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+/*
+ * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#ifndef MLX4_DEVICE_H
+#define MLX4_DEVICE_H
+
+#include <linux/pci.h>
+#include <linux/completion.h>
+#include <linux/radix-tree.h>
+
+#include <asm/atomic.h>
+
+enum {
+ MLX4_FLAG_MSI_X = 1 << 0,
+};
+
+enum {
+ MLX4_MAX_PORTS = 2
+};
+
+enum {
+ MLX4_DEV_CAP_FLAG_RC = 1 << 0,
+ MLX4_DEV_CAP_FLAG_UC = 1 << 1,
+ MLX4_DEV_CAP_FLAG_UD = 1 << 2,
+ MLX4_DEV_CAP_FLAG_SRQ = 1 << 6,
+ MLX4_DEV_CAP_FLAG_IPOIB_CSUM = 1 << 7,
+ MLX4_DEV_CAP_FLAG_BAD_PKEY_CNTR = 1 << 8,
+ MLX4_DEV_CAP_FLAG_BAD_QKEY_CNTR = 1 << 9,
+ MLX4_DEV_CAP_FLAG_MEM_WINDOW = 1 << 16,
+ MLX4_DEV_CAP_FLAG_APM = 1 << 17,
+ MLX4_DEV_CAP_FLAG_ATOMIC = 1 << 18,
+ MLX4_DEV_CAP_FLAG_RAW_MCAST = 1 << 19,
+ MLX4_DEV_CAP_FLAG_UD_AV_PORT = 1 << 20,
+ MLX4_DEV_CAP_FLAG_UD_MCAST = 1 << 21
+};
+
+enum mlx4_event {
+ MLX4_EVENT_TYPE_COMP = 0x00,
+ MLX4_EVENT_TYPE_PATH_MIG = 0x01,
+ MLX4_EVENT_TYPE_COMM_EST = 0x02,
+ MLX4_EVENT_TYPE_SQ_DRAINED = 0x03,
+ MLX4_EVENT_TYPE_SRQ_QP_LAST_WQE = 0x13,
+ MLX4_EVENT_TYPE_SRQ_LIMIT = 0x14,
+ MLX4_EVENT_TYPE_CQ_ERROR = 0x04,
+ MLX4_EVENT_TYPE_WQ_CATAS_ERROR = 0x05,
+ MLX4_EVENT_TYPE_EEC_CATAS_ERROR = 0x06,
+ MLX4_EVENT_TYPE_PATH_MIG_FAILED = 0x07,
+ MLX4_EVENT_TYPE_WQ_INVAL_REQ_ERROR = 0x10,
+ MLX4_EVENT_TYPE_WQ_ACCESS_ERROR = 0x11,
+ MLX4_EVENT_TYPE_SRQ_CATAS_ERROR = 0x12,
+ MLX4_EVENT_TYPE_LOCAL_CATAS_ERROR = 0x08,
+ MLX4_EVENT_TYPE_PORT_CHANGE = 0x09,
+ MLX4_EVENT_TYPE_EQ_OVERFLOW = 0x0f,
+ MLX4_EVENT_TYPE_ECC_DETECT = 0x0e,
+ MLX4_EVENT_TYPE_CMD = 0x0a
+};
+
+enum {
+ MLX4_PORT_CHANGE_SUBTYPE_DOWN = 1,
+ MLX4_PORT_CHANGE_SUBTYPE_ACTIVE = 4
+};
+
+enum {
+ MLX4_PERM_LOCAL_READ = 1 << 10,
+ MLX4_PERM_LOCAL_WRITE = 1 << 11,
+ MLX4_PERM_REMOTE_READ = 1 << 12,
+ MLX4_PERM_REMOTE_WRITE = 1 << 13,
+ MLX4_PERM_ATOMIC = 1 << 14
+};
+
+enum {
+ MLX4_OPCODE_NOP = 0x00,
+ MLX4_OPCODE_SEND_INVAL = 0x01,
+ MLX4_OPCODE_RDMA_WRITE = 0x08,
+ MLX4_OPCODE_RDMA_WRITE_IMM = 0x09,
+ MLX4_OPCODE_SEND = 0x0a,
+ MLX4_OPCODE_SEND_IMM = 0x0b,
+ MLX4_OPCODE_LSO = 0x0e,
+ MLX4_OPCODE_RDMA_READ = 0x10,
+ MLX4_OPCODE_ATOMIC_CS = 0x11,
+ MLX4_OPCODE_ATOMIC_FA = 0x12,
+ MLX4_OPCODE_ATOMIC_MASK_CS = 0x14,
+ MLX4_OPCODE_ATOMIC_MASK_FA = 0x15,
+ MLX4_OPCODE_BIND_MW = 0x18,
+ MLX4_OPCODE_FMR = 0x19,
+ MLX4_OPCODE_LOCAL_INVAL = 0x1b,
+ MLX4_OPCODE_CONFIG_CMD = 0x1f,
+
+ MLX4_RECV_OPCODE_RDMA_WRITE_IMM = 0x00,
