| /* |
| * Copyright (c) 2009-2010 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 __IW_CXGB4_H__ |
| #define __IW_CXGB4_H__ |
| |
| #include <linux/mutex.h> |
| #include <linux/list.h> |
| #include <linux/spinlock.h> |
| #include <linux/idr.h> |
| #include <linux/completion.h> |
| #include <linux/netdevice.h> |
| #include <linux/sched.h> |
| #include <linux/pci.h> |
| #include <linux/dma-mapping.h> |
| #include <linux/inet.h> |
| #include <linux/wait.h> |
| #include <linux/kref.h> |
| #include <linux/timer.h> |
| #include <linux/io.h> |
| |
| #include <asm/byteorder.h> |
| |
| #include <net/net_namespace.h> |
| |
| #include <rdma/ib_verbs.h> |
| #include <rdma/iw_cm.h> |
| #include <rdma/rdma_netlink.h> |
| #include <rdma/iw_portmap.h> |
| |
| #include "cxgb4.h" |
| #include "cxgb4_uld.h" |
| #include "l2t.h" |
| #include <rdma/cxgb4-abi.h> |
| |
| #define DRV_NAME "iw_cxgb4" |
| #define MOD DRV_NAME ":" |
| |
| extern int c4iw_debug; |
| #define PDBG(fmt, args...) \ |
| do { \ |
| if (c4iw_debug) \ |
| printk(MOD fmt, ## args); \ |
| } while (0) |
| |
| #include "t4.h" |
| |
| #define PBL_OFF(rdev_p, a) ((a) - (rdev_p)->lldi.vr->pbl.start) |
| #define RQT_OFF(rdev_p, a) ((a) - (rdev_p)->lldi.vr->rq.start) |
| |
| static inline void *cplhdr(struct sk_buff *skb) |
| { |
| return skb->data; |
| } |
| |
| #define C4IW_ID_TABLE_F_RANDOM 1 /* Pseudo-randomize the id's returned */ |
| #define C4IW_ID_TABLE_F_EMPTY 2 /* Table is initially empty */ |
| |
| struct c4iw_id_table { |
| u32 flags; |
| u32 start; /* logical minimal id */ |
| u32 last; /* hint for find */ |
| u32 max; |
| spinlock_t lock; |
| unsigned long *table; |
| }; |
| |
| struct c4iw_resource { |
| struct c4iw_id_table tpt_table; |
| struct c4iw_id_table qid_table; |
| struct c4iw_id_table pdid_table; |
| }; |
| |
| struct c4iw_qid_list { |
| struct list_head entry; |
| u32 qid; |
| }; |
| |
| struct c4iw_dev_ucontext { |
| struct list_head qpids; |
| struct list_head cqids; |
| struct mutex lock; |
| }; |
| |
| enum c4iw_rdev_flags { |
| T4_FATAL_ERROR = (1<<0), |
| T4_STATUS_PAGE_DISABLED = (1<<1), |
| }; |
| |
| struct c4iw_stat { |
| u64 total; |
| u64 cur; |
| u64 max; |
| u64 fail; |
| }; |
| |
| struct c4iw_stats { |
| struct mutex lock; |
| struct c4iw_stat qid; |
| struct c4iw_stat pd; |
| struct c4iw_stat stag; |
| struct c4iw_stat pbl; |
| struct c4iw_stat rqt; |
| struct c4iw_stat ocqp; |
| u64 db_full; |
| u64 db_empty; |
| u64 db_drop; |
| u64 db_state_transitions; |
| u64 db_fc_interruptions; |
| u64 tcam_full; |
| u64 act_ofld_conn_fails; |
| u64 pas_ofld_conn_fails; |
| u64 neg_adv; |
| }; |
| |
| struct c4iw_hw_queue { |
| int t4_eq_status_entries; |
| int t4_max_eq_size; |
| int t4_max_iq_size; |
| int t4_max_rq_size; |
| int t4_max_sq_size; |
| int t4_max_qp_depth; |
| int t4_max_cq_depth; |
| int t4_stat_len; |
| }; |
| |
| struct wr_log_entry { |
| struct timespec post_host_ts; |
| struct timespec poll_host_ts; |
| u64 post_sge_ts; |
| u64 cqe_sge_ts; |
| u64 poll_sge_ts; |
| u16 qid; |
| u16 wr_id; |
| u8 opcode; |
| u8 valid; |
| }; |
| |
| struct c4iw_rdev { |
| struct c4iw_resource resource; |
| u32 qpmask; |
| u32 cqmask; |
| struct c4iw_dev_ucontext uctx; |
| struct gen_pool *pbl_pool; |
| struct gen_pool *rqt_pool; |
