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![Jason Gunthorpe](/assets/img/avatar_default.png)
This is always the same value as IOVA masked by the page size, just use that clearer calculation directly. It is unclear of ocrdma hardware can actually support a true fbo, if so it could use a different algorithm to compute the best page size. Link: https://lore.kernel.org/r/17-v2-270386b7e60b+28f4-umem_1_jgg@nvidia.com Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
607 lines
13 KiB
C
607 lines
13 KiB
C
/* This file is part of the Emulex RoCE Device Driver for
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* RoCE (RDMA over Converged Ethernet) adapters.
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* Copyright (C) 2012-2015 Emulex. All rights reserved.
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* EMULEX and SLI are trademarks of Emulex.
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* www.emulex.com
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*
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* This software is available to you under a choice of one of two licenses.
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* You may choose to be licensed under the terms of the GNU General Public
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* License (GPL) Version 2, available from the file COPYING in the main
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* directory of this source tree, or the 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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* - Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* - 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 distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* 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 OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* Contact Information:
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* linux-drivers@emulex.com
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*
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* Emulex
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* 3333 Susan Street
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* Costa Mesa, CA 92626
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*/
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#ifndef __OCRDMA_H__
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#define __OCRDMA_H__
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#include <linux/mutex.h>
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#include <linux/list.h>
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#include <linux/spinlock.h>
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#include <linux/pci.h>
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#include <rdma/ib_verbs.h>
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#include <rdma/ib_user_verbs.h>
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#include <rdma/ib_addr.h>
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#include <be_roce.h>
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#include "ocrdma_sli.h"
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#define OCRDMA_ROCE_DRV_VERSION "11.0.0.0"
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#define OCRDMA_ROCE_DRV_DESC "Emulex OneConnect RoCE Driver"
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#define OCRDMA_NODE_DESC "Emulex OneConnect RoCE HCA"
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#define OC_NAME_SH OCRDMA_NODE_DESC "(Skyhawk)"
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#define OC_NAME_UNKNOWN OCRDMA_NODE_DESC "(Unknown)"
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#define OC_SKH_DEVICE_PF 0x720
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#define OC_SKH_DEVICE_VF 0x728
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#define OCRDMA_MAX_AH 512
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#define OCRDMA_UVERBS(CMD_NAME) (1ull << IB_USER_VERBS_CMD_##CMD_NAME)
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#define convert_to_64bit(lo, hi) ((u64)hi << 32 | (u64)lo)
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#define EQ_INTR_PER_SEC_THRSH_HI 150000
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#define EQ_INTR_PER_SEC_THRSH_LOW 100000
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#define EQ_AIC_MAX_EQD 20
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#define EQ_AIC_MIN_EQD 0
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void ocrdma_eqd_set_task(struct work_struct *work);
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struct ocrdma_dev_attr {
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u8 fw_ver[32];
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u32 vendor_id;
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u32 device_id;
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u16 max_pd;
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u16 max_dpp_pds;
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u16 max_cq;
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u16 max_cqe;
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u16 max_qp;
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u16 max_wqe;
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u16 max_rqe;
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u16 max_srq;
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u32 max_inline_data;
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int max_send_sge;
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int max_recv_sge;
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int max_srq_sge;
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int max_rdma_sge;
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int max_mr;
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u64 max_mr_size;
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u32 max_num_mr_pbl;
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int max_mw;
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int max_map_per_fmr;
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int max_pages_per_frmr;
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u16 max_ord_per_qp;
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u16 max_ird_per_qp;
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int device_cap_flags;
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u8 cq_overflow_detect;
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u8 srq_supported;
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u32 wqe_size;
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u32 rqe_size;
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u32 ird_page_size;
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u8 local_ca_ack_delay;
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u8 ird;
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u8 num_ird_pages;
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u8 udp_encap;
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};
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struct ocrdma_dma_mem {
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void *va;
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dma_addr_t pa;
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u32 size;
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};
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struct ocrdma_pbl {
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void *va;
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dma_addr_t pa;
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};
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struct ocrdma_queue_info {
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void *va;
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dma_addr_t dma;
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u32 size;
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u16 len;
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u16 entry_size; /* Size of an element in the queue */
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u16 id; /* qid, where to ring the doorbell. */
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u16 head, tail;
