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net/igc: support MAC loopback mode

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Enable mac-loopback mode.

Signed-off-by: Alvin Zhang <alvinx.zhang@intel.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
This commit is contained in:
Alvin Zhang 2020-04-15 16:48:09 +08:00 committed by Ferruh Yigit
parent 5f266d0d8c
commit 8938c4e1ee
2 changed files with 26 additions and 0 deletions
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23
drivers/net/igc/igc_ethdev.c
View File

@ -50,10 +50,17 @@
/* External VLAN Enable bit mask */
#define IGC_CTRL_EXT_EXT_VLAN (1u << 26)
/* Speed select */
#define IGC_CTRL_SPEED_MASK (7u << 8)
#define IGC_CTRL_SPEED_2500 (6u << 8)
/* External VLAN Ether Type bit mask and shift */
#define IGC_VET_EXT 0xFFFF0000
#define IGC_VET_EXT_SHIFT 16
/* Force EEE Auto-negotiation */
#define IGC_EEER_EEE_FRC_AN (1u << 28)
/* Per Queue Good Packets Received Count */
#define IGC_PQGPRC(idx) (0x10010 + 0x100 * (idx))
/* Per Queue Good Octets Received Count */
@ -635,6 +642,9 @@ eth_igc_stop(struct rte_eth_dev *dev)
/* disable all wake up */
IGC_WRITE_REG(hw, IGC_WUC, 0);
/* disable checking EEE operation in MAC loopback mode */
igc_read_reg_check_clear_bits(hw, IGC_EEER, IGC_EEER_EEE_FRC_AN);
/* Set bit for Go Link disconnect */
igc_read_reg_check_set_bits(hw, IGC_82580_PHY_POWER_MGMT,
IGC_82580_PM_GO_LINKD);
@ -1060,6 +1070,19 @@ eth_igc_start(struct rte_eth_dev *dev)
eth_igc_rxtx_control(dev, true);
eth_igc_link_update(dev, 0);
/* configure MAC-loopback mode */
if (dev->data->dev_conf.lpbk_mode == 1) {
uint32_t reg_val;
reg_val = IGC_READ_REG(hw, IGC_CTRL);
reg_val &= ~IGC_CTRL_SPEED_MASK;
reg_val |= IGC_CTRL_SLU | IGC_CTRL_FRCSPD |
IGC_CTRL_FRCDPX | IGC_CTRL_FD | IGC_CTRL_SPEED_2500;
IGC_WRITE_REG(hw, IGC_CTRL, reg_val);
igc_read_reg_check_set_bits(hw, IGC_EEER, IGC_EEER_EEE_FRC_AN);
}
return 0;
error_invalid_config:

3
drivers/net/igc/igc_txrx.c
View File

@ -1142,6 +1142,9 @@ igc_rx_init(struct rte_eth_dev *dev)
IGC_RCTL_DPF |
(hw->mac.mc_filter_type << IGC_RCTL_MO_SHIFT);
if (dev->data->dev_conf.lpbk_mode == 1)
rctl |= IGC_RCTL_LBM_MAC;
rctl &= ~(IGC_RCTL_HSEL_MSK | IGC_RCTL_CFIEN | IGC_RCTL_CFI |
IGC_RCTL_PSP | IGC_RCTL_PMCF);