| struct gen_pool *ocqp_pool; |
| u32 flags; |
| struct cxgb4_lld_info lldi; |
| unsigned long bar2_pa; |
| void __iomem *bar2_kva; |
| unsigned long oc_mw_pa; |
| void __iomem *oc_mw_kva; |
| struct c4iw_stats stats; |
| struct c4iw_hw_queue hw_queue; |
| struct t4_dev_status_page *status_page; |
| atomic_t wr_log_idx; |
| struct wr_log_entry *wr_log; |
| int wr_log_size; |
| }; |
| |
| static inline int c4iw_fatal_error(struct c4iw_rdev *rdev) |
| { |
| return rdev->flags & T4_FATAL_ERROR; |
| } |
| |
| static inline int c4iw_num_stags(struct c4iw_rdev *rdev) |
| { |
| return (int)(rdev->lldi.vr->stag.size >> 5); |
| } |
| |
| #define C4IW_WR_TO (60*HZ) |
| |
| struct c4iw_wr_wait { |
| struct completion completion; |
| int ret; |
| }; |
| |
| static inline void c4iw_init_wr_wait(struct c4iw_wr_wait *wr_waitp) |
| { |
| wr_waitp->ret = 0; |
| init_completion(&wr_waitp->completion); |
| } |
| |
| static inline void c4iw_wake_up(struct c4iw_wr_wait *wr_waitp, int ret) |
| { |
| wr_waitp->ret = ret; |
| complete(&wr_waitp->completion); |
| } |
| |
| static inline int c4iw_wait_for_reply(struct c4iw_rdev *rdev, |
| struct c4iw_wr_wait *wr_waitp, |
| u32 hwtid, u32 qpid, |
| const char *func) |
| { |
| int ret; |
| |
| if (c4iw_fatal_error(rdev)) { |
| wr_waitp->ret = -EIO; |
| goto out; |
| } |
| |
| ret = wait_for_completion_timeout(&wr_waitp->completion, C4IW_WR_TO); |
| if (!ret) { |
| PDBG("%s - Device %s not responding (disabling device) - tid %u qpid %u\n", |
| func, pci_name(rdev->lldi.pdev), hwtid, qpid); |
| rdev->flags |= T4_FATAL_ERROR; |
| wr_waitp->ret = -EIO; |
| } |
| out: |
| if (wr_waitp->ret) |
| PDBG("%s: FW reply %d tid %u qpid %u\n", |
| pci_name(rdev->lldi.pdev), wr_waitp->ret, hwtid, qpid); |
| return wr_waitp->ret; |
| } |
| |
| enum db_state { |
| NORMAL = 0, |
| FLOW_CONTROL = 1, |
| RECOVERY = 2, |
| STOPPED = 3 |
| }; |
| |
| struct c4iw_dev { |
| struct ib_device ibdev; |
| struct c4iw_rdev rdev; |
| u32 device_cap_flags; |
| struct idr cqidr; |
| struct idr qpidr; |
| struct idr mmidr; |
| spinlock_t lock; |
| struct mutex db_mutex; |
| struct dentry *debugfs_root; |
| enum db_state db_state; |
| struct idr hwtid_idr; |
| struct idr atid_idr; |
| struct idr stid_idr; |
| struct list_head db_fc_list; |
| u32 avail_ird; |
| wait_queue_head_t wait; |
| }; |
| |
| static inline struct c4iw_dev *to_c4iw_dev(struct ib_device *ibdev) |
| { |
| return container_of(ibdev, struct c4iw_dev, ibdev); |
| } |
| |
| static inline struct c4iw_dev *rdev_to_c4iw_dev(struct c4iw_rdev *rdev) |
| { |
| return container_of(rdev, struct c4iw_dev, rdev); |
| } |
| |
| static inline struct c4iw_cq *get_chp(struct c4iw_dev *rhp, u32 cqid) |
| { |
| return idr_find(&rhp->cqidr, cqid); |
| } |
| |
| static inline struct c4iw_qp *get_qhp(struct c4iw_dev *rhp, u32 qpid) |
| { |
| return idr_find(&rhp->qpidr, qpid); |
| } |
| |
| static inline struct c4iw_mr *get_mhp(struct c4iw_dev *rhp, u32 mmid) |
| { |
| return idr_find(&rhp->mmidr, mmid); |
| } |
| |
| static inline int _insert_handle(struct c4iw_dev *rhp, struct idr *idr, |
| void *handle, u32 id, int lock) |
| { |
| int ret; |
| |
| if (lock) { |
| idr_preload(GFP_KERNEL); |
| spin_lock_irq(&rhp->lock); |
| } |
| |
| ret = idr_alloc(idr, handle, id, id + 1, GFP_ATOMIC); |
