1 files changed, 135 insertions, 18 deletions

diff --git a/drivers/net/ethernet/intel/igc/igc_ethtool.c b/drivers/net/ethernet/intel/igc/igc_ethtool.c
index 817838677817..e94c1922b97a 100644
--- a/drivers/net/ethernet/intel/igc/igc_ethtool.c
+++ b/drivers/net/ethernet/intel/igc/igc_ethtool.c
@@ -8,6 +8,7 @@
 
 #include "igc.h"
 #include "igc_diag.h"
+#include "igc_tsn.h"
 
 /* forward declaration */
 struct igc_stats {
@@ -121,9 +122,11 @@ static const char igc_gstrings_test[][ETH_GSTRING_LEN] = {
 #define IGC_STATS_LEN \
 	(IGC_GLOBAL_STATS_LEN + IGC_NETDEV_STATS_LEN + IGC_QUEUE_STATS_LEN)
 
+#define IGC_PRIV_FLAGS_LEGACY_RX		BIT(0)
+#define IGC_PRIV_FLAGS_REVERSE_TSN_TXQ_PRIO	BIT(1)
 static const char igc_priv_flags_strings[][ETH_GSTRING_LEN] = {
-#define IGC_PRIV_FLAGS_LEGACY_RX	BIT(0)
 	"legacy-rx",
+	"reverse-tsn-txq-prio",
 };
 
 #define IGC_PRIV_FLAGS_STR_LEN ARRAY_SIZE(igc_priv_flags_strings)
@@ -624,11 +627,11 @@ igc_ethtool_set_ringparam(struct net_device *netdev,
 	}
 
 	if (adapter->num_tx_queues > adapter->num_rx_queues)
-		temp_ring = vmalloc(array_size(sizeof(struct igc_ring),
-					       adapter->num_tx_queues));
+		temp_ring = vmalloc_array(adapter->num_tx_queues,
+					  sizeof(struct igc_ring));
 	else
-		temp_ring = vmalloc(array_size(sizeof(struct igc_ring),
-					       adapter->num_rx_queues));
+		temp_ring = vmalloc_array(adapter->num_rx_queues,
+					  sizeof(struct igc_ring));
 
 	if (!temp_ring) {
 		err = -ENOMEM;
@@ -807,7 +810,7 @@ static int igc_ethtool_get_sset_count(struct net_device *netdev, int sset)
 	case ETH_SS_PRIV_FLAGS:
 		return IGC_PRIV_FLAGS_STR_LEN;
 	default:
-		return -ENOTSUPP;
+		return -EOPNOTSUPP;
 	}
 }
 
@@ -1044,9 +1047,11 @@ static int igc_ethtool_get_nfc_rules(struct igc_adapter *adapter,
 	return 0;
 }
 
-static int igc_ethtool_get_rss_hash_opts(struct igc_adapter *adapter,
-					 struct ethtool_rxnfc *cmd)
+static int igc_ethtool_get_rxfh_fields(struct net_device *dev,
+				       struct ethtool_rxfh_fields *cmd)
 {
+	struct igc_adapter *adapter = netdev_priv(dev);
+
 	cmd->data = 0;
 
 	/* Report default options for RSS on igc */
@@ -1086,15 +1091,19 @@ static int igc_ethtool_get_rss_hash_opts(struct igc_adapter *adapter,
 	return 0;
 }
 
+static u32 igc_ethtool_get_rx_ring_count(struct net_device *dev)
+{
+	struct igc_adapter *adapter = netdev_priv(dev);
+
+	return adapter->num_rx_queues;
+}
+
 static int igc_ethtool_get_rxnfc(struct net_device *dev,
 				 struct ethtool_rxnfc *cmd, u32 *rule_locs)
 {
 	struct igc_adapter *adapter = netdev_priv(dev);
 
 	switch (cmd->cmd) {
-	case ETHTOOL_GRXRINGS:
-		cmd->data = adapter->num_rx_queues;
-		return 0;
 	case ETHTOOL_GRXCLSRLCNT:
 		cmd->rule_cnt = adapter->nfc_rule_count;
 		return 0;
@@ -1102,8 +1111,6 @@ static int igc_ethtool_get_rxnfc(struct net_device *dev,
 		return igc_ethtool_get_nfc_rule(adapter, cmd);
 	case ETHTOOL_GRXCLSRLALL:
 		return igc_ethtool_get_nfc_rules(adapter, cmd, rule_locs);
-	case ETHTOOL_GRXFH:
-		return igc_ethtool_get_rss_hash_opts(adapter, cmd);
 	default:
 		return -EOPNOTSUPP;
 	}
@@ -1111,9 +1118,11 @@ static int igc_ethtool_get_rxnfc(struct net_device *dev,
 
