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mt76: Introduce mt76_mcu data structure

Browse source 
Introduce mt76_mcu data structure to contain common fields between
mt76u_mcu and mt76e_mcu.
Initialize mcu common fields in mt76_alloc_device().
Rely on mt76_mcu in mt76_mcu_rx_event and in mt76_mcu_get_response
in order to reuse them in usb code

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Lorenzo Bianconi 2020-02-08 13:44:28 +01:00 committed by Felix Fietkau
parent a9fddf08ec
commit 0987295750
12 changed files with 48 additions and 54 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
drivers/net/wireless/mediatek/mt76/mac80211.c
View file

@ -420,6 +420,10 @@ mt76_alloc_device(struct device *pdev, unsigned int size,
init_waitqueue_head(&dev->tx_wait);
skb_queue_head_init(&dev->status_list);
skb_queue_head_init(&dev->mcu.res_q);
init_waitqueue_head(&dev->mcu.wait);
mutex_init(&dev->mcu.mutex);
INIT_LIST_HEAD(&dev->txwi_cache);
for (i = 0; i < ARRAY_SIZE(dev->q_rx); i++)

11
drivers/net/wireless/mediatek/mt76/mcu.c
View file

@ -24,7 +24,6 @@ mt76_mcu_msg_alloc(const void *data, int head_len,
}
EXPORT_SYMBOL_GPL(mt76_mcu_msg_alloc);
/* mmio */
struct sk_buff *mt76_mcu_get_response(struct mt76_dev *dev,
unsigned long expires)
{
@ -34,17 +33,17 @@ struct sk_buff *mt76_mcu_get_response(struct mt76_dev *dev,
return NULL;
timeout = expires - jiffies;
wait_event_timeout(dev->mmio.mcu.wait,
(!skb_queue_empty(&dev->mmio.mcu.res_q) ||
wait_event_timeout(dev->mcu.wait,
(!skb_queue_empty(&dev->mcu.res_q) ||
test_bit(MT76_MCU_RESET, &dev->phy.state)),
timeout);
return skb_dequeue(&dev->mmio.mcu.res_q);
return skb_dequeue(&dev->mcu.res_q);
}
EXPORT_SYMBOL_GPL(mt76_mcu_get_response);
void mt76_mcu_rx_event(struct mt76_dev *dev, struct sk_buff *skb)
{
skb_queue_tail(&dev->mmio.mcu.res_q, skb);
wake_up(&dev->mmio.mcu.wait);
skb_queue_tail(&dev->mcu.res_q, skb);
wake_up(&dev->mcu.wait);
}
EXPORT_SYMBOL_GPL(mt76_mcu_rx_event);

3
drivers/net/wireless/mediatek/mt76/mmio.c
View file

@ -94,9 +94,6 @@ void mt76_mmio_init(struct mt76_dev *dev, void __iomem *regs)
dev->bus = &mt76_mmio_ops;
dev->mmio.regs = regs;
skb_queue_head_init(&dev->mmio.mcu.res_q);
init_waitqueue_head(&dev->mmio.mcu.wait);
spin_lock_init(&dev->mmio.irq_lock);
mutex_init(&dev->mmio.mcu.mutex);
}
EXPORT_SYMBOL_GPL(mt76_mmio_init);

