[dpdk-dev] [PATCH v3 2/9] cxgbe: add cxgbe poll mode driver.

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

Adds cxgbe poll mode driver for DPDK under drivers/net/cxgbe directory. This
patch:

1. Adds the Makefile to compile cxgbe pmd.
2. Registers and initializes the cxgbe pmd driver.

Enable cxgbe PMD for compilation and linking with changes to:
1. config/common_linuxapp to add macros for cxgbe pmd.
2. drivers/net/Makefile to add cxgbe pmd to the compile list.
3. mk/rte.app.mk to add cxgbe pmd to link.

Update MAINTAINERS file to claim responsibility for the cxgbe PMD.

Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: Kumar Sanghvi <kumaras@chelsio.com>
---
v3:
- Merge patches 10 and 11 with this patch to enable compilation and update
  MAINTAINERS.  Also, update commit log.
- Add rte_pmd_cxgbe_version.map and add EXPORT_MAP and LIBABIVER to cxgbe
  Makefile.
- Use RTE_DIM macro for calculating ARRAY_SIZE.

v2:
- Move files to new directory under drivers/net/cxgbe and update commit log.
- Move eth_dev_ops to separate patches.
- Update cxgbe Makefile to use relative rather than absolute path of pmd.
- Replace bitwise operations in fls() with gcc's __builtin_clz().
- Fix an issue in adap_init0_tweaks() related to rx_dma_offset.

 MAINTAINERS                                 |   5 +
 config/common_linuxapp                      |  10 +
 drivers/net/Makefile                        |   1 +
 drivers/net/cxgbe/Makefile                  |  78 +++
 drivers/net/cxgbe/cxgbe.h                   |  48 ++
 drivers/net/cxgbe/cxgbe_compat.h            | 266 +++++++++++
 drivers/net/cxgbe/cxgbe_ethdev.c            | 169 +++++++
 drivers/net/cxgbe/cxgbe_main.c              | 706 ++++++++++++++++++++++++++++
 drivers/net/cxgbe/rte_pmd_cxgbe_version.map |   4 +
 drivers/net/cxgbe/sge.c                     | 311 ++++++++++++
 mk/rte.app.mk                               |   1 +
 11 files changed, 1599 insertions(+)
 create mode 100644 drivers/net/cxgbe/Makefile
 create mode 100644 drivers/net/cxgbe/cxgbe.h
 create mode 100644 drivers/net/cxgbe/cxgbe_compat.h
 create mode 100644 drivers/net/cxgbe/cxgbe_ethdev.c
 create mode 100644 drivers/net/cxgbe/cxgbe_main.c
 create mode 100644 drivers/net/cxgbe/rte_pmd_cxgbe_version.map
 create mode 100644 drivers/net/cxgbe/sge.c

diff --git a/MAINTAINERS b/MAINTAINERS
index 9362c19..1ec5117 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -210,6 +210,11 @@ Linux AF_PACKET
 M: John W. Linville <linville@tuxdriver.com>
 F: drivers/net/af_packet/
 
+Chelsio cxgbe
+M: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
+F: drivers/net/cxgbe/
+F: doc/guides/nics/cxgbe.rst
+
 Cisco enic
 F: drivers/net/enic/
 
diff --git a/config/common_linuxapp b/config/common_linuxapp
index 5deb55a..22a6d4e 100644
--- a/config/common_linuxapp
+++ b/config/common_linuxapp
@@ -208,6 +208,16 @@ CONFIG_RTE_LIBRTE_MLX4_TX_MP_CACHE=8
 CONFIG_RTE_LIBRTE_MLX4_SOFT_COUNTERS=1
 
 #
+# Compile burst-oriented Chelsio Terminator 10GbE/40GbE (CXGBE) PMD
+#
+CONFIG_RTE_LIBRTE_CXGBE_PMD=y
+CONFIG_RTE_LIBRTE_CXGBE_DEBUG=n
+CONFIG_RTE_LIBRTE_CXGBE_DEBUG_REG=n
+CONFIG_RTE_LIBRTE_CXGBE_DEBUG_MBOX=n
+CONFIG_RTE_LIBRTE_CXGBE_DEBUG_TX=n
+CONFIG_RTE_LIBRTE_CXGBE_DEBUG_RX=n
+
+#
 # Compile burst-oriented Cisco ENIC PMD driver
 #
 CONFIG_RTE_LIBRTE_ENIC_PMD=y
diff --git a/drivers/net/Makefile b/drivers/net/Makefile
index 1e6648a..644cacb 100644
--- a/drivers/net/Makefile
+++ b/drivers/net/Makefile
@@ -33,6 +33,7 @@ include $(RTE_SDK)/mk/rte.vars.mk
 
 DIRS-$(CONFIG_RTE_LIBRTE_PMD_AF_PACKET) += af_packet
 DIRS-$(CONFIG_RTE_LIBRTE_PMD_BOND) += bonding
+DIRS-$(CONFIG_RTE_LIBRTE_CXGBE_PMD) += cxgbe
 DIRS-$(CONFIG_RTE_LIBRTE_E1000_PMD) += e1000
 DIRS-$(CONFIG_RTE_LIBRTE_ENIC_PMD) += enic
 DIRS-$(CONFIG_RTE_LIBRTE_FM10K_PMD) += fm10k
diff --git a/drivers/net/cxgbe/Makefile b/drivers/net/cxgbe/Makefile
new file mode 100644
index 0000000..4dfc6b0
--- /dev/null
+++ b/drivers/net/cxgbe/Makefile
@@ -0,0 +1,78 @@
+#   BSD LICENSE
+#
+#   Copyright(c) 2014-2015 Chelsio Communications.
+#   All rights reserved.
+#
+#   Redistribution and use in source and binary forms, with or without
+#   modification, are permitted provided that the following conditions
+#   are met:
+#
+#     * Redistributions of source code must retain the above copyright
+#       notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above copyright
+#       notice, this list of conditions and the following disclaimer in
+#       the documentation and/or other materials provided with the
+#       distribution.
+#     * Neither the name of Chelsio Communications nor the names of its
+#       contributors may be used to endorse or promote products derived
+#       from this software without specific prior written permission.
+#
+#   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+#   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+#   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+#   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+#   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+#   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+#   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+#   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+#   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+#   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+#   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+include $(RTE_SDK)/mk/rte.vars.mk
+
+#
+# library name
+#
+LIB = librte_pmd_cxgbe.a
+
+CFLAGS += -I$(SRCDIR)/base/
+CFLAGS += -I$(SRCDIR)
+CFLAGS += -O3
+CFLAGS += $(WERROR_FLAGS)
+
+EXPORT_MAP := rte_pmd_cxgbe_version.map
+
+LIBABIVER := 1
+
+ifeq ($(CC), icc)
+#
+# CFLAGS for icc
+#
+CFLAGS_BASE_DRIVER = -wd174 -wd593 -wd869 -wd981 -wd2259
+else
+#
+# CFLAGS for gcc
+#
+ifeq ($(shell test $(GCC_VERSION) -ge 44 && echo 1), 1)
+CFLAGS     += -Wno-deprecated
+endif
+CFLAGS_BASE_DRIVER = -Wno-unused-parameter -Wno-unused-value
+CFLAGS_BASE_DRIVER += -Wno-strict-aliasing -Wno-format-extra-args
+
+endif
+
+#
+# all source are stored in SRCS-y
+#
+SRCS-$(CONFIG_RTE_LIBRTE_CXGBE_PMD) += cxgbe_ethdev.c
+SRCS-$(CONFIG_RTE_LIBRTE_CXGBE_PMD) += cxgbe_main.c
+SRCS-$(CONFIG_RTE_LIBRTE_CXGBE_PMD) += sge.c
+SRCS-$(CONFIG_RTE_LIBRTE_CXGBE_PMD) += base/t4_hw.c
+
+# this lib depends upon:
+DEPDIRS-$(CONFIG_RTE_LIBRTE_CXGBE_PMD) += lib/librte_eal lib/librte_ether
+DEPDIRS-$(CONFIG_RTE_LIBRTE_CXGBE_PMD) += lib/librte_mempool lib/librte_mbuf
+DEPDIRS-$(CONFIG_RTE_LIBRTE_CXGBE_PMD) += lib/librte_net lib/librte_malloc
+
+include $(RTE_SDK)/mk/rte.lib.mk
diff --git a/drivers/net/cxgbe/cxgbe.h b/drivers/net/cxgbe/cxgbe.h
new file mode 100644
index 0000000..44d48dc
--- /dev/null
+++ b/drivers/net/cxgbe/cxgbe.h
@@ -0,0 +1,48 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright(c) 2014-2015 Chelsio Communications.
