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path: root/drivers/net/octeontx2/otx2_ethdev_ops.c
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Diffstat (limited to 'drivers/net/octeontx2/otx2_ethdev_ops.c')
-rw-r--r--drivers/net/octeontx2/otx2_ethdev_ops.c38
1 files changed, 37 insertions, 1 deletions
diff --git a/drivers/net/octeontx2/otx2_ethdev_ops.c b/drivers/net/octeontx2/otx2_ethdev_ops.c
index 26eef6b..fc0fbd9 100644
--- a/drivers/net/octeontx2/otx2_ethdev_ops.c
+++ b/drivers/net/octeontx2/otx2_ethdev_ops.c
@@ -282,7 +282,7 @@ otx2_nix_rx_descriptor_status(void *rx_queue, uint16_t offset)
struct otx2_eth_rxq *rxq = rx_queue;
uint32_t head, tail;
- if (rxq->qlen >= offset)
+ if (rxq->qlen <= offset)
return -EINVAL;
nix_rx_head_tail_get(otx2_eth_pmd_priv(rxq->eth_dev),
@@ -294,6 +294,42 @@ otx2_nix_rx_descriptor_status(void *rx_queue, uint16_t offset)
return RTE_ETH_RX_DESC_AVAIL;
}
+static void
+nix_tx_head_tail_get(struct otx2_eth_dev *dev,
+ uint32_t *head, uint32_t *tail, uint16_t queue_idx)
+{
+ uint64_t reg, val;
+
+ if (head == NULL || tail == NULL)
+ return;
+
+ reg = (((uint64_t)queue_idx) << 32);
+ val = otx2_atomic64_add_nosync(reg, (int64_t *)
+ (dev->base + NIX_LF_SQ_OP_STATUS));
+ if (val & OP_ERR)
+ val = 0;
+
+ *tail = (uint32_t)((val >> 28) & 0x3F);
+ *head = (uint32_t)((val >> 20) & 0x3F);
+}
+
+int
+otx2_nix_tx_descriptor_status(void *tx_queue, uint16_t offset)
+{
+ struct otx2_eth_txq *txq = tx_queue;
+ uint32_t head, tail;
+
+ if (txq->qconf.nb_desc <= offset)
+ return -EINVAL;
+
+ nix_tx_head_tail_get(txq->dev, &head, &tail, txq->sq);
+
+ if (nix_offset_has_packet(head, tail, offset))
+ return RTE_ETH_TX_DESC_DONE;
+ else
+ return RTE_ETH_TX_DESC_FULL;
+}
+
/* It is a NOP for octeontx2 as HW frees the buffer on xmit */
int
otx2_nix_tx_done_cleanup(void *txq, uint32_t free_cnt)