[dpdk-dev] [PATCH v6 4/6] enicpmd: pmd specific code

[Sujith Sankar <ssujith@cisco.com>]

Signed-off-by: Sujith Sankar <ssujith@cisco.com>
---
 lib/librte_pmd_enic/enic.h        |  157 +++++
 lib/librte_pmd_enic/enic_clsf.c   |  244 +++++++
 lib/librte_pmd_enic/enic_compat.h |  142 +++++
 lib/librte_pmd_enic/enic_main.c   | 1266 +++++++++++++++++++++++++++++++++++++
 lib/librte_pmd_enic/enic_res.c    |  221 +++++++
 lib/librte_pmd_enic/enic_res.h    |  168 +++++
 6 files changed, 2198 insertions(+)
 create mode 100644 lib/librte_pmd_enic/enic.h
 create mode 100644 lib/librte_pmd_enic/enic_clsf.c
 create mode 100644 lib/librte_pmd_enic/enic_compat.h
 create mode 100644 lib/librte_pmd_enic/enic_main.c
 create mode 100644 lib/librte_pmd_enic/enic_res.c
 create mode 100644 lib/librte_pmd_enic/enic_res.h

diff --git a/lib/librte_pmd_enic/enic.h b/lib/librte_pmd_enic/enic.h
new file mode 100644
index 0000000..9f80fc0
--- /dev/null
+++ b/lib/librte_pmd_enic/enic.h
@@ -0,0 +1,157 @@
+/*
+ * Copyright 2008-2014 Cisco Systems, Inc.  All rights reserved.
+ * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
+ *
+ * Copyright (c) 2014, Cisco Systems, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. 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.
+ *
+ * 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 HOLDER 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.
+ *
+ */
+#ident "$Id$"
+
+#ifndef _ENIC_H_
+#define _ENIC_H_
+
+#include "vnic_enet.h"
+#include "vnic_dev.h"
+#include "vnic_wq.h"
+#include "vnic_rq.h"
+#include "vnic_cq.h"
+#include "vnic_intr.h"
+#include "vnic_stats.h"
+#include "vnic_nic.h"
+#include "vnic_rss.h"
+#include "enic_res.h"
+
+#define DRV_NAME		"enic_pmd"
+#define DRV_DESCRIPTION		"Cisco VIC Ethernet NIC Poll-mode Driver"
+#define DRV_VERSION		"1.0.0.4"
+#define DRV_COPYRIGHT		"Copyright 2008-2014 Cisco Systems, Inc"
+
+#define ENIC_WQ_MAX		8
+#define ENIC_RQ_MAX		8
+#define ENIC_CQ_MAX		(ENIC_WQ_MAX + ENIC_RQ_MAX)
+#define ENIC_INTR_MAX		(ENIC_CQ_MAX + 2)
+
+#define VLAN_ETH_HLEN           18
+
+#define ENICPMD_SETTING(enic, f) ((enic->config.flags & VENETF_##f) ? 1 : 0)
+
+#define ENICPMD_BDF_LENGTH      13   /* 0000:00:00.0'\0' */
+#define PKT_TX_TCP_UDP_CKSUM    0x6000
+#define ENIC_CALC_IP_CKSUM      1
+#define ENIC_CALC_TCP_UDP_CKSUM 2
+#define ENIC_MAX_MTU            9000
+#define PAGE_SIZE               4096
+#define PAGE_ROUND_UP(x) \
+	((((unsigned long)(x)) + PAGE_SIZE-1) & (~(PAGE_SIZE-1)))
+
+#define ENICPMD_VFIO_PATH          "/dev/vfio/vfio"
+/*#define ENIC_DESC_COUNT_MAKE_ODD (x) do{if ((~(x)) & 1) { (x)--; } }while(0)*/
+
+#define PCI_DEVICE_ID_CISCO_VIC_ENET         0x0043  /* ethernet vnic */
+#define PCI_DEVICE_ID_CISCO_VIC_ENET_VF      0x0071  /* enet SRIOV VF */
+
+
+#define ENICPMD_FDIR_MAX           64
+
+struct enic_fdir_node {
+	struct rte_fdir_filter filter;
+	u16 fltr_id;
+	u16 rq_index;
+};
+
+struct enic_fdir {
+	struct rte_eth_fdir stats;
+	struct rte_hash *hash;
+	struct enic_fdir_node *nodes[ENICPMD_FDIR_MAX];
+};
+
+/* Per-instance private data structure */
+struct enic {
+	struct enic *next;
+	struct rte_pci_device *pdev;
+	struct vnic_enet_config config;
+	struct vnic_dev_bar bar0;
+	struct vnic_dev *vdev;
+
+	struct rte_eth_dev *rte_dev;
+	struct enic_fdir fdir;
+	char bdf_name[ENICPMD_BDF_LENGTH];
+	int dev_fd;
+	int iommu_group_fd;
+	int iommu_groupid;
+	int eventfd;
+	u_int8_t mac_addr[ETH_ALEN];
+	pthread_t err_intr_thread;
+	int promisc;
+	int allmulti;
+	int ig_vlan_strip_en;
+	int link_status;
+	u8 hw_ip_checksum;
+
+	unsigned int flags;
+	unsigned int priv_flags;
+
+	/* work queue */
+	struct vnic_wq wq[ENIC_WQ_MAX];
+	unsigned int wq_count;
+
+	/* receive queue */
+	struct vnic_rq rq[ENIC_RQ_MAX];
+	unsigned int rq_count;
+
+	/* completion queue */
+	struct vnic_cq cq[ENIC_CQ_MAX];
+	unsigned int cq_count;
+
+	/* interrupt resource */
+	struct vnic_intr intr;
+	unsigned int intr_count;
+};
+
+static inline unsigned int enic_cq_rq(struct enic *enic, unsigned int rq)
+{
+	return rq;
+}
+
+static inline unsigned int enic_cq_wq(struct enic *enic, unsigned int wq)
+{
+	return enic->rq_count + wq;
+}
+
+static inline unsigned int enic_msix_err_intr(struct enic *enic)
+{
+	return 0;
+}
+
+static inline struct enic *pmd_priv(struct rte_eth_dev *eth_dev)
+{
+	return (struct enic *)eth_dev->data->dev_private;
+}
+
+#endif /* _ENIC_H_ */
diff --git a/lib/librte_pmd_enic/enic_clsf.c b/lib/librte_pmd_enic/enic_clsf.c
new file mode 100644
index 0000000..0b3038c
--- /dev/null
+++ b/lib/librte_pmd_enic/enic_clsf.c
@@ -0,0 +1,244 @@
+/*
+ * Copyright 2008-2014 Cisco Systems, Inc.  All rights reserved.
+ * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
+ *
+ * Copyright (c) 2014, Cisco Systems, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. 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.
+ *
+ * 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 HOLDER 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.
+ *
+ */
+#ident "$Id$"
+
+#include <libgen.h>
+
+#include <rte_ethdev.h>
+#include <rte_malloc.h>
+#include <rte_hash.h>
+#include <rte_byteorder.h>
+
+#include "enic_compat.h"
+#include "enic.h"
+#include "wq_enet_desc.h"
+#include "rq_enet_desc.h"
+#include "cq_enet_desc.h"
+#include "vnic_enet.h"
+#include "vnic_dev.h"
+#include "vnic_wq.h"
+#include "vnic_rq.h"
+#include "vnic_cq.h"
+#include "vnic_intr.h"
+#include "vnic_nic.h"
+
+#ifdef RTE_MACHINE_CPUFLAG_SSE4_2
+#include <rte_hash_crc.h>
+#define DEFAULT_HASH_FUNC       rte_hash_crc
+#else
+#include <rte_jhash.h>
+#define DEFAULT_HASH_FUNC       rte_jhash
+#endif
+
+#define SOCKET_0                0
+#define ENICPMD_CLSF_HASH_ENTRIES       ENICPMD_FDIR_MAX
+#define ENICPMD_CLSF_BUCKET_ENTRIES     4
+
+int enic_fdir_del_fltr(struct enic *enic, struct rte_fdir_filter *params)
+{
+	int32_t pos;
+	struct enic_fdir_node *key;
+	/* See if the key is in the table */
+	pos = rte_hash_del_key(enic->fdir.hash, params);
+	switch (pos) {
+	case -EINVAL:
+	case -ENOENT:
+		enic->fdir.stats.f_remove++;
+		return -EINVAL;
+	default:
+		/* The entry is present in the table */
+		key = enic->fdir.nodes[pos];
+
+		/* Delete the filter */
+		vnic_dev_classifier(enic->vdev, CLSF_DEL,
+			&key->fltr_id, NULL);
+		rte_free(key);
+		enic->fdir.nodes[pos] = NULL;
+		enic->fdir.stats.free++;
+		enic->fdir.stats.remove++;
+		break;
+	}
+	return 0;
+}
+
+int enic_fdir_add_fltr(struct enic *enic, struct rte_fdir_filter *params,
+	u16 queue, u8 drop)
+{
+	struct enic_fdir_node *key;
+	struct filter fltr = {0};
+	int32_t pos;
+	u8 do_free = 0;
+	u16 old_fltr_id = 0;
+
+	if (!enic->fdir.hash || params->vlan_id || !params->l4type ||
+		(RTE_FDIR_IPTYPE_IPV6 == params->iptype) ||
+		(RTE_FDIR_L4TYPE_SCTP == params->l4type) ||
+		params->flex_bytes || drop) {
+		enic->fdir.stats.f_add++;
+		return -ENOTSUP;
+	}
+
+	/* See if the key is already there in the table */
+	pos = rte_hash_del_key(enic->fdir.hash, params);
+	switch (pos) {
+	case -EINVAL:
+		enic->fdir.stats.f_add++;
+		return -EINVAL;
+	case -ENOENT:
+		/* Add a new classifier entry */
+		if (!enic->fdir.stats.free) {
+			enic->fdir.stats.f_add++;
+			return -ENOSPC;
+		}
+		key = (struct enic_fdir_node *)rte_zmalloc(
+			"enic_fdir_node",
+			sizeof(struct enic_fdir_node), 0);
+		if (!key) {
+			enic->fdir.stats.f_add++;
+			return -ENOMEM;
+		}
+		break;
+	default:
+		/* The entry is already present in the table.
