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Subject[PATCH 3/6] [RFC]mlx4_core public includes
Date
From
Include files for hardware/firmware information and interface of
mlx4_core module for protocol-specific drivers (such as mlx4_ib).

Signed-off-by: Roland Dreier <rolandd@cisco.com>

---
cmd.h | 178 +++++++++++++++++++++++++++++++++
cq.h | 123 +++++++++++++++++++++++
device.h | 323 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
doorbell.h | 97 ++++++++++++++++++
driver.h | 59 +++++++++++
qp.h | 288 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
srq.h | 42 +++++++
7 files changed, 1110 insertions(+)
diff --git a/include/linux/mlx4/cmd.h b/include/linux/mlx4/cmd.h
new file mode 100644
index 0000000..4fb552d
--- /dev/null
+++ b/include/linux/mlx4/cmd.h
@@ -0,0 +1,178 @@
+/*
+ * Copyright (c) 2006 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_CMD_H
+#define MLX4_CMD_H
+
+#include <linux/dma-mapping.h>
+
+enum {
+ /* initialization and general commands */
+ MLX4_CMD_SYS_EN = 0x1,
+ MLX4_CMD_SYS_DIS = 0x2,
+ MLX4_CMD_MAP_FA = 0xfff,
+ MLX4_CMD_UNMAP_FA = 0xffe,
+ MLX4_CMD_RUN_FW = 0xff6,
+ MLX4_CMD_MOD_STAT_CFG = 0x34,
+ MLX4_CMD_QUERY_DEV_CAP = 0x3,
+ MLX4_CMD_QUERY_FW = 0x4,
+ MLX4_CMD_ENABLE_LAM = 0xff8,
+ MLX4_CMD_DISABLE_LAM = 0xff7,
+ MLX4_CMD_QUERY_DDR = 0x5,
+ MLX4_CMD_QUERY_ADAPTER = 0x6,
+ MLX4_CMD_INIT_HCA = 0x7,
+ MLX4_CMD_CLOSE_HCA = 0x8,
+ MLX4_CMD_INIT_PORT = 0x9,
+ MLX4_CMD_CLOSE_PORT = 0xa,
+ MLX4_CMD_QUERY_HCA = 0xb,
+ MLX4_CMD_SET_PORT = 0xc,
+ MLX4_CMD_ACCESS_DDR = 0x2e,
+ MLX4_CMD_MAP_ICM = 0xffa,
+ MLX4_CMD_UNMAP_ICM = 0xff9,
+ MLX4_CMD_MAP_ICM_AUX = 0xffc,
+ MLX4_CMD_UNMAP_ICM_AUX = 0xffb,
+ MLX4_CMD_SET_ICM_SIZE = 0xffd,
+
+ /* TPT commands */
+ MLX4_CMD_SW2HW_MPT = 0xd,
+ MLX4_CMD_QUERY_MPT = 0xe,
+ MLX4_CMD_HW2SW_MPT = 0xf,
+ MLX4_CMD_READ_MTT = 0x10,
+ MLX4_CMD_WRITE_MTT = 0x11,
+ MLX4_CMD_SYNC_TPT = 0x2f,
+
+ /* EQ commands */
+ MLX4_CMD_MAP_EQ = 0x12,
+ MLX4_CMD_SW2HW_EQ = 0x13,
+ MLX4_CMD_HW2SW_EQ = 0x14,
+ MLX4_CMD_QUERY_EQ = 0x15,
+
+ /* CQ commands */
+ MLX4_CMD_SW2HW_CQ = 0x16,
+ MLX4_CMD_HW2SW_CQ = 0x17,
+ MLX4_CMD_QUERY_CQ = 0x18,
+ MLX4_CMD_RESIZE_CQ = 0x2c,
+
+ /* SRQ commands */
+ MLX4_CMD_SW2HW_SRQ = 0x35,
+ MLX4_CMD_HW2SW_SRQ = 0x36,
+ MLX4_CMD_QUERY_SRQ = 0x37,
+ MLX4_CMD_ARM_SRQ = 0x40,
+
+ /* QP/EE commands */
+ MLX4_CMD_RST2INIT_QP = 0x19,
+ MLX4_CMD_INIT2RTR_QP = 0x1a,
+ MLX4_CMD_RTR2RTS_QP = 0x1b,
+ MLX4_CMD_RTS2RTS_QP = 0x1c,
+ MLX4_CMD_SQERR2RTS_QP = 0x1d,
+ MLX4_CMD_2ERR_QP = 0x1e,
+ MLX4_CMD_RTS2SQD_QP = 0x1f,
+ MLX4_CMD_SQD2SQD_QP = 0x38,
+ MLX4_CMD_SQD2RTS_QP = 0x20,
+ MLX4_CMD_2RST_QP = 0x21,
+ MLX4_CMD_QUERY_QP = 0x22,
+ MLX4_CMD_INIT2INIT_QP = 0x2d,
+ MLX4_CMD_SUSPEND_QP = 0x32,