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bool created;
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};
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struct ocrdma_aic_obj { /* Adaptive interrupt coalescing (AIC) info */
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u32 prev_eqd;
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u64 eq_intr_cnt;
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u64 prev_eq_intr_cnt;
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};
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struct ocrdma_eq {
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struct ocrdma_queue_info q;
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u32 vector;
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int cq_cnt;
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struct ocrdma_dev *dev;
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char irq_name[32];
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struct ocrdma_aic_obj aic_obj;
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};
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struct ocrdma_mq {
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struct ocrdma_queue_info sq;
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struct ocrdma_queue_info cq;
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bool rearm_cq;
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};
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struct mqe_ctx {
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struct mutex lock; /* for serializing mailbox commands on MQ */
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wait_queue_head_t cmd_wait;
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u32 tag;
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u16 cqe_status;
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u16 ext_status;
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bool cmd_done;
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bool fw_error_state;
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};
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struct ocrdma_hw_mr {
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u32 lkey;
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u8 fr_mr;
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u8 remote_atomic;
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u8 remote_rd;
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u8 remote_wr;
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u8 local_rd;
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u8 local_wr;
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u8 mw_bind;
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u8 rsvd;
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u64 len;
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struct ocrdma_pbl *pbl_table;
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u32 num_pbls;
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u32 num_pbes;
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u32 pbl_size;
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u32 pbe_size;
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u64 va;
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};
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struct ocrdma_mr {
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struct ib_mr ibmr;
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struct ib_umem *umem;
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struct ocrdma_hw_mr hwmr;
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u64 *pages;
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u32 npages;
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};
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struct ocrdma_stats {
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u8 type;
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struct ocrdma_dev *dev;
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};
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struct ocrdma_pd_resource_mgr {
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u32 pd_norm_start;
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u16 pd_norm_count;
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u16 pd_norm_thrsh;
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u16 max_normal_pd;
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u32 pd_dpp_start;
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u16 pd_dpp_count;
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u16 pd_dpp_thrsh;
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u16 max_dpp_pd;
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u16 dpp_page_index;
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unsigned long *pd_norm_bitmap;
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unsigned long *pd_dpp_bitmap;
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bool pd_prealloc_valid;
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};
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struct stats_mem {
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struct ocrdma_mqe mqe;
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void *va;
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dma_addr_t pa;
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u32 size;
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char *debugfs_mem;
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};
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struct phy_info {
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u16 auto_speeds_supported;
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u16 fixed_speeds_supported;
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u16 phy_type;
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u16 interface_type;
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};
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enum ocrdma_flags {
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OCRDMA_FLAGS_LINK_STATUS_INIT = 0x01
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};
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struct ocrdma_dev {
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struct ib_device ibdev;
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struct ocrdma_dev_attr attr;
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struct mutex dev_lock; /* provides syncronise access to device data */
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spinlock_t flush_q_lock ____cacheline_aligned;
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struct ocrdma_cq **cq_tbl;
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struct ocrdma_qp **qp_tbl;
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struct ocrdma_eq *eq_tbl;
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int eq_cnt;
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struct delayed_work eqd_work;
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u16 base_eqid;
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u16 max_eq;
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/* provided synchronization to sgid table for
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* updating gid entries triggered by notifier.
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*/
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spinlock_t sgid_lock;
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int gsi_qp_created;
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struct ocrdma_cq *gsi_sqcq;
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struct ocrdma_cq *gsi_rqcq;
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struct {
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struct ocrdma_av *va;
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dma_addr_t pa;
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u32 size;
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u32 num_ah;
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/* provide synchronization for av
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* entry allocations.
