Add support to the fm10k driver for the API rte_eth_tx_done_cleanup
to force free consumed buffers on Tx ring.
Signed-off-by: Di ChenxuX <chenxux...@intel.com>
---
drivers/net/fm10k/fm10k.h | 2 ++
drivers/net/fm10k/fm10k_ethdev.c | 1 +
drivers/net/fm10k/fm10k_rxtx.c | 45 ++++++++++++++++++++++++++++++++
3 files changed, 48 insertions(+)
diff --git a/drivers/net/fm10k/fm10k.h b/drivers/net/fm10k/fm10k.h
index 916b856ac..ddb1d64ec 100644
--- a/drivers/net/fm10k/fm10k.h
+++ b/drivers/net/fm10k/fm10k.h
@@ -342,6 +342,8 @@ uint16_t fm10k_xmit_pkts(void *tx_queue, struct rte_mbuf
**tx_pkts,
uint16_t fm10k_prep_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
uint16_t nb_pkts);
+int fm10k_tx_done_cleanup(void *txq, uint32_t free_cnt);
+
int fm10k_rxq_vec_setup(struct fm10k_rx_queue *rxq);
int fm10k_rx_vec_condition_check(struct rte_eth_dev *);
void fm10k_rx_queue_release_mbufs_vec(struct fm10k_rx_queue *rxq);
diff --git a/drivers/net/fm10k/fm10k_ethdev.c b/drivers/net/fm10k/fm10k_ethdev.c
index db4d72129..328468185 100644
--- a/drivers/net/fm10k/fm10k_ethdev.c
+++ b/drivers/net/fm10k/fm10k_ethdev.c
@@ -2838,6 +2838,7 @@ static const struct eth_dev_ops fm10k_eth_dev_ops = {
.reta_query = fm10k_reta_query,
.rss_hash_update = fm10k_rss_hash_update,
.rss_hash_conf_get = fm10k_rss_hash_conf_get,
+ .tx_done_cleanup = fm10k_tx_done_cleanup,
};
static int ftag_check_handler(__rte_unused const char *key,
diff --git a/drivers/net/fm10k/fm10k_rxtx.c b/drivers/net/fm10k/fm10k_rxtx.c
index 5c3112183..f67c5bf00 100644
--- a/drivers/net/fm10k/fm10k_rxtx.c
+++ b/drivers/net/fm10k/fm10k_rxtx.c
@@ -541,6 +541,51 @@ static inline void tx_free_bulk_mbuf(struct rte_mbuf
**txep, int num)
}
}
+int fm10k_tx_done_cleanup(void *txq, uint32_t free_cnt)
+{
+ struct fm10k_tx_queue *q = (struct fm10k_tx_queue *)txq;
+ uint16_t next_rs, count = 0;
+
+ if (q == NULL)
+ return -ENODEV;
+
+ next_rs = fifo_peek(&q->rs_tracker);
+ if (!(q->hw_ring[next_rs].flags & FM10K_TXD_FLAG_DONE))
+ return count;
+
+ /* the DONE flag is set on this descriptor so remove the ID
+ * from the RS bit tracker and free the buffers
+ */
+ fifo_remove(&q->rs_tracker);
+
+ /* wrap around? if so, free buffers from last_free up to but NOT
+ * including nb_desc
+ */
+ if (q->last_free > next_rs) {
+ count = q->nb_desc - q->last_free;
+ tx_free_bulk_mbuf(&q->sw_ring[q->last_free], count);
+ q->last_free = 0;
+
+ if (unlikely(count == (int)free_cnt))
+ return count;
+ }
+
+ /* adjust free descriptor count before the next loop */
+ q->nb_free += count + (next_rs + 1 - q->last_free);
+
+ /* free buffers from last_free, up to and including next_rs */
+ if (q->last_free <= next_rs) {
+ count = next_rs - q->last_free + 1;
+ tx_free_bulk_mbuf(&q->sw_ring[q->last_free], count);
+ q->last_free += count;
+ }
+
+ if (q->last_free == q->nb_desc)
+ q->last_free = 0;
+
+ return count;
+}
+
static inline void tx_free_descriptors(struct fm10k_tx_queue *q)
{
uint16_t next_rs, count = 0;
--
2.17.1
