16 files changed, 843 insertions, 16 deletions

diff --git a/drivers/net/ethernet/netronome/nfp/abm/ctrl.c b/drivers/net/ethernet/netronome/nfp/abm/ctrl.c
index e40f6f06417b..b157ccd8c80f 100644
--- a/drivers/net/ethernet/netronome/nfp/abm/ctrl.c
+++ b/drivers/net/ethernet/netronome/nfp/abm/ctrl.c
@@ -35,24 +35,299 @@
 #include <linux/kernel.h>
 
 #include "../nfpcore/nfp_cpp.h"
+#include "../nfpcore/nfp_nffw.h"
 #include "../nfp_app.h"
+#include "../nfp_abi.h"
 #include "../nfp_main.h"
 #include "../nfp_net.h"
 #include "main.h"
 
+#define NFP_QLVL_SYM_NAME	"_abi_nfd_out_q_lvls_%u"
+#define NFP_QLVL_STRIDE		16
+#define NFP_QLVL_BLOG_BYTES	0
+#define NFP_QLVL_BLOG_PKTS	4
+#define NFP_QLVL_THRS		8
+
+#define NFP_QMSTAT_SYM_NAME	"_abi_nfdqm%u_stats"
+#define NFP_QMSTAT_STRIDE	32
+#define NFP_QMSTAT_NON_STO	0
+#define NFP_QMSTAT_STO		8
+#define NFP_QMSTAT_DROP		16
+#define NFP_QMSTAT_ECN		24
+
+static unsigned long long
+nfp_abm_q_lvl_thrs(struct nfp_abm_link *alink, unsigned int queue)
+{
+	return alink->abm->q_lvls->addr +
+		(alink->queue_base + queue) * NFP_QLVL_STRIDE + NFP_QLVL_THRS;
+}
+
+static int
+nfp_abm_ctrl_stat(struct nfp_abm_link *alink, const struct nfp_rtsym *sym,
+		  unsigned int stride, unsigned int offset, unsigned int i,
+		  bool is_u64, u64 *res)
+{
+	struct nfp_cpp *cpp = alink->abm->app->cpp;
+	u32 val32, mur;
+	u64 val, addr;
+	int err;
+
+	mur = NFP_CPP_ATOMIC_RD(sym->target, sym->domain);
+
+	addr = sym->addr + (alink->queue_base + i) * stride + offset;
+	if (is_u64)
+		err = nfp_cpp_readq(cpp, mur, addr, &val);
+	else
+		err = nfp_cpp_readl(cpp, mur, addr, &val32);
+	if (err) {
+		nfp_err(cpp,
+			"RED offload reading stat failed on vNIC %d queue %d\n",
+			alink->id, i);
+		return err;
+	}
+
+	*res = is_u64 ? val : val32;
+	return 0;
+}
+
+static int
+nfp_abm_ctrl_stat_all(struct nfp_abm_link *alink, const struct nfp_rtsym *sym,
+		      unsigned int stride, unsigned int offset, bool is_u64,
+		      u64 *res)
+{
+	u64 val, sum = 0;
+	unsigned int i;
+	int err;
+
+	for (i = 0; i < alink->vnic->max_rx_rings; i++) {
+		err = nfp_abm_ctrl_stat(alink, sym, stride, offset, i,
+					is_u64, &val);
+		if (err)
+			return err;
+		sum += val;
+	}
+
+	*res = sum;
+	return 0;
+}
+
+int nfp_abm_ctrl_set_q_lvl(struct nfp_abm_link *alink, unsigned int i, u32 val)
+{
+	struct nfp_cpp *cpp = alink->abm->app->cpp;
+	u32 muw;
+	int err;
+
+	muw = NFP_CPP_ATOMIC_WR(alink->abm->q_lvls->target,
+				alink->abm->q_lvls->domain);
+
+	err = nfp_cpp_writel(cpp, muw, nfp_abm_q_lvl_thrs(alink, i), val);
+	if (err) {
+		nfp_err(cpp, "RED offload setting level failed on vNIC %d queue %d\n",
+			alink->id, i);
+		return err;
+	}
+
+	return 0;
+}
+
+int nfp_abm_ctrl_set_all_q_lvls(struct nfp_abm_link *alink, u32 val)
+{
+	int i, err;
+
+	for (i = 0; i < alink->vnic->max_rx_rings; i++) {
+		err = nfp_abm_ctrl_set_q_lvl(alink, i, val);
+		if (err)
+			return err;
+	}
+
+	return 0;
+}
+
+u64 nfp_abm_ctrl_stat_non_sto(struct nfp_abm_link *alink, unsigned int i)
+{
+	u64 val;
+
+	if (nfp_abm_ctrl_stat(alink, alink->abm->qm_stats, NFP_QMSTAT_STRIDE,
+			      NFP_QMSTAT_NON_STO, i, true, &val))
+		return 0;
+	return val;
+}
+
+u64 nfp_abm_ctrl_stat_sto(struct nfp_abm_link *alink, unsigned int i)
+{
+	u64 val;
+
+	if (nfp_abm_ctrl_stat(alink, alink->abm->qm_stats, NFP_QMSTAT_STRIDE,