21
drivers/net/wireless/mediatek/mt76/mt76.h
View file

@ -388,6 +388,14 @@ enum mt76u_out_ep {
__MT_EP_OUT_MAX,
};
struct mt76_mcu {
struct mutex mutex;
u32 msg_seq;
struct sk_buff_head res_q;
wait_queue_head_t wait;
};
#define MT_TX_SG_MAX_SIZE 8
#define MT_RX_SG_MAX_SIZE 4
#define MT_NUM_TX_ENTRIES 256
@ -408,10 +416,7 @@ struct mt76_usb {
bool sg_en;
struct mt76u_mcu {
struct mutex mutex;
u8 *data;
u32 msg_seq;
/* multiple reads */
struct mt76_reg_pair *rp;
int rp_len;
@ -421,14 +426,6 @@ struct mt76_usb {
};
struct mt76_mmio {
struct mt76e_mcu {
struct mutex mutex;
wait_queue_head_t wait;
struct sk_buff_head res_q;
u32 msg_seq;
} mcu;
void __iomem *regs;
spinlock_t irq_lock;
u32 irqmask;
@ -506,6 +503,8 @@ struct mt76_dev {
const struct mt76_mcu_ops *mcu_ops;
struct device *dev;
struct mt76_mcu mcu;
struct net_device napi_dev;
spinlock_t rx_lock;
struct napi_struct napi[__MT_RXQ_MAX];

10
drivers/net/wireless/mediatek/mt76/mt7603/mcu.c
View file

@ -22,9 +22,9 @@ __mt7603_mcu_msg_send(struct mt7603_dev *dev, struct sk_buff *skb,
struct mt7603_mcu_txd *txd;
u8 seq;
seq = ++mdev->mmio.mcu.msg_seq & 0xf;
seq = ++mdev->mcu.msg_seq & 0xf;
if (!seq)
seq = ++mdev->mmio.mcu.msg_seq & 0xf;
seq = ++mdev->mcu.msg_seq & 0xf;
txd = (struct mt7603_mcu_txd *)skb_push(skb, hdrlen);
memset(txd, 0, hdrlen);
@ -67,7 +67,7 @@ mt7603_mcu_msg_send(struct mt76_dev *mdev, int cmd, const void *data,
if (!skb)
return -ENOMEM;
mutex_lock(&mdev->mmio.mcu.mutex);
mutex_lock(&mdev->mcu.mutex);
ret = __mt7603_mcu_msg_send(dev, skb, cmd, &seq);
if (ret)
@ -97,7 +97,7 @@ mt7603_mcu_msg_send(struct mt76_dev *mdev, int cmd, const void *data,
}
out:
mutex_unlock(&mdev->mmio.mcu.mutex);
mutex_unlock(&mdev->mcu.mutex);
return ret;
}
@ -277,7 +277,7 @@ int mt7603_mcu_init(struct mt7603_dev *dev)
void mt7603_mcu_exit(struct mt7603_dev *dev)
{
__mt76_mcu_restart(&dev->mt76);
skb_queue_purge(&dev->mt76.mmio.mcu.res_q);
skb_queue_purge(&dev->mt76.mcu.res_q);
}
int mt7603_mcu_set_eeprom(struct mt7603_dev *dev)

2
drivers/net/wireless/mediatek/mt76/mt7615/mac.c
View file

@ -1878,7 +1878,7 @@ void mt7615_mac_reset_work(struct work_struct *work)
set_bit(MT76_RESET, &dev->mphy.state);
set_bit(MT76_MCU_RESET, &dev->mphy.state);
wake_up(&dev->mt76.mmio.mcu.wait);
wake_up(&dev->mt76.mcu.wait);
cancel_delayed_work_sync(&dev->mt76.mac_work);
/* lock/unlock all queues to ensure that no tx is pending */

