75 строки
1.7 KiB
C
75 строки
1.7 KiB
C
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// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
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/*
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* Copyright (c) 2019 Mellanox Technologies. All rights reserved.
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*/
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#include <rdma/ib_verbs.h>
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#include <rdma/rdma_counter.h>
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#include "core_priv.h"
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#include "restrack.h"
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#define ALL_AUTO_MODE_MASKS (RDMA_COUNTER_MASK_QP_TYPE)
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static int __counter_set_mode(struct rdma_counter_mode *curr,
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enum rdma_nl_counter_mode new_mode,
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enum rdma_nl_counter_mask new_mask)
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{
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if ((new_mode == RDMA_COUNTER_MODE_AUTO) &&
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((new_mask & (~ALL_AUTO_MODE_MASKS)) ||
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(curr->mode != RDMA_COUNTER_MODE_NONE)))
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return -EINVAL;
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curr->mode = new_mode;
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curr->mask = new_mask;
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return 0;
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}
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/**
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* rdma_counter_set_auto_mode() - Turn on/off per-port auto mode
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*
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* When @on is true, the @mask must be set
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*/
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int rdma_counter_set_auto_mode(struct ib_device *dev, u8 port,
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bool on, enum rdma_nl_counter_mask mask)
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{
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struct rdma_port_counter *port_counter;
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int ret;
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port_counter = &dev->port_data[port].port_counter;
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mutex_lock(&port_counter->lock);
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if (on) {
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ret = __counter_set_mode(&port_counter->mode,
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RDMA_COUNTER_MODE_AUTO, mask);
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} else {
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if (port_counter->mode.mode != RDMA_COUNTER_MODE_AUTO) {
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ret = -EINVAL;
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goto out;
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}
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ret = __counter_set_mode(&port_counter->mode,
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RDMA_COUNTER_MODE_NONE, 0);
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}
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out:
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mutex_unlock(&port_counter->lock);
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return ret;
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}
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void rdma_counter_init(struct ib_device *dev)
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{
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struct rdma_port_counter *port_counter;
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u32 port;
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if (!dev->ops.alloc_hw_stats || !dev->port_data)
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return;
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rdma_for_each_port(dev, port) {
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port_counter = &dev->port_data[port].port_counter;
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port_counter->mode.mode = RDMA_COUNTER_MODE_NONE;
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mutex_init(&port_counter->lock);
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}
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}
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void rdma_counter_release(struct ib_device *dev)
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{
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}
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