| |
| if (lock) { |
| spin_unlock_irq(&rhp->lock); |
| idr_preload_end(); |
| } |
| |
| BUG_ON(ret == -ENOSPC); |
| return ret < 0 ? ret : 0; |
| } |
| |
| static inline int insert_handle(struct c4iw_dev *rhp, struct idr *idr, |
| void *handle, u32 id) |
| { |
| return _insert_handle(rhp, idr, handle, id, 1); |
| } |
| |
| static inline int insert_handle_nolock(struct c4iw_dev *rhp, struct idr *idr, |
| void *handle, u32 id) |
| { |
| return _insert_handle(rhp, idr, handle, id, 0); |
| } |
| |
| static inline void _remove_handle(struct c4iw_dev *rhp, struct idr *idr, |
| u32 id, int lock) |
| { |
| if (lock) |
| spin_lock_irq(&rhp->lock); |
| idr_remove(idr, id); |
| if (lock) |
| spin_unlock_irq(&rhp->lock); |
| } |
| |
| static inline void remove_handle(struct c4iw_dev *rhp, struct idr *idr, u32 id) |
| { |
| _remove_handle(rhp, idr, id, 1); |
| } |
| |
| static inline void remove_handle_nolock(struct c4iw_dev *rhp, |
| struct idr *idr, u32 id) |
| { |
| _remove_handle(rhp, idr, id, 0); |
| } |
| |
| extern uint c4iw_max_read_depth; |
| |
| static inline int cur_max_read_depth(struct c4iw_dev *dev) |
| { |
| return min(dev->rdev.lldi.max_ordird_qp, c4iw_max_read_depth); |
| } |
| |
| struct c4iw_pd { |
| struct ib_pd ibpd; |
| u32 pdid; |
| struct c4iw_dev *rhp; |
| }; |
| |
| static inline struct c4iw_pd *to_c4iw_pd(struct ib_pd *ibpd) |
| { |
| return container_of(ibpd, struct c4iw_pd, ibpd); |
| } |
| |
| struct tpt_attributes { |
| u64 len; |
| u64 va_fbo; |
| enum fw_ri_mem_perms perms; |
| u32 stag; |
| u32 pdid; |
| u32 qpid; |
| u32 pbl_addr; |
| u32 pbl_size; |
| u32 state:1; |
| u32 type:2; |
| u32 rsvd:1; |
| u32 remote_invaliate_disable:1; |
| u32 zbva:1; |
| u32 mw_bind_enable:1; |
| u32 page_size:5; |
| }; |
| |
| struct c4iw_mr { |
| struct ib_mr ibmr; |
| struct ib_umem *umem; |
| struct c4iw_dev *rhp; |
| struct sk_buff *dereg_skb; |
| u64 kva; |
| struct tpt_attributes attr; |
| u64 *mpl; |
| dma_addr_t mpl_addr; |
| u32 max_mpl_len; |
| u32 mpl_len; |
| }; |
| |
| static inline struct c4iw_mr *to_c4iw_mr(struct ib_mr *ibmr) |
| { |
| return container_of(ibmr, struct c4iw_mr, ibmr); |
| } |
| |
| struct c4iw_mw { |
| struct ib_mw ibmw; |
| struct c4iw_dev *rhp; |
| struct sk_buff *dereg_skb; |
| u64 kva; |
| struct tpt_attributes attr; |
| }; |
| |
| static inline struct c4iw_mw *to_c4iw_mw(struct ib_mw *ibmw) |
| { |
| return container_of(ibmw, struct c4iw_mw, ibmw); |
| } |
| |
| struct c4iw_cq { |
| struct ib_cq ibcq; |
| struct c4iw_dev *rhp; |
| struct sk_buff *destroy_skb; |
| struct t4_cq cq; |
| spinlock_t lock; |
| spinlock_t comp_handler_lock; |
| atomic_t refcnt; |
| wait_queue_head_t wait; |
| }; |
| |
| static inline struct c4iw_cq *to_c4iw_cq(struct ib_cq *ibcq) |
| { |
| return container_of(ibcq, struct c4iw_cq, ibcq); |
| } |
| |
| struct c4iw_mpa_attributes { |
| u8 initiator; |
| u8 recv_marker_enabled; |
| u8 xmit_marker_enabled; |
| u8 crc_enabled; |
| u8 enhanced_rdma_conn; |
| u8 version; |
| u8 p2p_type; |
| }; |
| |
| struct c4iw_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; |
| u8 enable_bind; |
| u8 enable_mmid0_fastreg; |
| u32 max_ord; |
| u32 max_ird; |
| u32 pd; |
| u32 next_state; |
| char terminate_buffer[52]; |
| u32 terminate_msg_len; |
