New upstream version 18.08upstream/18.08

Change-Id: I32fdf5e5016556d9c0a6d88ddaf1fc468961790a
Signed-off-by: Luca Boccassi <luca.boccassi@gmail.com>

76 files changed, 5911 insertions, 905 deletions

diff --git a/drivers/bus/Makefile b/drivers/bus/Makefile
index 7ef25939..cea3b55e 100644
--- a/drivers/bus/Makefile
+++ b/drivers/bus/Makefile
@@ -4,8 +4,12 @@
 include $(RTE_SDK)/mk/rte.vars.mk
 
 DIRS-$(CONFIG_RTE_LIBRTE_DPAA_BUS) += dpaa
+ifeq ($(CONFIG_RTE_EAL_VFIO),y)
 DIRS-$(CONFIG_RTE_LIBRTE_FSLMC_BUS) += fslmc
+endif
+DIRS-$(CONFIG_RTE_LIBRTE_IFPGA_BUS) += ifpga
 DIRS-$(CONFIG_RTE_LIBRTE_PCI_BUS) += pci
 DIRS-$(CONFIG_RTE_LIBRTE_VDEV_BUS) += vdev
+DIRS-$(CONFIG_RTE_LIBRTE_VMBUS) += vmbus
 
 include $(RTE_SDK)/mk/rte.subdir.mk
diff --git a/drivers/bus/dpaa/base/fman/fman.c b/drivers/bus/dpaa/base/fman/fman.c
index bda62e01..bdb70042 100644
--- a/drivers/bus/dpaa/base/fman/fman.c
+++ b/drivers/bus/dpaa/base/fman/fman.c
@@ -300,7 +300,7 @@ fman_if_init(const struct device_node *dpa_node)
 
 	_errno = fman_get_mac_index(regs_addr_host, &__if->__if.mac_idx);
 	if (_errno) {
-		FMAN_ERR(-EINVAL, "Invalid register address: %lu",
+		FMAN_ERR(-EINVAL, "Invalid register address: %" PRIx64,
 			 regs_addr_host);
 		goto err;
 	}
@@ -442,6 +442,7 @@ fman_if_init(const struct device_node *dpa_node)
 		if (!pool_node) {
 			FMAN_ERR(-ENXIO, "%s: bad fsl,bman-buffer-pools\n",
 				 dname);
+			free(bpool);
 			goto err;
 		}
 		pname = pool_node->full_name;
@@ -449,6 +450,7 @@ fman_if_init(const struct device_node *dpa_node)
 		prop = of_get_property(pool_node, "fsl,bpid", &proplen);
 		if (!prop) {
 			FMAN_ERR(-EINVAL, "%s: no fsl,bpid\n", pname);
+			free(bpool);
 			goto err;
 		}
 		assert(proplen == sizeof(*prop));
@@ -502,7 +504,7 @@ fman_if_init(const struct device_node *dpa_node)
 
 	/* Parsing of the network interface is complete, add it to the list */
 	DPAA_BUS_LOG(DEBUG, "Found %s, Tx Channel = %x, FMAN = %x,"
-		    "Port ID = %x\n",
+		    "Port ID = %x",
 		    dname, __if->__if.tx_channel_id, __if->__if.fman_idx,
 		    __if->__if.mac_idx);
 
diff --git a/drivers/bus/dpaa/base/fman/fman_hw.c b/drivers/bus/dpaa/base/fman/fman_hw.c
index 0148b98e..4ebbc3d3 100644
--- a/drivers/bus/dpaa/base/fman/fman_hw.c
+++ b/drivers/bus/dpaa/base/fman/fman_hw.c
@@ -16,6 +16,9 @@
 #include <fsl_fman_crc64.h>
 #include <fsl_bman.h>
 
+#define FMAN_SP_SG_DISABLE                          0x80000000
+#define FMAN_SP_EXT_BUF_MARG_START_SHIFT            16
+
 /* Instantiate the global variable that the inline CRC64 implementation (in
  * <fsl_fman.h>) depends on.
  */
@@ -422,20 +425,16 @@ fman_if_set_fc_quanta(struct fman_if *fm_if, u16 pause_quanta)
 int
 fman_if_get_fdoff(struct fman_if *fm_if)
 {
-	u32 fmbm_ricp;
+	u32 fmbm_rebm;
 	int fdoff;
-	int iceof_mask = 0x001f0000;
-	int icsz_mask = 0x0000001f;
 
 	struct __fman_if *__if = container_of(fm_if, struct __fman_if, __if);
 
 	assert(fman_ccsr_map_fd != -1);
 
-	fmbm_ricp =
-		   in_be32(&((struct rx_bmi_regs *)__if->bmi_map)->fmbm_ricp);
-	/*iceof + icsz*/
-	fdoff = ((fmbm_ricp & iceof_mask) >> 16) * 16 +
-		(fmbm_ricp & icsz_mask) * 16;
+	fmbm_rebm = in_be32(&((struct rx_bmi_regs *)__if->bmi_map)->fmbm_rebm);
+
+	fdoff = (fmbm_rebm >> FMAN_SP_EXT_BUF_MARG_START_SHIFT) & 0x1ff;
 
 	return fdoff;
 }
@@ -502,12 +501,16 @@ fman_if_set_fdoff(struct fman_if *fm_if, uint32_t fd_offset)
 {
 	struct __fman_if *__if = container_of(fm_if, struct __fman_if, __if);
 	unsigned int *fmbm_rebm;
+	int val = 0;
+	int fmbm_mask = 0x01ff0000;
+
+	val = fd_offset << FMAN_SP_EXT_BUF_MARG_START_SHIFT;
 
 	assert(fman_ccsr_map_fd != -1);
 
 	fmbm_rebm = &((struct rx_bmi_regs *)__if->bmi_map)->fmbm_rebm;
 
-	out_be32(fmbm_rebm, in_be32(fmbm_rebm) | (fd_offset << 16));
+	out_be32(fmbm_rebm, (in_be32(fmbm_rebm) & ~fmbm_mask) | val);
 }
 
 void
@@ -536,6 +539,47 @@ fman_if_get_maxfrm(struct fman_if *fm_if)
 	return (in_be32(reg_maxfrm) | 0x0000FFFF);
 }
 
+/* MSB in fmbm_rebm register
+ * 0 - If BMI cannot store the frame in a single buffer it may select a buffer
+ *     of smaller size and store the frame in scatter gather (S/G) buffers
+ * 1 - Scatter gather format is not enabled for frame storage. If BMI cannot
+ *     store the frame in a single buffer, the frame is discarded.
+ */
+
+int
+fman_if_get_sg_enable(struct fman_if *fm_if)
+{
+	u32 fmbm_rebm;
+
+	struct __fman_if *__if = container_of(fm_if, struct __fman_if, __if);
+
+	assert(fman_ccsr_map_fd != -1);
+
+	fmbm_rebm = in_be32(&((struct rx_bmi_regs *)__if->bmi_map)->fmbm_rebm);
+
+	return (fmbm_rebm & FMAN_SP_SG_DISABLE) ? 0 : 1;
+}
+
+void
+fman_if_set_sg(struct fman_if *fm_if, int enable)
+{
+	struct __fman_if *__if = container_of(fm_if, struct __fman_if, __if);
+	unsigned int *fmbm_rebm;
+	int val;
+	int fmbm_mask = FMAN_SP_SG_DISABLE;
+
+	if (enable)
+		val = 0;
+	else
+		val = FMAN_SP_SG_DISABLE;
+
+	assert(fman_ccsr_map_fd != -1);
+
+	fmbm_rebm = &((struct rx_bmi_regs *)__if->bmi_map)->fmbm_rebm;
+
+	out_be32(fmbm_rebm, (in_be32(fmbm_rebm) & ~fmbm_mask) | val);
+}
+
 void
 fman_if_set_dnia(struct fman_if *fm_if, uint32_t nia)
 {
diff --git a/drivers/bus/dpaa/base/fman/netcfg_layer.c b/drivers/bus/dpaa/base/fman/netcfg_layer.c
index 3e956ce1..031c6f1a 100644
--- a/drivers/bus/dpaa/base/fman/netcfg_layer.c
+++ b/drivers/bus/dpaa/base/fman/netcfg_layer.c
@@ -18,11 +18,6 @@
 #include <rte_dpaa_logs.h>
 #include <netcfg.h>
 
-/* Structure contains information about all the interfaces given by user
- * on command line.
- */
-struct netcfg_interface *netcfg_interface;
-
 /* This data structure contaings all configurations information
  * related to usages of DPA devices.
  */
diff --git a/drivers/bus/dpaa/base/fman/of.c b/drivers/bus/dpaa/base/fman/of.c
index 1b2dbe26..a7f3174e 100644
--- a/drivers/bus/dpaa/base/fman/of.c
+++ b/drivers/bus/dpaa/base/fman/of.c
@@ -182,6 +182,11 @@ linear_dir(struct dt_dir *d)
 				DPAA_BUS_LOG(DEBUG, "Duplicate lphandle in %s",
 					     d->node.node.full_name);
 			d->lphandle = f;
+		} else if (!strcmp(f->node.node.name, "phandle")) {
+			if (d->lphandle)
+				DPAA_BUS_LOG(DEBUG, "Duplicate lphandle in %s",
+					     d->node.node.full_name);
+			d->lphandle = f;
 		} else if (!strcmp(f->node.node.name, "#address-cells")) {
 			if (d->a_cells)
 				DPAA_BUS_LOG(DEBUG, "Duplicate a_cells in %s",
@@ -541,3 +546,42 @@ of_device_is_compatible(const struct device_node *dev_node,
 		return true;
 	return false;
 }
+
+static const void *of_get_mac_addr(const struct device_node *np,
+		const char *name)
+{
+	return of_get_property(np, name, NULL);
+}
+
+/**
+ * Search the device tree for the best MAC address to use.  'mac-address' is
+ * checked first, because that is supposed to contain to "most recent" MAC
+ * address. If that isn't set, then 'local-mac-address' is checked next,
+ * because that is the default address.  If that isn't set, then the obsolete
+ * 'address' is checked, just in case we're using an old device tree.
+ *
+ * Note that the 'address' property is supposed to contain a virtual address of
+ * the register set, but some DTS files have redefined that property to be the
+ * MAC address.
+ *
+ * All-zero MAC addresses are rejected, because those could be properties that
+ * exist in the device tree, but were not set by U-Boot.  For example, the
+ * DTS could define 'mac-address' and 'local-mac-address', with zero MAC
+ * addresses.  Some older U-Boots only initialized 'local-mac-address'.  In
+ * this case, the real MAC is in 'local-mac-address', and 'mac-address' exists
+ * but is all zeros.
+ */
+const void *of_get_mac_address(const struct device_node *np)
+{
+	const void *addr;
+
+	addr = of_get_mac_addr(np, "mac-address");
+	if (addr)
+		return addr;
+
+	addr = of_get_mac_addr(np, "local-mac-address");
+	if (addr)
+		return addr;
+
+	return of_get_mac_addr(np, "address");
+}
diff --git a/drivers/bus/dpaa/base/qbman/bman_driver.c b/drivers/bus/dpaa/base/qbman/bman_driver.c
index a1ef3921..b14b5905 100644
--- a/drivers/bus/dpaa/base/qbman/bman_driver.c
+++ b/drivers/bus/dpaa/base/qbman/bman_driver.c
@@ -15,9 +15,9 @@
 /*
  * Global variables of the max portal/pool number this bman version supported
  */
-u16 bman_ip_rev;
+static u16 bman_ip_rev;
 u16 bman_pool_max;
-void *bman_ccsr_map;
+static void *bman_ccsr_map;
 
 /*****************/
 /* Portal driver */
@@ -161,7 +161,7 @@ int bman_init_ccsr(const struct device_node *node)
 			     PROT_WRITE, MAP_SHARED, ccsr_map_fd, phys_addr);
 	if (bman_ccsr_map == MAP_FAILED) {
 		pr_err("Can not map BMan CCSR base Bman: "
-		       "0x%x Phys: 0x%lx size 0x%lx",
+		       "0x%x Phys: 0x%" PRIx64 " size 0x%" PRIu64,
 		       *bman_addr, phys_addr, regs_size);
 		return -EINVAL;
 	}
diff --git a/drivers/bus/dpaa/base/qbman/qman.c b/drivers/bus/dpaa/base/qbman/qman.c
index 2b97671b..7c17027f 100644
--- a/drivers/bus/dpaa/base/qbman/qman.c
+++ b/drivers/bus/dpaa/base/qbman/qman.c
@@ -314,9 +314,9 @@ loop:
 		if (!msg)
 			return 0;
 	}
-	if ((msg->verb & QM_MR_VERB_TYPE_MASK) != QM_MR_VERB_FQRNI) {
+	if ((msg->ern.verb & QM_MR_VERB_TYPE_MASK) != QM_MR_VERB_FQRNI) {
 		/* We aren't draining anything but FQRNIs */
-		pr_err("Found verb 0x%x in MR\n", msg->verb);
+		pr_err("Found verb 0x%x in MR\n", msg->ern.verb);
 		return -1;
 	}
 	qm_mr_next(p);
@@ -483,7 +483,7 @@ static inline void qm_mr_pvb_update(struct qm_portal *portal)
 	/* when accessing 'verb', use __raw_readb() to ensure that compiler
 	 * inlining doesn't try to optimise out "excess reads".
 	 */
-	if ((__raw_readb(&res->verb) & QM_MR_VERB_VBIT) == mr->vbit) {
+	if ((__raw_readb(&res->ern.verb) & QM_MR_VERB_VBIT) == mr->vbit) {
 		mr->pi = (mr->pi + 1) & (QM_MR_SIZE - 1);
 		if (!mr->pi)
 			mr->vbit ^= QM_MR_VERB_VBIT;
@@ -625,7 +625,7 @@ fail_eqcr:
 
 #define MAX_GLOBAL_PORTALS 8
 static struct qman_portal global_portals[MAX_GLOBAL_PORTALS];
-rte_atomic16_t global_portals_used[MAX_GLOBAL_PORTALS];
+static rte_atomic16_t global_portals_used[MAX_GLOBAL_PORTALS];
 
 static struct qman_portal *
 qman_alloc_global_portal(void)
@@ -832,7 +832,7 @@ mr_loop:
 			goto mr_done;
 		swapped_msg = *msg;
 		hw_fd_to_cpu(&swapped_msg.ern.fd);
-		verb = msg->verb & QM_MR_VERB_TYPE_MASK;
+		verb = msg->ern.verb & QM_MR_VERB_TYPE_MASK;
 		/* The message is a software ERN iff the 0x20 bit is set */
 		if (verb & 0x20) {
 			switch (verb) {
@@ -1058,7 +1058,7 @@ unsigned int qman_portal_poll_rx(unsigned int poll_limit,
 	struct qm_portal *portal = &p->p;
 	register struct qm_dqrr *dqrr = &portal->dqrr;
 	struct qm_dqrr_entry *dq[QM_DQRR_SIZE], *shadow[QM_DQRR_SIZE];
-	struct qman_fq *fq[QM_DQRR_SIZE];
+	struct qman_fq *fq;
 	unsigned int limit = 0, rx_number = 0;
 	uint32_t consume = 0;
 
@@ -1087,18 +1087,18 @@ unsigned int qman_portal_poll_rx(unsigned int poll_limit,
 		shadow[rx_number]->fd.opaque =
 			be32_to_cpu(dq[rx_number]->fd.opaque);
 #else
-		shadow = dq;
+		shadow[rx_number] = dq[rx_number];
 #endif
 
 		/* SDQCR: context_b points to the FQ */
 #ifdef CONFIG_FSL_QMAN_FQ_LOOKUP
-		fq[rx_number] = qman_fq_lookup_table[be32_to_cpu(
-						dq[rx_number]->contextB)];
+		fq = qman_fq_lookup_table[be32_to_cpu(dq[rx_number]->contextB)];
 #else
-		fq[rx_number] = (void *)(uintptr_t)be32_to_cpu(dq->contextB);
+		fq = (void *)be32_to_cpu(dq[rx_number]->contextB);
 #endif
-		fq[rx_number]->cb.dqrr_prepare(shadow[rx_number],
-						 &bufs[rx_number]);
+		if (fq->cb.dqrr_prepare)
+			fq->cb.dqrr_prepare(shadow[rx_number],
+					    &bufs[rx_number]);
 
 		consume |= (1 << (31 - DQRR_PTR2IDX(shadow[rx_number])));
 		rx_number++;
@@ -1106,7 +1106,7 @@ unsigned int qman_portal_poll_rx(unsigned int poll_limit,
 	} while (++limit < poll_limit);
 
 	if (rx_number)
-		fq[0]->cb.dqrr_dpdk_pull_cb(fq, shadow, bufs, rx_number);
+		fq->cb.dqrr_dpdk_pull_cb(&fq, shadow, bufs, rx_number);
 
 	/* Consume all the DQRR enries together */
 	qm_out(DQRR_DCAP, (1 << 8) | consume);
@@ -1665,7 +1665,7 @@ int qman_retire_fq(struct qman_fq *fq, u32 *flags)
 			 */
 			struct qm_mr_entry msg;
 
-			msg.verb = QM_MR_VERB_FQRNI;
+			msg.ern.verb = QM_MR_VERB_FQRNI;
 			msg.fq.fqs = mcr->alterfq.fqs;
 			msg.fq.fqid = fq->fqid;
 #ifdef CONFIG_FSL_QMAN_FQ_LOOKUP
@@ -2002,13 +2002,13 @@ int qman_query_congestion(struct qm_mcr_querycongestion *congestion)
 	return 0;
 }
 
-int qman_set_vdq(struct qman_fq *fq, u16 num)
+int qman_set_vdq(struct qman_fq *fq, u16 num, uint32_t vdqcr_flags)
 {
 	struct qman_portal *p = get_affine_portal();
 	uint32_t vdqcr;
 	int ret = -EBUSY;
 
-	vdqcr = QM_VDQCR_EXACT;
+	vdqcr = vdqcr_flags;
 	vdqcr |= QM_VDQCR_NUMFRAMES_SET(num);
 
 	if ((fq->state != qman_fq_state_parked) &&
@@ -2642,7 +2642,7 @@ int qman_shutdown_fq(u32 fqid)
 				qm_mr_pvb_update(low_p);
 				msg = qm_mr_current(low_p);
 				while (msg) {
-					if ((msg->verb &
+					if ((msg->ern.verb &
 					     QM_MR_VERB_TYPE_MASK)
 					    == QM_MR_VERB_FQRN)
 						found_fqrn = 1;
@@ -2710,7 +2710,7 @@ int qman_shutdown_fq(u32 fqid)
 			qm_mr_pvb_update(low_p);
 			msg = qm_mr_current(low_p);
 			while (msg) {
-				if ((msg->verb & QM_MR_VERB_TYPE_MASK) ==
+				if ((msg->ern.verb & QM_MR_VERB_TYPE_MASK) ==
 				    QM_MR_VERB_FQRL)
 					orl_empty = 1;
 				qm_mr_next(low_p);
diff --git a/drivers/bus/dpaa/base/qbman/qman_driver.c b/drivers/bus/dpaa/base/qbman/qman_driver.c
index 7cfa8ee4..f6ecd6b2 100644
--- a/drivers/bus/dpaa/base/qbman/qman_driver.c
+++ b/drivers/bus/dpaa/base/qbman/qman_driver.c
@@ -20,9 +20,9 @@ u16 qm_channel_caam = QMAN_CHANNEL_CAAM;
 u16 qm_channel_pme = QMAN_CHANNEL_PME;
 
 /* Ccsr map address to access ccsrbased register */
-void *qman_ccsr_map;
+static void *qman_ccsr_map;
 /* The qman clock frequency */
-u32 qman_clk;
+static u32 qman_clk;
 
 static __thread int qmfd = -1;
 static __thread struct qm_portal_config qpcfg;
@@ -160,6 +160,7 @@ struct qman_portal *fsl_qman_portal_create(void)
 				     &cpuset);
 	if (ret) {
 		error(0, ret, "pthread_getaffinity_np()");
+		kfree(q_pcfg);
 		return NULL;
 	}
 
@@ -168,12 +169,14 @@ struct qman_portal *fsl_qman_portal_create(void)
 		if (CPU_ISSET(loop, &cpuset)) {
 			if (q_pcfg->cpu != -1) {
 				pr_err("Thread is not affine to 1 cpu\n");
+				kfree(q_pcfg);
 				return NULL;
 			}
 			q_pcfg->cpu = loop;
 		}
 	if (q_pcfg->cpu == -1) {
 		pr_err("Bug in getaffinity handling!\n");
+		kfree(q_pcfg);
 		return NULL;
 	}
 
@@ -183,6 +186,7 @@ struct qman_portal *fsl_qman_portal_create(void)
 	ret = process_portal_map(&q_map);
 	if (ret) {
 		error(0, ret, "process_portal_map()");
+		kfree(q_pcfg);
 		return NULL;
 	}
 	q_pcfg->channel = q_map.channel;
@@ -217,6 +221,7 @@ err2:
 	close(q_fd);
 err1:
 	process_portal_unmap(&q_map.addr);
+	kfree(q_pcfg);
 	return NULL;
 }
 
@@ -246,7 +251,6 @@ int fsl_qman_portal_destroy(struct qman_portal *qp)
 int qman_global_init(void)
 {
 	const struct device_node *dt_node;
-	int ret = 0;
 	size_t lenp;
 	const u32 *chanid;
 	static int ccsr_map_fd;
@@ -352,9 +356,7 @@ int qman_global_init(void)
 		qman_clk = be32_to_cpu(*clk);
 
 #ifdef CONFIG_FSL_QMAN_FQ_LOOKUP
-	ret = qman_setup_fq_lookup_table(CONFIG_FSL_QMAN_FQ_LOOKUP_MAX);
-	if (ret)
-		return ret;
+	return qman_setup_fq_lookup_table(CONFIG_FSL_QMAN_FQ_LOOKUP_MAX);
 #endif
 	return 0;
 }
diff --git a/drivers/bus/dpaa/base/qbman/qman_priv.h b/drivers/bus/dpaa/base/qbman/qman_priv.h
index 9e4471e6..02f6301f 100644
--- a/drivers/bus/dpaa/base/qbman/qman_priv.h
+++ b/drivers/bus/dpaa/base/qbman/qman_priv.h
@@ -139,7 +139,6 @@ struct qm_portal_config {
 #define QMAN_REV31 0x0301
 #define QMAN_REV32 0x0302
 extern u16 qman_ip_rev; /* 0 if uninitialised, otherwise QMAN_REVx */
-extern u32 qman_clk;
 
 int qm_set_wpm(int wpm);
 int qm_get_wpm(int *wpm);
diff --git a/drivers/bus/dpaa/dpaa_bus.c b/drivers/bus/dpaa/dpaa_bus.c
index f2bb3b15..16fabd1b 100644
--- a/drivers/bus/dpaa/dpaa_bus.c
+++ b/drivers/bus/dpaa/dpaa_bus.c
@@ -19,7 +19,6 @@
 #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>
@@ -51,10 +50,12 @@ struct rte_dpaa_bus rte_dpaa_bus;
 struct netcfg_info *dpaa_netcfg;
 
 /* define a variable to hold the portal_key, once created.*/
-pthread_key_t dpaa_portal_key;
+static pthread_key_t dpaa_portal_key;
 
 unsigned int dpaa_svr_family;
 
+#define FSL_DPAA_BUS_NAME	dpaa_bus
+
 RTE_DEFINE_PER_LCORE(bool, dpaa_io);
 RTE_DEFINE_PER_LCORE(struct dpaa_portal_dqrr, held_bufs);
 
@@ -130,6 +131,22 @@ dpaa_sec_available(void)
 
 static void dpaa_clean_device_list(void);
 
+static struct rte_devargs *
+dpaa_devargs_lookup(struct rte_dpaa_device *dev)
+{
+	struct rte_devargs *devargs;
+	char dev_name[32];
+
+	RTE_EAL_DEVARGS_FOREACH("dpaa_bus", devargs) {
+		devargs->bus->parse(devargs->name, &dev_name);
+		if (strcmp(dev_name, dev->device.name) == 0) {
+			DPAA_BUS_INFO("**Devargs matched %s", dev_name);
+			return devargs;
+		}
+	}
+	return NULL;
+}
+
 static int
 dpaa_create_device_list(void)
 {
@@ -161,8 +178,9 @@ dpaa_create_device_list(void)
 		memset(dev->name, 0, RTE_ETH_NAME_MAX_LEN);
 		sprintf(dev->name, "fm%d-mac%d", (fman_intf->fman_idx + 1),
 			fman_intf->mac_idx);
-		DPAA_BUS_LOG(DEBUG, "Device added: %s", dev->name);
+		DPAA_BUS_LOG(INFO, "%s netdev added", dev->name);
 		dev->device.name = dev->name;
+		dev->device.devargs = dpaa_devargs_lookup(dev);
 
 		dpaa_add_to_device_list(dev);
 	}
@@ -198,7 +216,9 @@ dpaa_create_device_list(void)
 		 */
 		memset(dev->name, 0, RTE_ETH_NAME_MAX_LEN);
 		sprintf(dev->name, "dpaa-sec%d", i);
-		DPAA_BUS_LOG(DEBUG, "Device added: %s", dev->name);
+		DPAA_BUS_LOG(INFO, "%s cryptodev added", dev->name);
+		dev->device.name = dev->name;
+		dev->device.devargs = dpaa_devargs_lookup(dev);
 
 		dpaa_add_to_device_list(dev);
 	}
@@ -235,7 +255,7 @@ int rte_dpaa_portal_init(void *arg)
 
 	BUS_INIT_FUNC_TRACE();
 
-	if ((uint64_t)arg == 1 || cpu == LCORE_ID_ANY)
+	if ((size_t)arg == 1 || cpu == LCORE_ID_ANY)
 		cpu = rte_get_master_lcore();
 	/* if the core id is not supported */
 	else
@@ -309,9 +329,15 @@ rte_dpaa_portal_fq_init(void *arg, struct qman_fq *fq)
 	/* Affine above created portal with channel*/
 	u32 sdqcr;
 	struct qman_portal *qp;
+	int ret;
 
-	if (unlikely(!RTE_PER_LCORE(dpaa_io)))
-		rte_dpaa_portal_init(arg);
+	if (unlikely(!RTE_PER_LCORE(dpaa_io))) {
+		ret = rte_dpaa_portal_init(arg);
+		if (ret < 0) {
+			DPAA_BUS_LOG(ERR, "portal initialization failure");
+			return ret;
+		}
+	}
 
 	/* Initialise qman specific portals */
 	qp = fsl_qman_portal_create();
@@ -352,6 +378,51 @@ dpaa_portal_finish(void *arg)
 	RTE_PER_LCORE(dpaa_io) = false;
 }
 
+static int
+rte_dpaa_bus_parse(const char *name, void *out_name)
+{
+	int i, j;
+	int max_fman = 2, max_macs = 16;
+	char *sep = strchr(name, ':');
+
+	if (strncmp(name, RTE_STR(FSL_DPAA_BUS_NAME),
+		strlen(RTE_STR(FSL_DPAA_BUS_NAME)))) {
+		return -EINVAL;
+	}
+
+	if (!sep) {
+		DPAA_BUS_ERR("Incorrect device name observed");
+		return -EINVAL;
+	}
+
+	sep = (char *) (sep + 1);
+
+	for (i = 0; i < max_fman; i++) {
+		for (j = 0; j < max_macs; j++) {
+			char fm_name[16];
+			snprintf(fm_name, 16, "fm%d-mac%d", i, j);
+			if (strcmp(fm_name, sep) == 0) {
+				if (out_name)
+					strcpy(out_name, sep);
+				return 0;
+			}
+		}
+	}
+
+	for (i = 0; i < RTE_LIBRTE_DPAA_MAX_CRYPTODEV; i++) {
+		char sec_name[16];
+
+		snprintf(sec_name, 16, "dpaa-sec%d", i);
+		if (strcmp(sec_name, sep) == 0) {
+			if (out_name)
+				strcpy(out_name, sep);
+			return 0;
+		}
+	}
+
+	return -EINVAL;
+}
+
 #define DPAA_DEV_PATH1 "/sys/devices/platform/soc/soc:fsl,dpaa"
 #define DPAA_DEV_PATH2 "/sys/devices/platform/fsl,dpaa"
 
@@ -390,14 +461,11 @@ rte_dpaa_bus_scan(void)
 		return 0;
 	}
 
-	DPAA_BUS_LOG(DEBUG, "Bus: Address of netcfg=%p, Ethports=%d",
-		     dpaa_netcfg, dpaa_netcfg->num_ethports);
-
 #ifdef RTE_LIBRTE_DPAA_DEBUG_DRIVER
 	dump_netcfg(dpaa_netcfg);
 #endif
 
-	DPAA_BUS_LOG(DEBUG, "Number of devices = %d\n",
+	DPAA_BUS_LOG(DEBUG, "Number of ethernet devices = %d",
 		     dpaa_netcfg->num_ethports);
 	ret = dpaa_create_device_list();
 	if (ret) {
@@ -415,9 +483,6 @@ rte_dpaa_bus_scan(void)
 		return ret;
 	}
 
-	DPAA_BUS_LOG(DEBUG, "dpaa_portal_key=%u, ret=%d\n",
-		    (unsigned int)dpaa_portal_key, ret);
-
 	return 0;
 }
 
@@ -453,22 +518,15 @@ static int
 rte_dpaa_device_match(struct rte_dpaa_driver *drv,
 		      struct rte_dpaa_device *dev)
 {
-	int ret = -1;
-
-	BUS_INIT_FUNC_TRACE();
-
 	if (!drv || !dev) {
 		DPAA_BUS_DEBUG("Invalid drv or dev received.");
-		return ret;
+		return -1;
 	}
 
-	if (drv->drv_type == dev->device_type) {
-		DPAA_BUS_INFO("Device: %s matches for driver: %s",
-			      dev->name, drv->driver.name);
-		ret = 0; /* Found a match */
-	}
+	if (drv->drv_type == dev->device_type)
+		return 0;
 
-	return ret;
+	return -1;
 }
 
 static int
@@ -479,8 +537,14 @@ rte_dpaa_bus_probe(void)
 	struct rte_dpaa_driver *drv;
 	FILE *svr_file = NULL;
 	unsigned int svr_ver;
+	int probe_all = rte_dpaa_bus.bus.conf.scan_mode != RTE_BUS_SCAN_WHITELIST;
 
-	BUS_INIT_FUNC_TRACE();
+	svr_file = fopen(DPAA_SOC_ID_FILE, "r");
+	if (svr_file) {
+		if (fscanf(svr_file, "svr:%x", &svr_ver) > 0)
+			dpaa_svr_family = svr_ver & SVR_MASK;
+		fclose(svr_file);
+	}
 
 	/* For each registered driver, and device, call the driver->probe */
 	TAILQ_FOREACH(dev, &rte_dpaa_bus.device_list, next) {
@@ -489,13 +553,19 @@ rte_dpaa_bus_probe(void)
 			if (ret)
 				continue;
 
-			if (!drv->probe)
+			if (!drv->probe ||
+			    (dev->device.devargs &&
+			    dev->device.devargs->policy == RTE_DEV_BLACKLISTED))
 				continue;
 
-			ret = drv->probe(drv, dev);
-			if (ret)
-				DPAA_BUS_ERR("Unable to probe.\n");
-
+			if (probe_all ||
+			    (dev->device.devargs &&
+			    dev->device.devargs->policy ==
+			    RTE_DEV_WHITELISTED)) {
+				ret = drv->probe(drv, dev);
+				if (ret)
+					DPAA_BUS_ERR("Unable to probe.\n");
+			}
 			break;
 		}
 	}
@@ -506,13 +576,6 @@ rte_dpaa_bus_probe(void)
 	if (!TAILQ_EMPTY(&rte_dpaa_bus.device_list))
 		rte_mbuf_set_platform_mempool_ops(DPAA_MEMPOOL_OPS_NAME);
 
-	svr_file = fopen(DPAA_SOC_ID_FILE, "r");
-	if (svr_file) {
-		if (fscanf(svr_file, "svr:%x", &svr_ver) > 0)
-			dpaa_svr_family = svr_ver & SVR_MASK;
-		fclose(svr_file);
-	}
-
 	return 0;
 }
 
@@ -552,6 +615,7 @@ struct rte_dpaa_bus rte_dpaa_bus = {
 	.bus = {
 		.scan = rte_dpaa_bus_scan,
 		.probe = rte_dpaa_bus_probe,
+		.parse = rte_dpaa_bus_parse,
 		.find_device = rte_dpaa_find_device,
 		.get_iommu_class = rte_dpaa_get_iommu_class,
 	},
@@ -562,9 +626,7 @@ struct rte_dpaa_bus rte_dpaa_bus = {
 
 RTE_REGISTER_BUS(FSL_DPAA_BUS_NAME, rte_dpaa_bus.bus);
 
-RTE_INIT(dpaa_init_log);
-static void
-dpaa_init_log(void)
+RTE_INIT(dpaa_init_log)
 {
 	dpaa_logtype_bus = rte_log_register("bus.dpaa");
 	if (dpaa_logtype_bus >= 0)
@@ -574,11 +636,11 @@ dpaa_init_log(void)
 	if (dpaa_logtype_mempool >= 0)
 		rte_log_set_level(dpaa_logtype_mempool, RTE_LOG_NOTICE);
 
-	dpaa_logtype_pmd = rte_log_register("pmd.dpaa");
+	dpaa_logtype_pmd = rte_log_register("pmd.net.dpaa");
 	if (dpaa_logtype_pmd >= 0)
 		rte_log_set_level(dpaa_logtype_pmd, RTE_LOG_NOTICE);
 
-	dpaa_logtype_eventdev = rte_log_register("eventdev.dpaa");
+	dpaa_logtype_eventdev = rte_log_register("pmd.event.dpaa");
 	if (dpaa_logtype_eventdev >= 0)
 		rte_log_set_level(dpaa_logtype_eventdev, RTE_LOG_NOTICE);
 }
diff --git a/drivers/bus/dpaa/include/compat.h b/drivers/bus/dpaa/include/compat.h
index 53707bb4..92241d23 100644
--- a/drivers/bus/dpaa/include/compat.h
+++ b/drivers/bus/dpaa/include/compat.h
@@ -39,6 +39,7 @@
 #include <rte_spinlock.h>
 #include <rte_common.h>
 #include <rte_debug.h>
+#include <rte_cycles.h>
 
 /* The following definitions are primarily to allow the single-source driver
  * interfaces to be included by arbitrary program code. Ie. for interfaces that
@@ -47,9 +48,15 @@
  */
 
 /* Required compiler attributes */
+#ifndef __maybe_unused
 #define __maybe_unused	__rte_unused
+#endif
+#ifndef __always_unused
 #define __always_unused	__rte_unused
+#endif
+#ifndef __packed
 #define __packed	__rte_packed
+#endif
 #define noinline	__attribute__((noinline))
 
 #define L1_CACHE_BYTES 64
@@ -127,13 +134,15 @@ static inline void out_be32(volatile void *__p, u32 val)
 	*p = rte_cpu_to_be_32(val);
 }
 
+#define hwsync() rte_rmb()
+#define lwsync() rte_wmb()
+
 #define dcbt_ro(p) __builtin_prefetch(p, 0)
 #define dcbt_rw(p) __builtin_prefetch(p, 1)
 
+#if defined(RTE_ARCH_ARM64)
 #define dcbz(p) { asm volatile("dc zva, %0" : : "r" (p) : "memory"); }
 #define dcbz_64(p) dcbz(p)
-#define hwsync() rte_rmb()
-#define lwsync() rte_wmb()
 #define dcbf(p) { asm volatile("dc cvac, %0" : : "r"(p) : "memory"); }
 #define dcbf_64(p) dcbf(p)
 #define dccivac(p) { asm volatile("dc civac, %0" : : "r"(p) : "memory"); }
@@ -144,9 +153,27 @@ static inline void out_be32(volatile void *__p, u32 val)
 		asm volatile("prfm pldl1keep, [%0, #64]" : : "r" (p));	\
 	} while (0)
 
+#elif defined(RTE_ARCH_ARM)
+#define dcbz(p) memset((p), 0, 32)
+#define dcbz_64(p) memset((p), 0, 64)
+#define dcbf(p)	RTE_SET_USED(p)
+#define dcbf_64(p) dcbf(p)
+#define dccivac(p)	RTE_SET_USED(p)
+#define dcbit_ro(p)	RTE_SET_USED(p)
+
+#else
+#define dcbz(p)	RTE_SET_USED(p)
+#define dcbz_64(p) dcbz(p)
+#define dcbf(p)	RTE_SET_USED(p)
+#define dcbf_64(p) dcbf(p)
+#define dccivac(p)	RTE_SET_USED(p)
+#define dcbit_ro(p)	RTE_SET_USED(p)
+#endif
+
 #define barrier() { asm volatile ("" : : : "memory"); }
 #define cpu_relax barrier
 
+#if defined(RTE_ARCH_ARM64)
 static inline uint64_t mfatb(void)
 {
 	uint64_t ret, ret_new, timeout = 200;
@@ -160,6 +187,11 @@ static inline uint64_t mfatb(void)
 	DPAA_BUG_ON(!timeout && (ret != ret_new));
 	return ret * 64;
 }
+#else
+
+#define mfatb rte_rdtsc
+
+#endif
 
 /* Spin for a few cycles without bothering the bus */
 static inline void cpu_spin(int cycles)
diff --git a/drivers/bus/dpaa/include/fsl_fman.h b/drivers/bus/dpaa/include/fsl_fman.h
index c0ef1bff..1d1ce867 100644
--- a/drivers/bus/dpaa/include/fsl_fman.h
+++ b/drivers/bus/dpaa/include/fsl_fman.h
@@ -108,6 +108,12 @@ int fman_if_get_fdoff(struct fman_if *fm_if);
 /* Set interface fd->offset value */
 void fman_if_set_fdoff(struct fman_if *fm_if, uint32_t fd_offset);
 
+/* Get interface SG enable status value */
+int fman_if_get_sg_enable(struct fman_if *fm_if);
+
+/* Set interface SG support mode */
+void fman_if_set_sg(struct fman_if *fm_if, int enable);
+
 /* Get interface Max Frame length (MTU) */
 uint16_t fman_if_get_maxfrm(struct fman_if *fm_if);
 
diff --git a/drivers/bus/dpaa/include/fsl_qman.h b/drivers/bus/dpaa/include/fsl_qman.h
index e9793f30..b18cf037 100644
--- a/drivers/bus/dpaa/include/fsl_qman.h
+++ b/drivers/bus/dpaa/include/fsl_qman.h
@@ -284,20 +284,20 @@ static inline dma_addr_t qm_sg_addr(const struct qm_sg_entry *sg)
 	} while (0)
 
 /* See 1.5.8.1: "Enqueue Command" */
-struct qm_eqcr_entry {
+struct __rte_aligned(8) qm_eqcr_entry {
 	u8 __dont_write_directly__verb;
 	u8 dca;
 	u16 seqnum;
 	u32 orp;	/* 24-bit */
 	u32 fqid;	/* 24-bit */
 	u32 tag;
-	struct qm_fd fd;
+	struct qm_fd fd; /* this has alignment 8 */
 	u8 __reserved3[32];
 } __packed;
 
 
 /* "Frame Dequeue Response" */
-struct qm_dqrr_entry {
+struct __rte_aligned(8) qm_dqrr_entry {
 	u8 verb;
 	u8 stat;
 	u16 seqnum;	/* 15-bit */
@@ -305,7 +305,7 @@ struct qm_dqrr_entry {
 	u8 __reserved2[3];
 	u32 fqid;	/* 24-bit */
 	u32 contextB;
-	struct qm_fd fd;
+	struct qm_fd fd; /* this has alignment 8 */
 	u8 __reserved4[32];
 };
 
@@ -323,18 +323,19 @@ struct qm_dqrr_entry {
 /* "ERN Message Response" */
 /* "FQ State Change Notification" */
 struct qm_mr_entry {
-	u8 verb;
 	union {
 		struct {
+			u8 verb;
 			u8 dca;
 			u16 seqnum;
 			u8 rc;		/* Rejection Code */
 			u32 orp:24;
 			u32 fqid;	/* 24-bit */
 			u32 tag;
-			struct qm_fd fd;
-		} __packed ern;
+			struct qm_fd fd; /* this has alignment 8 */
+		} __packed __rte_aligned(8) ern;
 		struct {
+			u8 verb;
 #if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
 			u8 colour:2;	/* See QM_MR_DCERN_COLOUR_* */
 			u8 __reserved1:4;
@@ -349,18 +350,19 @@ struct qm_mr_entry {
 			u32 __reserved3:24;
 			u32 fqid;	/* 24-bit */
 			u32 tag;
-			struct qm_fd fd;
-		} __packed dcern;
+			struct qm_fd fd; /* this has alignment 8 */
+		} __packed __rte_aligned(8) dcern;
 		struct {
+			u8 verb;
 			u8 fqs;		/* Frame Queue Status */
 			u8 __reserved1[6];
 			u32 fqid;	/* 24-bit */
 			u32 contextB;
 			u8 __reserved2[16];
-		} __packed fq;		/* FQRN/FQRNI/FQRL/FQPN */
+		} __packed __rte_aligned(8) fq;	/* FQRN/FQRNI/FQRL/FQPN */
 	};
 	u8 __reserved2[32];
-} __packed;
+} __packed __rte_aligned(8);
 #define QM_MR_VERB_VBIT			0x80
 /*
  * ERNs originating from direct-connect portals ("dcern") use 0x20 as a verb
@@ -1330,10 +1332,11 @@ unsigned int qman_portal_poll_rx(unsigned int poll_limit,
  * qman_set_vdq - Issue a volatile dequeue command
  * @fq: Frame Queue on which the volatile dequeue command is issued
  * @num: Number of Frames requested for volatile dequeue
+ * @vdqcr_flags: QM_VDQCR_EXACT flag to for VDQCR command
  *
  * This function will issue a volatile dequeue command to the QMAN.
  */
-int qman_set_vdq(struct qman_fq *fq, u16 num);
+int qman_set_vdq(struct qman_fq *fq, u16 num, uint32_t vdqcr_flags);
 
 /**
  * qman_dequeue - Get the DQRR entry after volatile dequeue command
diff --git a/drivers/bus/dpaa/include/of.h b/drivers/bus/dpaa/include/of.h
index 151be5a3..7ea7608f 100644
--- a/drivers/bus/dpaa/include/of.h
+++ b/drivers/bus/dpaa/include/of.h
@@ -109,6 +109,8 @@ const struct device_node *of_get_parent(const struct device_node *dev_node);
 const struct device_node *of_get_next_child(const struct device_node *dev_node,
 					    const struct device_node *prev);
 
+const void *of_get_mac_address(const struct device_node *np);
+
 #define for_each_child_node(parent, child) \
 	for (child = of_get_next_child(parent, NULL); child != NULL; \
 			child = of_get_next_child(parent, child))
diff --git a/drivers/bus/dpaa/meson.build b/drivers/bus/dpaa/meson.build
new file mode 100644
index 00000000..d10b62c0
--- /dev/null
+++ b/drivers/bus/dpaa/meson.build
@@ -0,0 +1,29 @@
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright 2018 NXP
+
+if host_machine.system() != 'linux'
+        build = false
+endif
+
+deps += ['eventdev']
+sources = files('base/fman/fman.c',
+		'base/fman/fman_hw.c',
+		'base/fman/netcfg_layer.c',
+		'base/fman/of.c',
+		'base/qbman/bman.c',
+		'base/qbman/bman_driver.c',
+		'base/qbman/dpaa_alloc.c',
+		'base/qbman/dpaa_sys.c',
+		'base/qbman/process.c',
+		'base/qbman/qman.c',
+		'base/qbman/qman_driver.c',
+		'dpaa_bus.c')
+
+allow_experimental_apis = true
+
+if cc.has_argument('-Wno-cast-qual')
+	cflags += '-Wno-cast-qual'
+endif
+
+includes += include_directories('include', 'base/qbman')
+cflags += ['-D_GNU_SOURCE']
diff --git a/drivers/bus/dpaa/rte_bus_dpaa_version.map b/drivers/bus/dpaa/rte_bus_dpaa_version.map
index 8d902854..7d6d6243 100644
--- a/drivers/bus/dpaa/rte_bus_dpaa_version.map
+++ b/drivers/bus/dpaa/rte_bus_dpaa_version.map
@@ -92,3 +92,13 @@ DPDK_18.02 {
 
 	local: *;
 } DPDK_17.11;
+
+DPDK_18.08 {
+	global:
+
+	fman_if_get_sg_enable;
+	fman_if_set_sg;
+	of_get_mac_address;
+
+	local: *;
+} DPDK_18.02;
diff --git a/drivers/bus/dpaa/rte_dpaa_bus.h b/drivers/bus/dpaa/rte_dpaa_bus.h
index 718701b1..15dc6a4a 100644
--- a/drivers/bus/dpaa/rte_dpaa_bus.h
+++ b/drivers/bus/dpaa/rte_dpaa_bus.h
@@ -15,8 +15,6 @@
 #include <of.h>
 #include <netcfg.h>
 
