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cbb3ec2523
This is a set of updates of the mt76 driver based on wireless-testing (wt-2023-05-11) 711dca0ca3d77414f8f346e564e9c8640147f40d (after v6.4-rc1), This adds support for mt7996 as well. (wt-2023-06-09) 7bd20e011626ccc3ad53e57873452b1716fcfaaa (after v6.4-rc5), (wt-2023-07-24) 62e409149b62a285e89018e49b2e115757fb9022 (after v6.5-rc3), (wt-2023-08-06) 2a220a15be657a24868368892e3e2caba2115283 (after v6.5-rc4). The current version of LinuxKPI lacks support for "page pool" which needs enhancing and updating a decade or so old shortcut mapping struct page directly to struct vm_page. MFC after: 20 days
155 lines
3.6 KiB
C
155 lines
3.6 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2020,2022-2023 Bjoern A. Zeeb <bz@FreeBSD.org>
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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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* 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 the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* 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 AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _MT76_UTIL_H
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#define _MT76_UTIL_H
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#include <linux/kthread.h>
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struct mt76_worker
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{
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void(*fn)(struct mt76_worker *);
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struct task_struct *task;
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unsigned long state;
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};
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enum mt76_worker_state {
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MT76_WORKER_SCHEDULED,
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MT76_WORKER_RUNNING,
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};
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#if 0
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bool __mt76_poll(struct mt76_dev *, u32, u32, u32, int);
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bool __mt76_poll_msec(struct mt76_dev *, u32, u32, u32, int);
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int mt76_get_min_avg_rssi(struct mt76_dev *, bool);
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#endif
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int mt76_wcid_alloc(u32 *, int);
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int __mt76_worker_fn(void *);
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/* wcid_phy_mask is [32] */
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static inline void
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mt76_wcid_mask_set(u32 *mask, u16 bit)
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{
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mask[bit / 32] |= BIT(bit % 32);
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}
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static inline void
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mt76_wcid_mask_clear(u32 *mask, u16 bit)
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{
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mask[bit / 32] &= ~BIT(bit % 32);
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}
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/* See, e.g., __mt76_worker_fn for some details. */
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static inline int
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mt76_worker_setup(struct ieee80211_hw *hw, struct mt76_worker *w,
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void (*wfunc)(struct mt76_worker *), const char *name)
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{
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int rc;
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if (wfunc)
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w->fn = wfunc;
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w->task = kthread_run(__mt76_worker_fn, w,
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"mt76-worker");
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if (!IS_ERR(w->task))
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return (0);
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rc = PTR_ERR(w->task);
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w->task = NULL;
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return (rc);
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}
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static inline void
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mt76_worker_schedule(struct mt76_worker *w)
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{
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if (w->task == NULL)
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return;
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if (!test_and_set_bit(MT76_WORKER_SCHEDULED, &w->state) ||
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!test_bit(MT76_WORKER_RUNNING, &w->state))
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wake_up_process(w->task);
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}
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static inline void
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mt76_worker_enable(struct mt76_worker *w)
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{
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if (w->task == NULL)
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return;
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kthread_unpark(w->task);
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mt76_worker_schedule(w);
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}
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static inline void
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mt76_worker_disable(struct mt76_worker *w)
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{
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if (w->task == NULL)
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return;
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kthread_park(w->task);
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WRITE_ONCE(w->state, 0);
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}
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static inline void
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mt76_worker_teardown(struct mt76_worker *w)
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{
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if (w->task == NULL)
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return;
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kthread_stop(w->task);
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w->task = NULL;
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}
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static inline void
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mt76_skb_set_moredata(struct sk_buff *skb, bool moredata)
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{
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/*
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* This would be net80211::IEEE80211_FC1_MORE_DATA
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* Implement it as mostly LinuxKPI 802.11 to avoid
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* further header pollution and possible conflicts.
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*/
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struct ieee80211_hdr *hdr;
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uint16_t val;
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hdr = (struct ieee80211_hdr *)skb->data;
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val = cpu_to_le16(IEEE80211_FC1_MORE_DATA << 8);
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if (!moredata)
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hdr->frame_control &= ~val;
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else
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hdr->frame_control |= val;
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}
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#endif /* _MT76_UTIL_H */
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