| u8 is_terminate_local; |
| struct c4iw_mpa_attributes mpa_attr; |
| struct c4iw_ep *llp_stream_handle; |
| u8 layer_etype; |
| u8 ecode; |
| u16 sq_db_inc; |
| u16 rq_db_inc; |
| u8 send_term; |
| }; |
| |
| struct c4iw_qp { |
| struct ib_qp ibqp; |
| struct list_head db_fc_entry; |
| struct c4iw_dev *rhp; |
| struct c4iw_ep *ep; |
| struct c4iw_qp_attributes attr; |
| struct t4_wq wq; |
| spinlock_t lock; |
| struct mutex mutex; |
| struct kref kref; |
| wait_queue_head_t wait; |
| struct timer_list timer; |
| int sq_sig_all; |
| struct completion rq_drained; |
| struct completion sq_drained; |
| }; |
| |
| static inline struct c4iw_qp *to_c4iw_qp(struct ib_qp *ibqp) |
| { |
| return container_of(ibqp, struct c4iw_qp, ibqp); |
| } |
| |
| struct c4iw_ucontext { |
| struct ib_ucontext ibucontext; |
| struct c4iw_dev_ucontext uctx; |
| u32 key; |
| spinlock_t mmap_lock; |
| struct list_head mmaps; |
| }; |
| |
| static inline struct c4iw_ucontext *to_c4iw_ucontext(struct ib_ucontext *c) |
| { |
| return container_of(c, struct c4iw_ucontext, ibucontext); |
| } |
| |
| struct c4iw_mm_entry { |
| struct list_head entry; |
| u64 addr; |
| u32 key; |
| unsigned len; |
| }; |
| |
| static inline struct c4iw_mm_entry *remove_mmap(struct c4iw_ucontext *ucontext, |
| u32 key, unsigned len) |
| { |
| struct list_head *pos, *nxt; |
| struct c4iw_mm_entry *mm; |
| |
| spin_lock(&ucontext->mmap_lock); |
| list_for_each_safe(pos, nxt, &ucontext->mmaps) { |
| |
| mm = list_entry(pos, struct c4iw_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", __func__, |
| key, (unsigned long long) mm->addr, mm->len); |
| return mm; |
| } |
| } |
| spin_unlock(&ucontext->mmap_lock); |
| return NULL; |
| } |
| |
| static inline void insert_mmap(struct c4iw_ucontext *ucontext, |
| struct c4iw_mm_entry *mm) |
| { |
| spin_lock(&ucontext->mmap_lock); |
| PDBG("%s key 0x%x addr 0x%llx len %d\n", __func__, |
| mm->key, (unsigned long long) mm->addr, mm->len); |
| list_add_tail(&mm->entry, &ucontext->mmaps); |
| spin_unlock(&ucontext->mmap_lock); |
| } |
| |
| enum c4iw_qp_attr_mask { |
| C4IW_QP_ATTR_NEXT_STATE = 1 << 0, |
| C4IW_QP_ATTR_SQ_DB = 1<<1, |
| C4IW_QP_ATTR_RQ_DB = 1<<2, |
| C4IW_QP_ATTR_ENABLE_RDMA_READ = 1 << 7, |
| C4IW_QP_ATTR_ENABLE_RDMA_WRITE = 1 << 8, |
| C4IW_QP_ATTR_ENABLE_RDMA_BIND = 1 << 9, |
| C4IW_QP_ATTR_MAX_ORD = 1 << 11, |
| C4IW_QP_ATTR_MAX_IRD = 1 << 12, |
| C4IW_QP_ATTR_LLP_STREAM_HANDLE = 1 << 22, |
| C4IW_QP_ATTR_STREAM_MSG_BUFFER = 1 << 23, |
| C4IW_QP_ATTR_MPA_ATTR = 1 << 24, |
| C4IW_QP_ATTR_QP_CONTEXT_ACTIVATE = 1 << 25, |
| C4IW_QP_ATTR_VALID_MODIFY = (C4IW_QP_ATTR_ENABLE_RDMA_READ | |
| C4IW_QP_ATTR_ENABLE_RDMA_WRITE | |
| C4IW_QP_ATTR_MAX_ORD | |
| C4IW_QP_ATTR_MAX_IRD | |
| C4IW_QP_ATTR_LLP_STREAM_HANDLE | |
| C4IW_QP_ATTR_STREAM_MSG_BUFFER | |
| C4IW_QP_ATTR_MPA_ATTR | |
| C4IW_QP_ATTR_QP_CONTEXT_ACTIVATE) |
| }; |
| |
| int c4iw_modify_qp(struct c4iw_dev *rhp, |
| struct c4iw_qp *qhp, |
| enum c4iw_qp_attr_mask mask, |
| struct c4iw_qp_attributes *attrs, |
| int internal); |
| |
| enum c4iw_qp_state { |
| C4IW_QP_STATE_IDLE, |
| C4IW_QP_STATE_RTS, |
| C4IW_QP_STATE_ERROR, |
| C4IW_QP_STATE_TERMINATE, |
| C4IW_QP_STATE_CLOSING, |
| C4IW_QP_STATE_TOT |
| }; |
| |
| static inline int c4iw_convert_state(enum ib_qp_state ib_state) |
