8 files changed, 337 insertions, 922 deletions

diff --git a/drivers/net/ethernet/chelsio/cxgb4/Makefile b/drivers/net/ethernet/chelsio/cxgb4/Makefile
index 85c92821b239..ace0ab98d0f1 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/Makefile
+++ b/drivers/net/ethernet/chelsio/cxgb4/Makefile
@@ -7,5 +7,4 @@ obj-$(CONFIG_CHELSIO_T4) += cxgb4.o
 cxgb4-objs := cxgb4_main.o l2t.o t4_hw.o sge.o clip_tbl.o cxgb4_ethtool.o
 cxgb4-$(CONFIG_CHELSIO_T4_DCB) +=  cxgb4_dcb.o
 cxgb4-$(CONFIG_CHELSIO_T4_FCOE) +=  cxgb4_fcoe.o
-cxgb4-$(CONFIG_CHELSIO_T4_UWIRE) +=  cxgb4_ppm.o
 cxgb4-$(CONFIG_DEBUG_FS) += cxgb4_debugfs.o
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
index b4fceb92479f..2e2aa9fec9bb 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
@@ -418,6 +418,7 @@ struct trace_params {
 struct link_config {
 	unsigned short supported;        /* link capabilities */
 	unsigned short advertising;      /* advertised capabilities */
+	unsigned short lp_advertising;   /* peer advertised capabilities */
 	unsigned short requested_speed;  /* speed user has requested */
 	unsigned short speed;            /* actual link speed */
 	unsigned char  requested_fc;     /* flow control user has requested */
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_ethtool.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_ethtool.c
index 7a0b92b2f73c..02f80febeb91 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_ethtool.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_ethtool.c
@@ -480,178 +480,293 @@ static int identify_port(struct net_device *dev,
 	return t4_identify_port(adap, adap->pf, netdev2pinfo(dev)->viid, val);
 }
 
-static unsigned int from_fw_linkcaps(enum fw_port_type type, unsigned int caps)
+/**
+ *	from_fw_port_mod_type - translate Firmware Port/Module type to Ethtool
+ *	@port_type: Firmware Port Type
+ *	@mod_type: Firmware Module Type
+ *
+ *	Translate Firmware Port/Module type to Ethtool Port Type.
+ */
+static int from_fw_port_mod_type(enum fw_port_type port_type,
+				 enum fw_port_module_type mod_type)
 {
-	unsigned int v = 0;
-
-	if (type == FW_PORT_TYPE_BT_SGMII || type == FW_PORT_TYPE_BT_XFI ||
-	    type == FW_PORT_TYPE_BT_XAUI) {
-		v |= SUPPORTED_TP;
-		if (caps & FW_PORT_CAP_SPEED_100M)
-			v |= SUPPORTED_100baseT_Full;
-		if (caps & FW_PORT_CAP_SPEED_1G)
-			v |= SUPPORTED_1000baseT_Full;
-		if (caps & FW_PORT_CAP_SPEED_10G)
-			v |= SUPPORTED_10000baseT_Full;
-	} else if (type == FW_PORT_TYPE_KX4 || type == FW_PORT_TYPE_KX) {
-		v |= SUPPORTED_Backplane;
-		if (caps & FW_PORT_CAP_SPEED_1G)
-			v |= SUPPORTED_1000baseKX_Full;
-		if (caps & FW_PORT_CAP_SPEED_10G)
-			v |= SUPPORTED_10000baseKX4_Full;
-	} else if (type == FW_PORT_TYPE_KR) {
-		v |= SUPPORTED_Backplane | SUPPORTED_10000baseKR_Full;
-	} else if (type == FW_PORT_TYPE_BP_AP) {
-		v |= SUPPORTED_Backplane | SUPPORTED_10000baseR_FEC |
-		     SUPPORTED_10000baseKR_Full | SUPPORTED_1000baseKX_Full;
-	} else if (type == FW_PORT_TYPE_BP4_AP) {
-		v |= SUPPORTED_Backplane | SUPPORTED_10000baseR_FEC |
-		     SUPPORTED_10000baseKR_Full | SUPPORTED_1000baseKX_Full |
-		     SUPPORTED_10000baseKX4_Full;
-	} else if (type == FW_PORT_TYPE_FIBER_XFI ||
-		   type == FW_PORT_TYPE_FIBER_XAUI ||
-		   type == FW_PORT_TYPE_SFP ||
-		   type == FW_PORT_TYPE_QSFP_10G ||
-		   type == FW_PORT_TYPE_QSA) {
-		v |= SUPPORTED_FIBRE;
-		if (caps & FW_PORT_CAP_SPEED_1G)
-			v |= SUPPORTED_1000baseT_Full;
-		if (caps & FW_PORT_CAP_SPEED_10G)
-			v |= SUPPORTED_10000baseT_Full;
-	} else if (type == FW_PORT_TYPE_BP40_BA ||
-		   type == FW_PORT_TYPE_QSFP) {
-		v |= SUPPORTED_40000baseSR4_Full;
-		v |= SUPPORTED_FIBRE;
+	if (port_type == FW_PORT_TYPE_BT_SGMII ||
+	    port_type == FW_PORT_TYPE_BT_XFI ||
+	    port_type == FW_PORT_TYPE_BT_XAUI) {
+		return PORT_TP;
+	} else if (port_type == FW_PORT_TYPE_FIBER_XFI ||
+		   port_type == FW_PORT_TYPE_FIBER_XAUI) {
+		return PORT_FIBRE;
+	} else if (port_type == FW_PORT_TYPE_SFP ||
+		   port_type == FW_PORT_TYPE_QSFP_10G ||
+		   port_type == FW_PORT_TYPE_QSA ||
+		   port_type == FW_PORT_TYPE_QSFP) {
+		if (mod_type == FW_PORT_MOD_TYPE_LR ||
+		    mod_type == FW_PORT_MOD_TYPE_SR ||
+		    mod_type == FW_PORT_MOD_TYPE_ER ||
+		    mod_type == FW_PORT_MOD_TYPE_LRM)
+			return PORT_FIBRE;
+		else if (mod_type == FW_PORT_MOD_TYPE_TWINAX_PASSIVE ||
+			 mod_type == FW_PORT_MOD_TYPE_TWINAX_ACTIVE)
+			return PORT_DA;
+		else
+			return PORT_OTHER;
 	}
 