+		 * Check if there is a change in queue
+		 */
+		key = enic->fdir.nodes[pos];
+		enic->fdir.nodes[pos] = NULL;
+		if (unlikely(key->rq_index == queue)) {
+			/* Nothing to be done */
+			pos = rte_hash_add_key(enic->fdir.hash, params);
+			enic->fdir.nodes[pos] = key;
+			enic->fdir.stats.f_add++;
+			dev_warning(enic,
+				"FDIR rule is already present\n");
+			return 0;
+		}
+
+		if (likely(enic->fdir.stats.free)) {
+			/* Add the filter and then delete the old one.
+			 * This is to avoid packets from going into the
+			 * default queue during the window between
+			 * delete and add
+			 */
+			do_free = 1;
+			old_fltr_id = key->fltr_id;
+		} else {
+			/* No free slots in the classifier.
+			 * Delete the filter and add the modified one later
+			 */
+			vnic_dev_classifier(enic->vdev, CLSF_DEL,
+				&key->fltr_id, NULL);
+			enic->fdir.stats.free++;
+		}
+
+		break;
+	}
+
+	key->filter = *params;
+	key->rq_index = queue;
+
+	fltr.type = FILTER_IPV4_5TUPLE;
+	fltr.u.ipv4.src_addr = rte_be_to_cpu_32(params->ip_src.ipv4_addr);
+	fltr.u.ipv4.dst_addr = rte_be_to_cpu_32(params->ip_dst.ipv4_addr);
+	fltr.u.ipv4.src_port = rte_be_to_cpu_16(params->port_src);
+	fltr.u.ipv4.dst_port = rte_be_to_cpu_16(params->port_dst);
+
+	if (RTE_FDIR_L4TYPE_TCP == params->l4type)
+		fltr.u.ipv4.protocol = PROTO_TCP;
+	else
+		fltr.u.ipv4.protocol = PROTO_UDP;
+
+	fltr.u.ipv4.flags = FILTER_FIELDS_IPV4_5TUPLE;
+
+	if (!vnic_dev_classifier(enic->vdev, CLSF_ADD, &queue, &fltr)) {
+		key->fltr_id = queue;
+	} else {
+		dev_err(enic, "Add classifier entry failed\n");
+		enic->fdir.stats.f_add++;
+		rte_free(key);
+		return -1;
+	}
+
+	if (do_free)
+		vnic_dev_classifier(enic->vdev, CLSF_DEL, &old_fltr_id, NULL);
+	else{
+		enic->fdir.stats.free--;
+		enic->fdir.stats.add++;
+	}
+
+	pos = rte_hash_add_key(enic->fdir.hash, (void *)key);
+	enic->fdir.nodes[pos] = key;
+	return 0;
+}
+
+void enic_clsf_destroy(struct enic *enic)
+{
+	u32 index;
+	struct enic_fdir_node *key;
+	/* delete classifier entries */
+	for (index = 0; index < ENICPMD_FDIR_MAX; index++) {
+		key = enic->fdir.nodes[index];
+		if (key) {
+			vnic_dev_classifier(enic->vdev, CLSF_DEL,
+				&key->fltr_id, NULL);
+			rte_free(key);
+		}
+	}
+
+	if (enic->fdir.hash) {
+		rte_hash_free(enic->fdir.hash);
+		enic->fdir.hash = NULL;
+	}
+}
+
+int enic_clsf_init(struct enic *enic)
+{
+	struct rte_hash_parameters hash_params = {
+		.name = "enicpmd_clsf_hash",
+		.entries = ENICPMD_CLSF_HASH_ENTRIES,
+		.bucket_entries = ENICPMD_CLSF_BUCKET_ENTRIES,
+		.key_len = sizeof(struct rte_fdir_filter),
+		.hash_func = DEFAULT_HASH_FUNC,
+		.hash_func_init_val = 0,
+		.socket_id = SOCKET_0,
+	};
+
+	enic->fdir.hash = rte_hash_create(&hash_params);
+	memset(&enic->fdir.stats, 0, sizeof(enic->fdir.stats));
+	enic->fdir.stats.free = ENICPMD_FDIR_MAX;
+	return (NULL == enic->fdir.hash);
+}
+
+
+
diff --git a/lib/librte_pmd_enic/enic_compat.h b/lib/librte_pmd_enic/enic_compat.h
new file mode 100644
index 0000000..d22578e
--- /dev/null
+++ b/lib/librte_pmd_enic/enic_compat.h
@@ -0,0 +1,142 @@
+/*
+ * Copyright 2008-2014 Cisco Systems, Inc.  All rights reserved.
+ * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
+ *
+ * Copyright (c) 2014, Cisco Systems, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. 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.
+ *
+ * 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 HOLDER 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.
+ *
+ */
+#ident "$Id$"
+
+#ifndef _ENIC_COMPAT_H_
+#define _ENIC_COMPAT_H_
+
+#include <stdio.h>
+
+#include <rte_atomic.h>
+#include <rte_malloc.h>
+
+#define ENIC_PAGE_ALIGN 4096ULL
+#define ENIC_ALIGN      ENIC_PAGE_ALIGN
+#define NAME_MAX        255
+#define ETH_ALEN        6
+
+#define __iomem
+
+#define rmb()     rte_rmb() /* dpdk rte provided rmb */
+#define wmb()     rte_wmb() /* dpdk rte provided wmb */
+
+#define le16_to_cpu
+#define le32_to_cpu
+#define le64_to_cpu
+#define cpu_to_le16
+#define cpu_to_le32
+#define cpu_to_le64
+
+#ifndef offsetof
+#define offsetof(t, m) ((size_t) &((t *)0)->m)
+#endif
+
+#define pr_err(y, args...) dev_err(0, y, ##args)
+#define pr_warn(y, args...) dev_warning(0, y, ##args)
+#define BUG() pr_err("BUG at %s:%d", __func__, __LINE__)
+
+#define ALIGN(x, a)              __ALIGN_MASK(x, (typeof(x))(a)-1)
+#define __ALIGN_MASK(x, mask)    (((x)+(mask))&~(mask))
+#define udelay usleep
+#define DIV_ROUND_UP(n, d) (((n) + (d) - 1) / (d))
+
+#define kzalloc(size, flags) calloc(1, size)
+#define kfree(x) free(x)
+
+#define dev_err(x, args...) printf("rte_enic_pmd : Error - " args)
+#define dev_info(x, args...) printf("rte_enic_pmd: Info - " args)
+#define dev_warning(x, args...) printf("rte_enic_pmd: Warning - " args)
+#define dev_trace(x, args...) printf("rte_enic_pmd: Trace - " args)
+
+#define __le16 u16
+#define __le32 u32
+#define __le64 u64
+
+typedef		unsigned char       u8;
+typedef		unsigned short      u16;
+typedef		unsigned int        u32;
+typedef         unsigned long long  u64;
+typedef         unsigned long long  dma_addr_t;
+
+static inline u_int32_t ioread32(volatile void *addr)
+{
+	return *(volatile u_int32_t *)addr;
+}
+
+static inline u16 ioread16(volatile void *addr)
+{
+	return *(volatile u16 *)addr;
+}
+
+static inline u_int8_t ioread8(volatile void *addr)
+{
+	return *(volatile u_int8_t *)addr;
+}
+
+static inline void iowrite32(u_int32_t val, volatile void *addr)
+{
+	*(volatile u_int32_t *)addr = val;
+}
+
+static inline void iowrite16(u16 val, volatile void *addr)
+{
+	*(volatile u16 *)addr = val;
+}
+
+static inline void iowrite8(u_int8_t val, volatile void *addr)
+{
+	*(volatile u_int8_t *)addr = val;
+}
+
+static inline unsigned int readl(volatile void __iomem *addr)
+{
+	return *(volatile unsigned int *)addr;
+}
+
+static inline void writel(unsigned int val, volatile void __iomem *addr)
+{
+	*(volatile unsigned int *)addr = val;
+}
+
+#define min_t(type, x, y) ({                    \
+	type __min1 = (x);                      \
+	type __min2 = (y);                      \
+	__min1 < __min2 ? __min1 : __min2; })
+
+#define max_t(type, x, y) ({                    \
+	type __max1 = (x);                      \
+	type __max2 = (y);                      \
+	__max1 > __max2 ? __max1 : __max2; })
+
+#endif /* _ENIC_COMPAT_H_ */
diff --git a/lib/librte_pmd_enic/enic_main.c b/lib/librte_pmd_enic/enic_main.c
new file mode 100644
index 0000000..c047cc8
--- /dev/null
+++ b/lib/librte_pmd_enic/enic_main.c
@@ -0,0 +1,1266 @@
+/*
+ * Copyright 2008-2014 Cisco Systems, Inc.  All rights reserved.
+ * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
+ *
+ * Copyright (c) 2014, Cisco Systems, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. 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.
+ *
+ * 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 HOLDER 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.
