New upstream version 18.08

[deb_dpdk.git] / drivers / net / netvsc / hn_var.h

diff --git a/drivers/net/netvsc/hn_var.h b/drivers/net/netvsc/hn_var.h
new file mode 100644 (file)
index 0000000..f7ff858
--- /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);