| /* |
| * Copyright (c) 2006 Chelsio, 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 __IWCH_PROVIDER_H__ |
| #define __IWCH_PROVIDER_H__ |
| |
| #include <linux/list.h> |
| #include <linux/spinlock.h> |
| #include <rdma/ib_verbs.h> |
| #include <asm/types.h> |
| #include "t3cdev.h" |
| #include "iwch.h" |
| #include "cxio_wr.h" |
| #include "cxio_hal.h" |
| |
| struct iwch_pd { |
| struct ib_pd ibpd; |
| u32 pdid; |
| struct iwch_dev *rhp; |
| }; |
| |
| static inline struct iwch_pd *to_iwch_pd(struct ib_pd *ibpd) |
| { |
| return container_of(ibpd, struct iwch_pd, ibpd); |
| } |
| |
| struct tpt_attributes { |
| u32 stag; |
| u32 state:1; |
| u32 type:2; |
| u32 rsvd:1; |
| enum tpt_mem_perm perms; |
| u32 remote_invaliate_disable:1; |
| u32 zbva:1; |
| u32 mw_bind_enable:1; |
| u32 page_size:5; |
| |
| u32 pdid; |
| u32 qpid; |
| u32 pbl_addr; |
| u32 len; |
| u64 va_fbo; |
| u32 pbl_size; |
| }; |
| |
| struct iwch_mr { |
| struct ib_mr ibmr; |
| struct iwch_dev *rhp; |
| u64 kva; |
| struct tpt_attributes attr; |
| }; |
| |
| typedef struct iwch_mw iwch_mw_handle; |
| |
| static inline struct iwch_mr *to_iwch_mr(struct ib_mr *ibmr) |
| { |
| return container_of(ibmr, struct iwch_mr, ibmr); |
| } |
| |
| struct iwch_mw { |
| struct ib_mw ibmw; |
| struct iwch_dev *rhp; |
| u64 kva; |
| struct tpt_attributes attr; |
| }; |
| |
| static inline struct iwch_mw *to_iwch_mw(struct ib_mw *ibmw) |
| { |
| return container_of(ibmw, struct iwch_mw, ibmw); |
| } |
| |
| struct iwch_cq { |
| struct ib_cq ibcq; |
| struct iwch_dev *rhp; |
| struct t3_cq cq; |
| spinlock_t lock; |
| atomic_t refcnt; |
| wait_queue_head_t wait; |
| u32 __user *user_rptr_addr; |
| }; |
| |
| static inline struct iwch_cq *to_iwch_cq(struct ib_cq *ibcq) |
| { |
| return container_of(ibcq, struct iwch_cq, ibcq); |
| } |
| |
| enum IWCH_QP_FLAGS { |
| QP_QUIESCED = 0x01 |
| }; |
| |
| struct iwch_mpa_attributes { |
| u8 recv_marker_enabled; |
| u8 xmit_marker_enabled; /* iWARP: enable inbound Read Resp. */ |
| u8 crc_enabled; |
| u8 version; /* 0 or 1 */ |
| }; |
| |
| struct iwch_qp_attributes { |
| u32 scq; |
| u32 rcq; |
| u32 sq_num_entries; |
| u32 rq_num_entries; |
| u32 sq_max_sges; |
| u32 sq_max_sges_rdma_write; |
| u32 rq_max_sges; |
| u32 state; |
| u8 enable_rdma_read; |
| u8 enable_rdma_write; /* enable inbound Read Resp. */ |
| u8 enable_bind; |
| u8 enable_mmid0_fastreg; /* Enable STAG0 + Fast-register */ |
| /* |
| * Next QP state. If specify the current state, only the |
| * QP attributes will be modified. |
| */ |
| u32 max_ord; |
| u32 max_ird; |
| u32 pd; /* IN */ |
| u32 next_state; |
| char terminate_buffer[52]; |
| u32 terminate_msg_len; |
| u8 is_terminate_local; |
| struct iwch_mpa_attributes mpa_attr; /* IN-OUT */ |
| struct iwch_ep *llp_stream_handle; |
| char *stream_msg_buf; /* Last stream msg. before Idle -> RTS */ |
| u32 stream_msg_buf_len; /* Only on Idle -> RTS */ |
| }; |
| |
| struct iwch_qp { |
| struct ib_qp ibqp; |