| { |
| switch (ib_state) { |
| case IB_QPS_RESET: |
| case IB_QPS_INIT: |
| return C4IW_QP_STATE_IDLE; |
| case IB_QPS_RTS: |
| return C4IW_QP_STATE_RTS; |
| case IB_QPS_SQD: |
| return C4IW_QP_STATE_CLOSING; |
| case IB_QPS_SQE: |
| return C4IW_QP_STATE_TERMINATE; |
| case IB_QPS_ERR: |
| return C4IW_QP_STATE_ERROR; |
| default: |
| return -1; |
| } |
| } |
| |
| static inline int to_ib_qp_state(int c4iw_qp_state) |
| { |
| switch (c4iw_qp_state) { |
| case C4IW_QP_STATE_IDLE: |
| return IB_QPS_INIT; |
| case C4IW_QP_STATE_RTS: |
| return IB_QPS_RTS; |
| case C4IW_QP_STATE_CLOSING: |
| return IB_QPS_SQD; |
| case C4IW_QP_STATE_TERMINATE: |
| return IB_QPS_SQE; |
| case C4IW_QP_STATE_ERROR: |
| return IB_QPS_ERR; |
| } |
| return IB_QPS_ERR; |
| } |
| |
| static inline u32 c4iw_ib_to_tpt_access(int a) |
| { |
| return (a & IB_ACCESS_REMOTE_WRITE ? FW_RI_MEM_ACCESS_REM_WRITE : 0) | |
| (a & IB_ACCESS_REMOTE_READ ? FW_RI_MEM_ACCESS_REM_READ : 0) | |
| (a & IB_ACCESS_LOCAL_WRITE ? FW_RI_MEM_ACCESS_LOCAL_WRITE : 0) | |
| FW_RI_MEM_ACCESS_LOCAL_READ; |
| } |
| |
| static inline u32 c4iw_ib_to_tpt_bind_access(int acc) |
| { |
| return (acc & IB_ACCESS_REMOTE_WRITE ? FW_RI_MEM_ACCESS_REM_WRITE : 0) | |
| (acc & IB_ACCESS_REMOTE_READ ? FW_RI_MEM_ACCESS_REM_READ : 0); |
| } |
| |
| enum c4iw_mmid_state { |
| C4IW_STAG_STATE_VALID, |
| C4IW_STAG_STATE_INVALID |
| }; |
| |
| #define C4IW_NODE_DESC "cxgb4 Chelsio Communications" |
| |
| #define MPA_KEY_REQ "MPA ID Req Frame" |
| #define MPA_KEY_REP "MPA ID Rep Frame" |
| |
| #define MPA_MAX_PRIVATE_DATA 256 |
| #define MPA_ENHANCED_RDMA_CONN 0x10 |
| #define MPA_REJECT 0x20 |
| #define MPA_CRC 0x40 |
| #define MPA_MARKERS 0x80 |
| #define MPA_FLAGS_MASK 0xE0 |
| |
| #define MPA_V2_PEER2PEER_MODEL 0x8000 |
| #define MPA_V2_ZERO_LEN_FPDU_RTR 0x4000 |
| #define MPA_V2_RDMA_WRITE_RTR 0x8000 |
| #define MPA_V2_RDMA_READ_RTR 0x4000 |
| #define MPA_V2_IRD_ORD_MASK 0x3FFF |
| |
| #define c4iw_put_ep(ep) { \ |
| PDBG("put_ep (via %s:%u) ep %p refcnt %d\n", __func__, __LINE__, \ |
| ep, atomic_read(&((ep)->kref.refcount))); \ |
| WARN_ON(atomic_read(&((ep)->kref.refcount)) < 1); \ |
| kref_put(&((ep)->kref), _c4iw_free_ep); \ |
| } |
| |
| #define c4iw_get_ep(ep) { \ |
| PDBG("get_ep (via %s:%u) ep %p, refcnt %d\n", __func__, __LINE__, \ |
| ep, atomic_read(&((ep)->kref.refcount))); \ |
| kref_get(&((ep)->kref)); \ |
| } |
| void _c4iw_free_ep(struct kref *kref); |
| |
| struct mpa_message { |
| u8 key[16]; |
| u8 flags; |
| u8 revision; |
| __be16 private_data_size; |
| u8 private_data[0]; |
| }; |
| |
| struct mpa_v2_conn_params { |
| __be16 ird; |
| __be16 ord; |
| }; |
| |
| struct terminate_message { |
| u8 layer_etype; |
| u8 ecode; |
| __be16 hdrct_rsvd; |
| u8 len_hdrs[0]; |
| }; |
| |
| #define TERM_MAX_LENGTH (sizeof(struct terminate_message) + 2 + 18 + 28) |
| |
| enum c4iw_layers_types { |
| LAYER_RDMAP = 0x00, |
| LAYER_DDP = 0x10, |
| LAYER_MPA = 0x20, |
| RDMAP_LOCAL_CATA = 0x00, |
| RDMAP_REMOTE_PROT = 0x01, |
| RDMAP_REMOTE_OP = 0x02, |
| DDP_LOCAL_CATA = 0x00, |
| DDP_TAGGED_ERR = 0x01, |
| DDP_UNTAGGED_ERR = 0x02, |
| DDP_LLP = 0x03 |
| }; |
| |
| enum c4iw_rdma_ecodes { |
| RDMAP_INV_STAG = 0x00, |
| RDMAP_BASE_BOUNDS = 0x01, |