+ MLX4_CMD_UNSUSPEND_QP = 0x33,
+ /* special QP and management commands */
+ MLX4_CMD_CONF_SPECIAL_QP = 0x23,
+ MLX4_CMD_MAD_IFC = 0x24,
+
+ /* multicast commands */
+ MLX4_CMD_READ_MCG = 0x25,
+ MLX4_CMD_WRITE_MCG = 0x26,
+ MLX4_CMD_MGID_HASH = 0x27,
+
+ /* miscellaneous commands */
+ MLX4_CMD_DIAG_RPRT = 0x30,
+ MLX4_CMD_NOP = 0x31,
+
+ /* debug commands */
+ MLX4_CMD_QUERY_DEBUG_MSG = 0x2a,
+ MLX4_CMD_SET_DEBUG_MSG = 0x2b,
+};
+
+enum {
+ MLX4_CMD_TIME_CLASS_A = 10000,
+ MLX4_CMD_TIME_CLASS_B = 10000,
+ MLX4_CMD_TIME_CLASS_C = 10000,
+};
+
+enum {
+ MLX4_MAILBOX_SIZE = 4096
+};
+
+struct mlx4_dev;
+
+struct mlx4_cmd_mailbox {
+ void *buf;
+ dma_addr_t dma;
+};
+
+int __mlx4_cmd(struct mlx4_dev *dev, u64 in_param, u64 *out_param,
+ int out_is_imm, u32 in_modifier, u8 op_modifier,
+ u16 op, unsigned long timeout);
+
+/* Invoke a command with no output parameter */
+static inline int mlx4_cmd(struct mlx4_dev *dev, u64 in_param, u32 in_modifier,
+ u8 op_modifier, u16 op, unsigned long timeout)
+{
+ return __mlx4_cmd(dev, in_param, NULL, 0, in_modifier,
+ op_modifier, op, timeout);
+}
+
+/* Invoke a command with an output mailbox */
+static inline int mlx4_cmd_box(struct mlx4_dev *dev, u64 in_param, u64 out_param,
+ u32 in_modifier, u8 op_modifier, u16 op,
+ unsigned long timeout)
+{
+ return __mlx4_cmd(dev, in_param, &out_param, 0, in_modifier,
+ op_modifier, op, timeout);
+}
+
+/*
+ * Invoke a command with an immediate output parameter (and copy the
+ * output into the caller's out_param pointer after the command
+ * executes).
+ */
+static inline int mlx4_cmd_imm(struct mlx4_dev *dev, u64 in_param, u64 *out_param,
+ u32 in_modifier, u8 op_modifier, u16 op,
+ unsigned long timeout)
+{
+ return __mlx4_cmd(dev, in_param, out_param, 1, in_modifier,
+ op_modifier, op, timeout);
+}
+
+struct mlx4_cmd_mailbox *mlx4_alloc_cmd_mailbox(struct mlx4_dev *dev);
+void mlx4_free_cmd_mailbox(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox);
+
+#endif /* MLX4_CMD_H */
diff --git a/include/linux/mlx4/cq.h b/include/linux/mlx4/cq.h
new file mode 100644
index 0000000..0181e0a
--- /dev/null
+++ b/include/linux/mlx4/cq.h
@@ -0,0 +1,123 @@
+/*
+ * Copyright (c) 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_CQ_H
+#define MLX4_CQ_H
+
+#include <linux/types.h>
+
+#include <linux/mlx4/device.h>
+#include <linux/mlx4/doorbell.h>
+
+struct mlx4_cqe {
+ __be32 my_qpn;
+ __be32 immed_rss_invalid;
+ __be32 g_mlpath_rqpn;
+ u8 sl;
+ u8 reserved1;
+ __be16 rlid;
+ u32 reserved2;
+ __be32 byte_cnt;
+ __be16 wqe_index;
+ __be16 checksum;
+ u8 reserved3[3];
+ u8 owner_sr_opcode;
+};
+
+struct mlx4_err_cqe {
+ __be32 my_qpn;
+ u32 reserved1[5];
+ __be16 wqe_index;
+ u8 vendor_err_syndrome;
+ u8 syndrome;
