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Re: [PATCH 3.13.1 1/9] rsi: Add RS9113 driver

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Hi Johannes, 
Thank you for the review comments, will make the changes
as you have suggested. A-MPDU indication frames are sent 
to the firmware to start/stop tx/rx ampdu aggregation.

Regards,
Jahnavi

On 01/30/2014 09:48 PM, Johannes Berg wrote:
> On Thu, 2014-01-30 at 21:23 +0530, Jahnavi wrote:
>> From: Jahnavi Meher <jahnavi.meher@xxxxxxxxxxxxxxxxxx>
>>
>> This driver supports the RS9113 chipset from Redpine Signals Inc. This
>> chipset supports the 802.11a/b/g/n standards, but this driver currently
>> supports only b/g/n. Both SDIO and USB interfaces are supported. Can be
>> upgraded to 91x quite easily. More information can be found at:
>> http://www.redpinesignals.com/Technologies_&_Chipsets/Chipsets/RS9113.php
> You should probably propose it for staging... let me take a few minutes
> and make a quick review pass.
>
>> +/**
>> + * @file rsi_device_ops.h
>> + * @author
>> + * @version 1.0
>> + *
>> + * @section LICENSE
> Those lines are all useless
>
>> + * Copyright (c) 2013 Redpine Signals Inc.
> It's 2014 now, surely you want to claim copyright this year?
>
>> + * @section DESCRIPTION
> That's unnecessary.
>
>> + * This file contians the data structures and variables/ macros commonly
> contains
>
>> +#define RSI_HEADER_SIZE                 18
> That should probably be some struct, and the define doing sizeof()?
>
>> +static inline unsigned int rsi_get_queueno(unsigned char *addr,
>> +					   unsigned short offset)
>> +{
>> +	return (le16_to_cpu(*(unsigned short *)&addr[offset]) & 0x7000) >> 12;
>> +static inline unsigned int rsi_get_length(unsigned char *addr,
>> +					  unsigned short offset)
>> +static inline unsigned char rsi_get_extended_desc(unsigned char *addr,
>> +						  unsigned short offset)
>> +static inline unsigned char rsi_get_rssi(unsigned char *addr)
>> +static inline unsigned char rsi_get_channel(unsigned char *addr)
> These seem like they should then just be replaced by
>
> 	some_struct_ptr->rssi
>
> and similar?
>
>> +int rsi_send_ampdu_indication_frame(struct rsi_common *common,
>> +				    unsigned short tid,
>> +				    unsigned short ssn, unsigned char buf_size,
>> +				    unsigned char event);
> what are "A-MPDU indication frame[s]"?
>
>> +#ifdef USE_USB_INTF
> Shouldn't that be just CONFIG_RSI_SOMETHING?
>
>> +typedef void (*SD_INTERRUPT)(void *pcontext);
> no typedefs please
>
>> +#define SDIO_BLOCK_SIZE                         256
> Seems like there should be a define for that already?
>
>
>> +++ b/drivers/net/wireless/rsi/include/rsi_mac80211.h	2014-01-30 16:01:00.194777922 +0530
>> +static const struct ieee80211_channel rsi_2ghz_channels[] = {
>> +static const struct ieee80211_channel rsi_5ghz_channels[] = {
>> +static struct ieee80211_rate rsi_rates[] = {
>> +static const unsigned short rsi_mcsrates[] = {
> None of this belongs into a header file.
>
>> + * This file contians the os dependent( Linux) specific function prototypes
>> + * and macros
> That kind of thing is generally frowned upon.
>
>> +void rsi_print(int zone, unsigned char *vdata, int len);
> Unless it's more than just a simple printk wrapper?
>
>> +struct module_ps_config {
>> +	unsigned int not_in_use:1;
>> +	unsigned int clock_gate:1;
>> +	unsigned int logical_prgm:1;
>> +	unsigned int logical_poweroff:1;
>> +	unsigned int power_off:1;
>> +	unsigned int resvd:27;
>> +};
> Uh, no, you can't use bitfields in hardware/firmware communication
> structs. They also need to be __packed, in most cases.
>
>> +struct rsi_mac_frame {
> All those unions seem a bit ... overblown? Probably better to define
> separate structs for different usages and cast appropriately.
>
> johannes
>
>
>


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