79 lines
1.8 KiB
C
79 lines
1.8 KiB
C
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// SPDX-License-Identifier: GPL-2.0 or BSD-3-Clause
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/*
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* Copyright(c) 2017 Intel Corporation.
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*/
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#include "exp_rcv.h"
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#include "trace.h"
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/**
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* hfi1_exp_tid_set_init - initialize exp_tid_set
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* @set: the set
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*/
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static void hfi1_exp_tid_set_init(struct exp_tid_set *set)
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{
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INIT_LIST_HEAD(&set->list);
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set->count = 0;
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}
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/**
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* hfi1_exp_tid_group_init - initialize rcd expected receive
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* @rcd: the rcd
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*/
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void hfi1_exp_tid_group_init(struct hfi1_ctxtdata *rcd)
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{
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hfi1_exp_tid_set_init(&rcd->tid_group_list);
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hfi1_exp_tid_set_init(&rcd->tid_used_list);
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hfi1_exp_tid_set_init(&rcd->tid_full_list);
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}
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/**
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* hfi1_alloc_ctxt_rcv_groups - initialize expected receive groups
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* @rcd: the context to add the groupings to
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*/
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int hfi1_alloc_ctxt_rcv_groups(struct hfi1_ctxtdata *rcd)
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{
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struct hfi1_devdata *dd = rcd->dd;
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u32 tidbase;
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struct tid_group *grp;
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int i;
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u32 ngroups;
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ngroups = rcd->expected_count / dd->rcv_entries.group_size;
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rcd->groups =
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kcalloc_node(ngroups, sizeof(*rcd->groups),
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GFP_KERNEL, rcd->numa_id);
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if (!rcd->groups)
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return -ENOMEM;
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tidbase = rcd->expected_base;
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for (i = 0; i < ngroups; i++) {
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grp = &rcd->groups[i];
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grp->size = dd->rcv_entries.group_size;
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grp->base = tidbase;
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tid_group_add_tail(grp, &rcd->tid_group_list);
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tidbase += dd->rcv_entries.group_size;
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}
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return 0;
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}
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/**
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* hfi1_free_ctxt_rcv_groups - free expected receive groups
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* @rcd: the context to free
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*
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* The routine dismantles the expect receive linked
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* list and clears any tids associated with the receive
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* context.
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*
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* This should only be called for kernel contexts and the
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* a base user context.
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*/
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void hfi1_free_ctxt_rcv_groups(struct hfi1_ctxtdata *rcd)
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{
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kfree(rcd->groups);
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rcd->groups = NULL;
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hfi1_exp_tid_group_init(rcd);
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hfi1_clear_tids(rcd);
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}
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