/*-
* BSD LICENSE
*
- * Copyright 2012-2015 6WIND S.A.
- * Copyright 2012 Mellanox.
+ * Copyright 2012 6WIND S.A.
+ * Copyright 2012 Mellanox
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
#ifndef RTE_PMD_MLX4_H_
#define RTE_PMD_MLX4_H_
-#include <stddef.h>
#include <stdint.h>
-#include <limits.h>
-/*
- * Maximum number of simultaneous MAC addresses supported.
- *
- * According to ConnectX's Programmer Reference Manual:
- * The L2 Address Match is implemented by comparing a MAC/VLAN combination
- * of 128 MAC addresses and 127 VLAN values, comprising 128x127 possible
- * L2 addresses.
- */
-#define MLX4_MAX_MAC_ADDRESSES 128
+/* Verbs header. */
+/* ISO C doesn't support unnamed structs/unions, disabling -pedantic. */
+#ifdef PEDANTIC
+#pragma GCC diagnostic ignored "-Wpedantic"
+#endif
+#include <infiniband/verbs.h>
+#ifdef PEDANTIC
+#pragma GCC diagnostic error "-Wpedantic"
+#endif
-/* Maximum number of simultaneous VLAN filters supported. See above. */
-#define MLX4_MAX_VLAN_IDS 127
+#include <rte_ethdev.h>
+#include <rte_ether.h>
+#include <rte_interrupts.h>
-/* Maximum number of Scatter/Gather Elements per Work Request. */
-#ifndef MLX4_PMD_SGE_WR_N
-#define MLX4_PMD_SGE_WR_N 4
-#endif
+/* Request send completion once in every 64 sends, might be less. */
+#define MLX4_PMD_TX_PER_COMP_REQ 64
/* Maximum size for inline data. */
-#ifndef MLX4_PMD_MAX_INLINE
#define MLX4_PMD_MAX_INLINE 0
-#endif
/*
* Maximum number of cached Memory Pools (MPs) per TX queue. Each RTE MP
#define MLX4_PMD_TX_MP_CACHE 8
#endif
-/*
- * If defined, only use software counters. The PMD will never ask the hardware
- * for these, and many of them won't be available.
- */
-#ifndef MLX4_PMD_SOFT_COUNTERS
-#define MLX4_PMD_SOFT_COUNTERS 1
-#endif
+/* Interrupt alarm timeout value in microseconds. */
+#define MLX4_INTR_ALARM_TIMEOUT 100000
+
+/* Port parameter. */
+#define MLX4_PMD_PORT_KVARG "port"
enum {
PCI_VENDOR_ID_MELLANOX = 0x15b3,
PCI_DEVICE_ID_MELLANOX_CONNECTX3PRO = 0x1007,
};
-#define MLX4_DRIVER_NAME "librte_pmd_mlx4"
-
-/* Bit-field manipulation. */
-#define BITFIELD_DECLARE(bf, type, size) \
- type bf[(((size_t)(size) / (sizeof(type) * CHAR_BIT)) + \
- !!((size_t)(size) % (sizeof(type) * CHAR_BIT)))]
-#define BITFIELD_DEFINE(bf, type, size) \
- BITFIELD_DECLARE((bf), type, (size)) = { 0 }
-#define BITFIELD_SET(bf, b) \
- (assert((size_t)(b) < (sizeof(bf) * CHAR_BIT)), \
- (void)((bf)[((b) / (sizeof((bf)[0]) * CHAR_BIT))] |= \
- ((size_t)1 << ((b) % (sizeof((bf)[0]) * CHAR_BIT)))))
-#define BITFIELD_RESET(bf, b) \
- (assert((size_t)(b) < (sizeof(bf) * CHAR_BIT)), \
- (void)((bf)[((b) / (sizeof((bf)[0]) * CHAR_BIT))] &= \
- ~((size_t)1 << ((b) % (sizeof((bf)[0]) * CHAR_BIT)))))
-#define BITFIELD_ISSET(bf, b) \
- (assert((size_t)(b) < (sizeof(bf) * CHAR_BIT)), \
- !!(((bf)[((b) / (sizeof((bf)[0]) * CHAR_BIT))] & \
