diff options
Diffstat (limited to 'drivers/net/ethernet/marvell/octeontx2/af/cgx.c')
| -rw-r--r-- | drivers/net/ethernet/marvell/octeontx2/af/cgx.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/cgx.c b/drivers/net/ethernet/marvell/octeontx2/af/cgx.c index fb7069c757f5..64e8211d14ba 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/cgx.c +++ b/drivers/net/ethernet/marvell/octeontx2/af/cgx.c @@ -817,6 +817,47 @@ static void cgx_lmac_pause_frm_config(void *cgxd, int lmac_id, bool enable) cgx_write(cgx, lmac_id, CGXX_SMUX_TX_CTL, cfg); } +int cgx_lmac_pfc_config(void *cgxd, int lmac_id, u8 tx_pause, + u8 rx_pause, u16 pfc_en) +{ + struct cgx *cgx = cgxd; + u64 cfg; + + if (!is_lmac_valid(cgx, lmac_id)) + return -ENODEV; + + /* Return as no traffic classes are requested */ + if (tx_pause && !pfc_en) + return 0; + + cfg = cgx_read(cgx, lmac_id, CGXX_SMUX_CBFC_CTL); + + if (rx_pause) { + cfg |= (CGXX_SMUX_CBFC_CTL_RX_EN | + CGXX_SMUX_CBFC_CTL_BCK_EN | + CGXX_SMUX_CBFC_CTL_DRP_EN); + } else { + cfg &= ~(CGXX_SMUX_CBFC_CTL_RX_EN | + CGXX_SMUX_CBFC_CTL_BCK_EN | + CGXX_SMUX_CBFC_CTL_DRP_EN); + } + + if (tx_pause) + cfg |= CGXX_SMUX_CBFC_CTL_TX_EN; + else + cfg &= ~CGXX_SMUX_CBFC_CTL_TX_EN; + + cfg = FIELD_SET(CGX_PFC_CLASS_MASK, pfc_en, cfg); + + cgx_write(cgx, lmac_id, CGXX_SMUX_CBFC_CTL, cfg); + + /* Write source MAC address which will be filled into PFC packet */ + cfg = cgx_lmac_addr_get(cgx->cgx_id, lmac_id); + cgx_write(cgx, lmac_id, CGXX_SMUX_SMAC, cfg); + + return 0; +} + void cgx_lmac_ptp_config(void *cgxd, int lmac_id, bool enable) { struct cgx *cgx = cgxd; @@ -1559,6 +1600,7 @@ static struct mac_ops cgx_mac_ops = { .mac_enadis_ptp_config = cgx_lmac_ptp_config, .mac_rx_tx_enable = cgx_lmac_rx_tx_enable, .mac_tx_enable = cgx_lmac_tx_enable, + .pfc_config = cgx_lmac_pfc_config, }; static int cgx_probe(struct pci_dev *pdev, const struct pci_device_id *id) |