New upstream version 17.11-rc3

Change-Id: I6a5baa40612fe0c20f30b5fa773a6cbbac63a685
Signed-off-by: Luca Boccassi <luca.boccassi@gmail.com>

1 files changed, 57 insertions, 1 deletions

diff --git a/drivers/net/sfc/sfc_tx.c b/drivers/net/sfc/sfc_tx.c
index fc439cb6..127d59e6 100644
--- a/drivers/net/sfc/sfc_tx.c
+++ b/drivers/net/sfc/sfc_tx.c
@@ -91,6 +91,21 @@ sfc_tx_qcheck_conf(struct sfc_adapter *sa, uint16_t nb_tx_desc,
 		rc = EINVAL;
 	}
 
+	if (((flags & ETH_TXQ_FLAGS_NOMULTMEMP) == 0) &&
+	    (~sa->dp_tx->features & SFC_DP_TX_FEAT_MULTI_POOL)) {
+		sfc_err(sa, "multi-mempool is not supported by %s datapath",
+			sa->dp_tx->dp.name);
+		rc = EINVAL;
+	}
+
+	if (((flags & ETH_TXQ_FLAGS_NOREFCOUNT) == 0) &&
+	    (~sa->dp_tx->features & SFC_DP_TX_FEAT_REFCNT)) {
+		sfc_err(sa,
+			"mbuf reference counters are neglected by %s datapath",
+			sa->dp_tx->dp.name);
+		rc = EINVAL;
+	}
+
 	if ((flags & ETH_TXQ_FLAGS_NOVLANOFFL) == 0) {
 		if (!encp->enc_hw_tx_insert_vlan_enabled) {
 			sfc_err(sa, "VLAN offload is not supported");
@@ -750,7 +765,7 @@ sfc_efx_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts)
 			size_t			seg_len;
 
 			seg_len = m_seg->data_len;
-			next_frag = rte_mbuf_data_dma_addr(m_seg);
+			next_frag = rte_mbuf_data_iova(m_seg);
 
 			/*
 			 * If we've started TSO transaction few steps earlier,
@@ -977,6 +992,44 @@ sfc_efx_tx_qreap(struct sfc_dp_txq *dp_txq)
 	txq->flags &= ~SFC_EFX_TXQ_FLAG_STARTED;
 }
 
+static sfc_dp_tx_qdesc_status_t sfc_efx_tx_qdesc_status;
+static int
+sfc_efx_tx_qdesc_status(struct sfc_dp_txq *dp_txq, uint16_t offset)
+{
+	struct sfc_efx_txq *txq = sfc_efx_txq_by_dp_txq(dp_txq);
+
+	if (unlikely(offset > txq->ptr_mask))
+		return -EINVAL;
+
+	if (unlikely(offset >= EFX_TXQ_LIMIT(txq->ptr_mask + 1)))
+		return RTE_ETH_TX_DESC_UNAVAIL;
+
+	/*
+	 * Poll EvQ to derive up-to-date 'txq->pending' figure;
+	 * it is required for the queue to be running, but the
+	 * check is omitted because API design assumes that it
+	 * is the duty of the caller to satisfy all conditions
+	 */
+	SFC_ASSERT((txq->flags & SFC_EFX_TXQ_FLAG_RUNNING) ==
+		   SFC_EFX_TXQ_FLAG_RUNNING);
+	sfc_ev_qpoll(txq->evq);
+
+	/*
+	 * Ring tail is 'txq->pending', and although descriptors
+	 * between 'txq->completed' and 'txq->pending' are still
+	 * in use by the driver, they should be reported as DONE
+	 */
+	if (unlikely(offset < (txq->added - txq->pending)))
+		return RTE_ETH_TX_DESC_FULL;
+
+	/*
+	 * There is no separate return value for unused descriptors;
+	 * the latter will be reported as DONE because genuine DONE
+	 * descriptors will be freed anyway in SW on the next burst
+	 */
+	return RTE_ETH_TX_DESC_DONE;
+}
+
 struct sfc_dp_tx sfc_efx_tx = {
 	.dp = {
 		.name		= SFC_KVARG_DATAPATH_EFX,
@@ -985,11 +1038,14 @@ struct sfc_dp_tx sfc_efx_tx = {
 	},
 	.features		= SFC_DP_TX_FEAT_VLAN_INSERT |
 				  SFC_DP_TX_FEAT_TSO |
+				  SFC_DP_TX_FEAT_MULTI_POOL |
+				  SFC_DP_TX_FEAT_REFCNT |
 				  SFC_DP_TX_FEAT_MULTI_SEG,
 	.qcreate		= sfc_efx_tx_qcreate,
 	.qdestroy		= sfc_efx_tx_qdestroy,
 	.qstart			= sfc_efx_tx_qstart,
 	.qstop			= sfc_efx_tx_qstop,
 	.qreap			= sfc_efx_tx_qreap,
+	.qdesc_status		= sfc_efx_tx_qdesc_status,
 	.pkt_burst		= sfc_efx_xmit_pkts,
 };