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*/
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spinlock_t lock;
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u32 ahid;
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struct ocrdma_pbl pbl;
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} av_tbl;
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void *mbx_cmd;
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struct ocrdma_mq mq;
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struct mqe_ctx mqe_ctx;
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struct be_dev_info nic_info;
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struct phy_info phy;
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char model_number[32];
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u32 hba_port_num;
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struct list_head entry;
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int id;
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u64 *stag_arr;
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u8 sl; /* service level */
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bool pfc_state;
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atomic_t update_sl;
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u16 pvid;
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u32 asic_id;
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u32 flags;
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ulong last_stats_time;
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struct mutex stats_lock; /* provide synch for debugfs operations */
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struct stats_mem stats_mem;
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struct ocrdma_stats rsrc_stats;
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struct ocrdma_stats rx_stats;
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struct ocrdma_stats wqe_stats;
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struct ocrdma_stats tx_stats;
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struct ocrdma_stats db_err_stats;
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struct ocrdma_stats tx_qp_err_stats;
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struct ocrdma_stats rx_qp_err_stats;
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struct ocrdma_stats tx_dbg_stats;
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struct ocrdma_stats rx_dbg_stats;
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struct ocrdma_stats driver_stats;
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struct ocrdma_stats reset_stats;
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struct dentry *dir;
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atomic_t async_err_stats[OCRDMA_MAX_ASYNC_ERRORS];
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atomic_t cqe_err_stats[OCRDMA_MAX_CQE_ERR];
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struct ocrdma_pd_resource_mgr *pd_mgr;
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};
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struct ocrdma_cq {
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struct ib_cq ibcq;
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struct ocrdma_cqe *va;
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u32 phase;
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u32 getp; /* pointer to pending wrs to
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* return to stack, wrap arounds
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* at max_hw_cqe
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*/
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u32 max_hw_cqe;
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bool phase_change;
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spinlock_t cq_lock ____cacheline_aligned; /* provide synchronization
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* to cq polling
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*/
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/* syncronizes cq completion handler invoked from multiple context */
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spinlock_t comp_handler_lock ____cacheline_aligned;
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u16 id;
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u16 eqn;
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struct ocrdma_ucontext *ucontext;
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dma_addr_t pa;
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u32 len;
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u32 cqe_cnt;
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/* head of all qp's sq and rq for which cqes need to be flushed
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* by the software.
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*/
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struct list_head sq_head, rq_head;
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};
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struct ocrdma_pd {
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struct ib_pd ibpd;
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struct ocrdma_ucontext *uctx;
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u32 id;
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int num_dpp_qp;
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u32 dpp_page;
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bool dpp_enabled;
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};
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struct ocrdma_ah {
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struct ib_ah ibah;
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struct ocrdma_av *av;
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u16 sgid_index;
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u32 id;
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u8 hdr_type;
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};
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struct ocrdma_qp_hwq_info {
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u8 *va; /* virtual address */
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u32 max_sges;
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u32 head, tail;
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u32 entry_size;
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u32 max_cnt;
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u32 max_wqe_idx;
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u16 dbid; /* qid, where to ring the doorbell. */
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u32 len;
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dma_addr_t pa;
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};
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struct ocrdma_srq {
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struct ib_srq ibsrq;
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u8 __iomem *db;
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struct ocrdma_qp_hwq_info rq;
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u64 *rqe_wr_id_tbl;
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u32 *idx_bit_fields;
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u32 bit_fields_len;
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/* provide synchronization to multiple context(s) posting rqe */
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spinlock_t q_lock ____cacheline_aligned;
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struct ocrdma_pd *pd;
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u32 id;
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};
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struct ocrdma_qp {
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struct ib_qp ibqp;
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u8 __iomem *sq_db;
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struct ocrdma_qp_hwq_info sq;
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struct {
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uint64_t wrid;
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uint16_t dpp_wqe_idx;
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uint16_t dpp_wqe;