+ *   All rights reserved.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following conditions
+ *   are met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in
+ *       the documentation and/or other materials provided with the
+ *       distribution.
+ *     * Neither the name of Chelsio Communications nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _CXGBE_H_
+#define _CXGBE_H_
+
+#include "common.h"
+#include "t4_regs.h"
+
+#define CXGBE_MIN_RING_DESC_SIZE      1024 /* Min TX/RX descriptor ring size */
+#define CXGBE_MAX_RING_DESC_SIZE      4096 /* Max TX/RX descriptor ring size */
+
+#define CXGBE_DEFAULT_TX_DESC_SIZE    1024 /* Default TX ring size */
+#define CXGBE_DEFAULT_RX_DESC_SIZE    1024 /* Default RX ring size */
+
+int cxgbe_probe(struct adapter *adapter);
+
+#endif /* _CXGBE_H_ */
diff --git a/drivers/net/cxgbe/cxgbe_compat.h b/drivers/net/cxgbe/cxgbe_compat.h
new file mode 100644
index 0000000..3b871ee
--- /dev/null
+++ b/drivers/net/cxgbe/cxgbe_compat.h
@@ -0,0 +1,266 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright(c) 2014-2015 Chelsio Communications.
+ *   All rights reserved.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following conditions
+ *   are met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in
+ *       the documentation and/or other materials provided with the
+ *       distribution.
+ *     * Neither the name of Chelsio Communications nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _CXGBE_COMPAT_H_
+#define _CXGBE_COMPAT_H_
+
+#include <string.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdarg.h>
+
+#include <rte_common.h>
+#include <rte_memcpy.h>
+#include <rte_byteorder.h>
+#include <rte_cycles.h>
+#include <rte_spinlock.h>
+#include <rte_log.h>
+
+#define dev_printf(level, fmt, args...) \
+	RTE_LOG(level, PMD, "rte_cxgbe_pmd: " fmt, ## args)
+
+#define dev_err(x, args...) dev_printf(ERR, args)
+#define dev_info(x, args...) dev_printf(INFO, args)
+#define dev_warn(x, args...) dev_printf(WARNING, args)
+
+#ifdef RTE_LIBRTE_CXGBE_DEBUG
+#define dev_debug(x, args...) dev_printf(DEBUG, args)
+#else
+#define dev_debug(x, args...) do { } while (0)
+#endif
+
+#ifdef RTE_LIBRTE_CXGBE_DEBUG_REG
+#define CXGBE_DEBUG_REG(x, args...) dev_printf(DEBUG, "REG:" args)
+#else
+#define CXGBE_DEBUG_REG(x, args...) do { } while (0)
+#endif
+
+#ifdef RTE_LIBRTE_CXGBE_DEBUG_MBOX
+#define CXGBE_DEBUG_MBOX(x, args...) dev_printf(DEBUG, "MBOX:" args)
+#else
+#define CXGBE_DEBUG_MBOX(x, args...) do { } while (0)
+#endif
+
+#ifdef RTE_LIBRTE_CXGBE_DEBUG_TX
+#define CXGBE_DEBUG_TX(x, args...) dev_printf(DEBUG, "TX:" args)
+#else
+#define CXGBE_DEBUG_TX(x, args...) do { } while (0)
+#endif
+
+#ifdef RTE_LIBRTE_CXGBE_DEBUG_RX
+#define CXGBE_DEBUG_RX(x, args...) dev_printf(DEBUG, "RX:" args)
+#else
+#define CXGBE_DEBUG_RX(x, args...) do { } while (0)
+#endif
+
+#ifdef RTE_LIBRTE_CXGBE_DEBUG
+#define CXGBE_FUNC_TRACE() \
+	RTE_LOG(DEBUG, PMD, "CXGBE trace: %s\n", __func__)
+#else
+#define CXGBE_FUNC_TRACE() do { } while (0)
+#endif
+
+#define pr_err(y, args...) dev_err(0, y, ##args)
+#define pr_warn(y, args...) dev_warn(0, y, ##args)
+#define pr_info(y, args...) dev_info(0, y, ##args)
+#define BUG() pr_err("BUG at %s:%d", __func__, __LINE__)
+
+#define ASSERT(x) do {\
+	if (!(x)) \
+		rte_panic("CXGBE: x"); \
+} while (0)
+#define BUG_ON(x) ASSERT(!(x))
+
+#ifndef WARN_ON
+#define WARN_ON(x) do { \
+	int ret = !!(x); \
+	if (unlikely(ret)) \
+		pr_warn("WARN_ON: \"" #x "\" at %s:%d\n", __func__, __LINE__); \
+} while (0)
+#endif
+
+#define __iomem
+
+#ifndef BIT
+#define BIT(n) (1 << (n))
+#endif
+
+#define L1_CACHE_SHIFT  6
+#define L1_CACHE_BYTES  BIT(L1_CACHE_SHIFT)
+
+#define PAGE_SHIFT  12
+#define ALIGN(x, a) (((x) + (a) - 1) & ~((a) - 1))
+#define PTR_ALIGN(p, a) ((typeof(p))ALIGN((unsigned long)(p), (a)))
+
+#define VLAN_HLEN 4
+
+#define rmb()     rte_rmb() /* dpdk rte provided rmb */
+#define wmb()     rte_wmb() /* dpdk rte provided wmb */
+
+typedef uint8_t   u8;
+typedef int8_t    s8;
+typedef uint16_t  u16;
+typedef uint32_t  u32;
+typedef int32_t   s32;
+typedef uint64_t  u64;
+typedef int       bool;
+typedef uint64_t  dma_addr_t;
+
+#ifndef __le16
+#define __le16	uint16_t
+#endif
+#ifndef __le32
+#define __le32	uint32_t
+#endif
+#ifndef __le64
+#define __le64	uint64_t
+#endif
+#ifndef __be16
+#define __be16	uint16_t
+#endif
+#ifndef __be32
+#define __be32	uint32_t
+#endif
+#ifndef __be64
+#define __be64	uint64_t
+#endif
+#ifndef __u8
+#define __u8	uint8_t
+#endif
+#ifndef __u16
+#define __u16	uint16_t
+#endif
+#ifndef __u32
+#define __u32	uint32_t
+#endif
+#ifndef __u64
+#define __u64	uint64_t
+#endif
+
+#define FALSE	0
+#define TRUE	1
+#define false	0
+#define true	1
+
+#define min(a, b) RTE_MIN(a, b)
+#define max(a, b) RTE_MAX(a, b)
+
+/*
+ * round up val _p to a power of 2 size _s
+ */
+#define roundup(_p, _s) (((unsigned long)(_p) + (_s - 1)) & ~(_s - 1))
+
+#undef container_of
+#define container_of(ptr, type, member) ({ \
+		typeof(((type *)0)->member)(*__mptr) = (ptr); \
+		(type *)((char *)__mptr - offsetof(type, member)); })
+
+#define ARRAY_SIZE(arr) RTE_DIM(arr)
+
+#define cpu_to_be16(o) rte_cpu_to_be_16(o)
+#define cpu_to_be32(o) rte_cpu_to_be_32(o)
+#define cpu_to_be64(o) rte_cpu_to_be_64(o)
+#define cpu_to_le32(o) rte_cpu_to_le_32(o)
+#define be16_to_cpu(o) rte_be_to_cpu_16(o)
+#define be32_to_cpu(o) rte_be_to_cpu_32(o)
+#define be64_to_cpu(o) rte_be_to_cpu_64(o)
+#define le32_to_cpu(o) rte_le_to_cpu_32(o)
+
+#define DIV_ROUND_UP(n, d) (((n) + (d) - 1) / (d))
+#define DELAY(x) rte_delay_us(x)
+#define udelay(x) DELAY(x)
+#define msleep(x) DELAY(1000 * (x))
+#define usleep_range(min, max) msleep(DIV_ROUND_UP(min, 1000))
+
+static inline uint8_t hweight32(uint32_t word32)
+{
+	uint32_t res = word32 - ((word32 >> 1) & 0x55555555);
+
+	res = (res & 0x33333333) + ((res >> 2) & 0x33333333);
+	res = (res + (res >> 4)) & 0x0F0F0F0F;
+	res = res + (res >> 8);
+	return (res + (res >> 16)) & 0x000000FF;
+
+} /* weight32 */
+
+/**
+ * fls - find last (most-significant) bit set
+ * @x: the word to search
+ *
+ * This is defined the same way as ffs.