+			      NFP_QMSTAT_STO, i, true, &val))
+		return 0;
+	return val;
+}
+
+int nfp_abm_ctrl_read_q_stats(struct nfp_abm_link *alink, unsigned int i,
+			      struct nfp_alink_stats *stats)
+{
+	int err;
+
+	stats->tx_pkts = nn_readq(alink->vnic, NFP_NET_CFG_RXR_STATS(i));
+	stats->tx_bytes = nn_readq(alink->vnic, NFP_NET_CFG_RXR_STATS(i) + 8);
+
+	err = nfp_abm_ctrl_stat(alink, alink->abm->q_lvls,
+				NFP_QLVL_STRIDE, NFP_QLVL_BLOG_BYTES,
+				i, false, &stats->backlog_bytes);
+	if (err)
+		return err;
+
+	err = nfp_abm_ctrl_stat(alink, alink->abm->q_lvls,
+				NFP_QLVL_STRIDE, NFP_QLVL_BLOG_PKTS,
+				i, false, &stats->backlog_pkts);
+	if (err)
+		return err;
+
+	err = nfp_abm_ctrl_stat(alink, alink->abm->qm_stats,
+				NFP_QMSTAT_STRIDE, NFP_QMSTAT_DROP,
+				i, true, &stats->drops);
+	if (err)
+		return err;
+
+	return nfp_abm_ctrl_stat(alink, alink->abm->qm_stats,
+				 NFP_QMSTAT_STRIDE, NFP_QMSTAT_ECN,
+				 i, true, &stats->overlimits);
+}
+
+int nfp_abm_ctrl_read_stats(struct nfp_abm_link *alink,
+			    struct nfp_alink_stats *stats)
+{
+	u64 pkts = 0, bytes = 0;
+	int i, err;
+
+	for (i = 0; i < alink->vnic->max_rx_rings; i++) {
+		pkts += nn_readq(alink->vnic, NFP_NET_CFG_RXR_STATS(i));
+		bytes += nn_readq(alink->vnic, NFP_NET_CFG_RXR_STATS(i) + 8);
+	}
+	stats->tx_pkts = pkts;
+	stats->tx_bytes = bytes;
+
+	err = nfp_abm_ctrl_stat_all(alink, alink->abm->q_lvls,
+				    NFP_QLVL_STRIDE, NFP_QLVL_BLOG_BYTES,
+				    false, &stats->backlog_bytes);
+	if (err)
+		return err;
+
+	err = nfp_abm_ctrl_stat_all(alink, alink->abm->q_lvls,
+				    NFP_QLVL_STRIDE, NFP_QLVL_BLOG_PKTS,
+				    false, &stats->backlog_pkts);
+	if (err)
+		return err;
+
+	err = nfp_abm_ctrl_stat_all(alink, alink->abm->qm_stats,
+				    NFP_QMSTAT_STRIDE, NFP_QMSTAT_DROP,
+				    true, &stats->drops);
+	if (err)
+		return err;
+
+	return nfp_abm_ctrl_stat_all(alink, alink->abm->qm_stats,
+				     NFP_QMSTAT_STRIDE, NFP_QMSTAT_ECN,
+				     true, &stats->overlimits);
+}
+
+int nfp_abm_ctrl_read_q_xstats(struct nfp_abm_link *alink, unsigned int i,
+			       struct nfp_alink_xstats *xstats)
+{
+	int err;
+
+	err = nfp_abm_ctrl_stat(alink, alink->abm->qm_stats,
+				NFP_QMSTAT_STRIDE, NFP_QMSTAT_DROP,
+				i, true, &xstats->pdrop);
+	if (err)
+		return err;
+
+	return nfp_abm_ctrl_stat(alink, alink->abm->qm_stats,
+				 NFP_QMSTAT_STRIDE, NFP_QMSTAT_ECN,
+				 i, true, &xstats->ecn_marked);
+}
+
+int nfp_abm_ctrl_read_xstats(struct nfp_abm_link *alink,
+			     struct nfp_alink_xstats *xstats)
+{
+	int err;
+
+	err = nfp_abm_ctrl_stat_all(alink, alink->abm->qm_stats,
+				    NFP_QMSTAT_STRIDE, NFP_QMSTAT_DROP,
+				    true, &xstats->pdrop);
+	if (err)
+		return err;
+
+	return nfp_abm_ctrl_stat_all(alink, alink->abm->qm_stats,
+				     NFP_QMSTAT_STRIDE, NFP_QMSTAT_ECN,
+				     true, &xstats->ecn_marked);
+}
+
+int nfp_abm_ctrl_qm_enable(struct nfp_abm *abm)
+{
+	return nfp_mbox_cmd(abm->app->pf, NFP_MBOX_PCIE_ABM_ENABLE,
+			    NULL, 0, NULL, 0);
+}
+
+int nfp_abm_ctrl_qm_disable(struct nfp_abm *abm)
+{
+	return nfp_mbox_cmd(abm->app->pf, NFP_MBOX_PCIE_ABM_DISABLE,
+			    NULL, 0, NULL, 0);
+}
+
 void nfp_abm_ctrl_read_params(struct nfp_abm_link *alink)
 {
 	alink->queue_base = nn_readl(alink->vnic, NFP_NET_CFG_START_RXQ);
 	alink->queue_base /= alink->vnic->stride_rx;
 }
 
