diff options
| author | Michael Sit Wei Hong <michael.wei.hong.sit@intel.com> | 2021-05-17 17:43:32 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-05-17 15:53:58 -0700 |
| commit | e80fe71b3ffe1ec31c4a9be60170f897bbdf1b92 (patch) | |
| tree | 3c680fdc647e8191167059fa1f6cb724333c0f12 /drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c | |
| parent | 7617af3d1a5e0938eb1fd2742f19bcea772c7f8d (diff) | |
net: stmmac: Add callbacks for DWC xpcs Energy Efficient Ethernet
Link xpcs callback functions for MAC to configure the xpcs EEE feature.
The clk_eee frequency is used to calculate the MULT_FACT_100NS. This is
to adjust the clock tic closer to 100ns.
Signed-off-by: Michael Sit Wei Hong <michael.wei.hong.sit@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c')
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c index 80728a4c0e3f..e36a8cc59ad0 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c @@ -429,6 +429,17 @@ static int intel_mgbe_common_data(struct pci_dev *pdev, plat->force_sf_dma_mode = 0; plat->tso_en = 1; + /* Multiplying factor to the clk_eee_i clock time + * period to make it closer to 100 ns. This value + * should be programmed such that the clk_eee_time_period * + * (MULT_FACT_100NS + 1) should be within 80 ns to 120 ns + * clk_eee frequency is 19.2Mhz + * clk_eee_time_period is 52ns + * 52ns * (1 + 1) = 104ns + * MULT_FACT_100NS = 1 + */ + plat->mult_fact_100ns = 1; + plat->rx_sched_algorithm = MTL_RX_ALGORITHM_SP; for (i = 0; i < plat->rx_queues_to_use; i++) { |