[dpdk-dev] [PATCH v2 7/7] cxgbe: rework and use 32-bit port capability

[Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>]

The new code uses the new 32-bit Port Capabilities exclusively and
only translates to/from the old 16-bit Port Capabilities at the last
point possible when talking to older Firmware.

For the old versus new Firmware issue, we use the new FW_PARAMS_CMD[PFVF,
CAPS32] command to tell the Firmware that we want Asynchronous Port Status
updates to use the new 32-bit version of the Port Information message.  If
we get an error, we know we're dealing with older Firmware, and if not,
we'll start getting th new 32-bit Port Capability message formats.

Also, refactor t4_handle_fw_rpl() to handle new 32-bit Port Capability
replies from firmware in t4_handle_get_port_info().

Original work by Surendra Mobiya <surendra@chelsio.com>

Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: Kumar Sanghvi <kumaras@chelsio.com>
---
v2:
- No changes.

 doc/guides/nics/cxgbe.rst               |  10 +-
 drivers/net/cxgbe/base/common.h         |   8 +
 drivers/net/cxgbe/base/t4_hw.c          | 356 +++++++++++++++++++++++---------
 drivers/net/cxgbe/base/t4fw_interface.h |  47 ++++-
 4 files changed, 323 insertions(+), 98 deletions(-)

diff --git a/doc/guides/nics/cxgbe.rst b/doc/guides/nics/cxgbe.rst
index 6126167c5..c4afe8678 100644
--- a/doc/guides/nics/cxgbe.rst
+++ b/doc/guides/nics/cxgbe.rst
@@ -82,7 +82,7 @@ Supported Chelsio T6 NICs
 Prerequisites
 -------------
 
-- Requires firmware version **1.16.43.0** and higher. Visit
+- Requires firmware version **1.17.14.0** and higher. Visit
   `Chelsio Download Center <http://service.chelsio.com>`_ to get latest firmware
   bundled with the latest Chelsio Unified Wire package.
 
@@ -210,7 +210,7 @@ Unified Wire package for Linux operating system are as follows:
 
    .. code-block:: console
 
-      firmware-version: 1.16.43.0, TP 0.1.4.9
+      firmware-version: 1.17.14.0, TP 0.1.4.9
 
 Running testpmd
 ~~~~~~~~~~~~~~~
@@ -268,7 +268,7 @@ devices managed by librte_pmd_cxgbe in Linux operating system.
       EAL:   PCI memory mapped at 0x7fd7c0200000
       EAL:   PCI memory mapped at 0x7fd77cdfd000
       EAL:   PCI memory mapped at 0x7fd7c10b7000
-      PMD: rte_cxgbe_pmd: fw: 1.16.43.0, TP: 0.1.4.9
+      PMD: rte_cxgbe_pmd: fw: 1.17.14.0, TP: 0.1.4.9
       PMD: rte_cxgbe_pmd: Coming up as MASTER: Initializing adapter
       Interactive-mode selected
       Configuring Port 0 (socket 0)
@@ -352,7 +352,7 @@ Unified Wire package for FreeBSD operating system are as follows:
 
    .. code-block:: console
 
-      dev.t5nex.0.firmware_version: 1.16.43.0
+      dev.t5nex.0.firmware_version: 1.17.14.0
 
 Running testpmd
 ~~~~~~~~~~~~~~~
@@ -470,7 +470,7 @@ devices managed by librte_pmd_cxgbe in FreeBSD operating system.
       EAL:   PCI memory mapped at 0x8007ec000
       EAL:   PCI memory mapped at 0x842800000
       EAL:   PCI memory mapped at 0x80086c000
-      PMD: rte_cxgbe_pmd: fw: 1.16.43.0, TP: 0.1.4.9
+      PMD: rte_cxgbe_pmd: fw: 1.17.14.0, TP: 0.1.4.9
       PMD: rte_cxgbe_pmd: Coming up as MASTER: Initializing adapter
       Interactive-mode selected
       Configuring Port 0 (socket 0)
diff --git a/drivers/net/cxgbe/base/common.h b/drivers/net/cxgbe/base/common.h
index 98886288c..365e9e692 100644
--- a/drivers/net/cxgbe/base/common.h
+++ b/drivers/net/cxgbe/base/common.h
@@ -239,6 +239,7 @@ struct adapter_params {
 	struct arch_specific_params arch; /* chip specific params */
 
 	bool ulptx_memwrite_dsgl;          /* use of T5 DSGL allowed */
+	u8 fw_caps_support;		  /* 32-bit Port Capabilities */
 };
 