-	if (caps & FW_PORT_CAP_ANEG)
-		v |= SUPPORTED_Autoneg;
-	return v;
+	return PORT_OTHER;
 }
 
-static unsigned int to_fw_linkcaps(unsigned int caps)
+/**
+ *	speed_to_fw_caps - translate Port Speed to Firmware Port Capabilities
+ *	@speed: speed in Kb/s
+ *
+ *	Translates a specific Port Speed into a Firmware Port Capabilities
+ *	value.
+ */
+static unsigned int speed_to_fw_caps(int speed)
 {
-	unsigned int v = 0;
-
-	if (caps & ADVERTISED_100baseT_Full)
-		v |= FW_PORT_CAP_SPEED_100M;
-	if (caps & ADVERTISED_1000baseT_Full)
-		v |= FW_PORT_CAP_SPEED_1G;
-	if (caps & ADVERTISED_10000baseT_Full)
-		v |= FW_PORT_CAP_SPEED_10G;
-	if (caps & ADVERTISED_40000baseSR4_Full)
-		v |= FW_PORT_CAP_SPEED_40G;
-	return v;
+	if (speed == 100)
+		return FW_PORT_CAP_SPEED_100M;
+	if (speed == 1000)
+		return FW_PORT_CAP_SPEED_1G;
+	if (speed == 10000)
+		return FW_PORT_CAP_SPEED_10G;
+	if (speed == 25000)
+		return FW_PORT_CAP_SPEED_25G;
+	if (speed == 40000)
+		return FW_PORT_CAP_SPEED_40G;
+	if (speed == 100000)
+		return FW_PORT_CAP_SPEED_100G;
+	return 0;
 }
 
