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-rw-r--r--drivers/net/ixgbe/ixgbe_dcb.h27
-rw-r--r--drivers/net/ixgbe/ixgbe_dcb_nl.c176
2 files changed, 202 insertions, 1 deletions
diff --git a/drivers/net/ixgbe/ixgbe_dcb.h b/drivers/net/ixgbe/ixgbe_dcb.h
index 62dfd243bed..75f6efe1e36 100644
--- a/drivers/net/ixgbe/ixgbe_dcb.h
+++ b/drivers/net/ixgbe/ixgbe_dcb.h
@@ -108,7 +108,34 @@ enum dcb_rx_pba_cfg {
pba_80_48 /* PBA[0-3] each use 80KB, PBA[4-7] each use 48KB */
};
+/*
+ * This structure contains many values encoded as fixed-point
+ * numbers, meaning that some of bits are dedicated to the
+ * magnitude and others to the fraction part. In the comments
+ * this is shown as f=n, where n is the number of fraction bits.
+ * These fraction bits are always the low-order bits. The size
+ * of the magnitude is not specified.
+ */
+struct bcn_config {
+ u32 rp_admin_mode[MAX_TRAFFIC_CLASS]; /* BCN enabled, per TC */
+ u32 bcna_option[2]; /* BCNA Port + MAC Addr */
+ u32 rp_w; /* Derivative Weight, f=3 */
+ u32 rp_gi; /* Increase Gain, f=12 */
+ u32 rp_gd; /* Decrease Gain, f=12 */
+ u32 rp_ru; /* Rate Unit */
+ u32 rp_alpha; /* Max Decrease Factor, f=12 */
+ u32 rp_beta; /* Max Increase Factor, f=12 */
+ u32 rp_ri; /* Initial Rate */
+ u32 rp_td; /* Drift Interval Timer */
+ u32 rp_rd; /* Drift Increase */
+ u32 rp_tmax; /* Severe Congestion Backoff Timer Range */
+ u32 rp_rmin; /* Severe Congestion Restart Rate */
+ u32 rp_wrtt; /* RTT Moving Average Weight */
+};
+
struct ixgbe_dcb_config {
+ struct bcn_config bcn;
+
struct tc_configuration tc_config[MAX_TRAFFIC_CLASS];
u8 bw_percentage[2][MAX_BW_GROUP]; /* One each for Tx/Rx */
diff --git a/drivers/net/ixgbe/ixgbe_dcb_nl.c b/drivers/net/ixgbe/ixgbe_dcb_nl.c
index dd940a8f935..615c2803202 100644
--- a/drivers/net/ixgbe/ixgbe_dcb_nl.c
+++ b/drivers/net/ixgbe/ixgbe_dcb_nl.c
@@ -34,6 +34,7 @@
#define BIT_PFC 0x02
#define BIT_PG_RX 0x04
#define BIT_PG_TX 0x08
+#define BIT_BCN 0x10
int ixgbe_copy_dcb_cfg(struct ixgbe_dcb_config *src_dcb_cfg,
struct ixgbe_dcb_config *dst_dcb_cfg, int tc_max)
@@ -88,6 +89,23 @@ 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.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;
}
@@ -313,6 +331,7 @@ static u8 ixgbe_dcbnl_set_all(struct net_device *netdev)
struct ixgbe_adapter *adapter = netdev_priv(netdev);
int ret;
+ adapter->dcb_set_bitmap &= ~BIT_BCN; /* no set for BCN */
if (!adapter->dcb_set_bitmap)
return 1;
@@ -417,6 +436,157 @@ 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_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_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,
@@ -436,6 +606,10 @@ struct dcbnl_rtnl_ops dcbnl_ops = {
.getnumtcs = ixgbe_dcbnl_getnumtcs,
.setnumtcs = ixgbe_dcbnl_setnumtcs,
.getpfcstate = ixgbe_dcbnl_getpfcstate,
- .setpfcstate = ixgbe_dcbnl_setpfcstate
+ .setpfcstate = ixgbe_dcbnl_setpfcstate,
+ .getbcncfg = ixgbe_dcbnl_getbcncfg,
+ .getbcnrp = ixgbe_dcbnl_getbcnrp,
+ .setbcncfg = ixgbe_dcbnl_setbcncfg,
+ .setbcnrp = ixgbe_dcbnl_setbcnrp
};
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-04 03:26:13 +0000