diff options
| author | Hariprasad Kelam <hkelam@marvell.com> | 2022-07-07 19:30:48 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2022-07-08 16:05:22 +0300 |
| commit | 8e1514579246ddc36ba0b860fc8bdd03be085aee (patch) | |
| tree | 32c95c6dfb74e8076f0dac2b1a6b66323bf2b0fc /drivers/net/ethernet/marvell/octeontx2/af/cgx.c | |
| parent | 9d899dbe23016856effc01eafec31c587a3c8791 (diff) | |
| download | linux-8e1514579246ddc36ba0b860fc8bdd03be085aee.tar.xz | |
octeontx2-af: Don't reset previous pfc config
Current implementation is such that driver first resets the
existing PFC config before applying new pfc configuration.
This creates a problem like once PF or VFs requests PFC config
previous pfc config by other PFVfs is getting reset.
This patch fixes the problem by removing unnecessary resetting
of PFC config. Also configure Pause quanta value to smaller as
current value is too high.
Signed-off-by: Hariprasad Kelam <hkelam@marvell.com>
Signed-off-by: Sunil Kovvuri Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/marvell/octeontx2/af/cgx.c')
| -rw-r--r-- | drivers/net/ethernet/marvell/octeontx2/af/cgx.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/cgx.c b/drivers/net/ethernet/marvell/octeontx2/af/cgx.c index 25491edc35ce..931a1a7ebf76 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/cgx.c +++ b/drivers/net/ethernet/marvell/octeontx2/af/cgx.c @@ -847,6 +847,11 @@ static void cgx_lmac_pause_frm_config(void *cgxd, int lmac_id, bool enable) cfg |= CGX_CMR_RX_OVR_BP_EN(lmac_id); cfg &= ~CGX_CMR_RX_OVR_BP_BP(lmac_id); cgx_write(cgx, 0, CGXX_CMR_RX_OVR_BP, cfg); + + /* Disable all PFC classes by default */ + cfg = cgx_read(cgx, lmac_id, CGXX_SMUX_CBFC_CTL); + cfg = FIELD_SET(CGX_PFC_CLASS_MASK, 0, cfg); + cgx_write(cgx, lmac_id, CGXX_SMUX_CBFC_CTL, cfg); } int verify_lmac_fc_cfg(void *cgxd, int lmac_id, u8 tx_pause, u8 rx_pause, @@ -899,6 +904,7 @@ int cgx_lmac_pfc_config(void *cgxd, int lmac_id, u8 tx_pause, return 0; cfg = cgx_read(cgx, lmac_id, CGXX_SMUX_CBFC_CTL); + pfc_en |= FIELD_GET(CGX_PFC_CLASS_MASK, cfg); if (rx_pause) { cfg |= (CGXX_SMUX_CBFC_CTL_RX_EN | @@ -910,12 +916,13 @@ int cgx_lmac_pfc_config(void *cgxd, int lmac_id, u8 tx_pause, CGXX_SMUX_CBFC_CTL_DRP_EN); } - if (tx_pause) + if (tx_pause) { cfg |= CGXX_SMUX_CBFC_CTL_TX_EN; - else + cfg = FIELD_SET(CGX_PFC_CLASS_MASK, pfc_en, cfg); + } else { cfg &= ~CGXX_SMUX_CBFC_CTL_TX_EN; - - cfg = FIELD_SET(CGX_PFC_CLASS_MASK, pfc_en, cfg); + cfg = FIELD_SET(CGX_PFC_CLASS_MASK, 0, cfg); + } cgx_write(cgx, lmac_id, CGXX_SMUX_CBFC_CTL, cfg); |