--- /dev/null
+/*******************************************************************
+ * This file is part of the Emulex RoCE Device Driver for *
+ * RoCE (RDMA over Converged Ethernet) adapters. *
+ * Copyright (C) 2008-2012 Emulex. All rights reserved. *
+ * EMULEX and SLI are trademarks of Emulex. *
+ * www.emulex.com *
+ * *
+ * This program is free software; you can redistribute it and/or *
+ * modify it under the terms of version 2 of the GNU General *
+ * Public License as published by the Free Software Foundation. *
+ * This program is distributed in the hope that it will be useful. *
+ * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
+ * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
+ * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
+ * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
+ * TO BE LEGALLY INVALID. See the GNU General Public License for *
+ * more details, a copy of which can be found in the file COPYING *
+ * included with this package. *
+ *
+ * Contact Information:
+ * linux-drivers@emulex.com
+ *
+ * Emulex
+ * 3333 Susan Street
+ * Costa Mesa, CA 92626
+ *******************************************************************/
+
+#ifndef __OCRDMA_H__
+#define __OCRDMA_H__
+
+#include <linux/mutex.h>
+#include <linux/list.h>
+#include <linux/spinlock.h>
+#include <linux/pci.h>
+
+#include <rdma/ib_verbs.h>
+#include <rdma/ib_user_verbs.h>
+#include <rdma/ib_addr.h>
+
+#include <be_roce.h>
+#include "ocrdma_sli.h"
+
+#define OCRDMA_ROCE_DRV_VERSION "10.6.0.0"
+
+#define OCRDMA_ROCE_DRV_DESC "Emulex OneConnect RoCE Driver"
+#define OCRDMA_NODE_DESC "Emulex OneConnect RoCE HCA"
+
+#define OC_NAME_SH OCRDMA_NODE_DESC "(Skyhawk)"
+#define OC_NAME_UNKNOWN OCRDMA_NODE_DESC "(Unknown)"
+
+#define OC_SKH_DEVICE_PF 0x720
+#define OC_SKH_DEVICE_VF 0x728
+#define OCRDMA_MAX_AH 512
+
+#define OCRDMA_UVERBS(CMD_NAME) (1ull << IB_USER_VERBS_CMD_##CMD_NAME)
+
+#define convert_to_64bit(lo, hi) ((u64)hi << 32 | (u64)lo)
+#define EQ_INTR_PER_SEC_THRSH_HI 150000
+#define EQ_INTR_PER_SEC_THRSH_LOW 100000
+#define EQ_AIC_MAX_EQD 20
+#define EQ_AIC_MIN_EQD 0
+
+void ocrdma_eqd_set_task(struct work_struct *work);
+
+struct ocrdma_dev_attr {
+ u8 fw_ver[32];
+ u32 vendor_id;
+ u32 device_id;
+ u16 max_pd;
+ u16 max_dpp_pds;
+ u16 max_cq;
+ u16 max_cqe;
+ u16 max_qp;
+ u16 max_wqe;
+ u16 max_rqe;
+ u16 max_srq;
+ u32 max_inline_data;
+ int max_send_sge;
+ int max_recv_sge;
+ int max_srq_sge;
+ int max_rdma_sge;
+ int max_mr;
+ u64 max_mr_size;
+ u32 max_num_mr_pbl;
+ int max_mw;
+ int max_fmr;
+ int max_map_per_fmr;
+ int max_pages_per_frmr;
+ u16 max_ord_per_qp;
+ u16 max_ird_per_qp;
