/*-
* BSD LICENSE
*
- * Copyright 2012-2017 6WIND S.A.
- * Copyright 2012-2017 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>
/*
* Runtime logging through RTE_LOG() is enabled when not in debugging mode.
#pragma GCC diagnostic error "-Wpedantic"
#endif
-/*
- * 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
-
-/* Maximum number of simultaneous VLAN filters supported. See above. */
-#define MLX4_MAX_VLAN_IDS 127
-
/* Request send completion once in every 64 sends, might be less. */
#define MLX4_PMD_TX_PER_COMP_REQ 64
-/* Maximum number of physical ports. */
-#define MLX4_PMD_MAX_PHYS_PORTS 2
-
-/* Maximum number of Scatter/Gather Elements per Work Request. */
-#ifndef MLX4_PMD_SGE_WR_N
-#define MLX4_PMD_SGE_WR_N 4
-#endif
-
/* 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
-
/* Alarm timeout. */
#define MLX4_ALARM_TIMEOUT_US 100000
#define MLX4_DRIVER_NAME "net_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
-
/* Debugging */
#ifndef NDEBUG
#include <stdio.h>
(DEBUG__(__VA_ARGS__), 0) \
})[0])
#define DEBUG(...) DEBUG_(__VA_ARGS__, '\n')
+#ifndef MLX4_PMD_DEBUG_BROKEN_VERBS
#define claim_zero(...) assert((__VA_ARGS__) == 0)
+#else /* MLX4_PMD_DEBUG_BROKEN_VERBS */
+#define claim_zero(...) \
+ (void)(((__VA_ARGS__) == 0) || \
+ DEBUG("Assertion `(" # __VA_ARGS__ ") == 0' failed (IGNORED)."))
+#endif /* MLX4_PMD_DEBUG_BROKEN_VERBS */
#define claim_nonzero(...) assert((__VA_ARGS__) != 0)
#define claim_positive(...) assert((__VA_ARGS__) >= 0)
#else /* NDEBUG */
struct mlx4_rxq_stats {
unsigned int idx; /**< Mapping index. */
-#ifdef MLX4_PMD_SOFT_COUNTERS
uint64_t ipackets; /**< Total of successfully received packets. */
uint64_t ibytes; /**< Total of successfully received bytes. */
-#endif
uint64_t idropped; /**< Total of packets dropped when RX ring full. */
uint64_t rx_nombuf; /**< Total of RX mbuf allocation failures. */
};
-/* RX element (scattered packets). */
-struct rxq_elt_sp {
- struct ibv_recv_wr wr; /* Work Request. */
- struct ibv_sge sges[MLX4_PMD_SGE_WR_N]; /* Scatter/Gather Elements. */
- struct rte_mbuf *bufs[MLX4_PMD_SGE_WR_N]; /* SGEs buffers. */
-};
-
/* RX element. */
struct rxq_elt {
struct ibv_recv_wr wr; /* Work Request. */
struct ibv_qp *qp; /* Queue Pair. */
struct ibv_exp_qp_burst_family *if_qp; /* QP burst interface. */
struct ibv_exp_cq_family *if_cq; /* CQ interface. */
- /*
- * Each VLAN ID requires a separate flow steering rule.
- */
- BITFIELD_DECLARE(mac_configured, uint32_t, MLX4_MAX_MAC_ADDRESSES);
- struct ibv_flow *mac_flow[MLX4_MAX_MAC_ADDRESSES][MLX4_MAX_VLAN_IDS];
- struct ibv_flow *promisc_flow; /* Promiscuous flow. */
- struct ibv_flow *allmulti_flow; /* Multicast flow. */
+ struct ibv_comp_channel *channel;
unsigned int port_id; /* Port ID for incoming packets. */
unsigned int elts_n; /* (*elts)[] length. */
unsigned int elts_head; /* Current index in (*elts)[]. */
- union {
- struct rxq_elt_sp (*sp)[]; /* Scattered RX elements. */
- struct rxq_elt (*no_sp)[]; /* RX elements. */
- } elts;
- unsigned int sp:1; /* Use scattered RX elements. */
- unsigned int csum:1; /* Enable checksum offloading. */
- unsigned int csum_l2tun:1; /* Same for L2 tunnels. */
+ struct rxq_elt (*elts)[]; /* Rx elements. */
struct mlx4_rxq_stats stats; /* RX queue counters. */
unsigned int socket; /* CPU socket ID for allocations. */
struct ibv_exp_res_domain *rd; /* Resource Domain. */
struct mlx4_txq_stats {
unsigned int idx; /**< Mapping index. */
-#ifdef MLX4_PMD_SOFT_COUNTERS
uint64_t opackets; /**< Total of successfully sent packets. */
uint64_t obytes; /**< Total of successfully sent bytes. */
-#endif
uint64_t odropped; /**< Total of packets not sent when TX ring full. */
};
-/*
- * Linear buffer type. It is used when transmitting buffers with too many
- * segments that do not fit the hardware queue (see max_send_sge).