+ * Note fls(0) = 0, fls(1) = 1, fls(0x80000000) = 32.
+ */
+static inline int fls(int x)
+{
+	return x ? sizeof(x) * 8 - __builtin_clz(x) : 0;
+}
+
+static inline unsigned long ilog2(unsigned long n)
+{
+	unsigned int e = 0;
+
+	while (n) {
+		if (n & ~((1 << 8) - 1)) {
+			e += 8;
+			n >>= 8;
+			continue;
+		}
+
+		if (n & ~((1 << 4) - 1)) {
+			e += 4;
+			n >>= 4;
+		}
+
+		for (;;) {
+			n >>= 1;
+			if (n == 0)
+				break;
+			e++;
+		}
+	}
+
+	return e;
+}
+
+static inline void writel(unsigned int val, volatile void __iomem *addr)
+{
+	*(volatile unsigned int *)addr = val;
+}
+
+static inline void writeq(u64 val, volatile void __iomem *addr)
+{
+	writel(val, addr);
+	writel(val >> 32, (void *)((uintptr_t)addr + 4));
+}
+
+#endif /* _CXGBE_COMPAT_H_ */
diff --git a/drivers/net/cxgbe/cxgbe_ethdev.c b/drivers/net/cxgbe/cxgbe_ethdev.c
new file mode 100644
index 0000000..30d39b4
--- /dev/null
+++ b/drivers/net/cxgbe/cxgbe_ethdev.c
@@ -0,0 +1,169 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright(c) 2014-2015 Chelsio Communications.
+ *   All rights reserved.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following conditions
+ *   are met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in
+ *       the documentation and/or other materials provided with the
+ *       distribution.
+ *     * Neither the name of Chelsio Communications nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/queue.h>
+#include <stdio.h>
+#include <errno.h>
+#include <stdint.h>
+#include <string.h>
+#include <unistd.h>
+#include <stdarg.h>
+#include <inttypes.h>
+#include <netinet/in.h>
+
+#include <rte_byteorder.h>
+#include <rte_common.h>
+#include <rte_cycles.h>
+#include <rte_interrupts.h>
+#include <rte_log.h>
+#include <rte_debug.h>
+#include <rte_pci.h>
+#include <rte_atomic.h>
+#include <rte_branch_prediction.h>
+#include <rte_memory.h>
+#include <rte_memzone.h>
+#include <rte_tailq.h>
+#include <rte_eal.h>
+#include <rte_alarm.h>
+#include <rte_ether.h>
+#include <rte_ethdev.h>
+#include <rte_atomic.h>
+#include <rte_malloc.h>
+#include <rte_random.h>
+#include <rte_dev.h>
+
+#include "cxgbe.h"
+
+/*
+ * Macros needed to support the PCI Device ID Table ...
+ */
+#define CH_PCI_DEVICE_ID_TABLE_DEFINE_BEGIN \
+	static struct rte_pci_id cxgb4_pci_tbl[] = {
+#define CH_PCI_DEVICE_ID_FUNCTION 0x4
+
+#define PCI_VENDOR_ID_CHELSIO 0x1425
+
+#define CH_PCI_ID_TABLE_ENTRY(devid) \
+		{ RTE_PCI_DEVICE(PCI_VENDOR_ID_CHELSIO, (devid)) }
+
+#define CH_PCI_DEVICE_ID_TABLE_DEFINE_END \
+		{ .vendor_id = 0, } \
+	}
+
+/*
+ *... and the PCI ID Table itself ...
+ */
+#include "t4_pci_id_tbl.h"
+
+static struct eth_dev_ops cxgbe_eth_dev_ops = {
+};
+
+/*
+ * Initialize driver
+ * It returns 0 on success.
+ */
+static int eth_cxgbe_dev_init(struct rte_eth_dev *eth_dev)
+{
+	struct rte_pci_device *pci_dev;
+	struct port_info *pi = (struct port_info *)(eth_dev->data->dev_private);
+	struct adapter *adapter = NULL;
+	char name[RTE_ETH_NAME_MAX_LEN];
+	int err = 0;
+
+	CXGBE_FUNC_TRACE();
+
+	eth_dev->dev_ops = &cxgbe_eth_dev_ops;
+
+	/* for secondary processes, we don't initialise any further as primary
+	 * has already done this work.
+	 */
+	if (rte_eal_process_type() != RTE_PROC_PRIMARY)
+		return 0;
+
+	pci_dev = eth_dev->pci_dev;
+	snprintf(name, sizeof(name), "cxgbeadapter%d", eth_dev->data->port_id);
+	adapter = rte_zmalloc(name, sizeof(*adapter), 0);
+	if (!adapter)
+		return -1;
+
+	adapter->use_unpacked_mode = 1;
+	adapter->regs = (void *)pci_dev->mem_resource[0].addr;
+	if (!adapter->regs) {
+		dev_err(adapter, "%s: cannot map device registers\n", __func__);
+		err = -ENOMEM;
+		goto out_free_adapter;
+	}
+	adapter->pdev = pci_dev;
+	adapter->eth_dev = eth_dev;
+	pi->adapter = adapter;
+
+	err = cxgbe_probe(adapter);
+	if (err)
+		dev_err(adapter, "%s: cxgbe probe failed with err %d\n",
+			__func__, err);
+
+out_free_adapter:
+	return err;
+}
+
+static struct eth_driver rte_cxgbe_pmd = {
+	{
+		.name = "rte_cxgbe_pmd",
+		.id_table = cxgb4_pci_tbl,
+		.drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_INTR_LSC,
+	},
+	.eth_dev_init = eth_cxgbe_dev_init,
+	.dev_private_size = sizeof(struct port_info),
+};
+
+/*
+ * Driver initialization routine.
+ * Invoked once at EAL init time.
+ * Register itself as the [Poll Mode] Driver of PCI CXGBE devices.
+ */
+static int rte_cxgbe_pmd_init(const char *name __rte_unused,
+			      const char *params __rte_unused)
+{
+	CXGBE_FUNC_TRACE();
+
+	rte_eth_driver_register(&rte_cxgbe_pmd);
+	return 0;
+}
+
+static struct rte_driver rte_cxgbe_driver = {
+	.name = "cxgbe_driver",
+	.type = PMD_PDEV,
+	.init = rte_cxgbe_pmd_init,
+};
+
+PMD_REGISTER_DRIVER(rte_cxgbe_driver);
diff --git a/drivers/net/cxgbe/cxgbe_main.c b/drivers/net/cxgbe/cxgbe_main.c
new file mode 100644
index 0000000..6f3a6db
--- /dev/null
+++ b/drivers/net/cxgbe/cxgbe_main.c
@@ -0,0 +1,706 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright(c) 2014-2015 Chelsio Communications.
+ *   All rights reserved.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following conditions
+ *   are met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in
+ *       the documentation and/or other materials provided with the
+ *       distribution.
+ *     * Neither the name of Chelsio Communications nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/queue.h>
+#include <stdio.h>
+#include <errno.h>
+#include <stdint.h>
+#include <string.h>
+#include <unistd.h>
+#include <stdarg.h>
+#include <inttypes.h>
+#include <netinet/in.h>
+
+#include <rte_byteorder.h>
+#include <rte_common.h>
+#include <rte_cycles.h>
+#include <rte_interrupts.h>
+#include <rte_log.h>
+#include <rte_debug.h>
+#include <rte_pci.h>
+#include <rte_atomic.h>
+#include <rte_branch_prediction.h>
+#include <rte_memory.h>
+#include <rte_memzone.h>
+#include <rte_tailq.h>
+#include <rte_eal.h>
+#include <rte_alarm.h>
+#include <rte_ether.h>
+#include <rte_ethdev.h>
+#include <rte_atomic.h>
+#include <rte_malloc.h>
+#include <rte_random.h>
+#include <rte_dev.h>
+
+#include "common.h"
+#include "t4_regs.h"
+#include "t4_msg.h"
+#include "cxgbe.h"
+
+static void setup_memwin(struct adapter *adap)
+{
+	u32 mem_win0_base;
+
+	/* For T5, only relative offset inside the PCIe BAR is passed */
+	mem_win0_base = MEMWIN0_BASE;
+
+	/*
+	 * Set up memory window for accessing adapter memory ranges.  (Read
+	 * back MA register to ensure that changes propagate before we attempt
+	 * to use the new values.)