+ MLX4_RECV_OPCODE_SEND = 0x01,
+ MLX4_RECV_OPCODE_SEND_IMM = 0x02,
+ MLX4_RECV_OPCODE_SEND_INVAL = 0x03,
+
+ MLX4_CQE_OPCODE_ERROR = 0x1e,
+ MLX4_CQE_OPCODE_RESIZE = 0x16,
+};
+
+enum {
+ MLX4_STAT_RATE_OFFSET = 5
+};
+
+struct mlx4_caps {
+ u64 fw_ver;
+ int num_ports;
+ int vl_cap;
+ int mtu_cap;
+ int gid_table_len;
+ int pkey_table_len;
+ int local_ca_ack_delay;
+ int num_uars;
+ int bf_reg_size;
+ int bf_regs_per_page;
+ int max_sq_sg;
+ int max_rq_sg;
+ int num_qps;
+ int max_wqes;
+ int max_sq_desc_sz;
+ int max_rq_desc_sz;
+ int max_qp_init_rdma;
+ int max_qp_dest_rdma;
+ int reserved_qps;
+ int sqp_start;
+ int num_srqs;
+ int max_srq_wqes;
+ int max_srq_sge;
+ int reserved_srqs;
+ int num_cqs;
+ int max_cqes;
+ int reserved_cqs;
+ int num_eqs;
+ int reserved_eqs;
+ int num_mpts;
+ int num_mtt_segs;
+ int fmr_reserved_mtts;
+ int reserved_mtts;
+ int reserved_mrws;
+ int reserved_uars;
+ int num_mgms;
+ int num_amgms;
+ int reserved_mcgs;
+ int num_qp_per_mgm;
+ int num_pds;
+ int reserved_pds;
+ int mtt_entry_sz;
+ u32 page_size_cap;
+ u32 flags;
+ u16 stat_rate_support;
+ u8 port_width_cap;
+};
+
+struct mlx4_buf_list {
+ void *buf;
+ dma_addr_t map;
+};
+
+struct mlx4_buf {
+ union {
+ struct mlx4_buf_list direct;
+ struct mlx4_buf_list *page_list;
+ } u;
+ int nbufs;
+ int npages;
+ int page_shift;
+};
+
+struct mlx4_mtt {
+ u32 first_seg;
+ int order;
+ int page_shift;
+};
+
+struct mlx4_mr {
+ struct mlx4_mtt mtt;
+ u64 iova;
+ u64 size;
+ u32 key;
+ u32 pd;
+ u32 access;
+ int enabled;
+};
+
+struct mlx4_uar {
+ unsigned long pfn;
+ int index;
+};
+
+struct mlx4_cq {
+ void (*comp) (struct mlx4_cq *);
+ void (*event) (struct mlx4_cq *, enum mlx4_event);
+
+ struct mlx4_uar *uar;
+
+ u32 cons_index;
+
+ __be32 *set_ci_db;
+ __be32 *arm_db;
+ int arm_sn;
+
+ int cqn;
+
+ atomic_t refcount;
+ struct completion free;
+};
+
+struct mlx4_qp {
+ void (*event) (struct mlx4_qp *, enum mlx4_event);
+
+ int qpn;
+
+ atomic_t refcount;
+ struct completion free;
+};
+
+struct mlx4_srq {
+ void (*event) (struct mlx4_srq *, enum mlx4_event);
+
+ int srqn;
+ int max;
+ int max_gs;
+ int wqe_shift;
+
+ atomic_t refcount;
+ struct completion free;
+};
+
+struct mlx4_av {
+ __be32 port_pd;
+ u8 reserved1;
+ u8 g_slid;
+ __be16 dlid;
+ u8 reserved2;
+ u8 gid_index;
+ u8 stat_rate;
+ u8 hop_limit;
+ __be32 sl_tclass_flowlabel;
+ u8 dgid[16];
+};
+