+static const struct nfp_rtsym *
+nfp_abm_ctrl_find_rtsym(struct nfp_pf *pf, const char *name, unsigned int size)
+{
+	const struct nfp_rtsym *sym;
+
+	sym = nfp_rtsym_lookup(pf->rtbl, name);
+	if (!sym) {
+		nfp_err(pf->cpp, "Symbol '%s' not found\n", name);
+		return ERR_PTR(-ENOENT);
+	}
+	if (sym->size != size) {
+		nfp_err(pf->cpp,
+			"Symbol '%s' wrong size: expected %u got %llu\n",
+			name, size, sym->size);
+		return ERR_PTR(-EINVAL);
+	}
+
+	return sym;
+}
+
+static const struct nfp_rtsym *
+nfp_abm_ctrl_find_q_rtsym(struct nfp_pf *pf, const char *name,
+			  unsigned int size)
+{
+	return nfp_abm_ctrl_find_rtsym(pf, name, size * NFP_NET_MAX_RX_RINGS);
+}
+
 int nfp_abm_ctrl_find_addrs(struct nfp_abm *abm)
 {
 	struct nfp_pf *pf = abm->app->pf;
+	const struct nfp_rtsym *sym;
 	unsigned int pf_id;
+	char pf_symbol[64];
 
 	pf_id =	nfp_cppcore_pcie_unit(pf->cpp);
 	abm->pf_id = pf_id;
 
+	snprintf(pf_symbol, sizeof(pf_symbol), NFP_QLVL_SYM_NAME, pf_id);
+	sym = nfp_abm_ctrl_find_q_rtsym(pf, pf_symbol, NFP_QLVL_STRIDE);
+	if (IS_ERR(sym))
+		return PTR_ERR(sym);
+	abm->q_lvls = sym;
+
+	snprintf(pf_symbol, sizeof(pf_symbol), NFP_QMSTAT_SYM_NAME, pf_id);
+	sym = nfp_abm_ctrl_find_q_rtsym(pf, pf_symbol, NFP_QMSTAT_STRIDE);
+	if (IS_ERR(sym))
+		return PTR_ERR(sym);
+	abm->qm_stats = sym;
+
 	return 0;
 }
diff --git a/drivers/net/ethernet/netronome/nfp/abm/main.c b/drivers/net/ethernet/netronome/nfp/abm/main.c
index 5a12bb20bced..1561c2724c26 100644
--- a/drivers/net/ethernet/netronome/nfp/abm/main.c
+++ b/drivers/net/ethernet/netronome/nfp/abm/main.c
@@ -38,6 +38,9 @@
 #include <linux/netdevice.h>
 #include <linux/rcupdate.h>
 #include <linux/slab.h>
+#include <net/pkt_cls.h>
+#include <net/pkt_sched.h>
+#include <net/red.h>
 
 #include "../nfpcore/nfp.h"
 #include "../nfpcore/nfp_cpp.h"
@@ -55,6 +58,290 @@ static u32 nfp_abm_portid(enum nfp_repr_type rtype, unsigned int id)
 	       FIELD_PREP(NFP_ABM_PORTID_ID, id);
 }
 