+
+ int device_cap_flags;
+ u8 cq_overflow_detect;
+ u8 srq_supported;
+
+ u32 wqe_size;
+ u32 rqe_size;
+ u32 ird_page_size;
+ u8 local_ca_ack_delay;
+ u8 ird;
+ u8 num_ird_pages;
+};
+
+struct ocrdma_dma_mem {
+ void *va;
+ dma_addr_t pa;
+ u32 size;
+};
+
+struct ocrdma_pbl {
+ void *va;
+ dma_addr_t pa;
+};
+
+struct ocrdma_queue_info {
+ void *va;
+ dma_addr_t dma;
+ u32 size;
+ u16 len;
+ u16 entry_size; /* Size of an element in the queue */
+ u16 id; /* qid, where to ring the doorbell. */
+ u16 head, tail;
+ bool created;
+};
+
+struct ocrdma_aic_obj { /* Adaptive interrupt coalescing (AIC) info */
+ u32 prev_eqd;
+ u64 eq_intr_cnt;
+ u64 prev_eq_intr_cnt;
+};
+
+struct ocrdma_eq {
+ struct ocrdma_queue_info q;
+ u32 vector;
+ int cq_cnt;
+ struct ocrdma_dev *dev;
+ char irq_name[32];
+ struct ocrdma_aic_obj aic_obj;
+};
+
+struct ocrdma_mq {
+ struct ocrdma_queue_info sq;
+ struct ocrdma_queue_info cq;
+ bool rearm_cq;
+};
+
+struct mqe_ctx {
+ struct mutex lock; /* for serializing mailbox commands on MQ */
+ wait_queue_head_t cmd_wait;
+ u32 tag;
+ u16 cqe_status;
+ u16 ext_status;
+ bool cmd_done;
+ bool fw_error_state;
+};
+
+struct ocrdma_hw_mr {
+ u32 lkey;
+ u8 fr_mr;
+ u8 remote_atomic;
+ u8 remote_rd;
+ u8 remote_wr;
+ u8 local_rd;
+ u8 local_wr;
+ u8 mw_bind;
+ u8 rsvd;
+ u64 len;
+ struct ocrdma_pbl *pbl_table;
+ u32 num_pbls;
+ u32 num_pbes;
+ u32 pbl_size;
+ u32 pbe_size;
+ u64 fbo;
+ u64 va;
+};
+
+struct ocrdma_mr {
+ struct ib_mr ibmr;
+ struct ib_umem *umem;
+ struct ocrdma_hw_mr hwmr;
+};
+
+struct ocrdma_stats {
+ u8 type;
+ struct ocrdma_dev *dev;
+};
+
+struct ocrdma_pd_resource_mgr {
+ u32 pd_norm_start;
+ u16 pd_norm_count;
+ u16 pd_norm_thrsh;
+ u16 max_normal_pd;
+ u32 pd_dpp_start;
+ u16 pd_dpp_count;
+ u16 pd_dpp_thrsh;
+ u16 max_dpp_pd;
+ u16 dpp_page_index;
+ unsigned long *pd_norm_bitmap;
+ unsigned long *pd_dpp_bitmap;
+ bool pd_prealloc_valid;
+};
+
+struct stats_mem {
+ struct ocrdma_mqe mqe;
+ void *va;
+ dma_addr_t pa;
+ u32 size;
+ char *debugfs_mem;
+};
+
+struct phy_info {
+ u16 auto_speeds_supported;
+ u16 fixed_speeds_supported;
+ u16 phy_type;
+ u16 interface_type;
+};
+
+struct ocrdma_dev {
+ struct ib_device ibdev;
+ struct ocrdma_dev_attr attr;
+
+ struct mutex dev_lock; /* provides syncronise access to device data */
+ spinlock_t flush_q_lock ____cacheline_aligned;
+
+ struct ocrdma_cq **cq_tbl;
+ struct ocrdma_qp **qp_tbl;
+
+ struct ocrdma_eq *eq_tbl;
+ int eq_cnt;
+ struct delayed_work eqd_work;
+ u16 base_eqid;
+ u16 max_eq;
+
+ union ib_gid *sgid_tbl;
+ /* provided synchronization to sgid table for
+ * updating gid entries triggered by notifier.