 /* Firmware Port Capabilities types.
@@ -246,6 +247,12 @@ struct adapter_params {
 typedef u16 fw_port_cap16_t;    /* 16-bit Port Capabilities integral value */
 typedef u32 fw_port_cap32_t;    /* 32-bit Port Capabilities integral value */
 
+enum fw_caps {
+	FW_CAPS_UNKNOWN = 0,    /* 0'ed out initial state */
+	FW_CAPS16       = 1,    /* old Firmware: 16-bit Port Capabilities */
+	FW_CAPS32       = 2,    /* new Firmware: 32-bit Port Capabilities */
+};
+
 struct link_config {
 	fw_port_cap32_t pcaps;          /* link capabilities */
 	fw_port_cap32_t acaps;          /* advertised capabilities */
@@ -265,6 +272,7 @@ struct link_config {
 	unsigned char autoneg;          /* autonegotiating? */
 
 	unsigned char link_ok;          /* link up? */
+	unsigned char link_down_rc;     /* link down reason */
 };
 
 #include "adapter.h"
diff --git a/drivers/net/cxgbe/base/t4_hw.c b/drivers/net/cxgbe/base/t4_hw.c
index 46b296a9d..c66e2a6f7 100644
--- a/drivers/net/cxgbe/base/t4_hw.c
+++ b/drivers/net/cxgbe/base/t4_hw.c
@@ -2791,6 +2791,43 @@ void t4_dump_version_info(struct adapter *adapter)
 
 #define ADVERT_MASK (V_FW_PORT_CAP32_SPEED(M_FW_PORT_CAP32_SPEED) | \
 		     FW_PORT_CAP32_ANEG)
+/**
+ *     fwcaps16_to_caps32 - convert 16-bit Port Capabilities to 32-bits
+ *     @caps16: a 16-bit Port Capabilities value
+ *
+ *     Returns the equivalent 32-bit Port Capabilities value.
+ */
+static fw_port_cap32_t fwcaps16_to_caps32(fw_port_cap16_t caps16)
+{
+	fw_port_cap32_t caps32 = 0;
+
+#define CAP16_TO_CAP32(__cap) \
+	do { \
+		if (caps16 & FW_PORT_CAP_##__cap) \
+			caps32 |= FW_PORT_CAP32_##__cap; \
+	} while (0)
+
+	CAP16_TO_CAP32(SPEED_100M);
+	CAP16_TO_CAP32(SPEED_1G);
+	CAP16_TO_CAP32(SPEED_25G);
+	CAP16_TO_CAP32(SPEED_10G);
+	CAP16_TO_CAP32(SPEED_40G);
+	CAP16_TO_CAP32(SPEED_100G);
+	CAP16_TO_CAP32(FC_RX);
+	CAP16_TO_CAP32(FC_TX);
+	CAP16_TO_CAP32(ANEG);
+	CAP16_TO_CAP32(MDIX);
+	CAP16_TO_CAP32(MDIAUTO);
+	CAP16_TO_CAP32(FEC_RS);
+	CAP16_TO_CAP32(FEC_BASER_RS);
+	CAP16_TO_CAP32(802_3_PAUSE);
+	CAP16_TO_CAP32(802_3_ASM_DIR);
+
+#undef CAP16_TO_CAP32
+
+	return caps32;
+}
+
 /**
  *     fwcaps32_to_caps16 - convert 32-bit Port Capabilities to 16-bits
  *     @caps32: a 32-bit Port Capabilities value
@@ -2900,6 +2937,7 @@ int t4_link_l1cfg(struct adapter *adap, unsigned int mbox, unsigned int port,
 		  struct link_config *lc)
 {
 	unsigned int fw_mdi = V_FW_PORT_CAP32_MDI(FW_PORT_CAP32_MDI_AUTO);
+	unsigned int fw_caps = adap->params.fw_caps_support;
 	fw_port_cap32_t fw_fc, cc_fec, fw_fec, rcap;
 	struct fw_port_cmd cmd;
 
