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
Biju Das (9):
ravb: Use unsigned int for num_tx_desc variable in struct ravb_private
ravb: Add struct ravb_hw_info to driver data
ravb: Add aligned_tx to struct ravb_hw_info
ravb: Add max_rx_len to struct ravb_hw_info
ravb: Add stats_len to struct ravb_hw_info
ravb: Add gstrings_stats and gstrings_size to struct ravb_hw_info
ravb: Add net_features and net_hw_features to struct ravb_hw_info
ravb: Add internal delay hw feature to struct ravb_hw_info
ravb: Add tx_counters to struct ravb_hw_info
drivers/net/ethernet/renesas/ravb.h | 19 +++-
drivers/net/ethernet/renesas/ravb_main.c | 112 ++++++++++++++---------
2 files changed, 89 insertions(+), 42 deletions(-)
--
2.17.1