- ((size_t)1 << ((b) % (sizeof((bf)[0]) * CHAR_BIT))))))
-
-/* Number of elements in array. */
-#define elemof(a) (sizeof(a) / sizeof((a)[0]))
-
-/* Cast pointer p to structure member m to its parent structure of type t. */
-#define containerof(p, t, m) ((t *)((uint8_t *)(p) - offsetof(t, m)))
-
-/* Branch prediction helpers. */
-#ifndef likely
-#define likely(c) __builtin_expect(!!(c), 1)
-#endif
-#ifndef unlikely
-#define unlikely(c) __builtin_expect(!!(c), 0)
-#endif
+#define MLX4_DRIVER_NAME "net_mlx4"
+
+struct rxq;
+struct txq;
+struct rte_flow;
+
+struct priv {
+ struct rte_eth_dev *dev; /* Ethernet device. */
+ struct ibv_context *ctx; /* Verbs context. */
+ struct ibv_device_attr device_attr; /* Device properties. */
+ struct ibv_pd *pd; /* Protection Domain. */
+ struct ether_addr mac; /* MAC address. */
+ struct ibv_flow *mac_flow; /* Flow associated with MAC address. */
+ /* Device properties. */
+ uint16_t mtu; /* Configured MTU. */
+ uint8_t port; /* Physical port number. */
+ unsigned int started:1; /* Device started, flows enabled. */
+ unsigned int vf:1; /* This is a VF device. */
+ unsigned int intr_alarm:1; /* An interrupt alarm is scheduled. */
+ unsigned int isolated:1; /* Toggle isolated mode. */
+ /* RX/TX queues. */
+ unsigned int rxqs_n; /* RX queues array size. */
+ unsigned int txqs_n; /* TX queues array size. */
+ struct rxq *(*rxqs)[]; /* RX queues. */
+ struct txq *(*txqs)[]; /* TX queues. */
+ struct rte_intr_handle intr_handle; /* Port interrupt handle. */
+ struct rte_flow_drop *flow_drop_queue; /* Flow drop queue. */
+ LIST_HEAD(mlx4_flows, rte_flow) flows;
+};
-/* Debugging */
-#ifndef NDEBUG
-#include <stdio.h>
-#define DEBUG__(m, ...) \
- (fprintf(stderr, "%s:%d: %s(): " m "%c", \
- __FILE__, __LINE__, __func__, __VA_ARGS__), \
- fflush(stderr), \
- (void)0)
-/*
- * Save/restore errno around DEBUG__().
- * XXX somewhat undefined behavior, but works.
- */
-#define DEBUG_(...) \
- (errno = ((int []){ \
- *(volatile int *)&errno, \
- (DEBUG__(__VA_ARGS__), 0) \
- })[0])
-#define DEBUG(...) DEBUG_(__VA_ARGS__, '\n')
-#define claim_zero(...) assert((__VA_ARGS__) == 0)
-#define claim_nonzero(...) assert((__VA_ARGS__) != 0)
-#define claim_positive(...) assert((__VA_ARGS__) >= 0)
-#else /* NDEBUG */
-/* No-ops. */
-#define DEBUG(...) (void)0
-#define claim_zero(...) (__VA_ARGS__)
-#define claim_nonzero(...) (__VA_ARGS__)
-#define claim_positive(...) (__VA_ARGS__)
-#endif /* NDEBUG */
+/* mlx4.c */
+
+int mlx4_link_update(struct rte_eth_dev *dev, int wait_to_complete);
+
+/* mlx4_intr.c */
+
+int mlx4_intr_uninstall(struct priv *priv);
+int mlx4_intr_install(struct priv *priv);
+int mlx4_rx_intr_disable(struct rte_eth_dev *dev, uint16_t idx);
+int mlx4_rx_intr_enable(struct rte_eth_dev *dev, uint16_t idx);
#endif /* RTE_PMD_MLX4_H_ */