@@ -2941,9 +2979,15 @@ int t4_link_l1cfg(struct adapter *adap, unsigned int mbox, unsigned int port,
 				       F_FW_CMD_REQUEST | F_FW_CMD_EXEC |
 				       V_FW_PORT_CMD_PORTID(port));
 	cmd.action_to_len16 =
-		cpu_to_be32(V_FW_PORT_CMD_ACTION(FW_PORT_ACTION_L1_CFG) |
+		cpu_to_be32(V_FW_PORT_CMD_ACTION(fw_caps == FW_CAPS16 ?
+						 FW_PORT_ACTION_L1_CFG :
+						 FW_PORT_ACTION_L1_CFG32) |
 			    FW_LEN16(cmd));
-	cmd.u.l1cfg.rcap = cpu_to_be32(fwcaps32_to_caps16(rcap));
+
+	if (fw_caps == FW_CAPS16)
+		cmd.u.l1cfg.rcap = cpu_to_be32(fwcaps32_to_caps16(rcap));
+	else
+		cmd.u.l1cfg32.rcap32 = cpu_to_be32(rcap);
 
 	return t4_wr_mbox(adap, mbox, &cmd, sizeof(cmd), NULL);
 }
@@ -4278,6 +4322,31 @@ int t4_eth_eq_free(struct adapter *adap, unsigned int mbox, unsigned int pf,
 	return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
 }
 
+/**
+ * t4_link_down_rc_str - return a string for a Link Down Reason Code
+ * @link_down_rc: Link Down Reason Code
+ *
+ * Returns a string representation of the Link Down Reason Code.
+ */
+static const char *t4_link_down_rc_str(unsigned char link_down_rc)
+{
+	static const char * const reason[] = {
+		"Link Down",
+		"Remote Fault",
+		"Auto-negotiation Failure",
+		"Reserved",
+		"Insufficient Airflow",
+		"Unable To Determine Reason",
+		"No RX Signal Detected",
+		"Reserved",
+	};
+
+	if (link_down_rc >= ARRAY_SIZE(reason))
+		return "Bad Reason Code";
+
+	return reason[link_down_rc];
+}
+
 /* Return the highest speed set in the port capabilities, in Mb/s. */
 static unsigned int fwcap_to_speed(fw_port_cap32_t caps)
 {
@@ -4300,6 +4369,122 @@ static unsigned int fwcap_to_speed(fw_port_cap32_t caps)
 	return 0;
 }
 
