ((uint64_t)zxdh_gdma_read_reg(dev, queue_id,
+ ZXDH_GDMA_LLI_H_OFFSET) << 32);
+ next_bd_addr = next_bd_addr << 6;
+ bd_idx = (next_bd_addr - queue->ring.ring_mem) / sizeof(struct zxdh_gdma_buff_desc);
+ if ((val & ZXDH_GDMA_SRC_DATA_ERR) || (val & ZXDH_GDMA_DST_ADDR_ERR)) {
+ diff_cnt++;
+ data_bd_err = 1;
+ }
+ ZXDH_PMD_LOG(INFO, "queue%d is err(0x%x) next_bd_idx:%u ll_addr:0x%"PRIx64" def user:0x%x",
+ queue_id, val, bd_idx, next_bd_addr, queue->user);
+
+ ZXDH_PMD_LOG(INFO, "Clean up error status");
+ val = ZXDH_GDMA_ERR_STATUS | ZXDH_GDMA_ERR_INTR_ENABLE;
+ zxdh_gdma_write_reg(dev, queue_id, ZXDH_GDMA_TC_CNT_OFFSET, val);
+
+ ZXDH_PMD_LOG(INFO, "Restart channel");
+ zxdh_gdma_write_reg(dev, queue_id, ZXDH_GDMA_XFERSIZE_OFFSET, 0);
+ zxdh_gdma_control_cal(&val, 0);
+ zxdh_gdma_write_reg(dev, queue_id, ZXDH_GDMA_CONTROL_OFFSET, val);
+ }
+
+ if (diff_cnt != 0) {
+ zxdh_gdma_used_idx_update(queue, diff_cnt, data_bd_err);
+ queue->sw_ring.deq_cnt += diff_cnt;
+ queue->sw_ring.pend_cnt -= diff_cnt;
+ }
+
+deq_job:
+ if (queue->sw_ring.deq_cnt == 0)
+ return 0;
+ else if (queue->sw_ring.deq_cnt < count)
+ count = queue->sw_ring.deq_cnt;
+
+ queue->sw_ring.deq_cnt -= count;
+
+ for (i = 0; i < count; i++) {
+ e_context->job[i] = queue->sw_ring.job[queue->sw_ring.deq_idx];
+ queue->sw_ring.job[queue->sw_ring.deq_idx] = NULL;
+ if (++queue->sw_ring.deq_idx >= queue->queue_size)
+ queue->sw_ring.deq_idx -= queue->queue_size;
+ }
+ queue->sw_ring.free_cnt += count;
+
+ return count;
+}
+
static const struct rte_rawdev_ops zxdh_gdma_rawdev_ops = {
.dev_info_get = zxdh_gdma_rawdev_info_get,
.dev_configure = zxdh_gdma_rawdev_configure,
@@ -548,6 +660,7 @@ static const struct rte_rawdev_ops zxdh_gdma_rawdev_ops = {
.attr_get = zxdh_gdma_rawdev_get_attr,
.enqueue_bufs = zxdh_gdma_rawdev_enqueue_bufs,
+ .dequeue_bufs = zxdh_gdma_rawdev_dequeue_bufs,
};
static int
--
2.43.0