+struct mlx4_dev {
+ struct pci_dev *pdev;
+ unsigned long flags;
+ struct mlx4_caps caps;
+ struct radix_tree_root qp_table_tree;
+};
+
+struct mlx4_init_port_param {
+ int set_guid0;
+ int set_node_guid;
+ int set_si_guid;
+ u16 mtu;
+ int port_width_cap;
+ u16 vl_cap;
+ u16 max_gid;
+ u16 max_pkey;
+ u64 guid0;
+ u64 node_guid;
+ u64 si_guid;
+};
+
+int mlx4_buf_alloc(struct mlx4_dev *dev, int size, int max_direct,
+ struct mlx4_buf *buf);
+void mlx4_buf_free(struct mlx4_dev *dev, int size, struct mlx4_buf *buf);
+
+int mlx4_pd_alloc(struct mlx4_dev *dev, u32 *pdn);
+void mlx4_pd_free(struct mlx4_dev *dev, u32 pdn);
+
+int mlx4_uar_alloc(struct mlx4_dev *dev, struct mlx4_uar *uar);
+void mlx4_uar_free(struct mlx4_dev *dev, struct mlx4_uar *uar);
+
+int mlx4_mtt_init(struct mlx4_dev *dev, int npages, int page_shift,
+ struct mlx4_mtt *mtt);
+void mlx4_mtt_cleanup(struct mlx4_dev *dev, struct mlx4_mtt *mtt);
+u64 mlx4_mtt_addr(struct mlx4_dev *dev, struct mlx4_mtt *mtt);
+
+int mlx4_mr_alloc(struct mlx4_dev *dev, u32 pd, u64 iova, u64 size, u32 access,
+ int npages, int page_shift, struct mlx4_mr *mr);
+void mlx4_mr_free(struct mlx4_dev *dev, struct mlx4_mr *mr);
+int mlx4_mr_enable(struct mlx4_dev *dev, struct mlx4_mr *mr);
+int mlx4_write_mtt(struct mlx4_dev *dev, struct mlx4_mtt *mtt,
+ int start_index, int npages, u64 *page_list);
+int mlx4_buf_write_mtt(struct mlx4_dev *dev, struct mlx4_mtt *mtt,
+ struct mlx4_buf *buf);
+
+int mlx4_cq_alloc(struct mlx4_dev *dev, int nent, struct mlx4_mtt *mtt,
+ struct mlx4_uar *uar, u64 db_rec, struct mlx4_cq *cq);
+void mlx4_cq_free(struct mlx4_dev *dev, struct mlx4_cq *cq);
+
+int mlx4_qp_alloc(struct mlx4_dev *dev, int sqpn, struct mlx4_qp *qp);
+void mlx4_qp_free(struct mlx4_dev *dev, struct mlx4_qp *qp);
+
+int mlx4_srq_alloc(struct mlx4_dev *dev, u32 pdn, struct mlx4_mtt *mtt,
+ u64 db_rec, struct mlx4_srq *srq);
+void mlx4_srq_free(struct mlx4_dev *dev, struct mlx4_srq *srq);
+int mlx4_srq_arm(struct mlx4_dev *dev, struct mlx4_srq *srq, int limit_watermark);
+
+int mlx4_INIT_PORT(struct mlx4_dev *dev, struct mlx4_init_port_param *param, int port);
+int mlx4_CLOSE_PORT(struct mlx4_dev *dev, int port);
+
+int mlx4_multicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16]);
+int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16]);
+
+#endif /* MLX4_DEVICE_H */
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