ixgbe: Add DCB for 82599, remove BCN support

This patch adds the DCB (Data Center Bridging) support for 82599 hardware.
This is similar to how the 82598 DCB code works.

This patch also removes the BCN (Backwards Congestion Notification) netlink
configuration code from the driver.  BCN was a pre-standard congestion
notification framework, and was not what the IEEE body decided upon for
standard congestion management. QCN (802.1Qau), Quantized Congestion
Notification is the accepted standard, which is not supported by 82599,
hence we remove the support altogether.

Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 192 deletions

diff --git a/drivers/net/ixgbe/ixgbe_dcb_nl.c b/drivers/net/ixgbe/ixgbe_dcb_nl.c
index dd9d1d63a59..087cf886f2a 100644
--- a/drivers/net/ixgbe/ixgbe_dcb_nl.c
+++ b/drivers/net/ixgbe/ixgbe_dcb_nl.c
@@ -35,6 +35,7 @@
 #define BIT_PG_RX	0x04
 #define BIT_PG_TX	0x08
 #define BIT_BCN         0x10
+#define BIT_LINKSPEED   0x80
 
 int ixgbe_copy_dcb_cfg(struct ixgbe_dcb_config *src_dcb_cfg,
                        struct ixgbe_dcb_config *dst_dcb_cfg, int tc_max)
@@ -89,25 +90,6 @@ int ixgbe_copy_dcb_cfg(struct ixgbe_dcb_config *src_dcb_cfg,
 			src_dcb_cfg->tc_config[i - DCB_PFC_UP_ATTR_0].dcb_pfc;
 	}
 
-	for (i = DCB_BCN_ATTR_RP_0; i < DCB_BCN_ATTR_RP_ALL; i++) {
-		dst_dcb_cfg->bcn.rp_admin_mode[i - DCB_BCN_ATTR_RP_0] =
-			src_dcb_cfg->bcn.rp_admin_mode[i - DCB_BCN_ATTR_RP_0];
-	}
-	dst_dcb_cfg->bcn.bcna_option[0] = src_dcb_cfg->bcn.bcna_option[0];
-	dst_dcb_cfg->bcn.bcna_option[1] = src_dcb_cfg->bcn.bcna_option[1];
-	dst_dcb_cfg->bcn.rp_alpha = src_dcb_cfg->bcn.rp_alpha;
-	dst_dcb_cfg->bcn.rp_beta = src_dcb_cfg->bcn.rp_beta;
-	dst_dcb_cfg->bcn.rp_gd = src_dcb_cfg->bcn.rp_gd;
-	dst_dcb_cfg->bcn.rp_gi = src_dcb_cfg->bcn.rp_gi;
-	dst_dcb_cfg->bcn.rp_tmax = src_dcb_cfg->bcn.rp_tmax;
-	dst_dcb_cfg->bcn.rp_td = src_dcb_cfg->bcn.rp_td;
-	dst_dcb_cfg->bcn.rp_rmin = src_dcb_cfg->bcn.rp_rmin;
-	dst_dcb_cfg->bcn.rp_w = src_dcb_cfg->bcn.rp_w;
-	dst_dcb_cfg->bcn.rp_rd = src_dcb_cfg->bcn.rp_rd;
-	dst_dcb_cfg->bcn.rp_ru = src_dcb_cfg->bcn.rp_ru;
-	dst_dcb_cfg->bcn.rp_wrtt = src_dcb_cfg->bcn.rp_wrtt;
-	dst_dcb_cfg->bcn.rp_ri = src_dcb_cfg->bcn.rp_ri;
-
 	return 0;
 }
 
@@ -444,175 +426,6 @@ static void ixgbe_dcbnl_setpfcstate(struct net_device *netdev, u8 state)
 	return;
 }
 