+ */
+ spinlock_t sgid_lock;
+
+ int gsi_qp_created;
+ struct ocrdma_cq *gsi_sqcq;
+ struct ocrdma_cq *gsi_rqcq;
+
+ struct {
+ struct ocrdma_av *va;
+ dma_addr_t pa;
+ u32 size;
+ u32 num_ah;
+ /* provide synchronization for av
+ * entry allocations.
+ */
+ spinlock_t lock;
+ u32 ahid;
+ struct ocrdma_pbl pbl;
+ } av_tbl;
+
+ void *mbx_cmd;
+ struct ocrdma_mq mq;
+ struct mqe_ctx mqe_ctx;
+
+ struct be_dev_info nic_info;
+ struct phy_info phy;
+ char model_number[32];
+ u32 hba_port_num;
+
+ struct list_head entry;
+ struct rcu_head rcu;
+ int id;
+ u64 *stag_arr;
+ u8 sl; /* service level */
+ bool pfc_state;
+ atomic_t update_sl;
+ u16 pvid;
+ u32 asic_id;
+
+ ulong last_stats_time;
+ struct mutex stats_lock; /* provide synch for debugfs operations */
+ struct stats_mem stats_mem;
+ struct ocrdma_stats rsrc_stats;
+ struct ocrdma_stats rx_stats;
+ struct ocrdma_stats wqe_stats;
+ struct ocrdma_stats tx_stats;
+ struct ocrdma_stats db_err_stats;
+ struct ocrdma_stats tx_qp_err_stats;
+ struct ocrdma_stats rx_qp_err_stats;
+ struct ocrdma_stats tx_dbg_stats;
+ struct ocrdma_stats rx_dbg_stats;
+ struct ocrdma_stats driver_stats;
+ struct ocrdma_stats reset_stats;
+ struct dentry *dir;
+ atomic_t async_err_stats[OCRDMA_MAX_ASYNC_ERRORS];
+ atomic_t cqe_err_stats[OCRDMA_MAX_CQE_ERR];
+ struct ocrdma_pd_resource_mgr *pd_mgr;
+};
+
+struct ocrdma_cq {
+ struct ib_cq ibcq;
+ struct ocrdma_cqe *va;
+ u32 phase;
+ u32 getp; /* pointer to pending wrs to
+ * return to stack, wrap arounds
+ * at max_hw_cqe
+ */
+ u32 max_hw_cqe;
+ bool phase_change;
+ bool deferred_arm, deferred_sol;
+ bool first_arm;
+
+ spinlock_t cq_lock ____cacheline_aligned; /* provide synchronization
+ * to cq polling
+ */
+ /* syncronizes cq completion handler invoked from multiple context */
+ spinlock_t comp_handler_lock ____cacheline_aligned;
+ u16 id;
+ u16 eqn;
+
+ struct ocrdma_ucontext *ucontext;
+ dma_addr_t pa;
+ u32 len;
+ u32 cqe_cnt;
+
+ /* head of all qp's sq and rq for which cqes need to be flushed
+ * by the software.