-#define FSL_DPAA_BUS_NAME	"FSL_DPAA_BUS"
-
 #define DPAA_MEMPOOL_OPS_NAME	"dpaa"
 
 #define DEV_TO_DPAA_DEVICE(ptr)	\
@@ -95,20 +93,35 @@ struct dpaa_portal {
 	uint64_t tid;/**< Parent Thread id for this portal */
 };
 
-/* TODO - this is costly, need to write a fast coversion routine */
+/* Various structures representing contiguous memory maps */
+struct dpaa_memseg {
+	TAILQ_ENTRY(dpaa_memseg) next;
+	char *vaddr;
+	rte_iova_t iova;
+	size_t len;
+};
+
+TAILQ_HEAD(dpaa_memseg_list, dpaa_memseg);
+extern struct dpaa_memseg_list rte_dpaa_memsegs;
+
+/* Either iterate over the list of internal memseg references or fallback to
+ * EAL memseg based iova2virt.
+ */
 static inline void *rte_dpaa_mem_ptov(phys_addr_t paddr)
 {
-	const struct rte_memseg *memseg = rte_eal_get_physmem_layout();
-	int i;
-
-	for (i = 0; i < RTE_MAX_MEMSEG && memseg[i].addr != NULL; i++) {
-		if (paddr >= memseg[i].iova && paddr <
-			memseg[i].iova + memseg[i].len)
-			return (uint8_t *)(memseg[i].addr) +
-			       (paddr - memseg[i].iova);
+	struct dpaa_memseg *ms;
+
+	/* Check if the address is already part of the memseg list internally
+	 * maintained by the dpaa driver.
+	 */
+	TAILQ_FOREACH(ms, &rte_dpaa_memsegs, next) {
+		if (paddr >= ms->iova && paddr <
+			ms->iova + ms->len)
+			return RTE_PTR_ADD(ms->vaddr, (uintptr_t)(paddr - ms->iova));
 	}
 
-	return NULL;
+	/* If not, Fallback to full memseg list searching */
+	return rte_mem_iova2virt(paddr);
 }
 
 /**
@@ -151,8 +164,7 @@ void dpaa_portal_finish(void *arg);
 
 /** Helper for DPAA device registration from driver (eth, crypto) instance */
 #define RTE_PMD_REGISTER_DPAA(nm, dpaa_drv) \
-RTE_INIT(dpaainitfn_ ##nm); \
-static void dpaainitfn_ ##nm(void) \
+RTE_INIT(dpaainitfn_ ##nm) \
 {\
 	(dpaa_drv).driver.name = RTE_STR(nm);\
 	rte_dpaa_driver_register(&dpaa_drv); \
diff --git a/drivers/bus/dpaa/rte_dpaa_logs.h b/drivers/bus/dpaa/rte_dpaa_logs.h
index 0fd70bbf..e4143543 100644
--- a/drivers/bus/dpaa/rte_dpaa_logs.h
+++ b/drivers/bus/dpaa/rte_dpaa_logs.h
@@ -15,10 +15,7 @@ extern int dpaa_logtype_pmd;
 extern int dpaa_logtype_eventdev;
 
 #define DPAA_BUS_LOG(level, fmt, args...) \
-	rte_log(RTE_LOG_ ## level, dpaa_logtype_bus, "%s(): " fmt "\n", \
-		__func__, ##args)
-
-#define BUS_INIT_FUNC_TRACE() DPAA_BUS_LOG(DEBUG, " >>")
+	rte_log(RTE_LOG_ ## level, dpaa_logtype_bus, "dpaa: " fmt "\n", ##args)
 
 #ifdef RTE_LIBRTE_DPAA_DEBUG_BUS
 #define DPAA_BUS_HWWARN(cond, fmt, args...) \
@@ -31,7 +28,11 @@ extern int dpaa_logtype_eventdev;
 #endif
 
 #define DPAA_BUS_DEBUG(fmt, args...) \
-	DPAA_BUS_LOG(DEBUG, fmt, ## args)
+	rte_log(RTE_LOG_DEBUG, dpaa_logtype_bus, "dpaa: %s(): " fmt "\n", \
+		__func__, ##args)
+
+#define BUS_INIT_FUNC_TRACE() DPAA_BUS_DEBUG(" >>")
+
 #define DPAA_BUS_INFO(fmt, args...) \
 	DPAA_BUS_LOG(INFO, fmt, ## args)
 #define DPAA_BUS_ERR(fmt, args...) \
diff --git a/drivers/bus/fslmc/Makefile b/drivers/bus/fslmc/Makefile
index de237f0f..515d0f53 100644
--- a/drivers/bus/fslmc/Makefile
+++ b/drivers/bus/fslmc/Makefile
@@ -9,23 +9,13 @@ include $(RTE_SDK)/mk/rte.vars.mk
 #
 LIB = librte_bus_fslmc.a
 
-ifeq ($(CONFIG_RTE_LIBRTE_DPAA2_PMD),y)
-CONFIG_RTE_LIBRTE_FSLMC_BUS = $(CONFIG_RTE_LIBRTE_DPAA2_PMD)
-endif
-
 CFLAGS += -DALLOW_EXPERIMENTAL_API
-ifeq ($(CONFIG_RTE_LIBRTE_DPAA2_DEBUG_INIT),y)
-CFLAGS += -O0 -g
-CFLAGS += "-Wno-error"
-else
 CFLAGS += -O3
 CFLAGS += $(WERROR_FLAGS)
-endif
 
 CFLAGS += -I$(RTE_SDK)/drivers/bus/fslmc
 CFLAGS += -I$(RTE_SDK)/drivers/bus/fslmc/mc
 CFLAGS += -I$(RTE_SDK)/drivers/bus/fslmc/qbman/include
-CFLAGS += -I$(RTE_SDK)/lib/librte_eal/linuxapp/eal
 CFLAGS += -I$(RTE_SDK)/lib/librte_eal/common
 LDLIBS += -lrte_eal -lrte_mbuf -lrte_mempool -lrte_ring
 LDLIBS += -lrte_ethdev
@@ -42,11 +32,12 @@ SRCS-$(CONFIG_RTE_LIBRTE_FSLMC_BUS) += \
 
 SRCS-$(CONFIG_RTE_LIBRTE_FSLMC_BUS) += \
 	mc/dpmng.c \
-        mc/dpbp.c \
-        mc/dpio.c \
-        mc/mc_sys.c \
+	mc/dpbp.c \
+	mc/dpio.c \
+	mc/mc_sys.c \
 	mc/dpcon.c \
-	mc/dpci.c
+	mc/dpci.c \
+	mc/dpdmai.c
 
 SRCS-$(CONFIG_RTE_LIBRTE_FSLMC_BUS) += portal/dpaa2_hw_dpio.c
 SRCS-$(CONFIG_RTE_LIBRTE_FSLMC_BUS) += portal/dpaa2_hw_dpbp.c
diff --git a/drivers/bus/fslmc/fslmc_bus.c b/drivers/bus/fslmc/fslmc_bus.c
index 5ee0beb8..d2900edc 100644
--- a/drivers/bus/fslmc/fslmc_bus.c
+++ b/drivers/bus/fslmc/fslmc_bus.c
@@ -18,11 +18,12 @@
 
 #include <rte_fslmc.h>
 #include <fslmc_vfio.h>
+#include "fslmc_logs.h"
 
-#define FSLMC_BUS_LOG(level, fmt, args...) \
-	RTE_LOG(level, EAL, fmt "\n", ##args)
+int dpaa2_logtype_bus;
 
 #define VFIO_IOMMU_GROUP_PATH "/sys/kernel/iommu_groups"
+#define FSLMC_BUS_NAME	fslmc
 
 struct rte_fslmc_bus rte_fslmc_bus;
 uint8_t dpaa2_virt_mode;
@@ -93,6 +94,41 @@ insert_in_device_list(struct rte_dpaa2_device *newdev)
 		TAILQ_INSERT_TAIL(&rte_fslmc_bus.device_list, newdev, next);
 }
 
+static struct rte_devargs *
+fslmc_devargs_lookup(struct rte_dpaa2_device *dev)
+{
+	struct rte_devargs *devargs;
+	char dev_name[32];
+
+	RTE_EAL_DEVARGS_FOREACH("fslmc", devargs) {
+		devargs->bus->parse(devargs->name, &dev_name);
+		if (strcmp(dev_name, dev->device.name) == 0) {
+			DPAA2_BUS_INFO("**Devargs matched %s", dev_name);
+			return devargs;
+		}
+	}
+	return NULL;
+}
+
+static void
+dump_device_list(void)
+{
+	struct rte_dpaa2_device *dev;
+	uint32_t global_log_level;
+	int local_log_level;
+
+	/* Only if the log level has been set to Debugging, print list */
+	global_log_level = rte_log_get_global_level();
+	local_log_level = rte_log_get_level(dpaa2_logtype_bus);
+	if (global_log_level == RTE_LOG_DEBUG ||
+	    local_log_level == RTE_LOG_DEBUG) {
+		DPAA2_BUS_LOG(DEBUG, "List of devices scanned on bus:");
+		TAILQ_FOREACH(dev, &rte_fslmc_bus.device_list, next) {
+			DPAA2_BUS_LOG(DEBUG, "\t\t%s", dev->device.name);
+		}
+	}
+}
+
 static int
 scan_one_fslmc_device(char *dev_name)
 {
@@ -109,7 +145,7 @@ scan_one_fslmc_device(char *dev_name)
 	/* Creating a temporary copy to perform cut-parse over string */
 	dup_dev_name = strdup(dev_name);
 	if (!dup_dev_name) {
-		FSLMC_BUS_LOG(ERR, "Out of memory.");
+		DPAA2_BUS_ERR("Unable to allocate device name memory");
 		return -ENOMEM;
 	}
 
@@ -120,7 +156,7 @@ scan_one_fslmc_device(char *dev_name)
 	 */
 	dev = calloc(1, sizeof(struct rte_dpaa2_device));
 	if (!dev) {
-		FSLMC_BUS_LOG(ERR, "Out of memory.");
+		DPAA2_BUS_ERR("Unable to allocate device object");
 		free(dup_dev_name);
 		return -ENOMEM;
 	}
@@ -128,7 +164,7 @@ scan_one_fslmc_device(char *dev_name)
 	/* Parse the device name and ID */
 	t_ptr = strtok(dup_dev_name, ".");
 	if (!t_ptr) {
-		FSLMC_BUS_LOG(ERR, "Incorrect device string observed.");
+		DPAA2_BUS_ERR("Incorrect device name observed");
 		goto cleanup;
 	}
 	if (!strncmp("dpni", t_ptr, 4))
@@ -145,6 +181,8 @@ scan_one_fslmc_device(char *dev_name)
 		dev->dev_type = DPAA2_CI;
 	else if (!strncmp("dpmcp", t_ptr, 5))
 		dev->dev_type = DPAA2_MPORTAL;
+	else if (!strncmp("dpdmai", t_ptr, 6))
+		dev->dev_type = DPAA2_QDMA;
 	else
 		dev->dev_type = DPAA2_UNKNOWN;
 
@@ -153,17 +191,17 @@ scan_one_fslmc_device(char *dev_name)
 
 	t_ptr = strtok(NULL, ".");
 	if (!t_ptr) {
-		FSLMC_BUS_LOG(ERR, "Incorrect device string observed (%s).",
-			      t_ptr);
+		DPAA2_BUS_ERR("Incorrect device string observed (%s)", t_ptr);
 		goto cleanup;
 	}
 
 	sscanf(t_ptr, "%hu", &dev->object_id);
 	dev->device.name = strdup(dev_name);
 	if (!dev->device.name) {
-		FSLMC_BUS_LOG(ERR, "Out of memory.");
+		DPAA2_BUS_ERR("Unable to clone device name. Out of memory");
 		goto cleanup;
 	}
+	dev->device.devargs = fslmc_devargs_lookup(dev);
 
 	/* Add device in the fslmc device list */
 	insert_in_device_list(dev);
@@ -182,6 +220,54 @@ cleanup:
 }
 
 static int
+rte_fslmc_parse(const char *name, void *addr)
+{
+	uint16_t dev_id;
+	char *t_ptr;
+	char *sep = strchr(name, ':');
+
+	if (strncmp(name, RTE_STR(FSLMC_BUS_NAME),
+		strlen(RTE_STR(FSLMC_BUS_NAME)))) {
+		return -EINVAL;
+	}
+
+	if (!sep) {
+		DPAA2_BUS_ERR("Incorrect device name observed");
+		return -EINVAL;
+	}
+
+	t_ptr = (char *)(sep + 1);
+
+	if (strncmp("dpni", t_ptr, 4) &&
+	    strncmp("dpseci", t_ptr, 6) &&
+	    strncmp("dpcon", t_ptr, 5) &&
+	    strncmp("dpbp", t_ptr, 4) &&
+	    strncmp("dpio", t_ptr, 4) &&
+	    strncmp("dpci", t_ptr, 4) &&
+	    strncmp("dpmcp", t_ptr, 5) &&
+	    strncmp("dpdmai", t_ptr, 6)) {
+		DPAA2_BUS_ERR("Unknown or unsupported device");
+		return -EINVAL;
+	}
+
+	t_ptr = strchr(name, '.');
+	if (!t_ptr) {
+		DPAA2_BUS_ERR("Incorrect device string observed (%s)", t_ptr);
+		return -EINVAL;
+	}
+
+	t_ptr = (char *)(t_ptr + 1);
+	if (sscanf(t_ptr, "%hu", &dev_id) <= 0) {
+		DPAA2_BUS_ERR("Incorrect device string observed (%s)", t_ptr);
+		return -EINVAL;
+	}
+
+	if (addr)
+		strcpy(addr, (char *)(sep + 1));
+	return 0;
+}
+
+static int
 rte_fslmc_scan(void)
 {
 	int ret;
@@ -193,8 +279,7 @@ rte_fslmc_scan(void)
 	int groupid;
 
 	if (process_once) {
-		FSLMC_BUS_LOG(DEBUG,
-			      "Fslmc bus already scanned. Not rescanning");
+		DPAA2_BUS_DEBUG("Fslmc bus already scanned. Not rescanning");
 		return 0;
 	}
 	process_once = 1;
@@ -208,7 +293,7 @@ rte_fslmc_scan(void)
 		groupid);
 	dir = opendir(fslmc_dirpath);
 	if (!dir) {
-		FSLMC_BUS_LOG(ERR, "Unable to open VFIO group dir.");
+		DPAA2_BUS_ERR("Unable to open VFIO group directory");
 		goto scan_fail;
 	}
 
@@ -224,9 +309,12 @@ rte_fslmc_scan(void)
 		device_count += 1;
 	}
 
-	FSLMC_BUS_LOG(INFO, "fslmc: Bus scan completed");
-
 	closedir(dir);
+
+	DPAA2_BUS_INFO("FSLMC Bus scan completed");
+	/* If debugging is enabled, device list is dumped to log output */
+	dump_device_list();
+
 	return 0;
 
 scan_fail_cleanup:
@@ -235,7 +323,7 @@ scan_fail_cleanup:
 	/* Remove all devices in the list */
 	cleanup_fslmc_device_list();
 scan_fail:
-	FSLMC_BUS_LOG(DEBUG, "FSLMC Bus Not Available. Skipping.");
+	DPAA2_BUS_DEBUG("FSLMC Bus Not Available. Skipping");
 	/* Irrespective of failure, scan only return success */
 	return 0;
 }
@@ -254,6 +342,8 @@ static int
 rte_fslmc_probe(void)
 {
 	int ret = 0;
+	int probe_all;
+
 	struct rte_dpaa2_device *dev;
 	struct rte_dpaa2_driver *drv;
 
@@ -262,16 +352,29 @@ rte_fslmc_probe(void)
 
 	ret = fslmc_vfio_setup_group();
 	if (ret) {
-		FSLMC_BUS_LOG(ERR, "Unable to setup VFIO %d", ret);
+		DPAA2_BUS_ERR("Unable to setup VFIO %d", ret);
+		return 0;
+	}
+
+	/* Map existing segments as well as, in case of hotpluggable memory,
+	 * install callback handler.
+	 */
+	ret = rte_fslmc_vfio_dmamap();
+	if (ret) {
+		DPAA2_BUS_ERR("Unable to DMA map existing VAs: (%d)", ret);
+		/* Not continuing ahead */
+		DPAA2_BUS_ERR("FSLMC VFIO Mapping failed");
 		return 0;
 	}
 
 	ret = fslmc_vfio_process_group();
 	if (ret) {
-		FSLMC_BUS_LOG(ERR, "Unable to setup devices %d", ret);
+		DPAA2_BUS_ERR("Unable to setup devices %d", ret);
 		return 0;
 	}
 
+	probe_all = rte_fslmc_bus.bus.conf.scan_mode != RTE_BUS_SCAN_WHITELIST;
+
 	TAILQ_FOREACH(dev, &rte_fslmc_bus.device_list, next) {
 		TAILQ_FOREACH(drv, &rte_fslmc_bus.driver_list, next) {
 			ret = rte_fslmc_match(drv, dev);
@@ -281,9 +384,21 @@ rte_fslmc_probe(void)
 			if (!drv->probe)
 				continue;
 
-			ret = drv->probe(drv, dev);
-			if (ret)
-				FSLMC_BUS_LOG(ERR, "Unable to probe.\n");
+			if (dev->device.devargs &&
+			  dev->device.devargs->policy == RTE_DEV_BLACKLISTED) {
+				DPAA2_BUS_LOG(DEBUG, "%s Blacklisted, skipping",
+					      dev->device.name);
+				continue;
+			}
+
+			if (probe_all ||
+			   (dev->device.devargs &&
+			   dev->device.devargs->policy ==
+			   RTE_DEV_WHITELISTED)) {
+				ret = drv->probe(drv, dev);
+				if (ret)
+					DPAA2_BUS_ERR("Unable to probe");
+			}
 			break;
 		}
 	}
@@ -298,16 +413,19 @@ static struct rte_device *
 rte_fslmc_find_device(const struct rte_device *start, rte_dev_cmp_t cmp,
 		      const void *data)
 {
+	const struct rte_dpaa2_device *dstart;
 	struct rte_dpaa2_device *dev;
 
-	TAILQ_FOREACH(dev, &rte_fslmc_bus.device_list, next) {
-		if (start && &dev->device == start) {
-			start = NULL;  /* starting point found */
-			continue;
-		}
-
+	if (start != NULL) {
+		dstart = RTE_DEV_TO_FSLMC_CONST(start);
+		dev = TAILQ_NEXT(dstart, next);
+	} else {
+		dev = TAILQ_FIRST(&rte_fslmc_bus.device_list);
+	}
+	while (dev != NULL) {
 		if (cmp(&dev->device, data) == 0)
 			return &dev->device;
+		dev = TAILQ_NEXT(dev, next);
 	}
 
 	return NULL;
@@ -390,6 +508,7 @@ struct rte_fslmc_bus rte_fslmc_bus = {
 	.bus = {
 		.scan = rte_fslmc_scan,
 		.probe = rte_fslmc_probe,
+		.parse = rte_fslmc_parse,
 		.find_device = rte_fslmc_find_device,
 		.get_iommu_class = rte_dpaa2_get_iommu_class,
 	},
@@ -398,4 +517,12 @@ struct rte_fslmc_bus rte_fslmc_bus = {
 	.device_count = {0},
 };
 
-RTE_REGISTER_BUS(fslmc, rte_fslmc_bus.bus);
+RTE_REGISTER_BUS(FSLMC_BUS_NAME, rte_fslmc_bus.bus);
+
+RTE_INIT(fslmc_init_log)
+{
+	/* Bus level logs */
+	dpaa2_logtype_bus = rte_log_register("bus.fslmc");
+	if (dpaa2_logtype_bus >= 0)
+		rte_log_set_level(dpaa2_logtype_bus, RTE_LOG_NOTICE);
+}
diff --git a/drivers/bus/fslmc/fslmc_logs.h b/drivers/bus/fslmc/fslmc_logs.h
index d87b6386..dd74cb7d 100644
--- a/drivers/bus/fslmc/fslmc_logs.h
+++ b/drivers/bus/fslmc/fslmc_logs.h
@@ -7,44 +7,35 @@
 #ifndef _FSLMC_LOGS_H_
 #define _FSLMC_LOGS_H_
 
-#define PMD_INIT_LOG(level, fmt, args...) \
-	RTE_LOG(level, PMD, "%s(): " fmt "\n", __func__, ##args)
-
-#ifdef RTE_LIBRTE_DPAA2_DEBUG_INIT
-#define PMD_INIT_FUNC_TRACE() PMD_INIT_LOG(DEBUG, " >>")
-#else
-#define PMD_INIT_FUNC_TRACE() do { } while (0)
-#endif
-
-#ifdef RTE_LIBRTE_DPAA2_DEBUG_RX
-#define PMD_RX_LOG(level, fmt, args...) \
-	RTE_LOG(level, PMD, "%s(): " fmt "\n", __func__, ## args)
-#else
-#define PMD_RX_LOG(level, fmt, args...) do { } while (0)
-#endif
-
-#ifdef RTE_LIBRTE_DPAA2_DEBUG_TX
-#define PMD_TX_LOG(level, fmt, args...) \
-	RTE_LOG(level, PMD, "%s(): " fmt "\n", __func__, ## args)
-#else
-#define PMD_TX_LOG(level, fmt, args...) do { } while (0)
-#endif
-
-#ifdef RTE_LIBRTE_DPAA2_DEBUG_TX_FREE
-#define PMD_TX_FREE_LOG(level, fmt, args...) \
-	RTE_LOG(level, PMD, "%s(): " fmt "\n", __func__, ## args)
-#else
-#define PMD_TX_FREE_LOG(level, fmt, args...) do { } while (0)
-#endif
-
-#ifdef RTE_LIBRTE_DPAA2_DEBUG_DRIVER
-#define PMD_DRV_LOG_RAW(level, fmt, args...) \
-	RTE_LOG(level, PMD, "%s(): " fmt, __func__, ## args)
-#else
-#define PMD_DRV_LOG_RAW(level, fmt, args...) do { } while (0)
-#endif
-
-#define PMD_DRV_LOG(level, fmt, args...) \
-	PMD_DRV_LOG_RAW(level, fmt "\n", ## args)
+extern int dpaa2_logtype_bus;
+
+#define DPAA2_BUS_LOG(level, fmt, args...) \
+	rte_log(RTE_LOG_ ## level, dpaa2_logtype_bus, "fslmc: " fmt "\n", \
+		##args)
+
+/* Debug logs are with Function names */
+#define DPAA2_BUS_DEBUG(fmt, args...) \
+	rte_log(RTE_LOG_DEBUG, dpaa2_logtype_bus, "fslmc: %s(): " fmt "\n", \
+		__func__, ##args)
+
+#define BUS_INIT_FUNC_TRACE() DPAA2_BUS_DEBUG(" >>")
+
+#define DPAA2_BUS_INFO(fmt, args...) \
+	DPAA2_BUS_LOG(INFO, fmt, ## args)
+#define DPAA2_BUS_ERR(fmt, args...) \
+	DPAA2_BUS_LOG(ERR, fmt, ## args)
+#define DPAA2_BUS_WARN(fmt, args...) \
+	DPAA2_BUS_LOG(WARNING, fmt, ## args)
+
+/* DP Logs, toggled out at compile time if level lower than current level */
+#define DPAA2_BUS_DP_LOG(level, fmt, args...) \
+	RTE_LOG_DP(level, PMD, fmt, ## args)
+
+#define DPAA2_BUS_DP_DEBUG(fmt, args...) \
+	DPAA2_BUS_DP_LOG(DEBUG, fmt, ## args)
+#define DPAA2_BUS_DP_INFO(fmt, args...) \
+	DPAA2_BUS_DP_LOG(INFO, fmt, ## args)
+#define DPAA2_BUS_DP_WARN(fmt, args...) \
+	DPAA2_BUS_DP_LOG(WARNING, fmt, ## args)
 
 #endif /* _FSLMC_LOGS_H_ */
diff --git a/drivers/bus/fslmc/fslmc_vfio.c b/drivers/bus/fslmc/fslmc_vfio.c
index 1241295b..4c2cd2a8 100644
--- a/drivers/bus/fslmc/fslmc_vfio.c
+++ b/drivers/bus/fslmc/fslmc_vfio.c
@@ -30,17 +30,16 @@
 #include <rte_kvargs.h>
 #include <rte_dev.h>
 #include <rte_bus.h>
+#include <rte_eal_memconfig.h>
 
 #include "rte_fslmc.h"
 #include "fslmc_vfio.h"
+#include "fslmc_logs.h"
 #include <mc/fsl_dpmng.h>
 
 #include "portal/dpaa2_hw_pvt.h"
 #include "portal/dpaa2_hw_dpio.h"
 
-#define FSLMC_VFIO_LOG(level, fmt, args...) \
-	RTE_LOG(level, EAL, fmt "\n", ##args)
-
 /** Pathname of FSL-MC devices directory. */
 #define SYSFS_FSL_MC_DEVICES "/sys/bus/fsl-mc/devices"
 
@@ -53,7 +52,6 @@ static int container_device_fd;
 static char *g_container;
 static uint32_t *msi_intr_vaddr;
 void *(*rte_mcp_ptr_list);
-static int is_dma_done;
 
 static struct rte_dpaa2_object_list dpaa2_obj_list =
 	TAILQ_HEAD_INITIALIZER(dpaa2_obj_list);
@@ -76,33 +74,32 @@ fslmc_get_container_group(int *groupid)
 	if (!g_container) {
 		container = getenv("DPRC");
 		if (container == NULL) {
-			RTE_LOG(WARNING, EAL, "DPAA2: DPRC not available\n");
+			DPAA2_BUS_DEBUG("DPAA2: DPRC not available");
 			return -EINVAL;
 		}
 
 		if (strlen(container) >= FSLMC_CONTAINER_MAX_LEN) {
-			FSLMC_VFIO_LOG(ERR, "Invalid container name: %s\n",
-				       container);
+			DPAA2_BUS_ERR("Invalid container name: %s", container);
 			return -1;
 		}
 
 		g_container = strdup(container);
 		if (!g_container) {
-			FSLMC_VFIO_LOG(ERR, "Out of memory.");
+			DPAA2_BUS_ERR("Mem alloc failure; Container name");
 			return -ENOMEM;
 		}
 	}
 
 	/* get group number */
-	ret = vfio_get_group_no(SYSFS_FSL_MC_DEVICES, g_container, groupid);
+	ret = rte_vfio_get_group_num(SYSFS_FSL_MC_DEVICES,
+				     g_container, groupid);
 	if (ret <= 0) {
-		FSLMC_VFIO_LOG(ERR, "Unable to find %s IOMMU group",
-			       g_container);
+		DPAA2_BUS_ERR("Unable to find %s IOMMU group", g_container);
 		return -1;
 	}
 
-	FSLMC_VFIO_LOG(DEBUG, "Container: %s has VFIO iommu group id = %d",
-		       g_container, *groupid);
+	DPAA2_BUS_DEBUG("Container: %s has VFIO iommu group id = %d",
+			g_container, *groupid);
 
 	return 0;
 }
@@ -113,14 +110,14 @@ vfio_connect_container(void)
 	int fd, ret;
 
 	if (vfio_container.used) {
-		FSLMC_VFIO_LOG(DEBUG, "No container available.");
+		DPAA2_BUS_DEBUG("No container available");
 		return -1;
 	}
 
 	/* Try connecting to vfio container if already created */
 	if (!ioctl(vfio_group.fd, VFIO_GROUP_SET_CONTAINER,
 		&vfio_container.fd)) {
-		FSLMC_VFIO_LOG(INFO,
+		DPAA2_BUS_DEBUG(
 		    "Container pre-exists with FD[0x%x] for this group",
 		    vfio_container.fd);
 		vfio_group.container = &vfio_container;
@@ -128,9 +125,9 @@ vfio_connect_container(void)
 	}
 
 	/* Opens main vfio file descriptor which represents the "container" */
-	fd = vfio_get_container_fd();
+	fd = rte_vfio_get_container_fd();
 	if (fd < 0) {
-		FSLMC_VFIO_LOG(ERR, "Failed to open VFIO container");
+		DPAA2_BUS_ERR("Failed to open VFIO container");
 		return -errno;
 	}
 
@@ -139,19 +136,19 @@ vfio_connect_container(void)
 		/* Connect group to container */
 		ret = ioctl(vfio_group.fd, VFIO_GROUP_SET_CONTAINER, &fd);
 		if (ret) {
-			FSLMC_VFIO_LOG(ERR, "Failed to setup group container");
+			DPAA2_BUS_ERR("Failed to setup group container");
 			close(fd);
 			return -errno;
 		}
 
 		ret = ioctl(fd, VFIO_SET_IOMMU, VFIO_TYPE1_IOMMU);
 		if (ret) {
-			FSLMC_VFIO_LOG(ERR, "Failed to setup VFIO iommu");
+			DPAA2_BUS_ERR("Failed to setup VFIO iommu");
 			close(fd);
 			return -errno;
 		}
 	} else {
-		FSLMC_VFIO_LOG(ERR, "No supported IOMMU available");
+		DPAA2_BUS_ERR("No supported IOMMU available");
 		close(fd);
 		return -EINVAL;
 	}
@@ -179,7 +176,7 @@ static int vfio_map_irq_region(struct fslmc_vfio_group *group)
 	vaddr = (unsigned long *)mmap(NULL, 0x1000, PROT_WRITE |
 		PROT_READ, MAP_SHARED, container_device_fd, 0x6030000);
 	if (vaddr == MAP_FAILED) {
-		FSLMC_VFIO_LOG(ERR, "Unable to map region (errno = %d)", errno);
+		DPAA2_BUS_ERR("Unable to map region (errno = %d)", errno);
 		return -errno;
 	}
 
@@ -189,88 +186,195 @@ static int vfio_map_irq_region(struct fslmc_vfio_group *group)
 	if (ret == 0)
 		return 0;
 
-	FSLMC_VFIO_LOG(ERR, "VFIO_IOMMU_MAP_DMA fails (errno = %d)", errno);
+	DPAA2_BUS_ERR("Unable to map DMA address (errno = %d)", errno);
 	return -errno;
 }
 
-int rte_fslmc_vfio_dmamap(void)
+static int fslmc_map_dma(uint64_t vaddr, rte_iova_t iovaddr, size_t len);
+static int fslmc_unmap_dma(uint64_t vaddr, rte_iova_t iovaddr, size_t len);
+
+static void
+fslmc_memevent_cb(enum rte_mem_event type, const void *addr, size_t len,
+		void *arg __rte_unused)
 {
+	struct rte_memseg_list *msl;
+	struct rte_memseg *ms;
+	size_t cur_len = 0, map_len = 0;
+	uint64_t virt_addr;
+	rte_iova_t iova_addr;
 	int ret;
+
+	msl = rte_mem_virt2memseg_list(addr);
+
+	while (cur_len < len) {
+		const void *va = RTE_PTR_ADD(addr, cur_len);
+
+		ms = rte_mem_virt2memseg(va, msl);
+		iova_addr = ms->iova;
+		virt_addr = ms->addr_64;
+		map_len = ms->len;
+
+		DPAA2_BUS_DEBUG("Request for %s, va=%p, "
+				"virt_addr=0x%" PRIx64 ", "
+				"iova=0x%" PRIx64 ", map_len=%zu",
+				type == RTE_MEM_EVENT_ALLOC ?
+					"alloc" : "dealloc",
+				va, virt_addr, iova_addr, map_len);
+
+		if (type == RTE_MEM_EVENT_ALLOC)
+			ret = fslmc_map_dma(virt_addr, iova_addr, map_len);
+		else
+			ret = fslmc_unmap_dma(virt_addr, iova_addr, map_len);
+
+		if (ret != 0) {
+			DPAA2_BUS_ERR("DMA Mapping/Unmapping failed. "
+					"Map=%d, addr=%p, len=%zu, err:(%d)",
+					type, va, map_len, ret);
+			return;
+		}
+
+		cur_len += map_len;
+	}
+
+	if (type == RTE_MEM_EVENT_ALLOC)
+		DPAA2_BUS_DEBUG("Total Mapped: addr=%p, len=%zu",
+				addr, len);
+	else
+		DPAA2_BUS_DEBUG("Total Unmapped: addr=%p, len=%zu",
+				addr, len);
+}
+
+static int
+fslmc_map_dma(uint64_t vaddr, rte_iova_t iovaddr __rte_unused, size_t len)
+{
 	struct fslmc_vfio_group *group;
 	struct vfio_iommu_type1_dma_map dma_map = {
 		.argsz = sizeof(struct vfio_iommu_type1_dma_map),
 		.flags = VFIO_DMA_MAP_FLAG_READ | VFIO_DMA_MAP_FLAG_WRITE,
 	};
+	int ret;
 
-	int i;
-	const struct rte_memseg *memseg;
+	dma_map.size = len;
+	dma_map.vaddr = vaddr;
 
-	if (is_dma_done)
-		return 0;
+#ifdef RTE_LIBRTE_DPAA2_USE_PHYS_IOVA
+	dma_map.iova = iovaddr;
+#else
+	dma_map.iova = dma_map.vaddr;
+#endif
 
-	memseg = rte_eal_get_physmem_layout();
-	if (memseg == NULL) {
-		FSLMC_VFIO_LOG(ERR, "Cannot get physical layout.");
-		return -ENODEV;
+	/* SET DMA MAP for IOMMU */
+	group = &vfio_group;
+
+	if (!group->container) {
+		DPAA2_BUS_ERR("Container is not connected ");
+		return -1;
 	}
 
-	for (i = 0; i < RTE_MAX_MEMSEG; i++) {
-		if (memseg[i].addr == NULL && memseg[i].len == 0) {
-			FSLMC_VFIO_LOG(DEBUG, "Total %d segments found.", i);
-			break;
-		}
+	DPAA2_BUS_DEBUG("--> Map address: 0x%"PRIx64", size: %"PRIu64"",
+			(uint64_t)dma_map.vaddr, (uint64_t)dma_map.size);
+	ret = ioctl(group->container->fd, VFIO_IOMMU_MAP_DMA, &dma_map);
+	if (ret) {
+		DPAA2_BUS_ERR("VFIO_IOMMU_MAP_DMA API(errno = %d)",
+				errno);
+		return -1;
+	}
 
-		dma_map.size = memseg[i].len;
-		dma_map.vaddr = memseg[i].addr_64;
-#ifdef RTE_LIBRTE_DPAA2_USE_PHYS_IOVA
-		if (rte_eal_iova_mode() == RTE_IOVA_VA)
-			dma_map.iova = dma_map.vaddr;
-		else
-			dma_map.iova = memseg[i].iova;
-#else
-		dma_map.iova = dma_map.vaddr;
-#endif
+	return 0;
+}
 
-		/* SET DMA MAP for IOMMU */
-		group = &vfio_group;
+static int
+fslmc_unmap_dma(uint64_t vaddr, uint64_t iovaddr __rte_unused, size_t len)
+{
+	struct fslmc_vfio_group *group;
+	struct vfio_iommu_type1_dma_unmap dma_unmap = {
+		.argsz = sizeof(struct vfio_iommu_type1_dma_unmap),
+		.flags = 0,
+	};
+	int ret;
 
-		if (!group->container) {
-			FSLMC_VFIO_LOG(ERR, "Container is not connected ");
-			return -1;
-		}
+	dma_unmap.size = len;
+	dma_unmap.iova = vaddr;
 
-		FSLMC_VFIO_LOG(DEBUG, "-->Initial SHM Virtual ADDR %llX",
-			     dma_map.vaddr);
-		FSLMC_VFIO_LOG(DEBUG, "-----> DMA size 0x%llX", dma_map.size);
-		ret = ioctl(group->container->fd, VFIO_IOMMU_MAP_DMA,
-			    &dma_map);
-		if (ret) {
-			FSLMC_VFIO_LOG(ERR, "VFIO_IOMMU_MAP_DMA API(errno = %d)",
-				       errno);
-			return ret;
-		}
+	/* SET DMA MAP for IOMMU */
+	group = &vfio_group;
+
+	if (!group->container) {
+		DPAA2_BUS_ERR("Container is not connected ");
+		return -1;
 	}
 
-	/* Verifying that at least single segment is available */
-	if (i <= 0) {
-		FSLMC_VFIO_LOG(ERR, "No Segments found for VFIO Mapping");
+	DPAA2_BUS_DEBUG("--> Unmap address: 0x%"PRIx64", size: %"PRIu64"",
+			(uint64_t)dma_unmap.iova, (uint64_t)dma_unmap.size);
+	ret = ioctl(group->container->fd, VFIO_IOMMU_UNMAP_DMA, &dma_unmap);
+	if (ret) {
+		DPAA2_BUS_ERR("VFIO_IOMMU_UNMAP_DMA API(errno = %d)",
+				errno);
 		return -1;
 	}
 
+	return 0;
+}
+
+static int
+fslmc_dmamap_seg(const struct rte_memseg_list *msl __rte_unused,
+		 const struct rte_memseg *ms, void *arg)
+{
+	int *n_segs = arg;
+	int ret;
+
+	ret = fslmc_map_dma(ms->addr_64, ms->iova, ms->len);
+	if (ret)
+		DPAA2_BUS_ERR("Unable to VFIO map (addr=%p, len=%zu)",
+				ms->addr, ms->len);
+	else
+		(*n_segs)++;
+
+	return ret;
+}
+
+int rte_fslmc_vfio_dmamap(void)
+{
+	int i = 0, ret;
+	struct rte_mem_config *mcfg = rte_eal_get_configuration()->mem_config;
+	rte_rwlock_t *mem_lock = &mcfg->memory_hotplug_lock;
+
+	/* Lock before parsing and registering callback to memory subsystem */
+	rte_rwlock_read_lock(mem_lock);
+
+	if (rte_memseg_walk(fslmc_dmamap_seg, &i) < 0) {
+		rte_rwlock_read_unlock(mem_lock);
+		return -1;
+	}
+
+	ret = rte_mem_event_callback_register("fslmc_memevent_clb",
+			fslmc_memevent_cb, NULL);
+	if (ret && rte_errno == ENOTSUP)
+		DPAA2_BUS_DEBUG("Memory event callbacks not supported");
+	else if (ret)
+		DPAA2_BUS_DEBUG("Unable to install memory handler");
+	else
+		DPAA2_BUS_DEBUG("Installed memory callback handler");
+
+	DPAA2_BUS_DEBUG("Total %d segments found.", i);
+
 	/* TODO - This is a W.A. as VFIO currently does not add the mapping of
 	 * the interrupt region to SMMU. This should be removed once the
 	 * support is added in the Kernel.
 	 */
-	vfio_map_irq_region(group);
+	vfio_map_irq_region(&vfio_group);
 
-	is_dma_done = 1;
+	/* Existing segments have been mapped and memory callback for hotplug
+	 * has been installed.
+	 */
+	rte_rwlock_read_unlock(mem_lock);
 
 	return 0;
 }
 
 static int64_t vfio_map_mcp_obj(struct fslmc_vfio_group *group, char *mcp_obj)
 {
-	int64_t v_addr = (int64_t)MAP_FAILED;
+	intptr_t v_addr = (intptr_t)MAP_FAILED;
 	int32_t ret, mc_fd;
 
 	struct vfio_device_info d_info = { .argsz = sizeof(d_info) };
@@ -279,29 +383,26 @@ static int64_t vfio_map_mcp_obj(struct fslmc_vfio_group *group, char *mcp_obj)
 	/* getting the mcp object's fd*/
 	mc_fd = ioctl(group->fd, VFIO_GROUP_GET_DEVICE_FD, mcp_obj);
 	if (mc_fd < 0) {
-		FSLMC_VFIO_LOG(ERR, "error in VFIO get dev %s fd from group %d",
-			       mcp_obj, group->fd);
+		DPAA2_BUS_ERR("Error in VFIO get dev %s fd from group %d",
+			      mcp_obj, group->fd);
 		return v_addr;
 	}
 
 	/* getting device info*/
 	ret = ioctl(mc_fd, VFIO_DEVICE_GET_INFO, &d_info);
 	if (ret < 0) {
-		FSLMC_VFIO_LOG(ERR, "error in VFIO getting DEVICE_INFO");
+		DPAA2_BUS_ERR("Error in VFIO getting DEVICE_INFO");
 		goto MC_FAILURE;
 	}
 
 	/* getting device region info*/
 	ret = ioctl(mc_fd, VFIO_DEVICE_GET_REGION_INFO, &reg_info);
 	if (ret < 0) {
-		FSLMC_VFIO_LOG(ERR, "error in VFIO getting REGION_INFO");
+		DPAA2_BUS_ERR("Error in VFIO getting REGION_INFO");
 		goto MC_FAILURE;
 	}
 
-	FSLMC_VFIO_LOG(DEBUG, "region offset = %llx  , region size = %llx",
-		       reg_info.offset, reg_info.size);
-
-	v_addr = (uint64_t)mmap(NULL, reg_info.size,
+	v_addr = (size_t)mmap(NULL, reg_info.size,
 		PROT_WRITE | PROT_READ, MAP_SHARED,
 		mc_fd, reg_info.offset);
 
@@ -334,8 +435,8 @@ int rte_dpaa2_intr_enable(struct rte_intr_handle *intr_handle, int index)
 
 	ret = ioctl(intr_handle->vfio_dev_fd, VFIO_DEVICE_SET_IRQS, irq_set);
 	if (ret) {
-		RTE_LOG(ERR, EAL, "Error:dpaa2 SET IRQs fd=%d, err = %d(%s)\n",
-			intr_handle->fd, errno, strerror(errno));
+		DPAA2_BUS_ERR("Error:dpaa2 SET IRQs fd=%d, err = %d(%s)",
+			      intr_handle->fd, errno, strerror(errno));
 		return ret;
 	}
 
@@ -359,8 +460,8 @@ int rte_dpaa2_intr_disable(struct rte_intr_handle *intr_handle, int index)
 
 	ret = ioctl(intr_handle->vfio_dev_fd, VFIO_DEVICE_SET_IRQS, irq_set);
 	if (ret)
-		RTE_LOG(ERR, EAL,
-			"Error disabling dpaa2 interrupts for fd %d\n",
+		DPAA2_BUS_ERR(
+			"Error disabling dpaa2 interrupts for fd %d",
 			intr_handle->fd);
 
 	return ret;
@@ -383,9 +484,8 @@ rte_dpaa2_vfio_setup_intr(struct rte_intr_handle *intr_handle,
 
 		ret = ioctl(vfio_dev_fd, VFIO_DEVICE_GET_IRQ_INFO, &irq_info);
 		if (ret < 0) {
-			FSLMC_VFIO_LOG(ERR,
-				       "cannot get IRQ(%d) info, error %i (%s)",
-				       i, errno, strerror(errno));
+			DPAA2_BUS_ERR("Cannot get IRQ(%d) info, error %i (%s)",
+				      i, errno, strerror(errno));
 			return -1;
 		}
 
@@ -399,9 +499,8 @@ rte_dpaa2_vfio_setup_intr(struct rte_intr_handle *intr_handle,
 		/* set up an eventfd for interrupts */
 		fd = eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC);
 		if (fd < 0) {
-			FSLMC_VFIO_LOG(ERR,
-				       "cannot set up eventfd, error %i (%s)\n",
-				       errno, strerror(errno));
+			DPAA2_BUS_ERR("Cannot set up eventfd, error %i (%s)",
+				      errno, strerror(errno));
 			return -1;
 		}
 