-static void ixgbe_dcbnl_getbcnrp(struct net_device *netdev, int priority,
-				  u8 *setting)
-{
-	struct ixgbe_adapter *adapter = netdev_priv(netdev);
-
-	*setting = adapter->dcb_cfg.bcn.rp_admin_mode[priority];
-}
-
-
-static void ixgbe_dcbnl_getbcncfg(struct net_device *netdev, int enum_index,
-				  u32 *setting)
-{
-	struct ixgbe_adapter *adapter = netdev_priv(netdev);
-
-	switch (enum_index) {
-	case DCB_BCN_ATTR_BCNA_0:
-		*setting = adapter->dcb_cfg.bcn.bcna_option[0];
-		break;
-	case DCB_BCN_ATTR_BCNA_1:
-		*setting = adapter->dcb_cfg.bcn.bcna_option[1];
-		break;
-	case DCB_BCN_ATTR_ALPHA:
-		*setting = adapter->dcb_cfg.bcn.rp_alpha;
-		break;
-	case DCB_BCN_ATTR_BETA:
-		*setting = adapter->dcb_cfg.bcn.rp_beta;
-		break;
-	case DCB_BCN_ATTR_GD:
-		*setting = adapter->dcb_cfg.bcn.rp_gd;
-		break;
-	case DCB_BCN_ATTR_GI:
-		*setting = adapter->dcb_cfg.bcn.rp_gi;
-		break;
-	case DCB_BCN_ATTR_TMAX:
-		*setting = adapter->dcb_cfg.bcn.rp_tmax;
-		break;
-	case DCB_BCN_ATTR_TD:
-		*setting = adapter->dcb_cfg.bcn.rp_td;
-		break;
-	case DCB_BCN_ATTR_RMIN:
-		*setting = adapter->dcb_cfg.bcn.rp_rmin;
-		break;
-	case DCB_BCN_ATTR_W:
-		*setting = adapter->dcb_cfg.bcn.rp_w;
-		break;
-	case DCB_BCN_ATTR_RD:
-		*setting = adapter->dcb_cfg.bcn.rp_rd;
-		break;
-	case DCB_BCN_ATTR_RU:
-		*setting = adapter->dcb_cfg.bcn.rp_ru;
-		break;
-	case DCB_BCN_ATTR_WRTT:
-		*setting = adapter->dcb_cfg.bcn.rp_wrtt;
-		break;
-	case DCB_BCN_ATTR_RI:
-		*setting = adapter->dcb_cfg.bcn.rp_ri;
-		break;
-	default:
-		*setting = -1;
-	}
-}
-
-static void ixgbe_dcbnl_setbcnrp(struct net_device *netdev, int priority,
-				 u8 setting)
-{
-	struct ixgbe_adapter *adapter = netdev_priv(netdev);
-
-	adapter->temp_dcb_cfg.bcn.rp_admin_mode[priority] = setting;
-
-	if (adapter->temp_dcb_cfg.bcn.rp_admin_mode[priority] !=
-	    adapter->dcb_cfg.bcn.rp_admin_mode[priority])
-		adapter->dcb_set_bitmap |= BIT_BCN;
-}
-
-static void ixgbe_dcbnl_setbcncfg(struct net_device *netdev, int enum_index,
-				 u32 setting)
-{
-	struct ixgbe_adapter *adapter = netdev_priv(netdev);
-
-	switch (enum_index) {
-	case DCB_BCN_ATTR_BCNA_0:
-		adapter->temp_dcb_cfg.bcn.bcna_option[0] = setting;
-		if (adapter->temp_dcb_cfg.bcn.bcna_option[0] !=
-			adapter->dcb_cfg.bcn.bcna_option[0])
-			adapter->dcb_set_bitmap |= BIT_BCN;
-		break;
-	case DCB_BCN_ATTR_BCNA_1:
-		adapter->temp_dcb_cfg.bcn.bcna_option[1] = setting;
-		if (adapter->temp_dcb_cfg.bcn.bcna_option[1] !=
-			adapter->dcb_cfg.bcn.bcna_option[1])
-			adapter->dcb_set_bitmap |= BIT_BCN;
-		break;
-	case DCB_BCN_ATTR_ALPHA:
-		adapter->temp_dcb_cfg.bcn.rp_alpha = setting;
-		if (adapter->temp_dcb_cfg.bcn.rp_alpha !=
-		    adapter->dcb_cfg.bcn.rp_alpha)
