Re: [RFCv3 bluetooth-next 3/6] at86rf230: use aret mode if ackreq is set while xmit

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Hello.

On 30/07/15 10:55, Alexander Aring wrote:
This patch does a different aret mode handling. We will drop the
max_frame_retries "-1" value and check on the ack request bit while
xmit. If it's set we doing transmit in aret mode. If it's not set we
doing a transmit in normal tx mode.

This allows a mixed aret and non aret mode while interface is up and
doesn't depends on the max_frame_retries value inside the mib.

Signed-off-by: Alexander Aring <alex.aring@xxxxxxxxx>
---
  drivers/net/ieee802154/at86rf230.c | 8 ++++----
  1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ieee802154/at86rf230.c b/drivers/net/ieee802154/at86rf230.c
index f7bd9f3..8b9557f 100644
--- a/drivers/net/ieee802154/at86rf230.c
+++ b/drivers/net/ieee802154/at86rf230.c
@@ -99,7 +99,6 @@ struct at86rf230_local {
bool tx_aret;
  	unsigned long cal_timeout;
-	s8 max_frame_retries;
  	bool is_tx;
  	bool is_tx_from_off;
  	u8 tx_retry;
@@ -900,10 +899,14 @@ at86rf230_xmit(struct ieee802154_hw *hw, struct sk_buff *skb)
  {
  	struct at86rf230_local *lp = hw->priv;
  	struct at86rf230_state_change *ctx = &lp->tx;
+	__le16 fc;
lp->tx_skb = skb;
  	lp->tx_retry = 0;
+ fc = ieee802154_get_fc_from_skb(skb);
+	lp->tx_aret = ieee802154_is_ackreq(fc);
+
  	/* After 5 minutes in PLL and the same frequency we run again the
  	 * calibration loops which is recommended by at86rf2xx datasheets.
  	 *
@@ -1267,9 +1270,6 @@ at86rf230_set_frame_retries(struct ieee802154_hw *hw, s8 retries)
  	struct at86rf230_local *lp = hw->priv;
  	int rc = 0;
- lp->tx_aret = retries >= 0;
-	lp->max_frame_retries = retries;
-
  	if (retries >= 0)
  		rc = at86rf230_write_subreg(lp, SR_MAX_FRAME_RETRIES, retries);

Reviewed-by: Stefan Schmidt <stefan@xxxxxxxxxxxxxxx>

regards
Stefan Schmidt
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