@@ -430,13 +529,14 @@ fslmc_process_iodevices(struct rte_dpaa2_device *dev)
 	dev_fd = ioctl(vfio_group.fd, VFIO_GROUP_GET_DEVICE_FD,
 		       dev->device.name);
 	if (dev_fd <= 0) {
-		FSLMC_VFIO_LOG(ERR, "Unable to obtain device FD for device:%s",
-			       dev->device.name);
+		DPAA2_BUS_ERR("Unable to obtain device FD for device:%s",
+			      dev->device.name);
 		return -1;
 	}
 
 	if (ioctl(dev_fd, VFIO_DEVICE_GET_INFO, &device_info)) {
-		FSLMC_VFIO_LOG(ERR, "DPAA2 VFIO_DEVICE_GET_INFO fail");
+		DPAA2_BUS_ERR("Unable to obtain information for device:%s",
+			      dev->device.name);
 		return -1;
 	}
 
@@ -461,61 +561,74 @@ fslmc_process_iodevices(struct rte_dpaa2_device *dev)
 		break;
 	}
 
-	FSLMC_VFIO_LOG(DEBUG, "Device (%s) abstracted from VFIO",
-		       dev->device.name);
+	DPAA2_BUS_LOG(DEBUG, "Device (%s) abstracted from VFIO",
+		      dev->device.name);
 	return 0;
 }
 
 static int
 fslmc_process_mcp(struct rte_dpaa2_device *dev)
 {
-	int64_t v_addr;
-	char *dev_name;
+	int ret;
+	intptr_t v_addr;
+	char *dev_name = NULL;
 	struct fsl_mc_io dpmng  = {0};
 	struct mc_version mc_ver_info = {0};
 
 	rte_mcp_ptr_list = malloc(sizeof(void *) * 1);
 	if (!rte_mcp_ptr_list) {
-		FSLMC_VFIO_LOG(ERR, "Out of memory");
-		return -ENOMEM;
+		DPAA2_BUS_ERR("Unable to allocate MC portal memory");
+		ret = -ENOMEM;
+		goto cleanup;
 	}
 
 	dev_name = strdup(dev->device.name);
 	if (!dev_name) {
-		FSLMC_VFIO_LOG(ERR, "Out of memory.");
-		free(rte_mcp_ptr_list);
-		rte_mcp_ptr_list = NULL;
-		return -ENOMEM;
+		DPAA2_BUS_ERR("Unable to allocate MC device name memory");
+		ret = -ENOMEM;
+		goto cleanup;
 	}
 
 	v_addr = vfio_map_mcp_obj(&vfio_group, dev_name);
-	if (v_addr == (int64_t)MAP_FAILED) {
-		FSLMC_VFIO_LOG(ERR, "Error mapping region  (errno = %d)",
-			       errno);
-		free(rte_mcp_ptr_list);
-		rte_mcp_ptr_list = NULL;
-		return -1;
+	if (v_addr == (intptr_t)MAP_FAILED) {
+		DPAA2_BUS_ERR("Error mapping region (errno = %d)", errno);
+		ret = -1;
+		goto cleanup;
 	}
 
 	/* check the MC version compatibility */
 	dpmng.regs = (void *)v_addr;
-	if (mc_get_version(&dpmng, CMD_PRI_LOW, &mc_ver_info))
-		RTE_LOG(WARNING, PMD, "\tmc_get_version failed\n");
+	if (mc_get_version(&dpmng, CMD_PRI_LOW, &mc_ver_info)) {
+		DPAA2_BUS_ERR("Unable to obtain MC version");
+		ret = -1;
+		goto cleanup;
+	}
 
 	if ((mc_ver_info.major != MC_VER_MAJOR) ||
 	    (mc_ver_info.minor < MC_VER_MINOR)) {
-		RTE_LOG(ERR, PMD, "DPAA2 MC version not compatible!"
-			" Expected %d.%d.x, Detected %d.%d.%d\n",
-			MC_VER_MAJOR, MC_VER_MINOR,
-			mc_ver_info.major, mc_ver_info.minor,
-			mc_ver_info.revision);
-		free(rte_mcp_ptr_list);
-		rte_mcp_ptr_list = NULL;
-		return -1;
+		DPAA2_BUS_ERR("DPAA2 MC version not compatible!"
+			      " Expected %d.%d.x, Detected %d.%d.%d",
+			      MC_VER_MAJOR, MC_VER_MINOR,
+			      mc_ver_info.major, mc_ver_info.minor,
+			      mc_ver_info.revision);
+		ret = -1;
+		goto cleanup;
 	}
 	rte_mcp_ptr_list[0] = (void *)v_addr;
 
+	free(dev_name);
 	return 0;
+
+cleanup:
+	if (dev_name)
+		free(dev_name);
+
+	if (rte_mcp_ptr_list) {
+		free(rte_mcp_ptr_list);
+		rte_mcp_ptr_list = NULL;
+	}
+
+	return ret;
 }
 
 int
@@ -530,7 +643,7 @@ fslmc_vfio_process_group(void)
 		if (dev->dev_type == DPAA2_MPORTAL) {
 			ret = fslmc_process_mcp(dev);
 			if (ret) {
-				FSLMC_VFIO_LOG(DEBUG, "Unable to map Portal.");
+				DPAA2_BUS_ERR("Unable to map MC Portal");
 				return -1;
 			}
 			if (!found_mportal)
@@ -547,23 +660,19 @@ fslmc_vfio_process_group(void)
 
 	/* Cannot continue if there is not even a single mportal */
 	if (!found_mportal) {
-		FSLMC_VFIO_LOG(DEBUG,
-			       "No MC Portal device found. Not continuing.");
+		DPAA2_BUS_ERR("No MC Portal device found. Not continuing");
 		return -1;
 	}
 
 	TAILQ_FOREACH_SAFE(dev, &rte_fslmc_bus.device_list, next, dev_temp) {
-		if (!dev)
-			break;
-
 		switch (dev->dev_type) {
 		case DPAA2_ETH:
 		case DPAA2_CRYPTO:
+		case DPAA2_QDMA:
 			ret = fslmc_process_iodevices(dev);
 			if (ret) {
-				FSLMC_VFIO_LOG(DEBUG,
-					       "Dev (%s) init failed.",
-					       dev->device.name);
+				DPAA2_BUS_DEBUG("Dev (%s) init failed",
+						dev->device.name);
 				return ret;
 			}
 			break;
@@ -576,9 +685,8 @@ fslmc_vfio_process_group(void)
 			 */
 			ret = fslmc_process_iodevices(dev);
 			if (ret) {
-				FSLMC_VFIO_LOG(DEBUG,
-					       "Dev (%s) init failed.",
-					       dev->device.name);
+				DPAA2_BUS_DEBUG("Dev (%s) init failed",
+						dev->device.name);
 				return -1;
 			}
 
@@ -592,8 +700,8 @@ fslmc_vfio_process_group(void)
 		case DPAA2_UNKNOWN:
 		default:
 			/* Unknown - ignore */
-			FSLMC_VFIO_LOG(DEBUG, "Found unknown device (%s).",
-				       dev->device.name);
+			DPAA2_BUS_DEBUG("Found unknown device (%s)",
+					dev->device.name);
 			TAILQ_REMOVE(&rte_fslmc_bus.device_list, dev, next);
 			free(dev);
 			dev = NULL;
@@ -622,12 +730,12 @@ fslmc_vfio_setup_group(void)
 	 * processing.
 	 */
 	if (vfio_group.groupid == groupid) {
-		FSLMC_VFIO_LOG(ERR, "groupid already exists %d", groupid);
+		DPAA2_BUS_ERR("groupid already exists %d", groupid);
 		return 0;
 	}
 
 	/* Get the actual group fd */
-	ret = vfio_get_group_fd(groupid);
+	ret = rte_vfio_get_group_fd(groupid);
 	if (ret < 0)
 		return ret;
 	vfio_group.fd = ret;
@@ -635,14 +743,14 @@ fslmc_vfio_setup_group(void)
 	/* Check group viability */
 	ret = ioctl(vfio_group.fd, VFIO_GROUP_GET_STATUS, &status);
 	if (ret) {
-		FSLMC_VFIO_LOG(ERR, "VFIO error getting group status");
+		DPAA2_BUS_ERR("VFIO error getting group status");
 		close(vfio_group.fd);
 		rte_vfio_clear_group(vfio_group.fd);
 		return ret;
 	}
 
 	if (!(status.flags & VFIO_GROUP_FLAGS_VIABLE)) {
-		FSLMC_VFIO_LOG(ERR, "VFIO group not viable");
+		DPAA2_BUS_ERR("VFIO group not viable");
 		close(vfio_group.fd);
 		rte_vfio_clear_group(vfio_group.fd);
 		return -EPERM;
@@ -655,7 +763,7 @@ fslmc_vfio_setup_group(void)
 		/* Now connect this IOMMU group to given container */
 		ret = vfio_connect_container();
 		if (ret) {
-			FSLMC_VFIO_LOG(ERR,
+			DPAA2_BUS_ERR(
 				"Error connecting container with groupid %d",
 				groupid);
 			close(vfio_group.fd);
@@ -667,15 +775,15 @@ fslmc_vfio_setup_group(void)
 	/* Get Device information */
 	ret = ioctl(vfio_group.fd, VFIO_GROUP_GET_DEVICE_FD, g_container);
 	if (ret < 0) {
-		FSLMC_VFIO_LOG(ERR, "Error getting device %s fd from group %d",
-			       g_container, vfio_group.groupid);
+		DPAA2_BUS_ERR("Error getting device %s fd from group %d",
+			      g_container, vfio_group.groupid);
 		close(vfio_group.fd);
 		rte_vfio_clear_group(vfio_group.fd);
 		return ret;
 	}
 	container_device_fd = ret;
-	FSLMC_VFIO_LOG(DEBUG, "VFIO Container FD is [0x%X]",
-		       container_device_fd);
+	DPAA2_BUS_DEBUG("VFIO Container FD is [0x%X]",
+			container_device_fd);
 
 	return 0;
 }
diff --git a/drivers/bus/fslmc/fslmc_vfio.h b/drivers/bus/fslmc/fslmc_vfio.h
index e8fb3445..9e2c4fee 100644
--- a/drivers/bus/fslmc/fslmc_vfio.h
+++ b/drivers/bus/fslmc/fslmc_vfio.h
@@ -10,8 +10,6 @@
 
 #include <rte_vfio.h>
 
-#include "eal_vfio.h"
-
 #define DPAA2_MC_DPNI_DEVID	7
 #define DPAA2_MC_DPSECI_DEVID	3
 #define DPAA2_MC_DPCON_DEVID	5
diff --git a/drivers/bus/fslmc/mc/dpdmai.c b/drivers/bus/fslmc/mc/dpdmai.c
new file mode 100644
index 00000000..528889df
--- /dev/null
+++ b/drivers/bus/fslmc/mc/dpdmai.c
@@ -0,0 +1,429 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright 2018 NXP
+ */
+
+#include <fsl_mc_sys.h>
+#include <fsl_mc_cmd.h>
+#include <fsl_dpdmai.h>
+#include <fsl_dpdmai_cmd.h>
+
+/**
+ * dpdmai_open() - Open a control session for the specified object
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
+ * @dpdmai_id:	DPDMAI unique ID
+ * @token:	Returned token; use in subsequent API calls
+ *
+ * This function can be used to open a control session for an
+ * already created object; an object may have been declared in
+ * the DPL or by calling the dpdmai_create() function.
+ * This function returns a unique authentication token,
+ * associated with the specific object ID and the specific MC
+ * portal; this token must be used in all subsequent commands for
+ * this specific object.
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dpdmai_open(struct fsl_mc_io *mc_io,
+		uint32_t cmd_flags,
+		int dpdmai_id,
+		uint16_t *token)
+{
+	struct dpdmai_cmd_open *cmd_params;
+	struct mc_command cmd = { 0 };
+	int err;
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPDMAI_CMDID_OPEN,
+					  cmd_flags,
+					  0);
+	cmd_params = (struct dpdmai_cmd_open *)cmd.params;
+	cmd_params->dpdmai_id = cpu_to_le32(dpdmai_id);
+
+	/* send command to mc*/
+	err = mc_send_command(mc_io, &cmd);
+	if (err)
+		return err;
+
+	/* retrieve response parameters */
+	*token = mc_cmd_hdr_read_token(&cmd);
+
+	return 0;
+}
+
+/**
+ * dpdmai_close() - Close the control session of the object
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token:	Token of DPDMAI object
+ *
+ * After this function is called, no further operations are
+ * allowed on the object without opening a new control session.
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dpdmai_close(struct fsl_mc_io *mc_io,
+		 uint32_t cmd_flags,
+		 uint16_t token)
+{
+	struct mc_command cmd = { 0 };
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPDMAI_CMDID_CLOSE,
+					  cmd_flags, token);
+
+	/* send command to mc*/
+	return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpdmai_create() - Create the DPDMAI object
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @dprc_token:	Parent container token; '0' for default container
+ * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
+ * @cfg:	Configuration structure
+ * @obj_id:	Returned object id
+ *
+ * Create the DPDMAI object, allocate required resources and
+ * perform required initialization.
+ *
+ * The object can be created either by declaring it in the
+ * DPL file, or by calling this function.
+ *
+ * The function accepts an authentication token of a parent
+ * container that this object should be assigned to. The token
+ * can be '0' so the object will be assigned to the default container.
+ * The newly created object can be opened with the returned
+ * object id and using the container's associated tokens and MC portals.
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dpdmai_create(struct fsl_mc_io *mc_io,
+		  uint16_t dprc_token,
+		  uint32_t cmd_flags,
+		  const struct dpdmai_cfg *cfg,
+		  uint32_t *obj_id)
+{
+	struct dpdmai_cmd_create *cmd_params;
+	struct mc_command cmd = { 0 };
+	int err;
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPDMAI_CMDID_CREATE,
+					  cmd_flags,
+					  dprc_token);
+	cmd_params = (struct dpdmai_cmd_create *)cmd.params;
+	cmd_params->priorities[0] = cfg->priorities[0];
+	cmd_params->priorities[1] = cfg->priorities[1];
+
+	/* send command to mc*/
+	err = mc_send_command(mc_io, &cmd);
+	if (err)
+		return err;
+
+	/* retrieve response parameters */
+	*obj_id = mc_cmd_read_object_id(&cmd);
+
+	return 0;
+}
+
+/**
+ * dpdmai_destroy() - Destroy the DPDMAI object and release all its resources.
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @dprc_token: Parent container token; '0' for default container
+ * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
+ * @object_id:	The object id; it must be a valid id within the container that
+ *		created this object;
+ *
+ * The function accepts the authentication token of the parent container that
+ * created the object (not the one that currently owns the object). The object
+ * is searched within parent using the provided 'object_id'.
+ * All tokens to the object must be closed before calling destroy.
+ *
+ * Return:	'0' on Success; error code otherwise.
+ */
+int dpdmai_destroy(struct fsl_mc_io *mc_io,
+		   uint16_t dprc_token,
+		   uint32_t cmd_flags,
+		   uint32_t object_id)
+{
+	struct dpdmai_cmd_destroy *cmd_params;
+	struct mc_command cmd = { 0 };
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPDMAI_CMDID_DESTROY,
+					  cmd_flags,
+					  dprc_token);
+	cmd_params = (struct dpdmai_cmd_destroy *)cmd.params;
+	cmd_params->dpdmai_id = cpu_to_le32(object_id);
+
+	/* send command to mc*/
+	return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpdmai_enable() - Enable the DPDMAI, allow sending and receiving frames.
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token:	Token of DPDMAI object
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dpdmai_enable(struct fsl_mc_io *mc_io,
+		  uint32_t cmd_flags,
+		  uint16_t token)
+{
+	struct mc_command cmd = { 0 };
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPDMAI_CMDID_ENABLE,
+					  cmd_flags,
+					  token);
+
+	/* send command to mc*/
+	return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpdmai_disable() - Disable the DPDMAI, stop sending and receiving frames.
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token:	Token of DPDMAI object
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dpdmai_disable(struct fsl_mc_io *mc_io,
+		   uint32_t cmd_flags,
+		   uint16_t token)
+{
+	struct mc_command cmd = { 0 };
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPDMAI_CMDID_DISABLE,
+					  cmd_flags,
+					  token);
+
+	/* send command to mc*/
+	return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpdmai_is_enabled() - Check if the DPDMAI is enabled.
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token:	Token of DPDMAI object
+ * @en:		Returns '1' if object is enabled; '0' otherwise
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dpdmai_is_enabled(struct fsl_mc_io *mc_io,
+		      uint32_t cmd_flags,
+		      uint16_t token,
+		      int *en)
+{
+	struct dpdmai_rsp_is_enabled *rsp_params;
+	struct mc_command cmd = { 0 };
+	int err;
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPDMAI_CMDID_IS_ENABLED,
+					  cmd_flags,
+					  token);
+
+	/* send command to mc*/
+	err = mc_send_command(mc_io, &cmd);
+	if (err)
+		return err;
+
+	/* retrieve response parameters */
+	rsp_params = (struct dpdmai_rsp_is_enabled *)cmd.params;
+	*en = dpdmai_get_field(rsp_params->en, ENABLE);
+
+	return 0;
+}
+
+/**
+ * dpdmai_reset() - Reset the DPDMAI, returns the object to initial state.
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token:	Token of DPDMAI object
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dpdmai_reset(struct fsl_mc_io *mc_io,
+		 uint32_t cmd_flags,
+		 uint16_t token)
+{
+	struct mc_command cmd = { 0 };
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPDMAI_CMDID_RESET,
+					  cmd_flags,
+					  token);
+
+	/* send command to mc*/
+	return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpdmai_get_attributes() - Retrieve DPDMAI attributes.
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token:	Token of DPDMAI object
+ * @attr:	Returned object's attributes
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dpdmai_get_attributes(struct fsl_mc_io *mc_io,
+			  uint32_t cmd_flags,
+			  uint16_t token,
+			  struct dpdmai_attr *attr)
+{
+	struct dpdmai_rsp_get_attr *rsp_params;
+	struct mc_command cmd = { 0 };
+	int err;
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPDMAI_CMDID_GET_ATTR,
+					  cmd_flags,
+					  token);
+
+	/* send command to mc*/
+	err = mc_send_command(mc_io, &cmd);
+	if (err)
+		return err;
+
+	/* retrieve response parameters */
+	rsp_params = (struct dpdmai_rsp_get_attr *)cmd.params;
+	attr->id = le32_to_cpu(rsp_params->id);
+	attr->num_of_priorities = rsp_params->num_of_priorities;
+
+	return 0;
+}
+
+/**
+ * dpdmai_set_rx_queue() - Set Rx queue configuration
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token:	Token of DPDMAI object
+ * @priority:	Select the queue relative to number of
+ *		priorities configured at DPDMAI creation; use
+ *		DPDMAI_ALL_QUEUES to configure all Rx queues
+ *		identically.
+ * @cfg:	Rx queue configuration
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dpdmai_set_rx_queue(struct fsl_mc_io *mc_io,
+			uint32_t cmd_flags,
+			uint16_t token,
+			uint8_t priority,
+			const struct dpdmai_rx_queue_cfg *cfg)
+{
+	struct dpdmai_cmd_set_rx_queue *cmd_params;
+	struct mc_command cmd = { 0 };
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPDMAI_CMDID_SET_RX_QUEUE,
+					  cmd_flags,
+					  token);
+	cmd_params = (struct dpdmai_cmd_set_rx_queue *)cmd.params;
+	cmd_params->dest_id = cpu_to_le32(cfg->dest_cfg.dest_id);
+	cmd_params->dest_priority = cfg->dest_cfg.priority;
+	cmd_params->priority = priority;
+	cmd_params->user_ctx = cpu_to_le64(cfg->user_ctx);
+	cmd_params->options = cpu_to_le32(cfg->options);
+	dpdmai_set_field(cmd_params->dest_type,
+			 DEST_TYPE,
+			 cfg->dest_cfg.dest_type);
+
+	/* send command to mc*/
+	return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpdmai_get_rx_queue() - Retrieve Rx queue attributes.
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token:	Token of DPDMAI object
+ * @priority:	Select the queue relative to number of
+ *		priorities configured at DPDMAI creation
+ * @attr:	Returned Rx queue attributes
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dpdmai_get_rx_queue(struct fsl_mc_io *mc_io,
+			uint32_t cmd_flags,
+			uint16_t token,
+			uint8_t priority,
+			struct dpdmai_rx_queue_attr *attr)
+{
+	struct dpdmai_cmd_get_queue *cmd_params;
+	struct dpdmai_rsp_get_rx_queue *rsp_params;
+	struct mc_command cmd = { 0 };
+	int err;
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPDMAI_CMDID_GET_RX_QUEUE,
+					  cmd_flags,
+					  token);
+	cmd_params = (struct dpdmai_cmd_get_queue *)cmd.params;
+	cmd_params->priority = priority;
+
+	/* send command to mc*/
+	err = mc_send_command(mc_io, &cmd);
+	if (err)
+		return err;
+
+	/* retrieve response parameters */
+	rsp_params = (struct dpdmai_rsp_get_rx_queue *)cmd.params;
+	attr->user_ctx = le64_to_cpu(rsp_params->user_ctx);
+	attr->fqid = le32_to_cpu(rsp_params->fqid);
+	attr->dest_cfg.dest_id = le32_to_cpu(rsp_params->dest_id);
+	attr->dest_cfg.priority = le32_to_cpu(rsp_params->dest_priority);
+	attr->dest_cfg.dest_type = dpdmai_get_field(rsp_params->dest_type,
+						    DEST_TYPE);
+
+	return 0;
+}
+
+/**
+ * dpdmai_get_tx_queue() - Retrieve Tx queue attributes.
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token:	Token of DPDMAI object
+ * @priority:	Select the queue relative to number of
+ *		priorities configured at DPDMAI creation
+ * @attr:	Returned Tx queue attributes
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dpdmai_get_tx_queue(struct fsl_mc_io *mc_io,
+			uint32_t cmd_flags,
+			uint16_t token,
+			uint8_t priority,
+			struct dpdmai_tx_queue_attr *attr)
+{
+	struct dpdmai_cmd_get_queue *cmd_params;
+	struct dpdmai_rsp_get_tx_queue *rsp_params;
+	struct mc_command cmd = { 0 };
+	int err;
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPDMAI_CMDID_GET_TX_QUEUE,
+					  cmd_flags,
+					  token);
+	cmd_params = (struct dpdmai_cmd_get_queue *)cmd.params;
+	cmd_params->priority = priority;
+
+	/* send command to mc*/
+	err = mc_send_command(mc_io, &cmd);
+	if (err)
+		return err;
+
+	/* retrieve response parameters */
+	rsp_params = (struct dpdmai_rsp_get_tx_queue *)cmd.params;
+	attr->fqid = le32_to_cpu(rsp_params->fqid);
+
+	return 0;
+}
diff --git a/drivers/bus/fslmc/mc/fsl_dpdmai.h b/drivers/bus/fslmc/mc/fsl_dpdmai.h
new file mode 100644
index 00000000..03e46ec1
--- /dev/null
+++ b/drivers/bus/fslmc/mc/fsl_dpdmai.h
@@ -0,0 +1,189 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright 2018 NXP
+ */
+
+#ifndef __FSL_DPDMAI_H
+#define __FSL_DPDMAI_H
+
+struct fsl_mc_io;
+
+/* Data Path DMA Interface API
+ * Contains initialization APIs and runtime control APIs for DPDMAI
+ */
+
+/* General DPDMAI macros */
+
+/**
+ * Maximum number of Tx/Rx priorities per DPDMAI object
+ */
+#define DPDMAI_PRIO_NUM		2
+
+/**
+ * All queues considered; see dpdmai_set_rx_queue()
+ */
+#define DPDMAI_ALL_QUEUES	(uint8_t)(-1)
+
+int dpdmai_open(struct fsl_mc_io *mc_io,
+		uint32_t cmd_flags,
+		int dpdmai_id,
+		uint16_t *token);
+
+int dpdmai_close(struct fsl_mc_io *mc_io,
+		 uint32_t cmd_flags,
+		 uint16_t token);
+
+/**
+ * struct dpdmai_cfg - Structure representing DPDMAI configuration
+ * @priorities: Priorities for the DMA hardware processing; valid priorities are
+ *	configured with values 1-8; the entry following last valid entry
+ *	should be configured with 0
+ */
+struct dpdmai_cfg {
+	uint8_t priorities[DPDMAI_PRIO_NUM];
+};
+
+int dpdmai_create(struct fsl_mc_io *mc_io,
+		  uint16_t dprc_token,
+		  uint32_t cmd_flags,
+		  const struct dpdmai_cfg *cfg,
+		  uint32_t *obj_id);
+
+int dpdmai_destroy(struct fsl_mc_io *mc_io,
+		   uint16_t dprc_token,
+		   uint32_t cmd_flags,
+		   uint32_t object_id);
+
+int dpdmai_enable(struct fsl_mc_io *mc_io,
+		  uint32_t cmd_flags,
+		  uint16_t token);
+
+int dpdmai_disable(struct fsl_mc_io *mc_io,
+		   uint32_t cmd_flags,
+		   uint16_t token);
+
+int dpdmai_is_enabled(struct fsl_mc_io *mc_io,
+		      uint32_t cmd_flags,
+		      uint16_t token,
+		      int *en);
+
+int dpdmai_reset(struct fsl_mc_io *mc_io,
+		 uint32_t cmd_flags,
+		 uint16_t token);
+
+/**
+ * struct dpdmai_attr - Structure representing DPDMAI attributes
+ * @id: DPDMAI object ID
+ * @num_of_priorities: number of priorities
+ */
+struct dpdmai_attr {
+	int id;
+	uint8_t num_of_priorities;
+};
+
+int dpdmai_get_attributes(struct fsl_mc_io *mc_io,
+			  uint32_t cmd_flags,
+			  uint16_t token,
+			  struct dpdmai_attr *attr);
+
+/**
+ * enum dpdmai_dest - DPDMAI destination types
+ * @DPDMAI_DEST_NONE: Unassigned destination; The queue is set in parked mode
+ *	and does not generate FQDAN notifications; user is expected to dequeue
+ *	from the queue based on polling or other user-defined method
+ * @DPDMAI_DEST_DPIO: The queue is set in schedule mode and generates FQDAN
+ *	notifications to the specified DPIO; user is expected to dequeue
+ *	from the queue only after notification is received
+ * @DPDMAI_DEST_DPCON: The queue is set in schedule mode and does not generate
+ *	FQDAN notifications, but is connected to the specified DPCON object;
+ *	user is expected to dequeue from the DPCON channel
+ */
+enum dpdmai_dest {
+	DPDMAI_DEST_NONE = 0,
+	DPDMAI_DEST_DPIO = 1,
+	DPDMAI_DEST_DPCON = 2
+};
+
+/**
+ * struct dpdmai_dest_cfg - Structure representing DPDMAI destination parameters
+ * @dest_type: Destination type
+ * @dest_id: Either DPIO ID or DPCON ID, depending on the destination type
+ * @priority: Priority selection within the DPIO or DPCON channel; valid values
+ *	are 0-1 or 0-7, depending on the number of priorities in that
+ *	channel; not relevant for 'DPDMAI_DEST_NONE' option
+ */
+struct dpdmai_dest_cfg {
+	enum dpdmai_dest dest_type;
+	int dest_id;
+	uint8_t priority;
+};
+
+/* DPDMAI queue modification options */
+
+/**
+ * Select to modify the user's context associated with the queue
+ */
+#define DPDMAI_QUEUE_OPT_USER_CTX	0x00000001
+
+/**
+ * Select to modify the queue's destination
+ */
+#define DPDMAI_QUEUE_OPT_DEST		0x00000002
+
+/**
+ * struct dpdmai_rx_queue_cfg - DPDMAI RX queue configuration
+ * @options: Flags representing the suggested modifications to the queue;
+ *	Use any combination of 'DPDMAI_QUEUE_OPT_<X>' flags
+ * @user_ctx: User context value provided in the frame descriptor of each
+ *	dequeued frame;
+ *	valid only if 'DPDMAI_QUEUE_OPT_USER_CTX' is contained in 'options'
+ * @dest_cfg: Queue destination parameters;
+ *	valid only if 'DPDMAI_QUEUE_OPT_DEST' is contained in 'options'
+ */
+struct dpdmai_rx_queue_cfg {
+	uint32_t options;
+	uint64_t user_ctx;
+	struct dpdmai_dest_cfg dest_cfg;
+
+};
+
+int dpdmai_set_rx_queue(struct fsl_mc_io *mc_io,
+			uint32_t cmd_flags,
+			uint16_t token,
+			uint8_t priority,
+			const struct dpdmai_rx_queue_cfg *cfg);
+
+/**
+ * struct dpdmai_rx_queue_attr - Structure representing attributes of Rx queues
+ * @user_ctx:  User context value provided in the frame descriptor of each
+ *	 dequeued frame
+ * @dest_cfg: Queue destination configuration
+ * @fqid: Virtual FQID value to be used for dequeue operations
+ */
+struct dpdmai_rx_queue_attr {
+	uint64_t user_ctx;
+	struct dpdmai_dest_cfg dest_cfg;
+	uint32_t fqid;
+};
+
+int dpdmai_get_rx_queue(struct fsl_mc_io *mc_io,
+			uint32_t cmd_flags,
+			uint16_t token,
+			uint8_t priority,
+			struct dpdmai_rx_queue_attr *attr);
+
+/**
+ * struct dpdmai_tx_queue_attr - Structure representing attributes of Tx queues
+ * @fqid: Virtual FQID to be used for sending frames to DMA hardware
+ */
+
+struct dpdmai_tx_queue_attr {
+	uint32_t fqid;
+};
+
+int dpdmai_get_tx_queue(struct fsl_mc_io *mc_io,
+			uint32_t cmd_flags,
+			uint16_t token,
+			uint8_t priority,
+			struct dpdmai_tx_queue_attr *attr);
+
+#endif /* __FSL_DPDMAI_H */
diff --git a/drivers/bus/fslmc/mc/fsl_dpdmai_cmd.h b/drivers/bus/fslmc/mc/fsl_dpdmai_cmd.h
new file mode 100644
index 00000000..618e19ea
--- /dev/null
+++ b/drivers/bus/fslmc/mc/fsl_dpdmai_cmd.h
@@ -0,0 +1,107 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright 2018 NXP
+ */
+
+#ifndef _FSL_DPDMAI_CMD_H
+#define _FSL_DPDMAI_CMD_H
+
+/* DPDMAI Version */
+#define DPDMAI_VER_MAJOR		3
+#define DPDMAI_VER_MINOR		2
+
+/* Command versioning */
+#define DPDMAI_CMD_BASE_VERSION		1
+#define DPDMAI_CMD_ID_OFFSET		4
+
+#define DPDMAI_CMD(id)	((id << DPDMAI_CMD_ID_OFFSET) | DPDMAI_CMD_BASE_VERSION)
+
+/* Command IDs */
+#define DPDMAI_CMDID_CLOSE		DPDMAI_CMD(0x800)
+#define DPDMAI_CMDID_OPEN		DPDMAI_CMD(0x80E)
+#define DPDMAI_CMDID_CREATE		DPDMAI_CMD(0x90E)
+#define DPDMAI_CMDID_DESTROY		DPDMAI_CMD(0x98E)
+#define DPDMAI_CMDID_GET_API_VERSION	DPDMAI_CMD(0xa0E)
+
+#define DPDMAI_CMDID_ENABLE		DPDMAI_CMD(0x002)
+#define DPDMAI_CMDID_DISABLE		DPDMAI_CMD(0x003)
+#define DPDMAI_CMDID_GET_ATTR		DPDMAI_CMD(0x004)
+#define DPDMAI_CMDID_RESET		DPDMAI_CMD(0x005)
+#define DPDMAI_CMDID_IS_ENABLED		DPDMAI_CMD(0x006)
+
+#define DPDMAI_CMDID_SET_RX_QUEUE	DPDMAI_CMD(0x1A0)
+#define DPDMAI_CMDID_GET_RX_QUEUE	DPDMAI_CMD(0x1A1)
+#define DPDMAI_CMDID_GET_TX_QUEUE	DPDMAI_CMD(0x1A2)
+
+/* Macros for accessing command fields smaller than 1byte */
+#define DPDMAI_MASK(field)        \
+	GENMASK(DPDMAI_##field##_SHIFT + DPDMAI_##field##_SIZE - 1, \
+		DPDMAI_##field##_SHIFT)
+#define dpdmai_set_field(var, field, val) \
+	((var) |= (((val) << DPDMAI_##field##_SHIFT) & DPDMAI_MASK(field)))
+#define dpdmai_get_field(var, field)      \
+	(((var) & DPDMAI_MASK(field)) >> DPDMAI_##field##_SHIFT)
+
+#pragma pack(push, 1)
+struct dpdmai_cmd_open {
+	uint32_t dpdmai_id;
+};
+
+struct dpdmai_cmd_create {
+	uint8_t pad;
+	uint8_t priorities[2];
+};
+
+struct dpdmai_cmd_destroy {
+	uint32_t dpdmai_id;
+};
+
+#define DPDMAI_ENABLE_SHIFT	0
+#define DPDMAI_ENABLE_SIZE	1
+
+struct dpdmai_rsp_is_enabled {
+	/* only the LSB bit */
+	uint8_t en;
+};
+
+struct dpdmai_rsp_get_attr {
+	uint32_t id;
+	uint8_t num_of_priorities;
+};
+
+#define DPDMAI_DEST_TYPE_SHIFT	0
+#define DPDMAI_DEST_TYPE_SIZE	4
+
+struct dpdmai_cmd_set_rx_queue {
+	uint32_t dest_id;
+	uint8_t dest_priority;
+	uint8_t priority;
+	/* from LSB: dest_type:4 */
+	uint8_t dest_type;
+	uint8_t pad;
+	uint64_t user_ctx;
+	uint32_t options;
+};
+
+struct dpdmai_cmd_get_queue {
+	uint8_t pad[5];
+	uint8_t priority;
+};
+
+struct dpdmai_rsp_get_rx_queue {
+	uint32_t dest_id;
+	uint8_t dest_priority;
+	uint8_t pad1;
+	/* from LSB: dest_type:4 */
+	uint8_t dest_type;
+	uint8_t pad2;
+	uint64_t user_ctx;
+	uint32_t fqid;
+};
+
+struct dpdmai_rsp_get_tx_queue {
+	uint64_t pad;
+	uint32_t fqid;
+};
+
+#pragma pack(pop)
+#endif /* _FSL_DPDMAI_CMD_H */
diff --git a/drivers/bus/fslmc/mc/fsl_mc_cmd.h b/drivers/bus/fslmc/mc/fsl_mc_cmd.h
index a3c3e798..ac919610 100644
--- a/drivers/bus/fslmc/mc/fsl_mc_cmd.h
+++ b/drivers/bus/fslmc/mc/fsl_mc_cmd.h
@@ -27,7 +27,7 @@
 #define le32_to_cpu	rte_le_to_cpu_32
 #define le16_to_cpu	rte_le_to_cpu_16
 
-#define BITS_PER_LONG			64
+#define BITS_PER_LONG	(__SIZEOF_LONG__ * 8)
 #define GENMASK(h, l) \
 		(((~0UL) << (l)) & (~0UL >> (BITS_PER_LONG - 1 - (h))))
 
diff --git a/drivers/bus/fslmc/meson.build b/drivers/bus/fslmc/meson.build
new file mode 100644
index 00000000..22a56a6f
--- /dev/null
+++ b/drivers/bus/fslmc/meson.build
@@ -0,0 +1,27 @@
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright 2018 NXP
+
+if host_machine.system() != 'linux'
+        build = false
+endif
+
+deps += ['eventdev', 'kvargs']
+sources = files('fslmc_bus.c',
+		'fslmc_vfio.c',
+		'mc/dpbp.c',
+		'mc/dpci.c',
+		'mc/dpcon.c',
+		'mc/dpdmai.c',
+		'mc/dpio.c',
+		'mc/dpmng.c',
+		'mc/mc_sys.c',
+		'portal/dpaa2_hw_dpbp.c',
+		'portal/dpaa2_hw_dpci.c',
+		'portal/dpaa2_hw_dpio.c',
+		'qbman/qbman_portal.c',
+		'qbman/qbman_debug.c')
+
+allow_experimental_apis = true
+
+includes += include_directories('mc', 'qbman/include', 'portal')
+cflags += ['-D_GNU_SOURCE']
diff --git a/drivers/bus/fslmc/portal/dpaa2_hw_dpbp.c b/drivers/bus/fslmc/portal/dpaa2_hw_dpbp.c
index f1f14e29..39c5adf9 100644
--- a/drivers/bus/fslmc/portal/dpaa2_hw_dpbp.c
+++ b/drivers/bus/fslmc/portal/dpaa2_hw_dpbp.c
@@ -44,7 +44,7 @@ dpaa2_create_dpbp_device(int vdev_fd __rte_unused,
 	/* Allocate DPAA2 dpbp handle */
 	dpbp_node = rte_malloc(NULL, sizeof(struct dpaa2_dpbp_dev), 0);
 	if (!dpbp_node) {
-		PMD_INIT_LOG(ERR, "Memory allocation failed for DPBP Device");
+		DPAA2_BUS_ERR("Memory allocation failed for DPBP Device");
 		return -1;
 	}
 
@@ -53,8 +53,8 @@ dpaa2_create_dpbp_device(int vdev_fd __rte_unused,
 	ret = dpbp_open(&dpbp_node->dpbp,
 			CMD_PRI_LOW, dpbp_id, &dpbp_node->token);
 	if (ret) {
-		PMD_INIT_LOG(ERR, "Resource alloc failure with err code: %d",
-			     ret);
+		DPAA2_BUS_ERR("Unable to open buffer pool object: err(%d)",
+			      ret);
 		rte_free(dpbp_node);
 		return -1;
 	}
@@ -62,8 +62,8 @@ dpaa2_create_dpbp_device(int vdev_fd __rte_unused,
 	/* Clean the device first */
 	ret = dpbp_reset(&dpbp_node->dpbp, CMD_PRI_LOW, dpbp_node->token);
 	if (ret) {
-		PMD_INIT_LOG(ERR, "Failure cleaning dpbp device with"
-					" error code %d\n", ret);
+		DPAA2_BUS_ERR("Unable to reset buffer pool device. err(%d)",
+			      ret);
 		dpbp_close(&dpbp_node->dpbp, CMD_PRI_LOW, dpbp_node->token);
 		rte_free(dpbp_node);
 		return -1;
@@ -74,8 +74,6 @@ dpaa2_create_dpbp_device(int vdev_fd __rte_unused,
 
 	TAILQ_INSERT_TAIL(&dpbp_dev_list, dpbp_node, next);
 
-	RTE_LOG(DEBUG, PMD, "DPAA2: Added [dpbp.%d]\n", dpbp_id);
-
 	if (!register_once) {
 		rte_mbuf_set_platform_mempool_ops(DPAA2_MEMPOOL_OPS_NAME);
 		register_once = 1;
diff --git a/drivers/bus/fslmc/portal/dpaa2_hw_dpci.c b/drivers/bus/fslmc/portal/dpaa2_hw_dpci.c
index fb28e497..5ad0374d 100644
--- a/drivers/bus/fslmc/portal/dpaa2_hw_dpci.c
+++ b/drivers/bus/fslmc/portal/dpaa2_hw_dpci.c
@@ -39,13 +39,14 @@ rte_dpaa2_create_dpci_device(int vdev_fd __rte_unused,
 	struct dpci_attr attr;
 	struct dpci_rx_queue_cfg rx_queue_cfg;
 	struct dpci_rx_queue_attr rx_attr;
+	struct dpci_tx_queue_attr tx_attr;
 	int ret, i;
 
 	/* Allocate DPAA2 dpci handle */
 	dpci_node = rte_malloc(NULL, sizeof(struct dpaa2_dpci_dev), 0);
 	if (!dpci_node) {
-		PMD_INIT_LOG(ERR, "Memory allocation failed for DPCI Device");
-		return -1;
+		DPAA2_BUS_ERR("Memory allocation failed for DPCI Device");
+		return -ENOMEM;
 	}
 
 	/* Open the dpci object */
@@ -53,43 +54,57 @@ rte_dpaa2_create_dpci_device(int vdev_fd __rte_unused,
 	ret = dpci_open(&dpci_node->dpci,
 			CMD_PRI_LOW, dpci_id, &dpci_node->token);
 	if (ret) {
-		PMD_INIT_LOG(ERR, "Resource alloc failure with err code: %d",
-			     ret);
-		rte_free(dpci_node);
-		return -1;
+		DPAA2_BUS_ERR("Resource alloc failure with err code: %d", ret);
+		goto err;
 	}
 
 	/* Get the device attributes */
 	ret = dpci_get_attributes(&dpci_node->dpci,
 				  CMD_PRI_LOW, dpci_node->token, &attr);
 	if (ret != 0) {
-		PMD_INIT_LOG(ERR, "Reading device failed with err code: %d",
-			     ret);
-		rte_free(dpci_node);
-		return -1;
+		DPAA2_BUS_ERR("Reading device failed with err code: %d", ret);
+		goto err;
 	}
 
-	/* Set up the Rx Queue */
-	memset(&rx_queue_cfg, 0, sizeof(struct dpci_rx_queue_cfg));
-	ret = dpci_set_rx_queue(&dpci_node->dpci,
-				CMD_PRI_LOW,
-				dpci_node->token,
-				0, &rx_queue_cfg);
-	if (ret) {
-		PMD_INIT_LOG(ERR, "Setting Rx queue failed with err code: %d",
-			     ret);
-		rte_free(dpci_node);
-		return -1;
+	for (i = 0; i < DPAA2_DPCI_MAX_QUEUES; i++) {
+		struct dpaa2_queue *rxq;
+
+		memset(&rx_queue_cfg, 0, sizeof(struct dpci_rx_queue_cfg));
+		ret = dpci_set_rx_queue(&dpci_node->dpci,
+					CMD_PRI_LOW,
+					dpci_node->token,
+					i, &rx_queue_cfg);
+		if (ret) {
+			DPAA2_BUS_ERR("Setting Rx queue failed with err code: %d",
+				      ret);
+			goto err;
+		}
+
+		/* Allocate DQ storage for the DPCI Rx queues */
+		rxq = &(dpci_node->rx_queue[i]);
+		rxq->q_storage = rte_malloc("dq_storage",
+					sizeof(struct queue_storage_info_t),
+					RTE_CACHE_LINE_SIZE);
+		if (!rxq->q_storage) {
+			DPAA2_BUS_ERR("q_storage allocation failed\n");
+			ret = -ENOMEM;
+			goto err;
+		}
+
+		memset(rxq->q_storage, 0, sizeof(struct queue_storage_info_t));
+		ret = dpaa2_alloc_dq_storage(rxq->q_storage);
+		if (ret) {
+			DPAA2_BUS_ERR("dpaa2_alloc_dq_storage failed\n");
+			goto err;
+		}
 	}
 
 	/* Enable the device */
 	ret = dpci_enable(&dpci_node->dpci,
 			  CMD_PRI_LOW, dpci_node->token);
 	if (ret != 0) {
-		PMD_INIT_LOG(ERR, "Enabling device failed with err code: %d",
-			     ret);
-		rte_free(dpci_node);
-		return -1;
+		DPAA2_BUS_ERR("Enabling device failed with err code: %d", ret);
+		goto err;
 	}
 
 	for (i = 0; i < DPAA2_DPCI_MAX_QUEUES; i++) {
@@ -99,14 +114,22 @@ rte_dpaa2_create_dpci_device(int vdev_fd __rte_unused,
 					dpci_node->token, i,
 					&rx_attr);
 		if (ret != 0) {
-			PMD_INIT_LOG(ERR,
-				     "Reading device failed with err code: %d",
-				ret);
-			rte_free(dpci_node);
-			return -1;
+			DPAA2_BUS_ERR("Rx queue fetch failed with err code: %d",
+				      ret);
+			goto err;
 		}
+		dpci_node->rx_queue[i].fqid = rx_attr.fqid;
 
-		dpci_node->queue[i].fqid = rx_attr.fqid;
+		ret = dpci_get_tx_queue(&dpci_node->dpci,
+					CMD_PRI_LOW,
+					dpci_node->token, i,
+					&tx_attr);
+		if (ret != 0) {
+			DPAA2_BUS_ERR("Reading device failed with err code: %d",
+				      ret);
+			goto err;
+		}
+		dpci_node->tx_queue[i].fqid = tx_attr.fqid;
 	}
 
 	dpci_node->dpci_id = dpci_id;
@@ -114,9 +137,20 @@ rte_dpaa2_create_dpci_device(int vdev_fd __rte_unused,
 