+ *
+ */
+#ident "$Id$"
+
+#include <stdio.h>
+
+#include <sys/stat.h>
+#include <sys/mman.h>
+#include <fcntl.h>
+#include <libgen.h>
+#ifdef RTE_EAL_VFIO
+#include <linux/vfio.h>
+#endif
+
+#include <rte_pci.h>
+#include <rte_memzone.h>
+#include <rte_malloc.h>
+#include <rte_mbuf.h>
+#include <rte_string_fns.h>
+#include <rte_ethdev.h>
+
+#include "enic_compat.h"
+#include "enic.h"
+#include "wq_enet_desc.h"
+#include "rq_enet_desc.h"
+#include "cq_enet_desc.h"
+#include "vnic_enet.h"
+#include "vnic_dev.h"
+#include "vnic_wq.h"
+#include "vnic_rq.h"
+#include "vnic_cq.h"
+#include "vnic_intr.h"
+#include "vnic_nic.h"
+
+static inline int enic_is_sriov_vf(struct enic *enic)
+{
+	return enic->pdev->id.device_id == PCI_DEVICE_ID_CISCO_VIC_ENET_VF;
+}
+
+static int is_zero_addr(char *addr)
+{
+	return !(addr[0] |  addr[1] | addr[2] | addr[3] | addr[4] | addr[5]);
+}
+
+static int is_mcast_addr(char *addr)
+{
+	return addr[0] & 1;
+}
+
+static int is_eth_addr_valid(char *addr)
+{
+	return !is_mcast_addr(addr) && !is_zero_addr(addr);
+}
+
+static inline struct rte_mbuf *
+enic_rxmbuf_alloc(struct rte_mempool *mp)
+{
+	struct rte_mbuf *m;
+
+	m = __rte_mbuf_raw_alloc(mp);
+	__rte_mbuf_sanity_check_raw(m, 0);
+	return m;
+}
+
+static const struct rte_memzone *ring_dma_zone_reserve(
+	struct rte_eth_dev *dev, const char *ring_name,
+	uint16_t queue_id, uint32_t ring_size, int socket_id)
+{
+	char z_name[RTE_MEMZONE_NAMESIZE];
+	const struct rte_memzone *mz;
+
+	snprintf(z_name, sizeof(z_name), "%s_%s_%d_%d",
+		dev->driver->pci_drv.name, ring_name,
+		dev->data->port_id, queue_id);
+
+	mz = rte_memzone_lookup(z_name);
+	if (mz)
+		return mz;
+
+	return rte_memzone_reserve_aligned(z_name, (uint64_t) ring_size,
+		socket_id, RTE_MEMZONE_1GB, ENIC_ALIGN);
+}
+
+void enic_set_hdr_split_size(struct enic *enic, u16 split_hdr_size)
+{
+	vnic_set_hdr_split_size(enic->vdev, split_hdr_size);
+}
+
+static void enic_free_wq_buf(struct vnic_wq *wq, struct vnic_wq_buf *buf)
+{
+	struct rte_mbuf *mbuf = (struct rte_mbuf *)buf->os_buf;
+
+	rte_mempool_put(mbuf->pool, mbuf);
+	buf->os_buf = NULL;
+}
+
+static void enic_wq_free_buf(struct vnic_wq *wq,
+	struct cq_desc *cq_desc, struct vnic_wq_buf *buf, void *opaque)
+{
+	enic_free_wq_buf(wq, buf);
+}
+
+static int enic_wq_service(struct vnic_dev *vdev, struct cq_desc *cq_desc,
+	u8 type, u16 q_number, u16 completed_index, void *opaque)
+{
+	struct enic *enic = vnic_dev_priv(vdev);
+
+	vnic_wq_service(&enic->wq[q_number], cq_desc,
+		completed_index, enic_wq_free_buf,
+		opaque);
+
+	return 0;
+}
+
+static void enic_log_q_error(struct enic *enic)
+{
+	unsigned int i;
+	u32 error_status;
+
+	for (i = 0; i < enic->wq_count; i++) {
+		error_status = vnic_wq_error_status(&enic->wq[i]);
+		if (error_status)
+			dev_err(enic, "WQ[%d] error_status %d\n", i,
+				error_status);
+	}
+
+	for (i = 0; i < enic->rq_count; i++) {
+		error_status = vnic_rq_error_status(&enic->rq[i]);
+		if (error_status)
+			dev_err(enic, "RQ[%d] error_status %d\n", i,
+				error_status);
+	}
+}
+
+unsigned int enic_cleanup_wq(struct enic *enic, struct vnic_wq *wq)
+{
+	unsigned int cq = enic_cq_wq(enic, wq->index);
+
+	/* Return the work done */
+	return vnic_cq_service(&enic->cq[cq],
+		-1 /*wq_work_to_do*/, enic_wq_service, NULL);
+}
+
+
+int enic_send_pkt(struct enic *enic, struct vnic_wq *wq,
+	struct rte_mbuf *tx_pkt, unsigned short len,
+	u_int8_t sop, u_int8_t eop,
+	u_int16_t ol_flags, u_int16_t vlan_tag)
+{
+	struct wq_enet_desc *desc = vnic_wq_next_desc(wq);
+	u_int16_t mss = 0;
+	u_int16_t header_length = 0;
+	u_int8_t cq_entry = eop;
+	u_int8_t vlan_tag_insert = 0;
+	unsigned char *buf = (unsigned char *)(tx_pkt->buf_addr) +
+	    RTE_PKTMBUF_HEADROOM;
+	u_int64_t bus_addr = (dma_addr_t)
+	    (tx_pkt->buf_physaddr + RTE_PKTMBUF_HEADROOM);
+
+	if (sop) {
+		if (ol_flags & PKT_TX_VLAN_PKT)
+			vlan_tag_insert = 1;
+
+		if (enic->hw_ip_checksum) {
+			if (ol_flags & PKT_TX_IP_CKSUM)
+				mss |= ENIC_CALC_IP_CKSUM;
+
+			if (ol_flags & PKT_TX_TCP_UDP_CKSUM)
+				mss |= ENIC_CALC_TCP_UDP_CKSUM;
+		}
+	}
+
+	wq_enet_desc_enc(desc,
+		bus_addr,
+		len,
+		mss,
+		0 /* header_length */,
+		0 /* offload_mode WQ_ENET_OFFLOAD_MODE_CSUM */,
+		eop,
+		cq_entry,
+		0 /* fcoe_encap */,
+		vlan_tag_insert,
+		vlan_tag,
+		0 /* loopback */);
+
+	vnic_wq_post(wq, (void *)tx_pkt, bus_addr, len,
+		sop, eop,
+		1 /*desc_skip_cnt*/,
+		cq_entry,
+		0 /*compressed send*/,
+		0 /*wrid*/);
+
+	return 0;
+}
+
+void enic_dev_stats_clear(struct enic *enic)
+{
+	if (vnic_dev_stats_clear(enic->vdev))
+		dev_err(enic, "Error in clearing stats\n");
+}
+
+void enic_dev_stats_get(struct enic *enic, struct rte_eth_stats *r_stats)
+{
+	struct vnic_stats *stats;
+
+	memset(r_stats, 0, sizeof(*r_stats));
+	if (vnic_dev_stats_dump(enic->vdev, &stats)) {
+		dev_err(enic, "Error in getting stats\n");
+		return;
+	}
+
+	r_stats->ipackets = stats->rx.rx_frames_ok;
+	r_stats->opackets = stats->tx.tx_frames_ok;
+
+	r_stats->ibytes = stats->rx.rx_bytes_ok;
+	r_stats->obytes = stats->tx.tx_bytes_ok;
+
+	r_stats->ierrors = stats->rx.rx_errors;
+	r_stats->oerrors = stats->tx.tx_errors;
+
+	r_stats->imcasts = stats->rx.rx_multicast_frames_ok;
+	r_stats->rx_nombuf = stats->rx.rx_no_bufs;
+}
+
+void enic_del_mac_address(struct enic *enic)
+{
+	if (vnic_dev_del_addr(enic->vdev, enic->mac_addr))
+		dev_err(enic, "del mac addr failed\n");
+}
+
+void enic_set_mac_address(struct enic *enic, uint8_t *mac_addr)
+{
+	int err;
+
+	if (!is_eth_addr_valid(mac_addr)) {
+		dev_err(enic, "invalid mac address\n");
+		return;
+	}
+
+	err = vnic_dev_del_addr(enic->vdev, mac_addr);
+	if (err) {
+		dev_err(enic, "del mac addr failed\n");
+		return;
+	}
+
+	ether_addr_copy((struct ether_addr *)mac_addr,
+		(struct ether_addr *)enic->mac_addr);
+
+	err = vnic_dev_add_addr(enic->vdev, mac_addr);
+	if (err) {
+		dev_err(enic, "add mac addr failed\n");
+		return;
+	}
+}
+
+static void enic_free_rq_buf(struct vnic_rq *rq, struct vnic_rq_buf *buf)
+{
+	struct enic *enic = vnic_dev_priv(rq->vdev);
+
+	if (!buf->os_buf)
+		return;
+
+	rte_pktmbuf_free((struct rte_mbuf *)buf->os_buf);
+	buf->os_buf = NULL;
+}
+
+void enic_init_vnic_resources(struct enic *enic)
+{
+	unsigned int error_interrupt_enable = 1;
+	unsigned int error_interrupt_offset = 0;
+	int index = 0;
+	unsigned int cq_index = 0;
+
+	for (index = 0; index < enic->rq_count; index++) {
+		vnic_rq_init(&enic->rq[index],
+			enic_cq_rq(enic, index),
+			error_interrupt_enable,
+			error_interrupt_offset);
+	}
+
+	for (index = 0; index < enic->wq_count; index++) {
+		vnic_wq_init(&enic->wq[index],
+			enic_cq_wq(enic, index),
+			error_interrupt_enable,
+			error_interrupt_offset);
+	}
+
+	vnic_dev_stats_clear(enic->vdev);
+
+	for (index = 0; index < enic->cq_count; index++) {
+		vnic_cq_init(&enic->cq[index],
