/* QLogic qedr NIC Driver * Copyright (c) 2015-2016 QLogic Corporation * * 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 __QEDR_H__ #define __QEDR_H__ #include #include #include #include #include #include #include #include #include "qedr_hsi_rdma.h" #define QEDR_NODE_DESC "QLogic 579xx RoCE HCA" #define DP_NAME(_dev) dev_name(&(_dev)->ibdev.dev) #define IS_IWARP(_dev) ((_dev)->rdma_type == QED_RDMA_TYPE_IWARP) #define IS_ROCE(_dev) ((_dev)->rdma_type == QED_RDMA_TYPE_ROCE) #define DP_DEBUG(dev, module, fmt, ...) \ pr_debug("(%s) " module ": " fmt, \ DP_NAME(dev) ? DP_NAME(dev) : "", ## __VA_ARGS__) #define QEDR_MSG_INIT "INIT" #define QEDR_MSG_MISC "MISC" #define QEDR_MSG_CQ " CQ" #define QEDR_MSG_MR " MR" #define QEDR_MSG_RQ " RQ" #define QEDR_MSG_SQ " SQ" #define QEDR_MSG_QP " QP" #define QEDR_MSG_SRQ " SRQ" #define QEDR_MSG_GSI " GSI" #define QEDR_MSG_IWARP " IW" #define QEDR_CQ_MAGIC_NUMBER (0x11223344) #define FW_PAGE_SIZE (RDMA_RING_PAGE_SIZE) #define FW_PAGE_SHIFT (12) struct qedr_dev; struct qedr_cnq { struct qedr_dev *dev; struct qed_chain pbl; struct qed_sb_info *sb; char name[32]; u64 n_comp; __le16 *hw_cons_ptr; u8 index; }; #define QEDR_MAX_SGID 128 struct qedr_device_attr { u32 vendor_id; u32 vendor_part_id; u32 hw_ver; u64 fw_ver; u64 node_guid; u64 sys_image_guid; u8 max_cnq; u8 max_sge; u16 max_inline; u32 max_sqe; u32 max_rqe; u8 max_qp_resp_rd_atomic_resc; u8 max_qp_req_rd_atomic_resc; u64 max_dev_resp_rd_atomic_resc; u32 max_cq; u32 max_qp; u32 max_mr; u64 max_mr_size; u32 max_cqe; u32 max_mw; u32 max_fmr; u32 max_mr_mw_fmr_pbl; u64 max_mr_mw_fmr_size; u32 max_pd; u32 max_ah; u8 max_pkey; u32 max_srq; u32 max_srq_wr; u8 max_srq_sge; u8 max_stats_queues; u32 dev_caps; u64 page_size_caps; u8 dev_ack_delay; u32 reserved_lkey; u32 bad_pkey_counter; struct qed_rdma_events events; }; #define QEDR_ENET_STATE_BIT (0) struct qedr_dev { struct ib_device ibdev; struct qed_dev *cdev; struct pci_dev *pdev; struct net_device *ndev; enum ib_atomic_cap atomic_cap; void *rdma_ctx; struct qedr_device_attr attr; const struct qed_rdma_ops *ops; struct qed_int_info int_info; struct qed_sb_info *sb_array; struct qedr_cnq *cnq_array; int num_cnq; int sb_start; void __iomem *db_addr; u64 db_phys_addr; u32 db_size; u16 dpi; union ib_gid *sgid_tbl; /* Lock for sgid table */ spinlock_t sgid_lock; u64 guid; u32 dp_module; u8 dp_level; u8 num_hwfns; u8 gsi_ll2_handle; uint wq_multiplier; u8 gsi_ll2_mac_address[ETH_ALEN]; int gsi_qp_created; struct qedr_cq *gsi_sqcq; struct qedr_cq *gsi_rqcq; struct qedr_qp *gsi_qp; enum qed_rdma_type rdma_type; struct xarray qps; struct xarray