diff options
| author | Timur Tabi <timur@codeaurora.org> | 2017-02-08 15:49:27 -0600 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-02-09 17:09:19 -0500 |
| commit | c4e7beea21921733026b6a1bca0652c883d84680 (patch) | |
| tree | a2374e3d8faaf3733e8792df1e60404418dae13a /drivers/net/ethernet/qualcomm/emac/emac-ethtool.c | |
| parent | 15c2e102412d95af4fe88e5b28b3eba124545bbf (diff) | |
| download | linux-next-c4e7beea21921733026b6a1bca0652c883d84680.tar.gz | |
net: qcom/emac: add ethtool support for reading hardware registers
Implement the get_regs_len and get_regs ethtool methods. The driver
returns the values of selected hardware registers.
The make the register offsets known to emac_ethtool, the the register
offset macros are all combined into one header file. They were
inexplicably and arbitrarily split between two files.
Signed-off-by: Timur Tabi <timur@codeaurora.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/qualcomm/emac/emac-ethtool.c')
| -rw-r--r-- | drivers/net/ethernet/qualcomm/emac/emac-ethtool.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/drivers/net/ethernet/qualcomm/emac/emac-ethtool.c b/drivers/net/ethernet/qualcomm/emac/emac-ethtool.c index ca616fd93312..758cd648d666 100644 --- a/drivers/net/ethernet/qualcomm/emac/emac-ethtool.c +++ b/drivers/net/ethernet/qualcomm/emac/emac-ethtool.c @@ -170,6 +170,43 @@ static int emac_set_pauseparam(struct net_device *netdev, return 0; } +/* Selected registers that might want to track during runtime. */ +static const u16 emac_regs[] = { + EMAC_DMA_MAS_CTRL, + EMAC_MAC_CTRL, + EMAC_TXQ_CTRL_0, + EMAC_RXQ_CTRL_0, + EMAC_DMA_CTRL, + EMAC_INT_MASK, + EMAC_AXI_MAST_CTRL, + EMAC_CORE_HW_VERSION, + EMAC_MISC_CTRL, +}; + +/* Every time emac_regs[] above is changed, increase this version number. */ +#define EMAC_REGS_VERSION 0 + +#define EMAC_MAX_REG_SIZE ARRAY_SIZE(emac_regs) + +static void emac_get_regs(struct net_device *netdev, + struct ethtool_regs *regs, void *buff) +{ + struct emac_adapter *adpt = netdev_priv(netdev); + u32 *val = buff; + unsigned int i; + + regs->version = EMAC_REGS_VERSION; + regs->len = EMAC_MAX_REG_SIZE * sizeof(u32); + + for (i = 0; i < EMAC_MAX_REG_SIZE; i++) + val[i] = readl(adpt->base + emac_regs[i]); +} + +static int emac_get_regs_len(struct net_device *netdev) +{ + return EMAC_MAX_REG_SIZE * sizeof(32); +} + static const struct ethtool_ops emac_ethtool_ops = { .get_link_ksettings = phy_ethtool_get_link_ksettings, .set_link_ksettings = phy_ethtool_set_link_ksettings, @@ -189,6 +226,9 @@ static const struct ethtool_ops emac_ethtool_ops = { .nway_reset = emac_nway_reset, .get_link = ethtool_op_get_link, + + .get_regs_len = emac_get_regs_len, + .get_regs = emac_get_regs, }; void emac_set_ethtool_ops(struct net_device *netdev) |