+static int
+__nfp_abm_reset_root(struct net_device *netdev, struct nfp_abm_link *alink,
+		     u32 handle, unsigned int qs, u32 init_val)
+{
+	struct nfp_port *port = nfp_port_from_netdev(netdev);
+	int ret;
+
+	ret = nfp_abm_ctrl_set_all_q_lvls(alink, init_val);
+	memset(alink->qdiscs, 0, sizeof(*alink->qdiscs) * alink->num_qdiscs);
+
+	alink->parent = handle;
+	alink->num_qdiscs = qs;
+	port->tc_offload_cnt = qs;
+
+	return ret;
+}
+
+static void
+nfp_abm_reset_root(struct net_device *netdev, struct nfp_abm_link *alink,
+		   u32 handle, unsigned int qs)
+{
+	__nfp_abm_reset_root(netdev, alink, handle, qs, ~0);
+}
+
+static int
+nfp_abm_red_find(struct nfp_abm_link *alink, struct tc_red_qopt_offload *opt)
+{
+	unsigned int i = TC_H_MIN(opt->parent) - 1;
+
+	if (opt->parent == TC_H_ROOT)
+		i = 0;
+	else if (TC_H_MAJ(alink->parent) == TC_H_MAJ(opt->parent))
+		i = TC_H_MIN(opt->parent) - 1;
+	else
+		return -EOPNOTSUPP;
+
+	if (i >= alink->num_qdiscs || opt->handle != alink->qdiscs[i].handle)
+		return -EOPNOTSUPP;
+
+	return i;
+}
+
+static void
+nfp_abm_red_destroy(struct net_device *netdev, struct nfp_abm_link *alink,
+		    u32 handle)
+{
+	unsigned int i;
+
+	for (i = 0; i < alink->num_qdiscs; i++)
+		if (handle == alink->qdiscs[i].handle)
+			break;
+	if (i == alink->num_qdiscs)
+		return;
+
+	if (alink->parent == TC_H_ROOT) {
+		nfp_abm_reset_root(netdev, alink, TC_H_ROOT, 0);
+	} else {
+		nfp_abm_ctrl_set_q_lvl(alink, i, ~0);
+		memset(&alink->qdiscs[i], 0, sizeof(*alink->qdiscs));
+	}
+}
+
+static int
+nfp_abm_red_replace(struct net_device *netdev, struct nfp_abm_link *alink,
+		    struct tc_red_qopt_offload *opt)
+{
+	bool existing;
+	int i, err;
+
+	i = nfp_abm_red_find(alink, opt);
+	existing = i >= 0;
+
+	if (opt->set.min != opt->set.max || !opt->set.is_ecn) {
+		nfp_warn(alink->abm->app->cpp,
+			 "RED offload failed - unsupported parameters\n");
+		err = -EINVAL;
+		goto err_destroy;
+	}
+
+	if (existing) {
+		if (alink->parent == TC_H_ROOT)
+			err = nfp_abm_ctrl_set_all_q_lvls(alink, opt->set.min);
+		else
+			err = nfp_abm_ctrl_set_q_lvl(alink, i, opt->set.min);
+		if (err)
+			goto err_destroy;
+		return 0;
+	}
+
+	if (opt->parent == TC_H_ROOT) {
+		i = 0;
+		err = __nfp_abm_reset_root(netdev, alink, TC_H_ROOT, 1,
+					   opt->set.min);
+	} else if (TC_H_MAJ(alink->parent) == TC_H_MAJ(opt->parent)) {
+		i = TC_H_MIN(opt->parent) - 1;
+		err = nfp_abm_ctrl_set_q_lvl(alink, i, opt->set.min);
+	} else {
+		return -EINVAL;
+	}
+	/* Set the handle to try full clean up, in case IO failed */
+	alink->qdiscs[i].handle = opt->handle;
+	if (err)
+		goto err_destroy;
+
+	if (opt->parent == TC_H_ROOT)
+		err = nfp_abm_ctrl_read_stats(alink, &alink->qdiscs[i].stats);
+	else
+		err = nfp_abm_ctrl_read_q_stats(alink, i,
+						&alink->qdiscs[i].stats);
+	if (err)
+		goto err_destroy;
+
+	if (opt->parent == TC_H_ROOT)
+		err = nfp_abm_ctrl_read_xstats(alink,
+					       &alink->qdiscs[i].xstats);
+	else
+		err = nfp_abm_ctrl_read_q_xstats(alink, i,
+						 &alink->qdiscs[i].xstats);
+	if (err)
+		goto err_destroy;
+
+	alink->qdiscs[i].stats.backlog_pkts = 0;
+	alink->qdiscs[i].stats.backlog_bytes = 0;
+
+	return 0;
+err_destroy:
+	/* If the qdisc keeps on living, but we can't offload undo changes */
+	if (existing) {
+		opt->set.qstats->qlen -= alink->qdiscs[i].stats.backlog_pkts;
+		opt->set.qstats->backlog -=
+			alink->qdiscs[i].stats.backlog_bytes;
+	}
+	nfp_abm_red_destroy(netdev, alink, opt->handle);
+
+	return err;
+}
+
+static void
+nfp_abm_update_stats(struct nfp_alink_stats *new, struct nfp_alink_stats *old,
+		     struct tc_qopt_offload_stats *stats)
+{
+	_bstats_update(stats->bstats, new->tx_bytes - old->tx_bytes,
+		       new->tx_pkts - old->tx_pkts);
