Adding upstream version 14.2.21.upstream/14.2.21upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 164 insertions, 0 deletions

diff --git a/src/seastar/dpdk/drivers/net/sfc/sfc_tx.h b/src/seastar/dpdk/drivers/net/sfc/sfc_tx.h
new file mode 100644
index 00000000..6c3ac3b6
--- /dev/null
+++ b/src/seastar/dpdk/drivers/net/sfc/sfc_tx.h
@@ -0,0 +1,164 @@
+/*-
+ *   BSD LICENSE
+ *
+ * Copyright (c) 2016-2017 Solarflare Communications Inc.
+ * All rights reserved.
+ *
+ * This software was jointly developed between OKTET Labs (under contract
+ * for Solarflare) and Solarflare Communications, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+ * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _SFC_TX_H
+#define _SFC_TX_H
+
+#include <rte_mbuf.h>
+#include <rte_ethdev.h>
+
+#include "efx.h"
+
+#include "sfc_dp_tx.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct sfc_adapter;
+struct sfc_evq;
+
+/**
+ * Software Tx descriptor information associated with hardware Tx
+ * descriptor.
+ */
+struct sfc_efx_tx_sw_desc {
+	struct rte_mbuf		*mbuf;
+	uint8_t			*tsoh;	/* Buffer to store TSO header */
+};
+
+enum sfc_txq_state_bit {
+	SFC_TXQ_INITIALIZED_BIT = 0,
+#define SFC_TXQ_INITIALIZED	(1 << SFC_TXQ_INITIALIZED_BIT)
+	SFC_TXQ_STARTED_BIT,
+#define SFC_TXQ_STARTED		(1 << SFC_TXQ_STARTED_BIT)
+	SFC_TXQ_FLUSHING_BIT,
+#define SFC_TXQ_FLUSHING	(1 << SFC_TXQ_FLUSHING_BIT)
+	SFC_TXQ_FLUSHED_BIT,
+#define SFC_TXQ_FLUSHED		(1 << SFC_TXQ_FLUSHED_BIT)
+};
+
+/**
+ * Transmit queue control information. Not used on datapath.
+ * Allocated on the socket specified on the queue setup.
+ */
+struct sfc_txq {
+	unsigned int			state;
+	unsigned int			hw_index;
+	struct sfc_evq			*evq;
+	efsys_mem_t			mem;
+	struct sfc_dp_txq		*dp;
+	efx_txq_t			*common;
+	unsigned int			free_thresh;
+	unsigned int			flags;
+};
+
+static inline unsigned int
+sfc_txq_sw_index_by_hw_index(unsigned int hw_index)
+{
+	return hw_index;
+}
+
+static inline unsigned int
+sfc_txq_sw_index(const struct sfc_txq *txq)
+{
+	return sfc_txq_sw_index_by_hw_index(txq->hw_index);
+}
+
+struct sfc_txq *sfc_txq_by_dp_txq(const struct sfc_dp_txq *dp_txq);
+
+/**
+ * Transmit queue information used on libefx-based data path.
+ * Allocated on the socket specified on the queue setup.
+ */
+struct sfc_efx_txq {
+	struct sfc_evq			*evq;
+	struct sfc_efx_tx_sw_desc	*sw_ring;
+	unsigned int			ptr_mask;
+	efx_desc_t			*pend_desc;
+	efx_txq_t			*common;
+	unsigned int			added;
+	unsigned int			pending;
+	unsigned int			completed;
+	unsigned int			free_thresh;
+	uint16_t			hw_vlan_tci;
+	uint16_t			dma_desc_size_max;
+
+	unsigned int			hw_index;
+	unsigned int			flags;
+#define SFC_EFX_TXQ_FLAG_STARTED	0x1
+#define SFC_EFX_TXQ_FLAG_RUNNING	0x2
+
+	/* Datapath transmit queue anchor */
+	struct sfc_dp_txq		dp;
+};
+
+static inline struct sfc_efx_txq *
+sfc_efx_txq_by_dp_txq(struct sfc_dp_txq *dp_txq)
+{
+	return container_of(dp_txq, struct sfc_efx_txq, dp);
+}
+
+struct sfc_txq_info {
+	unsigned int		entries;
+	struct sfc_txq		*txq;
+	boolean_t		deferred_start;
+	boolean_t		deferred_started;
+};
+
+int sfc_tx_configure(struct sfc_adapter *sa);
+void sfc_tx_close(struct sfc_adapter *sa);
+
+int sfc_tx_qinit(struct sfc_adapter *sa, unsigned int sw_index,
+		 uint16_t nb_tx_desc, unsigned int socket_id,
+		 const struct rte_eth_txconf *tx_conf);
+void sfc_tx_qfini(struct sfc_adapter *sa, unsigned int sw_index);
+
+void sfc_tx_qflush_done(struct sfc_txq *txq);
+int sfc_tx_qstart(struct sfc_adapter *sa, unsigned int sw_index);
+void sfc_tx_qstop(struct sfc_adapter *sa, unsigned int sw_index);
+int sfc_tx_start(struct sfc_adapter *sa);
+void sfc_tx_stop(struct sfc_adapter *sa);
+
+/* From 'sfc_tso.c' */
+int sfc_efx_tso_alloc_tsoh_objs(struct sfc_efx_tx_sw_desc *sw_ring,
+				unsigned int txq_entries,
+				unsigned int socket_id);
+void sfc_efx_tso_free_tsoh_objs(struct sfc_efx_tx_sw_desc *sw_ring,
+				unsigned int txq_entries);
+int sfc_efx_tso_do(struct sfc_efx_txq *txq, unsigned int idx,
+		   struct rte_mbuf **in_seg, size_t *in_off, efx_desc_t **pend,
+		   unsigned int *pkt_descs, size_t *pkt_len);
+
+#ifdef __cplusplus
+}
+#endif
+#endif	/* _SFC_TX_H */