On 18.12.2013 21:35, Hauke Mehrtens wrote:
> On 12/18/2013 05:08 PM, Stefan Assmann wrote:
>> - add EEE defines
>> - add struct ethtool_eee
>> - backport __skb_alloc_page and __skb_alloc_pages
>> - add patches/collateral-evolutions/network/82-ethernet/0006-igb_eee.patch
>>
>> Signed-off-by: Stefan Assmann <sassmann@xxxxxxxxx>
>> ---
>> backport/backport-include/linux/ethtool.h | 31 +++++++++++++++
>> backport/backport-include/linux/gfp.h | 10 +++++
>> backport/backport-include/linux/mdio.h | 23 ++++++++++-
>> backport/backport-include/linux/skbuff.h | 46 ++++++++++++++++++++++
>> .../network/82-ethernet/0006-igb_eee.patch | 15 +++++++
>> 5 files changed, 124 insertions(+), 1 deletion(-)
>> create mode 100644 backport/backport-include/linux/gfp.h
>> create mode 100644 patches/collateral-evolutions/network/82-ethernet/0006-igb_eee.patch
>>
>> diff --git a/backport/backport-include/linux/ethtool.h b/backport/backport-include/linux/ethtool.h
>> index 647fbf6..4f13cb9 100644
>> --- a/backport/backport-include/linux/ethtool.h
>> +++ b/backport/backport-include/linux/ethtool.h
>> @@ -42,4 +42,35 @@ static inline __u32 ethtool_cmd_speed(const struct ethtool_cmd *ep)
>> }
>> #endif
>>
>> +#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,0,0) && LINUX_VERSION_CODE < KERNEL_VERSION(3,6,0)
>> +/**
>> + * struct ethtool_eee - Energy Efficient Ethernet information
>> + * @cmd: ETHTOOL_{G,S}EEE
>> + * @supported: Mask of %SUPPORTED_* flags for the speed/duplex combinations
>> + * for which there is EEE support.
>> + * @advertised: Mask of %ADVERTISED_* flags for the speed/duplex combinations
>> + * advertised as eee capable.
>> + * @lp_advertised: Mask of %ADVERTISED_* flags for the speed/duplex
>> + * combinations advertised by the link partner as eee capable.
>> + * @eee_active: Result of the eee auto negotiation.
>> + * @eee_enabled: EEE configured mode (enabled/disabled).
>> + * @tx_lpi_enabled: Whether the interface should assert its tx lpi, given
>> + * that eee was negotiated.
>> + * @tx_lpi_timer: Time in microseconds the interface delays prior to asserting
>> + * its tx lpi (after reaching 'idle' state). Effective only when eee
>> + * was negotiated and tx_lpi_enabled was set.
>> + */
>> +struct ethtool_eee {
>> + __u32 cmd;
>> + __u32 supported;
>> + __u32 advertised;
>> + __u32 lp_advertised;
>> + __u32 eee_active;
>> + __u32 eee_enabled;
>> + __u32 tx_lpi_enabled;
>> + __u32 tx_lpi_timer;
>> + __u32 reserved[2];
>> +};
>> +#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(3,0,0) && LINUX_VERSION_CODE < KERNEL_VERSION(3,6,0) */
>
> The get_eee and set_eee callbacks in struct ethtool_ops are not
> available on this kernel, you could also add a #ifdef <kernel version>
> around igb_get_eee() and igb_set_eee() and remove the struct here.
True, but that would result in more ifdefs in igb and I'd like to keep
the number at a minimum. Results in less maintenance work if upstream
changes.
Stefan
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