+ */
+ struct list_head sq_head, rq_head;
+};
+
+struct ocrdma_pd {
+ struct ib_pd ibpd;
+ struct ocrdma_ucontext *uctx;
+ u32 id;
+ int num_dpp_qp;
+ u32 dpp_page;
+ bool dpp_enabled;
+};
+
+struct ocrdma_ah {
+ struct ib_ah ibah;
+ struct ocrdma_av *av;
+ u16 sgid_index;
+ u32 id;
+};
+
+struct ocrdma_qp_hwq_info {
+ u8 *va; /* virtual address */
+ u32 max_sges;
+ u32 head, tail;
+ u32 entry_size;
+ u32 max_cnt;
+ u32 max_wqe_idx;
+ u16 dbid; /* qid, where to ring the doorbell. */
+ u32 len;
+ dma_addr_t pa;
+};
+
+struct ocrdma_srq {
+ struct ib_srq ibsrq;
+ u8 __iomem *db;
+ struct ocrdma_qp_hwq_info rq;
+ u64 *rqe_wr_id_tbl;
+ u32 *idx_bit_fields;
+ u32 bit_fields_len;
+
+ /* provide synchronization to multiple context(s) posting rqe */
+ spinlock_t q_lock ____cacheline_aligned;
+
+ struct ocrdma_pd *pd;
+ u32 id;
+};
+
+struct ocrdma_qp {
+ struct ib_qp ibqp;
+
+ u8 __iomem *sq_db;
+ struct ocrdma_qp_hwq_info sq;
+ struct {
+ uint64_t wrid;
+ uint16_t dpp_wqe_idx;
+ uint16_t dpp_wqe;
+ uint8_t signaled;
+ uint8_t rsvd[3];
+ } *wqe_wr_id_tbl;
+ u32 max_inline_data;
+
+ /* provide synchronization to multiple context(s) posting wqe, rqe */
+ spinlock_t q_lock ____cacheline_aligned;
+ struct ocrdma_cq *sq_cq;
+ /* list maintained per CQ to flush SQ errors */
+ struct list_head sq_entry;
+
+ u8 __iomem *rq_db;
+ struct ocrdma_qp_hwq_info rq;
+ u64 *rqe_wr_id_tbl;
+ struct ocrdma_cq *rq_cq;
+ struct ocrdma_srq *srq;
+ /* list maintained per CQ to flush RQ errors */
+ struct list_head rq_entry;
+
+ enum ocrdma_qp_state state; /* QP state */
+ int cap_flags;
+ u32 max_ord, max_ird;
+
+ u32 id;
+ struct ocrdma_pd *pd;
+
+ enum ib_qp_type qp_type;
+
+ int sgid_idx;
+ u32 qkey;
+ bool dpp_enabled;
+ u8 *ird_q_va;
+ bool signaled;
+};
+
+struct ocrdma_ucontext {
+ struct ib_ucontext ibucontext;
+
+ struct list_head mm_head;
+ struct mutex mm_list_lock; /* protects list entries of mm type */
+ struct ocrdma_pd *cntxt_pd;
+ int pd_in_use;
+
+ struct {
+ u32 *va;
+ dma_addr_t pa;
+ u32 len;
+ } ah_tbl;
+};
+
+struct ocrdma_mm {
+ struct {
+ u64 phy_addr;
+ unsigned long len;
+ } key;
+ struct list_head entry;
+};
+
+static inline struct ocrdma_dev *get_ocrdma_dev(struct ib_device *ibdev)
+{
+ return container_of(ibdev, struct ocrdma_dev, ibdev);
+}
+
+static inline struct ocrdma_ucontext *get_ocrdma_ucontext(struct ib_ucontext
+ *ibucontext)
+{
+ return container_of(ibucontext, struct ocrdma_ucontext, ibucontext);
+}
+
+static inline struct ocrdma_pd *get_ocrdma_pd(struct ib_pd *ibpd)
+{
+ return container_of(ibpd, struct ocrdma_pd, ibpd);
+}
+
+static inline struct ocrdma_cq *get_ocrdma_cq(struct ib_cq *ibcq)
+{
+ return container_of(ibcq, struct ocrdma_cq, ibcq);
+}
+
+static inline struct ocrdma_qp *get_ocrdma_qp(struct ib_qp *ibqp)
+{
+ return container_of(ibqp, struct ocrdma_qp, ibqp);
+}
+