-static int get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+/**
+ *	fw_caps_to_lmm - translate Firmware to ethtool Link Mode Mask
+ *	@port_type: Firmware Port Type
+ *	@fw_caps: Firmware Port Capabilities
+ *	@link_mode_mask: ethtool Link Mode Mask
+ *
+ *	Translate a Firmware Port Capabilities specification to an ethtool
+ *	Link Mode Mask.
+ */
+static void fw_caps_to_lmm(enum fw_port_type port_type,
+			   unsigned int fw_caps,
+			   unsigned long *link_mode_mask)
 {
-	const struct port_info *p = netdev_priv(dev);
-
-	if (p->port_type == FW_PORT_TYPE_BT_SGMII ||
-	    p->port_type == FW_PORT_TYPE_BT_XFI ||
-	    p->port_type == FW_PORT_TYPE_BT_XAUI) {
-		cmd->port = PORT_TP;
-	} else if (p->port_type == FW_PORT_TYPE_FIBER_XFI ||
-		   p->port_type == FW_PORT_TYPE_FIBER_XAUI) {
-		cmd->port = PORT_FIBRE;
-	} else if (p->port_type == FW_PORT_TYPE_SFP ||
-		   p->port_type == FW_PORT_TYPE_QSFP_10G ||
-		   p->port_type == FW_PORT_TYPE_QSA ||
-		   p->port_type == FW_PORT_TYPE_QSFP) {
-		if (p->mod_type == FW_PORT_MOD_TYPE_LR ||
-		    p->mod_type == FW_PORT_MOD_TYPE_SR ||
-		    p->mod_type == FW_PORT_MOD_TYPE_ER ||
-		    p->mod_type == FW_PORT_MOD_TYPE_LRM)
-			cmd->port = PORT_FIBRE;
-		else if (p->mod_type == FW_PORT_MOD_TYPE_TWINAX_PASSIVE ||
-			 p->mod_type == FW_PORT_MOD_TYPE_TWINAX_ACTIVE)
-			cmd->port = PORT_DA;
-		else
-			cmd->port = PORT_OTHER;
+	#define SET_LMM(__lmm_name) __set_bit(ETHTOOL_LINK_MODE_ ## __lmm_name \
+					## _BIT, link_mode_mask)
+
+	#define FW_CAPS_TO_LMM(__fw_name, __lmm_name) \
+		do { \
+			if (fw_caps & FW_PORT_CAP_ ## __fw_name) \
+				SET_LMM(__lmm_name); \
+		} while (0)
+
+	switch (port_type) {
+	case FW_PORT_TYPE_BT_SGMII:
+	case FW_PORT_TYPE_BT_XFI:
+	case FW_PORT_TYPE_BT_XAUI:
+		SET_LMM(TP);
+		FW_CAPS_TO_LMM(SPEED_100M, 100baseT_Full);
+		FW_CAPS_TO_LMM(SPEED_1G, 1000baseT_Full);
+		FW_CAPS_TO_LMM(SPEED_10G, 10000baseT_Full);
+		break;
+
+	case FW_PORT_TYPE_KX4:
+	case FW_PORT_TYPE_KX:
+		SET_LMM(Backplane);
+		FW_CAPS_TO_LMM(SPEED_1G, 1000baseKX_Full);
+		FW_CAPS_TO_LMM(SPEED_10G, 10000baseKX4_Full);
+		break;
+
+	case FW_PORT_TYPE_KR:
+		SET_LMM(Backplane);
+		SET_LMM(10000baseKR_Full);
+		break;
+
+	case FW_PORT_TYPE_BP_AP:
+		SET_LMM(Backplane);
+		SET_LMM(10000baseR_FEC);
+		SET_LMM(10000baseKR_Full);
+		SET_LMM(1000baseKX_Full);
+		break;
+
+	case FW_PORT_TYPE_BP4_AP:
+		SET_LMM(Backplane);
+		SET_LMM(10000baseR_FEC);
+		SET_LMM(10000baseKR_Full);
+		SET_LMM(1000baseKX_Full);
+		SET_LMM(10000baseKX4_Full);
+		break;
+
+	case FW_PORT_TYPE_FIBER_XFI:
+	case FW_PORT_TYPE_FIBER_XAUI:
+	case FW_PORT_TYPE_SFP:
+	case FW_PORT_TYPE_QSFP_10G:
+	case FW_PORT_TYPE_QSA:
+		SET_LMM(FIBRE);
+		FW_CAPS_TO_LMM(SPEED_1G, 1000baseT_Full);
+		FW_CAPS_TO_LMM(SPEED_10G, 10000baseT_Full);
+		break;
+
+	case FW_PORT_TYPE_BP40_BA:
+	case FW_PORT_TYPE_QSFP:
+		SET_LMM(FIBRE);
+		SET_LMM(40000baseSR4_Full);
+		break;
+
+	case FW_PORT_TYPE_CR_QSFP:
+	case FW_PORT_TYPE_SFP28:
+		SET_LMM(FIBRE);
+		SET_LMM(25000baseCR_Full);
+		break;
+
+	case FW_PORT_TYPE_KR4_100G:
+	case FW_PORT_TYPE_CR4_QSFP:
+		SET_LMM(FIBRE);
+		SET_LMM(100000baseCR4_Full);
+		break;
+
+	default:
+		break;
+	}
+
+	FW_CAPS_TO_LMM(ANEG, Autoneg);
+	FW_CAPS_TO_LMM(802_3_PAUSE, Pause);
+	FW_CAPS_TO_LMM(802_3_ASM_DIR, Asym_Pause);
+
+	#undef FW_CAPS_TO_LMM
+	#undef SET_LMM
+}
+
+/**
+ *	lmm_to_fw_caps - translate ethtool Link Mode Mask to Firmware
+ *	capabilities
+ *
+ *	@link_mode_mask: ethtool Link Mode Mask
+ *
+ *	Translate ethtool Link Mode Mask into a Firmware Port capabilities
+ *	value.
+ */
+static unsigned int lmm_to_fw_caps(const unsigned long *link_mode_mask)
+{
+	unsigned int fw_caps = 0;
+
+	#define LMM_TO_FW_CAPS(__lmm_name, __fw_name) \
+		do { \
+			if (test_bit(ETHTOOL_LINK_MODE_ ## __lmm_name ## _BIT, \
+				     link_mode_mask)) \
+				fw_caps |= FW_PORT_CAP_ ## __fw_name; \
+		} while (0)
+
+	LMM_TO_FW_CAPS(100baseT_Full, SPEED_100M);
+	LMM_TO_FW_CAPS(1000baseT_Full, SPEED_1G);
+	LMM_TO_FW_CAPS(10000baseT_Full, SPEED_10G);
+	LMM_TO_FW_CAPS(40000baseSR4_Full, SPEED_40G);
+	LMM_TO_FW_CAPS(25000baseCR_Full, SPEED_25G);
+	LMM_TO_FW_CAPS(100000baseCR4_Full, SPEED_100G);
+
+	#undef LMM_TO_FW_CAPS
+
+	return fw_caps;
+}
+
+static int get_link_ksettings(struct net_device *dev,
+			      struct ethtool_link_ksettings *link_ksettings)
+{
+	const struct port_info *pi = netdev_priv(dev);
+	struct ethtool_link_settings *base = &link_ksettings->base;
+
+	ethtool_link_ksettings_zero_link_mode(link_ksettings, supported);
+	ethtool_link_ksettings_zero_link_mode(link_ksettings, advertising);
+	ethtool_link_ksettings_zero_link_mode(link_ksettings, lp_advertising);
+
+	base->port = from_fw_port_mod_type(pi->port_type, pi->mod_type);
+
+	if (pi->mdio_addr >= 0) {
+		base->phy_address = pi->mdio_addr;
+		base->mdio_support = (pi->port_type == FW_PORT_TYPE_BT_SGMII
+				      ? ETH_MDIO_SUPPORTS_C22
+				      : ETH_MDIO_SUPPORTS_C45);
 	} else {
-		cmd->port = PORT_OTHER;
+		base->phy_address = 255;
+		base->mdio_support = 0;
 	}
 
-	if (p->mdio_addr >= 0) {
-		cmd->phy_address = p->mdio_addr;
-		cmd->transceiver = XCVR_EXTERNAL;
-		cmd->mdio_support = p->port_type == FW_PORT_TYPE_BT_SGMII ?
-			MDIO_SUPPORTS_C22 : MDIO_SUPPORTS_C45;
+	fw_caps_to_lmm(pi->port_type, pi->link_cfg.supported,
+		       link_ksettings->link_modes.supported);
+	fw_caps_to_lmm(pi->port_type, pi->link_cfg.advertising,
+		       link_ksettings->link_modes.advertising);
+	fw_caps_to_lmm(pi->port_type, pi->link_cfg.lp_advertising,
+		       link_ksettings->link_modes.lp_advertising);
+
+	if (netif_carrier_ok(dev)) {
+		base->speed = pi->link_cfg.speed;
+		base->duplex = DUPLEX_FULL;
 	} else {
-		cmd->phy_address = 0;  /* not really, but no better option */
-		cmd->transceiver = XCVR_INTERNAL;
-		cmd->mdio_support = 0;
+		base->speed = SPEED_UNKNOWN;
+		base->duplex = DUPLEX_UNKNOWN;
 	}
 