+ u8 reserved2[3];
+ u8 owner_sr_opcode;
+};
+
+enum {
+ MLX4_CQE_OWNER_MASK = 0x80,
+ MLX4_CQE_IS_SEND_MASK = 0x40,
+ MLX4_CQE_OPCODE_MASK = 0x1f
+};
+
+enum {
+ MLX4_CQE_SYNDROME_LOCAL_LENGTH_ERR = 0x01,
+ MLX4_CQE_SYNDROME_LOCAL_QP_OP_ERR = 0x02,
+ MLX4_CQE_SYNDROME_LOCAL_PROT_ERR = 0x04,
+ MLX4_CQE_SYNDROME_WR_FLUSH_ERR = 0x05,
+ MLX4_CQE_SYNDROME_MW_BIND_ERR = 0x06,
+ MLX4_CQE_SYNDROME_BAD_RESP_ERR = 0x10,
+ MLX4_CQE_SYNDROME_LOCAL_ACCESS_ERR = 0x11,
+ MLX4_CQE_SYNDROME_REMOTE_INVAL_REQ_ERR = 0x12,
+ MLX4_CQE_SYNDROME_REMOTE_ACCESS_ERR = 0x13,
+ MLX4_CQE_SYNDROME_REMOTE_OP_ERR = 0x14,
+ MLX4_CQE_SYNDROME_TRANSPORT_RETRY_EXC_ERR = 0x15,
+ MLX4_CQE_SYNDROME_RNR_RETRY_EXC_ERR = 0x16,
+ MLX4_CQE_SYNDROME_REMOTE_ABORTED_ERR = 0x22,
+};
+
+static inline void mlx4_cq_arm(struct mlx4_cq *cq, u32 cmd,
+ void __iomem *uar_page,
+ spinlock_t *doorbell_lock)
+{
+ __be32 doorbell[2];
+ u32 sn;
+ u32 ci;
+
+ sn = cq->arm_sn & 3;
+ ci = cq->cons_index & 0xffffff;
+
+ *cq->arm_db = cpu_to_be32(sn << 28 | cmd | ci);
+
+ /*
+ * Make sure that the doorbell record in host memory is
+ * written before ringing the doorbell via PCI MMIO.
+ */
+ wmb();
+
+ doorbell[0] = cpu_to_be32(sn << 28 | cmd | cq->cqn);
+ doorbell[1] = cpu_to_be32(ci);
+
+ mlx4_write64(doorbell, uar_page + MLX4_CQ_DOORBELL, doorbell_lock);
+}
+
+static inline void mlx4_cq_set_ci(struct mlx4_cq *cq)
+{
+ *cq->set_ci_db = cpu_to_be32(cq->cons_index & 0xffffff);
+}
+
+enum {
+ MLX4_CQ_DB_REQ_NOT_SOL = 1 << 24,
+ MLX4_CQ_DB_REQ_NOT = 2 << 24
+};
+
+#endif /* MLX4_CQ_H */
diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h
new file mode 100644
index 0000000..54c5509
--- /dev/null
+++ b/include/linux/mlx4/device.h
@@ -0,0 +1,323 @@
+/*
+ * 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_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 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_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 */
diff --git a/include/linux/mlx4/doorbell.h b/include/linux/mlx4/doorbell.h
new file mode 100644
index 0000000..3f2da44
--- /dev/null
+++ b/include/linux/mlx4/doorbell.h
@@ -0,0 +1,97 @@
+/*
+ * Copyright (c) 2004 Topspin Communications. All rights reserved.
+ * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
+ * Copyright (c) 2005 Mellanox Technologies. 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_DOORBELL_H
+#define MLX4_DOORBELL_H
+
+#include <linux/types.h>
+#include <linux/io.h>
+
+#define MLX4_SEND_DOORBELL 0x14
+#define MLX4_CQ_DOORBELL 0x20
+
+#if BITS_PER_LONG == 64
+/*
+ * Assume that we can just write a 64-bit doorbell atomically. s390
+ * actually doesn't have writeq() but S/390 systems don't even have
+ * PCI so we won't worry about it.