+static inline struct ocrdma_mr *get_ocrdma_mr(struct ib_mr *ibmr)
+{
+ return container_of(ibmr, struct ocrdma_mr, ibmr);
+}
+
+static inline struct ocrdma_ah *get_ocrdma_ah(struct ib_ah *ibah)
+{
+ return container_of(ibah, struct ocrdma_ah, ibah);
+}
+
+static inline struct ocrdma_srq *get_ocrdma_srq(struct ib_srq *ibsrq)
+{
+ return container_of(ibsrq, struct ocrdma_srq, ibsrq);
+}
+
+static inline int is_cqe_valid(struct ocrdma_cq *cq, struct ocrdma_cqe *cqe)
+{
+ int cqe_valid;
+ cqe_valid = le32_to_cpu(cqe->flags_status_srcqpn) & OCRDMA_CQE_VALID;
+ return (cqe_valid == cq->phase);
+}
+
+static inline int is_cqe_for_sq(struct ocrdma_cqe *cqe)
+{
+ return (le32_to_cpu(cqe->flags_status_srcqpn) &
+ OCRDMA_CQE_QTYPE) ? 0 : 1;
+}
+
+static inline int is_cqe_invalidated(struct ocrdma_cqe *cqe)
+{
+ return (le32_to_cpu(cqe->flags_status_srcqpn) &
+ OCRDMA_CQE_INVALIDATE) ? 1 : 0;
+}
+
+static inline int is_cqe_imm(struct ocrdma_cqe *cqe)
+{
+ return (le32_to_cpu(cqe->flags_status_srcqpn) &
+ OCRDMA_CQE_IMM) ? 1 : 0;
+}
+
+static inline int is_cqe_wr_imm(struct ocrdma_cqe *cqe)
+{
+ return (le32_to_cpu(cqe->flags_status_srcqpn) &
+ OCRDMA_CQE_WRITE_IMM) ? 1 : 0;
+}
+
+static inline int ocrdma_resolve_dmac(struct ocrdma_dev *dev,
+ struct ib_ah_attr *ah_attr, u8 *mac_addr)
+{
+ struct in6_addr in6;
+
+ memcpy(&in6, ah_attr->grh.dgid.raw, sizeof(in6));
+ if (rdma_is_multicast_addr(&in6))
+ rdma_get_mcast_mac(&in6, mac_addr);
+ else if (rdma_link_local_addr(&in6))
+ rdma_get_ll_mac(&in6, mac_addr);
+ else
+ memcpy(mac_addr, ah_attr->dmac, ETH_ALEN);
+ return 0;
+}
+
+static inline char *hca_name(struct ocrdma_dev *dev)
+{
+ switch (dev->nic_info.pdev->device) {
+ case OC_SKH_DEVICE_PF:
+ case OC_SKH_DEVICE_VF:
+ return OC_NAME_SH;
+ default:
+ return OC_NAME_UNKNOWN;
+ }
+}
+
+static inline int ocrdma_get_eq_table_index(struct ocrdma_dev *dev,
+ int eqid)
+{
+ int indx;
+
+ for (indx = 0; indx < dev->eq_cnt; indx++) {
+ if (dev->eq_tbl[indx].q.id == eqid)
+ return indx;
+ }
+
+ return -EINVAL;
+}
+
+static inline u8 ocrdma_get_asic_type(struct ocrdma_dev *dev)
+{
+ if (dev->nic_info.dev_family == 0xF && !dev->asic_id) {
+ pci_read_config_dword(
+ dev->nic_info.pdev,
+ OCRDMA_SLI_ASIC_ID_OFFSET, &dev->asic_id);
+ }
+
+ return (dev->asic_id & OCRDMA_SLI_ASIC_GEN_NUM_MASK) >>
+ OCRDMA_SLI_ASIC_GEN_NUM_SHIFT;
+}
+
+static inline u8 ocrdma_get_pfc_prio(u8 *pfc, u8 prio)
+{
+ return *(pfc + prio);
+}
+
+static inline u8 ocrdma_get_app_prio(u8 *app_prio, u8 prio)
+{
+ return *(app_prio + prio);
+}
+
+static inline u8 ocrdma_is_enabled_and_synced(u32 state)
+{ /* May also be used to interpret TC-state, QCN-state
+ * Appl-state and Logical-link-state in future.
+ */
+ return (state & OCRDMA_STATE_FLAG_ENABLED) &&
+ (state & OCRDMA_STATE_FLAG_SYNC);
+}
+
+#endif
Code Review / kvmfornfv.git / blobdiff