lkml.org 
[lkml]   [2016]   [Jul]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH net-next V3] net: ena: Add a driver for Amazon Elastic Network Adapters (ENA)
On Thu, Jul 14, 2016 at 09:46:14AM +0300, Netanel Belgazal wrote:
> This is a driver for the ENA family of networking devices.
>
> Signed-off-by: Netanel Belgazal <netanel@annapurnalabs.com>
> ---
>
> Notes:

...

> - Increase driver version to 1.0.2

...

> +static void ena_get_drvinfo(struct net_device *dev,
> + struct ethtool_drvinfo *info)
> +{
> + struct ena_adapter *adapter = netdev_priv(dev);
> +
> + strlcpy(info->driver, DRV_MODULE_NAME, sizeof(info->driver));
> + strlcpy(info->version, DRV_MODULE_VERSION, sizeof(info->version));

Does module version give anything valuable in real life usage?
Do you plan to bump version after every patch?

Hint, NO.

> + strlcpy(info->bus_info, pci_name(adapter->pdev),
> + sizeof(info->bus_info));
> +}
> +
> +

...

> +
> +static char version[] =
> + DEVICE_NAME " v"
> + DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n";
> +
> +MODULE_AUTHOR("Amazon.com, Inc. or its affiliates");
> +MODULE_DESCRIPTION(DEVICE_NAME);
> +MODULE_LICENSE("GPL");
> +MODULE_VERSION(DRV_MODULE_VERSION);
> +
> +/* Time in jiffies before concluding the transmitter is hung. */
> +#define TX_TIMEOUT (5 * HZ)
> +
> +#define ENA_NAPI_BUDGET 64
> +
> +#define DEFAULT_MSG_ENABLE (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_IFUP | \
> + NETIF_MSG_TX_DONE | NETIF_MSG_TX_ERR | NETIF_MSG_RX_ERR)
> +static int debug = -1;
> +module_param(debug, int, 0);
> +MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)");

What is it?

> +
> +static int push_mode;
> +module_param(push_mode, int, 0);
> +MODULE_PARM_DESC(push_mode, "Descriptor / header push mode (0=automatic,1=disable,3=enable)\n"
> + "\t\t\t 0 - Automatically choose according to device capability (default)\n"
> + "\t\t\t 1 - Don't push anything to device memory\n"
> + "\t\t\t 3 - Push descriptors and header buffer to device memory");
> +
> +static int enable_wd = 1;
> +module_param(enable_wd, int, 0);
> +MODULE_PARM_DESC(enable_wd, "Enable keepalive watchdog (0=disable,1=enable,default=1)");
> +
> +static int enable_missing_tx_detection = 1;
> +module_param(enable_missing_tx_detection, int, 0);
> +MODULE_PARM_DESC(enable_missing_tx_detection, "Enable missing Tx completions. (default=1)");
> +
> +static int numa_node_override_array[NR_CPUS] = {[0 ... (NR_CPUS - 1)] = NUMA_NO_NODE };
> +module_param_array(numa_node_override_array, int, NULL, 0);
> +MODULE_PARM_DESC(numa_node_override_array, "Numa node override map\n");
> +
> +static int numa_node_override;
> +module_param(numa_node_override, int, 0);
> +MODULE_PARM_DESC(numa_node_override, "Enable/Disable numa node override (0=disable)\n");

As fas as I remember, new drivers are not supposed to add module
parameters.

...

> +
> +#define DRV_MODULE_VER_MAJOR 1
> +#define DRV_MODULE_VER_MINOR 0
> +#define DRV_MODULE_VER_SUBMINOR 1
> +
> +#define DRV_MODULE_NAME "ena"
> +#ifndef DRV_MODULE_VERSION
> +#define DRV_MODULE_VERSION \
> + __stringify(DRV_MODULE_VER_MAJOR) "." \
> + __stringify(DRV_MODULE_VER_MINOR) "." \
> + __stringify(DRV_MODULE_VER_SUBMINOR)
> +#endif
> +#define DRV_MODULE_RELDATE "22-JUNE-2016"

Please remove it, driver version is useless in real life kernel usage.

[unhandled content-type:application/pgp-signature]
\
 
 \ /
  Last update: 2016-07-15 07:41    [W:0.094 / U:0.676 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site