-	cmd->supported = from_fw_linkcaps(p->port_type, p->link_cfg.supported);
-	cmd->advertising = from_fw_linkcaps(p->port_type,
-					    p->link_cfg.advertising);
-	ethtool_cmd_speed_set(cmd,
-			      netif_carrier_ok(dev) ? p->link_cfg.speed : 0);
-	cmd->duplex = DUPLEX_FULL;
-	cmd->autoneg = p->link_cfg.autoneg;
-	cmd->maxtxpkt = 0;
-	cmd->maxrxpkt = 0;
-	return 0;
-}
+	base->autoneg = pi->link_cfg.autoneg;
+	if (pi->link_cfg.supported & FW_PORT_CAP_ANEG)
+		ethtool_link_ksettings_add_link_mode(link_ksettings,
+						     supported, Autoneg);
+	if (pi->link_cfg.autoneg)
+		ethtool_link_ksettings_add_link_mode(link_ksettings,
+						     advertising, Autoneg);
 
-static unsigned int speed_to_caps(int speed)
-{
-	if (speed == 100)
-		return FW_PORT_CAP_SPEED_100M;
-	if (speed == 1000)
-		return FW_PORT_CAP_SPEED_1G;
-	if (speed == 10000)
-		return FW_PORT_CAP_SPEED_10G;
-	if (speed == 40000)
-		return FW_PORT_CAP_SPEED_40G;
 	return 0;
 }
 
-static int set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+static int set_link_ksettings(struct net_device *dev,
+			      const struct ethtool_link_ksettings
+						*link_ksettings)
 {
-	unsigned int cap;
-	struct port_info *p = netdev_priv(dev);
-	struct link_config *lc = &p->link_cfg;
-	u32 speed = ethtool_cmd_speed(cmd);
+	struct port_info *pi = netdev_priv(dev);
+	struct link_config *lc = &pi->link_cfg;
+	const struct ethtool_link_settings *base = &link_ksettings->base;
 	struct link_config old_lc;
-	int ret;
+	unsigned int fw_caps;
+	int ret = 0;
 
-	if (cmd->duplex != DUPLEX_FULL)     /* only full-duplex supported */
+	/* only full-duplex supported */
+	if (base->duplex != DUPLEX_FULL)
 		return -EINVAL;
 
 	if (!(lc->supported & FW_PORT_CAP_ANEG)) {
 		/* PHY offers a single speed.  See if that's what's
 		 * being requested.
 		 */
-		if (cmd->autoneg == AUTONEG_DISABLE &&
-		    (lc->supported & speed_to_caps(speed)))
+		if (base->autoneg == AUTONEG_DISABLE &&
+		    (lc->supported & speed_to_fw_caps(base->speed)))
 			return 0;
 		return -EINVAL;
 	}
 
 	old_lc = *lc;
-	if (cmd->autoneg == AUTONEG_DISABLE) {
-		cap = speed_to_caps(speed);
+	if (base->autoneg == AUTONEG_DISABLE) {
+		fw_caps = speed_to_fw_caps(base->speed);
 
-		if (!(lc->supported & cap))
+		if (!(lc->supported & fw_caps))
 			return -EINVAL;
-		lc->requested_speed = cap;
+		lc->requested_speed = fw_caps;
 		lc->advertising = 0;
 	} else {
-		cap = to_fw_linkcaps(cmd->advertising);
-		if (!(lc->supported & cap))
+		fw_caps =
+			lmm_to_fw_caps(link_ksettings->link_modes.advertising);
+
+		if (!(lc->supported & fw_caps))
 			return -EINVAL;
 		lc->requested_speed = 0;
-		lc->advertising = cap | FW_PORT_CAP_ANEG;
+		lc->advertising = fw_caps | FW_PORT_CAP_ANEG;
 	}
-	lc->autoneg = cmd->autoneg;
+	lc->autoneg = base->autoneg;
 
 	/* If the firmware rejects the Link Configuration request, back out
 	 * the changes and report the error.
 	 */
-	ret = t4_link_l1cfg(p->adapter, p->adapter->mbox, p->tx_chan, lc);
+	ret = t4_link_l1cfg(pi->adapter, pi->adapter->mbox, pi->tx_chan, lc);
 	if (ret)
 		*lc = old_lc;
 
@@ -1093,8 +1208,8 @@ static int get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *info,
 }
 
 static const struct ethtool_ops cxgb_ethtool_ops = {
-	.get_settings      = get_settings,
-	.set_settings      = set_settings,
+	.get_link_ksettings = get_link_ksettings,
+	.set_link_ksettings = set_link_ksettings,
 	.get_drvinfo       = get_drvinfo,
 	.get_msglevel      = get_msglevel,
 	.set_msglevel      = set_msglevel,
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
index 477db477b133..c45de49dc963 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
@@ -64,6 +64,7 @@
 #include <net/bonding.h>
 #include <net/addrconf.h>
 #include <asm/uaccess.h>
+#include <linux/crash_dump.h>
 
 #include "cxgb4.h"
 #include "t4_regs.h"
@@ -206,7 +207,7 @@ static int rx_dma_offset = 2;
 static unsigned int num_vf[NUM_OF_PF_WITH_SRIOV];
 
 module_param_array(num_vf, uint, NULL, 0644);
-MODULE_PARM_DESC(num_vf, "number of VFs for each of PFs 0-3");
+MODULE_PARM_DESC(num_vf, "number of VFs for each of PFs 0-3, deprecated parameter - please use the pci sysfs interface.");
 #endif
 