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uint8_t signaled;
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uint8_t rsvd[3];
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} *wqe_wr_id_tbl;
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u32 max_inline_data;
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/* provide synchronization to multiple context(s) posting wqe, rqe */
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spinlock_t q_lock ____cacheline_aligned;
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struct ocrdma_cq *sq_cq;
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/* list maintained per CQ to flush SQ errors */
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struct list_head sq_entry;
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u8 __iomem *rq_db;
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struct ocrdma_qp_hwq_info rq;
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u64 *rqe_wr_id_tbl;
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struct ocrdma_cq *rq_cq;
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struct ocrdma_srq *srq;
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/* list maintained per CQ to flush RQ errors */
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struct list_head rq_entry;
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enum ocrdma_qp_state state; /* QP state */
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int cap_flags;
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u32 max_ord, max_ird;
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u32 id;
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struct ocrdma_pd *pd;
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enum ib_qp_type qp_type;
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int sgid_idx;
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u32 qkey;
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bool dpp_enabled;
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u8 *ird_q_va;
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bool signaled;
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};
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struct ocrdma_ucontext {
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struct ib_ucontext ibucontext;
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struct list_head mm_head;
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struct mutex mm_list_lock; /* protects list entries of mm type */
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struct ocrdma_pd *cntxt_pd;
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int pd_in_use;
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struct {
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u32 *va;
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dma_addr_t pa;
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u32 len;
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} ah_tbl;
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};
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struct ocrdma_mm {
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struct {
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u64 phy_addr;
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unsigned long len;
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} key;
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struct list_head entry;
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};
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static inline struct ocrdma_dev *get_ocrdma_dev(struct ib_device *ibdev)
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{
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return container_of(ibdev, struct ocrdma_dev, ibdev);
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}
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static inline struct ocrdma_ucontext *get_ocrdma_ucontext(struct ib_ucontext
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*ibucontext)
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{
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return container_of(ibucontext, struct ocrdma_ucontext, ibucontext);
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}
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static inline struct ocrdma_pd *get_ocrdma_pd(struct ib_pd *ibpd)
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{
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return container_of(ibpd, struct ocrdma_pd, ibpd);
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}
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static inline struct ocrdma_cq *get_ocrdma_cq(struct ib_cq *ibcq)
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{
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return container_of(ibcq, struct ocrdma_cq, ibcq);
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}
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static inline struct ocrdma_qp *get_ocrdma_qp(struct ib_qp *ibqp)
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{
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return container_of(ibqp, struct ocrdma_qp, ibqp);
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}
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static inline struct ocrdma_mr *get_ocrdma_mr(struct ib_mr *ibmr)
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{
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return container_of(ibmr, struct ocrdma_mr, ibmr);
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}
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static inline struct ocrdma_ah *get_ocrdma_ah(struct ib_ah *ibah)
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{
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return container_of(ibah, struct ocrdma_ah, ibah);
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}
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static inline struct ocrdma_srq *get_ocrdma_srq(struct ib_srq *ibsrq)
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{
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return container_of(ibsrq, struct ocrdma_srq, ibsrq);
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}
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static inline int is_cqe_valid(struct ocrdma_cq *cq, struct ocrdma_cqe *cqe)
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{
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int cqe_valid;
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cqe_valid = le32_to_cpu(cqe->flags_status_srcqpn) & OCRDMA_CQE_VALID;
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return (cqe_valid == cq->phase);
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}
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static inline int is_cqe_for_sq(struct ocrdma_cqe *cqe)
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{
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return (le32_to_cpu(cqe->flags_status_srcqpn) &
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OCRDMA_CQE_QTYPE) ? 0 : 1;
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}
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static inline int is_cqe_invalidated(struct ocrdma_cqe *cqe)
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{
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return (le32_to_cpu(cqe->flags_status_srcqpn) &
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OCRDMA_CQE_INVALIDATE) ? 1 : 0;
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}
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static inline int is_cqe_imm(struct ocrdma_cqe *cqe)
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{
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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 rdma_ah_attr *ah_attr, u8 *mac_addr)
|
|
{
|
|
struct in6_addr in6;
|
|
|
|
memcpy(&in6, rdma_ah_read_grh(ah_attr)->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->roce.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);
|
|
}
|
|
|
|
static inline u8 ocrdma_get_ae_link_state(u32 ae_state)
|
|
{
|
|
return ((ae_state & OCRDMA_AE_LSC_LS_MASK) >> OCRDMA_AE_LSC_LS_SHIFT);
|
|
}
|
|
|
|
static inline bool ocrdma_is_udp_encap_supported(struct ocrdma_dev *dev)
|
|
{
|
|
return (dev->attr.udp_encap & OCRDMA_L3_TYPE_IPV4) ||
|
|
(dev->attr.udp_encap & OCRDMA_L3_TYPE_IPV6);
|
|
}
|
|
|
|
#endif
|