Merge branch 'ravb-gbit'

Biju Das says:

====================
ravb: Add Gigabit Ethernet driver support

The DMAC and EMAC blocks of Gigabit Ethernet IP found on RZ/G2L SoC are
similar to the R-Car Ethernet AVB IP.

The Gigabit Ethernet IP consists of Ethernet controller (E-MAC), Internal
TCP/IP Offload Engine (TOE)  and Dedicated Direct memory access controller
(DMAC).

With a few changes in the driver we can support both IPs.

Currently a runtime decision based on the chip type is used to distinguish
the HW differences between the SoC families.

This patch series is in preparation for supporting the RZ/G2L SoC by
replacing driver data chip type with struct ravb_hw_info by moving chip
type to it and also adding gstrings_stats, gstrings_size, net_hw_features,
net_features, aligned_tx, stats_len, max_rx_len variables to
it. This patch also adds the feature bit for {RX, TX} clock internal
delays and TX counters HW features found on R-Car Gen3 to struct
ravb_hw_info.

This patch series is based on net-next.
v2->v3:
 * Removed num_gstat_queue variable from struct ravb_hw_info.
 * started using unsigned int for num_tx_desc variable in struct ravb_private
 * split the patch 'Add struct ravb_hw_info to driver data' into two
 * Renamed skb_sz to max_rx_len and tx_drop_cntrs to tx_counters
   and also updated the comments.
v1->v2:
 * Replaced driver data chip type with struct ravb_hw_info
 * Added gstrings_stats, gstrings_size, net_hw_features, net_features,
   num_gstat_queue, num_tx_desc, stats_len, skb_sz to struct ravb_hw_info
 * Added internal_delay and tx_drop_cntrs hw feature bit to struct ravb_hw_info

RFC->V1
  * Incorporated feedback from Andrew, Sergei, Geert and Prabhakar
  * https://patchwork.kernel.org/project/linux-renesas-soc/list/?series=515525
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

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