i40e: separate hw_features from runtime changing flags

The number of flags found in pf->flags has grown quite large, and there
are a lot of different types of flags. Most of the flags are simply
hardware features which are enabled on some firmware or some MAC types.
Other flags are dynamic run-time flags which enable or disable certain
features of the driver.

Separate these two types of flags into pf->hw_features and pf->flags.
The hw_features list will contain a set of features which are enabled at
init time. This will not contain toggles or otherwise dynamically
changing features. These flags should not need atomic protections, as
they will be set once during init and then be essentially read only.

Everything else will remain in the flags variable. These flags may be
modified at any time during run time. A future patch may wish to convert
these flags into set_bit/clear_bit/test_bit or similar approach to
ensure atomic correctness.

The I40E_FLAG_MFP_ENABLED flag may be a good fit for hw_features but
currently is used by ethtool in the private flags settings, and thus has
been left as part of flags.

Additionally, I40E_FLAG_DCB_CAPABLE may be a good fit for the
hw_features but this patch has not tried to untangle it yet.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

1 files changed, 17 insertions, 17 deletions

diff --git a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
index 1d29152256fe..c76549e41705 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
@@ -271,7 +271,7 @@ static void i40e_phy_type_to_ethtool(struct i40e_pf *pf, u32 *supported,
 		*advertising |= ADVERTISED_Autoneg;
 		if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 			*advertising |= ADVERTISED_1000baseT_Full;
-		if (pf->flags & I40E_FLAG_100M_SGMII_CAPABLE) {
+		if (pf->hw_features & I40E_HW_100M_SGMII_CAPABLE) {
 			*supported |= SUPPORTED_100baseT_Full;
 			*advertising |= ADVERTISED_100baseT_Full;
 		}
@@ -340,12 +340,12 @@ static void i40e_phy_type_to_ethtool(struct i40e_pf *pf, u32 *supported,
 			*advertising |= ADVERTISED_20000baseKR2_Full;
 	}
 	if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR) {
-		if (!(pf->flags & I40E_FLAG_HAVE_CRT_RETIMER))
+		if (!(pf->hw_features & I40E_HW_HAVE_CRT_RETIMER))
 			*supported |= SUPPORTED_10000baseKR_Full |
 				      SUPPORTED_Autoneg;
 		*advertising |= ADVERTISED_Autoneg;
 		if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
-			if (!(pf->flags & I40E_FLAG_HAVE_CRT_RETIMER))
+			if (!(pf->hw_features & I40E_HW_HAVE_CRT_RETIMER))
 				*advertising |= ADVERTISED_10000baseKR_Full;
 	}
 	if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4) {
@@ -356,12 +356,12 @@ static void i40e_phy_type_to_ethtool(struct i40e_pf *pf, u32 *supported,
 			*advertising |= ADVERTISED_10000baseKX4_Full;
 	}
 	if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX) {
-		if (!(pf->flags & I40E_FLAG_HAVE_CRT_RETIMER))
+		if (!(pf->hw_features & I40E_HW_HAVE_CRT_RETIMER))
 			*supported |= SUPPORTED_1000baseKX_Full |
 				      SUPPORTED_Autoneg;
 		*advertising |= ADVERTISED_Autoneg;
 		if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
-			if (!(pf->flags & I40E_FLAG_HAVE_CRT_RETIMER))
+			if (!(pf->hw_features & I40E_HW_HAVE_CRT_RETIMER))
 				*advertising |= ADVERTISED_1000baseKX_Full;
 	}
 	if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR ||
@@ -474,7 +474,7 @@ static void i40e_get_settings_link_up(struct i40e_hw *hw,
 			    SUPPORTED_1000baseT_Full;
 		if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 			advertising |= ADVERTISED_1000baseT_Full;
-		if (pf->flags & I40E_FLAG_100M_SGMII_CAPABLE) {
+		if (pf->hw_features & I40E_HW_100M_SGMII_CAPABLE) {
 			supported |= SUPPORTED_100baseT_Full;
 			if (hw_link_info->requested_speeds &
 			    I40E_LINK_SPEED_100MB)
@@ -1765,7 +1765,7 @@ static int i40e_get_ts_info(struct net_device *dev,
 			   BIT(HWTSTAMP_FILTER_PTP_V2_L2_SYNC) |
 			   BIT(HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ);
 