 	TAILQ_INSERT_TAIL(&dpci_dev_list, dpci_node, next);
 
-	RTE_LOG(DEBUG, PMD, "DPAA2: Added [dpci.%d]\n", dpci_id);
-
 	return 0;
+
+err:
+	for (i = 0; i < DPAA2_DPCI_MAX_QUEUES; i++) {
+		struct dpaa2_queue *rxq = &(dpci_node->rx_queue[i]);
+
+		if (rxq->q_storage) {
+			dpaa2_free_dq_storage(rxq->q_storage);
+			rte_free(rxq->q_storage);
+		}
+	}
+	rte_free(dpci_node);
+
+	return ret;
 }
 
 struct dpaa2_dpci_dev *rte_dpaa2_alloc_dpci_dev(void)
diff --git a/drivers/bus/fslmc/portal/dpaa2_hw_dpio.c b/drivers/bus/fslmc/portal/dpaa2_hw_dpio.c
index eefde155..99f70be1 100644
--- a/drivers/bus/fslmc/portal/dpaa2_hw_dpio.c
+++ b/drivers/bus/fslmc/portal/dpaa2_hw_dpio.c
@@ -101,7 +101,7 @@ static void dpaa2_affine_dpio_intr_to_respective_core(int32_t dpio_id)
 	snprintf(string, STRING_LEN, "dpio.%d", dpio_id);
 	file = fopen("/proc/interrupts", "r");
 	if (!file) {
-		PMD_DRV_LOG(WARNING, "Failed to open /proc/interrupts file\n");
+		DPAA2_BUS_WARN("Failed to open /proc/interrupts file");
 		return;
 	}
 	while (getline(&temp, &len, file) != -1) {
@@ -112,8 +112,8 @@ static void dpaa2_affine_dpio_intr_to_respective_core(int32_t dpio_id)
 	}
 
 	if (!token) {
-		PMD_DRV_LOG(WARNING, "Failed to get interrupt id for dpio.%d\n",
-			    dpio_id);
+		DPAA2_BUS_WARN("Failed to get interrupt id for dpio.%d",
+			       dpio_id);
 		if (temp)
 			free(temp);
 		fclose(file);
@@ -125,10 +125,10 @@ static void dpaa2_affine_dpio_intr_to_respective_core(int32_t dpio_id)
 		 cpu_mask, token);
 	ret = system(command);
 	if (ret < 0)
-		PMD_DRV_LOG(WARNING,
-			"Failed to affine interrupts on respective core\n");
+		DPAA2_BUS_WARN(
+			"Failed to affine interrupts on respective core");
 	else
-		PMD_DRV_LOG(WARNING, " %s command is executed\n", command);
+		DPAA2_BUS_DEBUG(" %s command is executed", command);
 
 	free(temp);
 	fclose(file);
@@ -143,7 +143,7 @@ static int dpaa2_dpio_intr_init(struct dpaa2_dpio_dev *dpio_dev)
 	dpio_epoll_fd = epoll_create(1);
 	ret = rte_dpaa2_intr_enable(&dpio_dev->intr_handle, 0);
 	if (ret) {
-		PMD_DRV_LOG(ERR, "Interrupt registeration failed\n");
+		DPAA2_BUS_ERR("Interrupt registeration failed");
 		return -1;
 	}
 
@@ -166,7 +166,7 @@ static int dpaa2_dpio_intr_init(struct dpaa2_dpio_dev *dpio_dev)
 
 	ret = epoll_ctl(dpio_epoll_fd, EPOLL_CTL_ADD, eventfd, &epoll_ev);
 	if (ret < 0) {
-		PMD_DRV_LOG(ERR, "epoll_ctl failed\n");
+		DPAA2_BUS_ERR("epoll_ctl failed");
 		return -1;
 	}
 	dpio_dev->epoll_fd = dpio_epoll_fd;
@@ -185,28 +185,27 @@ configure_dpio_qbman_swp(struct dpaa2_dpio_dev *dpio_dev)
 
 	dpio_dev->dpio = malloc(sizeof(struct fsl_mc_io));
 	if (!dpio_dev->dpio) {
-		PMD_INIT_LOG(ERR, "Memory allocation failure\n");
+		DPAA2_BUS_ERR("Memory allocation failure");
 		return -1;
 	}
 
-	PMD_DRV_LOG(DEBUG, "Allocated  DPIO Portal[%p]", dpio_dev->dpio);
 	dpio_dev->dpio->regs = dpio_dev->mc_portal;
 	if (dpio_open(dpio_dev->dpio, CMD_PRI_LOW, dpio_dev->hw_id,
 		      &dpio_dev->token)) {
-		PMD_INIT_LOG(ERR, "Failed to allocate IO space\n");
+		DPAA2_BUS_ERR("Failed to allocate IO space");
 		free(dpio_dev->dpio);
 		return -1;
 	}
 
 	if (dpio_reset(dpio_dev->dpio, CMD_PRI_LOW, dpio_dev->token)) {
-		PMD_INIT_LOG(ERR, "Failed to reset dpio\n");
+		DPAA2_BUS_ERR("Failed to reset dpio");
 		dpio_close(dpio_dev->dpio, CMD_PRI_LOW, dpio_dev->token);
 		free(dpio_dev->dpio);
 		return -1;
 	}
 
 	if (dpio_enable(dpio_dev->dpio, CMD_PRI_LOW, dpio_dev->token)) {
-		PMD_INIT_LOG(ERR, "Failed to Enable dpio\n");
+		DPAA2_BUS_ERR("Failed to Enable dpio");
 		dpio_close(dpio_dev->dpio, CMD_PRI_LOW, dpio_dev->token);
 		free(dpio_dev->dpio);
 		return -1;
@@ -214,7 +213,7 @@ configure_dpio_qbman_swp(struct dpaa2_dpio_dev *dpio_dev)
 
 	if (dpio_get_attributes(dpio_dev->dpio, CMD_PRI_LOW,
 				dpio_dev->token, &attr)) {
-		PMD_INIT_LOG(ERR, "DPIO Get attribute failed\n");
+		DPAA2_BUS_ERR("DPIO Get attribute failed");
 		dpio_disable(dpio_dev->dpio, CMD_PRI_LOW, dpio_dev->token);
 		dpio_close(dpio_dev->dpio, CMD_PRI_LOW,  dpio_dev->token);
 		free(dpio_dev->dpio);
@@ -231,7 +230,7 @@ configure_dpio_qbman_swp(struct dpaa2_dpio_dev *dpio_dev)
 
 	dpio_dev->sw_portal = qbman_swp_init(&p_des);
 	if (dpio_dev->sw_portal == NULL) {
-		PMD_DRV_LOG(ERR, " QBMan SW Portal Init failed\n");
+		DPAA2_BUS_ERR("QBMan SW Portal Init failed");
 		dpio_close(dpio_dev->dpio, CMD_PRI_LOW, dpio_dev->token);
 		free(dpio_dev->dpio);
 		return -1;
@@ -249,7 +248,7 @@ dpaa2_configure_stashing(struct dpaa2_dpio_dev *dpio_dev, int cpu_id)
 	if (cpu_id < 0) {
 		cpu_id = rte_get_master_lcore();
 		if (cpu_id < 0) {
-			RTE_LOG(ERR, PMD, "\tGetting CPU Index failed\n");
+			DPAA2_BUS_ERR("Getting CPU Index failed");
 			return -1;
 		}
 	}
@@ -258,19 +257,19 @@ dpaa2_configure_stashing(struct dpaa2_dpio_dev *dpio_dev, int cpu_id)
 	 */
 
 	sdest = dpaa2_core_cluster_sdest(cpu_id);
-	PMD_DRV_LOG(DEBUG, "Portal= %d  CPU= %u SDEST= %d",
-		    dpio_dev->index, cpu_id, sdest);
+	DPAA2_BUS_DEBUG("Portal= %d  CPU= %u SDEST= %d",
+			dpio_dev->index, cpu_id, sdest);
 
 	ret = dpio_set_stashing_destination(dpio_dev->dpio, CMD_PRI_LOW,
 					    dpio_dev->token, sdest);
 	if (ret) {
-		PMD_DRV_LOG(ERR, "%d ERROR in SDEST\n",  ret);
+		DPAA2_BUS_ERR("%d ERROR in SDEST",  ret);
 		return -1;
 	}
 
 #ifdef RTE_LIBRTE_PMD_DPAA2_EVENTDEV
 	if (dpaa2_dpio_intr_init(dpio_dev)) {
-		PMD_DRV_LOG(ERR, "Interrupt registration failed for dpio\n");
+		DPAA2_BUS_ERR("Interrupt registration failed for dpio");
 		return -1;
 	}
 #endif
@@ -291,12 +290,12 @@ struct dpaa2_dpio_dev *dpaa2_get_qbman_swp(int cpu_id)
 	if (!dpio_dev)
 		return NULL;
 
-	PMD_DRV_LOG(DEBUG, "New Portal=0x%x (%d) affined thread - %lu",
-		    dpio_dev, dpio_dev->index, syscall(SYS_gettid));
+	DPAA2_BUS_DEBUG("New Portal %p (%d) affined thread - %lu",
+			dpio_dev, dpio_dev->index, syscall(SYS_gettid));
 
 	ret = dpaa2_configure_stashing(dpio_dev, cpu_id);
 	if (ret)
-		PMD_DRV_LOG(ERR, "dpaa2_configure_stashing failed");
+		DPAA2_BUS_ERR("dpaa2_configure_stashing failed");
 
 	return dpio_dev;
 }
@@ -314,8 +313,9 @@ dpaa2_affine_qbman_swp(void)
 		return -1;
 
 	if (dpaa2_io_portal[lcore_id].dpio_dev) {
-		PMD_DRV_LOG(INFO, "DPAA Portal=0x%x (%d) is being shared"
-			    " between thread %lu and current  %lu",
+		DPAA2_BUS_DP_INFO("DPAA Portal=%p (%d) is being shared"
+			    " between thread %" PRIu64 " and current "
+			    "%" PRIu64 "\n",
 			    dpaa2_io_portal[lcore_id].dpio_dev,
 			    dpaa2_io_portal[lcore_id].dpio_dev->index,
 			    dpaa2_io_portal[lcore_id].net_tid,
@@ -326,7 +326,8 @@ dpaa2_affine_qbman_swp(void)
 				 [lcore_id].dpio_dev->ref_count);
 		dpaa2_io_portal[lcore_id].net_tid = tid;
 
-		PMD_DRV_LOG(DEBUG, "Old Portal=0x%x (%d) affined thread - %lu",
+		DPAA2_BUS_DP_DEBUG("Old Portal=%p (%d) affined thread - "
+				   "%" PRIu64 "\n",
 			    dpaa2_io_portal[lcore_id].dpio_dev,
 			    dpaa2_io_portal[lcore_id].dpio_dev->index,
 			    tid);
@@ -348,7 +349,7 @@ dpaa2_affine_qbman_swp(void)
 }
 
 int
-dpaa2_affine_qbman_swp_sec(void)
+dpaa2_affine_qbman_ethrx_swp(void)
 {
 	unsigned int lcore_id = rte_lcore_id();
 	uint64_t tid = syscall(SYS_gettid);
@@ -359,32 +360,36 @@ dpaa2_affine_qbman_swp_sec(void)
 	else if (lcore_id >= RTE_MAX_LCORE)
 		return -1;
 
-	if (dpaa2_io_portal[lcore_id].sec_dpio_dev) {
-		PMD_DRV_LOG(INFO, "DPAA Portal=0x%x (%d) is being shared"
-			    " between thread %lu and current  %lu",
-			    dpaa2_io_portal[lcore_id].sec_dpio_dev,
-			    dpaa2_io_portal[lcore_id].sec_dpio_dev->index,
-			    dpaa2_io_portal[lcore_id].sec_tid,
-			    tid);
-		RTE_PER_LCORE(_dpaa2_io).sec_dpio_dev
-			= dpaa2_io_portal[lcore_id].sec_dpio_dev;
+	if (dpaa2_io_portal[lcore_id].ethrx_dpio_dev) {
+		DPAA2_BUS_DP_INFO(
+			"DPAA Portal=%p (%d) is being shared between thread"
+			" %" PRIu64 " and current %" PRIu64 "\n",
+			dpaa2_io_portal[lcore_id].ethrx_dpio_dev,
+			dpaa2_io_portal[lcore_id].ethrx_dpio_dev->index,
+			dpaa2_io_portal[lcore_id].sec_tid,
+			tid);
+		RTE_PER_LCORE(_dpaa2_io).ethrx_dpio_dev
+			= dpaa2_io_portal[lcore_id].ethrx_dpio_dev;
 		rte_atomic16_inc(&dpaa2_io_portal
-				 [lcore_id].sec_dpio_dev->ref_count);
+				 [lcore_id].ethrx_dpio_dev->ref_count);
 		dpaa2_io_portal[lcore_id].sec_tid = tid;
 
-		PMD_DRV_LOG(DEBUG, "Old Portal=0x%x (%d) affined thread - %lu",
-			    dpaa2_io_portal[lcore_id].sec_dpio_dev,
-			    dpaa2_io_portal[lcore_id].sec_dpio_dev->index,
-			    tid);
+		DPAA2_BUS_DP_DEBUG(
+			"Old Portal=%p (%d) affined thread"
+			" - %" PRIu64 "\n",
+			dpaa2_io_portal[lcore_id].ethrx_dpio_dev,
+			dpaa2_io_portal[lcore_id].ethrx_dpio_dev->index,
+			tid);
 		return 0;
 	}
 
 	/* Populate the dpaa2_io_portal structure */
-	dpaa2_io_portal[lcore_id].sec_dpio_dev = dpaa2_get_qbman_swp(lcore_id);
+	dpaa2_io_portal[lcore_id].ethrx_dpio_dev =
+		dpaa2_get_qbman_swp(lcore_id);
 
-	if (dpaa2_io_portal[lcore_id].sec_dpio_dev) {
-		RTE_PER_LCORE(_dpaa2_io).sec_dpio_dev
-			= dpaa2_io_portal[lcore_id].sec_dpio_dev;
+	if (dpaa2_io_portal[lcore_id].ethrx_dpio_dev) {
+		RTE_PER_LCORE(_dpaa2_io).ethrx_dpio_dev
+			= dpaa2_io_portal[lcore_id].ethrx_dpio_dev;
 		dpaa2_io_portal[lcore_id].sec_tid = tid;
 		return 0;
 	} else {
@@ -401,15 +406,14 @@ dpaa2_create_dpio_device(int vdev_fd,
 	struct vfio_region_info reg_info = { .argsz = sizeof(reg_info)};
 
 	if (obj_info->num_regions < NUM_DPIO_REGIONS) {
-		PMD_INIT_LOG(ERR, "ERROR, Not sufficient number "
-				"of DPIO regions.\n");
+		DPAA2_BUS_ERR("Not sufficient number of DPIO regions");
 		return -1;
 	}
 
 	dpio_dev = rte_malloc(NULL, sizeof(struct dpaa2_dpio_dev),
 			      RTE_CACHE_LINE_SIZE);
 	if (!dpio_dev) {
-		PMD_INIT_LOG(ERR, "Memory allocation failed for DPIO Device\n");
+		DPAA2_BUS_ERR("Memory allocation failed for DPIO Device");
 		return -1;
 	}
 
@@ -421,31 +425,31 @@ dpaa2_create_dpio_device(int vdev_fd,
 
 	reg_info.index = 0;
 	if (ioctl(vdev_fd, VFIO_DEVICE_GET_REGION_INFO, &reg_info)) {
-		PMD_INIT_LOG(ERR, "vfio: error getting region info\n");
+		DPAA2_BUS_ERR("vfio: error getting region info");
 		rte_free(dpio_dev);
 		return -1;
 	}
 
 	dpio_dev->ce_size = reg_info.size;
-	dpio_dev->qbman_portal_ce_paddr = (uint64_t)mmap(NULL, reg_info.size,
+	dpio_dev->qbman_portal_ce_paddr = (size_t)mmap(NULL, reg_info.size,
 				PROT_WRITE | PROT_READ, MAP_SHARED,
 				vdev_fd, reg_info.offset);
 
 	reg_info.index = 1;
 	if (ioctl(vdev_fd, VFIO_DEVICE_GET_REGION_INFO, &reg_info)) {
-		PMD_INIT_LOG(ERR, "vfio: error getting region info\n");
+		DPAA2_BUS_ERR("vfio: error getting region info");
 		rte_free(dpio_dev);
 		return -1;
 	}
 
 	dpio_dev->ci_size = reg_info.size;
-	dpio_dev->qbman_portal_ci_paddr = (uint64_t)mmap(NULL, reg_info.size,
+	dpio_dev->qbman_portal_ci_paddr = (size_t)mmap(NULL, reg_info.size,
 				PROT_WRITE | PROT_READ, MAP_SHARED,
 				vdev_fd, reg_info.offset);
 
 	if (configure_dpio_qbman_swp(dpio_dev)) {
-		PMD_INIT_LOG(ERR,
-			     "Fail to configure the dpio qbman portal for %d\n",
+		DPAA2_BUS_ERR(
+			     "Fail to configure the dpio qbman portal for %d",
 			     dpio_dev->hw_id);
 		rte_free(dpio_dev);
 		return -1;
@@ -455,8 +459,8 @@ dpaa2_create_dpio_device(int vdev_fd,
 	dpio_dev->index = io_space_count;
 
 	if (rte_dpaa2_vfio_setup_intr(&dpio_dev->intr_handle, vdev_fd, 1)) {
-		PMD_INIT_LOG(ERR, "Fail to setup interrupt for %d\n",
-			     dpio_dev->hw_id);
+		DPAA2_BUS_ERR("Fail to setup interrupt for %d",
+			      dpio_dev->hw_id);
 		rte_free(dpio_dev);
 	}
 
@@ -466,21 +470,20 @@ dpaa2_create_dpio_device(int vdev_fd,
 
 		if (mc_get_soc_version(dpio_dev->dpio,
 				       CMD_PRI_LOW, &mc_plat_info)) {
-			PMD_INIT_LOG(ERR, "\tmc_get_soc_version failed\n");
+			DPAA2_BUS_ERR("Unable to get SoC version information");
 		} else if ((mc_plat_info.svr & 0xffff0000) == SVR_LS1080A) {
 			dpaa2_core_cluster_base = 0x02;
 			dpaa2_cluster_sz = 4;
-			PMD_INIT_LOG(DEBUG, "\tLS108x (A53) Platform Detected");
+			DPAA2_BUS_DEBUG("LS108x (A53) Platform Detected");
 		} else if ((mc_plat_info.svr & 0xffff0000) == SVR_LX2160A) {
 			dpaa2_core_cluster_base = 0x00;
 			dpaa2_cluster_sz = 2;
-			PMD_INIT_LOG(DEBUG, "\tLX2160 Platform Detected");
+			DPAA2_BUS_DEBUG("LX2160 Platform Detected");
 		}
 		dpaa2_svr_family = (mc_plat_info.svr & 0xffff0000);
 	}
 
 	TAILQ_INSERT_TAIL(&dpio_dev_list, dpio_dev, next);
-	RTE_LOG(DEBUG, PMD, "DPAA2: Added [dpio.%d]\n", object_id);
 
 	return 0;
 }
diff --git a/drivers/bus/fslmc/portal/dpaa2_hw_dpio.h b/drivers/bus/fslmc/portal/dpaa2_hw_dpio.h
index c0bd8782..d593eea7 100644
--- a/drivers/bus/fslmc/portal/dpaa2_hw_dpio.h
+++ b/drivers/bus/fslmc/portal/dpaa2_hw_dpio.h
@@ -13,7 +13,7 @@
 
 struct dpaa2_io_portal_t {
 	struct dpaa2_dpio_dev *dpio_dev;
-	struct dpaa2_dpio_dev *sec_dpio_dev;
+	struct dpaa2_dpio_dev *ethrx_dpio_dev;
 	uint64_t net_tid;
 	uint64_t sec_tid;
 	void *eventdev;
@@ -25,8 +25,8 @@ RTE_DECLARE_PER_LCORE(struct dpaa2_io_portal_t, _dpaa2_io);
 #define DPAA2_PER_LCORE_DPIO RTE_PER_LCORE(_dpaa2_io).dpio_dev
 #define DPAA2_PER_LCORE_PORTAL DPAA2_PER_LCORE_DPIO->sw_portal
 
-#define DPAA2_PER_LCORE_SEC_DPIO RTE_PER_LCORE(_dpaa2_io).sec_dpio_dev
-#define DPAA2_PER_LCORE_SEC_PORTAL DPAA2_PER_LCORE_SEC_DPIO->sw_portal
+#define DPAA2_PER_LCORE_ETHRX_DPIO RTE_PER_LCORE(_dpaa2_io).ethrx_dpio_dev
+#define DPAA2_PER_LCORE_ETHRX_PORTAL DPAA2_PER_LCORE_ETHRX_DPIO->sw_portal
 
 /* Variable to store DPAA2 platform type */
 extern uint32_t dpaa2_svr_family;
@@ -39,7 +39,7 @@ struct dpaa2_dpio_dev *dpaa2_get_qbman_swp(int cpu_id);
 int dpaa2_affine_qbman_swp(void);
 
 /* Affine additional DPIO portal to current crypto processing thread */
-int dpaa2_affine_qbman_swp_sec(void);
+int dpaa2_affine_qbman_ethrx_swp(void);
 
 /* allocate memory for FQ - dq storage */
 int
diff --git a/drivers/bus/fslmc/portal/dpaa2_hw_pvt.h b/drivers/bus/fslmc/portal/dpaa2_hw_pvt.h
index d421dbf0..82075936 100644
--- a/drivers/bus/fslmc/portal/dpaa2_hw_pvt.h
+++ b/drivers/bus/fslmc/portal/dpaa2_hw_pvt.h
@@ -142,7 +142,8 @@ struct dpaa2_dpci_dev {
 	uint16_t token;
 	rte_atomic16_t in_use;
 	uint32_t dpci_id; /*HW ID for DPCI object */
-	struct dpaa2_queue queue[DPAA2_DPCI_MAX_QUEUES];
+	struct dpaa2_queue rx_queue[DPAA2_DPCI_MAX_QUEUES];
+	struct dpaa2_queue tx_queue[DPAA2_DPCI_MAX_QUEUES];
 };
 
 /*! Global MCP list */
@@ -174,7 +175,7 @@ enum qbman_fd_format {
 };
 /*Macros to define operations on FD*/
 #define DPAA2_SET_FD_ADDR(fd, addr) do {			\
-	(fd)->simple.addr_lo = lower_32_bits((uint64_t)(addr));	\
+	(fd)->simple.addr_lo = lower_32_bits((size_t)(addr));	\
 	(fd)->simple.addr_hi = upper_32_bits((uint64_t)(addr));	\
 } while (0)
 #define DPAA2_SET_FD_LEN(fd, length)	((fd)->simple.len = length)
@@ -188,50 +189,55 @@ enum qbman_fd_format {
 	((fd)->simple.frc = (0x80000000 | (len)))
 #define DPAA2_GET_FD_FRC_PARSE_SUM(fd)	\
 			((uint16_t)(((fd)->simple.frc & 0xffff0000) >> 16))
-#define DPAA2_SET_FD_FRC(fd, frc)	((fd)->simple.frc = frc)
+#define DPAA2_SET_FD_FRC(fd, _frc)	((fd)->simple.frc = _frc)
 #define DPAA2_RESET_FD_CTRL(fd)	 ((fd)->simple.ctrl = 0)
 
 #define	DPAA2_SET_FD_ASAL(fd, asal)	((fd)->simple.ctrl |= (asal << 16))
 #define DPAA2_SET_FD_FLC(fd, addr)	do { \
-	(fd)->simple.flc_lo = lower_32_bits((uint64_t)(addr));	\
+	(fd)->simple.flc_lo = lower_32_bits((size_t)(addr));	\
 	(fd)->simple.flc_hi = upper_32_bits((uint64_t)(addr));	\
 } while (0)
 #define DPAA2_SET_FLE_INTERNAL_JD(fle, len) ((fle)->frc = (0x80000000 | (len)))
 #define DPAA2_GET_FLE_ADDR(fle)					\
-	(uint64_t)((((uint64_t)((fle)->addr_hi)) << 32) + (fle)->addr_lo)
+	(size_t)((((uint64_t)((fle)->addr_hi)) << 32) + (fle)->addr_lo)
 #define DPAA2_SET_FLE_ADDR(fle, addr) do { \
-	(fle)->addr_lo = lower_32_bits((uint64_t)addr);     \
-	(fle)->addr_hi = upper_32_bits((uint64_t)addr);	  \
+	(fle)->addr_lo = lower_32_bits((size_t)addr);		\
+	(fle)->addr_hi = upper_32_bits((uint64_t)addr);		\
 } while (0)
 #define DPAA2_GET_FLE_CTXT(fle)					\
-	(uint64_t)((((uint64_t)((fle)->reserved[1])) << 32) + \
-			(fle)->reserved[0])
+	((((uint64_t)((fle)->reserved[1])) << 32) + (fle)->reserved[0])
 #define DPAA2_FLE_SAVE_CTXT(fle, addr) do { \
-	(fle)->reserved[0] = lower_32_bits((uint64_t)addr);     \
-	(fle)->reserved[1] = upper_32_bits((uint64_t)addr);	  \
+	(fle)->reserved[0] = lower_32_bits((size_t)addr);	\
+	(fle)->reserved[1] = upper_32_bits((uint64_t)addr);	\
 } while (0)
 #define DPAA2_SET_FLE_OFFSET(fle, offset) \
 	((fle)->fin_bpid_offset |= (uint32_t)(offset) << 16)
-#define DPAA2_SET_FLE_BPID(fle, bpid) ((fle)->fin_bpid_offset |= (uint64_t)bpid)
+#define DPAA2_SET_FLE_LEN(fle, len)    ((fle)->length = len)
+#define DPAA2_SET_FLE_BPID(fle, bpid) ((fle)->fin_bpid_offset |= (size_t)bpid)
 #define DPAA2_GET_FLE_BPID(fle) ((fle)->fin_bpid_offset & 0x000000ff)
-#define DPAA2_SET_FLE_FIN(fle)	((fle)->fin_bpid_offset |= (uint64_t)1 << 31)
+#define DPAA2_SET_FLE_FIN(fle)	((fle)->fin_bpid_offset |= 1 << 31)
 #define DPAA2_SET_FLE_IVP(fle)   (((fle)->fin_bpid_offset |= 0x00004000))
+#define DPAA2_SET_FLE_BMT(fle)   (((fle)->fin_bpid_offset |= 0x00008000))
 #define DPAA2_SET_FD_COMPOUND_FMT(fd)	\
 	((fd)->simple.bpid_offset |= (uint32_t)1 << 28)
 #define DPAA2_GET_FD_ADDR(fd)	\
-((uint64_t)((((uint64_t)((fd)->simple.addr_hi)) << 32) + (fd)->simple.addr_lo))
+(((((uint64_t)((fd)->simple.addr_hi)) << 32) + (fd)->simple.addr_lo))
 
 #define DPAA2_GET_FD_LEN(fd)	((fd)->simple.len)
 #define DPAA2_GET_FD_BPID(fd)	(((fd)->simple.bpid_offset & 0x00003FFF))
 #define DPAA2_GET_FD_IVP(fd)   (((fd)->simple.bpid_offset & 0x00004000) >> 14)
 #define DPAA2_GET_FD_OFFSET(fd)	(((fd)->simple.bpid_offset & 0x0FFF0000) >> 16)
+#define DPAA2_GET_FD_FRC(fd)   ((fd)->simple.frc)
+#define DPAA2_GET_FD_FLC(fd) \
+	(((uint64_t)((fd)->simple.flc_hi) << 32) + (fd)->simple.flc_lo)
+#define DPAA2_GET_FD_ERR(fd)   ((fd)->simple.bpid_offset & 0x000000FF)
 #define DPAA2_GET_FLE_OFFSET(fle) (((fle)->fin_bpid_offset & 0x0FFF0000) >> 16)
 #define DPAA2_SET_FLE_SG_EXT(fle) ((fle)->fin_bpid_offset |= (uint64_t)1 << 29)
 #define DPAA2_IS_SET_FLE_SG_EXT(fle)	\
 	(((fle)->fin_bpid_offset & ((uint64_t)1 << 29)) ? 1 : 0)
 
 #define DPAA2_INLINE_MBUF_FROM_BUF(buf, meta_data_size) \
-	((struct rte_mbuf *)((uint64_t)(buf) - (meta_data_size)))
+	((struct rte_mbuf *)((size_t)(buf) - (meta_data_size)))
 
 #define DPAA2_ASAL_VAL (DPAA2_MBUF_HW_ANNOTATION / 64)
 
@@ -255,47 +261,53 @@ enum qbman_fd_format {
  */
 #define DPAA2_EQ_RESP_ALWAYS		1
 
+/* Various structures representing contiguous memory maps */
+struct dpaa2_memseg {
+	TAILQ_ENTRY(dpaa2_memseg) next;
+	char *vaddr;
+	rte_iova_t iova;
+	size_t len;
+};
+
+TAILQ_HEAD(dpaa2_memseg_list, dpaa2_memseg);
+extern struct dpaa2_memseg_list rte_dpaa2_memsegs;
+
 #ifdef RTE_LIBRTE_DPAA2_USE_PHYS_IOVA
 extern uint8_t dpaa2_virt_mode;
 static void *dpaa2_mem_ptov(phys_addr_t paddr) __attribute__((unused));
 /* todo - this is costly, need to write a fast coversion routine */
 static void *dpaa2_mem_ptov(phys_addr_t paddr)
 {
-	const struct rte_memseg *memseg;
-	int i;
+	struct dpaa2_memseg *ms;
 
 	if (dpaa2_virt_mode)
-		return (void *)paddr;
-
-	memseg = rte_eal_get_physmem_layout();
-
-	for (i = 0; i < RTE_MAX_MEMSEG && memseg[i].addr_64 != 0; i++) {
-		if (paddr >= memseg[i].iova &&
-		   (char *)paddr < (char *)memseg[i].iova + memseg[i].len)
-			return (void *)(memseg[i].addr_64
-				+ (paddr - memseg[i].iova));
+		return (void *)(size_t)paddr;
+
+	/* Check if the address is already part of the memseg list internally
+	 * maintained by the dpaa2 driver.
+	 */
+	TAILQ_FOREACH(ms, &rte_dpaa2_memsegs, next) {
+		if (paddr >= ms->iova && paddr <
+			ms->iova + ms->len)
+			return RTE_PTR_ADD(ms->vaddr, (uintptr_t)(paddr - ms->iova));
 	}
-	return NULL;
+
+	/* If not, Fallback to full memseg list searching */
+	return rte_mem_iova2virt(paddr);
 }
 
 static phys_addr_t dpaa2_mem_vtop(uint64_t vaddr) __attribute__((unused));
 static phys_addr_t dpaa2_mem_vtop(uint64_t vaddr)
 {
 	const struct rte_memseg *memseg;
-	int i;
 
 	if (dpaa2_virt_mode)
 		return vaddr;
 
-	memseg = rte_eal_get_physmem_layout();
-
-	for (i = 0; i < RTE_MAX_MEMSEG && memseg[i].addr_64 != 0; i++) {
-		if (vaddr >= memseg[i].addr_64 &&
-		    vaddr < memseg[i].addr_64 + memseg[i].len)
-			return memseg[i].iova
-				+ (vaddr - memseg[i].addr_64);
-	}
-	return (phys_addr_t)(NULL);
+	memseg = rte_mem_virt2memseg((void *)(uintptr_t)vaddr, NULL);
+	if (memseg)
+		return memseg->phys_addr + RTE_PTR_DIFF(vaddr, memseg->addr);
+	return (size_t)NULL;
 }
 
 /**
@@ -306,28 +318,26 @@ static phys_addr_t dpaa2_mem_vtop(uint64_t vaddr)
  */
 
 #define DPAA2_MBUF_VADDR_TO_IOVA(mbuf) ((mbuf)->buf_iova)
-#define DPAA2_OP_VADDR_TO_IOVA(op) (op->phys_addr)
 
 /**
  * macro to convert Virtual address to IOVA
  */
-#define DPAA2_VADDR_TO_IOVA(_vaddr) dpaa2_mem_vtop((uint64_t)(_vaddr))
+#define DPAA2_VADDR_TO_IOVA(_vaddr) dpaa2_mem_vtop((size_t)(_vaddr))
 
 /**
  * macro to convert IOVA to Virtual address
  */
-#define DPAA2_IOVA_TO_VADDR(_iova) dpaa2_mem_ptov((phys_addr_t)(_iova))
+#define DPAA2_IOVA_TO_VADDR(_iova) dpaa2_mem_ptov((size_t)(_iova))
 
 /**
  * macro to convert modify the memory containing IOVA to Virtual address
  */
 #define DPAA2_MODIFY_IOVA_TO_VADDR(_mem, _type) \
-	{_mem = (_type)(dpaa2_mem_ptov((phys_addr_t)(_mem))); }
+	{_mem = (_type)(dpaa2_mem_ptov((size_t)(_mem))); }
 
 #else	/* RTE_LIBRTE_DPAA2_USE_PHYS_IOVA */
 
 #define DPAA2_MBUF_VADDR_TO_IOVA(mbuf) ((mbuf)->buf_addr)
-#define DPAA2_OP_VADDR_TO_IOVA(op) (op)
 #define DPAA2_VADDR_TO_IOVA(_vaddr) (_vaddr)
 #define DPAA2_IOVA_TO_VADDR(_iova) (_iova)
 #define DPAA2_MODIFY_IOVA_TO_VADDR(_mem, _type)
diff --git a/drivers/bus/fslmc/qbman/include/fsl_qbman_base.h b/drivers/bus/fslmc/qbman/include/fsl_qbman_base.h
index 96269ed4..bb60a98f 100644
--- a/drivers/bus/fslmc/qbman/include/fsl_qbman_base.h
+++ b/drivers/bus/fslmc/qbman/include/fsl_qbman_base.h
@@ -6,8 +6,6 @@
 #ifndef _FSL_QBMAN_BASE_H
 #define _FSL_QBMAN_BASE_H
 
-typedef uint64_t  dma_addr_t;
-
 /**
  * DOC: QBMan basic structures
  *
diff --git a/drivers/bus/fslmc/qbman/qbman_portal.c b/drivers/bus/fslmc/qbman/qbman_portal.c
index e2217335..07145005 100644
--- a/drivers/bus/fslmc/qbman/qbman_portal.c
+++ b/drivers/bus/fslmc/qbman/qbman_portal.c
@@ -122,8 +122,7 @@ struct qbman_swp *qbman_swp_init(const struct qbman_swp_desc *d)
 	p->vdq.valid_bit = QB_VALID_BIT;
 	p->dqrr.next_idx = 0;
 	p->dqrr.valid_bit = QB_VALID_BIT;
-	qman_version = p->desc.qman_version;
-	if ((qman_version & 0xFFFF0000) < QMAN_REV_4100) {
+	if ((p->desc.qman_version & 0xFFFF0000) < QMAN_REV_4100) {
 		p->dqrr.dqrr_size = 4;
 		p->dqrr.reset_bug = 1;
 	} else {
@@ -553,10 +552,9 @@ int qbman_swp_enqueue_multiple(struct qbman_swp *s,
 
 	/* Flush all the cacheline without load/store in between */
 	eqcr_pi = s->eqcr.pi;
-	addr_cena = (uint64_t)s->sys.addr_cena;
+	addr_cena = (size_t)s->sys.addr_cena;
 	for (i = 0; i < num_enqueued; i++) {
-		dcbf((uint64_t *)(addr_cena +
-				QBMAN_CENA_SWP_EQCR(eqcr_pi & 7)));
+		dcbf((addr_cena + QBMAN_CENA_SWP_EQCR(eqcr_pi & 7)));
 		eqcr_pi++;
 		eqcr_pi &= 0xF;
 	}
@@ -620,10 +618,9 @@ int qbman_swp_enqueue_multiple_desc(struct qbman_swp *s,
 
 	/* Flush all the cacheline without load/store in between */
 	eqcr_pi = s->eqcr.pi;
-	addr_cena = (uint64_t)s->sys.addr_cena;
+	addr_cena = (size_t)s->sys.addr_cena;
 	for (i = 0; i < num_enqueued; i++) {
-		dcbf((uint64_t *)(addr_cena +
-				QBMAN_CENA_SWP_EQCR(eqcr_pi & 7)));
+		dcbf((addr_cena + QBMAN_CENA_SWP_EQCR(eqcr_pi & 7)));
 		eqcr_pi++;
 		eqcr_pi &= 0xF;
 	}
@@ -690,7 +687,7 @@ void qbman_pull_desc_set_storage(struct qbman_pull_desc *d,
 				 dma_addr_t storage_phys,
 				 int stash)
 {
-	d->pull.rsp_addr_virt = (uint64_t)storage;
+	d->pull.rsp_addr_virt = (size_t)storage;
 
 	if (!storage) {
 		d->pull.verb &= ~(1 << QB_VDQCR_VERB_RLS_SHIFT);
@@ -749,7 +746,7 @@ int qbman_swp_pull(struct qbman_swp *s, struct qbman_pull_desc *d)
 	}
 
 	d->pull.tok = s->sys.idx + 1;
-	s->vdq.storage = (void *)d->pull.rsp_addr_virt;
+	s->vdq.storage = (void *)(size_t)d->pull.rsp_addr_virt;
 	p = qbman_cena_write_start_wo_shadow(&s->sys, QBMAN_CENA_SWP_VDQCR);
 	memcpy(&p[1], &cl[1], 12);
 
diff --git a/drivers/bus/fslmc/qbman/qbman_portal.h b/drivers/bus/fslmc/qbman/qbman_portal.h
index 8bff0b4f..dbea22a1 100644
--- a/drivers/bus/fslmc/qbman/qbman_portal.h
+++ b/drivers/bus/fslmc/qbman/qbman_portal.h
@@ -7,7 +7,6 @@
 #include "qbman_sys.h"
 #include <fsl_qbman_portal.h>
 
-uint32_t qman_version;
 #define QMAN_REV_4000   0x04000000
 #define QMAN_REV_4100   0x04010000
 #define QMAN_REV_4101   0x04010001
diff --git a/drivers/bus/fslmc/qbman/qbman_sys.h b/drivers/bus/fslmc/qbman/qbman_sys.h
index 846788ea..2bd33ea5 100644
--- a/drivers/bus/fslmc/qbman/qbman_sys.h
+++ b/drivers/bus/fslmc/qbman/qbman_sys.h
@@ -20,6 +20,9 @@
 
 #include "qbman_sys_decl.h"
 
+#define CENA_WRITE_ENABLE 0
+#define CINH_WRITE_ENABLE 1
+
 /* Debugging assists */
 static inline void __hexdump(unsigned long start, unsigned long end,
 			     unsigned long p, size_t sz, const unsigned char *c)
@@ -178,7 +181,11 @@ static inline void *qbman_cena_write_start_wo_shadow(struct qbman_swp_sys *s,
 		s->addr_cena, s->idx, offset);
 #endif
 	QBMAN_BUG_ON(offset & 63);
+#ifdef RTE_ARCH_64
 	return (s->addr_cena + offset);
+#else
+	return (s->addr_cinh + offset);
+#endif
 }
 
 static inline void qbman_cena_write_complete(struct qbman_swp_sys *s,
@@ -191,11 +198,19 @@ static inline void qbman_cena_write_complete(struct qbman_swp_sys *s,
 		s->addr_cena, s->idx, offset, shadow);
 	hexdump(cmd, 64);
 #endif
+#ifdef RTE_ARCH_64
 	for (loop = 15; loop >= 1; loop--)
 		__raw_writel(shadow[loop], s->addr_cena +
 					 offset + loop * 4);
 	lwsync();
 		__raw_writel(shadow[0], s->addr_cena + offset);
+#else
+	for (loop = 15; loop >= 1; loop--)
+		__raw_writel(shadow[loop], s->addr_cinh +
+					 offset + loop * 4);
+	lwsync();
+	__raw_writel(shadow[0], s->addr_cinh + offset);
+#endif
 	dcbf(s->addr_cena + offset);
 }
 
@@ -224,9 +239,15 @@ static inline void *qbman_cena_read(struct qbman_swp_sys *s, uint32_t offset)
 		s->addr_cena, s->idx, offset, shadow);
 #endif
 
+#ifdef RTE_ARCH_64
 	for (loop = 0; loop < 16; loop++)
 		shadow[loop] = __raw_readl(s->addr_cena + offset
 					+ loop * 4);
+#else
+	for (loop = 0; loop < 16; loop++)
+		shadow[loop] = __raw_readl(s->addr_cinh + offset
+					+ loop * 4);
+#endif
 #ifdef QBMAN_CENA_TRACE
 	hexdump(shadow, 64);
 #endif
@@ -313,6 +334,11 @@ static inline int qbman_swp_sys_init(struct qbman_swp_sys *s,
 				     uint8_t dqrr_size)
 {
 	uint32_t reg;
+#ifdef RTE_ARCH_64
+	uint8_t wn = CENA_WRITE_ENABLE;
+#else
+	uint8_t wn = CINH_WRITE_ENABLE;
+#endif
 
 	s->addr_cena = d->cena_bar;
 	s->addr_cinh = d->cinh_bar;
@@ -333,10 +359,10 @@ static inline int qbman_swp_sys_init(struct qbman_swp_sys *s,
 	QBMAN_BUG_ON(reg);
 #endif
 	if (s->eqcr_mode == qman_eqcr_vb_array)
-		reg = qbman_set_swp_cfg(dqrr_size, 0, 0, 3, 2, 3, 1, 1, 1, 1,
+		reg = qbman_set_swp_cfg(dqrr_size, wn, 0, 3, 2, 3, 1, 1, 1, 1,
 					1, 1);
 	else
-		reg = qbman_set_swp_cfg(dqrr_size, 0, 1, 3, 2, 2, 1, 1, 1, 1,
+		reg = qbman_set_swp_cfg(dqrr_size, wn, 1, 3, 2, 2, 1, 1, 1, 1,
 					1, 1);
 	qbman_cinh_write(s, QBMAN_CINH_SWP_CFG, reg);
 	reg = qbman_cinh_read(s, QBMAN_CINH_SWP_CFG);
diff --git a/drivers/bus/fslmc/qbman/qbman_sys_decl.h b/drivers/bus/fslmc/qbman/qbman_sys_decl.h
index f82bb18c..fa6977fe 100644
--- a/drivers/bus/fslmc/qbman/qbman_sys_decl.h
+++ b/drivers/bus/fslmc/qbman/qbman_sys_decl.h
@@ -15,6 +15,7 @@
 	/****************/
 	/* arch assists */
 	/****************/
+#if defined(RTE_ARCH_ARM64)
 #define dcbz(p) { asm volatile("dc zva, %0" : : "r" (p) : "memory"); }
 #define lwsync() { asm volatile("dmb st" : : : "memory"); }
 #define dcbf(p) { asm volatile("dc cvac, %0" : : "r"(p) : "memory"); }
@@ -28,3 +29,25 @@ static inline void prefetch_for_store(void *p)
 {
 	asm volatile("prfm pstl1keep, [%0, #0]" : : "r" (p));
 }
+#elif defined(RTE_ARCH_ARM)
+#define dcbz(p) memset(p, 0, 64)
+#define lwsync() { asm volatile("dmb st" : : : "memory"); }
+#define dcbf(p)	RTE_SET_USED(p)
+#define dccivac(p)	RTE_SET_USED(p)
+#define prefetch_for_load(p) { asm volatile ("pld [%0]" : : "r" (p)); }
+#define prefetch_for_store(p) { asm volatile ("pld [%0]" : : "r" (p)); }
+
+#else
+#define dcbz(p)	RTE_SET_USED(p)
+#define lwsync()
+#define dcbf(p)	RTE_SET_USED(p)
+#define dccivac(p)	RTE_SET_USED(p)
+static inline void prefetch_for_load(void *p)
+{
+	RTE_SET_USED(p);
+}
+static inline void prefetch_for_store(void *p)
+{
+	RTE_SET_USED(p);
+}
+#endif
diff --git a/drivers/bus/fslmc/rte_bus_fslmc_version.map b/drivers/bus/fslmc/rte_bus_fslmc_version.map
index b7db0741..fe45a113 100644
--- a/drivers/bus/fslmc/rte_bus_fslmc_version.map
+++ b/drivers/bus/fslmc/rte_bus_fslmc_version.map
@@ -2,7 +2,6 @@ DPDK_17.05 {
 	global:
 
 	dpaa2_affine_qbman_swp;
-	dpaa2_affine_qbman_swp_sec;
 	dpaa2_alloc_dpbp_dev;
 	dpaa2_alloc_dq_storage;
 	dpaa2_free_dpbp_dev;
@@ -101,3 +100,19 @@ DPDK_18.02 {
 	rte_fslmc_get_device_count;
 