| struct iwch_dev *rhp; |
| struct iwch_ep *ep; |
| struct iwch_qp_attributes attr; |
| struct t3_wq wq; |
| spinlock_t lock; |
| atomic_t refcnt; |
| wait_queue_head_t wait; |
| enum IWCH_QP_FLAGS flags; |
| struct timer_list timer; |
| }; |
| |
| static inline int qp_quiesced(struct iwch_qp *qhp) |
| { |
| return qhp->flags & QP_QUIESCED; |
| } |
| |
| static inline struct iwch_qp *to_iwch_qp(struct ib_qp *ibqp) |
| { |
| return container_of(ibqp, struct iwch_qp, ibqp); |
| } |
| |
| void iwch_qp_add_ref(struct ib_qp *qp); |
| void iwch_qp_rem_ref(struct ib_qp *qp); |
| |
| struct iwch_ucontext { |
| struct ib_ucontext ibucontext; |
| struct cxio_ucontext uctx; |
| u32 key; |
| spinlock_t mmap_lock; |
| struct list_head mmaps; |
| }; |
| |
| static inline struct iwch_ucontext *to_iwch_ucontext(struct ib_ucontext *c) |
| { |
| return container_of(c, struct iwch_ucontext, ibucontext); |
| } |
| |
| struct iwch_mm_entry { |
| struct list_head entry; |
| u64 addr; |
| u32 key; |
| unsigned len; |
| }; |
| |
| static inline struct iwch_mm_entry *remove_mmap(struct iwch_ucontext *ucontext, |
| u32 key, unsigned len) |
| { |
| struct list_head *pos, *nxt; |
| struct iwch_mm_entry *mm; |
| |
| spin_lock(&ucontext->mmap_lock); |
| list_for_each_safe(pos, nxt, &ucontext->mmaps) { |
| |
| mm = list_entry(pos, struct iwch_mm_entry, entry); |
| if (mm->key == key && mm->len == len) { |
| list_del_init(&mm->entry); |
| spin_unlock(&ucontext->mmap_lock); |
| PDBG("%s key 0x%x addr 0x%llx len %d\n", __FUNCTION__, |
| key, (unsigned long long) mm->addr, mm->len); |
| return mm; |
| } |
| } |
| spin_unlock(&ucontext->mmap_lock); |
| return NULL; |
| } |
| |
| static inline void insert_mmap(struct iwch_ucontext *ucontext, |
| struct iwch_mm_entry *mm) |
| { |
| spin_lock(&ucontext->mmap_lock); |
| PDBG("%s key 0x%x addr 0x%llx len %d\n", __FUNCTION__, |
| mm->key, (unsigned long long) mm->addr, mm->len); |
| list_add_tail(&mm->entry, &ucontext->mmaps); |
| spin_unlock(&ucontext->mmap_lock); |
| } |
| |
| enum iwch_qp_attr_mask { |
| IWCH_QP_ATTR_NEXT_STATE = 1 << 0, |
| IWCH_QP_ATTR_ENABLE_RDMA_READ = 1 << 7, |
| IWCH_QP_ATTR_ENABLE_RDMA_WRITE = 1 << 8, |
| IWCH_QP_ATTR_ENABLE_RDMA_BIND = 1 << 9, |
| IWCH_QP_ATTR_MAX_ORD = 1 << 11, |
| IWCH_QP_ATTR_MAX_IRD = 1 << 12, |
| IWCH_QP_ATTR_LLP_STREAM_HANDLE = 1 << 22, |
| IWCH_QP_ATTR_STREAM_MSG_BUFFER = 1 << 23, |
| IWCH_QP_ATTR_MPA_ATTR = 1 << 24, |
| IWCH_QP_ATTR_QP_CONTEXT_ACTIVATE = 1 << 25, |
| IWCH_QP_ATTR_VALID_MODIFY = (IWCH_QP_ATTR_ENABLE_RDMA_READ | |
| IWCH_QP_ATTR_ENABLE_RDMA_WRITE | |
| IWCH_QP_ATTR_MAX_ORD | |
| IWCH_QP_ATTR_MAX_IRD | |
| IWCH_QP_ATTR_LLP_STREAM_HANDLE | |
| IWCH_QP_ATTR_STREAM_MSG_BUFFER | |
| IWCH_QP_ATTR_MPA_ATTR | |
| IWCH_QP_ATTR_QP_CONTEXT_ACTIVATE) |
| }; |
| |
| int iwch_modify_qp(struct iwch_dev *rhp, |
| struct iwch_qp *qhp, |
| enum iwch_qp_attr_mask mask, |
| struct iwch_qp_attributes *attrs, |
| int internal); |
| |
| enum iwch_qp_state { |