+	 */
+	t4_write_reg(adap,
+		     PCIE_MEM_ACCESS_REG(A_PCIE_MEM_ACCESS_BASE_WIN,
+					 MEMWIN_NIC),
+		     mem_win0_base | V_BIR(0) |
+		     V_WINDOW(ilog2(MEMWIN0_APERTURE) - X_WINDOW_SHIFT));
+	t4_read_reg(adap,
+		    PCIE_MEM_ACCESS_REG(A_PCIE_MEM_ACCESS_BASE_WIN,
+					MEMWIN_NIC));
+}
+
+static void print_port_info(struct adapter *adap)
+{
+	int i;
+	char buf[80];
+	struct rte_pci_addr *loc = &adap->pdev->addr;
+
+	for_each_port(adap, i) {
+		const struct port_info *pi = &adap->port[i];
+		char *bufp = buf;
+
+		if (pi->link_cfg.supported & FW_PORT_CAP_SPEED_100M)
+			bufp += sprintf(bufp, "100/");
+		if (pi->link_cfg.supported & FW_PORT_CAP_SPEED_1G)
+			bufp += sprintf(bufp, "1000/");
+		if (pi->link_cfg.supported & FW_PORT_CAP_SPEED_10G)
+			bufp += sprintf(bufp, "10G/");
+		if (pi->link_cfg.supported & FW_PORT_CAP_SPEED_40G)
+			bufp += sprintf(bufp, "40G/");
+		if (bufp != buf)
+			--bufp;
+		sprintf(bufp, "BASE-%s",
+			t4_get_port_type_description(pi->port_type));
+
+		dev_info(adap,
+			 " " PCI_PRI_FMT " Chelsio rev %d %s %s\n",
+			 loc->domain, loc->bus, loc->devid, loc->function,
+			 CHELSIO_CHIP_RELEASE(adap->params.chip), buf,
+			 (adap->flags & USING_MSIX) ? " MSI-X" :
+			 (adap->flags & USING_MSI) ? " MSI" : "");
+	}
+}
+
+/*
+ * Tweak configuration based on system architecture, etc.  Most of these have
+ * defaults assigned to them by Firmware Configuration Files (if we're using
+ * them) but need to be explicitly set if we're using hard-coded
+ * initialization. So these are essentially common tweaks/settings for
+ * Configuration Files and hard-coded initialization ...
+ */
+static int adap_init0_tweaks(struct adapter *adapter)
+{
+	u8 rx_dma_offset;
+
+	/*
+	 * Fix up various Host-Dependent Parameters like Page Size, Cache
+	 * Line Size, etc.  The firmware default is for a 4KB Page Size and
+	 * 64B Cache Line Size ...
+	 */
+	t4_fixup_host_params_compat(adapter, PAGE_SIZE, L1_CACHE_BYTES,
+				    T5_LAST_REV);
+
+	/*
+	 * Keep the chip default offset to deliver Ingress packets into our
+	 * DMA buffers to zero
+	 */
+	rx_dma_offset = 0;
+	t4_set_reg_field(adapter, A_SGE_CONTROL, V_PKTSHIFT(M_PKTSHIFT),
+			 V_PKTSHIFT(rx_dma_offset));
+
+	/*
+	 * Don't include the "IP Pseudo Header" in CPL_RX_PKT checksums: Linux
+	 * adds the pseudo header itself.
+	 */
+	t4_tp_wr_bits_indirect(adapter, A_TP_INGRESS_CONFIG,
+			       F_CSUM_HAS_PSEUDO_HDR, 0);
+
+	return 0;
+}
+
+/*
+ * Attempt to initialize the adapter via a Firmware Configuration File.
+ */
+static int adap_init0_config(struct adapter *adapter, int reset)
+{
+	struct fw_caps_config_cmd caps_cmd;
+	unsigned long mtype = 0, maddr = 0;
+	u32 finiver, finicsum, cfcsum;
+	int ret;
+	int config_issued = 0;
+	int cfg_addr;
+	char config_name[20];
+
+	/*
+	 * Reset device if necessary.
+	 */
+	if (reset) {
+		ret = t4_fw_reset(adapter, adapter->mbox,
+				  F_PIORSTMODE | F_PIORST);
+		if (ret < 0) {
+			dev_warn(adapter, "Firmware reset failed, error %d\n",
+				 -ret);
+			goto bye;
+		}
+	}
+
+	cfg_addr = t4_flash_cfg_addr(adapter);
+	if (cfg_addr < 0) {
+		ret = cfg_addr;
+		dev_warn(adapter, "Finding address for firmware config file in flash failed, error %d\n",
+			 -ret);
+		goto bye;
+	}
+
+	strcpy(config_name, "On Flash");
+	mtype = FW_MEMTYPE_CF_FLASH;
+	maddr = cfg_addr;
+
+	/*
+	 * Issue a Capability Configuration command to the firmware to get it
+	 * to parse the Configuration File.  We don't use t4_fw_config_file()
+	 * because we want the ability to modify various features after we've
+	 * processed the configuration file ...
+	 */
+	memset(&caps_cmd, 0, sizeof(caps_cmd));
+	caps_cmd.op_to_write = cpu_to_be32(V_FW_CMD_OP(FW_CAPS_CONFIG_CMD) |
+					   F_FW_CMD_REQUEST | F_FW_CMD_READ);
+	caps_cmd.cfvalid_to_len16 =
+		cpu_to_be32(F_FW_CAPS_CONFIG_CMD_CFVALID |
+			    V_FW_CAPS_CONFIG_CMD_MEMTYPE_CF(mtype) |
+			    V_FW_CAPS_CONFIG_CMD_MEMADDR64K_CF(maddr >> 16) |
+			    FW_LEN16(caps_cmd));
+	ret = t4_wr_mbox(adapter, adapter->mbox, &caps_cmd, sizeof(caps_cmd),
+			 &caps_cmd);
+	/*
+	 * If the CAPS_CONFIG failed with an ENOENT (for a Firmware
+	 * Configuration File in FLASH), our last gasp effort is to use the
+	 * Firmware Configuration File which is embedded in the firmware.  A
+	 * very few early versions of the firmware didn't have one embedded
+	 * but we can ignore those.
+	 */
+	if (ret == -ENOENT) {
+		dev_info(adapter, "%s: Going for embedded config in firmware..\n",
+			 __func__);
+
+		memset(&caps_cmd, 0, sizeof(caps_cmd));
+		caps_cmd.op_to_write =
+			cpu_to_be32(V_FW_CMD_OP(FW_CAPS_CONFIG_CMD) |
+				    F_FW_CMD_REQUEST | F_FW_CMD_READ);
+		caps_cmd.cfvalid_to_len16 = cpu_to_be32(FW_LEN16(caps_cmd));
+		ret = t4_wr_mbox(adapter, adapter->mbox, &caps_cmd,
+				 sizeof(caps_cmd), &caps_cmd);
+		strcpy(config_name, "Firmware Default");
+	}
+
+	config_issued = 1;
+	if (ret < 0)
+		goto bye;
+
+	finiver = be32_to_cpu(caps_cmd.finiver);
+	finicsum = be32_to_cpu(caps_cmd.finicsum);
+	cfcsum = be32_to_cpu(caps_cmd.cfcsum);
+	if (finicsum != cfcsum)
+		dev_warn(adapter, "Configuration File checksum mismatch: [fini] csum=%#x, computed csum=%#x\n",
+			 finicsum, cfcsum);
+
+	/*
+	 * If we're a pure NIC driver then disable all offloading facilities.
+	 * This will allow the firmware to optimize aspects of the hardware
+	 * configuration which will result in improved performance.