 } DPDK_17.11;
+
+DPDK_18.05 {
+	global:
+
+	dpaa2_affine_qbman_ethrx_swp;
+	dpdmai_close;
+	dpdmai_disable;
+	dpdmai_enable;
+	dpdmai_get_attributes;
+	dpdmai_get_rx_queue;
+	dpdmai_get_tx_queue;
+	dpdmai_open;
+	dpdmai_set_rx_queue;
+	rte_dpaa2_free_dpci_dev;
+
+} DPDK_18.02;
diff --git a/drivers/bus/fslmc/rte_fslmc.h b/drivers/bus/fslmc/rte_fslmc.h
index 69d0fec7..cea5b78f 100644
--- a/drivers/bus/fslmc/rte_fslmc.h
+++ b/drivers/bus/fslmc/rte_fslmc.h
@@ -31,6 +31,7 @@ extern "C" {
 #include <rte_dev.h>
 #include <rte_bus.h>
 #include <rte_tailq.h>
+#include <rte_devargs.h>
 
 #include <fslmc_vfio.h>
 
@@ -49,6 +50,9 @@ struct rte_dpaa2_driver;
 TAILQ_HEAD(rte_fslmc_device_list, rte_dpaa2_device);
 TAILQ_HEAD(rte_fslmc_driver_list, rte_dpaa2_driver);
 
+#define RTE_DEV_TO_FSLMC_CONST(ptr) \
+	container_of(ptr, const struct rte_dpaa2_device, device)
+
 extern struct rte_fslmc_bus rte_fslmc_bus;
 
 enum rte_dpaa2_dev_type {
@@ -61,6 +65,7 @@ enum rte_dpaa2_dev_type {
 	DPAA2_IO,	/**< DPIO type device */
 	DPAA2_CI,	/**< DPCI type device */
 	DPAA2_MPORTAL,  /**< DPMCP type device */
+	DPAA2_QDMA,     /**< DPDMAI type device */
 	/* Unknown device placeholder */
 	DPAA2_UNKNOWN,
 	DPAA2_DEVTYPE_MAX,
@@ -91,6 +96,7 @@ struct rte_dpaa2_device {
 	union {
 		struct rte_eth_dev *eth_dev;        /**< ethernet device */
 		struct rte_cryptodev *cryptodev;    /**< Crypto Device */
+		struct rte_rawdev *rawdev;          /**< Raw Device */
 	};
 	enum rte_dpaa2_dev_type dev_type;   /**< Device Type */
 	uint16_t object_id;                 /**< DPAA2 Object ID */
@@ -167,8 +173,7 @@ void rte_fslmc_driver_unregister(struct rte_dpaa2_driver *driver);
 
 /** Helper for DPAA2 device registration from driver (eth, crypto) instance */
 #define RTE_PMD_REGISTER_DPAA2(nm, dpaa2_drv) \
-RTE_INIT(dpaa2initfn_ ##nm); \
-static void dpaa2initfn_ ##nm(void) \
+RTE_INIT(dpaa2initfn_ ##nm) \
 {\
 	(dpaa2_drv).driver.name = RTE_STR(nm);\
 	rte_fslmc_driver_register(&dpaa2_drv); \
@@ -197,8 +202,7 @@ uint32_t rte_fslmc_get_device_count(enum rte_dpaa2_dev_type device_type);
 
 /** Helper for DPAA2 object registration */
 #define RTE_PMD_REGISTER_DPAA2_OBJECT(nm, dpaa2_obj) \
-RTE_INIT(dpaa2objinitfn_ ##nm); \
-static void dpaa2objinitfn_ ##nm(void) \
+RTE_INIT(dpaa2objinitfn_ ##nm) \
 {\
 	(dpaa2_obj).name = RTE_STR(nm);\
 	rte_fslmc_object_register(&dpaa2_obj); \
diff --git a/drivers/bus/ifpga/Makefile b/drivers/bus/ifpga/Makefile
new file mode 100644
index 00000000..3ff3bdb8
--- /dev/null
+++ b/drivers/bus/ifpga/Makefile
@@ -0,0 +1,32 @@
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright(c) 2018 Intel Corporation
+
+include $(RTE_SDK)/mk/rte.vars.mk
+
+#
+# library name
+#
+LIB = librte_bus_ifpga.a
+
+CFLAGS += -DALLOW_EXPERIMENTAL_API
+CFLAGS += -O3
+CFLAGS += $(WERROR_FLAGS)
+LDLIBS += -lrte_eal
+LDLIBS += -lrte_rawdev
+LDLIBS += -lrte_kvargs
+
+# versioning export map
+EXPORT_MAP := rte_bus_ifpga_version.map
+
+# library version
+LIBABIVER := 1
+
+SRCS-$(CONFIG_RTE_LIBRTE_IFPGA_BUS) += ifpga_bus.c
+SRCS-$(CONFIG_RTE_LIBRTE_IFPGA_BUS) += ifpga_common.c
+
+#
+# Export include files
+#
+SYMLINK-$(CONFIG_RTE_LIBRTE_IFPGA_BUS)-include += rte_bus_ifpga.h
+
+include $(RTE_SDK)/mk/rte.lib.mk
diff --git a/drivers/bus/ifpga/ifpga_bus.c b/drivers/bus/ifpga/ifpga_bus.c
new file mode 100644
index 00000000..b324872e
--- /dev/null
+++ b/drivers/bus/ifpga/ifpga_bus.c
@@ -0,0 +1,467 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2010-2018 Intel Corporation
+ */
+
+#include <string.h>
+#include <inttypes.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <sys/queue.h>
+#include <sys/mman.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <fcntl.h>
+
+#include <rte_errno.h>
+#include <rte_bus.h>
+#include <rte_per_lcore.h>
+#include <rte_memory.h>
+#include <rte_memzone.h>
+#include <rte_eal.h>
+#include <rte_common.h>
+#include <rte_devargs.h>
+#include <rte_kvargs.h>
+#include <rte_alarm.h>
+#include <rte_string_fns.h>
+
+#include "rte_rawdev.h"
+#include "rte_rawdev_pmd.h"
+#include "rte_bus_ifpga.h"
+#include "ifpga_logs.h"
+#include "ifpga_common.h"
+
+int ifpga_bus_logtype;
+
+/* Forward declaration to access Intel FPGA bus
+ * on which iFPGA devices are connected
+ */
+static struct rte_bus rte_ifpga_bus;
+
+static struct ifpga_afu_dev_list ifpga_afu_dev_list =
+	TAILQ_HEAD_INITIALIZER(ifpga_afu_dev_list);
+static struct ifpga_afu_drv_list ifpga_afu_drv_list =
+	TAILQ_HEAD_INITIALIZER(ifpga_afu_drv_list);
+
+
+/* register a ifpga bus based driver */
+void rte_ifpga_driver_register(struct rte_afu_driver *driver)
+{
+	RTE_VERIFY(driver);
+
+	TAILQ_INSERT_TAIL(&ifpga_afu_drv_list, driver, next);
+}
+
+/* un-register a fpga bus based driver */
+void rte_ifpga_driver_unregister(struct rte_afu_driver *driver)
+{
+	TAILQ_REMOVE(&ifpga_afu_drv_list, driver, next);
+}
+
+static struct rte_afu_device *
+ifpga_find_afu_dev(const struct rte_rawdev *rdev,
+	const struct rte_afu_id *afu_id)
+{
+	struct rte_afu_device *afu_dev = NULL;
+
+	TAILQ_FOREACH(afu_dev, &ifpga_afu_dev_list, next) {
+		if (afu_dev &&
+			afu_dev->rawdev == rdev &&
+			!ifpga_afu_id_cmp(&afu_dev->id, afu_id))
+			return afu_dev;
+	}
+	return NULL;
+}
+
+static const char * const valid_args[] = {
+#define IFPGA_ARG_NAME         "ifpga"
+	IFPGA_ARG_NAME,
+#define IFPGA_ARG_PORT         "port"
+	IFPGA_ARG_PORT,
+#define IFPGA_AFU_BTS          "afu_bts"
+	IFPGA_AFU_BTS,
+	NULL
+};
+
+/*
+ * Scan the content of the FPGA bus, and the devices in the devices
+ * list
+ */
+static struct rte_afu_device *
+ifpga_scan_one(struct rte_rawdev *rawdev,
+		struct rte_devargs *devargs)
+{
+	struct rte_kvargs *kvlist = NULL;
+	struct rte_afu_device *afu_dev = NULL;
+	struct rte_afu_pr_conf afu_pr_conf;
+	int ret = 0;
+	char *path = NULL;
+
+	memset(&afu_pr_conf, 0, sizeof(struct rte_afu_pr_conf));
+
+	kvlist = rte_kvargs_parse(devargs->args, valid_args);
+	if (!kvlist) {
+		IFPGA_BUS_ERR("error when parsing param");
+		goto end;
+	}
+
+	if (rte_kvargs_count(kvlist, IFPGA_ARG_PORT) == 1) {
+		if (rte_kvargs_process(kvlist, IFPGA_ARG_PORT,
+		&rte_ifpga_get_integer32_arg, &afu_pr_conf.afu_id.port) < 0) {
+			IFPGA_BUS_ERR("error to parse %s",
+				     IFPGA_ARG_PORT);
+			goto end;
+		}
+	} else {
+		IFPGA_BUS_ERR("arg %s is mandatory for ifpga bus",
+			  IFPGA_ARG_PORT);
+		goto end;
+	}
+
+	if (rte_kvargs_count(kvlist, IFPGA_AFU_BTS) == 1) {
+		if (rte_kvargs_process(kvlist, IFPGA_AFU_BTS,
+				       &rte_ifpga_get_string_arg, &path) < 0) {
+			IFPGA_BUS_ERR("Failed to parse %s",
+				     IFPGA_AFU_BTS);
+			goto end;
+		}
+	} else {
+		IFPGA_BUS_ERR("arg %s is mandatory for ifpga bus",
+			  IFPGA_AFU_BTS);
+		goto end;
+	}
+
+	afu_pr_conf.afu_id.uuid.uuid_low = 0;
+	afu_pr_conf.afu_id.uuid.uuid_high = 0;
+	afu_pr_conf.pr_enable = path?1:0;
+
+	if (ifpga_find_afu_dev(rawdev, &afu_pr_conf.afu_id))
+		goto end;
+
+	afu_dev = calloc(1, sizeof(*afu_dev));
+	if (!afu_dev)
+		goto end;
+
+	afu_dev->device.devargs = devargs;
+	afu_dev->device.numa_node = SOCKET_ID_ANY;
+	afu_dev->device.name = devargs->name;
+	afu_dev->rawdev = rawdev;
+	afu_dev->id.uuid.uuid_low  = 0;
+	afu_dev->id.uuid.uuid_high = 0;
+	afu_dev->id.port      = afu_pr_conf.afu_id.port;
+
+	if (rawdev->dev_ops && rawdev->dev_ops->dev_info_get)
+		rawdev->dev_ops->dev_info_get(rawdev, afu_dev);
+
+	if (rawdev->dev_ops &&
+		rawdev->dev_ops->dev_start &&
+		rawdev->dev_ops->dev_start(rawdev))
+		goto end;
+
+	strlcpy(afu_pr_conf.bs_path, path, sizeof(afu_pr_conf.bs_path));
+	if (rawdev->dev_ops &&
+		rawdev->dev_ops->firmware_load &&
+		rawdev->dev_ops->firmware_load(rawdev,
+				&afu_pr_conf)){
+		IFPGA_BUS_ERR("firmware load error %d\n", ret);
+		goto end;
+	}
+	afu_dev->id.uuid.uuid_low  = afu_pr_conf.afu_id.uuid.uuid_low;
+	afu_dev->id.uuid.uuid_high = afu_pr_conf.afu_id.uuid.uuid_high;
+
+	rte_kvargs_free(kvlist);
+	free(path);
+	return afu_dev;
+
+end:
+	if (kvlist)
+		rte_kvargs_free(kvlist);
+	if (path)
+		free(path);
+	if (afu_dev)
+		free(afu_dev);
+
+	return NULL;
+}
+
+/*
+ * Scan the content of the FPGA bus, and the devices in the devices
+ * list
+ */
+static int
+ifpga_scan(void)
+{
+	struct rte_devargs *devargs;
+	struct rte_kvargs *kvlist = NULL;
+	struct rte_rawdev *rawdev = NULL;
+	char *name = NULL;
+	char name1[RTE_RAWDEV_NAME_MAX_LEN];
+	struct rte_afu_device *afu_dev = NULL;
+
+	/* for FPGA devices we scan the devargs_list populated via cmdline */
+	RTE_EAL_DEVARGS_FOREACH(IFPGA_ARG_NAME, devargs) {
+		if (devargs->bus != &rte_ifpga_bus)
+			continue;
+
+		kvlist = rte_kvargs_parse(devargs->args, valid_args);
+		if (!kvlist) {
+			IFPGA_BUS_ERR("error when parsing param");
+			goto end;
+		}
+
+		if (rte_kvargs_count(kvlist, IFPGA_ARG_NAME) == 1) {
+			if (rte_kvargs_process(kvlist, IFPGA_ARG_NAME,
+				       &rte_ifpga_get_string_arg, &name) < 0) {
+				IFPGA_BUS_ERR("error to parse %s",
+				     IFPGA_ARG_NAME);
+				goto end;
+			}
+		} else {
+			IFPGA_BUS_ERR("arg %s is mandatory for ifpga bus",
+			  IFPGA_ARG_NAME);
+			goto end;
+		}
+
+		memset(name1, 0, sizeof(name1));
+		snprintf(name1, RTE_RAWDEV_NAME_MAX_LEN, "IFPGA:%s", name);
+
+		rawdev = rte_rawdev_pmd_get_named_dev(name1);
+		if (!rawdev)
+			goto end;
+
+		afu_dev = ifpga_scan_one(rawdev, devargs);
+		if (afu_dev != NULL)
+			TAILQ_INSERT_TAIL(&ifpga_afu_dev_list, afu_dev, next);
+	}
+
+end:
+	if (kvlist)
+		rte_kvargs_free(kvlist);
+	if (name)
+		free(name);
+
+	return 0;
+}
+
+/*
+ * Match the AFU Driver and AFU Device using the ID Table
+ */
+static int
+rte_afu_match(const struct rte_afu_driver *afu_drv,
+	      const struct rte_afu_device *afu_dev)
+{
+	const struct rte_afu_uuid *id_table;
+
+	for (id_table = afu_drv->id_table;
+		((id_table->uuid_low != 0) && (id_table->uuid_high != 0));
+	     id_table++) {
+		/* check if device's identifiers match the driver's ones */
+		if ((id_table->uuid_low != afu_dev->id.uuid.uuid_low) ||
+				id_table->uuid_high !=
+				 afu_dev->id.uuid.uuid_high)
+			continue;
+
+		return 1;
+	}
+
+	return 0;
+}
+
+static int
+ifpga_probe_one_driver(struct rte_afu_driver *drv,
+			struct rte_afu_device *afu_dev)
+{
+	int ret;
+
+	if (!rte_afu_match(drv, afu_dev))
+		/* Match of device and driver failed */
+		return 1;
+
+	/* reference driver structure */
+	afu_dev->driver = drv;
+	afu_dev->device.driver = &drv->driver;
+
+	/* call the driver probe() function */
+	ret = drv->probe(afu_dev);
+	if (ret) {
+		afu_dev->driver = NULL;
+		afu_dev->device.driver = NULL;
+	}
+
+	return ret;
+}
+
+static int
+ifpga_probe_all_drivers(struct rte_afu_device *afu_dev)
+{
+	struct rte_afu_driver *drv = NULL;
+	int ret = 0;
+
+	if (afu_dev == NULL)
+		return -1;
+
+	/* Check if a driver is already loaded */
+	if (afu_dev->driver != NULL)
+		return 0;
+
+	TAILQ_FOREACH(drv, &ifpga_afu_drv_list, next) {
+		if (ifpga_probe_one_driver(drv, afu_dev)) {
+			ret = -1;
+			break;
+		}
+	}
+	return ret;
+}
+
+/*
+ * Scan the content of the Intel FPGA bus, and call the probe() function for
+ * all registered drivers that have a matching entry in its id_table
+ * for discovered devices.
+ */
+static int
+ifpga_probe(void)
+{
+	struct rte_afu_device *afu_dev = NULL;
+	int ret = 0;
+
+	TAILQ_FOREACH(afu_dev, &ifpga_afu_dev_list, next) {
+		if (afu_dev->device.driver)
+			continue;
+
+		ret = ifpga_probe_all_drivers(afu_dev);
+		if (ret < 0)
+			IFPGA_BUS_ERR("failed to initialize %s device\n",
+				rte_ifpga_device_name(afu_dev));
+		}
+
+	return ret;
+}
+
+static int
+ifpga_plug(struct rte_device *dev)
+{
+	return ifpga_probe_all_drivers(RTE_DEV_TO_AFU(dev));
+}
+
+static int
+ifpga_remove_driver(struct rte_afu_device *afu_dev)
+{
+	const char *name;
+	const struct rte_afu_driver *driver;
+
+	name = rte_ifpga_device_name(afu_dev);
+	if (!afu_dev->device.driver) {
+		IFPGA_BUS_DEBUG("no driver attach to device %s\n", name);
+		return 1;
+	}
+
+	driver = RTE_DRV_TO_AFU_CONST(afu_dev->device.driver);
+	return driver->remove(afu_dev);
+}
+
+static int
+ifpga_unplug(struct rte_device *dev)
+{
+	struct rte_afu_device *afu_dev = NULL;
+	struct rte_devargs *devargs = NULL;
+	int ret;
+
+	if (dev == NULL)
+		return -EINVAL;
+
+	afu_dev = RTE_DEV_TO_AFU(dev);
+	if (!afu_dev)
+		return -ENOENT;
+
+	devargs = dev->devargs;
+
+	ret = ifpga_remove_driver(afu_dev);
+	if (ret)
+		return ret;
+
+	TAILQ_REMOVE(&ifpga_afu_dev_list, afu_dev, next);
+
+	rte_devargs_remove(devargs->bus->name, devargs->name);
+	free(afu_dev);
+	return 0;
+
+}
+
+static struct rte_device *
+ifpga_find_device(const struct rte_device *start,
+	rte_dev_cmp_t cmp, const void *data)
+{
+	struct rte_afu_device *afu_dev;
+
+	TAILQ_FOREACH(afu_dev, &ifpga_afu_dev_list, next) {
+		if (start && &afu_dev->device == start) {
+			start = NULL;
+			continue;
+		}
+		if (cmp(&afu_dev->device, data) == 0)
+			return &afu_dev->device;
+	}
+
+	return NULL;
+}
+static int
+ifpga_parse(const char *name, void *addr)
+{
+	int *out = addr;
+	struct rte_rawdev *rawdev = NULL;
+	char rawdev_name[RTE_RAWDEV_NAME_MAX_LEN];
+	char *c1 = NULL;
+	char *c2 = NULL;
+	int port = IFPGA_BUS_DEV_PORT_MAX;
+	char str_port[8];
+	int str_port_len = 0;
+	int ret;
+
+	memset(str_port, 0, 8);
+	c1 = strchr(name, '|');
+	if (c1 != NULL) {
+		str_port_len = c1 - name;
+		c2 = c1 + 1;
+	}
+
+	if (str_port_len < 8 &&
+		str_port_len > 0) {
+		memcpy(str_port, name, str_port_len);
+		ret = sscanf(str_port, "%d", &port);
+		if (ret == -1)
+			return 0;
+	}
+
+	memset(rawdev_name, 0, sizeof(rawdev_name));
+	snprintf(rawdev_name, RTE_RAWDEV_NAME_MAX_LEN, "IFPGA:%s", c2);
+	rawdev = rte_rawdev_pmd_get_named_dev(rawdev_name);
+
+	if ((port < IFPGA_BUS_DEV_PORT_MAX) &&
+		rawdev &&
+		(addr != NULL))
+		*out = port;
+
+	if ((port < IFPGA_BUS_DEV_PORT_MAX) &&
+		rawdev)
+		return 0;
+	else
+		return 1;
+}
+
+static struct rte_bus rte_ifpga_bus = {
+	.scan        = ifpga_scan,
+	.probe       = ifpga_probe,
+	.find_device = ifpga_find_device,
+	.plug        = ifpga_plug,
+	.unplug      = ifpga_unplug,
+	.parse       = ifpga_parse,
+};
+
+RTE_REGISTER_BUS(IFPGA_BUS_NAME, rte_ifpga_bus);
+
+RTE_INIT(ifpga_init_log)
+{
+	ifpga_bus_logtype = rte_log_register("bus.ifpga");
+	if (ifpga_bus_logtype >= 0)
+		rte_log_set_level(ifpga_bus_logtype, RTE_LOG_NOTICE);
+}
diff --git a/drivers/bus/ifpga/ifpga_common.c b/drivers/bus/ifpga/ifpga_common.c
new file mode 100644
index 00000000..78e2eaee
--- /dev/null
+++ b/drivers/bus/ifpga/ifpga_common.c
@@ -0,0 +1,88 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2010-2018 Intel Corporation
+ */
+
+#include <string.h>
+#include <inttypes.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <sys/queue.h>
+#include <sys/mman.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <fcntl.h>
+
+#include <rte_errno.h>
+#include <rte_bus.h>
+#include <rte_per_lcore.h>
+#include <rte_memory.h>
+#include <rte_memzone.h>
+#include <rte_eal.h>
+#include <rte_common.h>
+
+#include <rte_devargs.h>
+#include <rte_kvargs.h>
+#include <rte_alarm.h>
+
+#include "rte_bus_ifpga.h"
+#include "ifpga_logs.h"
+#include "ifpga_common.h"
+
+int rte_ifpga_get_string_arg(const char *key __rte_unused,
+	const char *value, void *extra_args)
+{
+	if (!value || !extra_args)
+		return -EINVAL;
+
+	*(char **)extra_args = strdup(value);
+
+	if (!*(char **)extra_args)
+		return -ENOMEM;
+
+	return 0;
+}
+int rte_ifpga_get_integer32_arg(const char *key __rte_unused,
+	const char *value, void *extra_args)
+{
+	if (!value || !extra_args)
+		return -EINVAL;
+
+	*(int *)extra_args = strtoull(value, NULL, 0);
+
+	return 0;
+}
+int ifpga_get_integer64_arg(const char *key __rte_unused,
+	const char *value, void *extra_args)
+{
+	if (!value || !extra_args)
+		return -EINVAL;
+
+	*(uint64_t *)extra_args = strtoull(value, NULL, 0);
+
+	return 0;
+}
+int ifpga_get_unsigned_long(const char *str, int base)
+{
+	unsigned long num;
+	char *end = NULL;
+
+	errno = 0;
+
+	num = strtoul(str, &end, base);
+	if ((str[0] == '\0') || (end == NULL) || (*end != '\0') || (errno != 0))
+		return -1;
+
+	return num;
+}
+
+int ifpga_afu_id_cmp(const struct rte_afu_id *afu_id0,
+	const struct rte_afu_id *afu_id1)
+{
+	if ((afu_id0->uuid.uuid_low == afu_id1->uuid.uuid_low) &&
+		(afu_id0->uuid.uuid_high == afu_id1->uuid.uuid_high) &&
+		(afu_id0->port == afu_id1->port)) {
+		return 0;
+	} else
+		return 1;
+}
diff --git a/drivers/bus/ifpga/ifpga_common.h b/drivers/bus/ifpga/ifpga_common.h
new file mode 100644
index 00000000..f9254b9d
--- /dev/null
+++ b/drivers/bus/ifpga/ifpga_common.h
@@ -0,0 +1,18 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2010-2018 Intel Corporation
+ */
+
+#ifndef _IFPGA_COMMON_H_
+#define _IFPGA_COMMON_H_
+
+int rte_ifpga_get_string_arg(const char *key __rte_unused,
+	const char *value, void *extra_args);
+int rte_ifpga_get_integer32_arg(const char *key __rte_unused,
+	const char *value, void *extra_args);
+int ifpga_get_integer64_arg(const char *key __rte_unused,
+	const char *value, void *extra_args);
+int ifpga_get_unsigned_long(const char *str, int base);
+int ifpga_afu_id_cmp(const struct rte_afu_id *afu_id0,
+	const struct rte_afu_id *afu_id1);
+
+#endif /* _IFPGA_COMMON_H_ */
diff --git a/drivers/bus/ifpga/ifpga_logs.h b/drivers/bus/ifpga/ifpga_logs.h
new file mode 100644
index 00000000..873e0a4f
--- /dev/null
+++ b/drivers/bus/ifpga/ifpga_logs.h
@@ -0,0 +1,31 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2010-2018 Intel Corporation
+ */
+
+#ifndef _IFPGA_LOGS_H_
+#define _IFPGA_LOGS_H_
+
+#include <rte_log.h>
+
+extern int ifpga_bus_logtype;
+
+#define IFPGA_LOG(level, fmt, args...) \
+	rte_log(RTE_LOG_ ## level, ifpga_bus_logtype, "%s(): " fmt "\n", \
+		__func__, ##args)
+
+#define IFPGA_BUS_LOG(level, fmt, args...) \
+	rte_log(RTE_LOG_ ## level, ifpga_bus_logtype, "%s(): " fmt "\n", \
+		__func__, ##args)
+
+#define IFPGA_BUS_FUNC_TRACE() IFPGA_BUS_LOG(DEBUG, ">>")
+
+#define IFPGA_BUS_DEBUG(fmt, args...) \
+	IFPGA_BUS_LOG(DEBUG, fmt, ## args)
+#define IFPGA_BUS_INFO(fmt, args...) \
+	IFPGA_BUS_LOG(INFO, fmt, ## args)
+#define IFPGA_BUS_ERR(fmt, args...) \
+	IFPGA_BUS_LOG(ERR, fmt, ## args)
+#define IFPGA_BUS_WARN(fmt, args...) \
+	IFPGA_BUS_LOG(WARNING, fmt, ## args)
+
+#endif /* _IFPGA_BUS_LOGS_H_ */
diff --git a/drivers/bus/ifpga/meson.build b/drivers/bus/ifpga/meson.build
new file mode 100644
index 00000000..c9b08c86
--- /dev/null
+++ b/drivers/bus/ifpga/meson.build
@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright(c) 2010-2018 Intel Corporation
+
+deps += ['pci', 'kvargs', 'rawdev']
+install_headers('rte_bus_ifpga.h')
+sources = files('ifpga_common.c', 'ifpga_bus.c')
+
+allow_experimental_apis = true
diff --git a/drivers/bus/ifpga/rte_bus_ifpga.h b/drivers/bus/ifpga/rte_bus_ifpga.h
new file mode 100644
index 00000000..51d5ae0d
--- /dev/null
+++ b/drivers/bus/ifpga/rte_bus_ifpga.h
@@ -0,0 +1,149 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2010-2018 Intel Corporation
+ */
+
+#ifndef _RTE_BUS_IFPGA_H_
+#define _RTE_BUS_IFPGA_H_
+
+/**
+ * @file
+ *
+ * RTE Intel FPGA Bus Interface
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <rte_bus.h>
+#include <rte_pci.h>
+
+/** Name of Intel FPGA Bus */
+#define IFPGA_BUS_NAME ifpga
+
+/* Forward declarations */
+struct rte_afu_device;
+struct rte_afu_driver;
+
+/** Double linked list of Intel FPGA AFU device. */
+TAILQ_HEAD(ifpga_afu_dev_list, rte_afu_device);
+/** Double linked list of Intel FPGA AFU device drivers. */
+TAILQ_HEAD(ifpga_afu_drv_list, rte_afu_driver);
+
+#define IFPGA_BUS_BITSTREAM_PATH_MAX_LEN 256
+
+struct rte_afu_uuid {
+	uint64_t uuid_low;
+	uint64_t uuid_high;
+} __attribute__ ((packed));
+
+#define IFPGA_BUS_DEV_PORT_MAX 4
+
+/**
+ * A structure describing an ID for a AFU driver. Each driver provides a
+ * table of these IDs for each device that it supports.
+ */
+struct rte_afu_id {
+	struct rte_afu_uuid uuid;
+	int      port; /**< port number */
+} __attribute__ ((packed));
+
+/**
+ * A structure PR (Partial Reconfiguration) configuration AFU driver.
+ */
+
+struct rte_afu_pr_conf {
+	struct rte_afu_id afu_id;
+	int pr_enable;
+	char bs_path[IFPGA_BUS_BITSTREAM_PATH_MAX_LEN];
+};
+
+#define AFU_PRI_STR_SIZE (PCI_PRI_STR_SIZE + 8)
+
+/**
+ * A structure describing a AFU device.
+ */
+struct rte_afu_device {
+	TAILQ_ENTRY(rte_afu_device) next;       /**< Next in device list. */
+	struct rte_device device;               /**< Inherit core device */
+	struct rte_rawdev *rawdev;    /**< Point Rawdev */
+	struct rte_afu_id id;                   /**< AFU id within FPGA. */
+	uint32_t num_region;   /**< number of regions found */
+	struct rte_mem_resource mem_resource[PCI_MAX_RESOURCE];
+						/**< AFU Memory Resource */
+	struct rte_intr_handle intr_handle;     /**< Interrupt handle */
+	struct rte_afu_driver *driver;          /**< Associated driver */
+	char path[IFPGA_BUS_BITSTREAM_PATH_MAX_LEN];
+} __attribute__ ((packed));
+
+/**
+ * @internal
+ * Helper macro for drivers that need to convert to struct rte_afu_device.
+ */
+#define RTE_DEV_TO_AFU(ptr) \
+	container_of(ptr, struct rte_afu_device, device)
+
+#define RTE_DRV_TO_AFU_CONST(ptr) \
+	container_of(ptr, const struct rte_afu_driver, driver)
+
+/**
+ * Initialization function for the driver called during FPGA BUS probing.
+ */
+typedef int (afu_probe_t)(struct rte_afu_device *);
+
+/**
+ * Uninitialization function for the driver called during hotplugging.
+ */
+typedef int (afu_remove_t)(struct rte_afu_device *);
+
+/**
+ * A structure describing a AFU device.
+ */
+struct rte_afu_driver {
+	TAILQ_ENTRY(rte_afu_driver) next;       /**< Next afu driver. */
+	struct rte_driver driver;               /**< Inherit core driver. */
+	afu_probe_t *probe;                     /**< Device Probe function. */
+	afu_remove_t *remove;                   /**< Device Remove function. */
+	const struct rte_afu_uuid *id_table;    /**< AFU uuid within FPGA. */
+};
+
+static inline const char *
+rte_ifpga_device_name(const struct rte_afu_device *afu)
+{
+	if (afu && afu->device.name)
+		return afu->device.name;
+	return NULL;
+}
+
+/**
+ * Register a ifpga afu device driver.
+ *
+ * @param driver
+ *   A pointer to a rte_afu_driver structure describing the driver
+ *   to be registered.
+ */
+void rte_ifpga_driver_register(struct rte_afu_driver *driver);
+
+/**
+ * Unregister a ifpga afu device driver.
+ *
+ * @param driver
+ *   A pointer to a rte_afu_driver structure describing the driver
+ *   to be unregistered.
+ */
+void rte_ifpga_driver_unregister(struct rte_afu_driver *driver);
+
+#define RTE_PMD_REGISTER_AFU(nm, afudrv)\
+static const char *afudrvinit_ ## nm ## _alias;\
+RTE_INIT(afudrvinitfn_ ##afudrv)\
+{\
+	(afudrv).driver.name = RTE_STR(nm);\
+	(afudrv).driver.alias = afudrvinit_ ## nm ## _alias;\
+	rte_ifpga_driver_register(&afudrv);\
+} \
+RTE_PMD_EXPORT_NAME(nm, __COUNTER__)
+
+#define RTE_PMD_REGISTER_AFU_ALIAS(nm, alias)\
+static const char *afudrvinit_ ## nm ## _alias = RTE_STR(alias)
+
+#endif /* _RTE_BUS_IFPGA_H_ */
diff --git a/drivers/bus/ifpga/rte_bus_ifpga_version.map b/drivers/bus/ifpga/rte_bus_ifpga_version.map
new file mode 100644
index 00000000..a0279797
--- /dev/null
+++ b/drivers/bus/ifpga/rte_bus_ifpga_version.map
@@ -0,0 +1,10 @@
+DPDK_18.05 {
+	global:
+
+	rte_ifpga_get_integer32_arg;
+	rte_ifpga_get_string_arg;
+	rte_ifpga_driver_register;
+	rte_ifpga_driver_unregister;
+
+	local: *;
+};
diff --git a/drivers/bus/meson.build b/drivers/bus/meson.build
index c6af500e..80de2d91 100644
--- a/drivers/bus/meson.build
+++ b/drivers/bus/meson.build
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: BSD-3-Clause
 # Copyright(c) 2017 Intel Corporation
 
-drivers = ['pci', 'vdev']
+drivers = ['dpaa', 'fslmc', 'ifpga', 'pci', 'vdev', 'vmbus']
 std_deps = ['eal']
 config_flag_fmt = 'RTE_LIBRTE_@0@_BUS'
 driver_name_fmt = 'rte_bus_@0@'
diff --git a/drivers/bus/pci/Makefile b/drivers/bus/pci/Makefile
index f3df1c4c..cf373068 100644
--- a/drivers/bus/pci/Makefile
+++ b/drivers/bus/pci/Makefile
@@ -1,33 +1,5 @@
-#   BSD LICENSE
-#
-#   Copyright(c) 2017 6WIND S.A.
-#   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 6WIND 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.
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright(c) 2017 6WIND S.A.
 
 include $(RTE_SDK)/mk/rte.vars.mk
 
@@ -37,6 +9,7 @@ EXPORT_MAP := rte_bus_pci_version.map
 
 CFLAGS := -I$(SRCDIR) $(CFLAGS)
 CFLAGS += -O3 $(WERROR_FLAGS)
+CFLAGS += -DALLOW_EXPERIMENTAL_API
 
 ifneq ($(CONFIG_RTE_EXEC_ENV_LINUXAPP),)
 SYSTEM := linux
@@ -49,6 +22,9 @@ CFLAGS += -I$(RTE_SDK)/drivers/bus/pci/$(SYSTEM)
 CFLAGS += -I$(RTE_SDK)/lib/librte_eal/common
 CFLAGS += -I$(RTE_SDK)/lib/librte_eal/$(SYSTEM)app/eal
 
+# memseg walk is not part of stable API yet
+CFLAGS += -DALLOW_EXPERIMENTAL_API
+
 LDLIBS += -lrte_eal -lrte_mbuf -lrte_mempool -lrte_ring
 LDLIBS += -lrte_ethdev -lrte_pci
 
diff --git a/drivers/bus/pci/bsd/Makefile b/drivers/bus/pci/bsd/Makefile
index 4450913e..c1b54c05 100644
--- a/drivers/bus/pci/bsd/Makefile
+++ b/drivers/bus/pci/bsd/Makefile
@@ -1,32 +1,4 @@
-#   BSD LICENSE
-#
-#   Copyright(c) 2017 6WIND S.A.
-#   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 6WIND 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.
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright(c) 2017 6WIND S.A.
 
 SRCS += pci.c
diff --git a/drivers/bus/pci/linux/Makefile b/drivers/bus/pci/linux/Makefile
index 77c5f970..96ea1d54 100644
--- a/drivers/bus/pci/linux/Makefile
+++ b/drivers/bus/pci/linux/Makefile
@@ -1,33 +1,5 @@
-#   BSD LICENSE
-#
-#   Copyright(c) 2017 6WIND S.A.
-#   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 6WIND 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.
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright(c) 2017 6WIND S.A.
 
 SRCS += pci.c
 SRCS += pci_uio.c
diff --git a/drivers/bus/pci/linux/pci.c b/drivers/bus/pci/linux/pci.c
index abde6411..04648ac9 100644
--- a/drivers/bus/pci/linux/pci.c
+++ b/drivers/bus/pci/linux/pci.c
@@ -15,7 +15,6 @@
 #include <rte_memcpy.h>
 #include <rte_vfio.h>
 
-#include "eal_private.h"
 #include "eal_filesystem.h"
 
 #include "private.h"
@@ -33,7 +32,8 @@
 extern struct rte_pci_bus rte_pci_bus;
 
 static int
-pci_get_kernel_driver_by_path(const char *filename, char *dri_name)
+pci_get_kernel_driver_by_path(const char *filename, char *dri_name,
+			      size_t len)
 {
 	int count;
 	char path[PATH_MAX];
@@ -54,7 +54,7 @@ pci_get_kernel_driver_by_path(const char *filename, char *dri_name)
 
 	name = strrchr(path, '/');
 	if (name) {
-		strncpy(dri_name, name + 1, strlen(name + 1) + 1);
+		strlcpy(dri_name, name + 1, len);
 		return 0;
 	}
 
@@ -116,24 +116,28 @@ rte_pci_unmap_device(struct rte_pci_device *dev)
 	}
 }
 
-void *
-pci_find_max_end_va(void)
+static int
+find_max_end_va(const struct rte_memseg_list *msl, void *arg)
 {
-	const struct rte_memseg *seg = rte_eal_get_physmem_layout();
-	const struct rte_memseg *last = seg;
-	unsigned i = 0;
+	size_t sz = msl->memseg_arr.len * msl->page_sz;
+	void *end_va = RTE_PTR_ADD(msl->base_va, sz);
+	void **max_va = arg;
 
-	for (i = 0; i < RTE_MAX_MEMSEG; i++, seg++) {
-		if (seg->addr == NULL)
-			break;
+	if (*max_va < end_va)
+		*max_va = end_va;
+	return 0;
+}
 
-		if (seg->addr > last->addr)
-			last = seg;
+void *
+pci_find_max_end_va(void)
+{
+	void *va = NULL;
 
-	}
-	return RTE_PTR_ADD(last->addr, last->len);
+	rte_memseg_list_walk(find_max_end_va, &va);
+	return va;
 }
 
+
 /* parse one line of the "resource" sysfs file (note that the 'line'
  * string is modified)
  */
@@ -310,7 +314,7 @@ pci_scan_one(const char *dirname, const struct rte_pci_addr *addr)
 
 	/* parse driver */
 	snprintf(filename, sizeof(filename), "%s/driver", dirname);
-	ret = pci_get_kernel_driver_by_path(filename, driver);
+	ret = pci_get_kernel_driver_by_path(filename, driver, sizeof(driver));
 	if (ret < 0) {
 		RTE_LOG(ERR, EAL, "Fail to get kernel driver\n");
 		free(dev);
diff --git a/drivers/bus/pci/linux/pci_uio.c b/drivers/bus/pci/linux/pci_uio.c
index d423e4bb..a7c14421 100644
--- a/drivers/bus/pci/linux/pci_uio.c
+++ b/drivers/bus/pci/linux/pci_uio.c
@@ -282,22 +282,19 @@ int
 pci_uio_map_resource_by_index(struct rte_pci_device *dev, int res_idx,
 		struct mapped_pci_resource *uio_res, int map_idx)
 {
-	int fd;
+	int fd = -1;
 	char devname[PATH_MAX];
 	void *mapaddr;
 	struct rte_pci_addr *loc;
 	struct pci_map *maps;
+	int wc_activate = 0;
+
+	if (dev->driver != NULL)
+		wc_activate = dev->driver->drv_flags & RTE_PCI_DRV_WC_ACTIVATE;
 
 	loc = &dev->addr;
 	maps = uio_res->maps;
 
-	/* update devname for mmap  */
-	snprintf(devname, sizeof(devname),
-			"%s/" PCI_PRI_FMT "/resource%d",
-			rte_pci_get_sysfs_path(),
-			loc->domain, loc->bus, loc->devid,
-			loc->function, res_idx);
-
 	/* allocate memory to keep path */
 	maps[map_idx].path = rte_malloc(NULL, strlen(devname) + 1, 0);
 	if (maps[map_idx].path == NULL) {
@@ -309,11 +306,37 @@ pci_uio_map_resource_by_index(struct rte_pci_device *dev, int res_idx,
 	/*
 	 * open resource file, to mmap it
 	 */
-	fd = open(devname, O_RDWR);
-	if (fd < 0) {
-		RTE_LOG(ERR, EAL, "Cannot open %s: %s\n",
+	if (wc_activate) {
+		/* update devname for mmap  */
+		snprintf(devname, sizeof(devname),
+			"%s/" PCI_PRI_FMT "/resource%d_wc",
+			rte_pci_get_sysfs_path(),
+			loc->domain, loc->bus, loc->devid,
+			loc->function, res_idx);
+
+		if (access(devname, R_OK|W_OK) != -1) {
+			fd = open(devname, O_RDWR);
+			if (fd < 0)
+				RTE_LOG(INFO, EAL, "%s cannot be mapped. "
+					"Fall-back to non prefetchable mode.\n",
+					devname);
+		}
+	}
+
+	if (!wc_activate || fd < 0) {
+		snprintf(devname, sizeof(devname),
+			"%s/" PCI_PRI_FMT "/resource%d",
+			rte_pci_get_sysfs_path(),
+			loc->domain, loc->bus, loc->devid,
+			loc->function, res_idx);
+
+		/* then try to map resource file */
+		fd = open(devname, O_RDWR);
+		if (fd < 0) {
+			RTE_LOG(ERR, EAL, "Cannot open %s: %s\n",
 				devname, strerror(errno));
-		goto error;
+			goto error;
+		}
 	}
 
 	/* try mapping somewhere close to the end of hugepages */
diff --git a/drivers/bus/pci/linux/pci_vfio.c b/drivers/bus/pci/linux/pci_vfio.c
index aeeaa9ed..686386d6 100644
--- a/drivers/bus/pci/linux/pci_vfio.c
+++ b/drivers/bus/pci/linux/pci_vfio.c
@@ -584,6 +584,9 @@ pci_vfio_map_resource_secondary(struct rte_pci_device *dev)
 		dev->mem_resource[i].addr = maps[i].addr;
 	}
 
+	/* we need save vfio_dev_fd, so it can be used during release */
+	dev->intr_handle.vfio_dev_fd = vfio_dev_fd;
+
 	return 0;
 err_vfio_dev_fd:
 	close(vfio_dev_fd);
@@ -603,22 +606,58 @@ pci_vfio_map_resource(struct rte_pci_device *dev)
 		return pci_vfio_map_resource_secondary(dev);
 }
 
-int
-pci_vfio_unmap_resource(struct rte_pci_device *dev)
+static struct mapped_pci_resource *
+find_and_unmap_vfio_resource(struct mapped_pci_res_list *vfio_res_list,
+			struct rte_pci_device *dev,
+			const char *pci_addr)
+{
+	struct mapped_pci_resource *vfio_res = NULL;
+	struct pci_map *maps;
+	int i;
+
+	/* Get vfio_res */
+	TAILQ_FOREACH(vfio_res, vfio_res_list, next) {
+		if (rte_pci_addr_cmp(&vfio_res->pci_addr, &dev->addr))
+			continue;
+		break;
+	}
+
+	if  (vfio_res == NULL)
+		return vfio_res;
+
+	RTE_LOG(INFO, EAL, "Releasing pci mapped resource for %s\n",
+		pci_addr);
+
+	maps = vfio_res->maps;
+	for (i = 0; i < (int) vfio_res->nb_maps; i++) {
+
+		/*
+		 * We do not need to be aware of MSI-X table BAR mappings as
+		 * when mapping. Just using current maps array is enough
+		 */
+		if (maps[i].addr) {
+			RTE_LOG(INFO, EAL, "Calling pci_unmap_resource for %s at %p\n",
+				pci_addr, maps[i].addr);
+			pci_unmap_resource(maps[i].addr, maps[i].size);
+		}
+	}
+
+	return vfio_res;
+}
+
+static int
+pci_vfio_unmap_resource_primary(struct rte_pci_device *dev)
 {
 	char pci_addr[PATH_MAX] = {0};
 	struct rte_pci_addr *loc = &dev->addr;
-	int i, ret;
 	struct mapped_pci_resource *vfio_res = NULL;
 	struct mapped_pci_res_list *vfio_res_list;
-
-	struct pci_map *maps;
+	int ret;
 