 #define UDP_RSS_FLAGS (IGC_FLAG_RSS_FIELD_IPV4_UDP | \
 		       IGC_FLAG_RSS_FIELD_IPV6_UDP)
-static int igc_ethtool_set_rss_hash_opt(struct igc_adapter *adapter,
-					struct ethtool_rxnfc *nfc)
+static int igc_ethtool_set_rxfh_fields(struct net_device *dev,
+				       const struct ethtool_rxfh_fields *nfc,
+				       struct netlink_ext_ack *extack)
 {
+	struct igc_adapter *adapter = netdev_priv(dev);
 	u32 flags = adapter->flags;
 
 	/* RSS does not support anything other than hashing
@@ -1278,6 +1287,24 @@ static void igc_ethtool_init_nfc_rule(struct igc_nfc_rule *rule,
 		rule->flex = true;
 	else
 		rule->flex = false;
+
+	/* The wildcard rule is only applied if:
+	 *  a) None of the other filtering rules match (match_flags is zero)
+	 *  b) The flow type is ETHER_FLOW only (no additional fields set)
+	 *  c) Mask for Source MAC address is not specified (all zeros)
+	 *  d) Mask for Destination MAC address is not specified (all zeros)
+	 *  e) Mask for L2 EtherType is not specified (zero)
+	 *
+	 * If all these conditions are met, the rule is treated as a wildcard
+	 * rule. Default queue feature will be used, so that all packets that do
+	 * not match any other rule will be routed to the default queue.
+	 */
+	if (!rule->filter.match_flags &&
+	    fsp->flow_type == ETHER_FLOW &&
+	    is_zero_ether_addr(fsp->m_u.ether_spec.h_source) &&
+	    is_zero_ether_addr(fsp->m_u.ether_spec.h_dest) &&
+	    !fsp->m_u.ether_spec.h_proto)
+		rule->filter.match_flags = IGC_FILTER_FLAG_DEFAULT_QUEUE;
 }
 
 /**
@@ -1424,8 +1451,6 @@ static int igc_ethtool_set_rxnfc(struct net_device *dev,
 	struct igc_adapter *adapter = netdev_priv(dev);
 
 	switch (cmd->cmd) {
-	case ETHTOOL_SRXFH:
-		return igc_ethtool_set_rss_hash_opt(adapter, cmd);
 	case ETHTOOL_SRXCLSRLINS:
 		return igc_ethtool_add_nfc_rule(adapter, cmd);
 	case ETHTOOL_SRXCLSRLDEL:
@@ -1599,6 +1624,9 @@ static u32 igc_ethtool_get_priv_flags(struct net_device *netdev)
 	if (adapter->flags & IGC_FLAG_RX_LEGACY)
 		priv_flags |= IGC_PRIV_FLAGS_LEGACY_RX;
 
+	if (adapter->flags & IGC_FLAG_TSN_REVERSE_TXQ_PRIO)
+		priv_flags |= IGC_PRIV_FLAGS_REVERSE_TSN_TXQ_PRIO;
+
 	return priv_flags;
 }
 
@@ -1607,10 +1635,13 @@ static int igc_ethtool_set_priv_flags(struct net_device *netdev, u32 priv_flags)
 	struct igc_adapter *adapter = netdev_priv(netdev);
 	unsigned int flags = adapter->flags;
 
-	flags &= ~IGC_FLAG_RX_LEGACY;
+	flags &= ~(IGC_FLAG_RX_LEGACY | IGC_FLAG_TSN_REVERSE_TXQ_PRIO);
 	if (priv_flags & IGC_PRIV_FLAGS_LEGACY_RX)
 		flags |= IGC_FLAG_RX_LEGACY;
 
+	if (priv_flags & IGC_PRIV_FLAGS_REVERSE_TSN_TXQ_PRIO)
+		flags |= IGC_FLAG_TSN_REVERSE_TXQ_PRIO;
+
 	if (flags != adapter->flags) {
 		adapter->flags = flags;
 
@@ -1781,6 +1812,83 @@ static int igc_ethtool_set_eee(struct net_device *netdev,
 	return 0;
 }
 