+			0 /* flow_control_enable */,
+			1 /* color_enable */,
+			0 /* cq_head */,
+			0 /* cq_tail */,
+			1 /* cq_tail_color */,
+			0 /* interrupt_enable */,
+			1 /* cq_entry_enable */,
+			0 /* cq_message_enable */,
+			0 /* interrupt offset */,
+			0 /* cq_message_addr */);
+	}
+
+	vnic_intr_init(&enic->intr,
+		enic->config.intr_timer_usec,
+		enic->config.intr_timer_type,
+		/*mask_on_assertion*/1);
+}
+
+
+static int enic_rq_alloc_buf(struct vnic_rq *rq)
+{
+	struct enic *enic = vnic_dev_priv(rq->vdev);
+	void *buf;
+	dma_addr_t dma_addr;
+	struct rq_enet_desc *desc = vnic_rq_next_desc(rq);
+	u_int8_t type = RQ_ENET_TYPE_ONLY_SOP;
+	u_int16_t len = ENIC_MAX_MTU + VLAN_ETH_HLEN;
+	u16 split_hdr_size = vnic_get_hdr_split_size(enic->vdev);
+	struct rte_mbuf *mbuf = enic_rxmbuf_alloc(rq->mp);
+	struct rte_mbuf *hdr_mbuf = NULL;
+
+	if (!mbuf) {
+		dev_err(enic, "mbuf alloc in enic_rq_alloc_buf failed\n");
+		return -1;
+	}
+
+	if (unlikely(split_hdr_size)) {
+		if (vnic_rq_desc_avail(rq) < 2) {
+			rte_mempool_put(mbuf->pool, mbuf);
+			return -1;
+		}
+		hdr_mbuf = enic_rxmbuf_alloc(rq->mp);
+		if (!hdr_mbuf) {
+			rte_mempool_put(mbuf->pool, mbuf);
+			dev_err(enic,
+				"hdr_mbuf alloc in enic_rq_alloc_buf failed\n");
+			return -1;
+		}
+
+		hdr_mbuf->data_off = RTE_PKTMBUF_HEADROOM;
+		buf = rte_pktmbuf_mtod(hdr_mbuf, void *);
+
+		hdr_mbuf->nb_segs = 2;
+		hdr_mbuf->port = rq->index;
+		hdr_mbuf->next = mbuf;
+
+		dma_addr = (dma_addr_t)
+		    (hdr_mbuf->buf_physaddr + hdr_mbuf->data_off);
+
+		rq_enet_desc_enc(desc, dma_addr, type, split_hdr_size);
+
+		vnic_rq_post(rq, (void *)hdr_mbuf, 0 /*os_buf_index*/, dma_addr,
+			(unsigned int)split_hdr_size, 0 /*wrid*/);
+
+		desc = vnic_rq_next_desc(rq);
+		type = RQ_ENET_TYPE_NOT_SOP;
+	} else {
+		mbuf->nb_segs = 1;
+		mbuf->port = rq->index;
+	}
+
+	mbuf->data_off = RTE_PKTMBUF_HEADROOM;
+	buf = rte_pktmbuf_mtod(mbuf, void *);
+	mbuf->next = NULL;
+
+	dma_addr = (dma_addr_t)
+	    (mbuf->buf_physaddr + mbuf->data_off);
+
+	rq_enet_desc_enc(desc, dma_addr, type, mbuf->buf_len);
+
+	vnic_rq_post(rq, (void *)mbuf, 0 /*os_buf_index*/, dma_addr,
+		(unsigned int)mbuf->buf_len, 0 /*wrid*/);
+
+	return 0;
+}
+
+static int enic_rq_indicate_buf(struct vnic_rq *rq,
+	struct cq_desc *cq_desc, struct vnic_rq_buf *buf,
+	int skipped, void *opaque)
+{
+	struct enic *enic = vnic_dev_priv(rq->vdev);
+	struct rte_mbuf **rx_pkt_bucket = (struct rte_mbuf **)opaque;
+	struct rte_mbuf *rx_pkt = NULL;
+	struct rte_mbuf *hdr_rx_pkt = NULL;
+
+	u8 type, color, eop, sop, ingress_port, vlan_stripped;
+	u8 fcoe, fcoe_sof, fcoe_fc_crc_ok, fcoe_enc_error, fcoe_eof;
+	u8 tcp_udp_csum_ok, udp, tcp, ipv4_csum_ok;
+	u8 ipv6, ipv4, ipv4_fragment, fcs_ok, rss_type, csum_not_calc;
+	u8 packet_error;
+	u16 q_number, completed_index, bytes_written, vlan_tci, checksum;
+	u32 rss_hash;
+
+	cq_enet_rq_desc_dec((struct cq_enet_rq_desc *)cq_desc,
+		&type, &color, &q_number, &completed_index,
+		&ingress_port, &fcoe, &eop, &sop, &rss_type,
+		&csum_not_calc, &rss_hash, &bytes_written,
+		&packet_error, &vlan_stripped, &vlan_tci, &checksum,
+		&fcoe_sof, &fcoe_fc_crc_ok, &fcoe_enc_error,
+		&fcoe_eof, &tcp_udp_csum_ok, &udp, &tcp,
+		&ipv4_csum_ok, &ipv6, &ipv4, &ipv4_fragment,
+		&fcs_ok);
+
+	if (packet_error) {
+		dev_err(enic, "packet error\n");
+		return;
+	}
+
+	rx_pkt = (struct rte_mbuf *)buf->os_buf;
+	buf->os_buf = NULL;
+
+	if (unlikely(skipped)) {
+		rx_pkt->data_len = 0;
+		return 0;
+	}
+
+	if (likely(!vnic_get_hdr_split_size(enic->vdev))) {
+		/* No header split configured */
+		*rx_pkt_bucket = rx_pkt;
+		rx_pkt->pkt_len = bytes_written;
+
+		if (ipv4) {
+			rx_pkt->ol_flags |= PKT_RX_IPV4_HDR;
+			if (!csum_not_calc) {
+				if (unlikely(!ipv4_csum_ok))
+					rx_pkt->ol_flags |= PKT_RX_IP_CKSUM_BAD;
+
+				if ((tcp || udp) && (!tcp_udp_csum_ok))
+					rx_pkt->ol_flags |= PKT_RX_L4_CKSUM_BAD;
+			}
+		} else if (ipv6)
+			rx_pkt->ol_flags |= PKT_RX_IPV6_HDR;
+	} else {
+		/* Header split */
+		if (sop && !eop) {
+			/* This piece is header */
+			*rx_pkt_bucket = rx_pkt;
+			rx_pkt->pkt_len = bytes_written;
+		} else {
+			if (sop && eop) {
+				/* The packet is smaller than split_hdr_size */
+				*rx_pkt_bucket = rx_pkt;
+				rx_pkt->pkt_len = bytes_written;
+				if (ipv4) {
+					rx_pkt->ol_flags |= PKT_RX_IPV4_HDR;
+					if (!csum_not_calc) {
+						if (unlikely(!ipv4_csum_ok))
+							rx_pkt->ol_flags |=
+							    PKT_RX_IP_CKSUM_BAD;
+
+						if ((tcp || udp) &&
+						    (!tcp_udp_csum_ok))
+							rx_pkt->ol_flags |=
+							    PKT_RX_L4_CKSUM_BAD;
+					}
+				} else if (ipv6)
+					rx_pkt->ol_flags |= PKT_RX_IPV6_HDR;
+			} else {
+				/* Payload */
+				hdr_rx_pkt = *rx_pkt_bucket;
+				hdr_rx_pkt->pkt_len += bytes_written;
+				if (ipv4) {
+					hdr_rx_pkt->ol_flags |= PKT_RX_IPV4_HDR;
+					if (!csum_not_calc) {
+						if (unlikely(!ipv4_csum_ok))
+							hdr_rx_pkt->ol_flags |=
+							    PKT_RX_IP_CKSUM_BAD;
+
+						if ((tcp || udp) &&
+						    (!tcp_udp_csum_ok))
+							hdr_rx_pkt->ol_flags |=
+							    PKT_RX_L4_CKSUM_BAD;
+					}
+				} else if (ipv6)
+					hdr_rx_pkt->ol_flags |= PKT_RX_IPV6_HDR;
+
+			}
+		}
+	}
+
+	rx_pkt->data_len = bytes_written;
+
+	if (rss_hash) {
+		rx_pkt->ol_flags |= PKT_RX_RSS_HASH;
+		rx_pkt->hash.rss = rss_hash;
+	}
+
+	if (vlan_tci) {
+		rx_pkt->ol_flags |= PKT_RX_VLAN_PKT;
+		rx_pkt->vlan_tci = vlan_tci;
+	}
+
+	return eop;
+}
+
+static int enic_rq_service(struct vnic_dev *vdev, struct cq_desc *cq_desc,
+	u8 type, u16 q_number, u16 completed_index, void *opaque)
+{
+	struct enic *enic = vnic_dev_priv(vdev);
+
+	return vnic_rq_service(&enic->rq[q_number], cq_desc,
+		completed_index, VNIC_RQ_RETURN_DESC,
+		enic_rq_indicate_buf, opaque);
+
+}
+
+int enic_poll(struct vnic_rq *rq, struct rte_mbuf **rx_pkts,
+	unsigned int budget, unsigned int *work_done)
+{
+	struct enic *enic = vnic_dev_priv(rq->vdev);
+	unsigned int cq = enic_cq_rq(enic, rq->index);
+	int err = 0;
+
+	*work_done = vnic_cq_service(&enic->cq[cq],
+		budget, enic_rq_service, (void *)rx_pkts);
+
+	if (*work_done) {
+		vnic_rq_fill(rq, enic_rq_alloc_buf);
+
+		/* Need at least one buffer on ring to get going */
+		if (vnic_rq_desc_used(rq) == 0) {
+			dev_err(enic, "Unable to alloc receive buffers\n");
+			err = -1;
+		}
+	}
+	return err;
+}
+
+void *enic_alloc_consistent(void *priv, size_t size,
+	dma_addr_t *dma_handle, u8 *name)
+{
+	struct enic *enic = (struct enic *)priv;
+	void *vaddr;
+	const struct rte_memzone *rz;
+	*dma_handle = 0;
+
+	rz = rte_memzone_reserve_aligned(name, size, 0, 0, ENIC_ALIGN);
+	if (!rz) {
+		pr_err("%s : Failed to allocate memory requested for %s",
+			__func__, name);
+		return NULL;
+	}
+
+	vaddr = rz->addr;
+	*dma_handle = (dma_addr_t)rz->phys_addr;
+
+	return vaddr;
+}
+
+void enic_free_consistent(struct rte_pci_device *hwdev, size_t size,