| RDMAP_ACC_VIOL = 0x02, |
| RDMAP_STAG_NOT_ASSOC = 0x03, |
| RDMAP_TO_WRAP = 0x04, |
| RDMAP_INV_VERS = 0x05, |
| RDMAP_INV_OPCODE = 0x06, |
| RDMAP_STREAM_CATA = 0x07, |
| RDMAP_GLOBAL_CATA = 0x08, |
| RDMAP_CANT_INV_STAG = 0x09, |
| RDMAP_UNSPECIFIED = 0xff |
| }; |
| |
| enum c4iw_ddp_ecodes { |
| DDPT_INV_STAG = 0x00, |
| DDPT_BASE_BOUNDS = 0x01, |
| DDPT_STAG_NOT_ASSOC = 0x02, |
| DDPT_TO_WRAP = 0x03, |
| DDPT_INV_VERS = 0x04, |
| DDPU_INV_QN = 0x01, |
| DDPU_INV_MSN_NOBUF = 0x02, |
| DDPU_INV_MSN_RANGE = 0x03, |
| DDPU_INV_MO = 0x04, |
| DDPU_MSG_TOOBIG = 0x05, |
| DDPU_INV_VERS = 0x06 |
| }; |
| |
| enum c4iw_mpa_ecodes { |
| MPA_CRC_ERR = 0x02, |
| MPA_MARKER_ERR = 0x03, |
| MPA_LOCAL_CATA = 0x05, |
| MPA_INSUFF_IRD = 0x06, |
| MPA_NOMATCH_RTR = 0x07, |
| }; |
| |
| enum c4iw_ep_state { |
| IDLE = 0, |
| LISTEN, |
| CONNECTING, |
| MPA_REQ_WAIT, |
| MPA_REQ_SENT, |
| MPA_REQ_RCVD, |
| MPA_REP_SENT, |
| FPDU_MODE, |
| ABORTING, |
| CLOSING, |
| MORIBUND, |
| DEAD, |
| }; |
| |
| enum c4iw_ep_flags { |
| PEER_ABORT_IN_PROGRESS = 0, |
| ABORT_REQ_IN_PROGRESS = 1, |
| RELEASE_RESOURCES = 2, |
| CLOSE_SENT = 3, |
| TIMEOUT = 4, |
| QP_REFERENCED = 5, |
| STOP_MPA_TIMER = 7, |
| }; |
| |
| enum c4iw_ep_history { |
| ACT_OPEN_REQ = 0, |
| ACT_OFLD_CONN = 1, |
| ACT_OPEN_RPL = 2, |
| ACT_ESTAB = 3, |
| PASS_ACCEPT_REQ = 4, |
| PASS_ESTAB = 5, |
| ABORT_UPCALL = 6, |
| ESTAB_UPCALL = 7, |
| CLOSE_UPCALL = 8, |
| ULP_ACCEPT = 9, |
| ULP_REJECT = 10, |
| TIMEDOUT = 11, |
| PEER_ABORT = 12, |
| PEER_CLOSE = 13, |
| CONNREQ_UPCALL = 14, |
| ABORT_CONN = 15, |
| DISCONN_UPCALL = 16, |
| EP_DISC_CLOSE = 17, |
| EP_DISC_ABORT = 18, |
| CONN_RPL_UPCALL = 19, |
| ACT_RETRY_NOMEM = 20, |
| ACT_RETRY_INUSE = 21, |
| CLOSE_CON_RPL = 22, |
| EP_DISC_FAIL = 24, |
| QP_REFED = 25, |
| QP_DEREFED = 26, |
| CM_ID_REFED = 27, |
| CM_ID_DEREFED = 28, |
| }; |
| |
| enum conn_pre_alloc_buffers { |
| CN_ABORT_REQ_BUF, |
| CN_ABORT_RPL_BUF, |
| CN_CLOSE_CON_REQ_BUF, |
| CN_DESTROY_BUF, |
| CN_FLOWC_BUF, |
| CN_MAX_CON_BUF |
| }; |
| |
| #define FLOWC_LEN 80 |
| union cpl_wr_size { |
| struct cpl_abort_req abrt_req; |
| struct cpl_abort_rpl abrt_rpl; |
| struct fw_ri_wr ri_req; |
| struct cpl_close_con_req close_req; |
| char flowc_buf[FLOWC_LEN]; |
| }; |
| |
| struct c4iw_ep_common { |
| struct iw_cm_id *cm_id; |
| struct c4iw_qp *qp; |
| struct c4iw_dev *dev; |
| struct sk_buff_head ep_skb_list; |
| enum c4iw_ep_state state; |
| struct kref kref; |
| struct mutex mutex; |
| struct sockaddr_storage local_addr; |
| struct sockaddr_storage remote_addr; |
| struct c4iw_wr_wait wr_wait; |
| unsigned long flags; |
| unsigned long history; |
| }; |
| |
| struct c4iw_listen_ep { |
| struct c4iw_ep_common com; |
| unsigned int stid; |
| int backlog; |
| }; |
| |
| struct c4iw_ep_stats { |
| unsigned connect_neg_adv; |
| unsigned abort_neg_adv; |
| }; |
| |
| struct c4iw_ep { |
| struct c4iw_ep_common com; |
| struct c4iw_ep *parent_ep; |
| struct timer_list timer; |
| struct list_head entry; |
| unsigned int atid; |
| u32 hwtid; |
| u32 snd_seq; |
| u32 rcv_seq; |
| struct l2t_entry *l2t; |
| struct dst_entry *dst; |
| struct sk_buff *mpa_skb; |
| struct c4iw_mpa_attributes mpa_attr; |
| u8 mpa_pkt[sizeof(struct mpa_message) + MPA_MAX_PRIVATE_DATA]; |