+	stats->qstats->qlen += new->backlog_pkts - old->backlog_pkts;
+	stats->qstats->backlog += new->backlog_bytes - old->backlog_bytes;
+	stats->qstats->overlimits += new->overlimits - old->overlimits;
+	stats->qstats->drops += new->drops - old->drops;
+}
+
+static int
+nfp_abm_red_stats(struct nfp_abm_link *alink, struct tc_red_qopt_offload *opt)
+{
+	struct nfp_alink_stats *prev_stats;
+	struct nfp_alink_stats stats;
+	int i, err;
+
+	i = nfp_abm_red_find(alink, opt);
+	if (i < 0)
+		return i;
+	prev_stats = &alink->qdiscs[i].stats;
+
+	if (alink->parent == TC_H_ROOT)
+		err = nfp_abm_ctrl_read_stats(alink, &stats);
+	else
+		err = nfp_abm_ctrl_read_q_stats(alink, i, &stats);
+	if (err)
+		return err;
+
+	nfp_abm_update_stats(&stats, prev_stats, &opt->stats);
+
+	*prev_stats = stats;
+
+	return 0;
+}
+
+static int
+nfp_abm_red_xstats(struct nfp_abm_link *alink, struct tc_red_qopt_offload *opt)
+{
+	struct nfp_alink_xstats *prev_xstats;
+	struct nfp_alink_xstats xstats;
+	int i, err;
+
+	i = nfp_abm_red_find(alink, opt);
+	if (i < 0)
+		return i;
+	prev_xstats = &alink->qdiscs[i].xstats;
+
+	if (alink->parent == TC_H_ROOT)
+		err = nfp_abm_ctrl_read_xstats(alink, &xstats);
+	else
+		err = nfp_abm_ctrl_read_q_xstats(alink, i, &xstats);
+	if (err)
+		return err;
+
+	opt->xstats->forced_mark += xstats.ecn_marked - prev_xstats->ecn_marked;
+	opt->xstats->pdrop += xstats.pdrop - prev_xstats->pdrop;
+
+	*prev_xstats = xstats;
+
+	return 0;
+}
+
+static int
+nfp_abm_setup_tc_red(struct net_device *netdev, struct nfp_abm_link *alink,
+		     struct tc_red_qopt_offload *opt)
+{
+	switch (opt->command) {
+	case TC_RED_REPLACE:
+		return nfp_abm_red_replace(netdev, alink, opt);
+	case TC_RED_DESTROY:
+		nfp_abm_red_destroy(netdev, alink, opt->handle);
+		return 0;
+	case TC_RED_STATS:
+		return nfp_abm_red_stats(alink, opt);
+	case TC_RED_XSTATS:
+		return nfp_abm_red_xstats(alink, opt);
+	default:
+		return -EOPNOTSUPP;
+	}
+}
+
+static int
+nfp_abm_mq_stats(struct nfp_abm_link *alink, struct tc_mq_qopt_offload *opt)
+{
+	struct nfp_alink_stats stats;
+	unsigned int i;
+	int err;
+
+	for (i = 0; i < alink->num_qdiscs; i++) {
+		if (alink->qdiscs[i].handle == TC_H_UNSPEC)
+			continue;
+
+		err = nfp_abm_ctrl_read_q_stats(alink, i, &stats);
+		if (err)
+			return err;
+
+		nfp_abm_update_stats(&stats, &alink->qdiscs[i].stats,
+				     &opt->stats);
+	}
+
+	return 0;
+}
+
+static int
+nfp_abm_setup_tc_mq(struct net_device *netdev, struct nfp_abm_link *alink,
+		    struct tc_mq_qopt_offload *opt)
+{
+	switch (opt->command) {
+	case TC_MQ_CREATE:
+		nfp_abm_reset_root(netdev, alink, opt->handle,
+				   alink->total_queues);
+		return 0;
+	case TC_MQ_DESTROY:
+		if (opt->handle == alink->parent)
+			nfp_abm_reset_root(netdev, alink, TC_H_ROOT, 0);
+		return 0;
+	case TC_MQ_STATS:
+		return nfp_abm_mq_stats(alink, opt);
+	default:
+		return -EOPNOTSUPP;
+	}
+}
+
+static int
+nfp_abm_setup_tc(struct nfp_app *app, struct net_device *netdev,
+		 enum tc_setup_type type, void *type_data)
+{
+	struct nfp_repr *repr = netdev_priv(netdev);
+	struct nfp_port *port;
+
+	port = nfp_port_from_netdev(netdev);
+	if (!port || port->type != NFP_PORT_PF_PORT)
+		return -EOPNOTSUPP;
+
+	switch (type) {
+	case TC_SETUP_QDISC_MQ:
+		return nfp_abm_setup_tc_mq(netdev, repr->app_priv, type_data);
+	case TC_SETUP_QDISC_RED:
+		return nfp_abm_setup_tc_red(netdev, repr->app_priv, type_data);
+	default:
+		return -EOPNOTSUPP;
+	}
+}
+
 static struct net_device *nfp_abm_repr_get(struct nfp_app *app, u32 port_id)
 {
 	enum nfp_repr_type rtype;
@@ -83,14 +370,18 @@ nfp_abm_spawn_repr(struct nfp_app *app, struct nfp_abm_link *alink,
 	struct nfp_reprs *reprs;
 	struct nfp_repr *repr;
 	struct nfp_port *port;
+	unsigned int txqs;
 	int err;
 