+ */
+
+#define MLX4_DECLARE_DOORBELL_LOCK(name)
+#define MLX4_INIT_DOORBELL_LOCK(ptr) do { } while (0)
+#define MLX4_GET_DOORBELL_LOCK(ptr) (NULL)
+
+static inline void mlx4_write64_raw(__be64 val, void __iomem *dest)
+{
+ __raw_writeq((__force u64) val, dest);
+}
+
+static inline void mlx4_write64(__be32 val[2], void __iomem *dest,
+ spinlock_t *doorbell_lock)
+{
+ __raw_writeq(*(u64 *) val, dest);
+}
+
+#else
+
+/*
+ * Just fall back to a spinlock to protect the doorbell if
+ * BITS_PER_LONG is 32 -- there's no portable way to do atomic 64-bit
+ * MMIO writes.
+ */
+
+#define MLX4_DECLARE_DOORBELL_LOCK(name) spinlock_t name;
+#define MLX4_INIT_DOORBELL_LOCK(ptr) spin_lock_init(ptr)
+#define MLX4_GET_DOORBELL_LOCK(ptr) (ptr)
+
+static inline void mlx4_write64_raw(__be64 val, void __iomem *dest)
+{
+ __raw_writel(((__force u32 *) &val)[0], dest);
+ __raw_writel(((__force u32 *) &val)[1], dest + 4);
+}
+
+static inline void mlx4_write64(__be32 val[2], void __iomem *dest,
+ spinlock_t *doorbell_lock)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(doorbell_lock, flags);
+ __raw_writel((__force u32) val[0], dest);
+ __raw_writel((__force u32) val[1], dest + 4);
+ spin_unlock_irqrestore(doorbell_lock, flags);
+}
+
+#endif
+
+#endif /* MLX4_DOORBELL_H */
diff --git a/include/linux/mlx4/driver.h b/include/linux/mlx4/driver.h
new file mode 100644
index 0000000..61925fc
--- /dev/null
+++ b/include/linux/mlx4/driver.h
@@ -0,0 +1,59 @@
+/*
+ * Copyright (c) 2006 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_DRIVER_H
+#define MLX4_DRIVER_H
+
+#include <linux/device.h>
+
+struct mlx4_dev;
+
+enum mlx4_dev_event {
+ MLX4_DEV_EVENT_CATASTROPHIC_ERROR,
+ MLX4_DEV_EVENT_PORT_UP,
+ MLX4_DEV_EVENT_PORT_DOWN,
+ MLX4_DEV_EVENT_PORT_REINIT,
+};
+
+struct mlx4_interface {
+ void * (*add) (struct mlx4_dev *dev);
+ void (*remove)(struct mlx4_dev *dev, void *context);
+ void (*event) (struct mlx4_dev *dev,
+ enum mlx4_dev_event event,
+ int port);
+ struct list_head list;
+};
+
+int mlx4_register_interface(struct mlx4_interface *intf);
+void mlx4_unregister_interface(struct mlx4_interface *intf);
+
+#endif /* MLX4_DRIVER_H */
diff --git a/include/linux/mlx4/qp.h b/include/linux/mlx4/qp.h
new file mode 100644
index 0000000..9eeb61a
--- /dev/null
+++ b/include/linux/mlx4/qp.h
@@ -0,0 +1,288 @@
+/*
+ * Copyright (c) 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_QP_H
+#define MLX4_QP_H
+
+#include <linux/types.h>
+
+#include <linux/mlx4/device.h>
+
+#define MLX4_INVALID_LKEY 0x100
+
+enum mlx4_qp_optpar {
+ MLX4_QP_OPTPAR_ALT_ADDR_PATH = 1 << 0,
+ MLX4_QP_OPTPAR_RRE = 1 << 1,
+ MLX4_QP_OPTPAR_RAE = 1 << 2,
+ MLX4_QP_OPTPAR_RWE = 1 << 3,
+ MLX4_QP_OPTPAR_PKEY_INDEX = 1 << 4,
+ MLX4_QP_OPTPAR_Q_KEY = 1 << 5,
