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mt76: implement functions to get the response skb for MCU calls

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Can be used by the caller to get the response data directly instead of using the
hack of storing the result in internal data structures from .mcu_parse_response

Signed-off-by: Felix Fietkau <[email protected]>
This commit is contained in:
Felix Fietkau
2020-09-30 05:35:49 +02:00
parent 80c310c59a
commit 082b261810
2 changed files with 32 additions and 12 deletions
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mcu.c
+15 -8
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@@ -51,8 +51,8 @@ void mt76_mcu_rx_event(struct mt76_dev *dev, struct sk_buff *skb)
}
EXPORT_SYMBOL_GPL(mt76_mcu_rx_event);
int mt76_mcu_send_msg(struct mt76_dev *dev, int cmd, const void *data,
int len, bool wait_resp)
int mt76_mcu_send_and_get_msg(struct mt76_dev *dev, int cmd, const void *data,
int len, bool wait_resp, struct sk_buff **ret_skb)
{
struct sk_buff *skb;
@@ -63,16 +63,20 @@ int mt76_mcu_send_msg(struct mt76_dev *dev, int cmd, const void *data,
if (!skb)
return -ENOMEM;
return mt76_mcu_skb_send_msg(dev, skb, cmd, wait_resp);
return mt76_mcu_skb_send_and_get_msg(dev, skb, cmd, wait_resp, ret_skb);
}
EXPORT_SYMBOL_GPL(mt76_mcu_send_msg);
EXPORT_SYMBOL_GPL(mt76_mcu_send_and_get_msg);
int mt76_mcu_skb_send_msg(struct mt76_dev *dev, struct sk_buff *skb,
int cmd, bool wait_resp)
int mt76_mcu_skb_send_and_get_msg(struct mt76_dev *dev, struct sk_buff *skb,
int cmd, bool wait_resp,
struct sk_buff **ret_skb)
{
unsigned long expires;
int ret, seq;
if (ret_skb)
*ret_skb = NULL;
mutex_lock(&dev->mcu.mutex);
ret = dev->mcu_ops->mcu_skb_send_msg(dev, skb, cmd, &seq);
@@ -89,7 +93,10 @@ int mt76_mcu_skb_send_msg(struct mt76_dev *dev, struct sk_buff *skb,
do {
skb = mt76_mcu_get_response(dev, expires);
ret = dev->mcu_ops->mcu_parse_response(dev, cmd, skb, seq);
dev_kfree_skb(skb);
if (!ret && ret_skb)
*ret_skb = skb;
else
dev_kfree_skb(skb);
} while (ret == -EAGAIN);
out:
@@ -97,4 +104,4 @@ out:
return ret;
}
EXPORT_SYMBOL_GPL(mt76_mcu_skb_send_msg);
EXPORT_SYMBOL_GPL(mt76_mcu_skb_send_and_get_msg);