-	if (ptype == NFP_PORT_PHYS_PORT)
+	if (ptype == NFP_PORT_PHYS_PORT) {
 		rtype = NFP_REPR_TYPE_PHYS_PORT;
-	else
+		txqs = 1;
+	} else {
 		rtype = NFP_REPR_TYPE_PF;
+		txqs = alink->vnic->max_rx_rings;
+	}
 
-	netdev = nfp_repr_alloc(app);
+	netdev = nfp_repr_alloc_mqs(app, txqs, 1);
 	if (!netdev)
 		return -ENOMEM;
 	repr = netdev_priv(netdev);
@@ -182,6 +473,7 @@ static enum devlink_eswitch_mode nfp_abm_eswitch_mode_get(struct nfp_app *app)
 static int nfp_abm_eswitch_set_legacy(struct nfp_abm *abm)
 {
 	nfp_abm_kill_reprs_all(abm);
+	nfp_abm_ctrl_qm_disable(abm);
 
 	abm->eswitch_mode = DEVLINK_ESWITCH_MODE_LEGACY;
 	return 0;
@@ -200,6 +492,10 @@ static int nfp_abm_eswitch_set_switchdev(struct nfp_abm *abm)
 	struct nfp_net *nn;
 	int err;
 
+	err = nfp_abm_ctrl_qm_enable(abm);
+	if (err)
+		return err;
+
 	list_for_each_entry(nn, &pf->vnics, vnic_list) {
 		struct nfp_abm_link *alink = nn->app_priv;
 
@@ -217,6 +513,7 @@ static int nfp_abm_eswitch_set_switchdev(struct nfp_abm *abm)
 
 err_kill_all_reprs:
 	nfp_abm_kill_reprs_all(abm);
+	nfp_abm_ctrl_qm_disable(abm);
 	return err;
 }
 
@@ -291,13 +588,21 @@ nfp_abm_vnic_alloc(struct nfp_app *app, struct nfp_net *nn, unsigned int id)
 	alink->abm = abm;
 	alink->vnic = nn;
 	alink->id = id;
+	alink->parent = TC_H_ROOT;
+	alink->total_queues = alink->vnic->max_rx_rings;
+	alink->qdiscs = kvzalloc(sizeof(*alink->qdiscs) * alink->total_queues,
+				 GFP_KERNEL);
+	if (!alink->qdiscs) {
+		err = -ENOMEM;
+		goto err_free_alink;
+	}
 
 	/* This is a multi-host app, make sure MAC/PHY is up, but don't
 	 * make the MAC/PHY state follow the state of any of the ports.
 	 */
 	err = nfp_eth_set_configured(app->cpp, eth_port->index, true);
 	if (err < 0)
-		goto err_free_alink;
+		goto err_free_qdiscs;
 
 	netif_keep_dst(nn->dp.netdev);
 
@@ -306,6 +611,8 @@ nfp_abm_vnic_alloc(struct nfp_app *app, struct nfp_net *nn, unsigned int id)
 
 	return 0;
 
+err_free_qdiscs:
+	kvfree(alink->qdiscs);
 err_free_alink:
 	kfree(alink);
 	return err;
@@ -316,9 +623,57 @@ static void nfp_abm_vnic_free(struct nfp_app *app, struct nfp_net *nn)
 	struct nfp_abm_link *alink = nn->app_priv;
 
 	nfp_abm_kill_reprs(alink->abm, alink);
+	kvfree(alink->qdiscs);
 	kfree(alink);
 }
 