+	void *vaddr, dma_addr_t dma_handle)
+{
+	/* Nothing to be done */
+}
+
+void enic_intr_handler(__rte_unused struct rte_intr_handle *handle,
+	void *arg)
+{
+	struct enic *enic = pmd_priv((struct rte_eth_dev *)arg);
+
+	dev_err(enic, "Err intr.\n");
+	vnic_intr_return_all_credits(&enic->intr);
+
+	enic_log_q_error(enic);
+}
+
+int enic_enable(struct enic *enic)
+{
+	int index;
+	void *res;
+	char mz_name[RTE_MEMZONE_NAMESIZE];
+	const struct rte_memzone *rmz;
+	struct rte_eth_dev *eth_dev = enic->rte_dev;
+
+	eth_dev->data->dev_link.link_speed = vnic_dev_port_speed(enic->vdev);
+	eth_dev->data->dev_link.link_duplex = ETH_LINK_FULL_DUPLEX;
+	vnic_dev_notify_set(enic->vdev, -1); /* No Intr for notify */
+
+	if (enic_clsf_init(enic))
+		dev_warning(enic, "Init of hash table for clsf failed."\
+			"Flow director feature will not work\n");
+
+	/* Fill RQ bufs */
+	for (index = 0; index < enic->rq_count; index++) {
+		vnic_rq_fill(&enic->rq[index], enic_rq_alloc_buf);
+
+		/* Need at least one buffer on ring to get going
+		*/
+		if (vnic_rq_desc_used(&enic->rq[index]) == 0) {
+			dev_err(enic, "Unable to alloc receive buffers\n");
+			return -1;
+		}
+	}
+
+	for (index = 0; index < enic->wq_count; index++)
+		vnic_wq_enable(&enic->wq[index]);
+	for (index = 0; index < enic->rq_count; index++)
+		vnic_rq_enable(&enic->rq[index]);
+
+	vnic_dev_enable_wait(enic->vdev);
+
+#ifndef RTE_EAL_VFIO
+	/* Register and enable error interrupt */
+	rte_intr_callback_register(&(enic->pdev->intr_handle),
+		enic_intr_handler, (void *)enic->rte_dev);
+
+	rte_intr_enable(&(enic->pdev->intr_handle));
+#endif
+	vnic_intr_unmask(&enic->intr);
+
+	return 0;
+}
+
+int enic_alloc_intr_resources(struct enic *enic)
+{
+	int err;
+
+	dev_info(enic, "vNIC resources used:  "\
+		"wq %d rq %d cq %d intr %d\n",
+		enic->wq_count, enic->rq_count,
+		enic->cq_count, enic->intr_count);
+
+	err = vnic_intr_alloc(enic->vdev, &enic->intr, 0);
+	if (err)
+		enic_free_vnic_resources(enic);
+
+	return err;
+}
+
+void enic_free_rq(void *rxq)
+{
+	struct vnic_rq *rq = (struct vnic_rq *)rxq;
+	struct enic *enic = vnic_dev_priv(rq->vdev);
+
+	vnic_rq_free(rq);
+	vnic_cq_free(&enic->cq[rq->index]);
+}
+
+void enic_start_wq(struct enic *enic, uint16_t queue_idx)
+{
+	vnic_wq_enable(&enic->wq[queue_idx]);
+}
+
+int enic_stop_wq(struct enic *enic, uint16_t queue_idx)
+{
+	return vnic_wq_disable(&enic->wq[queue_idx]);
+}
+
+void enic_start_rq(struct enic *enic, uint16_t queue_idx)
+{
+	vnic_rq_enable(&enic->rq[queue_idx]);
+}
+
+int enic_stop_rq(struct enic *enic, uint16_t queue_idx)
+{
+	return vnic_rq_disable(&enic->rq[queue_idx]);
+}
+
+int enic_alloc_rq(struct enic *enic, uint16_t queue_idx,
+	unsigned int socket_id, struct rte_mempool *mp,
+	uint16_t nb_desc)
+{
+	int err;
+	struct vnic_rq *rq = &enic->rq[queue_idx];
+
+	rq->socket_id = socket_id;
+	rq->mp = mp;
+
+	if (nb_desc) {
+		if (nb_desc > enic->config.rq_desc_count) {
+			dev_warning(enic,
+				"RQ %d - number of rx desc in cmd line (%d)"\
+				"is greater than that in the UCSM/CIMC adapter"\
+				"policy.  Applying the value in the adapter "\
+				"policy (%d).\n",
+				queue_idx, nb_desc, enic->config.rq_desc_count);
+		} else if (nb_desc != enic->config.rq_desc_count) {
+			enic->config.rq_desc_count = nb_desc;
+			dev_info(enic,
+				"RX Queues - effective number of descs:%d\n",
+				nb_desc);
+		}
+	}
+
+	/* Allocate queue resources */
+	err = vnic_rq_alloc(enic->vdev, &enic->rq[queue_idx], queue_idx,
+		enic->config.rq_desc_count,
+		sizeof(struct rq_enet_desc));
+	if (err) {
+		dev_err(enic, "error in allocation of rq\n");
+		return err;
+	}
+
+	err = vnic_cq_alloc(enic->vdev, &enic->cq[queue_idx], queue_idx,
+		socket_id, enic->config.rq_desc_count,
+		sizeof(struct cq_enet_rq_desc));
+	if (err) {
+		vnic_rq_free(rq);
+		dev_err(enic, "error in allocation of cq for rq\n");
+	}
+
+	return err;
+}
+
+void enic_free_wq(void *txq)
+{
+	struct vnic_wq *wq = (struct vnic_wq *)txq;
+	struct enic *enic = vnic_dev_priv(wq->vdev);
+
+	vnic_wq_free(wq);
+	vnic_cq_free(&enic->cq[enic->rq_count + wq->index]);
+}
+
+int enic_alloc_wq(struct enic *enic, uint16_t queue_idx,
+	unsigned int socket_id, uint16_t nb_desc)
+{
+	int err;
+	struct vnic_wq *wq = &enic->wq[queue_idx];
+	unsigned int cq_index = enic_cq_wq(enic, queue_idx);
+
+	wq->socket_id = socket_id;
+	if (nb_desc) {
+		if (nb_desc > enic->config.wq_desc_count) {
+			dev_warning(enic,
+				"WQ %d - number of tx desc in cmd line (%d)"\
+				"is greater than that in the UCSM/CIMC adapter"\
+				"policy.  Applying the value in the adapter "\
+				"policy (%d)\n",
+				queue_idx, nb_desc, enic->config.wq_desc_count);
+		} else if (nb_desc != enic->config.wq_desc_count) {
+			enic->config.wq_desc_count = nb_desc;
+			dev_info(enic,
+				"TX Queues - effective number of descs:%d\n",
+				nb_desc);
+		}
+	}
+
+	/* Allocate queue resources */
+	err = vnic_wq_alloc(enic->vdev, &enic->wq[queue_idx], queue_idx,
+		enic->config.wq_desc_count,
+		sizeof(struct wq_enet_desc));
+	if (err) {
+		dev_err(enic, "error in allocation of wq\n");
+		return err;
+	}
+
+	err = vnic_cq_alloc(enic->vdev, &enic->cq[cq_index], cq_index,
+		socket_id, enic->config.wq_desc_count,
+		sizeof(struct cq_enet_wq_desc));
+	if (err) {
+		vnic_wq_free(wq);
+		dev_err(enic, "error in allocation of cq for wq\n");
+	}
+
+	return err;
+}
+
+int enic_disable(struct enic *enic)
+{
+	unsigned int i;
+	int err;
+
+	vnic_intr_mask(&enic->intr);
+	(void)vnic_intr_masked(&enic->intr); /* flush write */
+
+	vnic_dev_disable(enic->vdev);
+
+	enic_clsf_destroy(enic);
+
+	if (!enic_is_sriov_vf(enic))
+		vnic_dev_del_addr(enic->vdev, enic->mac_addr);
+
+	for (i = 0; i < enic->wq_count; i++) {
+		err = vnic_wq_disable(&enic->wq[i]);
+		if (err)
+			return err;
+	}
+	for (i = 0; i < enic->rq_count; i++) {
+		err = vnic_rq_disable(&enic->rq[i]);
+		if (err)
+			return err;
+	}
+
+	vnic_dev_set_reset_flag(enic->vdev, 1);
+	vnic_dev_notify_unset(enic->vdev);
+
+	for (i = 0; i < enic->wq_count; i++)
+		vnic_wq_clean(&enic->wq[i], enic_free_wq_buf);
+	for (i = 0; i < enic->rq_count; i++)
+		vnic_rq_clean(&enic->rq[i], enic_free_rq_buf);
+	for (i = 0; i < enic->cq_count; i++)
+		vnic_cq_clean(&enic->cq[i]);
+	vnic_intr_clean(&enic->intr);
+
+	return 0;
+}
+
+static int enic_dev_wait(struct vnic_dev *vdev,
+	int (*start)(struct vnic_dev *, int),
+	int (*finished)(struct vnic_dev *, int *),
+	int arg)
+{
+	int done;
+	int err;
+	int i;
+
+	err = start(vdev, arg);
+	if (err)
+		return err;
+
+	/* Wait for func to complete...2 seconds max */
+	for (i = 0; i < 2000; i++) {
+		err = finished(vdev, &done);
+		if (err)
+			return err;
+		if (done)
+			return 0;
+		usleep(1000);
+	}
+	return -ETIMEDOUT;
+}
+
+static int enic_dev_open(struct enic *enic)
+{
+	int err;
+
+	err = enic_dev_wait(enic->vdev, vnic_dev_open,