srqs; struct workqueue_struct *iwarp_wq; u16 iwarp_max_mtu; unsigned long enet_state; u8 user_dpm_enabled; }; #define QEDR_MAX_SQ_PBL (0x8000) #define QEDR_MAX_SQ_PBL_ENTRIES (0x10000 / sizeof(void *)) #define QEDR_SQE_ELEMENT_SIZE (sizeof(struct rdma_sq_sge)) #define QEDR_MAX_SQE_ELEMENTS_PER_SQE (ROCE_REQ_MAX_SINGLE_SQ_WQE_SIZE / \ QEDR_SQE_ELEMENT_SIZE) #define QEDR_MAX_SQE_ELEMENTS_PER_PAGE ((RDMA_RING_PAGE_SIZE) / \ QEDR_SQE_ELEMENT_SIZE) #define QEDR_MAX_SQE ((QEDR_MAX_SQ_PBL_ENTRIES) *\ (RDMA_RING_PAGE_SIZE) / \ (QEDR_SQE_ELEMENT_SIZE) /\ (QEDR_MAX_SQE_ELEMENTS_PER_SQE)) /* RQ */ #define QEDR_MAX_RQ_PBL (0x2000) #define QEDR_MAX_RQ_PBL_ENTRIES (0x10000 / sizeof(void *)) #define QEDR_RQE_ELEMENT_SIZE (sizeof(struct rdma_rq_sge)) #define QEDR_MAX_RQE_ELEMENTS_PER_RQE (RDMA_MAX_SGE_PER_RQ_WQE) #define QEDR_MAX_RQE_ELEMENTS_PER_PAGE ((RDMA_RING_PAGE_SIZE) / \ QEDR_RQE_ELEMENT_SIZE) #define QEDR_MAX_RQE ((QEDR_MAX_RQ_PBL_ENTRIES) *\ (RDMA_RING_PAGE_SIZE) / \ (QEDR_RQE_ELEMENT_SIZE) /\ (QEDR_MAX_RQE_ELEMENTS_PER_RQE)) #define QEDR_CQE_SIZE (sizeof(union rdma_cqe)) #define QEDR_MAX_CQE_PBL_SIZE (512 * 1024) #define QEDR_MAX_CQE_PBL_ENTRIES (((QEDR_MAX_CQE_PBL_SIZE) / \ sizeof(u64)) - 1) #define QEDR_MAX_CQES ((u32)((QEDR_MAX_CQE_PBL_ENTRIES) * \ (QED_CHAIN_PAGE_SIZE) / QEDR_CQE_SIZE)) #define QEDR_ROCE_MAX_CNQ_SIZE (0x4000) #define QEDR_MAX_PORT (1) #define QEDR_PORT (1) #define QEDR_UVERBS(CMD_NAME) (1ull << IB_USER_VERBS_CMD_##CMD_NAME) #define QEDR_ROCE_PKEY_MAX 1 #define QEDR_ROCE_PKEY_TABLE_LEN 1 #define QEDR_ROCE_PKEY_DEFAULT 0xffff struct qedr_pbl { struct list_head list_entry; void *va; dma_addr_t pa; }; struct qedr_ucontext { struct ib_ucontext ibucontext; struct qedr_dev *dev; struct qedr_pd *pd; u64 dpi_addr; u64 dpi_phys_addr; u32 dpi_size; u16 dpi; struct list_head mm_head; /* Lock to protect mm list */ struct mutex mm_list_lock; }; union db_prod64 { struct rdma_pwm_val32_data data; u64 raw; }; enum qedr_cq_type { QEDR_CQ_TYPE_GSI, QEDR_CQ_TYPE_KERNEL, QEDR_CQ_TYPE_USER, }; struct qedr_pbl_info { u32 num_pbls; u32 num_pbes; u32 pbl_size; u32 pbe_size; bool two_layered; }; struct qedr_userq { struct ib_umem *umem; struct qedr_pbl_info pbl_info; struct qedr_pbl *pbl_tbl; u64 buf_addr; size_t buf_len; }; struct qedr_cq { struct ib_cq ibcq; enum qedr_cq_type cq_type; u32 sig; u16 icid; /* Lock to protect multiplem CQ's */ spinlock_t cq_lock; u8 arm_flags; struct qed_chain pbl; void __iomem *db_addr; union db_prod64 db; u8 pbl_toggle; union rdma_cqe *latest_cqe; union rdma_cqe *toggle_cqe; u32 cq_cons; struct qedr_userq q; u8 destroyed; u16 cnq_notif; }; struct qedr_pd { struct