206 lines
6.1 KiB
C
206 lines
6.1 KiB
C
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/*
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* Broadcom NetXtreme-E RoCE driver.
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*
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* Copyright (c) 2016 - 2017, Broadcom. All rights reserved. The term
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* Broadcom refers to Broadcom Limited and/or its subsidiaries.
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* BSD license below:
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS''
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
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* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* Description: Slow Path Operators (header)
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*
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*/
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#ifndef __BNXT_RE_H__
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#define __BNXT_RE_H__
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#define ROCE_DRV_MODULE_NAME "bnxt_re"
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#define BNXT_RE_DESC "Broadcom NetXtreme-C/E RoCE Driver"
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#define BNXT_RE_PAGE_SHIFT_4K (12)
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#define BNXT_RE_PAGE_SHIFT_8K (13)
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#define BNXT_RE_PAGE_SHIFT_64K (16)
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#define BNXT_RE_PAGE_SHIFT_2M (21)
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#define BNXT_RE_PAGE_SHIFT_8M (23)
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#define BNXT_RE_PAGE_SHIFT_1G (30)
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#define BNXT_RE_PAGE_SIZE_4K BIT(BNXT_RE_PAGE_SHIFT_4K)
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#define BNXT_RE_PAGE_SIZE_8K BIT(BNXT_RE_PAGE_SHIFT_8K)
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#define BNXT_RE_PAGE_SIZE_64K BIT(BNXT_RE_PAGE_SHIFT_64K)
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#define BNXT_RE_PAGE_SIZE_2M BIT(BNXT_RE_PAGE_SHIFT_2M)
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#define BNXT_RE_PAGE_SIZE_8M BIT(BNXT_RE_PAGE_SHIFT_8M)
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#define BNXT_RE_PAGE_SIZE_1G BIT(BNXT_RE_PAGE_SHIFT_1G)
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#define BNXT_RE_MAX_MR_SIZE_LOW BIT_ULL(BNXT_RE_PAGE_SHIFT_1G)
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#define BNXT_RE_MAX_MR_SIZE_HIGH BIT_ULL(39)
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#define BNXT_RE_MAX_MR_SIZE BNXT_RE_MAX_MR_SIZE_HIGH
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#define BNXT_RE_MAX_QPC_COUNT (64 * 1024)
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#define BNXT_RE_MAX_MRW_COUNT (64 * 1024)
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#define BNXT_RE_MAX_SRQC_COUNT (64 * 1024)
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#define BNXT_RE_MAX_CQ_COUNT (64 * 1024)
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#define BNXT_RE_MAX_MRW_COUNT_64K (64 * 1024)
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#define BNXT_RE_MAX_MRW_COUNT_256K (256 * 1024)
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/* Number of MRs to reserve for PF, leaving remainder for VFs */
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#define BNXT_RE_RESVD_MR_FOR_PF (32 * 1024)
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#define BNXT_RE_MAX_GID_PER_VF 128
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/*
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* Percentage of resources of each type reserved for PF.
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* Remaining resources are divided equally among VFs.
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* [0, 100]
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*/
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#define BNXT_RE_PCT_RSVD_FOR_PF 50
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#define BNXT_RE_UD_QP_HW_STALL 0x400000
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#define BNXT_RE_RQ_WQE_THRESHOLD 32
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/*
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* Setting the default ack delay value to 16, which means
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* the default timeout is approx. 260ms(4 usec * 2 ^(timeout))
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*/
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#define BNXT_RE_DEFAULT_ACK_DELAY 16
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struct bnxt_re_ring_attr {
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dma_addr_t *dma_arr;
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int pages;
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int type;
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u32 depth;
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u32 lrid; /* Logical ring id */
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u8 mode;
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};
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struct bnxt_re_work {
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struct work_struct work;
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unsigned long event;
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struct bnxt_re_dev *rdev;
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struct net_device *vlan_dev;
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};
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struct bnxt_re_sqp_entries {
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struct bnxt_qplib_sge sge;
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u64 wrid;
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/* For storing the actual qp1 cqe */
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struct bnxt_qplib_cqe cqe;
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struct bnxt_re_qp *qp1_qp;
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};
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#define BNXT_RE_MAX_GSI_SQP_ENTRIES 1024
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struct bnxt_re_gsi_context {
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struct bnxt_re_qp *gsi_qp;
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struct bnxt_re_qp *gsi_sqp;
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struct bnxt_re_ah *gsi_sah;
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struct bnxt_re_sqp_entries *sqp_tbl;
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};
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#define BNXT_RE_MIN_MSIX 2
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#define BNXT_RE_MAX_MSIX 9
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#define BNXT_RE_AEQ_IDX 0
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#define BNXT_RE_NQ_IDX 1
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#define BNXT_RE_GEN_P5_MAX_VF 64
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struct bnxt_re_dev {
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struct ib_device ibdev;
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struct list_head list;
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unsigned long flags;
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#define BNXT_RE_FLAG_NETDEV_REGISTERED 0
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#define BNXT_RE_FLAG_GOT_MSIX 2
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#define BNXT_RE_FLAG_HAVE_L2_REF 3
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#define BNXT_RE_FLAG_RCFW_CHANNEL_EN 4
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#define BNXT_RE_FLAG_QOS_WORK_REG 5
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#define BNXT_RE_FLAG_RESOURCES_ALLOCATED 7
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#define BNXT_RE_FLAG_RESOURCES_INITIALIZED 8
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#define BNXT_RE_FLAG_ERR_DEVICE_DETACHED 17
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#define BNXT_RE_FLAG_ISSUE_ROCE_STATS 29
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struct net_device *netdev;
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unsigned int version, major, minor;
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struct bnxt_qplib_chip_ctx *chip_ctx;
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struct bnxt_en_dev *en_dev;
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struct bnxt_msix_entry msix_entries[BNXT_RE_MAX_MSIX];
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int num_msix;
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int id;
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struct delayed_work worker;
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u8 cur_prio_map;
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u16 active_speed;
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u8 active_width;
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/* FP Notification Queue (CQ & SRQ) */
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struct tasklet_struct nq_task;
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/* RCFW Channel */
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struct bnxt_qplib_rcfw rcfw;
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/* NQ */
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struct bnxt_qplib_nq nq[BNXT_RE_MAX_MSIX];
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/* Device Resources */
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struct bnxt_qplib_dev_attr dev_attr;
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struct bnxt_qplib_ctx qplib_ctx;
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struct bnxt_qplib_res qplib_res;
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struct bnxt_qplib_dpi dpi_privileged;
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atomic_t qp_count;
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struct mutex qp_lock; /* protect qp list */
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struct list_head qp_list;
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atomic_t cq_count;
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atomic_t srq_count;
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atomic_t mr_count;
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atomic_t mw_count;
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/* Max of 2 lossless traffic class supported per port */
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u16 cosq[2];
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/* QP for for handling QP1 packets */
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struct bnxt_re_gsi_context gsi_ctx;
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atomic_t nq_alloc_cnt;
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u32 is_virtfn;
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u32 num_vfs;
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struct bnxt_qplib_roce_stats stats;
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};
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#define to_bnxt_re_dev(ptr, member) \
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container_of((ptr), struct bnxt_re_dev, member)
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#define BNXT_RE_ROCE_V1_PACKET 0
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#define BNXT_RE_ROCEV2_IPV4_PACKET 2
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#define BNXT_RE_ROCEV2_IPV6_PACKET 3
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static inline struct device *rdev_to_dev(struct bnxt_re_dev *rdev)
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{
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if (rdev)
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return &rdev->ibdev.dev;
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return NULL;
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}
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#endif
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