+		vnic_dev_open_done, 0);
+	if (err)
+		dev_err(enic_get_dev(enic),
+			"vNIC device open failed, err %d\n", err);
+
+	return err;
+}
+
+static int enic_set_rsskey(struct enic *enic)
+{
+	dma_addr_t rss_key_buf_pa;
+	union vnic_rss_key *rss_key_buf_va = NULL;
+	union vnic_rss_key rss_key = {
+		.key[0].b = {85, 67, 83, 97, 119, 101, 115, 111, 109, 101},
+		.key[1].b = {80, 65, 76, 79, 117, 110, 105, 113, 117, 101},
+		.key[2].b = {76, 73, 78, 85, 88, 114, 111, 99, 107, 115},
+		.key[3].b = {69, 78, 73, 67, 105, 115, 99, 111, 111, 108},
+	};
+	int err;
+	char name[NAME_MAX];
+
+	snprintf(name, NAME_MAX, "rss_key-%s", enic->bdf_name);
+	rss_key_buf_va = enic_alloc_consistent(enic, sizeof(union vnic_rss_key),
+		&rss_key_buf_pa, name);
+	if (!rss_key_buf_va)
+		return -ENOMEM;
+
+	rte_memcpy(rss_key_buf_va, &rss_key, sizeof(union vnic_rss_key));
+
+	err = enic_set_rss_key(enic,
+		rss_key_buf_pa,
+		sizeof(union vnic_rss_key));
+
+	enic_free_consistent(enic->pdev, sizeof(union vnic_rss_key),
+		rss_key_buf_va, rss_key_buf_pa);
+
+	return err;
+}
+
+static int enic_set_rsscpu(struct enic *enic, u8 rss_hash_bits)
+{
+	dma_addr_t rss_cpu_buf_pa;
+	union vnic_rss_cpu *rss_cpu_buf_va = NULL;
+	unsigned int i;
+	int err;
+	char name[NAME_MAX];
+
+	snprintf(name, NAME_MAX, "rss_cpu-%s", enic->bdf_name);
+	rss_cpu_buf_va = enic_alloc_consistent(enic, sizeof(union vnic_rss_cpu),
+		&rss_cpu_buf_pa, name);
+	if (!rss_cpu_buf_va)
+		return -ENOMEM;
+
+	for (i = 0; i < (1 << rss_hash_bits); i++)
+		(*rss_cpu_buf_va).cpu[i/4].b[i%4] = i % enic->rq_count;
+
+	err = enic_set_rss_cpu(enic,
+		rss_cpu_buf_pa,
+		sizeof(union vnic_rss_cpu));
+
+	enic_free_consistent(enic->pdev, sizeof(union vnic_rss_cpu),
+		rss_cpu_buf_va, rss_cpu_buf_pa);
+
+	return err;
+}
+
+static int enic_set_niccfg(struct enic *enic, u8 rss_default_cpu,
+	u8 rss_hash_type, u8 rss_hash_bits, u8 rss_base_cpu, u8 rss_enable)
+{
+	const u8 tso_ipid_split_en = 0;
+	int err;
+
+	/* Enable VLAN tag stripping */
+
+	err = enic_set_nic_cfg(enic,
+		rss_default_cpu, rss_hash_type,
+		rss_hash_bits, rss_base_cpu,
+		rss_enable, tso_ipid_split_en,
+		enic->ig_vlan_strip_en);
+
+	return err;
+}
+
+int enic_set_rss_nic_cfg(struct enic *enic)
+{
+	const u8 rss_default_cpu = 0;
+	const u8 rss_hash_type = NIC_CFG_RSS_HASH_TYPE_IPV4 |
+	    NIC_CFG_RSS_HASH_TYPE_TCP_IPV4 |
+	    NIC_CFG_RSS_HASH_TYPE_IPV6 |
+	    NIC_CFG_RSS_HASH_TYPE_TCP_IPV6;
+	const u8 rss_hash_bits = 7;
+	const u8 rss_base_cpu = 0;
+	u8 rss_enable = ENIC_SETTING(enic, RSS) && (enic->rq_count > 1);
+
+	if (rss_enable) {
+		if (!enic_set_rsskey(enic)) {
+			if (enic_set_rsscpu(enic, rss_hash_bits)) {
+				rss_enable = 0;
+				dev_warning(enic, "RSS disabled, "\
+					"Failed to set RSS cpu indirection table.");
+			}
+		} else {
+			rss_enable = 0;
+			dev_warning(enic,
+				"RSS disabled, Failed to set RSS key.\n");
+		}
+	}
+
+	return enic_set_niccfg(enic, rss_default_cpu, rss_hash_type,
+		rss_hash_bits, rss_base_cpu, rss_enable);
+}
+
+int enic_setup_finish(struct enic *enic)
+{
+	int ret;
+
+	ret = enic_set_rss_nic_cfg(enic);
+	if (ret) {
+		dev_err(enic, "Failed to config nic, aborting.\n");
+		return -1;
+	}
+
+	vnic_dev_add_addr(enic->vdev, enic->mac_addr);
+
+	/* Default conf */
+	vnic_dev_packet_filter(enic->vdev,
+		1 /* directed  */,
+		1 /* multicast */,
+		1 /* broadcast */,
+		0 /* promisc   */,
+		1 /* allmulti  */);
+
+	enic->promisc = 0;
+	enic->allmulti = 1;
+
+	return 0;
+}
+
+#ifdef RTE_EAL_VFIO
+static void enic_eventfd_init(struct enic *enic)
+{
+	enic->eventfd = enic->pdev->intr_handle.fd;
+}
+
+void *enic_err_intr_handler(void *arg)
+{
+	struct enic *enic = (struct enic *)arg;
+	unsigned int intr = enic_msix_err_intr(enic);
+	ssize_t size;
+	uint64_t data;
+
+	while (1) {
+		size = read(enic->eventfd, &data, sizeof(data));
+		dev_err(enic, "Err intr.\n");
+		vnic_intr_return_all_credits(&enic->intr);
+
+		enic_log_q_error(enic);
+	}
+
+	return NULL;
+}
+#endif
+
+void enic_add_packet_filter(struct enic *enic)
+{
+	/* Args -> directed, multicast, broadcast, promisc, allmulti */
+	vnic_dev_packet_filter(enic->vdev, 1, 1, 1,
+		enic->promisc, enic->allmulti);
+}
+
+int enic_get_link_status(struct enic *enic)
+{
+	return vnic_dev_link_status(enic->vdev);
+}
+
+
+#ifdef RTE_EAL_VFIO
+static int enic_create_err_intr_thread(struct enic *enic)
+{
+	pthread_attr_t intr_attr;
+
+	/* create threads for error interrupt handling */
+	pthread_attr_init(&intr_attr);
+	pthread_attr_setstacksize(&intr_attr, 0x100000);
+
+	/* ERR */
+	if (pthread_create(&enic->err_intr_thread, &intr_attr,
+		    enic_err_intr_handler, (void *)enic)) {
+		dev_err(enic, "Failed to create err interrupt handler threads\n");
+		return -1;
+	}
+
+	pthread_attr_destroy(&intr_attr);
+
+	return 0;
+}
+
+
+static int enic_set_intr_mode(struct enic *enic)
+{
+	struct vfio_irq_set *irq_set;
+	int *fds;
+	int size;
+	int ret = -1;
+	int index;
+
+	if (enic->intr_count < 1) {
+		dev_err(enic, "Unsupported resource conf.\n");
+		return -1;
+	}
+	vnic_dev_set_intr_mode(enic->vdev, VNIC_DEV_INTR_MODE_MSIX);
+
+	enic->intr_count = 1;
+
+	enic_eventfd_init(enic);
+	size = sizeof(*irq_set) + (sizeof(int));
+
+	irq_set = rte_zmalloc("enic_vfio_irq", size, 0);
+	irq_set->argsz = size;
+	irq_set->index = VFIO_PCI_MSIX_IRQ_INDEX;
+	irq_set->start = 0;
+	irq_set->count = 1; /* For error interrupt only */
+	irq_set->flags = VFIO_IRQ_SET_DATA_EVENTFD |
+	    VFIO_IRQ_SET_ACTION_TRIGGER;
+	fds = (int *)&irq_set->data;
+
+	fds[0] = enic->eventfd;
+
+	ret = ioctl(enic->pdev->intr_handle.vfio_dev_fd,
+		VFIO_DEVICE_SET_IRQS, irq_set);
+	rte_free(irq_set);
+	if (ret) {
+		dev_err(enic, "Failed to set eventfds for interrupts\n");
+		return -1;
+	}
+
+	enic_create_err_intr_thread(enic);
+	return 0;
+}
+
+static void enic_clear_intr_mode(struct enic *enic)
+{
+	vnic_dev_set_intr_mode(enic->vdev, VNIC_DEV_INTR_MODE_UNKNOWN);
+}
+#endif
+
+static void enic_dev_deinit(struct enic *enic)
+{
+	unsigned int i;
+	struct rte_eth_dev *eth_dev = enic->rte_dev;
+
+	if (eth_dev->data->mac_addrs)
+		rte_free(eth_dev->data->mac_addrs);
+
+#ifdef RTE_EAL_VFIO
+	enic_clear_intr_mode(enic);
+#endif
+}
+
+
+int enic_set_vnic_res(struct enic *enic)
+{
+	struct rte_eth_dev *eth_dev = enic->rte_dev;
+
+	if ((enic->rq_count < eth_dev->data->nb_rx_queues) ||
+		(enic->wq_count < eth_dev->data->nb_tx_queues)) {
+		dev_err(dev, "Not enough resources configured, aborting\n");
+		return -1;
+	}
+
+	enic->rq_count = eth_dev->data->nb_rx_queues;
+	enic->wq_count = eth_dev->data->nb_tx_queues;
+	if (enic->cq_count < (enic->rq_count + enic->wq_count)) {
+		dev_err(dev, "Not enough resources configured, aborting\n");
+		return -1;
+	}
+
+	enic->cq_count = enic->rq_count + enic->wq_count;
+	return 0;
+}
+
+static int enic_dev_init(struct enic *enic)
+{
+	unsigned int i;
+	int err;