+/**
+ * t4_handle_get_port_info - process a FW reply message
+ * @pi: the port info
+ * @rpl: start of the FW message
+ *
+ * Processes a GET_PORT_INFO FW reply message.
+ */
+static void t4_handle_get_port_info(struct port_info *pi, const __be64 *rpl)
+{
+	const struct fw_port_cmd *cmd = (const void *)rpl;
+	int action = G_FW_PORT_CMD_ACTION(be32_to_cpu(cmd->action_to_len16));
+	fw_port_cap32_t pcaps, acaps, linkattr;
+	struct link_config *lc = &pi->link_cfg;
+	struct adapter *adapter = pi->adapter;
+	enum fw_port_module_type mod_type;
+	enum fw_port_type port_type;
+	unsigned int speed, fc, fec;
+	int link_ok, linkdnrc;
+
+	/* Extract the various fields from the Port Information message.
+	 */
+	switch (action) {
+	case FW_PORT_ACTION_GET_PORT_INFO: {
+		u32 lstatus = be32_to_cpu(cmd->u.info.lstatus_to_modtype);
+
+		link_ok = (lstatus & F_FW_PORT_CMD_LSTATUS) != 0;
+		linkdnrc = G_FW_PORT_CMD_LINKDNRC(lstatus);
+		port_type = G_FW_PORT_CMD_PTYPE(lstatus);
+		mod_type = G_FW_PORT_CMD_MODTYPE(lstatus);
+		pcaps = fwcaps16_to_caps32(be16_to_cpu(cmd->u.info.pcap));
+		acaps = fwcaps16_to_caps32(be16_to_cpu(cmd->u.info.acap));
+
+		/* Unfortunately the format of the Link Status in the old
+		 * 16-bit Port Information message isn't the same as the
+		 * 16-bit Port Capabilities bitfield used everywhere else ...
+		 */
+		linkattr = 0;
+		if (lstatus & F_FW_PORT_CMD_RXPAUSE)
+			linkattr |= FW_PORT_CAP32_FC_RX;
+		if (lstatus & F_FW_PORT_CMD_TXPAUSE)
+			linkattr |= FW_PORT_CAP32_FC_TX;
+		if (lstatus & V_FW_PORT_CMD_LSPEED(FW_PORT_CAP_SPEED_100M))
+			linkattr |= FW_PORT_CAP32_SPEED_100M;
+		if (lstatus & V_FW_PORT_CMD_LSPEED(FW_PORT_CAP_SPEED_1G))
+			linkattr |= FW_PORT_CAP32_SPEED_1G;
+		if (lstatus & V_FW_PORT_CMD_LSPEED(FW_PORT_CAP_SPEED_10G))
+			linkattr |= FW_PORT_CAP32_SPEED_10G;
+		if (lstatus & V_FW_PORT_CMD_LSPEED(FW_PORT_CAP_SPEED_25G))
+			linkattr |= FW_PORT_CAP32_SPEED_25G;
+		if (lstatus & V_FW_PORT_CMD_LSPEED(FW_PORT_CAP_SPEED_40G))
+			linkattr |= FW_PORT_CAP32_SPEED_40G;
+		if (lstatus & V_FW_PORT_CMD_LSPEED(FW_PORT_CAP_SPEED_100G))
+			linkattr |= FW_PORT_CAP32_SPEED_100G;
+
+		break;
+		}
+
+	case FW_PORT_ACTION_GET_PORT_INFO32: {
+		u32 lstatus32 =
+			be32_to_cpu(cmd->u.info32.lstatus32_to_cbllen32);
+
+		link_ok = (lstatus32 & F_FW_PORT_CMD_LSTATUS32) != 0;
+		linkdnrc = G_FW_PORT_CMD_LINKDNRC32(lstatus32);
+		port_type = G_FW_PORT_CMD_PORTTYPE32(lstatus32);
+		mod_type = G_FW_PORT_CMD_MODTYPE32(lstatus32);
+		pcaps = be32_to_cpu(cmd->u.info32.pcaps32);
+		acaps = be32_to_cpu(cmd->u.info32.acaps32);
+		linkattr = be32_to_cpu(cmd->u.info32.linkattr32);
+		break;
+		}
+
+	default:
+		dev_warn(adapter, "Handle Port Information: Bad Command/Action %#x\n",
+			 be32_to_cpu(cmd->action_to_len16));
+		return;
+	}
+
+	fec = fwcap_to_cc_fec(acaps);
+
+	fc = fwcap_to_cc_pause(linkattr);
+	speed = fwcap_to_speed(linkattr);
+
+	if (mod_type != pi->mod_type) {
+		lc->auto_fec = fec;
+		pi->port_type = port_type;
+		pi->mod_type = mod_type;
+		t4_os_portmod_changed(adapter, pi->port_id);
+	}
+	if (link_ok != lc->link_ok || speed != lc->speed ||
+	    fc != lc->fc || fec != lc->fec) { /* something changed */
+		if (!link_ok && lc->link_ok) {
+			lc->link_down_rc = linkdnrc;
+			dev_warn(adap, "Port %d link down, reason: %s\n",
+				 pi->tx_chan, t4_link_down_rc_str(linkdnrc));
+		}
+		lc->link_ok = link_ok;
+		lc->speed = speed;
+		lc->fc = fc;
+		lc->fec = fec;
+		lc->pcaps = pcaps;
+		lc->acaps = acaps & ADVERT_MASK;
+
+		if (lc->acaps & FW_PORT_CAP32_ANEG) {
+			lc->autoneg = AUTONEG_ENABLE;
+		} else {
+			/* When Autoneg is disabled, user needs to set
+			 * single speed.
+			 * Similar to cxgb4_ethtool.c: set_link_ksettings
+			 */
+			lc->acaps = 0;
+			lc->requested_speed = fwcap_to_speed(acaps);
+			lc->autoneg = AUTONEG_DISABLE;
+		}
+	}
+}
+
 /**
  * t4_handle_fw_rpl - process a FW reply message
  * @adap: the adapter
@@ -4321,83 +4506,21 @@ int t4_handle_fw_rpl(struct adapter *adap, const __be64 *rpl)
 	unsigned int action =
 		G_FW_PORT_CMD_ACTION(be32_to_cpu(p->action_to_len16));
 