+	 */
+	caps_cmd.niccaps &= cpu_to_be16(~(FW_CAPS_CONFIG_NIC_HASHFILTER |
+					  FW_CAPS_CONFIG_NIC_ETHOFLD));
+	caps_cmd.toecaps = 0;
+	caps_cmd.iscsicaps = 0;
+	caps_cmd.rdmacaps = 0;
+	caps_cmd.fcoecaps = 0;
+
+	/*
+	 * And now tell the firmware to use the configuration we just loaded.
+	 */
+	caps_cmd.op_to_write = cpu_to_be32(V_FW_CMD_OP(FW_CAPS_CONFIG_CMD) |
+					   F_FW_CMD_REQUEST | F_FW_CMD_WRITE);
+	caps_cmd.cfvalid_to_len16 = htonl(FW_LEN16(caps_cmd));
+	ret = t4_wr_mbox(adapter, adapter->mbox, &caps_cmd, sizeof(caps_cmd),
+			 NULL);
+	if (ret < 0) {
+		dev_warn(adapter, "Unable to finalize Firmware Capabilities %d\n",
+			 -ret);
+		goto bye;
+	}
+
+	/*
+	 * Tweak configuration based on system architecture, etc.
+	 */
+	ret = adap_init0_tweaks(adapter);
+	if (ret < 0) {
+		dev_warn(adapter, "Unable to do init0-tweaks %d\n", -ret);
+		goto bye;
+	}
+
+	/*
+	 * And finally tell the firmware to initialize itself using the
+	 * parameters from the Configuration File.
+	 */
+	ret = t4_fw_initialize(adapter, adapter->mbox);
+	if (ret < 0) {
+		dev_warn(adapter, "Initializing Firmware failed, error %d\n",
+			 -ret);
+		goto bye;
+	}
+
+	/*
+	 * Return successfully and note that we're operating with parameters
+	 * not supplied by the driver, rather than from hard-wired
+	 * initialization constants burried in the driver.
+	 */
+	dev_info(adapter,
+		 "Successfully configured using Firmware Configuration File \"%s\", version %#x, computed checksum %#x\n",
+		 config_name, finiver, cfcsum);
+
+	return 0;
+
+	/*
+	 * Something bad happened.  Return the error ...  (If the "error"
+	 * is that there's no Configuration File on the adapter we don't
+	 * want to issue a warning since this is fairly common.)
+	 */
+bye:
+	if (config_issued && ret != -ENOENT)
+		dev_warn(adapter, "\"%s\" configuration file error %d\n",
+			 config_name, -ret);
+
+	dev_debug(adapter, "%s: returning ret = %d ..\n", __func__, ret);
+	return ret;
+}
+
+static int adap_init0(struct adapter *adap)
+{
+	int ret = 0;
+	u32 v, port_vec;
+	enum dev_state state;
+	u32 params[7], val[7];
+	int reset = 1;
+	int mbox = adap->mbox;
+
+	/*
+	 * Contact FW, advertising Master capability.
+	 */
+	ret = t4_fw_hello(adap, adap->mbox, adap->mbox, MASTER_MAY, &state);
+	if (ret < 0) {
+		dev_err(adap, "%s: could not connect to FW, error %d\n",
+			__func__, -ret);
+		goto bye;
+	}
+
+	CXGBE_DEBUG_MBOX(adap, "%s: adap->mbox = %d; ret = %d\n", __func__,
+			 adap->mbox, ret);
+
+	if (ret == mbox)
+		adap->flags |= MASTER_PF;
+
+	if (state == DEV_STATE_INIT) {
+		/*
+		 * Force halt and reset FW because a previous instance may have
+		 * exited abnormally without properly shutting down
+		 */
+		ret = t4_fw_halt(adap, adap->mbox, reset);
+		if (ret < 0) {
+			dev_err(adap, "Failed to halt. Exit.\n");
+			goto bye;
+		}
+
+		ret = t4_fw_restart(adap, adap->mbox, reset);
+		if (ret < 0) {
+			dev_err(adap, "Failed to restart. Exit.\n");
+			goto bye;
+		}
+		state &= ~DEV_STATE_INIT;
+	}
+
+	t4_get_fw_version(adap, &adap->params.fw_vers);
+	t4_get_tp_version(adap, &adap->params.tp_vers);
+
+	dev_info(adap, "fw: %u.%u.%u.%u, TP: %u.%u.%u.%u\n",
+		 G_FW_HDR_FW_VER_MAJOR(adap->params.fw_vers),
+		 G_FW_HDR_FW_VER_MINOR(adap->params.fw_vers),
+		 G_FW_HDR_FW_VER_MICRO(adap->params.fw_vers),
+		 G_FW_HDR_FW_VER_BUILD(adap->params.fw_vers),
+		 G_FW_HDR_FW_VER_MAJOR(adap->params.tp_vers),
+		 G_FW_HDR_FW_VER_MINOR(adap->params.tp_vers),
+		 G_FW_HDR_FW_VER_MICRO(adap->params.tp_vers),
+		 G_FW_HDR_FW_VER_BUILD(adap->params.tp_vers));
+
+	ret = t4_get_core_clock(adap, &adap->params.vpd);
+	if (ret < 0) {
+		dev_err(adap, "%s: could not get core clock, error %d\n",
+			__func__, -ret);
+		goto bye;
+	}
+
+	/*
+	 * Find out what ports are available to us.  Note that we need to do
+	 * this before calling adap_init0_no_config() since it needs nports
+	 * and portvec ...
+	 */
+	v = V_FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) |
+	    V_FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_PORTVEC);
+	ret = t4_query_params(adap, adap->mbox, adap->pf, 0, 1, &v, &port_vec);
+	if (ret < 0) {
+		dev_err(adap, "%s: failure in t4_queury_params; error = %d\n",
+			__func__, ret);
+		goto bye;
+	}
+
+	adap->params.nports = hweight32(port_vec);
+	adap->params.portvec = port_vec;
+
+	dev_debug(adap, "%s: adap->params.nports = %u\n", __func__,
+		  adap->params.nports);
+
+	/*
+	 * If the firmware is initialized already (and we're not forcing a
+	 * master initialization), note that we're living with existing
+	 * adapter parameters.  Otherwise, it's time to try initializing the
+	 * adapter ...
+	 */
+	if (state == DEV_STATE_INIT) {
+		dev_info(adap, "Coming up as %s: Adapter already initialized\n",
+			 adap->flags & MASTER_PF ? "MASTER" : "SLAVE");
+	} else {
+		dev_info(adap, "Coming up as MASTER: Initializing adapter\n");
+
+		ret = adap_init0_config(adap, reset);
+		if (ret == -ENOENT) {
+			dev_err(adap,
+				"No Configuration File present on adapter. Using hard-wired configuration parameters.\n");
+			goto bye;
+		}
+	}
+	if (ret < 0) {
+		dev_err(adap, "could not initialize adapter, error %d\n", -ret);
+		goto bye;
+	}
+
+	/*
+	 * Give the SGE code a chance to pull in anything that it needs ...
+	 * Note that this must be called after we retrieve our VPD parameters
+	 * in order to know how to convert core ticks to seconds, etc.
+	 */
+	ret = t4_sge_init(adap);
+	if (ret < 0) {
+		dev_err(adap, "t4_sge_init failed with error %d\n",
+			-ret);
+		goto bye;
+	}
+
+	/*
+	 * Grab some of our basic fundamental operating parameters.
+	 */
+#define FW_PARAM_DEV(param) \
+	(V_FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) | \
+	 V_FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_##param))
+
+#define FW_PARAM_PFVF(param) \
+	(V_FW_PARAMS_MNEM(FW_PARAMS_MNEM_PFVF) | \
+	 V_FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_PFVF_##param) |  \
+	 V_FW_PARAMS_PARAM_Y(0) | \
+	 V_FW_PARAMS_PARAM_Z(0))
+
+	/* If we're running on newer firmware, let it know that we're
+	 * prepared to deal with encapsulated CPL messages.  Older
+	 * firmware won't understand this and we'll just get
+	 * unencapsulated messages ...
