New upstream version 18.08upstream/18.08

Change-Id: I32fdf5e5016556d9c0a6d88ddaf1fc468961790a
Signed-off-by: Luca Boccassi <luca.boccassi@gmail.com>

1 files changed, 158 insertions, 0 deletions

diff --git a/drivers/net/netvsc/hn_var.h b/drivers/net/netvsc/hn_var.h
new file mode 100644
index 00000000..f7ff8585
--- /dev/null
+++ b/drivers/net/netvsc/hn_var.h
@@ -0,0 +1,158 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright (c) 2009-2018 Microsoft Corp.
+ * Copyright (c) 2016 Brocade Communications Systems, Inc.
+ * Copyright (c) 2012 NetApp Inc.
+ * Copyright (c) 2012 Citrix Inc.
+ * All rights reserved.
+ */
+
+/*
+ * Tunable ethdev params
+ */
+#define HN_MIN_RX_BUF_SIZE	1024
+#define HN_MAX_XFER_LEN		2048
+#define	HN_MAX_MAC_ADDRS	1
+#define HN_MAX_CHANNELS		64
+
+/* Claimed to be 12232B */
+#define HN_MTU_MAX		(9 * 1024)
+
+/* Retry interval */
+#define HN_CHAN_INTERVAL_US	100
+
+/* Buffers need to be aligned */
+#ifndef PAGE_SIZE
+#define PAGE_SIZE 4096
+#endif
+
+#ifndef PAGE_MASK
+#define PAGE_MASK (PAGE_SIZE - 1)
+#endif
+
+struct hn_data;
+struct hn_txdesc;
+
+struct hn_stats {
+	uint64_t	packets;
+	uint64_t	bytes;
+	uint64_t	errors;
+	uint64_t	nomemory;
+	uint64_t	multicast;
+	uint64_t	broadcast;
+	/* Size bins in array as RFC 2819, undersized [0], 64 [1], etc */
+	uint64_t	size_bins[8];
+};
+
+struct hn_tx_queue {
+	struct hn_data  *hv;
+	struct vmbus_channel *chan;
+	uint16_t	port_id;
+	uint16_t	queue_id;
+	uint32_t	free_thresh;
+
+	/* Applied packet transmission aggregation limits. */
+	uint32_t	agg_szmax;
+	uint32_t	agg_pktmax;
+	uint32_t	agg_align;
+
+	/* Packet transmission aggregation states */
+	struct hn_txdesc *agg_txd;
+	uint32_t	agg_pktleft;
+	uint32_t	agg_szleft;
+	struct rndis_packet_msg *agg_prevpkt;
+
+	struct hn_stats stats;
+};
+
+struct hn_rx_queue {
+	struct hn_data  *hv;
+	struct vmbus_channel *chan;
+	struct rte_mempool *mb_pool;
+	struct rte_ring *rx_ring;
+
+	rte_spinlock_t ring_lock;
+	uint32_t event_sz;
+	uint16_t port_id;
+	uint16_t queue_id;
+	struct hn_stats stats;
+	uint64_t ring_full;
+
+	uint8_t	event_buf[];
+};
+
+
+/* multi-packet data from host */
+struct hn_rx_bufinfo {
+	struct vmbus_channel *chan;
+	struct hn_data *hv;
+	uint64_t	xactid;
+	struct rte_mbuf_ext_shared_info shinfo;
+} __rte_cache_aligned;
+
+struct hn_data {
+	struct rte_vmbus_device *vmbus;
+	struct hn_rx_queue *primary;
+	uint16_t	port_id;
+	bool		closed;
+	uint32_t	link_status;
+	uint32_t	link_speed;
+
+	struct rte_mem_resource *rxbuf_res;	/* UIO resource for Rx */
+	struct hn_rx_bufinfo *rxbuf_info;
+	uint32_t	rxbuf_section_cnt;	/* # of Rx sections */
+	volatile uint32_t rxbuf_outstanding;
+	uint16_t	max_queues;		/* Max available queues */
+	uint16_t	num_queues;
+	uint64_t	rss_offloads;
+
+	struct rte_mem_resource *chim_res;	/* UIO resource for Tx */
+	struct rte_mempool *tx_pool;		/* Tx descriptors */
+	uint32_t	chim_szmax;		/* Max size per buffer */
+	uint32_t	chim_cnt;		/* Max packets per buffer */
+
+	uint32_t	nvs_ver;
+	uint32_t	ndis_ver;
+	uint32_t	rndis_agg_size;
+	uint32_t	rndis_agg_pkts;
+	uint32_t	rndis_agg_align;
+
+	volatile uint32_t  rndis_pending;
+	rte_atomic32_t	rndis_req_id;
+	uint8_t		rndis_resp[256];
+
+	struct ether_addr mac_addr;
+	struct vmbus_channel *channels[HN_MAX_CHANNELS];
+};
+
+static inline struct vmbus_channel *
+hn_primary_chan(const struct hn_data *hv)
+{
+	return hv->channels[0];
+}
+
+void hn_process_events(struct hn_data *hv, uint16_t queue_id);
+
+uint16_t hn_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
+		      uint16_t nb_pkts);
+uint16_t hn_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
+		      uint16_t nb_pkts);
+
+int	hn_tx_pool_init(struct rte_eth_dev *dev);
+int	hn_dev_tx_queue_setup(struct rte_eth_dev *dev, uint16_t queue_idx,
+			      uint16_t nb_desc, unsigned int socket_id,
+			      const struct rte_eth_txconf *tx_conf);
+void	hn_dev_tx_queue_release(void *arg);
+void	hn_dev_tx_queue_info(struct rte_eth_dev *dev, uint16_t queue_idx,
+			     struct rte_eth_txq_info *qinfo);
+
+struct hn_rx_queue *hn_rx_queue_alloc(struct hn_data *hv,
+				      uint16_t queue_id,
+				      unsigned int socket_id);
+int	hn_dev_rx_queue_setup(struct rte_eth_dev *dev,
+			      uint16_t queue_idx, uint16_t nb_desc,
+			      unsigned int socket_id,
+			      const struct rte_eth_rxconf *rx_conf,
+			      struct rte_mempool *mp);
+void	hn_dev_rx_queue_release(void *arg);
+void	hn_dev_rx_queue_info(struct rte_eth_dev *dev, uint16_t queue_idx,
+			     struct rte_eth_rxq_info *qinfo);