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author | Rob Herring <robh@kernel.org> | 2018-12-13 20:20:36 +0300 |
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committer | Rob Herring <robh@kernel.org> | 2018-12-13 20:20:36 +0300 |
commit | acc2038738bd6f881e7a277ba14fa7c589fd3058 (patch) | |
tree | fd56524867a9b726b3e5d2cb040ff16b2f2a67a0 /drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils_fw2x.c | |
parent | cd1cc0bef46fc8d8f9ebe82d2064d4f4bd5ecf16 (diff) | |
parent | 2c9b0b00af23cdc70d28d82e077dc1d280bcb84a (diff) | |
download | linux-acc2038738bd6f881e7a277ba14fa7c589fd3058.tar.xz |
Merge branch 'yaml-bindings-for-v4.21' into dt/next
Diffstat (limited to 'drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils_fw2x.c')
-rw-r--r-- | drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils_fw2x.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils_fw2x.c b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils_fw2x.c index 096ca5730887..7de3220d9cab 100644 --- a/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils_fw2x.c +++ b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils_fw2x.c @@ -30,6 +30,8 @@ #define HW_ATL_FW2X_MPI_STATE_ADDR 0x370 #define HW_ATL_FW2X_MPI_STATE2_ADDR 0x374 +#define HW_ATL_FW2X_CAP_PAUSE BIT(CAPS_HI_PAUSE) +#define HW_ATL_FW2X_CAP_ASYM_PAUSE BIT(CAPS_HI_ASYMMETRIC_PAUSE) #define HW_ATL_FW2X_CAP_SLEEP_PROXY BIT(CAPS_HI_SLEEP_PROXY) #define HW_ATL_FW2X_CAP_WOL BIT(CAPS_HI_WOL) @@ -451,6 +453,24 @@ static int aq_fw2x_set_flow_control(struct aq_hw_s *self) return 0; } +static u32 aq_fw2x_get_flow_control(struct aq_hw_s *self, u32 *fcmode) +{ + u32 mpi_state = aq_hw_read_reg(self, HW_ATL_FW2X_MPI_STATE2_ADDR); + + if (mpi_state & HW_ATL_FW2X_CAP_PAUSE) + if (mpi_state & HW_ATL_FW2X_CAP_ASYM_PAUSE) + *fcmode = AQ_NIC_FC_RX; + else + *fcmode = AQ_NIC_FC_RX | AQ_NIC_FC_TX; + else + if (mpi_state & HW_ATL_FW2X_CAP_ASYM_PAUSE) + *fcmode = AQ_NIC_FC_TX; + else + *fcmode = 0; + + return 0; +} + const struct aq_fw_ops aq_fw_2x_ops = { .init = aq_fw2x_init, .deinit = aq_fw2x_deinit, @@ -465,4 +485,5 @@ const struct aq_fw_ops aq_fw_2x_ops = { .set_eee_rate = aq_fw2x_set_eee_rate, .get_eee_rate = aq_fw2x_get_eee_rate, .set_flow_control = aq_fw2x_set_flow_control, + .get_flow_control = aq_fw2x_get_flow_control }; |