On Mon, 31 Dec 2007 20:22:52 -0600
Jay Cliburn <[EMAIL PROTECTED]> wrote:
> Add support for NAPI, styled after the e1000 NAPI implementation. That we
> follow the e1000 for NAPI shouldn't come as much of a surprise, since the
> entire atl1 driver is based heavily upon it.
>
> Signed-off-by: Jay Cliburn <[EMAIL PROTECTED]>
> ---
> drivers/net/Kconfig | 14 ++++
> drivers/net/atlx/atl1.c | 151
> +++++++++++++++++++++++++++++++++++++++++++++--
> drivers/net/atlx/atl1.h | 20 ++++++
> drivers/net/atlx/atlx.h | 7 ++-
> 4 files changed, 186 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
> index d9107e5..095629f 100644
> --- a/drivers/net/Kconfig
> +++ b/drivers/net/Kconfig
> @@ -2371,6 +2371,20 @@ config ATL1
> To compile this driver as a module, choose M here. The module
> will be called atl1.
>
> +config ATL1_NAPI
> + bool "Use Rx Polling (NAPI) (EXPERIMENTAL)"
> + depends on ATL1 && EXPERIMENTAL
> + help
> + NAPI is a new driver API designed to reduce CPU and interrupt load
> + when the driver is receiving lots of packets from the card. It is
> + still somewhat experimental and thus not yet enabled by default.
> +
> + If your estimated Rx load is 10kpps or more, or if the card will be
> + deployed on potentially unfriendly networks (e.g. in a firewall),
> + then say Y here.
> +
> + If in doubt, say N.
> +
> endif # NETDEV_1000
>
> #
> diff --git a/drivers/net/atlx/atl1.c b/drivers/net/atlx/atl1.c
> index 237622e..10bccf6 100644
> --- a/drivers/net/atlx/atl1.c
> +++ b/drivers/net/atlx/atl1.c
> @@ -756,7 +756,16 @@ static void atl1_set_mac_addr(struct atl1_hw *hw)
>
> static int atl1_alloc_queues(struct atl1_adapter *adapter)
> {
> - /* temporary placeholder function for NAPI */
> +#ifdef CONFIG_ATL1_NAPI
> + int size;
> +
> + size = sizeof(struct net_device) * adapter->num_rx_queues;
> + adapter->polling_netdev = kmalloc(size, GFP_KERNEL);
> + if (!adapter->polling_netdev)
> + return -ENOMEM;
> +
> + memset(adapter->polling_netdev, 0, size);
> +#endif
You don't need to allocate pseudo-devices anymore in 2.6.24 or later.
rework to just use napi structures.
--
Stephen Hemminger <[EMAIL PROTECTED]>
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