-	if (opcode == FW_PORT_CMD && action == FW_PORT_ACTION_GET_PORT_INFO) {
+	if (opcode == FW_PORT_CMD &&
+	    (action == FW_PORT_ACTION_GET_PORT_INFO ||
+	     action == FW_PORT_ACTION_GET_PORT_INFO32)) {
 		/* link/module state change message */
-		unsigned int speed = 0, fc = 0, i;
 		int chan = G_FW_PORT_CMD_PORTID(be32_to_cpu(p->op_to_portid));
 		struct port_info *pi = NULL;
-		struct link_config *lc;
-		u32 stat = be32_to_cpu(p->u.info.lstatus_to_modtype);
-		int link_ok = (stat & F_FW_PORT_CMD_LSTATUS) != 0;
-		u32 mod = G_FW_PORT_CMD_MODTYPE(stat);
-		unsigned int fec;
-
-		fc = fwcap_to_cc_pause(stat);
-		fec = fwcap_to_cc_fec(stat);
-
-		if (stat & V_FW_PORT_CMD_LSPEED(FW_PORT_CAP_SPEED_100M))
-			speed = ETH_SPEED_NUM_100M;
-		else if (stat & V_FW_PORT_CMD_LSPEED(FW_PORT_CAP_SPEED_1G))
-			speed = ETH_SPEED_NUM_1G;
-		else if (stat & V_FW_PORT_CMD_LSPEED(FW_PORT_CAP_SPEED_10G))
-			speed = ETH_SPEED_NUM_10G;
-		else if (stat & V_FW_PORT_CMD_LSPEED(FW_PORT_CAP_SPEED_25G))
-			speed = ETH_SPEED_NUM_25G;
-		else if (stat & V_FW_PORT_CMD_LSPEED(FW_PORT_CAP_SPEED_40G))
-			speed = ETH_SPEED_NUM_40G;
-		else if (stat & V_FW_PORT_CMD_LSPEED(FW_PORT_CAP_SPEED_100G))
-			speed = ETH_SPEED_NUM_100G;
+		int i;
 
 		for_each_port(adap, i) {
 			pi = adap2pinfo(adap, i);
 			if (pi->tx_chan == chan)
 				break;
 		}
-		lc = &pi->link_cfg;
 