+static u64 *
+nfp_abm_port_get_stats(struct nfp_app *app, struct nfp_port *port, u64 *data)
+{
+	struct nfp_repr *repr = netdev_priv(port->netdev);
+	struct nfp_abm_link *alink;
+	unsigned int i;
+
+	if (port->type != NFP_PORT_PF_PORT)
+		return data;
+	alink = repr->app_priv;
+	for (i = 0; i < alink->vnic->dp.num_r_vecs; i++) {
+		*data++ = nfp_abm_ctrl_stat_non_sto(alink, i);
+		*data++ = nfp_abm_ctrl_stat_sto(alink, i);
+	}
+	return data;
+}
+
+static int
+nfp_abm_port_get_stats_count(struct nfp_app *app, struct nfp_port *port)
+{
+	struct nfp_repr *repr = netdev_priv(port->netdev);
+	struct nfp_abm_link *alink;
+
+	if (port->type != NFP_PORT_PF_PORT)
+		return 0;
+	alink = repr->app_priv;
+	return alink->vnic->dp.num_r_vecs * 2;
+}
+
+static u8 *
+nfp_abm_port_get_stats_strings(struct nfp_app *app, struct nfp_port *port,
+			       u8 *data)
+{
+	struct nfp_repr *repr = netdev_priv(port->netdev);
+	struct nfp_abm_link *alink;
+	unsigned int i;
+
+	if (port->type != NFP_PORT_PF_PORT)
+		return data;
+	alink = repr->app_priv;
+	for (i = 0; i < alink->vnic->dp.num_r_vecs; i++) {
+		data = nfp_pr_et(data, "q%u_no_wait", i);
+		data = nfp_pr_et(data, "q%u_delayed", i);
+	}
+	return data;
+}
+
 static int nfp_abm_init(struct nfp_app *app)
 {
 	struct nfp_pf *pf = app->pf;
@@ -350,6 +705,11 @@ static int nfp_abm_init(struct nfp_app *app)
 	if (err)
 		goto err_free_abm;
 
+	/* We start in legacy mode, make sure advanced queuing is disabled */
+	err = nfp_abm_ctrl_qm_disable(abm);
+	if (err)
+		goto err_free_abm;
+
 	err = -ENOMEM;
 	reprs = nfp_reprs_alloc(pf->max_data_vnics);
 	if (!reprs)
@@ -392,6 +752,12 @@ const struct nfp_app_type app_abm = {
 	.vnic_alloc	= nfp_abm_vnic_alloc,
 	.vnic_free	= nfp_abm_vnic_free,
 
+	.port_get_stats		= nfp_abm_port_get_stats,
+	.port_get_stats_count	= nfp_abm_port_get_stats_count,
+	.port_get_stats_strings	= nfp_abm_port_get_stats_strings,
+
+	.setup_tc	= nfp_abm_setup_tc,
+
 	.eswitch_mode_get	= nfp_abm_eswitch_mode_get,
 	.eswitch_mode_set	= nfp_abm_eswitch_mode_set,
 
diff --git a/drivers/net/ethernet/netronome/nfp/abm/main.h b/drivers/net/ethernet/netronome/nfp/abm/main.h
index 5938b69b8a84..934a70835473 100644
--- a/drivers/net/ethernet/netronome/nfp/abm/main.h
+++ b/drivers/net/ethernet/netronome/nfp/abm/main.h
@@ -49,11 +49,55 @@ struct nfp_net;
  * @pf_id:	ID of our PF link
  * @eswitch_mode:	devlink eswitch mode, advanced functions only visible
  *			in switchdev mode
+ * @q_lvls:	queue level control area
+ * @qm_stats:	queue statistics symbol
  */
 struct nfp_abm {
 	struct nfp_app *app;
 	unsigned int pf_id;
 	enum devlink_eswitch_mode eswitch_mode;
+	const struct nfp_rtsym *q_lvls;
+	const struct nfp_rtsym *qm_stats;
+};
+
+/**
+ * struct nfp_alink_stats - ABM NIC statistics
+ * @tx_pkts:		number of TXed packets
+ * @tx_bytes:		number of TXed bytes
+ * @backlog_pkts:	momentary backlog length (packets)
+ * @backlog_bytes:	momentary backlog length (bytes)
+ * @overlimits:		number of ECN marked TXed packets (accumulative)
+ * @drops:		number of tail-dropped packets (accumulative)
+ */
+struct nfp_alink_stats {
+	u64 tx_pkts;
+	u64 tx_bytes;
+	u64 backlog_pkts;
+	u64 backlog_bytes;
+	u64 overlimits;
+	u64 drops;
+};
+
+/**
+ * struct nfp_alink_xstats - extended ABM NIC statistics
+ * @ecn_marked:		number of ECN marked TXed packets
+ * @pdrop:		number of hard drops due to queue limit
+ */
+struct nfp_alink_xstats {
+	u64 ecn_marked;
+	u64 pdrop;
+};
+
+/**
+ * struct nfp_red_qdisc - representation of single RED Qdisc
+ * @handle:	handle of currently offloaded RED Qdisc
+ * @stats:	statistics from last refresh
+ * @xstats:	base of extended statistics
+ */
+struct nfp_red_qdisc {
+	u32 handle;
+	struct nfp_alink_stats stats;
+	struct nfp_alink_xstats xstats;
 };
 