10
drivers/net/wireless/mediatek/mt76/mt7615/mcu.c
View file

@ -58,9 +58,9 @@ static int __mt7615_mcu_msg_send(struct mt7615_dev *dev, struct sk_buff *skb,
u32 val;
__le32 *txd;
seq = ++dev->mt76.mmio.mcu.msg_seq & 0xf;
seq = ++dev->mt76.mcu.msg_seq & 0xf;
if (!seq)
seq = ++dev->mt76.mmio.mcu.msg_seq & 0xf;
seq = ++dev->mt76.mcu.msg_seq & 0xf;
mcu_txd = (struct mt7615_mcu_txd *)skb_push(skb,
sizeof(struct mt7615_mcu_txd));
@ -153,7 +153,7 @@ mt7615_mcu_msg_send(struct mt76_dev *mdev, int cmd, const void *data,
if (!skb)
return -ENOMEM;
mutex_lock(&mdev->mmio.mcu.mutex);
mutex_lock(&mdev->mcu.mutex);
ret = __mt7615_mcu_msg_send(dev, skb, cmd, &seq);
if (ret)
@ -174,7 +174,7 @@ mt7615_mcu_msg_send(struct mt76_dev *mdev, int cmd, const void *data,
}
out:
mutex_unlock(&mdev->mmio.mcu.mutex);
mutex_unlock(&mdev->mcu.mutex);
return ret;
}
@ -719,7 +719,7 @@ void mt7615_mcu_exit(struct mt7615_dev *dev)
{
__mt76_mcu_restart(&dev->mt76);
mt7615_firmware_own(dev);
skb_queue_purge(&dev->mt76.mmio.mcu.res_q);
skb_queue_purge(&dev->mt76.mcu.res_q);
}
int mt7615_mcu_set_eeprom(struct mt7615_dev *dev)

10
drivers/net/wireless/mediatek/mt76/mt76x02_mcu.c
View file

@ -24,11 +24,11 @@ int mt76x02_mcu_msg_send(struct mt76_dev *mdev, int cmd, const void *data,
if (!skb)
return -ENOMEM;
mutex_lock(&mdev->mmio.mcu.mutex);
mutex_lock(&mdev->mcu.mutex);
seq = ++mdev->mmio.mcu.msg_seq & 0xf;
seq = ++mdev->mcu.msg_seq & 0xf;
if (!seq)
seq = ++mdev->mmio.mcu.msg_seq & 0xf;
seq = ++mdev->mcu.msg_seq & 0xf;
tx_info = MT_MCU_MSG_TYPE_CMD |
FIELD_PREP(MT_MCU_MSG_CMD_TYPE, cmd) |
@ -65,7 +65,7 @@ int mt76x02_mcu_msg_send(struct mt76_dev *mdev, int cmd, const void *data,
}
out:
mutex_unlock(&mdev->mmio.mcu.mutex);
mutex_unlock(&mdev->mcu.mutex);
return ret;
}
@ -141,7 +141,7 @@ int mt76x02_mcu_cleanup(struct mt76x02_dev *dev)
mt76_wr(dev, MT_MCU_INT_LEVEL, 1);
usleep_range(20000, 30000);
while ((skb = skb_dequeue(&dev->mt76.mmio.mcu.res_q)) != NULL)
while ((skb = skb_dequeue(&dev->mt76.mcu.res_q)) != NULL)
dev_kfree_skb(skb);
return 0;

4
drivers/net/wireless/mediatek/mt76/mt76x02_mmio.c
View file

@ -544,9 +544,9 @@ static void mt76x02_check_tx_hang(struct mt76x02_dev *dev)
restart:
mt76x02_watchdog_reset(dev);
mutex_lock(&dev->mt76.mmio.mcu.mutex);
mutex_lock(&dev->mt76.mcu.mutex);
dev->mcu_timeout = 0;
mutex_unlock(&dev->mt76.mmio.mcu.mutex);
mutex_unlock(&dev->mt76.mcu.mutex);
dev->tx_hang_reset++;
dev->tx_hang_check = 0;

1
drivers/net/wireless/mediatek/mt76/mt76x02_txrx.c
View file

@ -39,7 +39,6 @@ void mt76x02_queue_rx_skb(struct mt76_dev *mdev, enum mt76_rxq_id q,
void *rxwi = skb->data;
if (q == MT_RXQ_MCU) {
/* this is used just by mmio code */
mt76_mcu_rx_event(&dev->mt76, skb);
return;
}