-		if (mod != pi->mod_type) {
-			lc->auto_fec = fec;
-			pi->mod_type = mod;
-			t4_os_portmod_changed(adap, i);
-		}
-		if (link_ok != lc->link_ok || speed != lc->speed ||
-		    fc != lc->fc || fec != lc->fec) { /* something changed */
-			if (!link_ok && lc->link_ok) {
-				static const char * const reason[] = {
-					"Link Down",
-					"Remote Fault",
-					"Auto-negotiation Failure",
-					"Reserved",
-					"Insufficient Airflow",
-					"Unable To Determine Reason",
-					"No RX Signal Detected",
-					"Reserved",
-				};
-				unsigned int rc = G_FW_PORT_CMD_LINKDNRC(stat);
-
-				dev_warn(adap, "Port %d link down, reason: %s\n",
-					 chan, reason[rc]);
-			}
-			lc->link_ok = link_ok;
-			lc->speed = speed;
-			lc->fc = fc;
-			lc->fec = fec;
-			lc->pcaps = be16_to_cpu(p->u.info.pcap);
-			lc->acaps = be16_to_cpu(p->u.info.acap) & ADVERT_MASK;
-			if (lc->acaps & FW_PORT_CAP32_ANEG) {
-				lc->autoneg = AUTONEG_ENABLE;
-			} else {
-				/* When Autoneg is disabled, user needs to set
-				 * single speed.
-				 */
-				lc->acaps = 0;
-				lc->requested_speed =
-					be16_to_cpu(p->u.info.acap);
-				lc->requested_speed =
-					fwcap_to_speed(lc->requested_speed);
-				lc->autoneg = AUTONEG_DISABLE;
-			}
-		}
+		t4_handle_get_port_info(pi, rpl);
 	} else {
 		dev_warn(adap, "Unknown firmware reply %d\n", opcode);
 		return -EINVAL;
@@ -4426,8 +4549,8 @@ void t4_reset_link_config(struct adapter *adap, int idx)
  * Initializes the SW state maintained for each link, including the link's
  * capabilities and default speed/flow-control/autonegotiation settings.
  */
-static void init_link_config(struct link_config *lc, unsigned int pcaps,
-			     unsigned int acaps)
+static void init_link_config(struct link_config *lc, fw_port_cap32_t pcaps,
+			     fw_port_cap32_t acaps)
 {
 	lc->pcaps = pcaps;
 	lc->requested_speed = 0;
@@ -4969,46 +5092,95 @@ int t4_init_rss_mode(struct adapter *adap, int mbox)
 
 int t4_port_init(struct adapter *adap, int mbox, int pf, int vf)
 {
-	u8 addr[6];
+	unsigned int fw_caps = adap->params.fw_caps_support;
+	fw_port_cap32_t pcaps, acaps;
+	enum fw_port_type port_type;
+	struct fw_port_cmd cmd;
 	int ret, i, j = 0;
-	struct fw_port_cmd c;
+	int mdio_addr;
+	u32 action;
+	u8 addr[6];
 
-	memset(&c, 0, sizeof(c));
+	memset(&cmd, 0, sizeof(cmd));
 
 	for_each_port(adap, i) {
+		struct port_info *pi = adap2pinfo(adap, i);
 		unsigned int rss_size = 0;
-		struct port_info *p = adap2pinfo(adap, i);
 
 		while ((adap->params.portvec & (1 << j)) == 0)
 			j++;
 
-		c.op_to_portid = cpu_to_be32(V_FW_CMD_OP(FW_PORT_CMD) |
-					     F_FW_CMD_REQUEST | F_FW_CMD_READ |
-					     V_FW_PORT_CMD_PORTID(j));
-		c.action_to_len16 = cpu_to_be32(V_FW_PORT_CMD_ACTION(
-						FW_PORT_ACTION_GET_PORT_INFO) |
-						FW_LEN16(c));
-		ret = t4_wr_mbox(adap, mbox, &c, sizeof(c), &c);
+		/* If we haven't yet determined whether we're talking to
+		 * Firmware which knows the new 32-bit Port Capabilities, it's
+		 * time to find out now.  This will also tell new Firmware to
+		 * send us Port Status Updates using the new 32-bit Port
+		 * Capabilities version of the Port Information message.
+		 */
+		if (fw_caps == FW_CAPS_UNKNOWN) {
+			u32 param, val, caps;
+
+			caps = FW_PARAMS_PARAM_PFVF_PORT_CAPS32;
+			param = (V_FW_PARAMS_MNEM(FW_PARAMS_MNEM_PFVF) |
+				 V_FW_PARAMS_PARAM_X(caps));
+			val = 1;
+			ret = t4_set_params(adap, mbox, pf, vf, 1, &param,
+					    &val);
+			fw_caps = ret == 0 ? FW_CAPS32 : FW_CAPS16;
+			adap->params.fw_caps_support = fw_caps;
+		}
+
+		memset(&cmd, 0, sizeof(cmd));
+		cmd.op_to_portid = cpu_to_be32(V_FW_CMD_OP(FW_PORT_CMD) |
+					       F_FW_CMD_REQUEST |
+					       F_FW_CMD_READ |
+					       V_FW_PORT_CMD_PORTID(j));
+		action = fw_caps == FW_CAPS16 ? FW_PORT_ACTION_GET_PORT_INFO :
+						FW_PORT_ACTION_GET_PORT_INFO32;
+		cmd.action_to_len16 = cpu_to_be32(V_FW_PORT_CMD_ACTION(action) |
+						  FW_LEN16(cmd));
+		ret = t4_wr_mbox(pi->adapter, mbox, &cmd, sizeof(cmd), &cmd);
 		if (ret)
 			return ret;
 
