diff options
| author | Ganesh Goudar <ganeshgr@chelsio.com> | 2017-11-02 19:28:20 +0530 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-11-03 15:45:40 +0900 |
| commit | 9a7b96b3462679a2fcf7205d396dbf1f8f28454c (patch) | |
| tree | ecdb573bfa11c177df703e1ef30e0e92ba7317d4 /drivers/net/ethernet/chelsio | |
| parent | 36bf994a80571aeee2549db1bc93e34342f40c24 (diff) | |
| download | linux-9a7b96b3462679a2fcf7205d396dbf1f8f28454c.tar.bz2 | |
cxgb4vf: define get_fecparam ethtool callback
Add support to new ethtool operation get_fecparam to
fetch FEC parameters.
Original Work by: Casey Leedom <leedom@chelsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/chelsio')
| -rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c b/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c index 8996ebbd222e..b48361cfdc78 100644 --- a/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c +++ b/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c @@ -1401,6 +1401,63 @@ static int cxgb4vf_get_link_ksettings(struct net_device *dev, return 0; } +/* Translate the Firmware FEC value into the ethtool value. */ +static inline unsigned int fwcap_to_eth_fec(unsigned int fw_fec) +{ + unsigned int eth_fec = 0; + + if (fw_fec & FW_PORT_CAP32_FEC_RS) + eth_fec |= ETHTOOL_FEC_RS; + if (fw_fec & FW_PORT_CAP32_FEC_BASER_RS) + eth_fec |= ETHTOOL_FEC_BASER; + + /* if nothing is set, then FEC is off */ + if (!eth_fec) + eth_fec = ETHTOOL_FEC_OFF; + + return eth_fec; +} + +/* Translate Common Code FEC value into ethtool value. */ +static inline unsigned int cc_to_eth_fec(unsigned int cc_fec) +{ + unsigned int eth_fec = 0; + + if (cc_fec & FEC_AUTO) + eth_fec |= ETHTOOL_FEC_AUTO; + if (cc_fec & FEC_RS) + eth_fec |= ETHTOOL_FEC_RS; + if (cc_fec & FEC_BASER_RS) + eth_fec |= ETHTOOL_FEC_BASER; + + /* if nothing is set, then FEC is off */ + if (!eth_fec) + eth_fec = ETHTOOL_FEC_OFF; + + return eth_fec; +} + +static int cxgb4vf_get_fecparam(struct net_device *dev, + struct ethtool_fecparam *fec) +{ + const struct port_info *pi = netdev_priv(dev); + const struct link_config *lc = &pi->link_cfg; + + /* Translate the Firmware FEC Support into the ethtool value. We + * always support IEEE 802.3 "automatic" selection of Link FEC type if + * any FEC is supported. + */ + fec->fec = fwcap_to_eth_fec(lc->pcaps); + if (fec->fec != ETHTOOL_FEC_OFF) + fec->fec |= ETHTOOL_FEC_AUTO; + + /* Translate the current internal FEC parameters into the + * ethtool values. + */ + fec->active_fec = cc_to_eth_fec(lc->fec); + return 0; +} + /* * Return our driver information. */ @@ -1774,6 +1831,7 @@ static void cxgb4vf_get_wol(struct net_device *dev, static const struct ethtool_ops cxgb4vf_ethtool_ops = { .get_link_ksettings = cxgb4vf_get_link_ksettings, + .get_fecparam = cxgb4vf_get_fecparam, .get_drvinfo = cxgb4vf_get_drvinfo, .get_msglevel = cxgb4vf_get_msglevel, .set_msglevel = cxgb4vf_set_msglevel, |