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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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6a5df91baf
Enables multiple Interrupt vectors. Driver is requesting the max MSIX vectors based on the number of online cpus and creates upto 9 MSIx vectors (1 for control path and 8 for data path). A tasklet is created for each of these vectors. NQs are assigned to CQs in round robin fashion. This patch also adds IRQ affinity hint for the MSIX vector of each NQ. Signed-off-by: Ray Jui <ray.jui@broadcom.com> Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
161 lines
4.7 KiB
C
161 lines
4.7 KiB
C
/*
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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 ROCE_DRV_MODULE_VERSION "1.0.0"
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#define BNXT_RE_DESC "Broadcom NetXtreme-C/E RoCE Driver"
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#define BNXT_RE_PAGE_SIZE_4K BIT(12)
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#define BNXT_RE_PAGE_SIZE_8K BIT(13)
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#define BNXT_RE_PAGE_SIZE_64K BIT(16)
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#define BNXT_RE_PAGE_SIZE_2M BIT(21)
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#define BNXT_RE_PAGE_SIZE_8M BIT(23)
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#define BNXT_RE_PAGE_SIZE_1G BIT(30)
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#define BNXT_RE_MAX_MR_SIZE BIT(30)
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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_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_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_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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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_IBDEV_REGISTERED 1
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#define BNXT_RE_FLAG_GOT_MSIX 2
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#define BNXT_RE_FLAG_RCFW_CHANNEL_EN 8
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#define BNXT_RE_FLAG_QOS_WORK_REG 16
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struct net_device *netdev;
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unsigned int version, major, minor;
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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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/* 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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u32 sqp_id;
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struct bnxt_re_qp *qp1_sqp;
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struct bnxt_re_ah *sqp_ah;
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struct bnxt_re_sqp_entries sqp_tbl[1024];
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atomic_t nq_alloc_cnt;
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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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