+		/* Extract the various fields from the Port Information message.
+		 */
+		if (fw_caps == FW_CAPS16) {
+			u32 lstatus =
+				be32_to_cpu(cmd.u.info.lstatus_to_modtype);
+
+			port_type = G_FW_PORT_CMD_PTYPE(lstatus);
+			mdio_addr = (lstatus & F_FW_PORT_CMD_MDIOCAP) ?
+				    (int)G_FW_PORT_CMD_MDIOADDR(lstatus) : -1;
+			pcaps = be16_to_cpu(cmd.u.info.pcap);
+			acaps = be16_to_cpu(cmd.u.info.acap);
+			pcaps = fwcaps16_to_caps32(pcaps);
+			acaps = fwcaps16_to_caps32(acaps);
+		} else {
+			u32 lstatus32 =
+				be32_to_cpu(cmd.u.info32.lstatus32_to_cbllen32);
+
+			port_type = G_FW_PORT_CMD_PORTTYPE32(lstatus32);
+			mdio_addr = (lstatus32 & F_FW_PORT_CMD_MDIOCAP32) ?
+				    (int)G_FW_PORT_CMD_MDIOADDR32(lstatus32) :
+				    -1;
+			pcaps = be32_to_cpu(cmd.u.info32.pcaps32);
+			acaps = be32_to_cpu(cmd.u.info32.acaps32);
+		}
+
 		ret = t4_alloc_vi(adap, mbox, j, pf, vf, 1, addr, &rss_size);
 		if (ret < 0)
 			return ret;
 
-		p->viid = ret;
-		p->tx_chan = j;
-		p->rss_size = rss_size;
+		pi->viid = ret;
+		pi->tx_chan = j;
+		pi->rss_size = rss_size;
 		t4_os_set_hw_addr(adap, i, addr);
 
-		ret = be32_to_cpu(c.u.info.lstatus_to_modtype);
-		p->mdio_addr = (ret & F_FW_PORT_CMD_MDIOCAP) ?
-				G_FW_PORT_CMD_MDIOADDR(ret) : -1;
-		p->port_type = G_FW_PORT_CMD_PTYPE(ret);
-		p->mod_type = FW_PORT_MOD_TYPE_NA;
+		pi->port_type = port_type;
+		pi->mdio_addr = mdio_addr;
+		pi->mod_type = FW_PORT_MOD_TYPE_NA;
 
-		init_link_config(&p->link_cfg, be16_to_cpu(c.u.info.pcap),
-				 be16_to_cpu(c.u.info.acap));
+		init_link_config(&pi->link_cfg, pcaps, acaps);
 		j++;
 	}
 	return 0;
diff --git a/drivers/net/cxgbe/base/t4fw_interface.h b/drivers/net/cxgbe/base/t4fw_interface.h
index 0e139377f..d71c5a4af 100644
--- a/drivers/net/cxgbe/base/t4fw_interface.h
+++ b/drivers/net/cxgbe/base/t4fw_interface.h
@@ -491,7 +491,8 @@ enum fw_params_param_dev {
  * physical and virtual function parameters
  */
 enum fw_params_param_pfvf {
-	FW_PARAMS_PARAM_PFVF_CPLFW4MSG_ENCAP = 0x31
+	FW_PARAMS_PARAM_PFVF_CPLFW4MSG_ENCAP = 0x31,
+	FW_PARAMS_PARAM_PFVF_PORT_CAPS32 = 0x3A
 };
 