 	/* store PCI address string */
 	snprintf(pci_addr, sizeof(pci_addr), PCI_PRI_FMT,
 			loc->domain, loc->bus, loc->devid, loc->function);
 
-
 	if (close(dev->intr_handle.fd) < 0) {
 		RTE_LOG(INFO, EAL, "Error when closing eventfd file descriptor for %s\n",
 			pci_addr);
@@ -639,13 +678,10 @@ pci_vfio_unmap_resource(struct rte_pci_device *dev)
 		return ret;
 	}
 
-	vfio_res_list = RTE_TAILQ_CAST(rte_vfio_tailq.head, mapped_pci_res_list);
-	/* Get vfio_res */
-	TAILQ_FOREACH(vfio_res, vfio_res_list, next) {
-		if (memcmp(&vfio_res->pci_addr, &dev->addr, sizeof(dev->addr)))
-			continue;
-		break;
-	}
+	vfio_res_list =
+		RTE_TAILQ_CAST(rte_vfio_tailq.head, mapped_pci_res_list);
+	vfio_res = find_and_unmap_vfio_resource(vfio_res_list, dev, pci_addr);
+
 	/* if we haven't found our tailq entry, something's wrong */
 	if (vfio_res == NULL) {
 		RTE_LOG(ERR, EAL, "  %s cannot find TAILQ entry for PCI device!\n",
@@ -653,30 +689,56 @@ pci_vfio_unmap_resource(struct rte_pci_device *dev)
 		return -1;
 	}
 
-	/* unmap BARs */
-	maps = vfio_res->maps;
+	TAILQ_REMOVE(vfio_res_list, vfio_res, next);
 
-	RTE_LOG(INFO, EAL, "Releasing pci mapped resource for %s\n",
-		pci_addr);
-	for (i = 0; i < (int) vfio_res->nb_maps; i++) {
+	return 0;
+}
 
-		/*
-		 * We do not need to be aware of MSI-X table BAR mappings as
-		 * when mapping. Just using current maps array is enough
-		 */
-		if (maps[i].addr) {
-			RTE_LOG(INFO, EAL, "Calling pci_unmap_resource for %s at %p\n",
-				pci_addr, maps[i].addr);
-			pci_unmap_resource(maps[i].addr, maps[i].size);
-		}
+static int
+pci_vfio_unmap_resource_secondary(struct rte_pci_device *dev)
+{
+	char pci_addr[PATH_MAX] = {0};
+	struct rte_pci_addr *loc = &dev->addr;
+	struct mapped_pci_resource *vfio_res = NULL;
+	struct mapped_pci_res_list *vfio_res_list;
+	int ret;
+
+	/* store PCI address string */
+	snprintf(pci_addr, sizeof(pci_addr), PCI_PRI_FMT,
+			loc->domain, loc->bus, loc->devid, loc->function);
+
+	ret = rte_vfio_release_device(rte_pci_get_sysfs_path(), pci_addr,
+				  dev->intr_handle.vfio_dev_fd);
+	if (ret < 0) {
+		RTE_LOG(ERR, EAL,
+			"%s(): cannot release device\n", __func__);
+		return ret;
 	}
 
-	TAILQ_REMOVE(vfio_res_list, vfio_res, next);
+	vfio_res_list =
+		RTE_TAILQ_CAST(rte_vfio_tailq.head, mapped_pci_res_list);
+	vfio_res = find_and_unmap_vfio_resource(vfio_res_list, dev, pci_addr);
+
+	/* if we haven't found our tailq entry, something's wrong */
+	if (vfio_res == NULL) {
+		RTE_LOG(ERR, EAL, "  %s cannot find TAILQ entry for PCI device!\n",
+				pci_addr);
+		return -1;
+	}
 
 	return 0;
 }
 
 int
+pci_vfio_unmap_resource(struct rte_pci_device *dev)
+{
+	if (rte_eal_process_type() == RTE_PROC_PRIMARY)
+		return pci_vfio_unmap_resource_primary(dev);
+	else
+		return pci_vfio_unmap_resource_secondary(dev);
+}
+
+int
 pci_vfio_ioport_map(struct rte_pci_device *dev, int bar,
 		    struct rte_pci_ioport *p)
 {
diff --git a/drivers/bus/pci/meson.build b/drivers/bus/pci/meson.build
index 12756a4d..72939e59 100644
--- a/drivers/bus/pci/meson.build
+++ b/drivers/bus/pci/meson.build
@@ -14,3 +14,6 @@ else
 	sources += files('bsd/pci.c')
 	includes += include_directories('bsd')
 endif
+
+# memseg walk is not part of stable API yet
+allow_experimental_apis = true
diff --git a/drivers/bus/pci/pci_common.c b/drivers/bus/pci/pci_common.c
index 2a00f365..7736b3f9 100644
--- a/drivers/bus/pci/pci_common.c
+++ b/drivers/bus/pci/pci_common.c
@@ -26,6 +26,7 @@
 
 #include "private.h"
 
+
 extern struct rte_pci_bus rte_pci_bus;
 
 #define SYSFS_PCI_DEVICES "/sys/bus/pci/devices"
@@ -45,12 +46,8 @@ static struct rte_devargs *pci_devargs_lookup(struct rte_pci_device *dev)
 {
 	struct rte_devargs *devargs;
 	struct rte_pci_addr addr;
-	struct rte_bus *pbus;
 
-	pbus = rte_bus_find_by_name("pci");
-	TAILQ_FOREACH(devargs, &devargs_list, next) {
-		if (devargs->bus != pbus)
-			continue;
+	RTE_EAL_DEVARGS_FOREACH("pci", devargs) {
 		devargs->bus->parse(devargs->name, &addr);
 		if (!rte_pci_addr_cmp(&dev->addr, &addr))
 			return devargs;
@@ -73,7 +70,7 @@ pci_name_set(struct rte_pci_device *dev)
 	 */
 	if (devargs != NULL)
 		/* If an rte_devargs exists, the generic rte_device uses the
-		 * given name as its namea
+		 * given name as its name.
 		 */
 		dev->device.name = dev->device.devargs->name;
 	else
@@ -159,17 +156,24 @@ rte_pci_probe_one_driver(struct rte_pci_driver *dr,
 	RTE_LOG(INFO, EAL, "  probe driver: %x:%x %s\n", dev->id.vendor_id,
 		dev->id.device_id, dr->driver.name);
 
+	/*
+	 * reference driver structure
+	 * This needs to be before rte_pci_map_device(), as it enables to use
+	 * driver flags for adjusting configuration.
+	 */
+	dev->driver = dr;
+	dev->device.driver = &dr->driver;
+
 	if (dr->drv_flags & RTE_PCI_DRV_NEED_MAPPING) {
 		/* map resources for devices that use igb_uio */
 		ret = rte_pci_map_device(dev);
-		if (ret != 0)
+		if (ret != 0) {
+			dev->driver = NULL;
+			dev->device.driver = NULL;
 			return ret;
+		}
 	}
 
-	/* reference driver structure */
-	dev->driver = dr;
-	dev->device.driver = &dr->driver;
-
 	/* call the driver probe() function */
 	ret = dr->probe(dr, dev);
 	if (ret) {
@@ -259,81 +263,6 @@ pci_probe_all_drivers(struct rte_pci_device *dev)
 }
 
 /*
- * Find the pci device specified by pci address, then invoke probe function of
- * the driver of the device.
- */
-int
-rte_pci_probe_one(const struct rte_pci_addr *addr)
-{
-	struct rte_pci_device *dev = NULL;
-
-	int ret = 0;
-
-	if (addr == NULL)
-		return -1;
-
-	/* update current pci device in global list, kernel bindings might have
-	 * changed since last time we looked at it.
-	 */
-	if (pci_update_device(addr) < 0)
-		goto err_return;
-
-	FOREACH_DEVICE_ON_PCIBUS(dev) {
-		if (rte_pci_addr_cmp(&dev->addr, addr))
-			continue;
-
-		ret = pci_probe_all_drivers(dev);
-		if (ret)
-			goto err_return;
-		return 0;
-	}
-	return -1;
-
-err_return:
-	RTE_LOG(WARNING, EAL,
-		"Requested device " PCI_PRI_FMT " cannot be used\n",
-		addr->domain, addr->bus, addr->devid, addr->function);
-	return -1;
-}
-
-/*
- * Detach device specified by its pci address.
- */
-int
-rte_pci_detach(const struct rte_pci_addr *addr)
-{
-	struct rte_pci_device *dev = NULL;
-	int ret = 0;
-
-	if (addr == NULL)
-		return -1;
-
-	FOREACH_DEVICE_ON_PCIBUS(dev) {
-		if (rte_pci_addr_cmp(&dev->addr, addr))
-			continue;
-
-		ret = rte_pci_detach_dev(dev);
-		if (ret < 0)
-			/* negative value is an error */
-			goto err_return;
-		if (ret > 0)
-			/* positive value means driver doesn't support it */
-			continue;
-
-		rte_pci_remove_device(dev);
-		free(dev);
-		return 0;
-	}
-	return -1;
-
-err_return:
-	RTE_LOG(WARNING, EAL, "Requested device " PCI_PRI_FMT
-			" cannot be used\n", dev->addr.domain, dev->addr.bus,
-			dev->addr.devid, dev->addr.function);
-	return -1;
-}
-
-/*
  * Scan the content of the PCI bus, and call the probe() function for
  * all registered drivers that have a matching entry in its id_table
  * for discovered devices.
@@ -449,7 +378,7 @@ rte_pci_insert_device(struct rte_pci_device *exist_pci_dev,
 }
 
 /* Remove a device from PCI bus */
-void
+static void
 rte_pci_remove_device(struct rte_pci_device *pci_dev)
 {
 	TAILQ_REMOVE(&rte_pci_bus.device_list, pci_dev, next);
@@ -459,17 +388,20 @@ static struct rte_device *
 pci_find_device(const struct rte_device *start, rte_dev_cmp_t cmp,
 		const void *data)
 {
-	struct rte_pci_device *dev;
+	const struct rte_pci_device *pstart;
+	struct rte_pci_device *pdev;
 
-	FOREACH_DEVICE_ON_PCIBUS(dev) {
-		if (start && &dev->device == start) {
-			start = NULL; /* starting point found */
-			continue;
-		}
-		if (cmp(&dev->device, data) == 0)
-			return &dev->device;
+	if (start != NULL) {
+		pstart = RTE_DEV_TO_PCI_CONST(start);
+		pdev = TAILQ_NEXT(pstart, next);
+	} else {
+		pdev = TAILQ_FIRST(&rte_pci_bus.device_list);
+	}
+	while (pdev != NULL) {
+		if (cmp(&pdev->device, data) == 0)
+			return &pdev->device;
+		pdev = TAILQ_NEXT(pdev, next);
 	}
-
 	return NULL;
 }
 
diff --git a/drivers/bus/pci/private.h b/drivers/bus/pci/private.h
index 88fa587e..8ddd03e1 100644
--- a/drivers/bus/pci/private.h
+++ b/drivers/bus/pci/private.h
@@ -33,36 +33,6 @@ rte_pci_probe(void);
 int rte_pci_scan(void);
 
 /**
- * Probe the single PCI device.
- *
- * Scan the content of the PCI bus, and find the pci device specified by pci
- * address, then call the probe() function for registered driver that has a
- * matching entry in its id_table for discovered device.
- *
- * @param addr
- *	The PCI Bus-Device-Function address to probe.
- * @return
- *   - 0 on success.
- *   - Negative on error.
- */
-int rte_pci_probe_one(const struct rte_pci_addr *addr);
-
-/**
- * Close the single PCI device.
- *
- * Scan the content of the PCI bus, and find the pci device specified by pci
- * address, then call the remove() function for registered driver that has a
- * matching entry in its id_table for discovered device.
- *
- * @param addr
- *	The PCI Bus-Device-Function address to close.
- * @return
- *   - 0 on success.
- *   - Negative on error.
- */
-int rte_pci_detach(const struct rte_pci_addr *addr);
-
-/**
  * Find the name of a PCI device.
  */
 void
@@ -94,16 +64,6 @@ void rte_pci_insert_device(struct rte_pci_device *exist_pci_dev,
 		struct rte_pci_device *new_pci_dev);
 
 /**
- * Remove a PCI device from the PCI Bus. This sets to NULL the bus references
- * in the PCI device object as well as the generic device object.
- *
- * @param pci_device
- *	PCI device to be removed from PCI Bus
- * @return void
- */
-void rte_pci_remove_device(struct rte_pci_device *pci_device);
-
-/**
  * Update a pci device object by asking the kernel for the latest information.
  *
  * This function is private to EAL.
@@ -117,16 +77,6 @@ void rte_pci_remove_device(struct rte_pci_device *pci_device);
 int pci_update_device(const struct rte_pci_addr *addr);
 
 /**
- * Unbind kernel driver for this device
- *
- * This function is private to EAL.
- *
- * @return
- *   0 on success, negative on error
- */
-int pci_unbind_kernel_driver(struct rte_pci_device *dev);
-
-/**
  * Map the PCI resource of a PCI device in virtual memory
  *
  * This function is private to EAL.
diff --git a/drivers/bus/pci/rte_bus_pci.h b/drivers/bus/pci/rte_bus_pci.h
index 357afb91..0d1955ff 100644
--- a/drivers/bus/pci/rte_bus_pci.h
+++ b/drivers/bus/pci/rte_bus_pci.h
@@ -74,6 +74,9 @@ struct rte_pci_device {
  */
 #define RTE_DEV_TO_PCI(ptr) container_of(ptr, struct rte_pci_device, device)
 
+#define RTE_DEV_TO_PCI_CONST(ptr) \
+	container_of(ptr, const struct rte_pci_device, device)
+
 #define RTE_ETH_DEV_TO_PCI(eth_dev)	RTE_DEV_TO_PCI((eth_dev)->device)
 
 /** Any PCI device identifier (vendor, device, ...) */
@@ -132,6 +135,8 @@ struct rte_pci_bus {
 
 /** Device needs PCI BAR mapping (done with either IGB_UIO or VFIO) */
 #define RTE_PCI_DRV_NEED_MAPPING 0x0001
+/** Device needs PCI BAR mapping with enabled write combining (wc) */
+#define RTE_PCI_DRV_WC_ACTIVATE 0x0002
 /** Device driver supports link state interrupt */
 #define RTE_PCI_DRV_INTR_LSC	0x0008
 /** Device driver supports device removal interrupt */
@@ -186,8 +191,7 @@ void rte_pci_register(struct rte_pci_driver *driver);
 
 /** Helper for PCI device registration from driver (eth, crypto) instance */
 #define RTE_PMD_REGISTER_PCI(nm, pci_drv) \
-RTE_INIT(pciinitfn_ ##nm); \
-static void pciinitfn_ ##nm(void) \
+RTE_INIT(pciinitfn_ ##nm) \
 {\
 	(pci_drv).driver.name = RTE_STR(nm);\
 	rte_pci_register(&pci_drv); \
diff --git a/drivers/bus/vdev/Makefile b/drivers/bus/vdev/Makefile
index 24d424a3..bd0bb895 100644
--- a/drivers/bus/vdev/Makefile
+++ b/drivers/bus/vdev/Makefile
@@ -10,6 +10,7 @@ LIB = librte_bus_vdev.a
 
 CFLAGS += -O3
 CFLAGS += $(WERROR_FLAGS)
+CFLAGS += -DALLOW_EXPERIMENTAL_API
 
 # versioning export map
 EXPORT_MAP := rte_bus_vdev_version.map
diff --git a/drivers/bus/vdev/meson.build b/drivers/bus/vdev/meson.build
index 03cb87eb..2ee648b4 100644
--- a/drivers/bus/vdev/meson.build
+++ b/drivers/bus/vdev/meson.build
@@ -3,3 +3,5 @@
 
 sources = files('vdev.c')
 install_headers('rte_bus_vdev.h')
+
+allow_experimental_apis = true
diff --git a/drivers/bus/vdev/rte_bus_vdev.h b/drivers/bus/vdev/rte_bus_vdev.h
index f9d8a238..9ae3eaae 100644
--- a/drivers/bus/vdev/rte_bus_vdev.h
+++ b/drivers/bus/vdev/rte_bus_vdev.h
@@ -1,33 +1,5 @@
-/*-
- *   BSD LICENSE
- *
- *   Copyright(c) 2016 RehiveTech. 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 RehiveTech 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.
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2016 RehiveTech. All rights reserved.
  */
 
 #ifndef RTE_VDEV_H
@@ -53,6 +25,9 @@ struct rte_vdev_device {
 #define RTE_DEV_TO_VDEV(ptr) \
 	container_of(ptr, struct rte_vdev_device, device)
 
+#define RTE_DEV_TO_VDEV_CONST(ptr) \
+	container_of(ptr, const struct rte_vdev_device, device)
+
 static inline const char *
 rte_vdev_device_name(const struct rte_vdev_device *dev)
 {
@@ -111,9 +86,8 @@ void rte_vdev_register(struct rte_vdev_driver *driver);
 void rte_vdev_unregister(struct rte_vdev_driver *driver);
 
 #define RTE_PMD_REGISTER_VDEV(nm, vdrv)\
-RTE_INIT(vdrvinitfn_ ##vdrv);\
 static const char *vdrvinit_ ## nm ## _alias;\
-static void vdrvinitfn_ ##vdrv(void)\
+RTE_INIT(vdrvinitfn_ ##vdrv)\
 {\
 	(vdrv).driver.name = RTE_STR(nm);\
 	(vdrv).driver.alias = vdrvinit_ ## nm ## _alias;\
diff --git a/drivers/bus/vdev/vdev.c b/drivers/bus/vdev/vdev.c
index e4bc7246..6139dd55 100644
--- a/drivers/bus/vdev/vdev.c
+++ b/drivers/bus/vdev/vdev.c
@@ -1,33 +1,5 @@
-/*-
- *   BSD LICENSE
- *
- *   Copyright(c) 2016 RehiveTech. 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 RehiveTech 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.
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2016 RehiveTech. All rights reserved.
  */
 
 #include <string.h>
@@ -46,11 +18,14 @@
 #include <rte_memory.h>
 #include <rte_tailq.h>
 #include <rte_spinlock.h>
+#include <rte_string_fns.h>
 #include <rte_errno.h>
 
 #include "rte_bus_vdev.h"
 #include "vdev_logs.h"
 
+#define VDEV_MP_KEY	"bus_vdev_mp"
+
 int vdev_logtype_bus;
 
 /* Forward declare to access virtual bus name */
@@ -61,6 +36,10 @@ TAILQ_HEAD(vdev_device_list, rte_vdev_device);
 
 static struct vdev_device_list vdev_device_list =
 	TAILQ_HEAD_INITIALIZER(vdev_device_list);
+/* The lock needs to be recursive because a vdev can manage another vdev. */
+static rte_spinlock_recursive_t vdev_device_list_lock =
+	RTE_SPINLOCK_RECURSIVE_INITIALIZER;
+
 struct vdev_driver_list vdev_driver_list =
 	TAILQ_HEAD_INITIALIZER(vdev_driver_list);
 
@@ -165,7 +144,7 @@ vdev_probe_all_drivers(struct rte_vdev_device *dev)
 
 	name = rte_vdev_device_name(dev);
 
-	VDEV_LOG(DEBUG, "Search driver %s to probe device %s\n", name,
+	VDEV_LOG(DEBUG, "Search driver %s to probe device %s", name,
 		rte_vdev_device_name(dev));
 
 	if (vdev_parse(name, &driver))
@@ -177,6 +156,7 @@ vdev_probe_all_drivers(struct rte_vdev_device *dev)
 	return ret;
 }
 
+/* The caller shall be responsible for thread-safe */
 static struct rte_vdev_device *
 find_vdev(const char *name)
 {
@@ -188,7 +168,7 @@ find_vdev(const char *name)
 	TAILQ_FOREACH(dev, &vdev_device_list, next) {
 		const char *devname = rte_vdev_device_name(dev);
 
-		if (!strncmp(devname, name, strlen(name)))
+		if (!strcmp(devname, name))
 			return dev;
 	}
 
@@ -221,8 +201,8 @@ alloc_devargs(const char *name, const char *args)
 	return devargs;
 }
 
-int
-rte_vdev_init(const char *name, const char *args)
+static int
+insert_vdev(const char *name, const char *args, struct rte_vdev_device **p_dev)
 {
 	struct rte_vdev_device *dev;
 	struct rte_devargs *devargs;
@@ -231,10 +211,6 @@ rte_vdev_init(const char *name, const char *args)
 	if (name == NULL)
 		return -EINVAL;
 
-	dev = find_vdev(name);
-	if (dev)
-		return -EEXIST;
-
 	devargs = alloc_devargs(name, args);
 	if (!devargs)
 		return -ENOMEM;
@@ -249,18 +225,18 @@ rte_vdev_init(const char *name, const char *args)
 	dev->device.numa_node = SOCKET_ID_ANY;
 	dev->device.name = devargs->name;
 
-	ret = vdev_probe_all_drivers(dev);
-	if (ret) {
-		if (ret > 0)
-			VDEV_LOG(ERR, "no driver found for %s\n", name);
+	if (find_vdev(name)) {
+		ret = -EEXIST;
 		goto fail;
 	}
 
-	TAILQ_INSERT_TAIL(&devargs_list, devargs, next);
-
 	TAILQ_INSERT_TAIL(&vdev_device_list, dev, next);
-	return 0;
+	rte_devargs_insert(devargs);
+
+	if (p_dev)
+		*p_dev = dev;
 
+	return 0;
 fail:
 	free(devargs->args);
 	free(devargs);
@@ -268,6 +244,31 @@ fail:
 	return ret;
 }
 
+int
+rte_vdev_init(const char *name, const char *args)
+{
+	struct rte_vdev_device *dev;
+	struct rte_devargs *devargs;
+	int ret;
+
+	rte_spinlock_recursive_lock(&vdev_device_list_lock);
+	ret = insert_vdev(name, args, &dev);
+	if (ret == 0) {
+		ret = vdev_probe_all_drivers(dev);
+		if (ret) {
+			if (ret > 0)
+				VDEV_LOG(ERR, "no driver found for %s", name);
+			/* If fails, remove it from vdev list */
+			devargs = dev->device.devargs;
+			TAILQ_REMOVE(&vdev_device_list, dev, next);
+			rte_devargs_remove(devargs->bus->name, devargs->name);
+			free(dev);
+		}
+	}
+	rte_spinlock_recursive_unlock(&vdev_device_list_lock);
+	return ret;
+}
+
 static int
 vdev_remove_driver(struct rte_vdev_device *dev)
 {
@@ -275,7 +276,7 @@ vdev_remove_driver(struct rte_vdev_device *dev)
 	const struct rte_vdev_driver *driver;
 
 	if (!dev->device.driver) {
-		VDEV_LOG(DEBUG, "no driver attach to device %s\n", name);
+		VDEV_LOG(DEBUG, "no driver attach to device %s", name);
 		return 1;
 	}
 
@@ -294,23 +295,98 @@ rte_vdev_uninit(const char *name)
 	if (name == NULL)
 		return -EINVAL;
 
-	dev = find_vdev(name);
-	if (!dev)
-		return -ENOENT;
+	rte_spinlock_recursive_lock(&vdev_device_list_lock);
 
-	devargs = dev->device.devargs;
+	dev = find_vdev(name);
+	if (!dev) {
+		ret = -ENOENT;
+		goto unlock;
+	}
 
 	ret = vdev_remove_driver(dev);
 	if (ret)
-		return ret;
+		goto unlock;
 
 	TAILQ_REMOVE(&vdev_device_list, dev, next);
+	devargs = dev->device.devargs;
+	rte_devargs_remove(devargs->bus->name, devargs->name);
+	free(dev);
 
-	TAILQ_REMOVE(&devargs_list, devargs, next);
+unlock:
+	rte_spinlock_recursive_unlock(&vdev_device_list_lock);
+	return ret;
+}
+
+struct vdev_param {
+#define VDEV_SCAN_REQ	1
+#define VDEV_SCAN_ONE	2
+#define VDEV_SCAN_REP	3
+	int type;
+	int num;
+	char name[RTE_DEV_NAME_MAX_LEN];
+};
+
+static int vdev_plug(struct rte_device *dev);
+
+/**
+ * This function works as the action for both primary and secondary process
+ * for static vdev discovery when a secondary process is booting.
+ *
+ * step 1, secondary process sends a sync request to ask for vdev in primary;
+ * step 2, primary process receives the request, and send vdevs one by one;
+ * step 3, primary process sends back reply, which indicates how many vdevs
+ * are sent.
+ */
+static int
+vdev_action(const struct rte_mp_msg *mp_msg, const void *peer)
+{
+	struct rte_vdev_device *dev;
+	struct rte_mp_msg mp_resp;
+	struct vdev_param *ou = (struct vdev_param *)&mp_resp.param;
+	const struct vdev_param *in = (const struct vdev_param *)mp_msg->param;
+	const char *devname;
+	int num;
+
+	strlcpy(mp_resp.name, VDEV_MP_KEY, sizeof(mp_resp.name));
+	mp_resp.len_param = sizeof(*ou);
+	mp_resp.num_fds = 0;
+
+	switch (in->type) {
+	case VDEV_SCAN_REQ:
+		ou->type = VDEV_SCAN_ONE;
+		ou->num = 1;
+		num = 0;
+
+		rte_spinlock_recursive_lock(&vdev_device_list_lock);
+		TAILQ_FOREACH(dev, &vdev_device_list, next) {
+			devname = rte_vdev_device_name(dev);
+			if (strlen(devname) == 0) {
+				VDEV_LOG(INFO, "vdev with no name is not sent");
+				continue;
+			}
+			VDEV_LOG(INFO, "send vdev, %s", devname);
+			strlcpy(ou->name, devname, RTE_DEV_NAME_MAX_LEN);
+			if (rte_mp_sendmsg(&mp_resp) < 0)
+				VDEV_LOG(ERR, "send vdev, %s, failed, %s",
+					 devname, strerror(rte_errno));
+			num++;
+		}
+		rte_spinlock_recursive_unlock(&vdev_device_list_lock);
+
+		ou->type = VDEV_SCAN_REP;
+		ou->num = num;
+		if (rte_mp_reply(&mp_resp, peer) < 0)
+			VDEV_LOG(ERR, "Failed to reply a scan request");
+		break;
+	case VDEV_SCAN_ONE:
+		VDEV_LOG(INFO, "receive vdev, %s", in->name);
+		if (insert_vdev(in->name, NULL, NULL) < 0)
+			VDEV_LOG(ERR, "failed to add vdev, %s", in->name);
+		break;
+	default:
+		VDEV_LOG(ERR, "vdev cannot recognize this message");
+	}
 
-	free(devargs->args);
-	free(devargs);
-	free(dev);
 	return 0;
 }
 
@@ -321,13 +397,41 @@ vdev_scan(void)
 	struct rte_devargs *devargs;
 	struct vdev_custom_scan *custom_scan;
 
+	if (rte_mp_action_register(VDEV_MP_KEY, vdev_action) < 0 &&
+	    rte_errno != EEXIST) {
+		VDEV_LOG(ERR, "Failed to add vdev mp action");
+		return -1;
+	}
+
+	if (rte_eal_process_type() == RTE_PROC_SECONDARY) {
+		struct rte_mp_msg mp_req, *mp_rep;
+		struct rte_mp_reply mp_reply;
+		struct timespec ts = {.tv_sec = 5, .tv_nsec = 0};
+		struct vdev_param *req = (struct vdev_param *)mp_req.param;
+		struct vdev_param *resp;
+
+		strlcpy(mp_req.name, VDEV_MP_KEY, sizeof(mp_req.name));
+		mp_req.len_param = sizeof(*req);
+		mp_req.num_fds = 0;
+		req->type = VDEV_SCAN_REQ;
+		if (rte_mp_request_sync(&mp_req, &mp_reply, &ts) == 0 &&
+		    mp_reply.nb_received == 1) {
+			mp_rep = &mp_reply.msgs[0];
+			resp = (struct vdev_param *)mp_rep->param;
+			VDEV_LOG(INFO, "Received %d vdevs", resp->num);
+		} else
+			VDEV_LOG(ERR, "Failed to request vdev from primary");
+
+		/* Fall through to allow private vdevs in secondary process */
+	}
+
 	/* call custom scan callbacks if any */
 	rte_spinlock_lock(&vdev_custom_scan_lock);
 	TAILQ_FOREACH(custom_scan, &vdev_custom_scans, next) {
 		if (custom_scan->callback != NULL)
 			/*
 			 * the callback should update devargs list
-			 * by calling rte_eal_devargs_insert() with
+			 * by calling rte_devargs_insert() with
 			 *     devargs.bus = rte_bus_find_by_name("vdev");
 			 *     devargs.type = RTE_DEVTYPE_VIRTUAL;
 			 *     devargs.policy = RTE_DEV_WHITELISTED;
@@ -337,24 +441,27 @@ vdev_scan(void)
 	rte_spinlock_unlock(&vdev_custom_scan_lock);
 
 	/* for virtual devices we scan the devargs_list populated via cmdline */
-	TAILQ_FOREACH(devargs, &devargs_list, next) {
-
-		if (devargs->bus != &rte_vdev_bus)
-			continue;
-
-		dev = find_vdev(devargs->name);
-		if (dev)
-			continue;
+	RTE_EAL_DEVARGS_FOREACH("vdev", devargs) {
 
 		dev = calloc(1, sizeof(*dev));
 		if (!dev)
 			return -1;
 
+		rte_spinlock_recursive_lock(&vdev_device_list_lock);
+
+		if (find_vdev(devargs->name)) {
+			rte_spinlock_recursive_unlock(&vdev_device_list_lock);
+			free(dev);
+			continue;
+		}
+
 		dev->device.devargs = devargs;
 		dev->device.numa_node = SOCKET_ID_ANY;
 		dev->device.name = devargs->name;
 
 		TAILQ_INSERT_TAIL(&vdev_device_list, dev, next);
+
+		rte_spinlock_recursive_unlock(&vdev_device_list_lock);
 	}
 
 	return 0;
@@ -368,12 +475,16 @@ vdev_probe(void)
 
 	/* call the init function for each virtual device */
 	TAILQ_FOREACH(dev, &vdev_device_list, next) {
+		/* we don't use the vdev lock here, as it's only used in DPDK
+		 * initialization; and we don't want to hold such a lock when
+		 * we call each driver probe.
+		 */
 
 		if (dev->device.driver)
 			continue;
 
 		if (vdev_probe_all_drivers(dev)) {
-			VDEV_LOG(ERR, "failed to initialize %s device\n",
+			VDEV_LOG(ERR, "failed to initialize %s device",
 				rte_vdev_device_name(dev));
 			ret = -1;
 		}
@@ -386,17 +497,24 @@ static struct rte_device *
 vdev_find_device(const struct rte_device *start, rte_dev_cmp_t cmp,
 		 const void *data)
 {
+	const struct rte_vdev_device *vstart;
 	struct rte_vdev_device *dev;
 
-	TAILQ_FOREACH(dev, &vdev_device_list, next) {
-		if (start && &dev->device == start) {
-			start = NULL;
-			continue;
-		}
+	rte_spinlock_recursive_lock(&vdev_device_list_lock);
+	if (start != NULL) {
+		vstart = RTE_DEV_TO_VDEV_CONST(start);
+		dev = TAILQ_NEXT(vstart, next);
+	} else {
+		dev = TAILQ_FIRST(&vdev_device_list);
+	}
+	while (dev != NULL) {
 		if (cmp(&dev->device, data) == 0)
-			return &dev->device;
+			break;
+		dev = TAILQ_NEXT(dev, next);
 	}
-	return NULL;
+	rte_spinlock_recursive_unlock(&vdev_device_list_lock);
+
+	return dev ? &dev->device : NULL;
 }
 