ib_pd ibpd; u32 pd_id; struct qedr_ucontext *uctx; }; struct qedr_mm { struct { u64 phy_addr; unsigned long len; } key; struct list_head entry; }; union db_prod32 { struct rdma_pwm_val16_data data; u32 raw; }; struct qedr_qp_hwq_info { /* WQE Elements */ struct qed_chain pbl; u64 p_phys_addr_tbl; u32 max_sges; /* WQE */ u16 prod; u16 cons; u16 wqe_cons; u16 gsi_cons; u16 max_wr; /* DB */ void __iomem *db; union db_prod32 db_data; void __iomem *iwarp_db2; union db_prod32 iwarp_db2_data; }; #define QEDR_INC_SW_IDX(p_info, index) \ do { \ p_info->index = (p_info->index + 1) & \ qed_chain_get_capacity(p_info->pbl) \ } while (0) struct qedr_srq_hwq_info { u32 max_sges; u32 max_wr; struct qed_chain pbl; u64 p_phys_addr_tbl; u32 wqe_prod; u32 sge_prod; u32 wr_prod_cnt; u32 wr_cons_cnt; u32 num_elems; u32 *virt_prod_pair_addr; dma_addr_t phy_prod_pair_addr; }; struct qedr_srq { struct ib_srq ibsrq; struct qedr_dev *dev; struct qedr_userq usrq; struct qedr_srq_hwq_info hw_srq; struct ib_umem *prod_umem; u16 srq_id; u32 srq_limit; /* lock to protect srq recv post */ spinlock_t lock; }; enum qedr_qp_err_bitmap { QEDR_QP_ERR_SQ_FULL = 1, QEDR_QP_ERR_RQ_FULL = 2, QEDR_QP_ERR_BAD_SR = 4, QEDR_QP_ERR_BAD_RR = 8, QEDR_QP_ERR_SQ_PBL_FULL = 16, QEDR_QP_ERR_RQ_PBL_FULL = 32, }; struct qedr_qp { struct ib_qp ibqp; /* must be first */ struct qedr_dev *dev; struct qedr_iw_ep *ep; struct qedr_qp_hwq_info sq; struct qedr_qp_hwq_info rq; u32 max_inline_data; /* Lock for QP's */ spinlock_t q_lock; struct qedr_cq *sq_cq; struct qedr_cq *rq_cq; struct qedr_srq *srq; enum qed_roce_qp_state state; u32 id; struct qedr_pd *pd; enum ib_qp_type qp_type; struct qed_rdma_qp *qed_qp; u32 qp_id; u16 icid; u16 mtu; int sgid_idx; u32 rq_psn; u32 sq_psn; u32 qkey; u32 dest_qp_num; /* Relevant to qps created from kernel space only (ULPs) */ u8 prev_wqe_size; u16 wqe_cons; u32 err_bitmap; bool signaled; /* SQ shadow */ struct { u64 wr_id; enum ib_wc_opcode opcode; u32 bytes_len; u8 wqe_size; bool signaled; dma_addr_t icrc_mapping; u32 *icrc; struct qedr_mr *mr; } *wqe_wr_id; /* RQ shadow */ struct { u64 wr_id; struct ib_sge sg_list[RDMA_MAX_SGE_PER_RQ_WQE]; u8 wqe_size; u8 smac[ETH_ALEN]; u16 vlan; int rc; } *rqe_wr_id; /* Relevant to qps created from user space only (applications) */ struct qedr_userq usq; struct qedr_userq urq; atomic_t refcnt; bool destroyed; }; struct qedr_ah { struct ib_ah ibah; struct rdma_ah_attr attr; }; enum qedr_mr_type { QEDR_MR_USER, QEDR_MR_KERNEL, QEDR_MR_DMA, QEDR_MR_FRMR, }; struct mr_info { struct qedr_pbl *pbl_table; struct qedr_pbl_info pbl_info; struct list_head free_pbl_list; struct list_head