+	 */
+	params[0] = FW_PARAM_PFVF(CPLFW4MSG_ENCAP);
+	val[0] = 1;
+	(void)t4_set_params(adap, adap->mbox, adap->pf, 0, 1, params, val);
+
+	/*
+	 * Find out whether we're allowed to use the T5+ ULPTX MEMWRITE DSGL
+	 * capability.  Earlier versions of the firmware didn't have the
+	 * ULPTX_MEMWRITE_DSGL so we'll interpret a query failure as no
+	 * permission to use ULPTX MEMWRITE DSGL.
+	 */
+	if (is_t4(adap->params.chip)) {
+		adap->params.ulptx_memwrite_dsgl = false;
+	} else {
+		params[0] = FW_PARAM_DEV(ULPTX_MEMWRITE_DSGL);
+		ret = t4_query_params(adap, adap->mbox, adap->pf, 0,
+				      1, params, val);
+		adap->params.ulptx_memwrite_dsgl = (ret == 0 && val[0] != 0);
+	}
+
+	/*
+	 * The MTU/MSS Table is initialized by now, so load their values.  If
+	 * we're initializing the adapter, then we'll make any modifications
+	 * we want to the MTU/MSS Table and also initialize the congestion
+	 * parameters.
+	 */
+	t4_read_mtu_tbl(adap, adap->params.mtus, NULL);
+	if (state != DEV_STATE_INIT) {
+		int i;
+
+		/*
+		 * The default MTU Table contains values 1492 and 1500.
+		 * However, for TCP, it's better to have two values which are
+		 * a multiple of 8 +/- 4 bytes apart near this popular MTU.
+		 * This allows us to have a TCP Data Payload which is a
+		 * multiple of 8 regardless of what combination of TCP Options
+		 * are in use (always a multiple of 4 bytes) which is
+		 * important for performance reasons.  For instance, if no
+		 * options are in use, then we have a 20-byte IP header and a
+		 * 20-byte TCP header.  In this case, a 1500-byte MSS would
+		 * result in a TCP Data Payload of 1500 - 40 == 1460 bytes
+		 * which is not a multiple of 8.  So using an MSS of 1488 in
+		 * this case results in a TCP Data Payload of 1448 bytes which
+		 * is a multiple of 8.  On the other hand, if 12-byte TCP Time
+		 * Stamps have been negotiated, then an MTU of 1500 bytes
+		 * results in a TCP Data Payload of 1448 bytes which, as
+		 * above, is a multiple of 8 bytes ...
+		 */
+		for (i = 0; i < NMTUS; i++)
+			if (adap->params.mtus[i] == 1492) {
+				adap->params.mtus[i] = 1488;
+				break;
+			}
+
+		t4_load_mtus(adap, adap->params.mtus, adap->params.a_wnd,
+			     adap->params.b_wnd);
+	}
+	t4_init_sge_params(adap);
+	t4_init_tp_params(adap);
+
+	adap->params.drv_memwin = MEMWIN_NIC;
+	adap->flags |= FW_OK;
+	dev_debug(adap, "%s: returning zero..\n", __func__);
+	return 0;
+
+	/*
+	 * Something bad happened.  If a command timed out or failed with EIO
+	 * FW does not operate within its spec or something catastrophic
+	 * happened to HW/FW, stop issuing commands.
+	 */
+bye:
+	if (ret != -ETIMEDOUT && ret != -EIO)
+		t4_fw_bye(adap, adap->mbox);
+	return ret;
+}
+
+/**
+ * t4_os_portmod_changed - handle port module changes
+ * @adap: the adapter associated with the module change
+ * @port_id: the port index whose module status has changed
+ *
+ * This is the OS-dependent handler for port module changes.  It is
+ * invoked when a port module is removed or inserted for any OS-specific
+ * processing.
+ */
+void t4_os_portmod_changed(const struct adapter *adap, int port_id)
+{
+	static const char * const mod_str[] = {
+		NULL, "LR", "SR", "ER", "passive DA", "active DA", "LRM"
+	};
+
+	const struct port_info *pi = &adap->port[port_id];
+
+	if (pi->mod_type == FW_PORT_MOD_TYPE_NONE)
+		dev_info(adap, "Port%d: port module unplugged\n", pi->port_id);
+	else if (pi->mod_type < ARRAY_SIZE(mod_str))
+		dev_info(adap, "Port%d: %s port module inserted\n", pi->port_id,
+			 mod_str[pi->mod_type]);
+	else if (pi->mod_type == FW_PORT_MOD_TYPE_NOTSUPPORTED)
+		dev_info(adap, "Port%d: unsupported optical port module inserted\n",
+			 pi->port_id);
+	else if (pi->mod_type == FW_PORT_MOD_TYPE_UNKNOWN)
+		dev_info(adap, "Port%d: unknown port module inserted, forcing TWINAX\n",
+			 pi->port_id);
+	else if (pi->mod_type == FW_PORT_MOD_TYPE_ERROR)
+		dev_info(adap, "Port%d: transceiver module error\n",
+			 pi->port_id);
+	else
+		dev_info(adap, "Port%d: unknown module type %d inserted\n",
+			 pi->port_id, pi->mod_type);
+}
+
+int cxgbe_probe(struct adapter *adapter)
+{
+	struct port_info *pi;
+	int func, i;
+	int err = 0;
+
+	func = G_SOURCEPF(t4_read_reg(adapter, A_PL_WHOAMI));
+	adapter->mbox = func;
+	adapter->pf = func;
+
+	t4_os_lock_init(&adapter->mbox_lock);
+	TAILQ_INIT(&adapter->mbox_list);
+
+	err = t4_prep_adapter(adapter);
+	if (err)
+		return err;
+
+	setup_memwin(adapter);
+	err = adap_init0(adapter);
+	if (err) {
+		dev_err(adapter, "%s: Adapter initialization failed, error %d\n",
+			__func__, err);
+		goto out_free;
+	}
+
+	if (!is_t4(adapter->params.chip)) {
+		/*
+		 * The userspace doorbell BAR is split evenly into doorbell
+		 * regions, each associated with an egress queue.  If this
+		 * per-queue region is large enough (at least UDBS_SEG_SIZE)
+		 * then it can be used to submit a tx work request with an
+		 * implied doorbell.  Enable write combining on the BAR if
+		 * there is room for such work requests.
