diff options
Diffstat (limited to 'drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp_eth.c')
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp_eth.c | 90 |
1 files changed, 89 insertions, 1 deletions
diff --git a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp_eth.c b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp_eth.c index 9d62085d772a..5cfddc9a5d87 100644 --- a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp_eth.c +++ b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp_eth.c @@ -42,6 +42,8 @@ #define NSP_ETH_STATE_ANEG GENMASK_ULL(25, 23) #define NSP_ETH_STATE_FEC GENMASK_ULL(27, 26) #define NSP_ETH_STATE_ACT_FEC GENMASK_ULL(29, 28) +#define NSP_ETH_STATE_TX_PAUSE BIT_ULL(31) +#define NSP_ETH_STATE_RX_PAUSE BIT_ULL(32) #define NSP_ETH_CTRL_CONFIGURED BIT_ULL(0) #define NSP_ETH_CTRL_ENABLED BIT_ULL(1) @@ -52,6 +54,8 @@ #define NSP_ETH_CTRL_SET_ANEG BIT_ULL(6) #define NSP_ETH_CTRL_SET_FEC BIT_ULL(7) #define NSP_ETH_CTRL_SET_IDMODE BIT_ULL(8) +#define NSP_ETH_CTRL_SET_TX_PAUSE BIT_ULL(10) +#define NSP_ETH_CTRL_SET_RX_PAUSE BIT_ULL(11) enum nfp_eth_raw { NSP_ETH_RAW_PORT = 0, @@ -180,6 +184,15 @@ nfp_eth_port_translate(struct nfp_nsp *nsp, const union eth_table_entry *src, dst->act_fec = FIELD_GET(NSP_ETH_STATE_ACT_FEC, state); dst->supp_aneg = FIELD_GET(NSP_ETH_PORT_SUPP_ANEG, port); + + if (nfp_nsp_get_abi_ver_minor(nsp) < 37) { + dst->tx_pause = true; + dst->rx_pause = true; + return; + } + + dst->tx_pause = FIELD_GET(NSP_ETH_STATE_TX_PAUSE, state); + dst->rx_pause = FIELD_GET(NSP_ETH_STATE_RX_PAUSE, state); } static void @@ -497,7 +510,7 @@ int nfp_eth_set_configured(struct nfp_cpp *cpp, unsigned int idx, bool configed) static int nfp_eth_set_bit_config(struct nfp_nsp *nsp, unsigned int raw_idx, const u64 mask, const unsigned int shift, - unsigned int val, const u64 ctrl_bit) + u64 val, const u64 ctrl_bit) { union eth_table_entry *entries = nfp_nsp_config_entries(nsp); unsigned int idx = nfp_nsp_config_idx(nsp); @@ -630,6 +643,81 @@ nfp_eth_set_fec(struct nfp_cpp *cpp, unsigned int idx, enum nfp_eth_fec mode) } /** + * __nfp_eth_set_txpause() - set tx pause control bit + * @nsp: NFP NSP handle returned from nfp_eth_config_start() + * @tx_pause: TX pause switch + * + * Set TX pause switch. + * + * Return: 0 or -ERRNO. + */ +static int __nfp_eth_set_txpause(struct nfp_nsp *nsp, unsigned int tx_pause) +{ + return NFP_ETH_SET_BIT_CONFIG(nsp, NSP_ETH_RAW_STATE, NSP_ETH_STATE_TX_PAUSE, + tx_pause, NSP_ETH_CTRL_SET_TX_PAUSE); +} + +/** + * __nfp_eth_set_rxpause() - set rx pause control bit + * @nsp: NFP NSP handle returned from nfp_eth_config_start() + * @rx_pause: RX pause switch + * + * Set RX pause switch. + * + * Return: 0 or -ERRNO. + */ +static int __nfp_eth_set_rxpause(struct nfp_nsp *nsp, unsigned int rx_pause) +{ + return NFP_ETH_SET_BIT_CONFIG(nsp, NSP_ETH_RAW_STATE, NSP_ETH_STATE_RX_PAUSE, + rx_pause, NSP_ETH_CTRL_SET_RX_PAUSE); +} + +/** + * nfp_eth_set_pauseparam() - Set TX/RX pause switch. + * @cpp: NFP CPP handle + * @idx: NFP chip-wide port index + * @tx_pause: TX pause switch + * @rx_pause: RX pause switch + * + * Return: + * 0 - configuration successful; + * 1 - no changes were needed; + * -ERRNO - configuration failed. + */ +int +nfp_eth_set_pauseparam(struct nfp_cpp *cpp, unsigned int idx, + unsigned int tx_pause, unsigned int rx_pause) +{ + struct nfp_nsp *nsp; + int err; + + nsp = nfp_eth_config_start(cpp, idx); + if (IS_ERR(nsp)) + return PTR_ERR(nsp); + + if (nfp_nsp_get_abi_ver_minor(nsp) < 37) { + nfp_err(nfp_nsp_cpp(nsp), + "set pause parameter operation not supported, please update flash\n"); + nfp_eth_config_cleanup_end(nsp); + return -EOPNOTSUPP; + } + + err = __nfp_eth_set_txpause(nsp, tx_pause); + if (err) { + nfp_eth_config_cleanup_end(nsp); + return err; + } + + err = __nfp_eth_set_rxpause(nsp, rx_pause); + if (err) { + nfp_eth_config_cleanup_end(nsp); + return err; + } + + return nfp_eth_config_commit_end(nsp); +} + +/** * __nfp_eth_set_speed() - set interface speed/rate * @nsp: NFP NSP handle returned from nfp_eth_config_start() * @speed: Desired speed (per lane) |