diff options
Diffstat (limited to 'drivers/net/ethernet/marvell/octeontx2/af/rpm.c')
| -rw-r--r-- | drivers/net/ethernet/marvell/octeontx2/af/rpm.c | 224 |
1 files changed, 173 insertions, 51 deletions
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rpm.c b/drivers/net/ethernet/marvell/octeontx2/af/rpm.c index 9ea2f6ac38ec..47e83d7a5804 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/rpm.c +++ b/drivers/net/ethernet/marvell/octeontx2/af/rpm.c @@ -32,6 +32,8 @@ static struct mac_ops rpm_mac_ops = { .mac_enadis_ptp_config = rpm_lmac_ptp_config, .mac_rx_tx_enable = rpm_lmac_rx_tx_enable, .mac_tx_enable = rpm_lmac_tx_enable, + .pfc_config = rpm_lmac_pfc_config, + .mac_get_pfc_frm_cfg = rpm_lmac_get_pfc_frm_cfg, }; struct mac_ops *rpm_get_mac_ops(void) @@ -96,11 +98,20 @@ int rpm_lmac_rx_tx_enable(void *rpmd, int lmac_id, bool enable) void rpm_lmac_enadis_rx_pause_fwding(void *rpmd, int lmac_id, bool enable) { rpm_t *rpm = rpmd; + struct lmac *lmac; u64 cfg; if (!rpm) return; + lmac = lmac_pdata(lmac_id, rpm); + if (!lmac) + return; + + /* Pause frames are not enabled just return */ + if (!bitmap_weight(lmac->rx_fc_pfvf_bmap.bmap, lmac->rx_fc_pfvf_bmap.max)) + return; + if (enable) { cfg = rpm_read(rpm, lmac_id, RPMX_MTI_MAC100X_COMMAND_CONFIG); cfg &= ~RPMX_MTI_MAC100X_COMMAND_CONFIG_PAUSE_IGNORE; @@ -122,13 +133,94 @@ int rpm_lmac_get_pause_frm_status(void *rpmd, int lmac_id, return -ENODEV; cfg = rpm_read(rpm, lmac_id, RPMX_MTI_MAC100X_COMMAND_CONFIG); - *rx_pause = !(cfg & RPMX_MTI_MAC100X_COMMAND_CONFIG_RX_P_DISABLE); + if (!(cfg & RPMX_MTI_MAC100X_COMMAND_CONFIG_PFC_MODE)) { + *rx_pause = !(cfg & RPMX_MTI_MAC100X_COMMAND_CONFIG_RX_P_DISABLE); + *tx_pause = !(cfg & RPMX_MTI_MAC100X_COMMAND_CONFIG_TX_P_DISABLE); + } - cfg = rpm_read(rpm, lmac_id, RPMX_MTI_MAC100X_COMMAND_CONFIG); - *tx_pause = !(cfg & RPMX_MTI_MAC100X_COMMAND_CONFIG_TX_P_DISABLE); return 0; } +static void rpm_cfg_pfc_quanta_thresh(rpm_t *rpm, int lmac_id, + unsigned long pfc_en, + bool enable) +{ + u64 quanta_offset = 0, quanta_thresh = 0, cfg; + int i, shift; + + /* Set pause time and interval */ + for_each_set_bit(i, &pfc_en, 16) { + switch (i) { + case 0: + case 1: + quanta_offset = RPMX_MTI_MAC100X_CL01_PAUSE_QUANTA; + quanta_thresh = RPMX_MTI_MAC100X_CL01_QUANTA_THRESH; + break; + case 2: + case 3: + quanta_offset = RPMX_MTI_MAC100X_CL23_PAUSE_QUANTA; + quanta_thresh = RPMX_MTI_MAC100X_CL23_QUANTA_THRESH; + break; + case 4: + case 5: + quanta_offset = RPMX_MTI_MAC100X_CL45_PAUSE_QUANTA; + quanta_thresh = RPMX_MTI_MAC100X_CL45_QUANTA_THRESH; + break; + case 6: + case 7: + quanta_offset = RPMX_MTI_MAC100X_CL67_PAUSE_QUANTA; + quanta_thresh = RPMX_MTI_MAC100X_CL67_QUANTA_THRESH; + break; + case 8: + case 9: + quanta_offset = RPMX_MTI_MAC100X_CL89_PAUSE_QUANTA; + quanta_thresh = RPMX_MTI_MAC100X_CL89_QUANTA_THRESH; + break; + case 10: + case 11: + quanta_offset = RPMX_MTI_MAC100X_CL1011_PAUSE_QUANTA; + quanta_thresh = RPMX_MTI_MAC100X_CL1011_QUANTA_THRESH; + break; + case 12: + case 13: + quanta_offset = RPMX_MTI_MAC100X_CL1213_PAUSE_QUANTA; + quanta_thresh = RPMX_MTI_MAC100X_CL1213_QUANTA_THRESH; + break; + case 14: + case 15: + quanta_offset = RPMX_MTI_MAC100X_CL1415_PAUSE_QUANTA; + quanta_thresh = RPMX_MTI_MAC100X_CL1415_QUANTA_THRESH; + break; + } + + if (!quanta_offset || !quanta_thresh) + continue; + + shift = (i % 2) ? 1 : 0; + cfg = rpm_read(rpm, lmac_id, quanta_offset); + if (enable) { + cfg |= ((u64)RPM_DEFAULT_PAUSE_TIME << shift * 16); + } else { + if (!shift) + cfg &= ~GENMASK_ULL(15, 0); + else + cfg &= ~GENMASK_ULL(31, 16); + } + rpm_write(rpm, lmac_id, quanta_offset, cfg); + + cfg = rpm_read(rpm, lmac_id, quanta_thresh); + if (enable) { + cfg |= ((u64)(RPM_DEFAULT_PAUSE_TIME / 2) << shift * 16); + } else { + if (!shift) + cfg &= ~GENMASK_ULL(15, 0); + else + cfg &= ~GENMASK_ULL(31, 16); + } + rpm_write(rpm, lmac_id, quanta_thresh, cfg); + } +} + int rpm_lmac_enadis_pause_frm(void *rpmd, int lmac_id, u8 tx_pause, u8 rx_pause) { @@ -152,8 +244,12 @@ int rpm_lmac_enadis_pause_frm(void *rpmd, int lmac_id, u8 tx_pause, cfg = rpm_read(rpm, 0, RPMX_CMR_RX_OVR_BP); if (tx_pause) { + /* Configure CL0 Pause Quanta & threshold for 802.3X frames */ + rpm_cfg_pfc_quanta_thresh(rpm, lmac_id, 1, true); cfg &= ~RPMX_CMR_RX_OVR_BP_EN(lmac_id); } else { + /* Disable all Pause Quanta & threshold values */ + rpm_cfg_pfc_quanta_thresh(rpm, lmac_id, 0xffff, false); cfg |= RPMX_CMR_RX_OVR_BP_EN(lmac_id); cfg &= ~RPMX_CMR_RX_OVR_BP_BP(lmac_id); } @@ -166,56 +262,20 @@ void rpm_lmac_pause_frm_config(void *rpmd, int lmac_id, bool enable) rpm_t *rpm = rpmd; u64 cfg; - if (enable) { - /* Enable 802.3 pause frame mode */ - cfg = rpm_read(rpm, lmac_id, RPMX_MTI_MAC100X_COMMAND_CONFIG); - cfg &= ~RPMX_MTI_MAC100X_COMMAND_CONFIG_PFC_MODE; - rpm_write(rpm, lmac_id, RPMX_MTI_MAC100X_COMMAND_CONFIG, cfg); - - /* Enable receive pause frames */ - cfg = rpm_read(rpm, lmac_id, RPMX_MTI_MAC100X_COMMAND_CONFIG); - cfg &= ~RPMX_MTI_MAC100X_COMMAND_CONFIG_RX_P_DISABLE; - rpm_write(rpm, lmac_id, RPMX_MTI_MAC100X_COMMAND_CONFIG, cfg); - - /* Enable forward pause to TX block */ - cfg = rpm_read(rpm, lmac_id, RPMX_MTI_MAC100X_COMMAND_CONFIG); - cfg &= ~RPMX_MTI_MAC100X_COMMAND_CONFIG_PAUSE_IGNORE; - rpm_write(rpm, lmac_id, RPMX_MTI_MAC100X_COMMAND_CONFIG, cfg); - - /* Enable pause frames transmission */ - cfg = rpm_read(rpm, lmac_id, RPMX_MTI_MAC100X_COMMAND_CONFIG); - cfg &= ~RPMX_MTI_MAC100X_COMMAND_CONFIG_TX_P_DISABLE; - rpm_write(rpm, lmac_id, RPMX_MTI_MAC100X_COMMAND_CONFIG, cfg); - - /* Set pause time and interval */ - cfg = rpm_read(rpm, lmac_id, - RPMX_MTI_MAC100X_CL01_PAUSE_QUANTA); - cfg &= ~0xFFFFULL; - rpm_write(rpm, lmac_id, RPMX_MTI_MAC100X_CL01_PAUSE_QUANTA, - cfg | RPM_DEFAULT_PAUSE_TIME); - /* Set pause interval as the hardware default is too short */ - cfg = rpm_read(rpm, lmac_id, - RPMX_MTI_MAC100X_CL01_QUANTA_THRESH); - cfg &= ~0xFFFFULL; - rpm_write(rpm, lmac_id, RPMX_MTI_MAC100X_CL01_QUANTA_THRESH, - cfg | (RPM_DEFAULT_PAUSE_TIME / 2)); - - } else { - /* ALL pause frames received are completely ignored */ - cfg = rpm_read(rpm, lmac_id, RPMX_MTI_MAC100X_COMMAND_CONFIG); - cfg |= RPMX_MTI_MAC100X_COMMAND_CONFIG_RX_P_DISABLE; - rpm_write(rpm, lmac_id, RPMX_MTI_MAC100X_COMMAND_CONFIG, cfg); + /* ALL pause frames received are completely ignored */ + cfg = rpm_read(rpm, lmac_id, RPMX_MTI_MAC100X_COMMAND_CONFIG); + cfg |= RPMX_MTI_MAC100X_COMMAND_CONFIG_RX_P_DISABLE; + rpm_write(rpm, lmac_id, RPMX_MTI_MAC100X_COMMAND_CONFIG, cfg); - /* Disable forward pause to TX block */ - cfg = rpm_read(rpm, lmac_id, RPMX_MTI_MAC100X_COMMAND_CONFIG); - cfg |= RPMX_MTI_MAC100X_COMMAND_CONFIG_PAUSE_IGNORE; - rpm_write(rpm, lmac_id, RPMX_MTI_MAC100X_COMMAND_CONFIG, cfg); + /* Disable forward pause to TX block */ + cfg = rpm_read(rpm, lmac_id, RPMX_MTI_MAC100X_COMMAND_CONFIG); + cfg |= RPMX_MTI_MAC100X_COMMAND_CONFIG_PAUSE_IGNORE; + rpm_write(rpm, lmac_id, RPMX_MTI_MAC100X_COMMAND_CONFIG, cfg); - /* Disable pause frames transmission */ - cfg = rpm_read(rpm, lmac_id, RPMX_MTI_MAC100X_COMMAND_CONFIG); - cfg |= RPMX_MTI_MAC100X_COMMAND_CONFIG_TX_P_DISABLE; - rpm_write(rpm, lmac_id, RPMX_MTI_MAC100X_COMMAND_CONFIG, cfg); - } + /* Disable pause frames transmission */ + cfg = rpm_read(rpm, lmac_id, RPMX_MTI_MAC100X_COMMAND_CONFIG); + cfg |= RPMX_MTI_MAC100X_COMMAND_CONFIG_TX_P_DISABLE; + rpm_write(rpm, lmac_id, RPMX_MTI_MAC100X_COMMAND_CONFIG, cfg); } int rpm_get_rx_stats(void *rpmd, int lmac_id, int idx, u64 *rx_stat) @@ -323,3 +383,65 @@ void rpm_lmac_ptp_config(void *rpmd, int lmac_id, bool enable) cfg &= ~RPMX_RX_TS_PREPEND; rpm_write(rpm, lmac_id, RPMX_CMRX_CFG, cfg); } + +int rpm_lmac_pfc_config(void *rpmd, int lmac_id, u8 tx_pause, u8 rx_pause, u16 pfc_en) +{ + rpm_t *rpm = rpmd; + u64 cfg; + + if (!is_lmac_valid(rpm, lmac_id)) + return -ENODEV; + + /* reset PFC class quanta and threshold */ + rpm_cfg_pfc_quanta_thresh(rpm, lmac_id, 0xffff, false); + + cfg = rpm_read(rpm, lmac_id, RPMX_MTI_MAC100X_COMMAND_CONFIG); + + if (rx_pause) { + cfg &= ~(RPMX_MTI_MAC100X_COMMAND_CONFIG_RX_P_DISABLE | + RPMX_MTI_MAC100X_COMMAND_CONFIG_PAUSE_IGNORE | + RPMX_MTI_MAC100X_COMMAND_CONFIG_PAUSE_FWD); + } else { + cfg |= (RPMX_MTI_MAC100X_COMMAND_CONFIG_RX_P_DISABLE | + RPMX_MTI_MAC100X_COMMAND_CONFIG_PAUSE_IGNORE | + RPMX_MTI_MAC100X_COMMAND_CONFIG_PAUSE_FWD); + } + + if (tx_pause) { + rpm_cfg_pfc_quanta_thresh(rpm, lmac_id, pfc_en, true); + cfg &= ~RPMX_MTI_MAC100X_COMMAND_CONFIG_TX_P_DISABLE; + } else { + rpm_cfg_pfc_quanta_thresh(rpm, lmac_id, 0xfff, false); + cfg |= RPMX_MTI_MAC100X_COMMAND_CONFIG_TX_P_DISABLE; + } + + if (!rx_pause && !tx_pause) + cfg &= ~RPMX_MTI_MAC100X_COMMAND_CONFIG_PFC_MODE; + else + cfg |= RPMX_MTI_MAC100X_COMMAND_CONFIG_PFC_MODE; + + rpm_write(rpm, lmac_id, RPMX_MTI_MAC100X_COMMAND_CONFIG, cfg); + + cfg = rpm_read(rpm, lmac_id, RPMX_CMRX_PRT_CBFC_CTL); + cfg = FIELD_SET(RPM_PFC_CLASS_MASK, pfc_en, cfg); + rpm_write(rpm, lmac_id, RPMX_CMRX_PRT_CBFC_CTL, cfg); + + return 0; +} + +int rpm_lmac_get_pfc_frm_cfg(void *rpmd, int lmac_id, u8 *tx_pause, u8 *rx_pause) +{ + rpm_t *rpm = rpmd; + u64 cfg; + + if (!is_lmac_valid(rpm, lmac_id)) + return -ENODEV; + + cfg = rpm_read(rpm, lmac_id, RPMX_MTI_MAC100X_COMMAND_CONFIG); + if (cfg & RPMX_MTI_MAC100X_COMMAND_CONFIG_PFC_MODE) { + *rx_pause = !(cfg & RPMX_MTI_MAC100X_COMMAND_CONFIG_RX_P_DISABLE); + *tx_pause = !(cfg & RPMX_MTI_MAC100X_COMMAND_CONFIG_TX_P_DISABLE); + } + + return 0; +} |