[PATCH 01/15] [PS3] Add udbg driver using the PS3 gelic Ethernet device

[Andre Heider]

On Thu, Aug 4, 2011 at 12:32 AM, Geoff Levand <geoff at infradead.org> wrote:
> On 08/01/2011 01:02 PM, Andre Heider wrote:
>> --- /dev/null
>> +++ b/arch/powerpc/platforms/ps3/gelic_udbg.c
>> @@ -0,0 +1,272 @@
>> +/*
>> + * arch/powerpc/platforms/ps3/gelic_udbg.c
>
> Don't put file names in files.  When the file gets moved, then this will
> no longer be correct.
>
>> + *
>> + * udbg debug output routine via GELIC UDP broadcasts
>> + * Copyright (C) 2010 Hector Martin <hector at marcansoft.com>
>> + * Copyright (C) 2011 Andre Heider <a.heider at gmail.com>
>
> Some of this seems to be taken from the gelic driver, so shouldn't
> the copyright info from there be included here?
>
>> + * This program is free software; you can redistribute it and/or
>> + * modify it under the terms of the GNU General Public License
>> + * as published by the Free Software Foundation; either version 2
>> + * of the License, or (at your option) any later version.
>> + *
>> + */
>> +
>> +#include <asm/io.h>
>> +#include <asm/udbg.h>
>> +#include <asm/lv1call.h>
>> +
>> +#define GELIC_BUS_ID 1
>> +#define GELIC_DEVICE_ID 0
>> +#define GELIC_DEBUG_PORT 18194
>> +#define GELIC_MAX_MESSAGE_SIZE 1000
>> +
>> +#define GELIC_LV1_GET_MAC_ADDRESS 1
>> +#define GELIC_LV1_GET_VLAN_ID 4
>> +#define GELIC_LV1_VLAN_TX_ETHERNET_0 2
>> +
>> +#define GELIC_DESCR_DMA_STAT_MASK 0xf0000000
>> +#define GELIC_DESCR_DMA_CARDOWNED 0xa0000000
>> +
>> +#define GELIC_DESCR_TX_DMA_IKE 0x00080000
>> +#define GELIC_DESCR_TX_DMA_NO_CHKSUM 0x00000000
>> +#define GELIC_DESCR_TX_DMA_FRAME_TAIL 0x00040000
>> +
>> +#define GELIC_DESCR_DMA_CMD_NO_CHKSUM (GELIC_DESCR_DMA_CARDOWNED | \
>> +                                    GELIC_DESCR_TX_DMA_IKE | \
>> +                                    GELIC_DESCR_TX_DMA_NO_CHKSUM)
>> +
>> +static u64 bus_addr;
>> +
>> +struct gelic_descr {
>> +     /* as defined by the hardware */
>
> These are BE from the hardware, so should be __beXX types.
>
>> +     u32 buf_addr;
>> +     u32 buf_size;
>> +     u32 next_descr_addr;
>> +     u32 dmac_cmd_status;
>> +     u32 result_size;
>> +     u32 valid_size; /* all zeroes for tx */
>> +     u32 data_status;
>> +     u32 data_error; /* all zeroes for tx */
>> +} __attribute__((aligned(32)));
>
> ...
>
>> +static void gelic_debug_init(void)
>> +{
>
> ...
>
>> +     result = lv1_net_control(GELIC_BUS_ID, GELIC_DEVICE_ID,
>> +                              GELIC_LV1_GET_VLAN_ID,
>> +                              GELIC_LV1_VLAN_TX_ETHERNET_0, 0, 0,
>> +                              &vlan_id, &v2);
>> +     if (result == 0) {
>
> This should be 'if (!result)'

Ack on all points.