inuse_pbl_list; u32 completed; u32 completed_handled; }; struct qedr_mr { struct ib_mr ibmr; struct ib_umem *umem; struct qed_rdma_register_tid_in_params hw_mr; enum qedr_mr_type type; struct qedr_dev *dev; struct mr_info info; u64 *pages; u32 npages; }; #define SET_FIELD2(value, name, flag) ((value) |= ((flag) << (name ## _SHIFT))) #define QEDR_RESP_IMM (RDMA_CQE_RESPONDER_IMM_FLG_MASK << \ RDMA_CQE_RESPONDER_IMM_FLG_SHIFT) #define QEDR_RESP_RDMA (RDMA_CQE_RESPONDER_RDMA_FLG_MASK << \ RDMA_CQE_RESPONDER_RDMA_FLG_SHIFT) #define QEDR_RESP_INV (RDMA_CQE_RESPONDER_INV_FLG_MASK << \ RDMA_CQE_RESPONDER_INV_FLG_SHIFT) static inline void qedr_inc_sw_cons(struct qedr_qp_hwq_info *info) { info->cons = (info->cons + 1) % info->max_wr; info->wqe_cons++; } static inline void qedr_inc_sw_prod(struct qedr_qp_hwq_info *info) { info->prod = (info->prod + 1) % info->max_wr; } static inline int qedr_get_dmac(struct qedr_dev *dev, struct rdma_ah_attr *ah_attr, u8 *mac_addr) { union ib_gid zero_sgid = { { 0 } }; struct in6_addr in6; const struct ib_global_route *grh = rdma_ah_read_grh(ah_attr); u8 *dmac; if (!memcmp(&grh->dgid, &zero_sgid, sizeof(union ib_gid))) { DP_ERR(dev, "Local port GID not supported\n"); eth_zero_addr(mac_addr); return -EINVAL; } memcpy(&in6, grh->dgid.raw, sizeof(in6)); dmac = rdma_ah_retrieve_dmac(ah_attr); if (!dmac) return -EINVAL; ether_addr_copy(mac_addr, dmac); return 0; } struct qedr_iw_listener { struct qedr_dev *dev; struct iw_cm_id *cm_id; int backlog; void *qed_handle; }; struct qedr_iw_ep { struct qedr_dev *dev; struct iw_cm_id *cm_id; struct qedr_qp *qp; void *qed_context; u8 during_connect; }; static inline struct qedr_ucontext *get_qedr_ucontext(struct ib_ucontext *ibucontext) { return container_of(ibucontext, struct qedr_ucontext, ibucontext); } static inline struct qedr_dev *get_qedr_dev(struct ib_device *ibdev) { return container_of(ibdev, struct qedr_dev, ibdev); } static inline struct qedr_pd *get_qedr_pd(struct ib_pd *ibpd) { return container_of(ibpd, struct qedr_pd, ibpd); } static inline struct qedr_cq *get_qedr_cq(struct ib_cq *ibcq) { return container_of(ibcq, struct qedr_cq, ibcq); } static inline struct qedr_qp *get_qedr_qp(struct ib_qp *ibqp) { return container_of(ibqp, struct qedr_qp, ibqp); } static inline struct qedr_ah *get_qedr_ah(struct ib_ah *ibah) { return container_of(ibah, struct qedr_ah, ibah); } static inline struct qedr_mr *get_qedr_mr(struct ib_mr *ibmr) { return container_of(ibmr, struct qedr_mr, ibmr); } static inline struct qedr_srq *get_qedr_srq(struct ib_srq *ibsrq) { return container_of(ibsrq, struct qedr_srq, ibsrq); } #endif