+	struct rte_eth_dev *eth_dev = enic->rte_dev;
+
+	vnic_dev_intr_coal_timer_info_default(enic->vdev);
+
+	/* Get vNIC configuration
+	*/
+	err = enic_get_vnic_config(enic);
+	if (err) {
+		dev_err(dev, "Get vNIC configuration failed, aborting\n");
+		return err;
+	}
+
+	eth_dev->data->mac_addrs = rte_zmalloc("enic_mac_addr", ETH_ALEN, 0);
+	if (!eth_dev->data->mac_addrs) {
+		dev_err(enic, "mac addr storage alloc failed, aborting.\n");
+		return -1;
+	}
+	ether_addr_copy((struct ether_addr *) enic->mac_addr,
+		&eth_dev->data->mac_addrs[0]);
+
+
+	/* Get available resource counts
+	*/
+	enic_get_res_counts(enic);
+
+#ifdef RTE_EAL_VFIO
+	/* Set interrupt mode based on resource counts and system
+	 * capabilities
+	 */
+	err = enic_set_intr_mode(enic);
+	if (err) {
+		rte_free(eth_dev->data->mac_addrs);
+		enic_clear_intr_mode(enic);
+		dev_err(dev, "Failed to set intr mode based on resource "\
+			"counts and system capabilities, aborting\n");
+		return err;
+	}
+#endif
+
+	vnic_dev_set_reset_flag(enic->vdev, 0);
+
+	return 0;
+
+}
+
+int enic_probe(struct enic *enic)
+{
+	const char *bdf = enic->bdf_name;
+	struct rte_pci_device *pdev = enic->pdev;
+	struct rte_eth_dev *eth_dev = enic->rte_dev;
+	unsigned int i;
+	int err = -1;
+
+	dev_info(enic, " Initializing ENIC PMD version %s\n", DRV_VERSION);
+
+	enic->bar0.vaddr = (void *)pdev->mem_resource[0].addr;
+	enic->bar0.len = pdev->mem_resource[0].len;
+
+	/* Register vNIC device */
+	enic->vdev = vnic_dev_register(NULL, enic, enic->pdev, &enic->bar0, 1);
+	if (!enic->vdev) {
+		dev_err(enic, "vNIC registration failed, aborting\n");
+		goto err_out;
+	}
+
+	vnic_register_cbacks(enic->vdev,
+		enic_alloc_consistent,
+		enic_free_consistent);
+
+	/* Issue device open to get device in known state */
+	err = enic_dev_open(enic);
+	if (err) {
+		dev_err(enic, "vNIC dev open failed, aborting\n");
+		goto err_out_unregister;
+	}
+
+	/* Set ingress vlan rewrite mode before vnic initialization */
+	err = vnic_dev_set_ig_vlan_rewrite_mode(enic->vdev,
+		IG_VLAN_REWRITE_MODE_PRIORITY_TAG_DEFAULT_VLAN);
+	if (err) {
+		dev_err(enic,
+			"Failed to set ingress vlan rewrite mode, aborting.\n");
+		goto err_out_dev_close;
+	}
+
+	/* Issue device init to initialize the vnic-to-switch link.
+	 * We'll start with carrier off and wait for link UP
+	 * notification later to turn on carrier.  We don't need
+	 * to wait here for the vnic-to-switch link initialization
+	 * to complete; link UP notification is the indication that
+	 * the process is complete.
+	 */
+
+	err = vnic_dev_init(enic->vdev, 0);
+	if (err) {
+		dev_err(enic, "vNIC dev init failed, aborting\n");
+		goto err_out_dev_close;
+	}
+
+	err = enic_dev_init(enic);
+	if (err) {
+		dev_err(enic, "Device initialization failed, aborting\n");
+		goto err_out_dev_close;
+	}
+
+	return 0;
+
+err_out_dev_close:
+	vnic_dev_close(enic->vdev);
+err_out_unregister:
+	vnic_dev_unregister(enic->vdev);
+err_out:
+	return err;
+}
+
+void enic_remove(struct enic *enic)
+{
+	enic_dev_deinit(enic);
+	vnic_dev_close(enic->vdev);
+	vnic_dev_unregister(enic->vdev);
+}
+
diff --git a/lib/librte_pmd_enic/enic_res.c b/lib/librte_pmd_enic/enic_res.c
new file mode 100644
index 0000000..41bff3a
--- /dev/null
+++ b/lib/librte_pmd_enic/enic_res.c
@@ -0,0 +1,221 @@
+/*
+ * Copyright 2008-2010 Cisco Systems, Inc.  All rights reserved.
+ * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
+ *
+ * Copyright (c) 2014, Cisco Systems, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. 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.
+ *
+ * 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 HOLDER 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.
+ *
+ */
+#ident "$Id: enic_res.c 171146 2014-05-02 07:08:20Z ssujith $"
+
+#include "enic_compat.h"
+#include "rte_ethdev.h"
+#include "wq_enet_desc.h"
+#include "rq_enet_desc.h"
+#include "cq_enet_desc.h"
+#include "vnic_resource.h"
+#include "vnic_enet.h"
+#include "vnic_dev.h"
+#include "vnic_wq.h"
+#include "vnic_rq.h"
+#include "vnic_cq.h"
+#include "vnic_intr.h"
+#include "vnic_stats.h"
+#include "vnic_nic.h"
+#include "vnic_rss.h"
+#include "enic_res.h"
+#include "enic.h"
+
+int enic_get_vnic_config(struct enic *enic)
+{
+	struct vnic_enet_config *c = &enic->config;
+	int err;
+
+	err = vnic_dev_get_mac_addr(enic->vdev, enic->mac_addr);
+	if (err) {
+		dev_err(enic_get_dev(enic),
+			"Error getting MAC addr, %d\n", err);
+		return err;
+	}
+
+#define GET_CONFIG(m) \
+	do { \
+		err = vnic_dev_spec(enic->vdev, \
+			offsetof(struct vnic_enet_config, m), \
+			sizeof(c->m), &c->m); \
+		if (err) { \
+			dev_err(enic_get_dev(enic), \
+				"Error getting %s, %d\n", #m, err); \
+			return err; \
+		} \
+	} while (0)
+
+	GET_CONFIG(flags);
+	GET_CONFIG(wq_desc_count);
+	GET_CONFIG(rq_desc_count);
+	GET_CONFIG(mtu);
+	GET_CONFIG(intr_timer_type);
+	GET_CONFIG(intr_mode);
+	GET_CONFIG(intr_timer_usec);
+	GET_CONFIG(loop_tag);
+	GET_CONFIG(num_arfs);
+
+	c->wq_desc_count =
+		min_t(u32, ENIC_MAX_WQ_DESCS,
+		max_t(u32, ENIC_MIN_WQ_DESCS,
+		c->wq_desc_count));
+	c->wq_desc_count &= 0xffffffe0; /* must be aligned to groups of 32 */
+
+	c->rq_desc_count =
+		min_t(u32, ENIC_MAX_RQ_DESCS,
+		max_t(u32, ENIC_MIN_RQ_DESCS,
+		c->rq_desc_count));
+	c->rq_desc_count &= 0xffffffe0; /* must be aligned to groups of 32 */
+
+	if (c->mtu == 0)
+		c->mtu = 1500;
+	c->mtu = min_t(u16, ENIC_MAX_MTU,
+		max_t(u16, ENIC_MIN_MTU,
+		c->mtu));
+
+	c->intr_timer_usec = min_t(u32, c->intr_timer_usec,
+		vnic_dev_get_intr_coal_timer_max(enic->vdev));
+
+	dev_info(enic_get_dev(enic),
+		"vNIC MAC addr %02x:%02x:%02x:%02x:%02x:%02x "
+		"wq/rq %d/%d mtu %d\n",
+		enic->mac_addr[0], enic->mac_addr[1], enic->mac_addr[2],
+		enic->mac_addr[3], enic->mac_addr[4], enic->mac_addr[5],
+		c->wq_desc_count, c->rq_desc_count, c->mtu);
+	dev_info(enic_get_dev(enic), "vNIC csum tx/rx %s/%s "
+		"rss %s intr mode %s type %s timer %d usec "
+		"loopback tag 0x%04x\n",
+		ENIC_SETTING(enic, TXCSUM) ? "yes" : "no",
+		ENIC_SETTING(enic, RXCSUM) ? "yes" : "no",
+		ENIC_SETTING(enic, RSS) ? "yes" : "no",
+		c->intr_mode == VENET_INTR_MODE_INTX ? "INTx" :
+		c->intr_mode == VENET_INTR_MODE_MSI ? "MSI" :
+		c->intr_mode == VENET_INTR_MODE_ANY ? "any" :
+		"unknown",
+		c->intr_timer_type == VENET_INTR_TYPE_MIN ? "min" :
+		c->intr_timer_type == VENET_INTR_TYPE_IDLE ? "idle" :
+		"unknown",
+		c->intr_timer_usec,
+		c->loop_tag);
+
+	return 0;
+}
+
+int enic_add_vlan(struct enic *enic, u16 vlanid)
+{
+	u64 a0 = vlanid, a1 = 0;
+	int wait = 1000;
+	int err;
+
+	err = vnic_dev_cmd(enic->vdev, CMD_VLAN_ADD, &a0, &a1, wait);
+	if (err)
+		dev_err(enic_get_dev(enic), "Can't add vlan id, %d\n", err);
+
+	return err;
+}
+
+int enic_del_vlan(struct enic *enic, u16 vlanid)
+{
+	u64 a0 = vlanid, a1 = 0;
+	int wait = 1000;
+	int err;
+