 /* TX Queue select used to determine what algorithm to use for selecting TX
@@ -460,11 +461,8 @@ static int set_rxmode(struct net_device *dev, int mtu, bool sleep_ok)
 	struct port_info *pi = netdev_priv(dev);
 	struct adapter *adapter = pi->adapter;
 
-	if (!(dev->flags & IFF_PROMISC)) {
-		__dev_uc_sync(dev, cxgb4_mac_sync, cxgb4_mac_unsync);
-		if (!(dev->flags & IFF_ALLMULTI))
-			__dev_mc_sync(dev, cxgb4_mac_sync, cxgb4_mac_unsync);
-	}
+	__dev_uc_sync(dev, cxgb4_mac_sync, cxgb4_mac_unsync);
+	__dev_mc_sync(dev, cxgb4_mac_sync, cxgb4_mac_unsync);
 
 	return t4_set_rxmode(adapter, adapter->mbox, pi->viid, mtu,
 			     (dev->flags & IFF_PROMISC) ? 1 : 0,
@@ -3735,7 +3733,8 @@ static int adap_init0(struct adapter *adap)
 		return ret;
 
 	/* Contact FW, advertising Master capability */
-	ret = t4_fw_hello(adap, adap->mbox, adap->mbox, MASTER_MAY, &state);
+	ret = t4_fw_hello(adap, adap->mbox, adap->mbox,
+			  is_kdump_kernel() ? MASTER_MUST : MASTER_MAY, &state);
 	if (ret < 0) {
 		dev_err(adap->pdev_dev, "could not connect to FW, error %d\n",
 			ret);
@@ -4366,6 +4365,11 @@ static void cfg_queues(struct adapter *adap)
 	if (q10g > netif_get_num_default_rss_queues())
 		q10g = netif_get_num_default_rss_queues();
 
+	/* Reduce memory usage in kdump environment, disable all offload.
+	 */
+	if (is_kdump_kernel())
+		adap->params.offload = 0;
+
 	for_each_port(adap, i) {
 		struct port_info *pi = adap2pinfo(adap, i);
 
@@ -4829,6 +4833,60 @@ static int get_chip_type(struct pci_dev *pdev, u32 pl_rev)
 	return -EINVAL;
 }
 
+#ifdef CONFIG_PCI_IOV
+static int cxgb4_iov_configure(struct pci_dev *pdev, int num_vfs)
+{
+	int err = 0;
+	int current_vfs = pci_num_vf(pdev);
+	u32 pcie_fw;
+	void __iomem *regs;
+
+	regs = pci_ioremap_bar(pdev, 0);
+	if (!regs) {
+		dev_err(&pdev->dev, "cannot map device registers\n");
+		return -ENOMEM;
+	}
+
+	pcie_fw = readl(regs + PCIE_FW_A);
+	iounmap(regs);
+	/* Check if cxgb4 is the MASTER and fw is initialized */
+	if (!(pcie_fw & PCIE_FW_INIT_F) ||
+	    !(pcie_fw & PCIE_FW_MASTER_VLD_F) ||
+	    PCIE_FW_MASTER_G(pcie_fw) != 4) {
+		dev_warn(&pdev->dev,
+			 "cxgb4 driver needs to be MASTER to support SRIOV\n");
+		return -EOPNOTSUPP;
+	}
+
+	/* If any of the VF's is already assigned to Guest OS, then
+	 * SRIOV for the same cannot be modified
+	 */
+	if (current_vfs && pci_vfs_assigned(pdev)) {
+		dev_err(&pdev->dev,
+			"Cannot modify SR-IOV while VFs are assigned\n");
+		num_vfs = current_vfs;
+		return num_vfs;
+	}
+
+	/* Disable SRIOV when zero is passed.
+	 * One needs to disable SRIOV before modifying it, else
+	 * stack throws the below warning:
+	 * " 'n' VFs already enabled. Disable before enabling 'm' VFs."
+	 */
+	if (!num_vfs) {
+		pci_disable_sriov(pdev);
+		return num_vfs;
+	}
+
+	if (num_vfs != current_vfs) {
+		err = pci_enable_sriov(pdev, num_vfs);
+		if (err)
+			return err;
+	}
+	return num_vfs;
+}
+#endif
+
 static int init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 {
 	int func, i, err, s_qpp, qpp, num_seg;
@@ -5162,11 +5220,16 @@ static int init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 
 sriov:
 #ifdef CONFIG_PCI_IOV
-	if (func < ARRAY_SIZE(num_vf) && num_vf[func] > 0)
+	if (func < ARRAY_SIZE(num_vf) && num_vf[func] > 0) {
+		dev_warn(&pdev->dev,
+			 "Enabling SR-IOV VFs using the num_vf module "
+			 "parameter is deprecated - please use the pci sysfs "
+			 "interface instead.\n");
 		if (pci_enable_sriov(pdev, num_vf[func]) == 0)
 			dev_info(&pdev->dev,
 				 "instantiated %u virtual functions\n",
 				 num_vf[func]);
+	}
 #endif
 	return 0;
 
@@ -5259,6 +5322,9 @@ static struct pci_driver cxgb4_driver = {
 	.probe    = init_one,
 	.remove   = remove_one,
 	.shutdown = remove_one,
+#ifdef CONFIG_PCI_IOV
+	.sriov_configure = cxgb4_iov_configure,
+#endif
 	.err_handler = &cxgb4_eeh,
 };
 