| IWCH_QP_STATE_IDLE, |
| IWCH_QP_STATE_RTS, |
| IWCH_QP_STATE_ERROR, |
| IWCH_QP_STATE_TERMINATE, |
| IWCH_QP_STATE_CLOSING, |
| IWCH_QP_STATE_TOT |
| }; |
| |
| static inline int iwch_convert_state(enum ib_qp_state ib_state) |
| { |
| switch (ib_state) { |
| case IB_QPS_RESET: |
| case IB_QPS_INIT: |
| return IWCH_QP_STATE_IDLE; |
| case IB_QPS_RTS: |
| return IWCH_QP_STATE_RTS; |
| case IB_QPS_SQD: |
| return IWCH_QP_STATE_CLOSING; |
| case IB_QPS_SQE: |
| return IWCH_QP_STATE_TERMINATE; |
| case IB_QPS_ERR: |
| return IWCH_QP_STATE_ERROR; |
| default: |
| return -1; |
| } |
| } |
| |
| static inline u32 iwch_ib_to_tpt_access(int acc) |
| { |
| return (acc & IB_ACCESS_REMOTE_WRITE ? TPT_REMOTE_WRITE : 0) | |
| (acc & IB_ACCESS_REMOTE_READ ? TPT_REMOTE_READ : 0) | |
| (acc & IB_ACCESS_LOCAL_WRITE ? TPT_LOCAL_WRITE : 0) | |
| TPT_LOCAL_READ; |
| } |
| |
| static inline u32 iwch_ib_to_mwbind_access(int acc) |
| { |
| return (acc & IB_ACCESS_REMOTE_WRITE ? T3_MEM_ACCESS_REM_WRITE : 0) | |
| (acc & IB_ACCESS_REMOTE_READ ? T3_MEM_ACCESS_REM_READ : 0) | |
| (acc & IB_ACCESS_LOCAL_WRITE ? T3_MEM_ACCESS_LOCAL_WRITE : 0) | |
| T3_MEM_ACCESS_LOCAL_READ; |
| } |
| |
| enum iwch_mmid_state { |
| IWCH_STAG_STATE_VALID, |
| IWCH_STAG_STATE_INVALID |
| }; |
| |
| enum iwch_qp_query_flags { |
| IWCH_QP_QUERY_CONTEXT_NONE = 0x0, /* No ctx; Only attrs */ |
| IWCH_QP_QUERY_CONTEXT_GET = 0x1, /* Get ctx + attrs */ |
| IWCH_QP_QUERY_CONTEXT_SUSPEND = 0x2, /* Not Supported */ |
| |
| /* |
| * Quiesce QP context; Consumer |
| * will NOT replay outstanding WR |
| */ |
| IWCH_QP_QUERY_CONTEXT_QUIESCE = 0x4, |
| IWCH_QP_QUERY_CONTEXT_REMOVE = 0x8, |
| IWCH_QP_QUERY_TEST_USERWRITE = 0x32 /* Test special */ |
| }; |
| |
| int iwch_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, |
| struct ib_send_wr **bad_wr); |
| int iwch_post_receive(struct ib_qp *ibqp, struct ib_recv_wr *wr, |
| struct ib_recv_wr **bad_wr); |
| int iwch_bind_mw(struct ib_qp *qp, |
| struct ib_mw *mw, |
| struct ib_mw_bind *mw_bind); |
| int iwch_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc); |
| int iwch_post_terminate(struct iwch_qp *qhp, struct respQ_msg_t *rsp_msg); |
| int iwch_register_device(struct iwch_dev *dev); |
| void iwch_unregister_device(struct iwch_dev *dev); |
| int iwch_quiesce_qps(struct iwch_cq *chp); |
| int iwch_resume_qps(struct iwch_cq *chp); |
| void stop_read_rep_timer(struct iwch_qp *qhp); |
| int iwch_register_mem(struct iwch_dev *rhp, struct iwch_pd *php, |
| struct iwch_mr *mhp, |
| int shift, |
| __be64 *page_list); |
| int iwch_reregister_mem(struct iwch_dev *rhp, struct iwch_pd *php, |
| struct iwch_mr *mhp, |
| int shift, |
| __be64 *page_list, |
| int npages); |
| int build_phys_page_list(struct ib_phys_buf *buffer_list, |
| int num_phys_buf, |
| u64 *iova_start, |
| u64 *total_size, |
| int *npages, |
| int *shift, |
| __be64 **page_list); |
| |
| |
| #define IWCH_NODE_DESC "cxgb3 Chelsio Communications" |
| |
| #endif |