+	err = vnic_dev_cmd(enic->vdev, CMD_VLAN_DEL, &a0, &a1, wait);
+	if (err)
+		dev_err(enic_get_dev(enic), "Can't delete vlan id, %d\n", err);
+
+	return err;
+}
+
+int enic_set_nic_cfg(struct enic *enic, u8 rss_default_cpu, u8 rss_hash_type,
+	u8 rss_hash_bits, u8 rss_base_cpu, u8 rss_enable, u8 tso_ipid_split_en,
+	u8 ig_vlan_strip_en)
+{
+	u64 a0, a1;
+	u32 nic_cfg;
+	int wait = 1000;
+
+	vnic_set_nic_cfg(&nic_cfg, rss_default_cpu,
+		rss_hash_type, rss_hash_bits, rss_base_cpu,
+		rss_enable, tso_ipid_split_en, ig_vlan_strip_en);
+
+	a0 = nic_cfg;
+	a1 = 0;
+
+	return vnic_dev_cmd(enic->vdev, CMD_NIC_CFG, &a0, &a1, wait);
+}
+
+int enic_set_rss_key(struct enic *enic, dma_addr_t key_pa, u64 len)
+{
+	u64 a0 = (u64)key_pa, a1 = len;
+	int wait = 1000;
+
+	return vnic_dev_cmd(enic->vdev, CMD_RSS_KEY, &a0, &a1, wait);
+}
+
+int enic_set_rss_cpu(struct enic *enic, dma_addr_t cpu_pa, u64 len)
+{
+	u64 a0 = (u64)cpu_pa, a1 = len;
+	int wait = 1000;
+
+	return vnic_dev_cmd(enic->vdev, CMD_RSS_CPU, &a0, &a1, wait);
+}
+
+void enic_free_vnic_resources(struct enic *enic)
+{
+	unsigned int i;
+
+	for (i = 0; i < enic->wq_count; i++)
+		vnic_wq_free(&enic->wq[i]);
+	for (i = 0; i < enic->rq_count; i++)
+		vnic_rq_free(&enic->rq[i]);
+	for (i = 0; i < enic->cq_count; i++)
+		vnic_cq_free(&enic->cq[i]);
+	vnic_intr_free(&enic->intr);
+}
+
+void enic_get_res_counts(struct enic *enic)
+{
+	enic->wq_count = vnic_dev_get_res_count(enic->vdev, RES_TYPE_WQ);
+	enic->rq_count = vnic_dev_get_res_count(enic->vdev, RES_TYPE_RQ);
+	enic->cq_count = vnic_dev_get_res_count(enic->vdev, RES_TYPE_CQ);
+	enic->intr_count = vnic_dev_get_res_count(enic->vdev,
+		RES_TYPE_INTR_CTRL);
+
+	dev_info(enic_get_dev(enic),
+		"vNIC resources avail: wq %d rq %d cq %d intr %d\n",
+		enic->wq_count, enic->rq_count,
+		enic->cq_count, enic->intr_count);
+}
+
+
diff --git a/lib/librte_pmd_enic/enic_res.h b/lib/librte_pmd_enic/enic_res.h
new file mode 100644
index 0000000..ea60f6a
--- /dev/null
+++ b/lib/librte_pmd_enic/enic_res.h
@@ -0,0 +1,168 @@
+/*
+ * Copyright 2008-2010 Cisco Systems, Inc.  All rights reserved.
+ * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
+ *
+ * Copyright (c) 2014, Cisco Systems, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. 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.
+ *
+ * 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 HOLDER 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.
+ *
+ */
+#ident "$Id: enic_res.h 173137 2014-05-16 03:27:22Z sanpilla $"
+
+#ifndef _ENIC_RES_H_
+#define _ENIC_RES_H_
+
+#include "wq_enet_desc.h"
+#include "rq_enet_desc.h"
+#include "vnic_wq.h"
+#include "vnic_rq.h"
+
+#define ENIC_MIN_WQ_DESCS		64
+#define ENIC_MAX_WQ_DESCS		4096
+#define ENIC_MIN_RQ_DESCS		64
+#define ENIC_MAX_RQ_DESCS		4096
+
+#define ENIC_MIN_MTU			68
+#define ENIC_MAX_MTU			9000
+
+#define ENIC_MULTICAST_PERFECT_FILTERS	32
+#define ENIC_UNICAST_PERFECT_FILTERS	32
+
+#define ENIC_NON_TSO_MAX_DESC		16
+
+#define ENIC_SETTING(enic, f) ((enic->config.flags & VENETF_##f) ? 1 : 0)
+
+static inline void enic_queue_wq_desc_ex(struct vnic_wq *wq,
+	void *os_buf, dma_addr_t dma_addr, unsigned int len,
+	unsigned int mss_or_csum_offset, unsigned int hdr_len,
+	int vlan_tag_insert, unsigned int vlan_tag,
+	int offload_mode, int cq_entry, int sop, int eop, int loopback)
+{
+	struct wq_enet_desc *desc = vnic_wq_next_desc(wq);
+	u8 desc_skip_cnt = 1;
+	u8 compressed_send = 0;
+	u64 wrid = 0;
+
+	wq_enet_desc_enc(desc,
+		(u64)dma_addr | VNIC_PADDR_TARGET,
+		(u16)len,
+		(u16)mss_or_csum_offset,
+		(u16)hdr_len, (u8)offload_mode,
+		(u8)eop, (u8)cq_entry,
+		0, /* fcoe_encap */
+		(u8)vlan_tag_insert,
+		(u16)vlan_tag,
+		(u8)loopback);
+
+	vnic_wq_post(wq, os_buf, dma_addr, len, sop, eop, desc_skip_cnt,
+			(u8)cq_entry, compressed_send, wrid);
+}
+
+static inline void enic_queue_wq_desc_cont(struct vnic_wq *wq,
+	void *os_buf, dma_addr_t dma_addr, unsigned int len,
+	int eop, int loopback)
+{
+	enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
+		0, 0, 0, 0, 0,
+		eop, 0 /* !SOP */, eop, loopback);
+}
+
+static inline void enic_queue_wq_desc(struct vnic_wq *wq, void *os_buf,
+	dma_addr_t dma_addr, unsigned int len, int vlan_tag_insert,
+	unsigned int vlan_tag, int eop, int loopback)
+{
+	enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
+		0, 0, vlan_tag_insert, vlan_tag,
+		WQ_ENET_OFFLOAD_MODE_CSUM,
+		eop, 1 /* SOP */, eop, loopback);
+}
+
+static inline void enic_queue_wq_desc_csum(struct vnic_wq *wq,
+	void *os_buf, dma_addr_t dma_addr, unsigned int len,
+	int ip_csum, int tcpudp_csum, int vlan_tag_insert,
+	unsigned int vlan_tag, int eop, int loopback)
+{
+	enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
+		(ip_csum ? 1 : 0) + (tcpudp_csum ? 2 : 0),
+		0, vlan_tag_insert, vlan_tag,
+		WQ_ENET_OFFLOAD_MODE_CSUM,
+		eop, 1 /* SOP */, eop, loopback);
+}
+
+static inline void enic_queue_wq_desc_csum_l4(struct vnic_wq *wq,
+	void *os_buf, dma_addr_t dma_addr, unsigned int len,
+	unsigned int csum_offset, unsigned int hdr_len,
+	int vlan_tag_insert, unsigned int vlan_tag, int eop, int loopback)
+{
+	enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
+		csum_offset, hdr_len, vlan_tag_insert, vlan_tag,
+		WQ_ENET_OFFLOAD_MODE_CSUM_L4,
+		eop, 1 /* SOP */, eop, loopback);
+}
+
+static inline void enic_queue_wq_desc_tso(struct vnic_wq *wq,
+	void *os_buf, dma_addr_t dma_addr, unsigned int len,
+	unsigned int mss, unsigned int hdr_len, int vlan_tag_insert,
+	unsigned int vlan_tag, int eop, int loopback)
+{
+	enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
+		mss, hdr_len, vlan_tag_insert, vlan_tag,
+		WQ_ENET_OFFLOAD_MODE_TSO,
+		eop, 1 /* SOP */, eop, loopback);
+}
+static inline void enic_queue_rq_desc(struct vnic_rq *rq,
+	void *os_buf, unsigned int os_buf_index,
+	dma_addr_t dma_addr, unsigned int len)
+{
+	struct rq_enet_desc *desc = vnic_rq_next_desc(rq);
+	u64 wrid = 0;
+	u8 type = os_buf_index ?
+		RQ_ENET_TYPE_NOT_SOP : RQ_ENET_TYPE_ONLY_SOP;
+
+	rq_enet_desc_enc(desc,
+		(u64)dma_addr | VNIC_PADDR_TARGET,
+		type, (u16)len);
+
+	vnic_rq_post(rq, os_buf, os_buf_index, dma_addr, len, wrid);
+}
+
+struct enic;
+
+int enic_get_vnic_config(struct enic *);
+int enic_add_vlan(struct enic *enic, u16 vlanid);
+int enic_del_vlan(struct enic *enic, u16 vlanid);
+int enic_set_nic_cfg(struct enic *enic, u8 rss_default_cpu, u8 rss_hash_type,
+	u8 rss_hash_bits, u8 rss_base_cpu, u8 rss_enable, u8 tso_ipid_split_en,
+	u8 ig_vlan_strip_en);
+int enic_set_rss_key(struct enic *enic, dma_addr_t key_pa, u64 len);
+int enic_set_rss_cpu(struct enic *enic, dma_addr_t cpu_pa, u64 len);
+void enic_get_res_counts(struct enic *enic);
+void enic_init_vnic_resources(struct enic *enic);
+int enic_alloc_vnic_resources(struct enic *);
+void enic_free_vnic_resources(struct enic *);
+
+#endif /* _ENIC_RES_H_ */
-- 
1.9.1