* Copyright(c) 2019 Intel Corporation.
*/
-#ifndef _NTB_RAWDEV_H_
-#define _NTB_RAWDEV_H_
+#ifndef _NTB_H_
+#define _NTB_H_
#include <stdbool.h>
/* Device IDs */
#define NTB_INTEL_DEV_ID_B2B_SKX 0x201C
-#define NTB_TOPO_NAME "topo"
-#define NTB_LINK_STATUS_NAME "link_status"
-#define NTB_SPEED_NAME "speed"
-#define NTB_WIDTH_NAME "width"
-#define NTB_MW_CNT_NAME "mw_count"
-#define NTB_DB_CNT_NAME "db_count"
-#define NTB_SPAD_CNT_NAME "spad_count"
/* Reserved to app to use. */
#define NTB_SPAD_USER "spad_user_"
#define NTB_SPAD_USER_LEN (sizeof(NTB_SPAD_USER) - 1)
-#define NTB_SPAD_USER_MAX_NUM 10
+#define NTB_SPAD_USER_MAX_NUM 4
#define NTB_ATTR_NAME_LEN 30
-#define NTB_ATTR_VAL_LEN 30
-#define NTB_ATTR_MAX 20
-
-/* NTB Attributes */
-struct ntb_attr {
- /**< Name of the attribute */
- char name[NTB_ATTR_NAME_LEN];
- /**< Value or reference of value of attribute */
- char value[NTB_ATTR_NAME_LEN];
-};
-enum ntb_attr_idx {
- NTB_TOPO_ID = 0,
- NTB_LINK_STATUS_ID,
- NTB_SPEED_ID,
- NTB_WIDTH_ID,
- NTB_MW_CNT_ID,
- NTB_DB_CNT_ID,
- NTB_SPAD_CNT_ID,
+#define NTB_DFLT_TX_FREE_THRESH 256
+
+enum ntb_xstats_idx {
+ NTB_TX_PKTS_ID = 0,
+ NTB_TX_BYTES_ID,
+ NTB_TX_ERRS_ID,
+ NTB_RX_PKTS_ID,
+ NTB_RX_BYTES_ID,
+ NTB_RX_MISS_ID,
};
enum ntb_topo {
SPAD_NUM_MWS = 1,
SPAD_NUM_QPS,
SPAD_Q_SZ,
+ SPAD_USED_MWS,
SPAD_MW0_SZ_H,
SPAD_MW0_SZ_L,
SPAD_MW1_SZ_H,
SPAD_MW1_SZ_L,
+ SPAD_MW0_BA_H,
+ SPAD_MW0_BA_L,
+ SPAD_MW1_BA_H,
+ SPAD_MW1_BA_L,
};
/**
* @ntb_dev_init: Init ntb dev.
* @get_peer_mw_addr: To get the addr of peer mw[mw_idx].
* @mw_set_trans: Set translation of internal memory that remote can access.
+ * @ioremap: Translate the remote host address to bar address.
* @get_link_status: get link status, link speed and link width.
* @set_link: Set local side up/down.
* @spad_read: Read local/peer spad register val.
* @vector_bind: Bind vector source [intr] to msix vector [msix].