 static int
diff --git a/drivers/bus/vmbus/Makefile b/drivers/bus/vmbus/Makefile
new file mode 100644
index 00000000..deee9dd1
--- /dev/null
+++ b/drivers/bus/vmbus/Makefile
@@ -0,0 +1,36 @@
+# SPDX-License-Identifier: BSD-3-Clause
+
+include $(RTE_SDK)/mk/rte.vars.mk
+
+LIB = librte_bus_vmbus.a
+LIBABIVER := 1
+EXPORT_MAP := rte_bus_vmbus_version.map
+
+CFLAGS += -I$(SRCDIR)
+CFLAGS += -O3 $(WERROR_FLAGS)
+CFLAGS += -DALLOW_EXPERIMENTAL_API
+
+ifneq ($(CONFIG_RTE_EXEC_ENV_LINUXAPP),)
+SYSTEM := linux
+endif
+ifneq ($(CONFIG_RTE_EXEC_ENV_BSDAPP),)
+$(error "VMBUS not implemented for BSD yet")
+endif
+
+CFLAGS += -I$(RTE_SDK)/drivers/bus/vmbus/$(SYSTEM)
+CFLAGS += -I$(RTE_SDK)/lib/librte_eal/common
+CFLAGS += -I$(RTE_SDK)/lib/librte_eal/$(SYSTEM)app/eal
+
+LDLIBS += -lrte_eal -lrte_mbuf -lrte_mempool -lrte_ring
+LDLIBS += -lrte_ethdev
+
+include $(RTE_SDK)/drivers/bus/vmbus/$(SYSTEM)/Makefile
+SRCS-$(CONFIG_RTE_LIBRTE_VMBUS) := $(addprefix $(SYSTEM)/,$(SRCS))
+SRCS-$(CONFIG_RTE_LIBRTE_VMBUS) += vmbus_common.c
+SRCS-$(CONFIG_RTE_LIBRTE_VMBUS) += vmbus_channel.c vmbus_bufring.c
+SRCS-$(CONFIG_RTE_LIBRTE_VMBUS) += vmbus_common_uio.c
+
+SYMLINK-$(CONFIG_RTE_LIBRTE_VMBUS)-include += rte_bus_vmbus.h
+SYMLINK-$(CONFIG_RTE_LIBRTE_VMBUS)-include += rte_vmbus_reg.h
+
+include $(RTE_SDK)/mk/rte.lib.mk
diff --git a/drivers/bus/vmbus/linux/Makefile b/drivers/bus/vmbus/linux/Makefile
new file mode 100644
index 00000000..ef0d30b2
--- /dev/null
+++ b/drivers/bus/vmbus/linux/Makefile
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: BSD-3-Clause
+
+SRCS += vmbus_bus.c vmbus_uio.c
diff --git a/drivers/bus/vmbus/linux/vmbus_bus.c b/drivers/bus/vmbus/linux/vmbus_bus.c
new file mode 100644
index 00000000..52d6a3c0
--- /dev/null
+++ b/drivers/bus/vmbus/linux/vmbus_bus.c
@@ -0,0 +1,355 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright (c) 2018, Microsoft Corporation.
+ * All Rights Reserved.
+ */
+
+#include <string.h>
+#include <unistd.h>
+#include <dirent.h>
+#include <fcntl.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+
+#include <rte_eal.h>
+#include <rte_uuid.h>
+#include <rte_tailq.h>
+#include <rte_log.h>
+#include <rte_devargs.h>
+#include <rte_memory.h>
+#include <rte_malloc.h>
+#include <rte_bus_vmbus.h>
+
+#include "eal_filesystem.h"
+#include "private.h"
+
+/** Pathname of VMBUS devices directory. */
+#define SYSFS_VMBUS_DEVICES "/sys/bus/vmbus/devices"
+
+extern struct rte_vmbus_bus rte_vmbus_bus;
+
+/* Read sysfs file to get UUID */
+static int
+parse_sysfs_uuid(const char *filename, rte_uuid_t uu)
+{
+	char buf[BUFSIZ];
+	char *cp, *in = buf;
+	FILE *f;
+
+	f = fopen(filename, "r");
+	if (f == NULL) {
+		VMBUS_LOG(ERR, "cannot open sysfs value %s: %s",
+			  filename, strerror(errno));
+		return -1;
+	}
+
+	if (fgets(buf, sizeof(buf), f) == NULL) {
+		VMBUS_LOG(ERR, "cannot read sysfs value %s",
+				filename);
+		fclose(f);
+		return -1;
+	}
+	fclose(f);
+
+	cp = strchr(buf, '\n');
+	if (cp)
+		*cp = '\0';
+
+	/* strip { } notation */
+	if (buf[0] == '{') {
+		in = buf + 1;
+		cp = strchr(in, '}');
+		if (cp)
+			*cp = '\0';
+	}
+
+	if (rte_uuid_parse(in, uu) < 0) {
+		VMBUS_LOG(ERR, "%s %s not a valid UUID",
+			filename, buf);
+		return -1;
+	}
+
+	return 0;
+}
+
+static int
+get_sysfs_string(const char *filename, char *buf, size_t buflen)
+{
+	char *cp;
+	FILE *f;
+
+	f = fopen(filename, "r");
+	if (f == NULL) {
+		VMBUS_LOG(ERR, "cannot open sysfs value %s:%s",
+			  filename, strerror(errno));
+		return -1;
+	}
+
+	if (fgets(buf, buflen, f) == NULL) {
+		VMBUS_LOG(ERR, "cannot read sysfs value %s",
+				filename);
+		fclose(f);
+		return -1;
+	}
+	fclose(f);
+
+	/* remove trailing newline */
+	cp = memchr(buf, '\n', buflen);
+	if (cp)
+		*cp = '\0';
+
+	return 0;
+}
+
+static int
+vmbus_get_uio_dev(const struct rte_vmbus_device *dev,
+		  char *dstbuf, size_t buflen)
+{
+	char dirname[PATH_MAX];
+	unsigned int uio_num;
+	struct dirent *e;
+	DIR *dir;
+
+	/* Assume recent kernel where uio is in uio/uioX */
+	snprintf(dirname, sizeof(dirname),
+		 SYSFS_VMBUS_DEVICES "/%s/uio", dev->device.name);
+
+	dir = opendir(dirname);
+	if (dir == NULL)
+		return -1; /* Not a UIO device */
+
+	/* take the first file starting with "uio" */
+	while ((e = readdir(dir)) != NULL) {
+		const int prefix_len = 3;
+		char *endptr;
+
+		if (strncmp(e->d_name, "uio", prefix_len) != 0)
+			continue;
+
+		/* try uio%d */
+		errno = 0;
+		uio_num = strtoull(e->d_name + prefix_len, &endptr, 10);
+		if (errno == 0 && endptr != (e->d_name + prefix_len)) {
+			snprintf(dstbuf, buflen, "%s/uio%u", dirname, uio_num);
+			break;
+		}
+	}
+	closedir(dir);
+
+	if (e == NULL)
+		return -1;
+
+	return uio_num;
+}
+
+/* Check map names with kernel names */
+static const char *map_names[VMBUS_MAX_RESOURCE] = {
+	[HV_TXRX_RING_MAP] = "txrx_rings",
+	[HV_INT_PAGE_MAP]  = "int_page",
+	[HV_MON_PAGE_MAP]  = "monitor_page",
+	[HV_RECV_BUF_MAP]  = "recv:",
+	[HV_SEND_BUF_MAP]  = "send:",
+};
+
+
+/* map the resources of a vmbus device in virtual memory */
+int
+rte_vmbus_map_device(struct rte_vmbus_device *dev)
+{
+	char uioname[PATH_MAX], filename[PATH_MAX];
+	char dirname[PATH_MAX], mapname[64];
+	int i;
+
+	dev->uio_num = vmbus_get_uio_dev(dev, uioname, sizeof(uioname));
+	if (dev->uio_num < 0) {
+		VMBUS_LOG(DEBUG, "Not managed by UIO driver, skipped");
+		return 1;
+	}
+
+	/* Extract resource value */
+	for (i = 0; i < VMBUS_MAX_RESOURCE; i++) {
+		struct rte_mem_resource *res = &dev->resource[i];
+		unsigned long len, gpad = 0;
+		char *cp;
+
+		snprintf(dirname, sizeof(dirname),
+			 "%s/maps/map%d", uioname, i);
+
+		snprintf(filename, sizeof(filename),
+			 "%s/name", dirname);
+
+		if (get_sysfs_string(filename, mapname, sizeof(mapname)) < 0) {
+			VMBUS_LOG(ERR, "could not read %s", filename);
+			return -1;
+		}
+
+		if (strncmp(map_names[i], mapname, strlen(map_names[i])) != 0) {
+			VMBUS_LOG(ERR,
+				"unexpected resource %s (expected %s)",
+				mapname, map_names[i]);
+			return -1;
+		}
+
+		snprintf(filename, sizeof(filename),
+			 "%s/size", dirname);
+		if (eal_parse_sysfs_value(filename, &len) < 0) {
+			VMBUS_LOG(ERR,
+				"could not read %s", filename);
+			return -1;
+		}
+		res->len = len;
+
+		/* both send and receive buffers have gpad in name */
+		cp = memchr(mapname, ':', sizeof(mapname));
+		if (cp)
+			gpad = strtoul(cp+1, NULL, 0);
+
+		/* put the GPAD value in physical address */
+		res->phys_addr = gpad;
+	}
+
+	return vmbus_uio_map_resource(dev);
+}
+
+void
+rte_vmbus_unmap_device(struct rte_vmbus_device *dev)
+{
+	vmbus_uio_unmap_resource(dev);
+}
+
+/* Scan one vmbus sysfs entry, and fill the devices list from it. */
+static int
+vmbus_scan_one(const char *name)
+{
+	struct rte_vmbus_device *dev, *dev2;
+	char filename[PATH_MAX];
+	char dirname[PATH_MAX];
+	unsigned long tmp;
+
+	dev = calloc(1, sizeof(*dev));
+	if (dev == NULL)
+		return -1;
+
+	dev->device.name = strdup(name);
+	if (!dev->device.name)
+		goto error;
+
+	/* sysfs base directory
+	 *   /sys/bus/vmbus/devices/7a08391f-f5a0-4ac0-9802-d13fd964f8df
+	 * or on older kernel
+	 *   /sys/bus/vmbus/devices/vmbus_1
+	 */
+	snprintf(dirname, sizeof(dirname), "%s/%s",
+		 SYSFS_VMBUS_DEVICES, name);
+
+	/* get device id */
+	snprintf(filename, sizeof(filename), "%s/device_id", dirname);
+	if (parse_sysfs_uuid(filename, dev->device_id) < 0)
+		goto error;
+
+	/* get device class  */
+	snprintf(filename, sizeof(filename), "%s/class_id", dirname);
+	if (parse_sysfs_uuid(filename, dev->class_id) < 0)
+		goto error;
+
+	/* get relid */
+	snprintf(filename, sizeof(filename), "%s/id", dirname);
+	if (eal_parse_sysfs_value(filename, &tmp) < 0)
+		goto error;
+	dev->relid = tmp;
+
+	/* get monitor id */
+	snprintf(filename, sizeof(filename), "%s/monitor_id", dirname);
+	if (eal_parse_sysfs_value(filename, &tmp) < 0)
+		goto error;
+	dev->monitor_id = tmp;
+
+	/* get numa node (if present) */
+	snprintf(filename, sizeof(filename), "%s/numa_node",
+		 dirname);
+
+	if (access(filename, R_OK) == 0) {
+		if (eal_parse_sysfs_value(filename, &tmp) < 0)
+			goto error;
+		dev->device.numa_node = tmp;
+	} else {
+		/* if no NUMA support, set default to 0 */
+		dev->device.numa_node = SOCKET_ID_ANY;
+	}
+
+	/* device is valid, add in list (sorted) */
+	VMBUS_LOG(DEBUG, "Adding vmbus device %s", name);
+
+	TAILQ_FOREACH(dev2, &rte_vmbus_bus.device_list, next) {
+		int ret;
+
+		ret = rte_uuid_compare(dev->device_id, dev2->device_id);
+		if (ret > 0)
+			continue;
+
+		if (ret < 0) {
+			vmbus_insert_device(dev2, dev);
+		} else { /* already registered */
+			VMBUS_LOG(NOTICE,
+				"%s already registered", name);
+			free(dev);
+		}
+		return 0;
+	}
+
+	vmbus_add_device(dev);
+	return 0;
+error:
+	VMBUS_LOG(DEBUG, "failed");
+
+	free(dev);
+	return -1;
+}
+
+/*
+ * Scan the content of the vmbus, and the devices in the devices list
+ */
+int
+rte_vmbus_scan(void)
+{
+	struct dirent *e;
+	DIR *dir;
+
+	dir = opendir(SYSFS_VMBUS_DEVICES);
+	if (dir == NULL) {
+		if (errno == ENOENT)
+			return 0;
+
+		VMBUS_LOG(ERR, "opendir %s failed: %s",
+			  SYSFS_VMBUS_DEVICES, strerror(errno));
+		return -1;
+	}
+
+	while ((e = readdir(dir)) != NULL) {
+		if (e->d_name[0] == '.')
+			continue;
+
+		if (vmbus_scan_one(e->d_name) < 0)
+			goto error;
+	}
+	closedir(dir);
+	return 0;
+
+error:
+	closedir(dir);
+	return -1;
+}
+
+void rte_vmbus_irq_mask(struct rte_vmbus_device *device)
+{
+	vmbus_uio_irq_control(device, 1);
+}
+
+void rte_vmbus_irq_unmask(struct rte_vmbus_device *device)
+{
+	vmbus_uio_irq_control(device, 0);
+}
+
+int rte_vmbus_irq_read(struct rte_vmbus_device *device)
+{
+	return vmbus_uio_irq_read(device);
+}
diff --git a/drivers/bus/vmbus/linux/vmbus_uio.c b/drivers/bus/vmbus/linux/vmbus_uio.c
new file mode 100644
index 00000000..856c6d66
--- /dev/null
+++ b/drivers/bus/vmbus/linux/vmbus_uio.c
@@ -0,0 +1,398 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright (c) 2018, Microsoft Corporation.
+ * All Rights Reserved.
+ */
+
+#include <string.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <dirent.h>
+#include <inttypes.h>
+#include <sys/stat.h>
+#include <sys/mman.h>
+
+#include <rte_log.h>
+#include <rte_bus.h>
+#include <rte_memory.h>
+#include <rte_eal_memconfig.h>
+#include <rte_common.h>
+#include <rte_malloc.h>
+#include <rte_bus_vmbus.h>
+#include <rte_string_fns.h>
+
+#include "private.h"
+
+/** Pathname of VMBUS devices directory. */
+#define SYSFS_VMBUS_DEVICES "/sys/bus/vmbus/devices"
+
+static void *vmbus_map_addr;
+
+/* Control interrupts */
+void vmbus_uio_irq_control(struct rte_vmbus_device *dev, int32_t onoff)
+{
+	if (write(dev->intr_handle.fd, &onoff, sizeof(onoff)) < 0) {
+		VMBUS_LOG(ERR, "cannot write to %d:%s",
+			dev->intr_handle.fd, strerror(errno));
+	}
+}
+
+int vmbus_uio_irq_read(struct rte_vmbus_device *dev)
+{
+	int32_t count;
+	int cc;
+
+	cc = read(dev->intr_handle.fd, &count, sizeof(count));
+	if (cc < (int)sizeof(count)) {
+		if (cc < 0) {
+			VMBUS_LOG(ERR, "IRQ read failed %s",
+				  strerror(errno));
+			return -errno;
+		}
+		VMBUS_LOG(ERR, "can't read IRQ count");
+		return -EINVAL;
+	}
+
+	return count;
+}
+
+void
+vmbus_uio_free_resource(struct rte_vmbus_device *dev,
+		struct mapped_vmbus_resource *uio_res)
+{
+	rte_free(uio_res);
+
+	if (dev->intr_handle.uio_cfg_fd >= 0) {
+		close(dev->intr_handle.uio_cfg_fd);
+		dev->intr_handle.uio_cfg_fd = -1;
+	}
+
+	if (dev->intr_handle.fd >= 0) {
+		close(dev->intr_handle.fd);
+		dev->intr_handle.fd = -1;
+		dev->intr_handle.type = RTE_INTR_HANDLE_UNKNOWN;
+	}
+}
+
+int
+vmbus_uio_alloc_resource(struct rte_vmbus_device *dev,
+			 struct mapped_vmbus_resource **uio_res)
+{
+	char devname[PATH_MAX]; /* contains the /dev/uioX */
+
+	/* save fd if in primary process */
+	snprintf(devname, sizeof(devname), "/dev/uio%u", dev->uio_num);
+	dev->intr_handle.fd = open(devname, O_RDWR);
+	if (dev->intr_handle.fd < 0) {
+		VMBUS_LOG(ERR, "Cannot open %s: %s",
+			devname, strerror(errno));
+		goto error;
+	}
+	dev->intr_handle.type = RTE_INTR_HANDLE_UIO_INTX;
+
+	/* allocate the mapping details for secondary processes*/
+	*uio_res = rte_zmalloc("UIO_RES", sizeof(**uio_res), 0);
+	if (*uio_res == NULL) {
+		VMBUS_LOG(ERR, "cannot store uio mmap details");
+		goto error;
+	}
+
+	strlcpy((*uio_res)->path, devname, PATH_MAX);
+	rte_uuid_copy((*uio_res)->id, dev->device_id);
+
+	return 0;
+
+error:
+	vmbus_uio_free_resource(dev, *uio_res);
+	return -1;
+}
+
+static int
+find_max_end_va(const struct rte_memseg_list *msl, void *arg)
+{
+	size_t sz = msl->memseg_arr.len * msl->page_sz;
+	void *end_va = RTE_PTR_ADD(msl->base_va, sz);
+	void **max_va = arg;
+
+	if (*max_va < end_va)
+		*max_va = end_va;
+	return 0;
+}
+
+/*
+ * TODO: this should be part of memseg api.
+ *       code is duplicated from PCI.
+ */
+static void *
+vmbus_find_max_end_va(void)
+{
+	void *va = NULL;
+
+	rte_memseg_list_walk(find_max_end_va, &va);
+	return va;
+}
+
+int
+vmbus_uio_map_resource_by_index(struct rte_vmbus_device *dev, int idx,
+				struct mapped_vmbus_resource *uio_res,
+				int flags)
+{
+	size_t size = dev->resource[idx].len;
+	struct vmbus_map *maps = uio_res->maps;
+	void *mapaddr;
+	off_t offset;
+	int fd;
+
+	/* devname for mmap  */
+	fd = open(uio_res->path, O_RDWR);
+	if (fd < 0) {
+		VMBUS_LOG(ERR, "Cannot open %s: %s",
+			  uio_res->path, strerror(errno));
+		return -1;
+	}
+
+	/* try mapping somewhere close to the end of hugepages */
+	if (vmbus_map_addr == NULL)
+		vmbus_map_addr = vmbus_find_max_end_va();
+
+	/* offset is special in uio it indicates which resource */
+	offset = idx * PAGE_SIZE;
+
+	mapaddr = vmbus_map_resource(vmbus_map_addr, fd, offset, size, flags);
+	close(fd);
+
+	if (mapaddr == MAP_FAILED)
+		return -1;
+
+	dev->resource[idx].addr = mapaddr;
+	vmbus_map_addr = RTE_PTR_ADD(mapaddr, size);
+
+	/* Record result of sucessful mapping for use by secondary */
+	maps[idx].addr = mapaddr;
+	maps[idx].size = size;
+
+	return 0;
+}
+
+static int vmbus_uio_map_primary(struct vmbus_channel *chan,
+				 void **ring_buf, uint32_t *ring_size)
+{
+	struct mapped_vmbus_resource *uio_res;
+
+	uio_res = vmbus_uio_find_resource(chan->device);
+	if (!uio_res) {
+		VMBUS_LOG(ERR, "can not find resources!");
+		return -ENOMEM;
+	}
+
+	if (uio_res->nb_maps < VMBUS_MAX_RESOURCE) {
+		VMBUS_LOG(ERR, "VMBUS: only %u resources found!",
+			  uio_res->nb_maps);
+		return -EINVAL;
+	}
+
+	*ring_size = uio_res->maps[HV_TXRX_RING_MAP].size / 2;
+	*ring_buf  = uio_res->maps[HV_TXRX_RING_MAP].addr;
+	return 0;
+}
+
+static int vmbus_uio_map_subchan(const struct rte_vmbus_device *dev,
+				 const struct vmbus_channel *chan,
+				 void **ring_buf, uint32_t *ring_size)
+{
+	char ring_path[PATH_MAX];
+	size_t file_size;
+	struct stat sb;
+	int fd;
+
+	snprintf(ring_path, sizeof(ring_path),
+		 "%s/%s/channels/%u/ring",
+		 SYSFS_VMBUS_DEVICES, dev->device.name,
+		 chan->relid);
+
+	fd = open(ring_path, O_RDWR);
+	if (fd < 0) {
+		VMBUS_LOG(ERR, "Cannot open %s: %s",
+			  ring_path, strerror(errno));
+		return -errno;
+	}
+
+	if (fstat(fd, &sb) < 0) {
+		VMBUS_LOG(ERR, "Cannot state %s: %s",
+			  ring_path, strerror(errno));
+		close(fd);
+		return -errno;
+	}
+	file_size = sb.st_size;
+
+	if (file_size == 0 || (file_size & (PAGE_SIZE - 1))) {
+		VMBUS_LOG(ERR, "incorrect size %s: %zu",
+			  ring_path, file_size);
+
+		close(fd);
+		return -EINVAL;
+	}
+
+	*ring_size = file_size / 2;
+	*ring_buf = vmbus_map_resource(vmbus_map_addr, fd,
+				       0, sb.st_size, 0);
+	close(fd);
+
+	if (ring_buf == MAP_FAILED)
+		return -EIO;
+
+	vmbus_map_addr = RTE_PTR_ADD(ring_buf, file_size);
+	return 0;
+}
+
+int vmbus_uio_map_rings(struct vmbus_channel *chan)
+{
+	const struct rte_vmbus_device *dev = chan->device;
+	uint32_t ring_size;
+	void *ring_buf;
+	int ret;
+
+	/* Primary channel */
+	if (chan->subchannel_id == 0)
+		ret = vmbus_uio_map_primary(chan, &ring_buf, &ring_size);
+	else
+		ret = vmbus_uio_map_subchan(dev, chan, &ring_buf, &ring_size);
+
+	if (ret)
+		return ret;
+
+	vmbus_br_setup(&chan->txbr, ring_buf, ring_size);
+	vmbus_br_setup(&chan->rxbr, (char *)ring_buf + ring_size, ring_size);
+	return 0;
+}
+
+static int vmbus_uio_sysfs_read(const char *dir, const char *name,
+				unsigned long *val, unsigned long max_range)
+{
+	char path[PATH_MAX];
+	FILE *f;
+	int ret;
+
+	snprintf(path, sizeof(path), "%s/%s", dir, name);
+	f = fopen(path, "r");
+	if (!f) {
+		VMBUS_LOG(ERR, "can't open %s:%s",
+			  path, strerror(errno));
+		return -errno;
+	}
+
+	if (fscanf(f, "%lu", val) != 1)
+		ret = -EIO;
+	else if (*val > max_range)
+		ret = -ERANGE;
+	else
+		ret = 0;
+	fclose(f);
+
+	return ret;
+}
+
+static bool vmbus_uio_ring_present(const struct rte_vmbus_device *dev,
+				   uint32_t relid)
+{
+	char ring_path[PATH_MAX];
+
+	/* Check if kernel has subchannel sysfs files */
+	snprintf(ring_path, sizeof(ring_path),
+		 "%s/%s/channels/%u/ring",
+		 SYSFS_VMBUS_DEVICES, dev->device.name, relid);
+
+	return access(ring_path, R_OK|W_OK) == 0;
+}
+
+bool vmbus_uio_subchannels_supported(const struct rte_vmbus_device *dev,
+				     const struct vmbus_channel *chan)
+{
+	return vmbus_uio_ring_present(dev, chan->relid);
+}
+
+static bool vmbus_isnew_subchannel(struct vmbus_channel *primary,
+				   unsigned long id)
+{
+	const struct vmbus_channel *c;
+
+	STAILQ_FOREACH(c, &primary->subchannel_list, next) {
+		if (c->relid == id)
+			return false;
+	}
+	return true;
+}
+
+int vmbus_uio_get_subchan(struct vmbus_channel *primary,
+			  struct vmbus_channel **subchan)
+{
+	const struct rte_vmbus_device *dev = primary->device;
+	char chan_path[PATH_MAX], subchan_path[PATH_MAX];
+	struct dirent *ent;
+	DIR *chan_dir;
+
+	snprintf(chan_path, sizeof(chan_path),
+		 "%s/%s/channels",
+		 SYSFS_VMBUS_DEVICES, dev->device.name);
+
+	chan_dir = opendir(chan_path);
+	if (!chan_dir) {
+		VMBUS_LOG(ERR, "cannot open %s: %s",
+			  chan_path, strerror(errno));
+		return -errno;
+	}
+
+	while ((ent = readdir(chan_dir))) {
+		unsigned long relid, subid, monid;
+		char *endp;
+		int err;
+
+		if (ent->d_name[0] == '.')
+			continue;
+
+		errno = 0;
+		relid = strtoul(ent->d_name, &endp, 0);
+		if (*endp || errno != 0 || relid > UINT16_MAX) {
+			VMBUS_LOG(NOTICE, "not a valid channel relid: %s",
+				  ent->d_name);
+			continue;
+		}
+
+		snprintf(subchan_path, sizeof(subchan_path), "%s/%lu",
+			 chan_path, relid);
+		err = vmbus_uio_sysfs_read(subchan_path, "subchannel_id",
+					   &subid, UINT16_MAX);
+		if (err) {
+			VMBUS_LOG(NOTICE, "invalid subchannel id %lu",
+				  subid);
+			closedir(chan_dir);
+			return err;
+		}
+
+		if (subid == 0)
+			continue;	/* skip primary channel */
+
+		if (!vmbus_isnew_subchannel(primary, relid))
+			continue;
+
+		if (!vmbus_uio_ring_present(dev, relid))
+			continue;	/* Ring may not be ready yet */
+
+		err = vmbus_uio_sysfs_read(subchan_path, "monitor_id",
+					   &monid, UINT8_MAX);
+		if (err) {
+			VMBUS_LOG(NOTICE, "invalid monitor id %lu",
+				  monid);
+			return err;
+		}
+
+		err = vmbus_chan_create(dev, relid, subid, monid, subchan);
+		if (err) {
+			VMBUS_LOG(NOTICE, "subchannel setup failed");
+			return err;
+		}
+		break;
+	}
+	closedir(chan_dir);
+
+	return (ent == NULL) ? -ENOENT : 0;
+}
diff --git a/drivers/bus/vmbus/meson.build b/drivers/bus/vmbus/meson.build
new file mode 100644
index 00000000..18daabec
--- /dev/null
+++ b/drivers/bus/vmbus/meson.build
@@ -0,0 +1,18 @@
+# SPDX-License-Identifier: BSD-3-Clause
+
+allow_experimental_apis = true
+
+install_headers('rte_bus_vmbus.h','rte_vmbus_reg.h')
+
+sources = files('vmbus_common.c',
+		'vmbus_channel.c',
+		'vmbus_bufring.c',
+		'vmbus_common_uio.c')
+
+if host_machine.system() == 'linux'
+	sources += files('linux/vmbus_bus.c',
+			'linux/vmbus_uio.c')
+	includes += include_directories('linux')
+else
+	build = false
+endif
diff --git a/drivers/bus/vmbus/private.h b/drivers/bus/vmbus/private.h
new file mode 100644
index 00000000..9964fc42
--- /dev/null
+++ b/drivers/bus/vmbus/private.h
@@ -0,0 +1,132 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright (c) 2018, Microsoft Corporation.
+ * All Rights Reserved.
+ */
+
+#ifndef _VMBUS_PRIVATE_H_
+#define _VMBUS_PRIVATE_H_
+
+#include <stdbool.h>
+#include <sys/uio.h>
+#include <rte_log.h>
+#include <rte_vmbus_reg.h>
+
+#ifndef PAGE_SIZE
+#define PAGE_SIZE	4096
+#endif
+
+extern int vmbus_logtype_bus;
+#define VMBUS_LOG(level, fmt, args...) \
+	rte_log(RTE_LOG_ ## level, vmbus_logtype_bus, "%s(): " fmt "\n", \
+		__func__, ##args)
+
+struct vmbus_br {
+	struct vmbus_bufring *vbr;
+	uint32_t	dsize;
+	uint32_t	windex; /* next available location */
+};
+
+#define UIO_NAME_MAX 64
+
+struct vmbus_map {
+	void *addr;	/* user mmap of resource */
+	uint64_t size;	/* length */
+};
+
+/*
+ * For multi-process we need to reproduce all vmbus mappings in secondary
+ * processes, so save them in a tailq.
+ */
+struct mapped_vmbus_resource {
+	TAILQ_ENTRY(mapped_vmbus_resource) next;
+
+	rte_uuid_t id;
+	int nb_maps;
+	struct vmbus_map maps[VMBUS_MAX_RESOURCE];
+	char path[PATH_MAX];
+};
+
+TAILQ_HEAD(mapped_vmbus_res_list, mapped_vmbus_resource);
+
+#define HV_MON_TRIG_LEN	32
+#define HV_MON_TRIG_MAX	4
+
+struct vmbus_channel {
+	STAILQ_HEAD(, vmbus_channel) subchannel_list;
+	STAILQ_ENTRY(vmbus_channel) next;
+	const struct rte_vmbus_device *device;
+
+	struct vmbus_br rxbr;
+	struct vmbus_br txbr;
+
+	uint16_t relid;
+	uint16_t subchannel_id;
+	uint8_t monitor_id;
+};
+
+#define VMBUS_MAX_CHANNELS	64
+
+int vmbus_chan_create(const struct rte_vmbus_device *device,
+		      uint16_t relid, uint16_t subid, uint8_t monitor_id,
+		      struct vmbus_channel **new_chan);
+
+void vmbus_add_device(struct rte_vmbus_device *vmbus_dev);
+void vmbus_insert_device(struct rte_vmbus_device *exist_vmbus_dev,
+			 struct rte_vmbus_device *new_vmbus_dev);
+void vmbus_remove_device(struct rte_vmbus_device *vmbus_device);
+
+void vmbus_uio_irq_control(struct rte_vmbus_device *dev, int32_t onoff);
+int vmbus_uio_irq_read(struct rte_vmbus_device *dev);
+
+int vmbus_uio_map_resource(struct rte_vmbus_device *dev);
+void vmbus_uio_unmap_resource(struct rte_vmbus_device *dev);
+
+int vmbus_uio_alloc_resource(struct rte_vmbus_device *dev,
+		struct mapped_vmbus_resource **uio_res);
+void vmbus_uio_free_resource(struct rte_vmbus_device *dev,
+		struct mapped_vmbus_resource *uio_res);
+
+struct mapped_vmbus_resource *
+vmbus_uio_find_resource(const struct rte_vmbus_device *dev);
+int vmbus_uio_map_resource_by_index(struct rte_vmbus_device *dev, int res_idx,
+				    struct mapped_vmbus_resource *uio_res,
+				    int flags);
+
+void *vmbus_map_resource(void *requested_addr, int fd, off_t offset,
+		size_t size, int additional_flags);
+void vmbus_unmap_resource(void *requested_addr, size_t size);
+
+bool vmbus_uio_subchannels_supported(const struct rte_vmbus_device *dev,
+				     const struct vmbus_channel *chan);
+int vmbus_uio_get_subchan(struct vmbus_channel *primary,
+			  struct vmbus_channel **subchan);
+int vmbus_uio_map_rings(struct vmbus_channel *chan);
+
+void vmbus_br_setup(struct vmbus_br *br, void *buf, unsigned int blen);
+
+/* Amount of space available for write */
+static inline uint32_t
+vmbus_br_availwrite(const struct vmbus_br *br, uint32_t windex)
+{
+	uint32_t rindex = br->vbr->rindex;
+
+	if (windex >= rindex)
+		return br->dsize - (windex - rindex);
+	else
+		return rindex - windex;
+}
+
+static inline uint32_t
+vmbus_br_availread(const struct vmbus_br *br)
+{
+	return br->dsize - vmbus_br_availwrite(br, br->vbr->windex);
+}
+
+int vmbus_txbr_write(struct vmbus_br *tbr, const struct iovec iov[], int iovlen,
+		     bool *need_sig);
+
+int vmbus_rxbr_peek(const struct vmbus_br *rbr, void *data, size_t dlen);
+
+int vmbus_rxbr_read(struct vmbus_br *rbr, void *data, size_t dlen, size_t hlen);
+
+#endif /* _VMBUS_PRIVATE_H_ */
diff --git a/drivers/bus/vmbus/rte_bus_vmbus.h b/drivers/bus/vmbus/rte_bus_vmbus.h
new file mode 100644
index 00000000..4a2c1f6f
--- /dev/null
+++ b/drivers/bus/vmbus/rte_bus_vmbus.h
@@ -0,0 +1,407 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright (c) 2018, Microsoft Corporation.
+ * All Rights Reserved.
+ */
+
+#ifndef _VMBUS_H_
+#define _VMBUS_H_
+
+/**
+ * @file
+ *
+ * VMBUS Interface
+ */
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <limits.h>
+#include <stdbool.h>
+#include <errno.h>
+#include <sys/queue.h>
+#include <stdint.h>
+#include <inttypes.h>
+
+#include <rte_compat.h>
+#include <rte_uuid.h>
+#include <rte_debug.h>
+#include <rte_interrupts.h>
+#include <rte_dev.h>
+#include <rte_vmbus_reg.h>
+
+/* Forward declarations */
+struct rte_vmbus_device;
+struct rte_vmbus_driver;
+struct rte_vmbus_bus;
+struct vmbus_channel;
+struct vmbus_mon_page;
+
+TAILQ_HEAD(rte_vmbus_device_list, rte_vmbus_device);
+TAILQ_HEAD(rte_vmbus_driver_list, rte_vmbus_driver);
+
+/* VMBus iterators */
+#define FOREACH_DEVICE_ON_VMBUS(p)	\
+	TAILQ_FOREACH(p, &(rte_vmbus_bus.device_list), next)
+
+#define FOREACH_DRIVER_ON_VMBUS(p)	\
+	TAILQ_FOREACH(p, &(rte_vmbus_bus.driver_list), next)
+
+/** Maximum number of VMBUS resources. */
+enum hv_uio_map {
+	HV_TXRX_RING_MAP = 0,
+	HV_INT_PAGE_MAP,
+	HV_MON_PAGE_MAP,
+	HV_RECV_BUF_MAP,
+	HV_SEND_BUF_MAP
+};
+#define VMBUS_MAX_RESOURCE 5
+
+/**
+ * A structure describing a VMBUS device.
+ */
+struct rte_vmbus_device {
+	TAILQ_ENTRY(rte_vmbus_device) next;    /**< Next probed VMBUS device */
+	const struct rte_vmbus_driver *driver; /**< Associated driver */
+	struct rte_device device;              /**< Inherit core device */
+	rte_uuid_t device_id;		       /**< VMBUS device id */
+	rte_uuid_t class_id;		       /**< VMBUS device type */
+	uint32_t relid;			       /**< id for primary */
+	uint8_t monitor_id;		       /**< monitor page */
+	int uio_num;			       /**< UIO device number */
+	uint32_t *int_page;		       /**< VMBUS interrupt page */
+	struct vmbus_channel *primary;	       /**< VMBUS primary channel */
+	struct vmbus_mon_page *monitor_page;   /**< VMBUS monitor page */
+
+	struct rte_intr_handle intr_handle;    /**< Interrupt handle */
+	struct rte_mem_resource resource[VMBUS_MAX_RESOURCE];
+};
+
+/**
+ * Initialization function for the driver called during VMBUS probing.
+ */
+typedef int (vmbus_probe_t)(struct rte_vmbus_driver *,
+			    struct rte_vmbus_device *);
+
+/**
+ * Initialization function for the driver called during hot plugging.
+ */
+typedef int (vmbus_remove_t)(struct rte_vmbus_device *);
+
+/**
+ * A structure describing a VMBUS driver.
+ */
+struct rte_vmbus_driver {
+	TAILQ_ENTRY(rte_vmbus_driver) next; /**< Next in list. */
+	struct rte_driver driver;
+	struct rte_vmbus_bus *bus;          /**< VM bus reference. */
+	vmbus_probe_t *probe;               /**< Device Probe function. */
+	vmbus_remove_t *remove;             /**< Device Remove function. */
+
+	const rte_uuid_t *id_table;	    /**< ID table. */
+};
+
+
+/**
+ * Structure describing the VM bus
+ */
+struct rte_vmbus_bus {
+	struct rte_bus bus;               /**< Inherit the generic class */
+	struct rte_vmbus_device_list device_list;  /**< List of devices */
+	struct rte_vmbus_driver_list driver_list;  /**< List of drivers */
+};
+
+/**
+ * Scan the content of the VMBUS bus, and the devices in the devices
+ * list
+ *
+ * @return
+ *  0 on success, negative on error
+ */
+int rte_vmbus_scan(void);
+
+/**
+ * Probe the VMBUS bus
+ *
+ * @return
+ *   - 0 on success.
+ *   - !0 on error.
+ */
+int rte_vmbus_probe(void);
+
+/**
+ * Map the VMBUS device resources in user space virtual memory address
+ *
+ * @param dev
+ *   A pointer to a rte_vmbus_device structure describing the device
+ *   to use
+ *
+ * @return
+ *   0 on success, negative on error and positive if no driver
+ *   is found for the device.
+ */
+int rte_vmbus_map_device(struct rte_vmbus_device *dev);
+
+/**
+ * Unmap this device
+ *
+ * @param dev
+ *   A pointer to a rte_vmbus_device structure describing the device
+ *   to use
+ */
+void rte_vmbus_unmap_device(struct rte_vmbus_device *dev);
+
+/**
+ * Get connection to primary VMBUS channel
+ *
+ * @param device
+ *   A pointer to a rte_vmbus_device structure describing the device
+ * @param chan
+ *   A pointer to a VMBUS channel pointer that will be filled.
+ * @return
+ *   - 0 Success; channel opened.
+ *   - -ENOMEM: Not enough memory available.
+ *   - -EINVAL: Regions could not be mapped.
+ */
+int rte_vmbus_chan_open(struct rte_vmbus_device *device,
+			struct vmbus_channel **chan);
+
+/**
+ * Free connection to VMBUS channel
+ *
+ * @param chan
+ *    VMBUS channel
+ */
+void rte_vmbus_chan_close(struct vmbus_channel *chan);
+
+/**
+ * Gets the maximum number of channels supported on device
+ *
+ * @param device
+ *   A pointer to a rte_vmbus_device structure describing the device
+ * @return
+ *   Number of channels available.
+ */
+int rte_vmbus_max_channels(const struct rte_vmbus_device *device);
+
+/**
+ * Get a connection to new secondary vmbus channel
+ *
+ * @param primary
+ *   A pointer to primary VMBUS channel
+ * @param chan
+ *   A pointer to a secondary VMBUS channel pointer that will be filled.
+ * @return
+ *   - 0 Success; channel opened.
+ *   - -ENOMEM: Not enough memory available.
+ *   - -EINVAL: Regions could not be mapped.
+ */
+int rte_vmbus_subchan_open(struct vmbus_channel *primary,
+			   struct vmbus_channel **new_chan);
+
+/**
+ * Disable IRQ for device
+ *
+ * @param device
+ *    VMBUS device
+ */
+void rte_vmbus_irq_mask(struct rte_vmbus_device *device);
+
+/**
+ * Enable IRQ for device
+ *
+ * @param device
+ *    VMBUS device
+ */
+void rte_vmbus_irq_unmask(struct rte_vmbus_device *device);
+
+/**
+ * Read (and wait) for IRQ
+ *
+ * @param device
+ *    VMBUS device
+ */
+int rte_vmbus_irq_read(struct rte_vmbus_device *device);
+
+/**
+ * Test if channel is empty
+ *
+ * @param channel
+ *	Pointer to vmbus_channel structure.
+ * @return
+ *	Return true if no data present in incoming ring.
+ */
+bool rte_vmbus_chan_rx_empty(const struct vmbus_channel *channel);
+
+/**
+ * Send the specified buffer on the given channel
+ *
+ * @param channel
+ *	Pointer to vmbus_channel structure.
+ * @param type
+ *	Type of packet that is being send e.g. negotiate, time
+ *	packet etc.
+ * @param data
+ *	Pointer to the buffer to send
+ * @param dlen
+ *	Number of bytes of data to send
+ * @param xact
+ *	Identifier of the request
+ * @param flags
+ *	Message type inband, rxbuf, gpa
+ * @param need_sig
+ *	Is host signal tx is required (optional)
+ *
+ * Sends data in buffer directly to hyper-v via the vmbus
+ */
+int rte_vmbus_chan_send(struct vmbus_channel *channel, uint16_t type,
+			void *data, uint32_t dlen,
+			uint64_t xact, uint32_t flags, bool *need_sig);
+
+/**
+ * Explicitly signal host that data is available
+ *
+ * @param
+ *	Pointer to vmbus_channel structure.
+ *
+ * Used when batching multiple sends and only signaling host
+ * after the last send.
+ */
+void rte_vmbus_chan_signal_tx(const struct vmbus_channel *channel);
+
+/* Structure for scatter/gather I/O */
+struct iova_list {
+	rte_iova_t	addr;
+	uint32_t	len;
+};
+#define MAX_PAGE_BUFFER_COUNT		32
+
+/**
+ * Send a scattered buffer on the given channel
+ *
+ * @param channel
+ *	Pointer to vmbus_channel structure.
+ * @param type
+ *	Type of packet that is being send e.g. negotiate, time
+ *	packet etc.
+ * @param gpa
+ *	Array of buffers to send
+ * @param gpacnt
+ *	Number of elements in iov
+ * @param data
+ *	Pointer to the buffer additional data to send
+ * @param dlen
+ *	 Maximum size of what the the buffer will hold
+ * @param xact
+ *	Identifier of the request
+ * @param flags
+ *	Message type inband, rxbuf, gpa
+ * @param need_sig
+ *	Is host signal tx is required (optional)
+ *
+ * Sends data in buffer directly to hyper-v via the vmbus
+ */
+int rte_vmbus_chan_send_sglist(struct vmbus_channel *channel,
+			       struct vmbus_gpa gpa[], uint32_t gpacnt,
+			       void *data, uint32_t dlen,
+			       uint64_t xact, bool *need_sig);
+/**
+ * Receive response to request on the given channel
+ * skips the channel header.
+ *
+ * @param channel
+ *	Pointer to vmbus_channel structure.
+ * @param data
+ *	Pointer to the buffer you want to receive the data into.
+ * @param len
+ *	Pointer to size of receive buffer (in/out)
+ * @param
+ *	Pointer to received transaction_id
+ * @return
+ *   On success, returns 0
+ *   On failure, returns negative errno.
+ */
+int rte_vmbus_chan_recv(struct vmbus_channel *chan,
+			void *data, uint32_t *len,
+			uint64_t *request_id);
+
+/**
+ * Receive response to request on the given channel
+ * includes the channel header.
+ *
+ * @param channel
+ *	Pointer to vmbus_channel structure.
+ * @param data
+ *	Pointer to the buffer you want to receive the data into.
+ * @param len
+ *	Pointer to size of receive buffer (in/out)
+ * @return
+ *   On success, returns number of bytes read.
+ *   On failure, returns negative errno.
+ */
+int rte_vmbus_chan_recv_raw(struct vmbus_channel *chan,
+			    void *data, uint32_t *len);
+
+/**
+ * Notify host of bytes read (after recv_raw)
+ * Signals host if required.
+ *
+ * @param channel
+ *	Pointer to vmbus_channel structure.
+ * @param bytes_read
+ *	Number of bytes read since last signal
+ */
+void rte_vmbus_chan_signal_read(struct vmbus_channel *chan, uint32_t bytes_read);
+
+/**
+ * Determine sub channel index of the given channel
+ *
+ * @param channel
+ *	Pointer to vmbus_channel structure.
+ * @return
+ *   Sub channel index (0 for primary)
+ */
+uint16_t rte_vmbus_sub_channel_index(const struct vmbus_channel *chan);
+
+/**
+ * Register a VMBUS driver.
+ *
+ * @param driver
+ *   A pointer to a rte_vmbus_driver structure describing the driver
+ *   to be registered.
+ */
+void rte_vmbus_register(struct rte_vmbus_driver *driver);
+
+/**
+ * For debug dump contents of ring buffer.
+ *
+ * @param channel
+ *	Pointer to vmbus_channel structure.
+ */
+void rte_vmbus_chan_dump(FILE *f, const struct vmbus_channel *chan);
+
+/**
+ * Unregister a VMBUS driver.
+ *
+ * @param driver
+ *   A pointer to a rte_vmbus_driver structure describing the driver
+ *   to be unregistered.
+ */
+void rte_vmbus_unregister(struct rte_vmbus_driver *driver);
+
+/** Helper for VMBUS device registration from driver instance */
+#define RTE_PMD_REGISTER_VMBUS(nm, vmbus_drv)		\
+	RTE_INIT(vmbusinitfn_ ##nm);			\
+	static void vmbusinitfn_ ##nm(void)		\
+	{						\
+		(vmbus_drv).driver.name = RTE_STR(nm);	\
+		rte_vmbus_register(&vmbus_drv);		\
+	}						\
+	RTE_PMD_EXPORT_NAME(nm, __COUNTER__)
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _VMBUS_H_ */
diff --git a/drivers/bus/vmbus/rte_bus_vmbus_version.map b/drivers/bus/vmbus/rte_bus_vmbus_version.map
new file mode 100644
index 00000000..dabb9203
--- /dev/null
+++ b/drivers/bus/vmbus/rte_bus_vmbus_version.map
@@ -0,0 +1,29 @@
+/* SPDX-License-Identifier: BSD-3-Clause */
+
+DPDK_18.08 {
+	global:
+
+	rte_vmbus_chan_close;
+	rte_vmbus_chan_open;
+	rte_vmbus_chan_recv;
+	rte_vmbus_chan_recv_raw;
+	rte_vmbus_chan_rx_empty;
+	rte_vmbus_chan_send;
+	rte_vmbus_chan_send_sglist;
+	rte_vmbus_chan_signal_read;
+	rte_vmbus_chan_signal_tx;
+	rte_vmbus_irq_mask;
+	rte_vmbus_irq_read;
+	rte_vmbus_irq_unmask;
+	rte_vmbus_map_device;
+	rte_vmbus_max_channels;
+	rte_vmbus_probe;
+	rte_vmbus_register;
+	rte_vmbus_scan;
+	rte_vmbus_sub_channel_index;
+	rte_vmbus_subchan_open;
+	rte_vmbus_unmap_device;
+	rte_vmbus_unregister;
+
+	local: *;
+};
diff --git a/drivers/bus/vmbus/rte_vmbus_reg.h b/drivers/bus/vmbus/rte_vmbus_reg.h
new file mode 100644
index 00000000..f5a0693d
--- /dev/null
+++ b/drivers/bus/vmbus/rte_vmbus_reg.h
@@ -0,0 +1,344 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright (c) 2018, Microsoft Corporation.
+ * All Rights Reserved.
+ */
+
+#ifndef _VMBUS_REG_H_
+#define _VMBUS_REG_H_
+
+/*
+ * Hyper-V SynIC message format.
+ */
+#define VMBUS_MSG_DSIZE_MAX		240
+#define VMBUS_MSG_SIZE			256
+
+struct vmbus_message {
+	uint32_t	type;	/* HYPERV_MSGTYPE_ */
+	uint8_t		dsize;	/* data size */
+	uint8_t		flags;	/* VMBUS_MSGFLAG_ */
+	uint16_t	rsvd;
+	uint64_t	id;
+	uint8_t		data[VMBUS_MSG_DSIZE_MAX];
+} __rte_packed;
+
+#define VMBUS_MSGFLAG_PENDING		0x01
+
+/*
+ * Hyper-V Monitor Notification Facility
+ */
+
+struct vmbus_mon_trig {
+	uint32_t	pending;
+	uint32_t	armed;
+} __rte_packed;
+
+#define VMBUS_MONTRIGS_MAX	4
+#define VMBUS_MONTRIG_LEN	32
+
+/*
+ * Hyper-V Monitor Notification Facility
+ */
+struct hyperv_mon_param {
+	uint32_t	connid;
+	uint16_t	evtflag_ofs;
+	uint16_t	rsvd;
+} __rte_packed;
+
+struct vmbus_mon_page {
+	uint32_t	state;
+	uint32_t	rsvd1;
+
+	struct vmbus_mon_trig trigs[VMBUS_MONTRIGS_MAX];
+	uint8_t		rsvd2[536];
+
+	uint16_t	lat[VMBUS_MONTRIGS_MAX][VMBUS_MONTRIG_LEN];
+	uint8_t		rsvd3[256];
+
+	struct hyperv_mon_param
+			param[VMBUS_MONTRIGS_MAX][VMBUS_MONTRIG_LEN];
+	uint8_t		rsvd4[1984];
+} __rte_packed;
+
+/*
+ * Buffer ring
+ */
+
+struct vmbus_bufring {
+	volatile uint32_t windex;
+	volatile uint32_t rindex;
+
+	/*
+	 * Interrupt mask {0,1}
+	 *
+	 * For TX bufring, host set this to 1, when it is processing
+	 * the TX bufring, so that we can safely skip the TX event