+		 */
+		int s_qpp, qpp, num_seg;
+
+		s_qpp = (S_QUEUESPERPAGEPF0 +
+			(S_QUEUESPERPAGEPF1 - S_QUEUESPERPAGEPF0) *
+			adapter->pf);
+		qpp = 1 << ((t4_read_reg(adapter,
+				A_SGE_EGRESS_QUEUES_PER_PAGE_PF) >> s_qpp)
+				& M_QUEUESPERPAGEPF0);
+		num_seg = PAGE_SIZE / UDBS_SEG_SIZE;
+		if (qpp > num_seg)
+			dev_warn(adapter, "Incorrect SGE EGRESS QUEUES_PER_PAGE configuration, continuing in debug mode\n");
+
+		adapter->bar2 = (void *)adapter->pdev->mem_resource[2].addr;
+		if (!adapter->bar2) {
+			dev_err(adapter, "cannot map device bar2 region\n");
+			err = -ENOMEM;
+			goto out_free;
+		}
+		t4_write_reg(adapter, A_SGE_STAT_CFG, V_STATSOURCE_T5(7) |
+			     V_STATMODE(0));
+	}
+
+	for_each_port(adapter, i) {
+		char name[RTE_ETH_NAME_MAX_LEN];
+		struct rte_eth_dev_data *data = NULL;
+		const unsigned int numa_node = rte_socket_id();
+
+		pi = &adapter->port[i];
+		pi->adapter = adapter;
+		pi->xact_addr_filt = -1;
+		pi->port_id = i;
+
+		snprintf(name, sizeof(name), "cxgbe%d",
+			 adapter->eth_dev->data->port_id + i);
+
+		if (i == 0) {
+			/* First port is already allocated by DPDK */
+			pi->eth_dev = adapter->eth_dev;
+			goto allocate_mac;
+		}
+
+		/*
+		 * now do all data allocation - for eth_dev structure,
+		 * and internal (private) data for the remaining ports
+		 */
+
+		/* reserve an ethdev entry */
+		pi->eth_dev = rte_eth_dev_allocate(name, RTE_ETH_DEV_PCI);
+		if (!pi->eth_dev)
+			goto out_free;
+
+		data = rte_zmalloc_socket(name, sizeof(*data), 0, numa_node);
+		if (!data)
+			goto out_free;
+
+		data->port_id = adapter->eth_dev->data->port_id + i;
+
+		pi->eth_dev->data = data;
+
+allocate_mac:
+		pi->eth_dev->pci_dev = adapter->pdev;
+		pi->eth_dev->data->dev_private = pi;
+		pi->eth_dev->driver = adapter->eth_dev->driver;
+		pi->eth_dev->dev_ops = adapter->eth_dev->dev_ops;
+		TAILQ_INIT(&pi->eth_dev->link_intr_cbs);
+
+		pi->eth_dev->data->mac_addrs = rte_zmalloc(name,
+							   ETHER_ADDR_LEN, 0);
+		if (!pi->eth_dev->data->mac_addrs) {
+			dev_err(adapter, "%s: Mem allocation failed for storing mac addr, aborting\n",
+				__func__);
+			err = -1;
+			goto out_free;
+		}
+	}
+
+	if (adapter->flags & FW_OK) {
+		err = t4_port_init(adapter, adapter->mbox, adapter->pf, 0);
+		if (err) {
+			dev_err(adapter, "%s: t4_port_init failed with err %d\n",
+				__func__, err);
+			goto out_free;
+		}
+	}
+
+	print_port_info(adapter);
+
+	return 0;
+
+out_free:
+	for_each_port(adapter, i) {
+		pi = adap2pinfo(adapter, i);
+		if (pi->viid != 0)
+			t4_free_vi(adapter, adapter->mbox, adapter->pf,
+				   0, pi->viid);
+		/* Skip first port since it'll be de-allocated by DPDK */
+		if (i == 0)
+			continue;
+		if (pi->eth_dev->data)
+			rte_free(pi->eth_dev->data);
+	}
+
+	if (adapter->flags & FW_OK)
+		t4_fw_bye(adapter, adapter->mbox);
+	return -err;
+}
diff --git a/drivers/net/cxgbe/rte_pmd_cxgbe_version.map b/drivers/net/cxgbe/rte_pmd_cxgbe_version.map
new file mode 100644
index 0000000..bd8138a
--- /dev/null
+++ b/drivers/net/cxgbe/rte_pmd_cxgbe_version.map
@@ -0,0 +1,4 @@
+DPDK_2.1 {
+
+	local: *;
+};
diff --git a/drivers/net/cxgbe/sge.c b/drivers/net/cxgbe/sge.c
new file mode 100644
index 0000000..20da0fd
--- /dev/null
+++ b/drivers/net/cxgbe/sge.c
@@ -0,0 +1,311 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright(c) 2014-2015 Chelsio Communications.
+ *   All rights reserved.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following conditions
+ *   are met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in
+ *       the documentation and/or other materials provided with the
+ *       distribution.
+ *     * Neither the name of Chelsio Communications nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <linux/if_ether.h>
+#include <sys/queue.h>
+#include <stdio.h>
+#include <errno.h>
+#include <stdint.h>
+#include <string.h>
+#include <unistd.h>
+#include <stdarg.h>
+#include <inttypes.h>
+#include <netinet/in.h>
+
+#include <rte_byteorder.h>
+#include <rte_common.h>
+#include <rte_cycles.h>
+#include <rte_interrupts.h>
+#include <rte_log.h>
+#include <rte_debug.h>
+#include <rte_pci.h>
+#include <rte_atomic.h>
+#include <rte_branch_prediction.h>
+#include <rte_memory.h>
+#include <rte_memzone.h>
+#include <rte_tailq.h>
+#include <rte_eal.h>
+#include <rte_alarm.h>
+#include <rte_ether.h>
+#include <rte_ethdev.h>
+#include <rte_atomic.h>
+#include <rte_malloc.h>
+#include <rte_random.h>
+#include <rte_dev.h>
+
+#include "common.h"
+#include "t4_regs.h"
+#include "t4_msg.h"
+#include "cxgbe.h"
+
+/*
+ * Rx buffer sizes for "usembufs" Free List buffers (one ingress packet
+ * per mbuf buffer).  We currently only support two sizes for 1500- and
+ * 9000-byte MTUs. We could easily support more but there doesn't seem to be
+ * much need for that ...
+ */
+#define FL_MTU_SMALL 1500
+#define FL_MTU_LARGE 9000
+
+static inline unsigned int fl_mtu_bufsize(struct adapter *adapter,
+					  unsigned int mtu)
+{
+	struct sge *s = &adapter->sge;
+
+	return ALIGN(s->pktshift + ETH_HLEN + VLAN_HLEN + mtu, s->fl_align);
+}
+
+#define FL_MTU_SMALL_BUFSIZE(adapter) fl_mtu_bufsize(adapter, FL_MTU_SMALL)
+#define FL_MTU_LARGE_BUFSIZE(adapter) fl_mtu_bufsize(adapter, FL_MTU_LARGE)
+
+/*
+ * Bits 0..3 of rx_sw_desc.dma_addr have special meaning.  The hardware uses
+ * these to specify the buffer size as an index into the SGE Free List Buffer
+ * Size register array.  We also use bit 4, when the buffer has been unmapped
+ * for DMA, but this is of course never sent to the hardware and is only used
+ * to prevent double unmappings.  All of the above requires that the Free List
+ * Buffers which we allocate have the bottom 5 bits free (0) -- i.e. are
+ * 32-byte or or a power of 2 greater in alignment.  Since the SGE's minimal
+ * Free List Buffer alignment is 32 bytes, this works out for us ...
+ */
+enum {
+	RX_BUF_FLAGS     = 0x1f,   /* bottom five bits are special */
+	RX_BUF_SIZE      = 0x0f,   /* bottom three bits are for buf sizes */
+	RX_UNMAPPED_BUF  = 0x10,   /* buffer is not mapped */
+
+	/*
+	 * XXX We shouldn't depend on being able to use these indices.
+	 * XXX Especially when some other Master PF has initialized the
+	 * XXX adapter or we use the Firmware Configuration File.  We
+	 * XXX should really search through the Host Buffer Size register
+	 * XXX array for the appropriately sized buffer indices.
+	 */
+	RX_SMALL_PG_BUF  = 0x0,   /* small (PAGE_SIZE) page buffer */
+	RX_LARGE_PG_BUF  = 0x1,   /* buffer large page buffer */
+
+	RX_SMALL_MTU_BUF = 0x2,   /* small MTU buffer */
+	RX_LARGE_MTU_BUF = 0x3,   /* large MTU buffer */
+};
+
+/**
+ * t4_sge_init - initialize SGE
+ * @adap: the adapter
+ *
+ * Performs SGE initialization needed every time after a chip reset.
+ * We do not initialize any of the queues here, instead the driver
+ * top-level must request those individually.
+ *
+ * Called in two different modes:
+ *
+ *  1. Perform actual hardware initialization and record hard-coded
+ *     parameters which were used.  This gets used when we're the
+ *     Master PF and the Firmware Configuration File support didn't
+ *     work for some reason.
+ *
+ *  2. We're not the Master PF or initialization was performed with
+ *     a Firmware Configuration File.  In this case we need to grab
+ *     any of the SGE operating parameters that we need to have in
+ *     order to do our job and make sure we can live with them ...
+ */
+static int t4_sge_init_soft(struct adapter *adap)
+{
+	struct sge *s = &adap->sge;
+	u32 fl_small_pg, fl_large_pg, fl_small_mtu, fl_large_mtu;
+	u32 timer_value_0_and_1, timer_value_2_and_3, timer_value_4_and_5;
+	u32 ingress_rx_threshold;
+
+	/*
+	 * Verify that CPL messages are going to the Ingress Queue for
+	 * process_responses() and that only packet data is going to the
+	 * Free Lists.
+	 */
+	if ((t4_read_reg(adap, A_SGE_CONTROL) & F_RXPKTCPLMODE) !=
+	    V_RXPKTCPLMODE(X_RXPKTCPLMODE_SPLIT)) {
+		dev_err(adap, "bad SGE CPL MODE\n");
+		return -EINVAL;
+	}
+
+	/*
+	 * Validate the Host Buffer Register Array indices that we want to
+	 * use ...
+	 *
+	 * XXX Note that we should really read through the Host Buffer Size
+	 * XXX register array and find the indices of the Buffer Sizes which
+	 * XXX meet our needs!
