sh_eth: add sh_eth_cpu_data::no_tx_cntrs flag

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RZ/A1H (R7S72100) Ether controller doesn't  seem to have the TX counter
registers like TROCR/CDCR/LCCR (or at least they are still undocumented
like some TSU registers), so we bail out of sh_eth_get_stats() early in
this case.  Currently we are calling sh_eth_is_rz_fast_ether() in order
to check for this, but it would be simpler to check the new 'no_tx_cntrs'
bitfield in the 'struct sh_eth_cpu_data'; then we'd be able  to remove
sh_eth_is_rz_fast_ether() as there would be no callers left...

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

...

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Sergei Shtylyov 2018-03-24 23:11:19 +03:00 • committed by David S. Miller

parent 246e30cc4f

commit ce9134dff6

2 changed files with 3 additions and 6 deletions

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8

drivers/net/ethernet/renesas/sh_eth.c

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1

drivers/net/ethernet/renesas/sh_eth.h

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