-			adapter->dcb_set_bitmap |= BIT_BCN;
-		break;
-	case DCB_BCN_ATTR_BETA:
-		adapter->temp_dcb_cfg.bcn.rp_beta = setting;
-		if (adapter->temp_dcb_cfg.bcn.rp_beta !=
-		    adapter->dcb_cfg.bcn.rp_beta)
-			adapter->dcb_set_bitmap |= BIT_BCN;
-		break;
-	case DCB_BCN_ATTR_GD:
-		adapter->temp_dcb_cfg.bcn.rp_gd = setting;
-		if (adapter->temp_dcb_cfg.bcn.rp_gd !=
-		    adapter->dcb_cfg.bcn.rp_gd)
-			adapter->dcb_set_bitmap |= BIT_BCN;
-		break;
-	case DCB_BCN_ATTR_GI:
-		adapter->temp_dcb_cfg.bcn.rp_gi = setting;
-		if (adapter->temp_dcb_cfg.bcn.rp_gi !=
-		    adapter->dcb_cfg.bcn.rp_gi)
-			adapter->dcb_set_bitmap |= BIT_BCN;
-		break;
-	case DCB_BCN_ATTR_TMAX:
-		adapter->temp_dcb_cfg.bcn.rp_tmax = setting;
-		if (adapter->temp_dcb_cfg.bcn.rp_tmax !=
-		    adapter->dcb_cfg.bcn.rp_tmax)
-			adapter->dcb_set_bitmap |= BIT_BCN;
-		break;
-	case DCB_BCN_ATTR_TD:
-		adapter->temp_dcb_cfg.bcn.rp_td = setting;
-		if (adapter->temp_dcb_cfg.bcn.rp_td !=
-		    adapter->dcb_cfg.bcn.rp_td)
-			adapter->dcb_set_bitmap |= BIT_BCN;
-		break;
-	case DCB_BCN_ATTR_RMIN:
-		adapter->temp_dcb_cfg.bcn.rp_rmin = setting;
-		if (adapter->temp_dcb_cfg.bcn.rp_rmin !=
-		    adapter->dcb_cfg.bcn.rp_rmin)
-			adapter->dcb_set_bitmap |= BIT_BCN;
-		break;
-	case DCB_BCN_ATTR_W:
-		adapter->temp_dcb_cfg.bcn.rp_w = setting;
-		if (adapter->temp_dcb_cfg.bcn.rp_w !=
-		    adapter->dcb_cfg.bcn.rp_w)
-			adapter->dcb_set_bitmap |= BIT_BCN;
-		break;
-	case DCB_BCN_ATTR_RD:
-		adapter->temp_dcb_cfg.bcn.rp_rd = setting;
-		if (adapter->temp_dcb_cfg.bcn.rp_rd !=
-		    adapter->dcb_cfg.bcn.rp_rd)
-			adapter->dcb_set_bitmap |= BIT_BCN;
-		break;
-	case DCB_BCN_ATTR_RU:
-		adapter->temp_dcb_cfg.bcn.rp_ru = setting;
-		if (adapter->temp_dcb_cfg.bcn.rp_ru !=
-		    adapter->dcb_cfg.bcn.rp_ru)
-			adapter->dcb_set_bitmap |= BIT_BCN;
-		break;
-	case DCB_BCN_ATTR_WRTT:
-		adapter->temp_dcb_cfg.bcn.rp_wrtt = setting;
-		if (adapter->temp_dcb_cfg.bcn.rp_wrtt !=
-		    adapter->dcb_cfg.bcn.rp_wrtt)
-			adapter->dcb_set_bitmap |= BIT_BCN;
-		break;
-	case DCB_BCN_ATTR_RI:
-		adapter->temp_dcb_cfg.bcn.rp_ri = setting;
-		if (adapter->temp_dcb_cfg.bcn.rp_ri !=
-		    adapter->dcb_cfg.bcn.rp_ri)
-			adapter->dcb_set_bitmap |= BIT_BCN;
-		break;
-	default:
-		break;
-	}
-}
-
 struct dcbnl_rtnl_ops dcbnl_ops = {
 	.getstate	= ixgbe_dcbnl_get_state,
 	.setstate	= ixgbe_dcbnl_set_state,
@@ -633,9 +446,5 @@ struct dcbnl_rtnl_ops dcbnl_ops = {
 	.setnumtcs	= ixgbe_dcbnl_setnumtcs,
 	.getpfcstate	= ixgbe_dcbnl_getpfcstate,
 	.setpfcstate	= ixgbe_dcbnl_setpfcstate,
-	.getbcncfg      = ixgbe_dcbnl_getbcncfg,
-	.getbcnrp       = ixgbe_dcbnl_getbcnrp,
-	.setbcncfg      = ixgbe_dcbnl_setbcncfg,
-	.setbcnrp       = ixgbe_dcbnl_setbcnrp
 };