+ MLX4_QP_OPTPAR_RNR_TIMEOUT = 1 << 6,
+ MLX4_QP_OPTPAR_PRIMARY_ADDR_PATH = 1 << 7,
+ MLX4_QP_OPTPAR_SRA_MAX = 1 << 8,
+ MLX4_QP_OPTPAR_RRA_MAX = 1 << 9,
+ MLX4_QP_OPTPAR_PM_STATE = 1 << 10,
+ MLX4_QP_OPTPAR_RETRY_COUNT = 1 << 12,
+ MLX4_QP_OPTPAR_RNR_RETRY = 1 << 13,
+ MLX4_QP_OPTPAR_ACK_TIMEOUT = 1 << 14,
+ MLX4_QP_OPTPAR_SCHED_QUEUE = 1 << 16
+};
+
+enum mlx4_qp_state {
+ MLX4_QP_STATE_RST = 0,
+ MLX4_QP_STATE_INIT = 1,
+ MLX4_QP_STATE_RTR = 2,
+ MLX4_QP_STATE_RTS = 3,
+ MLX4_QP_STATE_SQER = 4,
+ MLX4_QP_STATE_SQD = 5,
+ MLX4_QP_STATE_ERR = 6,
+ MLX4_QP_STATE_SQ_DRAINING = 7,
+ MLX4_QP_NUM_STATE
+};
+
+enum {
+ MLX4_QP_ST_RC = 0x0,
+ MLX4_QP_ST_UC = 0x1,
+ MLX4_QP_ST_RD = 0x2,
+ MLX4_QP_ST_UD = 0x3,
+ MLX4_QP_ST_MLX = 0x7
+};
+
+enum {
+ MLX4_QP_PM_MIGRATED = 0x3,
+ MLX4_QP_PM_ARMED = 0x0,
+ MLX4_QP_PM_REARM = 0x1
+};
+
+enum {
+ /* params1 */
+ MLX4_QP_BIT_SRE = 1 << 15,
+ MLX4_QP_BIT_SWE = 1 << 14,
+ MLX4_QP_BIT_SAE = 1 << 13,
+ /* params2 */
+ MLX4_QP_BIT_RRE = 1 << 15,
+ MLX4_QP_BIT_RWE = 1 << 14,
+ MLX4_QP_BIT_RAE = 1 << 13,
+ MLX4_QP_BIT_RIC = 1 << 4,
+};
+
+struct mlx4_qp_path {
+ u8 fl;
+ u8 reserved1[2];
+ u8 pkey_index;
+ u8 reserved2;
+ u8 grh_mylmc;
+ __be16 rlid;
+ u8 ackto;
+ u8 mgid_index;
+ u8 static_rate;
+ u8 hop_limit;
+ __be32 tclass_flowlabel;
+ u8 rgid[16];
+ u8 sched_queue;
+ u8 snooper_flags;
+ u8 reserved3[2];
+ u8 counter_index;
+ u8 reserved4[7];
+};
+
+struct mlx4_qp_context {
+ __be32 flags;
+ __be32 pd;
+ u8 mtu_msgmax;
+ u8 rq_size_stride;
+ u8 sq_size_stride;
+ u8 rlkey;
+ __be32 usr_page;
+ __be32 local_qpn;
+ __be32 remote_qpn;
+ struct mlx4_qp_path pri_path;
+ struct mlx4_qp_path alt_path;
+ __be32 params1;
+ u32 reserved1;
+ __be32 next_send_psn;
+ __be32 cqn_send;
+ u32 reserved2[2];
+ __be32 last_acked_psn;
+ __be32 ssn;
+ __be32 params2;
+ __be32 rnr_nextrecvpsn;
+ __be32 srcd;
+ __be32 cqn_recv;
+ __be64 db_rec_addr;
+ __be32 qkey;
+ __be32 srqn;
+ __be32 msn;
+ __be16 rq_wqe_counter;
+ __be16 sq_wqe_counter;
+ u32 reserved3[2];
+ __be32 param3;
+ __be32 nummmcpeers_basemkey;
+ u8 log_page_size;
+ u8 reserved4[2];
+ u8 mtt_base_addr_h;
+ __be32 mtt_base_addr_l;
+ u32 reserved5[10];
+};
+
+enum {
+ MLX4_WQE_CTRL_FENCE = 1 << 6,
+ MLX4_WQE_CTRL_CQ_UPDATE = 3 << 2,
+ MLX4_WQE_CTRL_SOLICITED = 1 << 1,
+};
+
+struct mlx4_wqe_ctrl_seg {
+ __be32 owner_opcode;
+ u8 reserved2[3];
+ u8 fence_size;
+ /*
+ * High 24 bits are SRC remote buffer; low 8 bits are flags:
+ * [7] SO (strong ordering)
+ * [5] TCP/UDP checksum
+ * [4] IP checksum
+ * [3:2] C (generate completion queue entry)
+ * [1] SE (solicited event)
+ */
+ __be32 srcrb_flags;
+ /*
+ * imm is immediate data for send/RDMA write w/ immediate;
+ * also invalidation key for send with invalidate; input
+ * modifier for WQEs on CCQs.