- * Extra segments are copied (linearized) in such buffers, replacing the
- * last SGE during TX.
- * The size is arbitrary but large enough to hold a jumbo frame with
- * 8 segments considering mbuf.buf_len is about 2048 bytes.
- */
-typedef uint8_t linear_t[16384];
-
/* TX queue descriptor. */
struct txq {
struct priv *priv; /* Back pointer to private data. */
struct ibv_qp *qp; /* Queue Pair. */
struct ibv_exp_qp_burst_family *if_qp; /* QP burst interface. */
struct ibv_exp_cq_family *if_cq; /* CQ interface. */
-#if MLX4_PMD_MAX_INLINE > 0
uint32_t max_inline; /* Max inline send size <= MLX4_PMD_MAX_INLINE. */
-#endif
unsigned int elts_n; /* (*elts)[] length. */
struct txq_elt (*elts)[]; /* TX elements. */
unsigned int elts_head; /* Current index in (*elts)[]. */
unsigned int elts_comp_cd; /* Countdown for next completion request. */
unsigned int elts_comp_cd_init; /* Initial value for countdown. */
struct mlx4_txq_stats stats; /* TX queue counters. */
- linear_t (*elts_linear)[]; /* Linearized buffers. */
- struct ibv_mr *mr_linear; /* Memory Region for linearized buffers. */
unsigned int socket; /* CPU socket ID for allocations. */
struct ibv_exp_res_domain *rd; /* Resource Domain. */
};
struct ibv_context *ctx; /* Verbs context. */
struct ibv_device_attr device_attr; /* Device properties. */
struct ibv_pd *pd; /* Protection Domain. */
- /*
- * MAC addresses array and configuration bit-field.
- * An extra entry that cannot be modified by the DPDK is reserved
- * for broadcast frames (destination MAC address ff:ff:ff:ff:ff:ff).
- */
- struct ether_addr mac[MLX4_MAX_MAC_ADDRESSES];
- BITFIELD_DECLARE(mac_configured, uint32_t, MLX4_MAX_MAC_ADDRESSES);
- /* VLAN filters. */
- struct {
- unsigned int enabled:1; /* If enabled. */
- unsigned int id:12; /* VLAN ID (0-4095). */
- } vlan_filter[MLX4_MAX_VLAN_IDS]; /* VLAN filters table. */
+ 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 promisc:1; /* Device in promiscuous mode. */
- unsigned int allmulti:1; /* Device receives all multicast packets. */
- unsigned int hw_qpg:1; /* QP groups are supported. */
- unsigned int hw_tss:1; /* TSS is supported. */
- unsigned int hw_rss:1; /* RSS is supported. */
- unsigned int hw_csum:1; /* Checksum offload is supported. */
- unsigned int hw_csum_l2tun:1; /* Same for L2 tunnels. */
- unsigned int rss:1; /* RSS is enabled. */
unsigned int vf:1; /* This is a VF device. */
unsigned int pending_alarm:1; /* An alarm is pending. */
-#ifdef INLINE_RECV
- unsigned int inl_recv_size; /* Inline recv size */
-#endif
- unsigned int max_rss_tbl_sz; /* Maximum number of RSS queues. */
+ unsigned int isolated:1; /* Toggle isolated mode. */
/* RX/TX queues. */
- struct rxq rxq_parent; /* Parent queue when RSS is enabled. */
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_dev; /* Device interrupt handler. */
struct rte_intr_handle intr_handle; /* Interrupt handler. */
struct rte_flow_drop *flow_drop_queue; /* Flow drop queue. */
LIST_HEAD(mlx4_flows, rte_flow) flows;
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