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_ppm.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_ppm.c
deleted file mode 100644
index d88a7a7b2400..000000000000
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_ppm.c
+++ /dev/null
@@ -1,464 +0,0 @@
-/*
- * cxgb4_ppm.c: Chelsio common library for T4/T5 iSCSI PagePod Manager
- *
- * Copyright (c) 2016 Chelsio Communications, Inc. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * Written by: Karen Xie (kxie@chelsio.com)
- */
-
-#include <linux/kernel.h>
-#include <linux/version.h>
-#include <linux/module.h>
-#include <linux/errno.h>
-#include <linux/types.h>
-#include <linux/debugfs.h>
-#include <linux/export.h>
-#include <linux/list.h>
-#include <linux/skbuff.h>
-#include <linux/pci.h>
-#include <linux/scatterlist.h>
-
-#include "cxgb4_ppm.h"
-
-/* Direct Data Placement -
- * Directly place the iSCSI Data-In or Data-Out PDU's payload into
- * pre-posted final destination host-memory buffers based on the
- * Initiator Task Tag (ITT) in Data-In or Target Task Tag (TTT)
- * in Data-Out PDUs. The host memory address is programmed into
- * h/w in the format of pagepod entries. The location of the
- * pagepod entry is encoded into ddp tag which is used as the base
- * for ITT/TTT.
- */
-
-/* Direct-Data Placement page size adjustment
- */
-int cxgbi_ppm_find_page_index(struct cxgbi_ppm *ppm, unsigned long pgsz)
-{
-	struct cxgbi_tag_format *tformat = &ppm->tformat;
-	int i;
-
-	for (i = 0; i < DDP_PGIDX_MAX; i++) {
-		if (pgsz == 1UL << (DDP_PGSZ_BASE_SHIFT +
-					 tformat->pgsz_order[i])) {
-			pr_debug("%s: %s ppm, pgsz %lu -> idx %d.\n",
-				 __func__, ppm->ndev->name, pgsz, i);
-			return i;
-		}
-	}
-	pr_info("ippm: ddp page size %lu not supported.\n", pgsz);
-	return DDP_PGIDX_MAX;
-}
-
-/* DDP setup & teardown
- */
-static int ppm_find_unused_entries(unsigned long *bmap,
-				   unsigned int max_ppods,
-				   unsigned int start,
-				   unsigned int nr,
-				   unsigned int align_mask)
-{
-	unsigned long i;
-
-	i = bitmap_find_next_zero_area(bmap, max_ppods, start, nr, align_mask);
-
-	if (unlikely(i >= max_ppods) && (start > nr))
-		i = bitmap_find_next_zero_area(bmap, max_ppods, 0, start - 1,
-					       align_mask);
-	if (unlikely(i >= max_ppods))
-		return -ENOSPC;
-
-	bitmap_set(bmap, i, nr);
-	return (int)i;
-}
-
-static void ppm_mark_entries(struct cxgbi_ppm *ppm, int i, int count,
-			     unsigned long caller_data)
-{
-	struct cxgbi_ppod_data *pdata = ppm->ppod_data + i;
-
-	pdata->caller_data = caller_data;
-	pdata->npods = count;
-
-	if (pdata->color == ((1 << PPOD_IDX_SHIFT) - 1))
-		pdata->color = 0;
-	else
-		pdata->color++;
-}
-
-static int ppm_get_cpu_entries(struct cxgbi_ppm *ppm, unsigned int count,
-			       unsigned long caller_data)
-{
-	struct cxgbi_ppm_pool *pool;
-	unsigned int cpu;
-	int i;
-
-	cpu = get_cpu();
-	pool = per_cpu_ptr(ppm->pool, cpu);
-	spin_lock_bh(&pool->lock);
-	put_cpu();
-
-	i = ppm_find_unused_entries(pool->bmap, ppm->pool_index_max,
-				    pool->next, count, 0);
-	if (i < 0) {
-		pool->next = 0;
-		spin_unlock_bh(&pool->lock);
-		return -ENOSPC;
-	}
-
-	pool->next = i + count;
-	if (pool->next >= ppm->pool_index_max)
-		pool->next = 0;
-
-	spin_unlock_bh(&pool->lock);
-
-	pr_debug("%s: cpu %u, idx %d + %d (%d), next %u.\n",
-		 __func__, cpu, i, count, i + cpu * ppm->pool_index_max,
-		pool->next);
-
-	i += cpu * ppm->pool_index_max;
-	ppm_mark_entries(ppm, i, count, caller_data);
-
-	return i;
-}
-
-static int ppm_get_entries(struct cxgbi_ppm *ppm, unsigned int count,
-			   unsigned long caller_data)
-{
-	int i;
-
-	spin_lock_bh(&ppm->map_lock);
-	i = ppm_find_unused_entries(ppm->ppod_bmap, ppm->bmap_index_max,
-				    ppm->next, count, 0);
-	if (i < 0) {
-		ppm->next = 0;
-		spin_unlock_bh(&ppm->map_lock);
-		pr_debug("ippm: NO suitable entries %u available.\n",
-			 count);
-		return -ENOSPC;
-	}