 /*
@@ -1226,6 +1227,8 @@ enum fw_port_mdi32 {
 enum fw_port_action {
 	FW_PORT_ACTION_L1_CFG		= 0x0001,
 	FW_PORT_ACTION_GET_PORT_INFO	= 0x0003,
+	FW_PORT_ACTION_L1_CFG32         = 0x0009,
+	FW_PORT_ACTION_GET_PORT_INFO32  = 0x000a,
 };
 
 struct fw_port_cmd {
@@ -1314,6 +1317,18 @@ struct fw_port_cmd {
 				__be64 r12;
 			} control;
 		} dcb;
+		struct fw_port_l1cfg32 {
+			__be32 rcap32;
+			__be32 r;
+		} l1cfg32;
+		struct fw_port_info32 {
+			__be32 lstatus32_to_cbllen32;
+			__be32 auxlinfo32_mtu32;
+			__be32 linkattr32;
+			__be32 pcaps32;
+			__be32 acaps32;
+			__be32 lpacaps32;
+		} info32;
 	} u;
 };
 
@@ -1387,6 +1402,36 @@ struct fw_port_cmd {
 #define G_FW_PORT_CMD_MODTYPE(x)	\
 	(((x) >> S_FW_PORT_CMD_MODTYPE) & M_FW_PORT_CMD_MODTYPE)
 
+#define S_FW_PORT_CMD_LSTATUS32                31
+#define M_FW_PORT_CMD_LSTATUS32                0x1
+#define V_FW_PORT_CMD_LSTATUS32(x)     ((x) << S_FW_PORT_CMD_LSTATUS32)
+#define F_FW_PORT_CMD_LSTATUS32        V_FW_PORT_CMD_LSTATUS32(1U)
+
+#define S_FW_PORT_CMD_LINKDNRC32       28
+#define M_FW_PORT_CMD_LINKDNRC32       0x7
+#define G_FW_PORT_CMD_LINKDNRC32(x)    \
+	(((x) >> S_FW_PORT_CMD_LINKDNRC32) & M_FW_PORT_CMD_LINKDNRC32)
+
+#define S_FW_PORT_CMD_MDIOCAP32                26
+#define M_FW_PORT_CMD_MDIOCAP32                0x1
+#define V_FW_PORT_CMD_MDIOCAP32(x)     ((x) << S_FW_PORT_CMD_MDIOCAP32)
+#define F_FW_PORT_CMD_MDIOCAP32        V_FW_PORT_CMD_MDIOCAP32(1U)
+
+#define S_FW_PORT_CMD_MDIOADDR32       21
+#define M_FW_PORT_CMD_MDIOADDR32       0x1f
+#define G_FW_PORT_CMD_MDIOADDR32(x)    \
+	(((x) >> S_FW_PORT_CMD_MDIOADDR32) & M_FW_PORT_CMD_MDIOADDR32)
+
+#define S_FW_PORT_CMD_PORTTYPE32        13
+#define M_FW_PORT_CMD_PORTTYPE32        0xff
+#define G_FW_PORT_CMD_PORTTYPE32(x)     \
+	(((x) >> S_FW_PORT_CMD_PORTTYPE32) & M_FW_PORT_CMD_PORTTYPE32)
+
+#define S_FW_PORT_CMD_MODTYPE32                8
+#define M_FW_PORT_CMD_MODTYPE32                0x1f
+#define G_FW_PORT_CMD_MODTYPE32(x)     \
+	(((x) >> S_FW_PORT_CMD_MODTYPE32) & M_FW_PORT_CMD_MODTYPE32)
+
 /*
  * These are configured into the VPD and hence tools that generate
  * VPD may use this enumeration.
-- 
2.14.1