+	 */
+#define READ_FL_BUF(x) \
+	t4_read_reg(adap, A_SGE_FL_BUFFER_SIZE0 + (x) * sizeof(u32))
+
+	fl_small_pg = READ_FL_BUF(RX_SMALL_PG_BUF);
+	fl_large_pg = READ_FL_BUF(RX_LARGE_PG_BUF);
+	fl_small_mtu = READ_FL_BUF(RX_SMALL_MTU_BUF);
+	fl_large_mtu = READ_FL_BUF(RX_LARGE_MTU_BUF);
+
+	/*
+	 * We only bother using the Large Page logic if the Large Page Buffer
+	 * is larger than our Page Size Buffer.
+	 */
+	if (fl_large_pg <= fl_small_pg)
+		fl_large_pg = 0;
+
+#undef READ_FL_BUF
+
+	/*
+	 * The Page Size Buffer must be exactly equal to our Page Size and the
+	 * Large Page Size Buffer should be 0 (per above) or a power of 2.
+	 */
+	if (fl_small_pg != PAGE_SIZE ||
+	    (fl_large_pg & (fl_large_pg - 1)) != 0) {
+		dev_err(adap, "bad SGE FL page buffer sizes [%d, %d]\n",
+			fl_small_pg, fl_large_pg);
+		return -EINVAL;
+	}
+	if (fl_large_pg)
+		s->fl_pg_order = ilog2(fl_large_pg) - PAGE_SHIFT;
+
+	if (adap->use_unpacked_mode) {
+		int err = 0;
+
+		if (fl_small_mtu < FL_MTU_SMALL_BUFSIZE(adap)) {
+			dev_err(adap, "bad SGE FL small MTU %d\n",
+				fl_small_mtu);
+			err = -EINVAL;
+		}
+		if (fl_large_mtu < FL_MTU_LARGE_BUFSIZE(adap)) {
+			dev_err(adap, "bad SGE FL large MTU %d\n",
+				fl_large_mtu);
+			err = -EINVAL;
+		}
+		if (err)
+			return err;
+	}
+
+	/*
+	 * Retrieve our RX interrupt holdoff timer values and counter
+	 * threshold values from the SGE parameters.
+	 */
+	timer_value_0_and_1 = t4_read_reg(adap, A_SGE_TIMER_VALUE_0_AND_1);
+	timer_value_2_and_3 = t4_read_reg(adap, A_SGE_TIMER_VALUE_2_AND_3);
+	timer_value_4_and_5 = t4_read_reg(adap, A_SGE_TIMER_VALUE_4_AND_5);
+	s->timer_val[0] = core_ticks_to_us(adap,
+					   G_TIMERVALUE0(timer_value_0_and_1));
+	s->timer_val[1] = core_ticks_to_us(adap,
+					   G_TIMERVALUE1(timer_value_0_and_1));
+	s->timer_val[2] = core_ticks_to_us(adap,
+					   G_TIMERVALUE2(timer_value_2_and_3));
+	s->timer_val[3] = core_ticks_to_us(adap,
+					   G_TIMERVALUE3(timer_value_2_and_3));
+	s->timer_val[4] = core_ticks_to_us(adap,
+					   G_TIMERVALUE4(timer_value_4_and_5));
+	s->timer_val[5] = core_ticks_to_us(adap,
+					   G_TIMERVALUE5(timer_value_4_and_5));
+
+	ingress_rx_threshold = t4_read_reg(adap, A_SGE_INGRESS_RX_THRESHOLD);
+	s->counter_val[0] = G_THRESHOLD_0(ingress_rx_threshold);
+	s->counter_val[1] = G_THRESHOLD_1(ingress_rx_threshold);
+	s->counter_val[2] = G_THRESHOLD_2(ingress_rx_threshold);
+	s->counter_val[3] = G_THRESHOLD_3(ingress_rx_threshold);
+
+	return 0;
+}
+
+int t4_sge_init(struct adapter *adap)
+{
+	struct sge *s = &adap->sge;
+	u32 sge_control, sge_control2, sge_conm_ctrl;
+	unsigned int ingpadboundary, ingpackboundary;
+	int ret, egress_threshold;
+
+	/*
+	 * Ingress Padding Boundary and Egress Status Page Size are set up by
+	 * t4_fixup_host_params().
+	 */
+	sge_control = t4_read_reg(adap, A_SGE_CONTROL);
+	s->pktshift = G_PKTSHIFT(sge_control);
+	s->stat_len = (sge_control & F_EGRSTATUSPAGESIZE) ? 128 : 64;
+
+	/*
+	 * T4 uses a single control field to specify both the PCIe Padding and
+	 * Packing Boundary.  T5 introduced the ability to specify these
+	 * separately.  The actual Ingress Packet Data alignment boundary
+	 * within Packed Buffer Mode is the maximum of these two
+	 * specifications.
+	 */
+	ingpadboundary = 1 << (G_INGPADBOUNDARY(sge_control) +
+			 X_INGPADBOUNDARY_SHIFT);
+	s->fl_align = ingpadboundary;
+
+	if (!is_t4(adap->params.chip) && !adap->use_unpacked_mode) {
+		/*
+		 * T5 has a weird interpretation of one of the PCIe Packing
+		 * Boundary values.  No idea why ...
+		 */
+		sge_control2 = t4_read_reg(adap, A_SGE_CONTROL2);
+		ingpackboundary = G_INGPACKBOUNDARY(sge_control2);
+		if (ingpackboundary == X_INGPACKBOUNDARY_16B)
+			ingpackboundary = 16;
+		else
+			ingpackboundary = 1 << (ingpackboundary +
+					  X_INGPACKBOUNDARY_SHIFT);
+
+		s->fl_align = max(ingpadboundary, ingpackboundary);
+	}
+
+	ret = t4_sge_init_soft(adap);
+	if (ret < 0) {
+		dev_err(adap, "%s: t4_sge_init_soft failed, error %d\n",
+			__func__, -ret);
+		return ret;
+	}
+
+	/*
+	 * A FL with <= fl_starve_thres buffers is starving and a periodic
+	 * timer will attempt to refill it.  This needs to be larger than the
+	 * SGE's Egress Congestion Threshold.  If it isn't, then we can get
+	 * stuck waiting for new packets while the SGE is waiting for us to
+	 * give it more Free List entries.  (Note that the SGE's Egress
+	 * Congestion Threshold is in units of 2 Free List pointers.)  For T4,
+	 * there was only a single field to control this.  For T5 there's the
+	 * original field which now only applies to Unpacked Mode Free List
+	 * buffers and a new field which only applies to Packed Mode Free List
+	 * buffers.
+	 */
+	sge_conm_ctrl = t4_read_reg(adap, A_SGE_CONM_CTRL);
+	if (is_t4(adap->params.chip) || adap->use_unpacked_mode)
+		egress_threshold = G_EGRTHRESHOLD(sge_conm_ctrl);
+	else
+		egress_threshold = G_EGRTHRESHOLDPACKING(sge_conm_ctrl);
+	s->fl_starve_thres = 2 * egress_threshold + 1;
+
+	return 0;
+}
diff --git a/mk/rte.app.mk b/mk/rte.app.mk
index 1a2043a..bba6ddc 100644
--- a/mk/rte.app.mk
+++ b/mk/rte.app.mk
@@ -122,6 +122,7 @@ ifeq ($(CONFIG_RTE_BUILD_SHARED_LIB),n)
 
 _LDLIBS-$(CONFIG_RTE_LIBRTE_VMXNET3_PMD)    += -lrte_pmd_vmxnet3_uio
 _LDLIBS-$(CONFIG_RTE_LIBRTE_VIRTIO_PMD)     += -lrte_pmd_virtio
+_LDLIBS-$(CONFIG_RTE_LIBRTE_CXGBE_PMD)      += -lrte_pmd_cxgbe
 _LDLIBS-$(CONFIG_RTE_LIBRTE_ENIC_PMD)       += -lrte_pmd_enic
 _LDLIBS-$(CONFIG_RTE_LIBRTE_I40E_PMD)       += -lrte_pmd_i40e
 _LDLIBS-$(CONFIG_RTE_LIBRTE_FM10K_PMD)      += -lrte_pmd_fm10k
-- 
2.4.1