octeontx2-af: cn10kb: Add RPM_USX MAC support
OcteonTx2's next gen platform the CN10KB has RPM_USX MAC which has a different serdes when compared to RPM MAC. Though the underlying HW is different, the CSR interface has been designed largely inline with RPM MAC, with few exceptions though. So we are using the same CGX driver for RPM_USX MAC as well and will have a different set of APIs for RPM_USX where ever necessary. The RPM and RPM_USX blocks support a different number of LMACS. RPM_USX support 8 LMACS per MAC block whereas legacy RPM supports only 4 LMACS per MAC. with this RPM_USX support double the number of DMAC filters and fifo size. This patch adds initial support for CN10KB's RPM_USX MAC i.e registering the driver and defining MAC operations (mac_ops). Adds the logic to configure internal loopback and pause frames and assign FIFO length to LMACS. Kernel reads lmac features like lmac type, autoneg, etc from shared firmware data this structure only supports 4 lmacs per MAC, this patch extends this structure to accommodate 8 lmacs. Signed-off-by: Hariprasad Kelam <hkelam@marvell.com> Signed-off-by: Sunil Kovvuri Goutham <sgoutham@marvell.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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