On Mon, Mar 13, 2017 at 08:31:16PM +0200, Erez Shitrit wrote:
> TODO: We added remote qkey to ipoib_send in order to match send op
> signature.
> In accel mode this param will be used but in regular mode this param is
> redundant. Need to think about better solution.
The flow is backwards, in accel mode the xmit ndo should be owend by
the driver and the driver should call a helper to get all the proper
AH data, including qkey.
> -static int ipoib_dev_init_default(struct net_device *dev, struct ib_device
> *ca,
> - int port)
> +static int ipoib_dev_init_default(struct net_device *dev,
> + struct ib_device *hca, int *qp_num)
> {
> - struct ipoib_dev_priv *priv = netdev_priv(dev);
> + struct ipoib_dev_priv *priv = ipoib_priv(dev);
> +
> + netif_napi_add(dev, &priv->napi, ipoib_poll, NAPI_POLL_WEIGHT);
All these 'default' functions are part of the 'rn driver'. They should
not be calling ipoib_priv, you said you didn't want ipoib_dev_priv
leaking into the drivers.
These _default funcs should use ipoib_dev_priv and all the members of
ipoib_dev_priv that are used exclusively by the 'default'
implementation need to be moved into a dedicated priv struct.
Otherwise the entire scheme become hugely confusing about what in
ipoib_dev_priv is actually valid in accel mode.
I think it would be much easier to maintain if the _default functions were
all in a dedicated files, eg rn_ipoib_ud_verbs.c
I also recommend splitting out the bulk rename of ipoib_priv into a
single patch with a '#define ipoib_priv(dev) netdev_priv(dev)'
shim. That would make this patch much smaller.
IHMO you probably don't need to send the mlx5 stuff until the series
up to here is OK. I think we all understand that mlx5 can implement
this API?
Jason
