netdev - Re: [PATCH net-next] net: ena: Add a driver for Amazon Elastic Network Adapters (ENA)

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Date:	Tue, 21 Jun 2016 13:02:24 +0300
From:	Netanel Belgazal <netanel@...apurnalabs.com>
To:	Francois Romieu <romieu@...zoreil.com>
Cc:	netdev@...r.kernel.org, davem@...emloft.net,
	linux-kernel@...r.kernel.org, zorik@...apurnalabs.com,
	saeed@...apurnalabs.com, alex@...apurnalabs.com, msw@...zon.com,
	aligouri@...zon.com, antoine.tenart@...e-electrons.com
Subject: Re: [PATCH net-next] net: ena: Add a driver for Amazon Elastic
 Network Adapters (ENA)



On 06/21/2016 01:43 AM, Francois Romieu wrote:
> Netanel Belgazal <netanel@...apurnalabs.com> :
> [...]
>>> diff --git a/drivers/net/ethernet/amazon/ena/ena_com.h b/drivers/net/ethernet/amazon/ena/ena_com.h
>>> new file mode 100644
>>> index 0000000..e49ba43
>>> --- /dev/null
>>> [...]
>>> +static inline void ena_com_update_intr_reg(struct ena_eth_io_intr_reg *intr_reg,
>>> +					   u32 rx_delay_interval,
>>> +					   u32 tx_delay_interval,
>>> +					   bool unmask)
>>> +{
>>> +	intr_reg->intr_control = 0;
>>> +	intr_reg->intr_control |= rx_delay_interval &
>>> +		ENA_ETH_IO_INTR_REG_RX_INTR_DELAY_MASK;
>>> +
>>> +	intr_reg->intr_control |=
>>> +		(tx_delay_interval << ENA_ETH_IO_INTR_REG_TX_INTR_DELAY_SHIFT)
>>> +		& ENA_ETH_IO_INTR_REG_RX_INTR_DELAY_MASK;
>>>                                       ^^ TX ?
>>>
>>> Extra: you should not return NETDEV_TX_BUSY in the xmit handler while
>>> queueing is still enabled. Please drop packet and return NETDEV_TX_OK.
>> Ack.
>>
>> Thanks for your review.
> Ack/nack regarding use of ..._RX_INTR_DELAY_MASK with ..._TX_INTR_DELAY_SHIFT ?
You are right, it should have been TX_INTR_DELAY_SHIFT.
I'll fix that.