23
drivers/net/wireless/mediatek/mt76/mt76x02_usb_mcu.c
View file

@ -83,18 +83,17 @@ static int
__mt76x02u_mcu_send_msg(struct mt76_dev *dev, struct sk_buff *skb,
int cmd, bool wait_resp)
{
struct mt76_usb *usb = &dev->usb;
int ret;
u8 seq = 0;
u32 info;
int ret;
if (test_bit(MT76_REMOVED, &dev->phy.state))
return 0;
if (wait_resp) {
seq = ++usb->mcu.msg_seq & 0xf;
seq = ++dev->mcu.msg_seq & 0xf;
if (!seq)
seq = ++usb->mcu.msg_seq & 0xf;
seq = ++dev->mcu.msg_seq & 0xf;
}
info = FIELD_PREP(MT_MCU_MSG_CMD_SEQ, seq) |
@ -121,7 +120,6 @@ static int
mt76x02u_mcu_send_msg(struct mt76_dev *dev, int cmd, const void *data,
int len, bool wait_resp)
{
struct mt76_usb *usb = &dev->usb;
struct sk_buff *skb;
int err;
@ -129,9 +127,9 @@ mt76x02u_mcu_send_msg(struct mt76_dev *dev, int cmd, const void *data,
if (!skb)
return -ENOMEM;
mutex_lock(&usb->mcu.mutex);
mutex_lock(&dev->mcu.mutex);
err = __mt76x02u_mcu_send_msg(dev, skb, cmd, wait_resp);
mutex_unlock(&usb->mcu.mutex);
mutex_unlock(&dev->mcu.mutex);
return err;
}
@ -145,9 +143,8 @@ static int
mt76x02u_mcu_wr_rp(struct mt76_dev *dev, u32 base,
const struct mt76_reg_pair *data, int n)
{
const int CMD_RANDOM_WRITE = 12;
const int max_vals_per_cmd = MT_INBAND_PACKET_MAX_LEN / 8;
struct mt76_usb *usb = &dev->usb;
const int CMD_RANDOM_WRITE = 12;
struct sk_buff *skb;
int cnt, i, ret;
@ -166,9 +163,9 @@ mt76x02u_mcu_wr_rp(struct mt76_dev *dev, u32 base,
skb_put_le32(skb, data[i].value);
}
mutex_lock(&usb->mcu.mutex);
mutex_lock(&dev->mcu.mutex);
ret = __mt76x02u_mcu_send_msg(dev, skb, CMD_RANDOM_WRITE, cnt == n);
mutex_unlock(&usb->mcu.mutex);
mutex_unlock(&dev->mcu.mutex);
if (ret)
return ret;
@ -202,7 +199,7 @@ mt76x02u_mcu_rd_rp(struct mt76_dev *dev, u32 base,
skb_put_le32(skb, data[i].value);
}
mutex_lock(&usb->mcu.mutex);
mutex_lock(&dev->mcu.mutex);
usb->mcu.rp = data;
usb->mcu.rp_len = n;
@ -213,7 +210,7 @@ mt76x02u_mcu_rd_rp(struct mt76_dev *dev, u32 base,
usb->mcu.rp = NULL;
mutex_unlock(&usb->mcu.mutex);
mutex_unlock(&dev->mcu.mutex);
return ret;
}

3
drivers/net/wireless/mediatek/mt76/usb.c
View file

@ -1167,14 +1167,13 @@ int mt76u_init(struct mt76_dev *dev,
usb->data_len = usb_maxpacket(udev, usb_sndctrlpipe(udev, 0), 1);
if (usb->data_len < 32)
usb->data_len = 32;
usb->data = devm_kmalloc(dev->dev, usb->data_len, GFP_KERNEL);
if (!usb->data) {
mt76u_deinit(dev);
return -ENOMEM;
}
mutex_init(&usb->mcu.mutex);
mutex_init(&usb->usb_ctrl_mtx);
dev->bus = &mt76u_ops;
dev->queue_ops = &usb_queue_ops;