diff options
| author | Iyappan Subramanian <isubramanian@apm.com> | 2016-12-02 01:41:43 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-12-03 21:46:50 +0100 |
| commit | 56090b12283d40b02879377ac8f734520ce6e6b2 (patch) | |
| tree | 789d78c4fbd3a1882819315f68b3607a222b5911 /drivers/net/ethernet/apm/xgene/xgene_enet_xgmac.c | |
| parent | drivers: net: xgene: Add flow control configuration (diff) | |
| download | linux-56090b12283d40b02879377ac8f734520ce6e6b2.tar.xz linux-56090b12283d40b02879377ac8f734520ce6e6b2.zip | |
drivers: net: xgene: Add flow control initialization
This patch adds flow control/pause frame initialization and
advertising capabilities.
Signed-off-by: Iyappan Subramanian <isubramanian@apm.com>
Signed-off-by: Quan Nguyen <qnguyen@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/apm/xgene/xgene_enet_xgmac.c')
| -rw-r--r-- | drivers/net/ethernet/apm/xgene/xgene_enet_xgmac.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_xgmac.c b/drivers/net/ethernet/apm/xgene/xgene_enet_xgmac.c index 727ef4b4da03..ece19e6d68e3 100644 --- a/drivers/net/ethernet/apm/xgene/xgene_enet_xgmac.c +++ b/drivers/net/ethernet/apm/xgene/xgene_enet_xgmac.c @@ -349,6 +349,23 @@ static void xgene_xgmac_init(struct xgene_enet_pdata *pdata) xgene_enet_wr_csr(pdata, XG_ENET_SPARE_CFG_REG_1_ADDR, 0x82); xgene_enet_wr_csr(pdata, XGENET_RX_DV_GATE_REG_0_ADDR, 0); xgene_enet_wr_csr(pdata, XG_CFG_BYPASS_ADDR, RESUME_TX); + + /* Configure HW pause frame generation */ + xgene_enet_rd_axg_csr(pdata, XGENET_CSR_MULTI_DPF0_ADDR, &data); + data = (DEF_QUANTA << 16) | (data & 0xFFFF); + xgene_enet_wr_axg_csr(pdata, XGENET_CSR_MULTI_DPF0_ADDR, data); + + if (pdata->enet_id != XGENE_ENET1) { + xgene_enet_rd_axg_csr(pdata, XGENET_CSR_MULTI_DPF1_ADDR, &data); + data = (NORM_PAUSE_OPCODE << 16) | (data & 0xFFFF); + xgene_enet_wr_axg_csr(pdata, XGENET_CSR_MULTI_DPF1_ADDR, data); + } + + data = (XG_DEF_PAUSE_OFF_THRES << 16) | XG_DEF_PAUSE_THRES; + xgene_enet_wr_csr(pdata, XG_RXBUF_PAUSE_THRESH, data); + + xgene_xgmac_flowctl_tx(pdata, pdata->tx_pause); + xgene_xgmac_flowctl_rx(pdata, pdata->rx_pause); } static void xgene_xgmac_rx_enable(struct xgene_enet_pdata *pdata) |