net/sfc: support Tx preparation in EFX datapath

[dpdk.git] / drivers / net / sfc / sfc_dp_tx.h

diff --git a/drivers/net/sfc/sfc_dp_tx.h b/drivers/net/sfc/sfc_dp_tx.h
index 9cb2198..885094b 100644 (file)
--- a/drivers/net/sfc/sfc_dp_tx.h
+++ b/drivers/net/sfc/sfc_dp_tx.h
@@ -13,6 +13,7 @@
 #include <rte_ethdev_driver.h>
 
 #include "sfc_dp.h"
+#include "sfc_debug.h"
 
 #ifdef __cplusplus
 extern "C" {
@@ -170,6 +171,7 @@ struct sfc_dp_tx {
        sfc_dp_tx_qtx_ev_t              *qtx_ev;
        sfc_dp_tx_qreap_t               *qreap;
        sfc_dp_tx_qdesc_status_t        *qdesc_status;
+       eth_tx_prep_t                   pkt_prepare;
        eth_tx_burst_t                  pkt_burst;
 };
 
@@ -192,6 +194,28 @@ sfc_dp_find_tx_by_caps(struct sfc_dp_list *head, unsigned int avail_caps)
 /** Get Tx datapath ops by the datapath TxQ handle */
 const struct sfc_dp_tx *sfc_dp_tx_by_dp_txq(const struct sfc_dp_txq *dp_txq);
 
+static inline int
+sfc_dp_tx_prepare_pkt(struct rte_mbuf *m)
+{
+#ifdef RTE_LIBRTE_SFC_EFX_DEBUG
+       int ret;
+
+       ret = rte_validate_tx_offload(m);
+       if (ret != 0) {
+               /*
+                * Negative error code is returned by rte_validate_tx_offload(),
+                * but positive are used inside net/sfc PMD.
+                */
+               SFC_ASSERT(ret < 0);
+               return -ret;
+       }
+#else
+       RTE_SET_USED(m);
+#endif
+
+       return 0;
+}
+
 extern struct sfc_dp_tx sfc_efx_tx;
 extern struct sfc_dp_tx sfc_ef10_tx;
 extern struct sfc_dp_tx sfc_ef10_simple_tx;