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Commit 9a7b96b3 authored by Ganesh Goudar's avatar Ganesh Goudar Committed by David S. Miller
Browse files

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: default avatarGanesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 36bf994a

drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c

+58 −0
Original line number Diff line number Diff line
@@ -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,