| unsigned int mpa_pkt_len; |
| u32 ird; |
| u32 ord; |
| u32 smac_idx; |
| u32 tx_chan; |
| u32 mtu; |
| u16 mss; |
| u16 emss; |
| u16 plen; |
| u16 rss_qid; |
| u16 txq_idx; |
| u16 ctrlq_idx; |
| u8 tos; |
| u8 retry_with_mpa_v1; |
| u8 tried_with_mpa_v1; |
| unsigned int retry_count; |
| int snd_win; |
| int rcv_win; |
| struct c4iw_ep_stats stats; |
| }; |
| |
| static inline struct c4iw_ep *to_ep(struct iw_cm_id *cm_id) |
| { |
| return cm_id->provider_data; |
| } |
| |
| static inline struct c4iw_listen_ep *to_listen_ep(struct iw_cm_id *cm_id) |
| { |
| return cm_id->provider_data; |
| } |
| |
| static inline int ocqp_supported(const struct cxgb4_lld_info *infop) |
| { |
| #if defined(__i386__) || defined(__x86_64__) || defined(CONFIG_PPC64) |
| return infop->vr->ocq.size > 0; |
| #else |
| return 0; |
| #endif |
| } |
| |
| u32 c4iw_id_alloc(struct c4iw_id_table *alloc); |
| void c4iw_id_free(struct c4iw_id_table *alloc, u32 obj); |
| int c4iw_id_table_alloc(struct c4iw_id_table *alloc, u32 start, u32 num, |
| u32 reserved, u32 flags); |
| void c4iw_id_table_free(struct c4iw_id_table *alloc); |
| |
| typedef int (*c4iw_handler_func)(struct c4iw_dev *dev, struct sk_buff *skb); |
| |
| int c4iw_ep_redirect(void *ctx, struct dst_entry *old, struct dst_entry *new, |
| struct l2t_entry *l2t); |
| void c4iw_put_qpid(struct c4iw_rdev *rdev, u32 qpid, |
| struct c4iw_dev_ucontext *uctx); |
| u32 c4iw_get_resource(struct c4iw_id_table *id_table); |
| void c4iw_put_resource(struct c4iw_id_table *id_table, u32 entry); |
| int c4iw_init_resource(struct c4iw_rdev *rdev, u32 nr_tpt, u32 nr_pdid); |
| int c4iw_init_ctrl_qp(struct c4iw_rdev *rdev); |
| int c4iw_pblpool_create(struct c4iw_rdev *rdev); |
| int c4iw_rqtpool_create(struct c4iw_rdev *rdev); |
| int c4iw_ocqp_pool_create(struct c4iw_rdev *rdev); |
| void c4iw_pblpool_destroy(struct c4iw_rdev *rdev); |
| void c4iw_rqtpool_destroy(struct c4iw_rdev *rdev); |
| void c4iw_ocqp_pool_destroy(struct c4iw_rdev *rdev); |
| void c4iw_destroy_resource(struct c4iw_resource *rscp); |
| int c4iw_destroy_ctrl_qp(struct c4iw_rdev *rdev); |
| int c4iw_register_device(struct c4iw_dev *dev); |
| void c4iw_unregister_device(struct c4iw_dev *dev); |
| int __init c4iw_cm_init(void); |
| void c4iw_cm_term(void); |
| void c4iw_release_dev_ucontext(struct c4iw_rdev *rdev, |
| struct c4iw_dev_ucontext *uctx); |
| void c4iw_init_dev_ucontext(struct c4iw_rdev *rdev, |
| struct c4iw_dev_ucontext *uctx); |
| int c4iw_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc); |
| int c4iw_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, |
| struct ib_send_wr **bad_wr); |
| int c4iw_post_receive(struct ib_qp *ibqp, struct ib_recv_wr *wr, |
| struct ib_recv_wr **bad_wr); |
| int c4iw_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param); |
| int c4iw_create_listen(struct iw_cm_id *cm_id, int backlog); |
| int c4iw_destroy_listen(struct iw_cm_id *cm_id); |
| int c4iw_accept_cr(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param); |
| int c4iw_reject_cr(struct iw_cm_id *cm_id, const void *pdata, u8 pdata_len); |
| void c4iw_qp_add_ref(struct ib_qp *qp); |
| void c4iw_qp_rem_ref(struct ib_qp *qp); |
| struct ib_mr *c4iw_alloc_mr(struct ib_pd *pd, |
| enum ib_mr_type mr_type, |
