diff options
Diffstat (limited to 'drivers/net/ethernet/marvell/octeontx2/af/cgx.c')
-rw-r--r-- | drivers/net/ethernet/marvell/octeontx2/af/cgx.c | 174 |
1 files changed, 121 insertions, 53 deletions
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/cgx.c b/drivers/net/ethernet/marvell/octeontx2/af/cgx.c index 9f5b7229574e..a4e65da8d95b 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/cgx.c +++ b/drivers/net/ethernet/marvell/octeontx2/af/cgx.c @@ -367,6 +367,107 @@ int cgx_lmac_tx_enable(void *cgxd, int lmac_id, bool enable) return !!(last & DATA_PKT_TX_EN); } +int cgx_lmac_get_pause_frm(void *cgxd, int lmac_id, + u8 *tx_pause, u8 *rx_pause) +{ + struct cgx *cgx = cgxd; + u64 cfg; + + if (!cgx || lmac_id >= cgx->lmac_count) + return -ENODEV; + + cfg = cgx_read(cgx, lmac_id, CGXX_SMUX_RX_FRM_CTL); + *rx_pause = !!(cfg & CGX_SMUX_RX_FRM_CTL_CTL_BCK); + + cfg = cgx_read(cgx, lmac_id, CGXX_SMUX_TX_CTL); + *tx_pause = !!(cfg & CGX_SMUX_TX_CTL_L2P_BP_CONV); + return 0; +} + +int cgx_lmac_set_pause_frm(void *cgxd, int lmac_id, + u8 tx_pause, u8 rx_pause) +{ + struct cgx *cgx = cgxd; + u64 cfg; + + if (!cgx || lmac_id >= cgx->lmac_count) + return -ENODEV; + + cfg = cgx_read(cgx, lmac_id, CGXX_SMUX_RX_FRM_CTL); + cfg &= ~CGX_SMUX_RX_FRM_CTL_CTL_BCK; + cfg |= rx_pause ? CGX_SMUX_RX_FRM_CTL_CTL_BCK : 0x0; + cgx_write(cgx, lmac_id, CGXX_SMUX_RX_FRM_CTL, cfg); + + cfg = cgx_read(cgx, lmac_id, CGXX_SMUX_TX_CTL); + cfg &= ~CGX_SMUX_TX_CTL_L2P_BP_CONV; + cfg |= tx_pause ? CGX_SMUX_TX_CTL_L2P_BP_CONV : 0x0; + cgx_write(cgx, lmac_id, CGXX_SMUX_TX_CTL, cfg); + + cfg = cgx_read(cgx, 0, CGXX_CMR_RX_OVR_BP); + if (tx_pause) { + cfg &= ~CGX_CMR_RX_OVR_BP_EN(lmac_id); + } else { + 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); + return 0; +} + +static void cgx_lmac_pause_frm_config(struct cgx *cgx, int lmac_id, bool enable) +{ + u64 cfg; + + if (!cgx || lmac_id >= cgx->lmac_count) + return; + if (enable) { + /* Enable receive pause frames */ + cfg = cgx_read(cgx, lmac_id, CGXX_SMUX_RX_FRM_CTL); + cfg |= CGX_SMUX_RX_FRM_CTL_CTL_BCK; + cgx_write(cgx, lmac_id, CGXX_SMUX_RX_FRM_CTL, cfg); + + cfg = cgx_read(cgx, lmac_id, CGXX_GMP_GMI_RXX_FRM_CTL); + cfg |= CGX_GMP_GMI_RXX_FRM_CTL_CTL_BCK; + cgx_write(cgx, lmac_id, CGXX_GMP_GMI_RXX_FRM_CTL, cfg); + + /* Enable pause frames transmission */ + cfg = cgx_read(cgx, lmac_id, CGXX_SMUX_TX_CTL); + cfg |= CGX_SMUX_TX_CTL_L2P_BP_CONV; + cgx_write(cgx, lmac_id, CGXX_SMUX_TX_CTL, cfg); + + /* Set pause time and interval */ + cgx_write(cgx, lmac_id, CGXX_SMUX_TX_PAUSE_PKT_TIME, + DEFAULT_PAUSE_TIME); + cfg = cgx_read(cgx, lmac_id, CGXX_SMUX_TX_PAUSE_PKT_INTERVAL); + cfg &= ~0xFFFFULL; + cgx_write(cgx, lmac_id, CGXX_SMUX_TX_PAUSE_PKT_INTERVAL, + cfg | (DEFAULT_PAUSE_TIME / 2)); + + cgx_write(cgx, lmac_id, CGXX_GMP_GMI_TX_PAUSE_PKT_TIME, + DEFAULT_PAUSE_TIME); + + cfg = cgx_read(cgx, lmac_id, + CGXX_GMP_GMI_TX_PAUSE_PKT_INTERVAL); + cfg &= ~0xFFFFULL; + cgx_write(cgx, lmac_id, CGXX_GMP_GMI_TX_PAUSE_PKT_INTERVAL, + cfg | (DEFAULT_PAUSE_TIME / 2)); + } else { + /* ALL pause frames received are completely ignored */ + cfg = cgx_read(cgx, lmac_id, CGXX_SMUX_RX_FRM_CTL); + cfg &= ~CGX_SMUX_RX_FRM_CTL_CTL_BCK; + cgx_write(cgx, lmac_id, CGXX_SMUX_RX_FRM_CTL, cfg); + + cfg = cgx_read(cgx, lmac_id, CGXX_GMP_GMI_RXX_FRM_CTL); + cfg &= ~CGX_GMP_GMI_RXX_FRM_CTL_CTL_BCK; + cgx_write(cgx, lmac_id, CGXX_GMP_GMI_RXX_FRM_CTL, cfg); + + /* Disable pause frames transmission */ + cfg = cgx_read(cgx, lmac_id, CGXX_SMUX_TX_CTL); + cfg &= ~CGX_SMUX_TX_CTL_L2P_BP_CONV; + cgx_write(cgx, lmac_id, CGXX_SMUX_TX_CTL, cfg); + } +} + /* CGX Firmware interface low level support */ static int cgx_fwi_cmd_send(u64 req, u64 *resp, struct lmac *lmac) { @@ -544,59 +645,6 @@ static inline bool cgx_event_is_linkevent(u64 event) return false; } -static inline int cgx_fwi_get_mkex_prfl_sz(u64 *prfl_sz, - struct cgx *cgx) -{ - u64 req = 0; - u64 resp; - int err; - - req = FIELD_SET(CMDREG_ID, CGX_CMD_GET_MKEX_PRFL_SIZE, req); - err = cgx_fwi_cmd_generic(req, &resp, cgx, 0); - if (!err) - *prfl_sz = FIELD_GET(RESP_MKEX_PRFL_SIZE, resp); - - return err; -} - -static inline int cgx_fwi_get_mkex_prfl_addr(u64 *prfl_addr, - struct cgx *cgx) -{ - u64 req = 0; - u64 resp; - int err; - - req = FIELD_SET(CMDREG_ID, CGX_CMD_GET_MKEX_PRFL_ADDR, req); - err = cgx_fwi_cmd_generic(req, &resp, cgx, 0); - if (!err) - *prfl_addr = FIELD_GET(RESP_MKEX_PRFL_ADDR, resp); - - return err; -} - -int cgx_get_mkex_prfl_info(u64 *addr, u64 *size) -{ - struct cgx *cgx_dev; - int err; - - if (!addr || !size) - return -EINVAL; - - cgx_dev = list_first_entry(&cgx_list, struct cgx, cgx_list); - if (!cgx_dev) - return -ENXIO; - - err = cgx_fwi_get_mkex_prfl_sz(size, cgx_dev); - if (err) - return -EIO; - - err = cgx_fwi_get_mkex_prfl_addr(addr, cgx_dev); - if (err) - return -EIO; - - return 0; -} - static irqreturn_t cgx_fwi_event_handler(int irq, void *data) { struct lmac *lmac = data; @@ -680,6 +728,24 @@ int cgx_lmac_evh_unregister(void *cgxd, int lmac_id) return 0; } +int cgx_get_fwdata_base(u64 *base) +{ + u64 req = 0, resp; + struct cgx *cgx; + int err; + + cgx = list_first_entry_or_null(&cgx_list, struct cgx, cgx_list); + if (!cgx) + return -ENXIO; + + req = FIELD_SET(CMDREG_ID, CGX_CMD_GET_FWD_BASE, req); + err = cgx_fwi_cmd_generic(req, &resp, cgx, 0); + if (!err) + *base = FIELD_GET(RESP_FWD_BASE, resp); + + return err; +} + static int cgx_fwi_link_change(struct cgx *cgx, int lmac_id, bool enable) { u64 req = 0; @@ -787,6 +853,7 @@ static int cgx_lmac_init(struct cgx *cgx) /* Add reference */ cgx->lmac_idmap[i] = lmac; + cgx_lmac_pause_frm_config(cgx, i, true); } return cgx_lmac_verify_fwi_version(cgx); @@ -805,6 +872,7 @@ static int cgx_lmac_exit(struct cgx *cgx) /* Free all lmac related resources */ for (i = 0; i < cgx->lmac_count; i++) { + cgx_lmac_pause_frm_config(cgx, i, false); lmac = cgx->lmac_idmap[i]; if (!lmac) continue; |