/* * Broadcom NetXtreme-E RoCE driver. * * Copyright (c) 2016 - 2017, Broadcom. All rights reserved. The term * Broadcom refers to Broadcom Limited and/or its subsidiaries. * * 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 * BSD license below: * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. 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. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * Description: Slow Path Operators (header) * */ #ifndef __BNXT_RE_H__ #define __BNXT_RE_H__ #define ROCE_DRV_MODULE_NAME "bnxt_re" #define ROCE_DRV_MODULE_VERSION "1.0.0" #define BNXT_RE_DESC "Broadcom NetXtreme-C/E RoCE Driver" #define BNXT_RE_PAGE_SHIFT_4K (12) #define BNXT_RE_PAGE_SHIFT_8K (13) #define BNXT_RE_PAGE_SHIFT_64K (16) #define BNXT_RE_PAGE_SHIFT_2M (21) #define BNXT_RE_PAGE_SHIFT_8M (23) #define BNXT_RE_PAGE_SHIFT_1G (30) #define BNXT_RE_PAGE_SIZE_4K BIT(BNXT_RE_PAGE_SHIFT_4K) #define BNXT_RE_PAGE_SIZE_8K BIT(BNXT_RE_PAGE_SHIFT_8K) #define BNXT_RE_PAGE_SIZE_64K BIT(BNXT_RE_PAGE_SHIFT_64K) #define BNXT_RE_PAGE_SIZE_2M BIT(BNXT_RE_PAGE_SHIFT_2M) #define BNXT_RE_PAGE_SIZE_8M BIT(BNXT_RE_PAGE_SHIFT_8M) #define BNXT_RE_PAGE_SIZE_1G BIT(BNXT_RE_PAGE_SHIFT_1G) #define BNXT_RE_MAX_MR_SIZE_LOW BIT_ULL(BNXT_RE_PAGE_SHIFT_1G) #define BNXT_RE_MAX_MR_SIZE_HIGH BIT_ULL(39) #define BNXT_RE_MAX_MR_SIZE BNXT_RE_MAX_MR_SIZE_HIGH #define BNXT_RE_MAX_QPC_COUNT (64 * 1024) #define BNXT_RE_MAX_MRW_COUNT (64 * 1024) #define BNXT_RE_MAX_SRQC_COUNT (64 * 1024) #define BNXT_RE_MAX_CQ_COUNT (64 * 1024) #define BNXT_RE_MAX_MRW_COUNT_64K (64 * 1024) #define BNXT_RE_MAX_MRW_COUNT_256K (256 * 1024) /* Number of MRs to reserve for PF, leaving remainder for VFs */ #define BNXT_RE_RESVD_MR_FOR_PF (32 * 1024) #define BNXT_RE_MAX_GID_PER_VF 128 /* * Percentage of resources of each type reserved for PF. * Remaining resources are divided equally among VFs. * [0, 100] */ #define BNXT_RE_PCT_RSVD_FOR_PF 50 #define BNXT_RE_UD_QP_HW_STALL 0x400000 #define BNXT_RE_RQ_WQE_THRESHOLD 32 /* * Setting the default ack delay value to 16, which means * the default timeout is approx. 260ms(4 usec * 2 ^(timeout)) */ #define BNXT_RE_DEFAULT_ACK_DELAY 16 struct bnxt_re_work { struct work_struct work; unsigned long event; struct bnxt_re_dev *rdev; struct net_device *vlan_dev; }; struct bnxt_re_sqp_entries { struct bnxt_qplib_sge sge; u64 wrid; /* For storing the actual qp1 cqe */ struct bnxt_qplib_cqe cqe; struct bnxt_re_qp *qp1_qp; }; #define BNXT_RE_MIN_MSIX 2 #define BNXT_RE_MAX_MSIX 9 #define BNXT_RE_AEQ_IDX 0 #define BNXT_RE_NQ_IDX 1 struct bnxt_re_dev { struct ib_device ibdev; struct list_head list; unsigned long flags; #define BNXT_RE_FLAG_NETDEV_REGISTERED 0 #define BNXT_RE_FLAG_IBDEV_REGISTERED 1 #define BNXT_RE_FLAG_GOT_MSIX 2 #define BNXT_RE_FLAG_HAVE_L2_REF 3 #define BNXT_RE_FLAG_RCFW_CHANNEL_EN 4 #define BNXT_RE_FLAG_QOS_WORK_REG 5 #define BNXT_RE_FLAG_ISSUE_ROCE_STATS 29 struct net_device *netdev; unsigned int version, major, minor; struct bnxt_en_dev *en_dev; struct bnxt_msix_entry msix_entries[BNXT_RE_MAX_MSIX]; int num_msix; int id; struct delayed_work worker; u8 cur_prio_map; u8 active_speed; u8 active_width; /* FP Notification Queue (CQ & SRQ) */ struct tasklet_struct nq_task; /* RCFW Channel */ struct bnxt_qplib_rcfw rcfw; /* NQ */ struct bnxt_qplib_nq nq[BNXT_RE_MAX_MSIX]; /* Device Resources */ struct bnxt_qplib_dev_attr dev_attr; struct bnxt_qplib_ctx qplib_ctx; struct bnxt_qplib_res qplib_res; struct bnxt_qplib_dpi dpi_privileged; atomic_t qp_count; struct mutex qp_lock; /* protect qp list */ struct list_head qp_list; atomic_t cq_count; atomic_t srq_count; atomic_t mr_count; atomic_t mw_count; atomic_t sched_count; /* Max of 2 lossless traffic class supported per port */ u16 cosq[2]; /* QP for for handling QP1 packets */ u32 sqp_id; struct bnxt_re_qp *qp1_sqp; struct bnxt_re_ah *sqp_ah; struct bnxt_re_sqp_entries sqp_tbl[1024]; atomic_t nq_alloc_cnt; u32 is_virtfn; u32 num_vfs; struct bnxt_qplib_roce_stats stats; }; #define to_bnxt_re_dev(ptr, member) \ container_of((ptr), struct bnxt_re_dev, member) #define BNXT_RE_ROCE_V1_PACKET 0 #define BNXT_RE_ROCEV2_IPV4_PACKET 2 #define BNXT_RE_ROCEV2_IPV6_PACKET 3 static inline struct device *rdev_to_dev(struct bnxt_re_dev *rdev) { if (rdev) return &rdev->ibdev.dev; return NULL; } #endif