+	 * notification to host.
+	 *
+	 * For RX bufring, once this is set to 1 by us, host will not
+	 * further dispatch interrupts to us, even if there are data
+	 * pending on the RX bufring.  This effectively disables the
+	 * interrupt of the channel to which this RX bufring is attached.
+	 */
+	volatile uint32_t imask;
+
+	/*
+	 * Win8 uses some of the reserved bits to implement
+	 * interrupt driven flow management. On the send side
+	 * we can request that the receiver interrupt the sender
+	 * when the ring transitions from being full to being able
+	 * to handle a message of size "pending_send_sz".
+	 *
+	 * Add necessary state for this enhancement.
+	 */
+	volatile uint32_t pending_send;
+	uint32_t reserved1[12];
+
+	union {
+		struct {
+			uint32_t feat_pending_send_sz:1;
+		};
+		uint32_t value;
+	} feature_bits;
+
+	/* Pad it to PAGE_SIZE so that data starts on page boundary */
+	uint8_t	reserved2[4028];
+
+	/*
+	 * Ring data starts here + RingDataStartOffset
+	 * !!! DO NOT place any fields below this !!!
+	 */
+	uint8_t data[0];
+} __rte_packed;
+
+/*
+ * Channel packets
+ */
+
+/* Channel packet flags */
+#define VMBUS_CHANPKT_TYPE_INBAND      0x0006
+#define VMBUS_CHANPKT_TYPE_RXBUF       0x0007
+#define VMBUS_CHANPKT_TYPE_GPA         0x0009
+#define VMBUS_CHANPKT_TYPE_COMP        0x000b
+
+#define VMBUS_CHANPKT_FLAG_NONE        0
+#define VMBUS_CHANPKT_FLAG_RC          0x0001  /* report completion */
+
+#define VMBUS_CHANPKT_SIZE_SHIFT	3
+#define VMBUS_CHANPKT_SIZE_ALIGN	(1 << VMBUS_CHANPKT_SIZE_SHIFT)
+#define VMBUS_CHANPKT_HLEN_MIN		\
+	(sizeof(struct vmbus_chanpkt_hdr) >> VMBUS_CHANPKT_SIZE_SHIFT)
+
+static inline uint32_t
+vmbus_chanpkt_getlen(uint16_t pktlen)
+{
+	return (uint32_t)pktlen << VMBUS_CHANPKT_SIZE_SHIFT;
+}
+
+/*
+ * GPA stuffs.
+ */
+struct vmbus_gpa_range {
+	uint32_t       len;
+	uint32_t       ofs;
+	uint64_t       page[0];
+} __rte_packed;
+
+/* This is actually vmbus_gpa_range.gpa_page[1] */
+struct vmbus_gpa {
+	uint32_t	len;
+	uint32_t	ofs;
+	uint64_t	page;
+} __rte_packed;
+
+struct vmbus_chanpkt_hdr {
+	uint16_t	type;	/* VMBUS_CHANPKT_TYPE_ */
+	uint16_t	hlen;	/* header len, in 8 bytes */
+	uint16_t	tlen;	/* total len, in 8 bytes */
+	uint16_t	flags;	/* VMBUS_CHANPKT_FLAG_ */
+	uint64_t	xactid;
+} __rte_packed;
+
+static inline uint32_t
+vmbus_chanpkt_datalen(const struct vmbus_chanpkt_hdr *pkt)
+{
+	return vmbus_chanpkt_getlen(pkt->tlen)
+		- vmbus_chanpkt_getlen(pkt->hlen);
+}
+
+struct vmbus_chanpkt {
+	struct vmbus_chanpkt_hdr hdr;
+} __rte_packed;
+
+struct vmbus_rxbuf_desc {
+	uint32_t	len;
+	uint32_t	ofs;
+} __rte_packed;
+
+struct vmbus_chanpkt_rxbuf {
+	struct vmbus_chanpkt_hdr hdr;
+	uint16_t	rxbuf_id;
+	uint16_t	rsvd;
+	uint32_t	rxbuf_cnt;
+	struct vmbus_rxbuf_desc rxbuf[];
+} __rte_packed;
+
+struct vmbus_chanpkt_sglist {
+	struct vmbus_chanpkt_hdr hdr;
+	uint32_t	rsvd;
+	uint32_t	gpa_cnt;
+	struct vmbus_gpa gpa[];
+} __rte_packed;
+
+/*
+ * Channel messages
+ * - Embedded in vmbus_message.msg_data, e.g. response and notification.
+ * - Embedded in hypercall_postmsg_in.hc_data, e.g. request.
+ */
+
+#define VMBUS_CHANMSG_TYPE_CHOFFER		1	/* NOTE */
+#define VMBUS_CHANMSG_TYPE_CHRESCIND		2	/* NOTE */
+#define VMBUS_CHANMSG_TYPE_CHREQUEST		3	/* REQ */
+#define VMBUS_CHANMSG_TYPE_CHOFFER_DONE		4	/* NOTE */
+#define VMBUS_CHANMSG_TYPE_CHOPEN		5	/* REQ */
+#define VMBUS_CHANMSG_TYPE_CHOPEN_RESP		6	/* RESP */
+#define VMBUS_CHANMSG_TYPE_CHCLOSE		7	/* REQ */
+#define VMBUS_CHANMSG_TYPE_GPADL_CONN		8	/* REQ */
+#define VMBUS_CHANMSG_TYPE_GPADL_SUBCONN	9	/* REQ */
+#define VMBUS_CHANMSG_TYPE_GPADL_CONNRESP	10	/* RESP */
+#define VMBUS_CHANMSG_TYPE_GPADL_DISCONN	11	/* REQ */
+#define VMBUS_CHANMSG_TYPE_GPADL_DISCONNRESP	12	/* RESP */
+#define VMBUS_CHANMSG_TYPE_CHFREE		13	/* REQ */
+#define VMBUS_CHANMSG_TYPE_CONNECT		14	/* REQ */
+#define VMBUS_CHANMSG_TYPE_CONNECT_RESP		15	/* RESP */
+#define VMBUS_CHANMSG_TYPE_DISCONNECT		16	/* REQ */
+#define VMBUS_CHANMSG_TYPE_MAX			22
+
+struct vmbus_chanmsg_hdr {
+	uint32_t	type;	/* VMBUS_CHANMSG_TYPE_ */
+	uint32_t	rsvd;
+} __rte_packed;
+
+/* VMBUS_CHANMSG_TYPE_CONNECT */
+struct vmbus_chanmsg_connect {
+	struct vmbus_chanmsg_hdr hdr;
+	uint32_t	ver;
+	uint32_t	rsvd;
+	uint64_t	evtflags;
+	uint64_t	mnf1;
+	uint64_t	mnf2;
+} __rte_packed;
+
+/* VMBUS_CHANMSG_TYPE_CONNECT_RESP */
+struct vmbus_chanmsg_connect_resp {
+	struct vmbus_chanmsg_hdr hdr;
+	uint8_t		done;
+} __rte_packed;
+
+/* VMBUS_CHANMSG_TYPE_CHREQUEST */
+struct vmbus_chanmsg_chrequest {
+	struct vmbus_chanmsg_hdr hdr;
+} __rte_packed;
+
+/* VMBUS_CHANMSG_TYPE_DISCONNECT */
+struct vmbus_chanmsg_disconnect {
+	struct vmbus_chanmsg_hdr hdr;
+} __rte_packed;
+
+/* VMBUS_CHANMSG_TYPE_CHOPEN */
+struct vmbus_chanmsg_chopen {
+	struct vmbus_chanmsg_hdr hdr;
+	uint32_t	chanid;
+	uint32_t	openid;
+	uint32_t	gpadl;
+	uint32_t	vcpuid;
+	uint32_t	txbr_pgcnt;
+#define VMBUS_CHANMSG_CHOPEN_UDATA_SIZE	120
+	uint8_t		udata[VMBUS_CHANMSG_CHOPEN_UDATA_SIZE];
+} __rte_packed;
+
+/* VMBUS_CHANMSG_TYPE_CHOPEN_RESP */
+struct vmbus_chanmsg_chopen_resp {
+	struct vmbus_chanmsg_hdr hdr;
+	uint32_t	chanid;
+	uint32_t	openid;
+	uint32_t	status;
+} __rte_packed;
+
+/* VMBUS_CHANMSG_TYPE_GPADL_CONN */
+struct vmbus_chanmsg_gpadl_conn {
+	struct vmbus_chanmsg_hdr hdr;
+	uint32_t	chanid;
+	uint32_t	gpadl;
+	uint16_t	range_len;
+	uint16_t	range_cnt;
+	struct vmbus_gpa_range range;
+} __rte_packed;
+
+#define VMBUS_CHANMSG_GPADL_CONN_PGMAX		26
+
+/* VMBUS_CHANMSG_TYPE_GPADL_SUBCONN */
+struct vmbus_chanmsg_gpadl_subconn {
+	struct vmbus_chanmsg_hdr hdr;
+	uint32_t	msgno;
+	uint32_t	gpadl;
+	uint64_t	gpa_page[];
+} __rte_packed;
+
+#define VMBUS_CHANMSG_GPADL_SUBCONN_PGMAX	28
+
+/* VMBUS_CHANMSG_TYPE_GPADL_CONNRESP */
+struct vmbus_chanmsg_gpadl_connresp {
+	struct vmbus_chanmsg_hdr hdr;
+	uint32_t	chanid;
+	uint32_t	gpadl;
+	uint32_t	status;
+} __rte_packed;
+
+/* VMBUS_CHANMSG_TYPE_CHCLOSE */
+struct vmbus_chanmsg_chclose {
+	struct vmbus_chanmsg_hdr hdr;
+	uint32_t	chanid;
+} __rte_packed;
+
+/* VMBUS_CHANMSG_TYPE_GPADL_DISCONN */
+struct vmbus_chanmsg_gpadl_disconn {
+	struct vmbus_chanmsg_hdr hdr;
+	uint32_t	chanid;
+	uint32_t	gpadl;
+} __rte_packed;
+
+/* VMBUS_CHANMSG_TYPE_CHFREE */
+struct vmbus_chanmsg_chfree {
+	struct vmbus_chanmsg_hdr hdr;
+	uint32_t	chanid;
+} __rte_packed;
+
+/* VMBUS_CHANMSG_TYPE_CHRESCIND */
+struct vmbus_chanmsg_chrescind {
+	struct vmbus_chanmsg_hdr hdr;
+	uint32_t	chanid;
+} __rte_packed;
+
+/* VMBUS_CHANMSG_TYPE_CHOFFER */
+struct vmbus_chanmsg_choffer {
+	struct vmbus_chanmsg_hdr hdr;
+	rte_uuid_t	chtype;
+	rte_uuid_t	chinst;
+	uint64_t	chlat;	/* unit: 100ns */
+	uint32_t	chrev;
+	uint32_t	svrctx_sz;
+	uint16_t	chflags;
+	uint16_t	mmio_sz;	/* unit: MB */
+	uint8_t		udata[120];
+	uint16_t	subidx;
+	uint16_t	rsvd;
+	uint32_t	chanid;
+	uint8_t		montrig;
+	uint8_t		flags1;	/* VMBUS_CHOFFER_FLAG1_ */
+	uint16_t	flags2;
+	uint32_t	connid;
+} __rte_packed;
+
+#define VMBUS_CHOFFER_FLAG1_HASMNF	0x01
+
+#endif	/* !_VMBUS_REG_H_ */
diff --git a/drivers/bus/vmbus/vmbus_bufring.c b/drivers/bus/vmbus/vmbus_bufring.c
new file mode 100644
index 00000000..c8800160
--- /dev/null
+++ b/drivers/bus/vmbus/vmbus_bufring.c
@@ -0,0 +1,244 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright (c) 2009-2012,2016 Microsoft Corp.
+ * Copyright (c) 2012 NetApp Inc.
+ * Copyright (c) 2012 Citrix Inc.
+ * All rights reserved.
+ */
+
+#include <unistd.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include <string.h>
+#include <sys/uio.h>
+
+#include <rte_eal.h>
+#include <rte_tailq.h>
+#include <rte_log.h>
+#include <rte_malloc.h>
+#include <rte_bus.h>
+#include <rte_atomic.h>
+#include <rte_memory.h>
+#include <rte_pause.h>
+#include <rte_bus_vmbus.h>
+
+#include "private.h"
+
+/* Increase bufring index by inc with wraparound */
+static inline uint32_t vmbus_br_idxinc(uint32_t idx, uint32_t inc, uint32_t sz)
+{
+	idx += inc;
+	if (idx >= sz)
+		idx -= sz;
+
+	return idx;
+}
+
+void vmbus_br_setup(struct vmbus_br *br, void *buf, unsigned int blen)
+{
+	br->vbr = buf;
+	br->windex = br->vbr->windex;
+	br->dsize = blen - sizeof(struct vmbus_bufring);
+}
+
+/*
+ * When we write to the ring buffer, check if the host needs to be
+ * signaled.
+ *
+ * The contract:
+ * - The host guarantees that while it is draining the TX bufring,
+ *   it will set the br_imask to indicate it does not need to be
+ *   interrupted when new data are added.
+ * - The host guarantees that it will completely drain the TX bufring
+ *   before exiting the read loop.  Further, once the TX bufring is
+ *   empty, it will clear the br_imask and re-check to see if new
+ *   data have arrived.
+ */
+static inline bool
+vmbus_txbr_need_signal(const struct vmbus_br *tbr, uint32_t old_windex)
+{
+	rte_smp_mb();
+	if (tbr->vbr->imask)
+		return false;
+
+	rte_smp_rmb();
+
+	/*
+	 * This is the only case we need to signal when the
+	 * ring transitions from being empty to non-empty.
+	 */
+	return old_windex == tbr->vbr->rindex;
+}
+
+static inline uint32_t
+vmbus_txbr_copyto(const struct vmbus_br *tbr, uint32_t windex,
+		  const void *src0, uint32_t cplen)
+{
+	uint8_t *br_data = tbr->vbr->data;
+	uint32_t br_dsize = tbr->dsize;
+	const uint8_t *src = src0;
+
+	/* XXX use double mapping like Linux kernel? */
+	if (cplen > br_dsize - windex) {
+		uint32_t fraglen = br_dsize - windex;
+
+		/* Wrap-around detected */
+		memcpy(br_data + windex, src, fraglen);
+		memcpy(br_data, src + fraglen, cplen - fraglen);
+	} else {
+		memcpy(br_data + windex, src, cplen);
+	}
+
+	return vmbus_br_idxinc(windex, cplen, br_dsize);
+}
+
+/*
+ * Write scattered channel packet to TX bufring.
+ *
+ * The offset of this channel packet is written as a 64bits value
+ * immediately after this channel packet.
+ *
+ * The write goes through three stages:
+ *  1. Reserve space in ring buffer for the new data.
+ *     Writer atomically moves priv_write_index.
+ *  2. Copy the new data into the ring.
+ *  3. Update the tail of the ring (visible to host) that indicates
+ *     next read location. Writer updates write_index
+ */
+int
+vmbus_txbr_write(struct vmbus_br *tbr, const struct iovec iov[], int iovlen,
+		 bool *need_sig)
+{
+	struct vmbus_bufring *vbr = tbr->vbr;
+	uint32_t ring_size = tbr->dsize;
+	uint32_t old_windex, next_windex, windex, total;
+	uint64_t save_windex;
+	int i;
+
+	total = 0;
+	for (i = 0; i < iovlen; i++)
+		total += iov[i].iov_len;
+	total += sizeof(save_windex);
+
+	/* Reserve space in ring */
+	do {
+		uint32_t avail;
+
+		/* Get current free location */
+		old_windex = tbr->windex;
+
+		/* Prevent compiler reordering this with calculation */
+		rte_compiler_barrier();
+
+		avail = vmbus_br_availwrite(tbr, old_windex);
+
+		/* If not enough space in ring, then tell caller. */
+		if (avail <= total)
+			return -EAGAIN;
+
+		next_windex = vmbus_br_idxinc(old_windex, total, ring_size);
+
+		/* Atomic update of next write_index for other threads */
+	} while (!rte_atomic32_cmpset(&tbr->windex, old_windex, next_windex));
+
+	/* Space from old..new is now reserved */
+	windex = old_windex;
+	for (i = 0; i < iovlen; i++) {
+		windex = vmbus_txbr_copyto(tbr, windex,
+					   iov[i].iov_base, iov[i].iov_len);
+	}
+
+	/* Set the offset of the current channel packet. */
+	save_windex = ((uint64_t)old_windex) << 32;
+	windex = vmbus_txbr_copyto(tbr, windex, &save_windex,
+				   sizeof(save_windex));
+
+	/* The region reserved should match region used */
+	RTE_ASSERT(windex == next_windex);
+
+	/* Ensure that data is available before updating host index */
+	rte_smp_wmb();
+
+	/* Checkin for our reservation. wait for our turn to update host */
+	while (!rte_atomic32_cmpset(&vbr->windex, old_windex, next_windex))
+		rte_pause();
+
+	/* If host had read all data before this, then need to signal */
+	*need_sig |= vmbus_txbr_need_signal(tbr, old_windex);
+	return 0;
+}
+
+static inline uint32_t
+vmbus_rxbr_copyfrom(const struct vmbus_br *rbr, uint32_t rindex,
+		    void *dst0, size_t cplen)
+{
+	const uint8_t *br_data = rbr->vbr->data;
+	uint32_t br_dsize = rbr->dsize;
+	uint8_t *dst = dst0;
+
+	if (cplen > br_dsize - rindex) {
+		uint32_t fraglen = br_dsize - rindex;
+
+		/* Wrap-around detected. */
+		memcpy(dst, br_data + rindex, fraglen);
+		memcpy(dst + fraglen, br_data, cplen - fraglen);
+	} else {
+		memcpy(dst, br_data + rindex, cplen);
+	}
+
+	return vmbus_br_idxinc(rindex, cplen, br_dsize);
+}
+
+/* Copy data from receive ring but don't change index */
+int
+vmbus_rxbr_peek(const struct vmbus_br *rbr, void *data, size_t dlen)
+{
+	uint32_t avail;
+
+	/*
+	 * The requested data and the 64bits channel packet
+	 * offset should be there at least.
+	 */
+	avail = vmbus_br_availread(rbr);
+	if (avail < dlen + sizeof(uint64_t))
+		return -EAGAIN;
+
+	vmbus_rxbr_copyfrom(rbr, rbr->vbr->rindex, data, dlen);
+	return 0;
+}
+
+/*
+ * Copy data from receive ring and change index
+ * NOTE:
+ * We assume (dlen + skip) == sizeof(channel packet).
+ */
+int
+vmbus_rxbr_read(struct vmbus_br *rbr, void *data, size_t dlen, size_t skip)
+{
+	struct vmbus_bufring *vbr = rbr->vbr;
+	uint32_t br_dsize = rbr->dsize;
+	uint32_t rindex;
+
+	if (vmbus_br_availread(rbr) < dlen + skip + sizeof(uint64_t))
+		return -EAGAIN;
+
+	/* Record where host was when we started read (for debug) */
+	rbr->windex = rbr->vbr->windex;
+
+	/*
+	 * Copy channel packet from RX bufring.
+	 */
+	rindex = vmbus_br_idxinc(rbr->vbr->rindex, skip, br_dsize);
+	rindex = vmbus_rxbr_copyfrom(rbr, rindex, data, dlen);
+
+	/*
+	 * Discard this channel packet's 64bits offset, which is useless to us.
+	 */
+	rindex = vmbus_br_idxinc(rindex, sizeof(uint64_t), br_dsize);
+
+	/* Update the read index _after_ the channel packet is fetched.	 */
+	rte_compiler_barrier();
+
+	vbr->rindex = rindex;
+
+	return 0;
+}
diff --git a/drivers/bus/vmbus/vmbus_channel.c b/drivers/bus/vmbus/vmbus_channel.c
new file mode 100644
index 00000000..cc5f3e83
--- /dev/null
+++ b/drivers/bus/vmbus/vmbus_channel.c
@@ -0,0 +1,405 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright (c) 2018, Microsoft Corporation.
+ * All Rights Reserved.
+ */
+
+#include <unistd.h>
+#include <stdint.h>
+#include <string.h>
+#include <sys/uio.h>
+
+#include <rte_eal.h>
+#include <rte_tailq.h>
+#include <rte_log.h>
+#include <rte_malloc.h>
+#include <rte_bus.h>
+#include <rte_atomic.h>
+#include <rte_memory.h>
+#include <rte_bus_vmbus.h>
+
+#include "private.h"
+
+static inline void
+vmbus_sync_set_bit(volatile uint32_t *addr, uint32_t mask)
+{
+	/* Use GCC builtin which atomic does atomic OR operation */
+	__sync_or_and_fetch(addr, mask);
+}
+
+static inline void
+vmbus_send_interrupt(const struct rte_vmbus_device *dev, uint32_t relid)
+{
+	uint32_t *int_addr;
+	uint32_t int_mask;
+
+	int_addr = dev->int_page + relid / 32;
+	int_mask = 1u << (relid % 32);
+
+	vmbus_sync_set_bit(int_addr, int_mask);
+}
+
+static inline void
+vmbus_set_monitor(const struct rte_vmbus_device *dev, uint32_t monitor_id)
+{
+	uint32_t *monitor_addr, monitor_mask;
+	unsigned int trigger_index;
+
+	trigger_index = monitor_id / HV_MON_TRIG_LEN;
+	monitor_mask = 1u << (monitor_id % HV_MON_TRIG_LEN);
+
+	monitor_addr = &dev->monitor_page->trigs[trigger_index].pending;
+	vmbus_sync_set_bit(monitor_addr, monitor_mask);
+}
+
+static void
+vmbus_set_event(const struct rte_vmbus_device *dev,
+		const struct vmbus_channel *chan)
+{
+	vmbus_send_interrupt(dev, chan->relid);
+	vmbus_set_monitor(dev, chan->monitor_id);
+}
+
+/*
+ * Notify host that there are data pending on our TX bufring.
+ *
+ * Since this in userspace, rely on the monitor page.
+ * Can't do a hypercall from userspace.
+ */
+void
+rte_vmbus_chan_signal_tx(const struct vmbus_channel *chan)
+{
+	const struct rte_vmbus_device *dev = chan->device;
+	const struct vmbus_br *tbr = &chan->txbr;
+
+	/* Make sure all updates are done before signaling host */
+	rte_smp_wmb();
+
+	/* If host is ignoring interrupts? */
+	if (tbr->vbr->imask)
+		return;
+
+	vmbus_set_event(dev, chan);
+}
+
+
+/* Do a simple send directly using transmit ring. */
+int rte_vmbus_chan_send(struct vmbus_channel *chan, uint16_t type,
+			void *data, uint32_t dlen,
+			uint64_t xactid, uint32_t flags, bool *need_sig)
+{
+	struct vmbus_chanpkt pkt;
+	unsigned int pktlen, pad_pktlen;
+	const uint32_t hlen = sizeof(pkt);
+	bool send_evt = false;
+	uint64_t pad = 0;
+	struct iovec iov[3];
+	int error;
+
+	pktlen = hlen + dlen;
+	pad_pktlen = RTE_ALIGN(pktlen, sizeof(uint64_t));
+
+	pkt.hdr.type = type;
+	pkt.hdr.flags = flags;
+	pkt.hdr.hlen = hlen >> VMBUS_CHANPKT_SIZE_SHIFT;
+	pkt.hdr.tlen = pad_pktlen >> VMBUS_CHANPKT_SIZE_SHIFT;
+	pkt.hdr.xactid = xactid;
+
+	iov[0].iov_base = &pkt;
+	iov[0].iov_len = hlen;
+	iov[1].iov_base = data;
+	iov[1].iov_len = dlen;
+	iov[2].iov_base = &pad;
+	iov[2].iov_len = pad_pktlen - pktlen;
+
+	error = vmbus_txbr_write(&chan->txbr, iov, 3, &send_evt);
+
+	/*
+	 * caller sets need_sig to non-NULL if it will handle
+	 * signaling if required later.
+	 * if need_sig is NULL, signal now if needed.
+	 */
+	if (need_sig)
+		*need_sig |= send_evt;
+	else if (error == 0 && send_evt)
+		rte_vmbus_chan_signal_tx(chan);
+	return error;
+}
+
+/* Do a scatter/gather send where the descriptor points to data. */
+int rte_vmbus_chan_send_sglist(struct vmbus_channel *chan,
+			       struct vmbus_gpa sg[], uint32_t sglen,
+			       void *data, uint32_t dlen,
+			       uint64_t xactid, bool *need_sig)
+{
+	struct vmbus_chanpkt_sglist pkt;
+	unsigned int pktlen, pad_pktlen, hlen;
+	bool send_evt = false;
+	struct iovec iov[4];
+	uint64_t pad = 0;
+	int error;
+
+	hlen = offsetof(struct vmbus_chanpkt_sglist, gpa[sglen]);
+	pktlen = hlen + dlen;
+	pad_pktlen = RTE_ALIGN(pktlen, sizeof(uint64_t));
+
+	pkt.hdr.type = VMBUS_CHANPKT_TYPE_GPA;
+	pkt.hdr.flags = VMBUS_CHANPKT_FLAG_RC;
+	pkt.hdr.hlen = hlen >> VMBUS_CHANPKT_SIZE_SHIFT;
+	pkt.hdr.tlen = pad_pktlen >> VMBUS_CHANPKT_SIZE_SHIFT;
+	pkt.hdr.xactid = xactid;
+	pkt.rsvd = 0;
+	pkt.gpa_cnt = sglen;
+
+	iov[0].iov_base = &pkt;
+	iov[0].iov_len = sizeof(pkt);
+	iov[1].iov_base = sg;
+	iov[1].iov_len = sizeof(struct vmbus_gpa) * sglen;
+	iov[2].iov_base = data;
+	iov[2].iov_len = dlen;
+	iov[3].iov_base = &pad;
+	iov[3].iov_len = pad_pktlen - pktlen;
+
+	error = vmbus_txbr_write(&chan->txbr, iov, 4, &send_evt);
+
+	/* if caller is batching, just propagate the status */
+	if (need_sig)
+		*need_sig |= send_evt;
+	else if (error == 0 && send_evt)
+		rte_vmbus_chan_signal_tx(chan);
+	return error;
+}
+
+bool rte_vmbus_chan_rx_empty(const struct vmbus_channel *channel)
+{
+	const struct vmbus_br *br = &channel->rxbr;
+
+	return br->vbr->rindex == br->vbr->windex;
+}
+
+/* Signal host after reading N bytes */
+void rte_vmbus_chan_signal_read(struct vmbus_channel *chan, uint32_t bytes_read)
+{
+	struct vmbus_br *rbr = &chan->rxbr;
+	uint32_t write_sz, pending_sz;
+
+	/* No need for signaling on older versions */
+	if (!rbr->vbr->feature_bits.feat_pending_send_sz)
+		return;
+
+	/* Make sure reading of pending happens after new read index */
+	rte_mb();
+
+	pending_sz = rbr->vbr->pending_send;
+	if (!pending_sz)
+		return;
+
+	rte_smp_rmb();
+	write_sz = vmbus_br_availwrite(rbr, rbr->vbr->windex);
+
+	/* If there was space before then host was not blocked */
+	if (write_sz - bytes_read > pending_sz)
+		return;
+
+	/* If pending write will not fit */
+	if (write_sz <= pending_sz)
+		return;
+
+	vmbus_set_event(chan->device, chan);
+}
+
+int rte_vmbus_chan_recv(struct vmbus_channel *chan, void *data, uint32_t *len,
+			uint64_t *request_id)
+{
+	struct vmbus_chanpkt_hdr pkt;
+	uint32_t dlen, hlen, bufferlen = *len;
+	int error;
+
+	*len = 0;
+
+	error = vmbus_rxbr_peek(&chan->rxbr, &pkt, sizeof(pkt));
+	if (error)
+		return error;
+
+	if (unlikely(pkt.hlen < VMBUS_CHANPKT_HLEN_MIN)) {
+		VMBUS_LOG(ERR, "VMBUS recv, invalid hlen %u", pkt.hlen);
+		/* XXX this channel is dead actually. */
+		return -EIO;
+	}
+
+	if (unlikely(pkt.hlen > pkt.tlen)) {
+		VMBUS_LOG(ERR, "VMBUS recv,invalid hlen %u and tlen %u",
+			  pkt.hlen, pkt.tlen);
+		return -EIO;
+	}
+
+	/* Length are in quad words */
+	hlen = pkt.hlen << VMBUS_CHANPKT_SIZE_SHIFT;
+	dlen = (pkt.tlen << VMBUS_CHANPKT_SIZE_SHIFT) - hlen;
+	*len = dlen;
+
+	/* If caller buffer is not large enough */
+	if (unlikely(dlen > bufferlen))
+		return -ENOBUFS;
+
+	if (request_id)
+		*request_id = pkt.xactid;
+
+	/* Read data and skip packet header */
+	error = vmbus_rxbr_read(&chan->rxbr, data, dlen, hlen);
+	if (error)
+		return error;
+
+	rte_vmbus_chan_signal_read(chan, dlen + hlen + sizeof(uint64_t));
+	return 0;
+}
+
+/* TODO: replace this with inplace ring buffer (no copy) */
+int rte_vmbus_chan_recv_raw(struct vmbus_channel *chan,
+			    void *data, uint32_t *len)
+{
+	struct vmbus_chanpkt_hdr pkt;
+	uint32_t dlen, bufferlen = *len;
+	int error;
+
+	error = vmbus_rxbr_peek(&chan->rxbr, &pkt, sizeof(pkt));
+	if (error)
+		return error;
+
+	if (unlikely(pkt.hlen < VMBUS_CHANPKT_HLEN_MIN)) {
+		VMBUS_LOG(ERR, "VMBUS recv, invalid hlen %u", pkt.hlen);
+		/* XXX this channel is dead actually. */
+		return -EIO;
+	}
+
+	if (unlikely(pkt.hlen > pkt.tlen)) {
+		VMBUS_LOG(ERR, "VMBUS recv,invalid hlen %u and tlen %u",
+			pkt.hlen, pkt.tlen);
+		return -EIO;
+	}
+
+	/* Length are in quad words */
+	dlen = pkt.tlen << VMBUS_CHANPKT_SIZE_SHIFT;
+	*len = dlen;
+
+	/* If caller buffer is not large enough */
+	if (unlikely(dlen > bufferlen))
+		return -ENOBUFS;
+
+	/* Read data and skip packet header */
+	error = vmbus_rxbr_read(&chan->rxbr, data, dlen, 0);
+	if (error)
+		return error;
+
+	/* Return the number of bytes read */
+	return dlen + sizeof(uint64_t);
+}
+
+int vmbus_chan_create(const struct rte_vmbus_device *device,
+		      uint16_t relid, uint16_t subid, uint8_t monitor_id,
+		      struct vmbus_channel **new_chan)
+{
+	struct vmbus_channel *chan;
+	int err;
+
+	chan = rte_zmalloc_socket("VMBUS", sizeof(*chan), RTE_CACHE_LINE_SIZE,
+				  device->device.numa_node);
+	if (!chan)
+		return -ENOMEM;
+
+	STAILQ_INIT(&chan->subchannel_list);
+	chan->device = device;
+	chan->subchannel_id = subid;
+	chan->relid = relid;
+	chan->monitor_id = monitor_id;
+	*new_chan = chan;
+
+	err = vmbus_uio_map_rings(chan);
+	if (err) {
+		rte_free(chan);
+		return err;
+	}
+
+	return 0;
+}
+
+/* Setup the primary channel */
+int rte_vmbus_chan_open(struct rte_vmbus_device *device,
+			struct vmbus_channel **new_chan)
+{
+	int err;
+
+	err = vmbus_chan_create(device, device->relid, 0,
+				device->monitor_id, new_chan);
+	if (!err)
+		device->primary = *new_chan;
+
+	return err;
+}
+
+int rte_vmbus_max_channels(const struct rte_vmbus_device *device)
+{
+	if (vmbus_uio_subchannels_supported(device, device->primary))
+		return VMBUS_MAX_CHANNELS;
+	else
+		return 1;
+}
+
+/* Setup secondary channel */
+int rte_vmbus_subchan_open(struct vmbus_channel *primary,
+			   struct vmbus_channel **new_chan)
+{
+	struct vmbus_channel *chan;
+	int err;
+
+	err = vmbus_uio_get_subchan(primary, &chan);
+	if (err)
+		return err;
+
+	STAILQ_INSERT_TAIL(&primary->subchannel_list, chan, next);
+	*new_chan = chan;
+	return 0;
+}
+
+uint16_t rte_vmbus_sub_channel_index(const struct vmbus_channel *chan)
+{
+	return chan->subchannel_id;
+}
+
+void rte_vmbus_chan_close(struct vmbus_channel *chan)
+{
+	const struct rte_vmbus_device *device = chan->device;
+	struct vmbus_channel *primary = device->primary;
+
+	if (chan != primary)
+		STAILQ_REMOVE(&primary->subchannel_list, chan,
+			      vmbus_channel, next);
+
+	rte_free(chan);
+}
+
+static void vmbus_dump_ring(FILE *f, const char *id, const struct vmbus_br *br)
+{
+	const struct vmbus_bufring *vbr = br->vbr;
+	struct vmbus_chanpkt_hdr pkt;
+
+	fprintf(f, "%s windex=%u rindex=%u mask=%u pending=%u feature=%#x\n",
+		id, vbr->windex, vbr->rindex, vbr->imask,
+		vbr->pending_send, vbr->feature_bits.value);
+	fprintf(f, " size=%u avail write=%u read=%u\n",
+		br->dsize, vmbus_br_availwrite(br, vbr->windex),
+		vmbus_br_availread(br));
+
+	if (vmbus_rxbr_peek(br, &pkt, sizeof(pkt)) == 0)
+		fprintf(f, "  pkt type %#x len %u flags %#x xactid %#"PRIx64"\n",
+			pkt.type,
+			pkt.tlen << VMBUS_CHANPKT_SIZE_SHIFT,
+			pkt.flags, pkt.xactid);
+}
+
+void rte_vmbus_chan_dump(FILE *f, const struct vmbus_channel *chan)
+{
+	fprintf(f, "channel[%u] relid=%u monitor=%u\n",
+		chan->subchannel_id, chan->relid, chan->monitor_id);
+	vmbus_dump_ring(f, "rxbr", &chan->rxbr);
+	vmbus_dump_ring(f, "txbr", &chan->txbr);
+}
diff --git a/drivers/bus/vmbus/vmbus_common.c b/drivers/bus/vmbus/vmbus_common.c
new file mode 100644
index 00000000..c7165ad5
--- /dev/null
+++ b/drivers/bus/vmbus/vmbus_common.c
@@ -0,0 +1,286 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright (c) 2018, Microsoft Corporation.
+ * All Rights Reserved.
+ */
+
+#include <string.h>
+#include <unistd.h>
+#include <dirent.h>
+#include <fcntl.h>
+#include <sys/queue.h>
+#include <sys/mman.h>
+
+#include <rte_log.h>
+#include <rte_bus.h>
+#include <rte_eal.h>
+#include <rte_tailq.h>
+#include <rte_devargs.h>
+#include <rte_malloc.h>
+#include <rte_errno.h>
+#include <rte_memory.h>
+#include <rte_bus_vmbus.h>
+
+#include "private.h"
+
+int vmbus_logtype_bus;
+extern struct rte_vmbus_bus rte_vmbus_bus;
+
+/* map a particular resource from a file */
+void *
+vmbus_map_resource(void *requested_addr, int fd, off_t offset, size_t size,
+		   int flags)
+{
+	void *mapaddr;
+
+	/* Map the memory resource of device */
+	mapaddr = mmap(requested_addr, size, PROT_READ | PROT_WRITE,
+		       MAP_SHARED | flags, fd, offset);
+	if (mapaddr == MAP_FAILED) {
+		VMBUS_LOG(ERR,
+			  "mmap(%d, %p, %zu, %ld) failed: %s",
+			  fd, requested_addr, size, (long)offset,
+			  strerror(errno));
+	}
+	return mapaddr;
+}
+
+/* unmap a particular resource */
+void
+vmbus_unmap_resource(void *requested_addr, size_t size)
+{
+	if (requested_addr == NULL)
+		return;
+
+	/* Unmap the VMBUS memory resource of device */
+	if (munmap(requested_addr, size)) {
+		VMBUS_LOG(ERR, "munmap(%p, 0x%lx) failed: %s",
+			requested_addr, (unsigned long)size,
+			strerror(errno));
+	} else
+		VMBUS_LOG(DEBUG, "  VMBUS memory unmapped at %p",
+			  requested_addr);
+}
+
+/**
+ * Match the VMBUS driver and device using UUID table
+ *
+ * @param drv
+ *	VMBUS driver from which ID table would be extracted
+ * @param pci_dev
+ *	VMBUS device to match against the driver
+ * @return
+ *	true for successful match
+ *	false for unsuccessful match
+ */
+static bool
+vmbus_match(const struct rte_vmbus_driver *dr,
+	    const struct rte_vmbus_device *dev)
+{
+	const rte_uuid_t *id_table;
+
+	for (id_table = dr->id_table; !rte_uuid_is_null(*id_table); ++id_table) {
+		if (rte_uuid_compare(*id_table, dev->class_id) == 0)
+			return true;
+	}
+
+	return false;
+}
+
+/*
+ * If device ID match, call the devinit() function of the driver.
+ */
+static int
+vmbus_probe_one_driver(struct rte_vmbus_driver *dr,
+		       struct rte_vmbus_device *dev)
+{
+	char guid[RTE_UUID_STRLEN];
+	int ret;
+
+	if (!vmbus_match(dr, dev))
+		return 1;	 /* not supported */
+
+	rte_uuid_unparse(dev->device_id, guid, sizeof(guid));
+	VMBUS_LOG(INFO, "VMBUS device %s on NUMA socket %i",
+		  guid, dev->device.numa_node);
+
+	/* TODO add blacklisted */
+
+	/* map resources for device */
+	ret = rte_vmbus_map_device(dev);
+	if (ret != 0)
+		return ret;
+
+	/* reference driver structure */
+	dev->driver = dr;
+	dev->device.driver = &dr->driver;
+
+	if (dev->device.numa_node < 0) {
+		VMBUS_LOG(WARNING, "  Invalid NUMA socket, default to 0");
+		dev->device.numa_node = 0;
+	}
+
+	/* call the driver probe() function */
+	VMBUS_LOG(INFO, "  probe driver: %s", dr->driver.name);
+	ret = dr->probe(dr, dev);
+	if (ret) {
+		dev->driver = NULL;
+		rte_vmbus_unmap_device(dev);
+	}
+
+	return ret;
+}
+
+/*
+ * IF device class GUID mathces, call the probe function of
+ * registere drivers for the vmbus device.
+ * Return -1 if initialization failed,
+ * and 1 if no driver found for this device.
+ */
+static int
+vmbus_probe_all_drivers(struct rte_vmbus_device *dev)
+{
+	struct rte_vmbus_driver *dr;
+	int rc;
+
+	/* Check if a driver is already loaded */
+	if (dev->driver != NULL) {
+		VMBUS_LOG(DEBUG, "VMBUS driver already loaded");
+		return 0;
+	}
+
+	FOREACH_DRIVER_ON_VMBUS(dr) {
+		rc = vmbus_probe_one_driver(dr, dev);
+		if (rc < 0) /* negative is an error */
+			return -1;
+
+		if (rc > 0) /* positive driver doesn't support it */
+			continue;
+
+		return 0;
+	}
+	return 1;
+}
+
+/*
+ * Scan the vmbus, and call the devinit() function for
+ * all registered drivers that have a matching entry in its id_table
+ * for discovered devices.
+ */
+int
+rte_vmbus_probe(void)
+{
+	struct rte_vmbus_device *dev;
+	size_t probed = 0, failed = 0;
+	char ubuf[RTE_UUID_STRLEN];
+
+	FOREACH_DEVICE_ON_VMBUS(dev) {
+		probed++;
+
+		rte_uuid_unparse(dev->device_id, ubuf, sizeof(ubuf));
+
+		/* TODO: add whitelist/blacklist */
+
+		if (vmbus_probe_all_drivers(dev) < 0) {
+			VMBUS_LOG(NOTICE,
+				"Requested device %s cannot be used", ubuf);
+			rte_errno = errno;
+			failed++;
+		}
+	}
+
+	return (probed && probed == failed) ? -1 : 0;
+}
+
+static int
+vmbus_parse(const char *name, void *addr)
+{
+	rte_uuid_t guid;
+	int ret;
+
+	ret = rte_uuid_parse(name, guid);
+	if (ret == 0 && addr)
+		memcpy(addr, &guid, sizeof(guid));
+
+	return ret;
+}
+
+/* register vmbus driver */
+void
+rte_vmbus_register(struct rte_vmbus_driver *driver)
+{
+	VMBUS_LOG(DEBUG,
+		"Registered driver %s", driver->driver.name);
+
+	TAILQ_INSERT_TAIL(&rte_vmbus_bus.driver_list, driver, next);
+	driver->bus = &rte_vmbus_bus;
+}
+
+/* unregister vmbus driver */
+void
+rte_vmbus_unregister(struct rte_vmbus_driver *driver)
+{
+	TAILQ_REMOVE(&rte_vmbus_bus.driver_list, driver, next);
+	driver->bus = NULL;
+}
+
+/* Add a device to VMBUS bus */
+void
+vmbus_add_device(struct rte_vmbus_device *vmbus_dev)
+{
+	TAILQ_INSERT_TAIL(&rte_vmbus_bus.device_list, vmbus_dev, next);
+}
+
+/* Insert a device into a predefined position in VMBUS bus */
+void
+vmbus_insert_device(struct rte_vmbus_device *exist_vmbus_dev,
+		      struct rte_vmbus_device *new_vmbus_dev)
+{
+	TAILQ_INSERT_BEFORE(exist_vmbus_dev, new_vmbus_dev, next);
+}
+
+/* Remove a device from VMBUS bus */
+void
+vmbus_remove_device(struct rte_vmbus_device *vmbus_dev)
+{
+	TAILQ_REMOVE(&rte_vmbus_bus.device_list, vmbus_dev, next);
+}
+
+/* VMBUS doesn't support hotplug */
+static struct rte_device *
+vmbus_find_device(const struct rte_device *start, rte_dev_cmp_t cmp,
+		  const void *data)
+{
+	struct rte_vmbus_device *dev;
+
+	FOREACH_DEVICE_ON_VMBUS(dev) {
+		if (start && &dev->device == start) {
+			start = NULL;
+			continue;
+		}
+		if (cmp(&dev->device, data) == 0)
+			return &dev->device;
+	}
+
+	return NULL;
+}
+
+
+struct rte_vmbus_bus rte_vmbus_bus = {
+	.bus = {
+		.scan = rte_vmbus_scan,
+		.probe = rte_vmbus_probe,
+		.find_device = vmbus_find_device,
+		.parse = vmbus_parse,
+	},
+	.device_list = TAILQ_HEAD_INITIALIZER(rte_vmbus_bus.device_list),
+	.driver_list = TAILQ_HEAD_INITIALIZER(rte_vmbus_bus.driver_list),
+};
+
+RTE_REGISTER_BUS(vmbus, rte_vmbus_bus.bus);
+
+RTE_INIT(vmbus_init_log)
+{
+	vmbus_logtype_bus = rte_log_register("bus.vmbus");
+	if (vmbus_logtype_bus >= 0)
+		rte_log_set_level(vmbus_logtype_bus, RTE_LOG_NOTICE);
+}
diff --git a/drivers/bus/vmbus/vmbus_common_uio.c b/drivers/bus/vmbus/vmbus_common_uio.c
new file mode 100644
index 00000000..5ddd36ab
--- /dev/null
+++ b/drivers/bus/vmbus/vmbus_common_uio.c
@@ -0,0 +1,232 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright (c) 2018, Microsoft Corporation.
+ * All Rights Reserved.
+ */
+
+#include <fcntl.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/mman.h>
+
+#include <rte_eal.h>
+#include <rte_tailq.h>
+#include <rte_log.h>
+#include <rte_malloc.h>
+#include <rte_bus.h>
+#include <rte_bus_vmbus.h>
+
+#include "private.h"
+
+static struct rte_tailq_elem vmbus_tailq = {
+	.name = "VMBUS_RESOURCE_LIST",
+};
+EAL_REGISTER_TAILQ(vmbus_tailq)
+
+static int
+vmbus_uio_map_secondary(struct rte_vmbus_device *dev)
+{
+	int fd, i;
+	struct mapped_vmbus_resource *uio_res;
+	struct mapped_vmbus_res_list *uio_res_list
+		= RTE_TAILQ_CAST(vmbus_tailq.head, mapped_vmbus_res_list);
+
+	TAILQ_FOREACH(uio_res, uio_res_list, next) {
+
+		/* skip this element if it doesn't match our UUID */
+		if (rte_uuid_compare(uio_res->id, dev->device_id) != 0)
+			continue;
+
+		/* open /dev/uioX */
+		fd = open(uio_res->path, O_RDWR);
+		if (fd < 0) {
+			VMBUS_LOG(ERR, "Cannot open %s: %s",
+				  uio_res->path, strerror(errno));
+			return -1;
+		}
+
+		for (i = 0; i != uio_res->nb_maps; i++) {
+			void *mapaddr;
+
+			mapaddr = vmbus_map_resource(uio_res->maps[i].addr,
+						     fd, 0,
+						     uio_res->maps[i].size, 0);
+
+			if (mapaddr == uio_res->maps[i].addr)
+				continue;
+
+			VMBUS_LOG(ERR,
+				  "Cannot mmap device resource file %s to address: %p",
+				  uio_res->path, uio_res->maps[i].addr);
+
+			if (mapaddr != MAP_FAILED)
+				/* unmap addr wrongly mapped */
+				vmbus_unmap_resource(mapaddr,
+						     (size_t)uio_res->maps[i].size);
+
+			/* unmap addrs correctly mapped */
+			while (--i >= 0)
+				vmbus_unmap_resource(uio_res->maps[i].addr,
+						     (size_t)uio_res->maps[i].size);
+
+			close(fd);
+			return -1;
+		}
+
+		/* fd is not needed in slave process, close it */
+		close(fd);
+		return 0;
+	}
+
+	VMBUS_LOG(ERR,  "Cannot find resource for device");
+	return 1;
+}
+
+static int
+vmbus_uio_map_primary(struct rte_vmbus_device *dev)
+{
+	int i, ret;
+	struct mapped_vmbus_resource *uio_res = NULL;
+	struct mapped_vmbus_res_list *uio_res_list =
+		RTE_TAILQ_CAST(vmbus_tailq.head, mapped_vmbus_res_list);
+
+	/* allocate uio resource */
+	ret = vmbus_uio_alloc_resource(dev, &uio_res);
+	if (ret)
+		return ret;
+
+	/* Map the resources */
+	for (i = 0; i < VMBUS_MAX_RESOURCE; i++) {
+		/* skip empty BAR */
+		if (dev->resource[i].len == 0)
+			continue;
+
+		ret = vmbus_uio_map_resource_by_index(dev, i, uio_res, 0);
+		if (ret)
+			goto error;
+	}
+
+	uio_res->nb_maps = i;
+
+	TAILQ_INSERT_TAIL(uio_res_list, uio_res, next);
+
+	return 0;
+error:
+	while (--i >= 0) {
+		vmbus_unmap_resource(uio_res->maps[i].addr,
+				(size_t)uio_res->maps[i].size);
+	}
+	vmbus_uio_free_resource(dev, uio_res);
+	return -1;
+}
+
+
+struct mapped_vmbus_resource *
+vmbus_uio_find_resource(const struct rte_vmbus_device *dev)
+{
+	struct mapped_vmbus_resource *uio_res;
+	struct mapped_vmbus_res_list *uio_res_list =
+			RTE_TAILQ_CAST(vmbus_tailq.head, mapped_vmbus_res_list);
+
+	if (dev == NULL)
+		return NULL;
+
+	TAILQ_FOREACH(uio_res, uio_res_list, next) {
+		/* skip this element if it doesn't match our VMBUS address */
+		if (rte_uuid_compare(uio_res->id, dev->device_id) == 0)
+			return uio_res;
+	}
+	return NULL;
+}
+
+/* map the VMBUS resource of a VMBUS device in virtual memory */
+int
+vmbus_uio_map_resource(struct rte_vmbus_device *dev)
+{
+	struct mapped_vmbus_resource *uio_res;
+	int ret;
+
+	/* TODO: handle rescind */
+	dev->intr_handle.fd = -1;
+	dev->intr_handle.uio_cfg_fd = -1;
+	dev->intr_handle.type = RTE_INTR_HANDLE_UNKNOWN;
+
+	/* secondary processes - use already recorded details */
+	if (rte_eal_process_type() != RTE_PROC_PRIMARY)
+		ret = vmbus_uio_map_secondary(dev);
+	else
+		ret = vmbus_uio_map_primary(dev);
+
+	if (ret != 0)
+		return ret;
+
+	uio_res = vmbus_uio_find_resource(dev);
+	if (!uio_res) {
+		VMBUS_LOG(ERR, "can not find resources!");
+		return -EIO;
+	}
+
+	if (uio_res->nb_maps <= HV_MON_PAGE_MAP) {
+		VMBUS_LOG(ERR, "VMBUS: only %u resources found!",
+			uio_res->nb_maps);
+		return -EINVAL;
+	}
+
+	dev->int_page = (uint32_t *)((char *)uio_res->maps[HV_INT_PAGE_MAP].addr
+				     + (PAGE_SIZE >> 1));
+	dev->monitor_page = uio_res->maps[HV_MON_PAGE_MAP].addr;
+	return 0;
+}
+
+static void
+vmbus_uio_unmap(struct mapped_vmbus_resource *uio_res)
+{
+	int i;
+
+	if (uio_res == NULL)
+		return;
+
+	for (i = 0; i != uio_res->nb_maps; i++) {
+		vmbus_unmap_resource(uio_res->maps[i].addr,
+				     (size_t)uio_res->maps[i].size);
+	}
+}
+
+/* unmap the VMBUS resource of a VMBUS device in virtual memory */
+void
+vmbus_uio_unmap_resource(struct rte_vmbus_device *dev)
+{
+	struct mapped_vmbus_resource *uio_res;
+	struct mapped_vmbus_res_list *uio_res_list =
+			RTE_TAILQ_CAST(vmbus_tailq.head, mapped_vmbus_res_list);
+
+	if (dev == NULL)
+		return;
+
+	/* find an entry for the device */
+	uio_res = vmbus_uio_find_resource(dev);
+	if (uio_res == NULL)
+		return;
+
+	/* secondary processes - just free maps */
+	if (rte_eal_process_type() != RTE_PROC_PRIMARY)
+		return vmbus_uio_unmap(uio_res);
+
+	TAILQ_REMOVE(uio_res_list, uio_res, next);
+
+	/* unmap all resources */
+	vmbus_uio_unmap(uio_res);
+
+	/* free uio resource */
+	rte_free(uio_res);
+
+	/* close fd if in primary process */
+	close(dev->intr_handle.fd);
+	if (dev->intr_handle.uio_cfg_fd >= 0) {
+		close(dev->intr_handle.uio_cfg_fd);
+		dev->intr_handle.uio_cfg_fd = -1;
+	}
+
+	dev->intr_handle.fd = -1;
+	dev->intr_handle.type = RTE_INTR_HANDLE_UNKNOWN;
+}