*/
struct ntb_dev_ops {
- int (*ntb_dev_init)(struct rte_rawdev *dev);
- void *(*get_peer_mw_addr)(struct rte_rawdev *dev, int mw_idx);
- int (*mw_set_trans)(struct rte_rawdev *dev, int mw_idx,
+ int (*ntb_dev_init)(const struct rte_rawdev *dev);
+ void *(*get_peer_mw_addr)(const struct rte_rawdev *dev, int mw_idx);
+ int (*mw_set_trans)(const struct rte_rawdev *dev, int mw_idx,
uint64_t addr, uint64_t size);
- int (*get_link_status)(struct rte_rawdev *dev);
- int (*set_link)(struct rte_rawdev *dev, bool up);
- uint32_t (*spad_read)(struct rte_rawdev *dev, int spad, bool peer);
- int (*spad_write)(struct rte_rawdev *dev, int spad,
+ void *(*ioremap)(const struct rte_rawdev *dev, uint64_t addr);
+ int (*get_link_status)(const struct rte_rawdev *dev);
+ int (*set_link)(const struct rte_rawdev *dev, bool up);
+ uint32_t (*spad_read)(const struct rte_rawdev *dev, int spad,
+ bool peer);
+ int (*spad_write)(const struct rte_rawdev *dev, int spad,
bool peer, uint32_t spad_v);
- uint64_t (*db_read)(struct rte_rawdev *dev);
- int (*db_clear)(struct rte_rawdev *dev, uint64_t db_bits);
- int (*db_set_mask)(struct rte_rawdev *dev, uint64_t db_mask);
- int (*peer_db_set)(struct rte_rawdev *dev, uint8_t db_bit);
- int (*vector_bind)(struct rte_rawdev *dev, uint8_t intr, uint8_t msix);
+ uint64_t (*db_read)(const struct rte_rawdev *dev);
+ int (*db_clear)(const struct rte_rawdev *dev, uint64_t db_bits);
+ int (*db_set_mask)(const struct rte_rawdev *dev, uint64_t db_mask);
+ int (*peer_db_set)(const struct rte_rawdev *dev, uint8_t db_bit);
+ int (*vector_bind)(const struct rte_rawdev *dev, uint8_t intr,
+ uint8_t msix);
+};
+
+struct ntb_desc {
+ uint64_t addr; /* buffer addr */
+ uint16_t len; /* buffer length */
+ uint16_t rsv1;
+ uint32_t rsv2;
+};
+
+#define NTB_FLAG_EOP 1 /* end of packet */
+struct ntb_used {
+ uint16_t len; /* buffer length */
+ uint16_t flags; /* flags */
+};
+
+struct ntb_rx_entry {
+ struct rte_mbuf *mbuf;
+};
+
+struct ntb_rx_queue {
+ struct ntb_desc *rx_desc_ring;
+ volatile struct ntb_used *rx_used_ring;
+ uint16_t *avail_cnt;
+ volatile uint16_t *used_cnt;
+ uint16_t last_avail;
+ uint16_t last_used;
+ uint16_t nb_rx_desc;
+
+ uint16_t rx_free_thresh;
+
+ struct rte_mempool *mpool; /* mempool for mbuf allocation */
+ struct ntb_rx_entry *sw_ring;
+
+ uint16_t queue_id; /* DPDK queue index. */
+ uint16_t port_id; /* Device port identifier. */
+
+ struct ntb_hw *hw;
+};
+
+struct ntb_tx_entry {
+ struct rte_mbuf *mbuf;
+ uint16_t next_id;
+ uint16_t last_id;
+};
+
+struct ntb_tx_queue {
+ volatile struct ntb_desc *tx_desc_ring;
+ struct ntb_used *tx_used_ring;
+ volatile uint16_t *avail_cnt;
+ uint16_t *used_cnt;
+ uint16_t last_avail; /* Next need to be free. */
+ uint16_t last_used; /* Next need to be sent. */
+ uint16_t nb_tx_desc;
+
+ /* Total number of TX descriptors ready to be allocated. */
+ uint16_t nb_tx_free;
+ uint16_t tx_free_thresh;
+
+ struct ntb_tx_entry *sw_ring;
+
+ uint16_t queue_id; /* DPDK queue index. */
+ uint16_t port_id; /* Device port identifier. */
+
+ struct ntb_hw *hw;
+};
+
+struct ntb_header {
+ uint16_t avail_cnt __rte_cache_aligned;
+ uint16_t used_cnt __rte_cache_aligned;
+ struct ntb_desc desc_ring[] __rte_cache_aligned;
};
/* ntb private data. */
struct ntb_hw {
uint8_t mw_cnt;
- uint8_t peer_mw_cnt;
uint8_t db_cnt;
uint8_t spad_cnt;
struct rte_pci_device *pci_dev;
char *hw_addr;
- uint64_t *mw_size;
- uint64_t *peer_mw_size;
uint8_t peer_dev_up;
+ uint64_t *mw_size;
+ /* remote mem base addr */
+ uint64_t *peer_mw_base;
uint16_t queue_pairs;
uint16_t queue_size;
+ uint32_t hdr_size_per_queue;
- /**< mem zone to populate RX ring. */
+ struct ntb_rx_queue **rx_queues;
+ struct ntb_tx_queue **tx_queues;
+
+ /* memzone to populate RX ring. */
const struct rte_memzone **mz;
+ uint8_t used_mw_num;
+
+ uint8_t peer_used_mws;
+
+ uint64_t *ntb_xstats;
+ uint64_t *ntb_xstats_off;
/* Reserve several spad for app to use. */
int spad_user_list[NTB_SPAD_USER_MAX_NUM];
};
-#endif /* _NTB_RAWDEV_H_ */
+#endif /* _NTB_H_ */
git.droids-corp.org / dpdk.git / blobdiff