-
-	ppm->next = i + count;
-	if (ppm->next >= ppm->bmap_index_max)
-		ppm->next = 0;
-
-	spin_unlock_bh(&ppm->map_lock);
-
-	pr_debug("%s: idx %d + %d (%d), next %u, caller_data 0x%lx.\n",
-		 __func__, i, count, i + ppm->pool_rsvd, ppm->next,
-		 caller_data);
-
-	i += ppm->pool_rsvd;
-	ppm_mark_entries(ppm, i, count, caller_data);
-
-	return i;
-}
-
-static void ppm_unmark_entries(struct cxgbi_ppm *ppm, int i, int count)
-{
-	pr_debug("%s: idx %d + %d.\n", __func__, i, count);
-
-	if (i < ppm->pool_rsvd) {
-		unsigned int cpu;
-		struct cxgbi_ppm_pool *pool;
-
-		cpu = i / ppm->pool_index_max;
-		i %= ppm->pool_index_max;
-
-		pool = per_cpu_ptr(ppm->pool, cpu);
-		spin_lock_bh(&pool->lock);
-		bitmap_clear(pool->bmap, i, count);
-
-		if (i < pool->next)
-			pool->next = i;
-		spin_unlock_bh(&pool->lock);
-
-		pr_debug("%s: cpu %u, idx %d, next %u.\n",
-			 __func__, cpu, i, pool->next);
-	} else {
-		spin_lock_bh(&ppm->map_lock);
-
-		i -= ppm->pool_rsvd;
-		bitmap_clear(ppm->ppod_bmap, i, count);
-
-		if (i < ppm->next)
-			ppm->next = i;
-		spin_unlock_bh(&ppm->map_lock);
-
-		pr_debug("%s: idx %d, next %u.\n", __func__, i, ppm->next);
-	}
-}
-
-void cxgbi_ppm_ppod_release(struct cxgbi_ppm *ppm, u32 idx)
-{
-	struct cxgbi_ppod_data *pdata;
-
-	if (idx >= ppm->ppmax) {
-		pr_warn("ippm: idx too big %u > %u.\n", idx, ppm->ppmax);
-		return;
-	}
-
-	pdata = ppm->ppod_data + idx;
-	if (!pdata->npods) {
-		pr_warn("ippm: idx %u, npods 0.\n", idx);
-		return;
-	}
-
-	pr_debug("release idx %u, npods %u.\n", idx, pdata->npods);
-	ppm_unmark_entries(ppm, idx, pdata->npods);
-}
-EXPORT_SYMBOL(cxgbi_ppm_ppod_release);
-
-int cxgbi_ppm_ppods_reserve(struct cxgbi_ppm *ppm, unsigned short nr_pages,
-			    u32 per_tag_pg_idx, u32 *ppod_idx,
-			    u32 *ddp_tag, unsigned long caller_data)
-{
-	struct cxgbi_ppod_data *pdata;
-	unsigned int npods;
-	int idx = -1;
-	unsigned int hwidx;
-	u32 tag;
-
-	npods = (nr_pages + PPOD_PAGES_MAX - 1) >> PPOD_PAGES_SHIFT;
-	if (!npods) {
-		pr_warn("%s: pages %u -> npods %u, full.\n",
-			__func__, nr_pages, npods);
-		return -EINVAL;
-	}
-
-	/* grab from cpu pool first */
-	idx = ppm_get_cpu_entries(ppm, npods, caller_data);
-	/* try the general pool */
-	if (idx < 0)
-		idx = ppm_get_entries(ppm, npods, caller_data);
-	if (idx < 0) {
-		pr_debug("ippm: pages %u, nospc %u, nxt %u, 0x%lx.\n",
-			 nr_pages, npods, ppm->next, caller_data);
-		return idx;
-	}
-
-	pdata = ppm->ppod_data + idx;
-	hwidx = ppm->base_idx + idx;
-
-	tag = cxgbi_ppm_make_ddp_tag(hwidx, pdata->color);
-
-	if (per_tag_pg_idx)
-		tag |= (per_tag_pg_idx << 30) & 0xC0000000;
-
-	*ppod_idx = idx;
-	*ddp_tag = tag;
-
-	pr_debug("ippm: sg %u, tag 0x%x(%u,%u), data 0x%lx.\n",
-		 nr_pages, tag, idx, npods, caller_data);
-
-	return npods;
-}
-EXPORT_SYMBOL(cxgbi_ppm_ppods_reserve);
-
-void cxgbi_ppm_make_ppod_hdr(struct cxgbi_ppm *ppm, u32 tag,
-			     unsigned int tid, unsigned int offset,
-			     unsigned int length,
-			     struct cxgbi_pagepod_hdr *hdr)
-{
-	/* The ddp tag in pagepod should be with bit 31:30 set to 0.
-	 * The ddp Tag on the wire should be with non-zero 31:30 to the peer
-	 */
-	tag &= 0x3FFFFFFF;
-
-	hdr->vld_tid = htonl(PPOD_VALID_FLAG | PPOD_TID(tid));
-
-	hdr->rsvd = 0;
-	hdr->pgsz_tag_clr = htonl(tag & ppm->tformat.idx_clr_mask);
-	hdr->max_offset = htonl(length);
-	hdr->page_offset = htonl(offset);
-
-	pr_debug("ippm: tag 0x%x, tid 0x%x, xfer %u, off %u.\n",
-		 tag, tid, length, offset);
-}
-EXPORT_SYMBOL(cxgbi_ppm_make_ppod_hdr);
-
-static void ppm_free(struct cxgbi_ppm *ppm)
-{
-	vfree(ppm);
-}
-
-static void ppm_destroy(struct kref *kref)
-{
-	struct cxgbi_ppm *ppm = container_of(kref,
-					     struct cxgbi_ppm,
-					     refcnt);
-	pr_info("ippm: kref 0, destroy %s ppm 0x%p.\n",
-		ppm->ndev->name, ppm);
-
-	*ppm->ppm_pp = NULL;
-
-	free_percpu(ppm->pool);
-	ppm_free(ppm);
-}
-
