netdev - Re: [PATCH 1/4] net: hns: add Hisilicon RoCE support(the dependent routine)

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Date:	Wed, 9 Mar 2016 19:20:11 +0800
From:	oulijun <oulijun@...wei.com>
To:	"Wei Hu(Xavier)" <xavier.huwei@...wei.com>, <dledford@...hat.com>,
	<sean.hefty@...el.com>, <hal.rosenstock@...il.com>,
	<davem@...emloft.net>, <jeffrey.t.kirsher@...el.com>,
	<jiri@...lanox.com>, <ogerlitz@...lanox.com>,
	<linux-rdma@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<netdev@...r.kernel.org>, <gongyangming@...wei.com>,
	<xiaokun@...wei.com>, <tangchaofei@...wei.com>,
	<haifeng.wei@...wei.com>, <yisen.zhuang@...wei.com>,
	<yankejian@...wei.com>, <lisheng011@...wei.com>,
	<charles.chenxin@...wei.com>, <linuxarm@...wei.com>
Subject: Re: [PATCH 1/4] net: hns: add Hisilicon RoCE support(the dependent
 routine)

Hi, dledford
thanks your reviewing.
I will send a new patch soon.

thanks
Lijun Ou
On 2016/3/6 22:25, Leon Romanovsky wrote:
> Please rewrite your title to be without (...).
> 
> On Fri, Mar 04, 2016 at 04:41:14PM +0800, Wei Hu(Xavier) wrote:
>> It added hns_dsaf_roce_reset routine for roce driver.
>> RoCE is a feature of hns.
>> In hip06 SOC, in roce reset process, it's needed to configure
>> dsaf channel reset,port and sl map info.
>>
>> Signed-off-by: Wei Hu(Xavier) <xavier.huwei@...wei.com>
>> Signed-off-by: Lisheng <lisheng011@...wei.com>
>> Signed-off-by: oulijun <oulijun@...wei.com>
>> ---
>>  drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c | 82 ++++++++++++++++++++++
>>  drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.h |  7 ++
>>  drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c | 62 +++++++++++++---
>>  drivers/net/ethernet/hisilicon/hns/hns_dsaf_reg.h  | 14 ++++
>>  4 files changed, 155 insertions(+), 10 deletions(-)
>>
>> diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c
>> index 9439f04..41ba948 100644
>> --- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c
>> +++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c
>> @@ -12,6 +12,7 @@
>>  #include <linux/init.h>
>>  #include <linux/interrupt.h>
>>  #include <linux/netdevice.h>
>> +#include <linux/of_platform.h>
>>  #include <linux/platform_device.h>
>>  #include <linux/of.h>
>>  #include <linux/of_address.h>
>> @@ -2556,6 +2557,87 @@ static struct platform_driver g_dsaf_driver = {
>>  
>>  module_platform_driver(g_dsaf_driver);
>>  
>> +/**
>> + * hns_dsaf_roce_reset - reset dsaf and roce
>> + * @dsaf_fwnode: Pointer to framework node for the dasf
>> + * @val: 0 - request reset , 1 - drop reset
>> + * retuen 0 - success , negative --fail
>> + */
>> +int hns_dsaf_roce_reset(struct fwnode_handle *dsaf_fwnode, u32 val)
>> +{
>> +	struct dsaf_device *dsaf_dev;
>> +	struct platform_device *pdev;
>> +	unsigned int mp;
>> +	unsigned int sl;
>> +	unsigned int credit;
>> +	int i;
>> +	const u32 port_map[DSAF_ROCE_CREDIT_CHN][DSAF_ROCE_CHAN_MODE] = {
>> +		{0, 0, 0},
>> +		{1, 0, 0},
>> +		{2, 1, 0},
>> +		{3, 1, 0},
>> +		{4, 2, 1},
>> +		{4, 2, 1},
>> +		{5, 3, 1},
>> +		{5, 3, 1},
>> +	};
>> +	const u32 sl_map[DSAF_ROCE_CREDIT_CHN][DSAF_ROCE_CHAN_MODE] = {
>> +		{0, 0, 0},
>> +		{0, 1, 1},
>> +		{0, 0, 2},
>> +		{0, 1, 3},
>> +		{0, 0, 0},
>> +		{1, 1, 1},
>> +		{0, 0, 2},
>> +		{1, 1, 3},
>> +	};
> 
> Please prefer enums/defines instead of hard coded values.
> it is applicable to whole submitted code.
> 
> 
> .
>