| u32 max_num_sg); |
| int c4iw_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg, int sg_nents, |
| unsigned int *sg_offset); |
| int c4iw_dealloc_mw(struct ib_mw *mw); |
| struct ib_mw *c4iw_alloc_mw(struct ib_pd *pd, enum ib_mw_type type, |
| struct ib_udata *udata); |
| struct ib_mr *c4iw_reg_user_mr(struct ib_pd *pd, u64 start, |
| u64 length, u64 virt, int acc, |
| struct ib_udata *udata); |
| struct ib_mr *c4iw_get_dma_mr(struct ib_pd *pd, int acc); |
| int c4iw_dereg_mr(struct ib_mr *ib_mr); |
| int c4iw_destroy_cq(struct ib_cq *ib_cq); |
| struct ib_cq *c4iw_create_cq(struct ib_device *ibdev, |
| const struct ib_cq_init_attr *attr, |
| struct ib_ucontext *ib_context, |
| struct ib_udata *udata); |
| int c4iw_resize_cq(struct ib_cq *cq, int cqe, struct ib_udata *udata); |
| int c4iw_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags flags); |
| int c4iw_destroy_qp(struct ib_qp *ib_qp); |
| struct ib_qp *c4iw_create_qp(struct ib_pd *pd, |
| struct ib_qp_init_attr *attrs, |
| struct ib_udata *udata); |
| int c4iw_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, |
| int attr_mask, struct ib_udata *udata); |
| int c4iw_ib_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, |
| int attr_mask, struct ib_qp_init_attr *init_attr); |
| struct ib_qp *c4iw_get_qp(struct ib_device *dev, int qpn); |
| u32 c4iw_rqtpool_alloc(struct c4iw_rdev *rdev, int size); |
| void c4iw_rqtpool_free(struct c4iw_rdev *rdev, u32 addr, int size); |
| u32 c4iw_pblpool_alloc(struct c4iw_rdev *rdev, int size); |
| void c4iw_pblpool_free(struct c4iw_rdev *rdev, u32 addr, int size); |
| u32 c4iw_ocqp_pool_alloc(struct c4iw_rdev *rdev, int size); |
| void c4iw_ocqp_pool_free(struct c4iw_rdev *rdev, u32 addr, int size); |
| int c4iw_ofld_send(struct c4iw_rdev *rdev, struct sk_buff *skb); |
| void c4iw_flush_hw_cq(struct c4iw_cq *chp); |
| void c4iw_count_rcqes(struct t4_cq *cq, struct t4_wq *wq, int *count); |
| int c4iw_ep_disconnect(struct c4iw_ep *ep, int abrupt, gfp_t gfp); |
| int c4iw_flush_rq(struct t4_wq *wq, struct t4_cq *cq, int count); |
| int c4iw_flush_sq(struct c4iw_qp *qhp); |
| int c4iw_ev_handler(struct c4iw_dev *rnicp, u32 qid); |
| u16 c4iw_rqes_posted(struct c4iw_qp *qhp); |
| int c4iw_post_terminate(struct c4iw_qp *qhp, struct t4_cqe *err_cqe); |
| u32 c4iw_get_cqid(struct c4iw_rdev *rdev, struct c4iw_dev_ucontext *uctx); |
| void c4iw_put_cqid(struct c4iw_rdev *rdev, u32 qid, |
| struct c4iw_dev_ucontext *uctx); |
| u32 c4iw_get_qpid(struct c4iw_rdev *rdev, struct c4iw_dev_ucontext *uctx); |
| void c4iw_put_qpid(struct c4iw_rdev *rdev, u32 qid, |
| struct c4iw_dev_ucontext *uctx); |
| void c4iw_ev_dispatch(struct c4iw_dev *dev, struct t4_cqe *err_cqe); |
| |
| extern struct cxgb4_client t4c_client; |
| extern c4iw_handler_func c4iw_handlers[NUM_CPL_CMDS]; |
| void __iomem *c4iw_bar2_addrs(struct c4iw_rdev *rdev, unsigned int qid, |
| enum cxgb4_bar2_qtype qtype, |
| unsigned int *pbar2_qid, u64 *pbar2_pa); |
| extern void c4iw_log_wr_stats(struct t4_wq *wq, struct t4_cqe *cqe); |
| extern int c4iw_wr_log; |
| extern int db_fc_threshold; |
| extern int db_coalescing_threshold; |
| extern int use_dsgl; |
| void c4iw_drain_rq(struct ib_qp *qp); |
| void c4iw_drain_sq(struct ib_qp *qp); |
| |
| |
| #endif |