-int cxgbi_ppm_release(struct cxgbi_ppm *ppm)
-{
-	if (ppm) {
-		int rv;
-
-		rv = kref_put(&ppm->refcnt, ppm_destroy);
-		return rv;
-	}
-	return 1;
-}
-
-static struct cxgbi_ppm_pool *ppm_alloc_cpu_pool(unsigned int *total,
-						 unsigned int *pcpu_ppmax)
-{
-	struct cxgbi_ppm_pool *pools;
-	unsigned int ppmax = (*total) / num_possible_cpus();
-	unsigned int max = (PCPU_MIN_UNIT_SIZE - sizeof(*pools)) << 3;
-	unsigned int bmap;
-	unsigned int alloc_sz;
-	unsigned int count = 0;
-	unsigned int cpu;
-
-	/* make sure per cpu pool fits into PCPU_MIN_UNIT_SIZE */
-	if (ppmax > max)
-		ppmax = max;
-
-	/* pool size must be multiple of unsigned long */
-	bmap = BITS_TO_LONGS(ppmax);
-	ppmax = (bmap * sizeof(unsigned long)) << 3;
-
-	alloc_sz = sizeof(*pools) + sizeof(unsigned long) * bmap;
-	pools = __alloc_percpu(alloc_sz, __alignof__(struct cxgbi_ppm_pool));
-
-	if (!pools)
-		return NULL;
-
-	for_each_possible_cpu(cpu) {
-		struct cxgbi_ppm_pool *ppool = per_cpu_ptr(pools, cpu);
-
-		memset(ppool, 0, alloc_sz);
-		spin_lock_init(&ppool->lock);
-		count += ppmax;
-	}
-
-	*total = count;
-	*pcpu_ppmax = ppmax;
-
-	return pools;
-}
-
-int cxgbi_ppm_init(void **ppm_pp, struct net_device *ndev,
-		   struct pci_dev *pdev, void *lldev,
-		   struct cxgbi_tag_format *tformat,
-		   unsigned int ppmax,
-		   unsigned int llimit,
-		   unsigned int start,
-		   unsigned int reserve_factor)
-{
-	struct cxgbi_ppm *ppm = (struct cxgbi_ppm *)(*ppm_pp);
-	struct cxgbi_ppm_pool *pool = NULL;
-	unsigned int ppmax_pool = 0;
-	unsigned int pool_index_max = 0;
-	unsigned int alloc_sz;
-	unsigned int ppod_bmap_size;
-
-	if (ppm) {
-		pr_info("ippm: %s, ppm 0x%p,0x%p already initialized, %u/%u.\n",
-			ndev->name, ppm_pp, ppm, ppm->ppmax, ppmax);
-		kref_get(&ppm->refcnt);
-		return 1;
-	}
-
-	if (reserve_factor) {
-		ppmax_pool = ppmax / reserve_factor;
-		pool = ppm_alloc_cpu_pool(&ppmax_pool, &pool_index_max);
-
-		pr_debug("%s: ppmax %u, cpu total %u, per cpu %u.\n",
-			 ndev->name, ppmax, ppmax_pool, pool_index_max);
-	}
-
-	ppod_bmap_size = BITS_TO_LONGS(ppmax - ppmax_pool);
-	alloc_sz = sizeof(struct cxgbi_ppm) +
-			ppmax * (sizeof(struct cxgbi_ppod_data)) +
-			ppod_bmap_size * sizeof(unsigned long);
-
-	ppm = vmalloc(alloc_sz);
-	if (!ppm)
-		goto release_ppm_pool;
-
-	memset(ppm, 0, alloc_sz);
-
-	ppm->ppod_bmap = (unsigned long *)(&ppm->ppod_data[ppmax]);
-
-	if ((ppod_bmap_size >> 3) > (ppmax - ppmax_pool)) {
-		unsigned int start = ppmax - ppmax_pool;
-		unsigned int end = ppod_bmap_size >> 3;
-
-		bitmap_set(ppm->ppod_bmap, ppmax, end - start);
-		pr_info("%s: %u - %u < %u * 8, mask extra bits %u, %u.\n",
-			__func__, ppmax, ppmax_pool, ppod_bmap_size, start,
-			end);
-	}
-
-	spin_lock_init(&ppm->map_lock);
-	kref_init(&ppm->refcnt);
-
-	memcpy(&ppm->tformat, tformat, sizeof(struct cxgbi_tag_format));
-
-	ppm->ppm_pp = ppm_pp;
-	ppm->ndev = ndev;
-	ppm->pdev = pdev;
-	ppm->lldev = lldev;
-	ppm->ppmax = ppmax;
-	ppm->next = 0;
-	ppm->llimit = llimit;
-	ppm->base_idx = start > llimit ?
-			(start - llimit + 1) >> PPOD_SIZE_SHIFT : 0;
-	ppm->bmap_index_max = ppmax - ppmax_pool;
-
-	ppm->pool = pool;
-	ppm->pool_rsvd = ppmax_pool;
-	ppm->pool_index_max = pool_index_max;
-
-	/* check one more time */
-	if (*ppm_pp) {
-		ppm_free(ppm);
-		ppm = (struct cxgbi_ppm *)(*ppm_pp);
-
-		pr_info("ippm: %s, ppm 0x%p,0x%p already initialized, %u/%u.\n",
-			ndev->name, ppm_pp, *ppm_pp, ppm->ppmax, ppmax);
-
-		kref_get(&ppm->refcnt);
-		return 1;
-	}
-	*ppm_pp = ppm;
-
-	ppm->tformat.pgsz_idx_dflt = cxgbi_ppm_find_page_index(ppm, PAGE_SIZE);
-
-	pr_info("ippm %s: ppm 0x%p, 0x%p, base %u/%u, pg %lu,%u, rsvd %u,%u.\n",
-		ndev->name, ppm_pp, ppm, ppm->base_idx, ppm->ppmax, PAGE_SIZE,
-		ppm->tformat.pgsz_idx_dflt, ppm->pool_rsvd,
-		ppm->pool_index_max);
-
-	return 0;
-
-release_ppm_pool:
-	free_percpu(pool);
-	return -ENOMEM;
-}
-EXPORT_SYMBOL(cxgbi_ppm_init);
-