+static int igc_ethtool_get_mm(struct net_device *netdev,
+			      struct ethtool_mm_state *cmd)
+{
+	struct igc_adapter *adapter = netdev_priv(netdev);
+	struct igc_fpe_t *fpe = &adapter->fpe;
+
+	ethtool_mmsv_get_mm(&fpe->mmsv, cmd);
+	cmd->tx_min_frag_size = fpe->tx_min_frag_size;
+	cmd->rx_min_frag_size = IGC_RX_MIN_FRAG_SIZE;
+
+	return 0;
+}
+
+static int igc_ethtool_set_mm(struct net_device *netdev,
+			      struct ethtool_mm_cfg *cmd,
+			      struct netlink_ext_ack *extack)
+{
+	struct igc_adapter *adapter = netdev_priv(netdev);
+	struct igc_fpe_t *fpe = &adapter->fpe;
+
+	fpe->tx_min_frag_size = igc_fpe_get_supported_frag_size(cmd->tx_min_frag_size);
+	if (fpe->tx_min_frag_size != cmd->tx_min_frag_size)
+		NL_SET_ERR_MSG_MOD(extack,
+				   "tx-min-frag-size value set is unsupported. Rounded up to supported value (64, 128, 192, 256)");
+
+	if (fpe->mmsv.pmac_enabled != cmd->pmac_enabled) {
+		if (cmd->pmac_enabled)
+			static_branch_inc(&igc_fpe_enabled);
+		else
+			static_branch_dec(&igc_fpe_enabled);
+	}
+
+	ethtool_mmsv_set_mm(&fpe->mmsv, cmd);
+
+	return igc_tsn_offload_apply(adapter);
+}
+
+/**
+ * igc_ethtool_get_frame_ass_error - Get the frame assembly error count.
+ * @reg_value: Register value for IGC_PRMEXCPRCNT
+ * Return: The count of frame assembly errors.
+ */
+static u64 igc_ethtool_get_frame_ass_error(u32 reg_value)
+{
+	/* Out of order statistics */
+	u32 ooo_frame_cnt, ooo_frag_cnt;
+	u32 miss_frame_frag_cnt;
+
+	ooo_frame_cnt = FIELD_GET(IGC_PRMEXCPRCNT_OOO_FRAME_CNT, reg_value);
+	ooo_frag_cnt = FIELD_GET(IGC_PRMEXCPRCNT_OOO_FRAG_CNT, reg_value);
+	miss_frame_frag_cnt = FIELD_GET(IGC_PRMEXCPRCNT_MISS_FRAME_FRAG_CNT,
+					reg_value);
+
+	return ooo_frame_cnt + ooo_frag_cnt + miss_frame_frag_cnt;
+}
+
+static u64 igc_ethtool_get_frame_smd_error(u32 reg_value)
+{
+	return FIELD_GET(IGC_PRMEXCPRCNT_OOO_SMDC, reg_value);
+}
+
+static void igc_ethtool_get_mm_stats(struct net_device *dev,
+				     struct ethtool_mm_stats *stats)
+{
+	struct igc_adapter *adapter = netdev_priv(dev);
+	struct igc_hw *hw = &adapter->hw;
+	u32 reg_value;
+
+	reg_value = rd32(IGC_PRMEXCPRCNT);
+
+	stats->MACMergeFrameAssErrorCount = igc_ethtool_get_frame_ass_error(reg_value);
+	stats->MACMergeFrameSmdErrorCount = igc_ethtool_get_frame_smd_error(reg_value);
+	stats->MACMergeFrameAssOkCount = rd32(IGC_PRMPTDRCNT);
+	stats->MACMergeFragCountRx = rd32(IGC_PRMEVNTRCNT);
+	stats->MACMergeFragCountTx = rd32(IGC_PRMEVNTTCNT);
+}
+
 static int igc_ethtool_get_link_ksettings(struct net_device *netdev,
 					  struct ethtool_link_ksettings *cmd)
 {
@@ -1990,6 +2098,9 @@ static void igc_ethtool_diag_test(struct net_device *netdev,
 		netdev_info(adapter->netdev, "Offline testing starting");
 		set_bit(__IGC_TESTING, &adapter->state);
 
+		/* power up PHY for link test */
+		igc_power_up_phy_copper(&adapter->hw);
+
 		/* Link test performed before hardware reset so autoneg doesn't
 		 * interfere with test result
 		 */
@@ -2063,9 +2174,12 @@ static const struct ethtool_ops igc_ethtool_ops = {
 	.set_coalesce		= igc_ethtool_set_coalesce,
 	.get_rxnfc		= igc_ethtool_get_rxnfc,
 	.set_rxnfc		= igc_ethtool_set_rxnfc,
+	.get_rx_ring_count	= igc_ethtool_get_rx_ring_count,
 	.get_rxfh_indir_size	= igc_ethtool_get_rxfh_indir_size,
 	.get_rxfh		= igc_ethtool_get_rxfh,
 	.set_rxfh		= igc_ethtool_set_rxfh,
+	.get_rxfh_fields	= igc_ethtool_get_rxfh_fields,
+	.set_rxfh_fields	= igc_ethtool_set_rxfh_fields,
 	.get_ts_info		= igc_ethtool_get_ts_info,
 	.get_channels		= igc_ethtool_get_channels,
 	.set_channels		= igc_ethtool_set_channels,
@@ -2076,6 +2190,9 @@ static const struct ethtool_ops igc_ethtool_ops = {
 	.get_link_ksettings	= igc_ethtool_get_link_ksettings,
 	.set_link_ksettings	= igc_ethtool_set_link_ksettings,
 	.self_test		= igc_ethtool_diag_test,
+	.get_mm			= igc_ethtool_get_mm,
+	.get_mm_stats		= igc_ethtool_get_mm_stats,
+	.set_mm			= igc_ethtool_set_mm,
 };
 
 void igc_ethtool_set_ops(struct net_device *netdev)