+ */
+ __be32 imm;
+};
+
+enum {
+ MLX4_WQE_MLX_VL15 = 1 << 17,
+ MLX4_WQE_MLX_SLR = 1 << 16
+};
+
+struct mlx4_wqe_mlx_seg {
+ u8 owner;
+ u8 reserved1[2];
+ u8 opcode;
+ u8 reserved2[3];
+ u8 size;
+ /*
+ * [17] VL15
+ * [16] SLR
+ * [15:12] static rate
+ * [11:8] SL
+ * [4] ICRC
+ * [3:2] C
+ * [0] FL (force loopback)
+ */
+ __be32 flags;
+ __be16 rlid;
+ u16 reserved3;
+};
+
+struct mlx4_wqe_datagram_seg {
+ __be32 av[8];
+ __be32 dqpn;
+ __be32 qkey;
+ __be32 reservd[2];
+};
+
+struct mlx4_wqe_bind_seg {
+ __be32 flags1;
+ __be32 flags2;
+ __be32 new_rkey;
+ __be32 lkey;
+ __be64 addr;
+ __be64 length;
+};
+
+struct mlx4_wqe_fmr_seg {
+ __be32 flags;
+ __be32 mem_key;
+ __be64 buf_list;
+ __be64 start_addr;
+ __be64 reg_len;
+ __be32 offset;
+ __be32 page_size;
+ u32 reserved[2];
+};
+
+struct mlx4_wqe_fmr_ext_seg {
+ u8 flags;
+ u8 reserved;
+ __be16 app_mask;
+ __be16 wire_app_tag;
+ __be16 mem_app_tag;
+ __be32 wire_ref_tag_base;
+ __be32 mem_ref_tag_base;
+};
+
+struct mlx4_wqe_local_inval_seg {
+ u8 flags;
+ u8 reserved1[3];
+ __be32 mem_key;
+ u8 reserved2[3];
+ u8 guest_id;
+ __be64 pa;
+};
+
+struct mlx4_wqe_raddr_seg {
+ __be64 raddr;
+ __be32 rkey;
+ u32 reserved;
+};
+
+struct mlx4_wqe_atomic_seg {
+ __be64 swap_add;
+ __be64 compare;
+};
+
+struct mlx4_wqe_data_seg {
+ __be32 byte_count;
+ __be32 lkey;
+ __be64 addr;
+};
+
+struct mlx4_wqe_inline_seg {
+ __be32 byte_count;
+};
+
+int mlx4_qp_modify(struct mlx4_dev *dev, struct mlx4_mtt *mtt,
+ enum mlx4_qp_state cur_state, enum mlx4_qp_state new_state,
+ struct mlx4_qp_context *context, enum mlx4_qp_optpar optpar,
+ int sqd_event, struct mlx4_qp *qp);
+
+static inline struct mlx4_qp *__mlx4_qp_lookup(struct mlx4_dev *dev, u32 qpn)
+{
+ return radix_tree_lookup(&dev->qp_table_tree, qpn & (dev->caps.num_qps - 1));
+}
+
+void mlx4_qp_remove(struct mlx4_dev *dev, struct mlx4_qp *qp);
+
+#endif /* MLX4_QP_H */
diff --git a/include/linux/mlx4/srq.h b/include/linux/mlx4/srq.h
new file mode 100644
index 0000000..799a069
--- /dev/null
+++ b/include/linux/mlx4/srq.h
@@ -0,0 +1,42 @@
+/*
+ * Copyright (c) 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_SRQ_H
+#define MLX4_SRQ_H
+
+struct mlx4_wqe_srq_next_seg {
+ u16 reserved1;
+ __be16 next_wqe_index;
+ u32 reserved2[3];
+};
+
+#endif /* MLX4_SRQ_H */
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