-	if (pf->flags & I40E_FLAG_PTP_L4_CAPABLE)
+	if (pf->hw_features & I40E_HW_PTP_L4_CAPABLE)
 		info->rx_filters |= BIT(HWTSTAMP_FILTER_PTP_V1_L4_SYNC) |
 				    BIT(HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) |
 				    BIT(HWTSTAMP_FILTER_PTP_V2_EVENT) |
@@ -2005,7 +2005,7 @@ static int i40e_set_phys_id(struct net_device *netdev,
 
 	switch (state) {
 	case ETHTOOL_ID_ACTIVE:
-		if (!(pf->flags & I40E_FLAG_PHY_CONTROLS_LEDS)) {
+		if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) {
 			pf->led_status = i40e_led_get(hw);
 		} else {
 			i40e_aq_set_phy_debug(hw, I40E_PHY_DEBUG_ALL, NULL);
@@ -2015,19 +2015,19 @@ static int i40e_set_phys_id(struct net_device *netdev,
 		}
 		return blink_freq;
 	case ETHTOOL_ID_ON:
-		if (!(pf->flags & I40E_FLAG_PHY_CONTROLS_LEDS))
+		if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS))
 			i40e_led_set(hw, 0xf, false);
 		else
 			ret = i40e_led_set_phy(hw, true, pf->led_status, 0);
 		break;
 	case ETHTOOL_ID_OFF:
-		if (!(pf->flags & I40E_FLAG_PHY_CONTROLS_LEDS))
+		if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS))
 			i40e_led_set(hw, 0x0, false);
 		else
 			ret = i40e_led_set_phy(hw, false, pf->led_status, 0);
 		break;
 	case ETHTOOL_ID_INACTIVE:
-		if (!(pf->flags & I40E_FLAG_PHY_CONTROLS_LEDS)) {
+		if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) {
 			i40e_led_set(hw, pf->led_status, false);
 		} else {
 			ret = i40e_led_set_phy(hw, false, pf->led_status,
@@ -2727,22 +2727,22 @@ static int i40e_set_rss_hash_opt(struct i40e_pf *pf, struct ethtool_rxnfc *nfc)
 	switch (nfc->flow_type) {
 	case TCP_V4_FLOW:
 		flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_TCP;
-		if (pf->flags & I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE)
+		if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
 			hena |=
 			  BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK);
 		break;
 	case TCP_V6_FLOW:
 		flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_TCP;
-		if (pf->flags & I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE)
+		if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
 			hena |=
 			  BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK);
-		if (pf->flags & I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE)
+		if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
 			hena |=
 			  BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_TCP_SYN_NO_ACK);
 		break;
 	case UDP_V4_FLOW:
 		flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;
-		if (pf->flags & I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE)
+		if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
 			hena |=
 			  BIT_ULL(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV4_UDP) |
 			  BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV4_UDP);
@@ -2751,7 +2751,7 @@ static int i40e_set_rss_hash_opt(struct i40e_pf *pf, struct ethtool_rxnfc *nfc)
 		break;
 	case UDP_V6_FLOW:
 		flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_UDP;
-		if (pf->flags & I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE)
+		if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
 			hena |=
 			  BIT_ULL(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV6_UDP) |
 			  BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV6_UDP);
@@ -4122,7 +4122,7 @@ flags_complete:
 	}
 
 	/* Only allow ATR evict on hardware that is capable of handling it */
-	if (pf->flags & I40E_FLAG_HW_ATR_EVICT_CAPABLE)
+	if (!(pf->hw_features & I40E_HW_ATR_EVICT_CAPABLE))
 		pf->flags &= ~I40E_FLAG_HW_ATR_EVICT_ENABLED;
 
 	if (changed_flags & I40E_FLAG_TRUE_PROMISC_SUPPORT) {