diff options
| author | Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> | 2018-03-24 23:11:19 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-03-26 19:34:19 +0300 |
| commit | ce9134dff6d90c9f9c6bfd3d32dffdadf8a8e668 (patch) | |
| tree | 31d1d20a17f55a093aa04a762c84b1064443e880 /drivers | |
| parent | 246e30cc4fd8db8390e83617fa5ff29ad5280ad9 (diff) | |
| download | linux-ce9134dff6d90c9f9c6bfd3d32dffdadf8a8e668.tar.xz | |
sh_eth: add sh_eth_cpu_data::no_tx_cntrs flag
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>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/renesas/sh_eth.c | 8 | ||||
| -rw-r--r-- | drivers/net/ethernet/renesas/sh_eth.h | 1 |
2 files changed, 3 insertions, 6 deletions
diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c index 294fecd42901..f1cd354b8f1c 100644 --- a/drivers/net/ethernet/renesas/sh_eth.c +++ b/drivers/net/ethernet/renesas/sh_eth.c @@ -455,11 +455,6 @@ static bool sh_eth_is_gether(struct sh_eth_private *mdp) return mdp->reg_offset == sh_eth_offset_gigabit; } -static bool sh_eth_is_rz_fast_ether(struct sh_eth_private *mdp) -{ - return mdp->reg_offset == sh_eth_offset_fast_rz; -} - static void sh_eth_select_mii(struct net_device *ndev) { struct sh_eth_private *mdp = netdev_priv(ndev); @@ -614,6 +609,7 @@ static struct sh_eth_cpu_data r7s72100_data = { .xdfar_rw = 1, .hw_checksum = 1, .tsu = 1, + .no_tx_cntrs = 1, }; static void sh_eth_chip_reset_r8a7740(struct net_device *ndev) @@ -2534,7 +2530,7 @@ static struct net_device_stats *sh_eth_get_stats(struct net_device *ndev) { struct sh_eth_private *mdp = netdev_priv(ndev); - if (sh_eth_is_rz_fast_ether(mdp)) + if (mdp->cd->no_tx_cntrs) return &ndev->stats; if (!mdp->is_opened) diff --git a/drivers/net/ethernet/renesas/sh_eth.h b/drivers/net/ethernet/renesas/sh_eth.h index 25c0b1db060a..7ea162a56c77 100644 --- a/drivers/net/ethernet/renesas/sh_eth.h +++ b/drivers/net/ethernet/renesas/sh_eth.h @@ -514,6 +514,7 @@ struct sh_eth_cpu_data { unsigned rmiimode:1; /* EtherC has RMIIMODE register */ unsigned rtrate:1; /* EtherC has RTRATE register */ unsigned magic:1; /* EtherC has ECMR.MPDE and ECSR.MPD */ + unsigned no_tx_cntrs:1; /* EtherC DOES NOT have TX error counters */ unsigned dual_port:1; /* Dual EtherC/E-DMAC */ }; |