 /**
@@ -62,14 +106,37 @@ struct nfp_abm {
  * @vnic:	data vNIC
  * @id:		id of the data vNIC
  * @queue_base:	id of base to host queue within PCIe (not QC idx)
+ * @total_queues:	number of PF queues
+ * @parent:	handle of expected parent, i.e. handle of MQ, or TC_H_ROOT
+ * @num_qdiscs:	number of currently used qdiscs
+ * @qdiscs:	array of qdiscs
  */
 struct nfp_abm_link {
 	struct nfp_abm *abm;
 	struct nfp_net *vnic;
 	unsigned int id;
 	unsigned int queue_base;
+	unsigned int total_queues;
+	u32 parent;
+	unsigned int num_qdiscs;
+	struct nfp_red_qdisc *qdiscs;
 };
 
 void nfp_abm_ctrl_read_params(struct nfp_abm_link *alink);
 int nfp_abm_ctrl_find_addrs(struct nfp_abm *abm);
+int nfp_abm_ctrl_set_all_q_lvls(struct nfp_abm_link *alink, u32 val);
+int nfp_abm_ctrl_set_q_lvl(struct nfp_abm_link *alink, unsigned int i,
+			   u32 val);
+int nfp_abm_ctrl_read_stats(struct nfp_abm_link *alink,
+			    struct nfp_alink_stats *stats);
+int nfp_abm_ctrl_read_q_stats(struct nfp_abm_link *alink, unsigned int i,
+			      struct nfp_alink_stats *stats);
+int nfp_abm_ctrl_read_xstats(struct nfp_abm_link *alink,
+			     struct nfp_alink_xstats *xstats);
+int nfp_abm_ctrl_read_q_xstats(struct nfp_abm_link *alink, unsigned int i,
+			       struct nfp_alink_xstats *xstats);
+u64 nfp_abm_ctrl_stat_non_sto(struct nfp_abm_link *alink, unsigned int i);
+u64 nfp_abm_ctrl_stat_sto(struct nfp_abm_link *alink, unsigned int i);
+int nfp_abm_ctrl_qm_enable(struct nfp_abm *abm);
+int nfp_abm_ctrl_qm_disable(struct nfp_abm *abm);
 #endif
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_abi.h b/drivers/net/ethernet/netronome/nfp/nfp_abi.h
index 7ffa6e6a9d1c..8b56c27931bf 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_abi.h
+++ b/drivers/net/ethernet/netronome/nfp/nfp_abi.h
@@ -59,12 +59,26 @@
  * @NFP_MBOX_POOL_SET:	set shared buffer pool info/config
  * Input  - struct nfp_shared_buf_pool_info_set
  * Output - None
+ *
+ * @NFP_MBOX_PCIE_ABM_ENABLE:	enable PCIe-side advanced buffer management
+ * Enable advanced buffer management of the PCIe block.  If ABM is disabled
+ * PCIe block maintains a very short queue of buffers and does tail drop.
+ * ABM allows more advanced buffering and priority control.
+ * Input  - None
+ * Output - None
+ *
+ * @NFP_MBOX_PCIE_ABM_DISABLE:	disable PCIe-side advanced buffer management
+ * Input  - None
+ * Output - None
  */
 enum nfp_mbox_cmd {
 	NFP_MBOX_NO_CMD			= 0x00,
 
 	NFP_MBOX_POOL_GET		= 0x01,
 	NFP_MBOX_POOL_SET		= 0x02,
+
+	NFP_MBOX_PCIE_ABM_ENABLE	= 0x03,
+	NFP_MBOX_PCIE_ABM_DISABLE	= 0x04,
 };
 
 #define NFP_SHARED_BUF_COUNT_SYM_NAME	"_abi_nfd_pf%u_sb_cnt"
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_app.c b/drivers/net/ethernet/netronome/nfp/nfp_app.c
index c9d8a7ab311e..f28b244f4ee7 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_app.c
+++ b/drivers/net/ethernet/netronome/nfp/nfp_app.c
@@ -43,6 +43,7 @@
 #include "nfp_main.h"
 #include "nfp_net.h"
 #include "nfp_net_repr.h"
+#include "nfp_port.h"
 
 static const struct nfp_app_type *apps[] = {
 	[NFP_APP_CORE_NIC]	= &app_nic,
@@ -85,6 +86,27 @@ const char *nfp_app_mip_name(struct nfp_app *app)
 	return nfp_mip_name(app->pf->mip);
 }
 
+u64 *nfp_app_port_get_stats(struct nfp_port *port, u64 *data)
+{
+	if (!port || !port->app || !port->app->type->port_get_stats)
+		return data;
+	return port->app->type->port_get_stats(port->app, port, data);
+}
+
+int nfp_app_port_get_stats_count(struct nfp_port *port)
+{
+	if (!port || !port->app || !port->app->type->port_get_stats_count)
+		return 0;
+	return port->app->type->port_get_stats_count(port->app, port);
+}
+
+u8 *nfp_app_port_get_stats_strings(struct nfp_port *port, u8 *data)
+{
+	if (!port || !port->app || !port->app->type->port_get_stats_strings)
+		return data;
+	return port->app->type->port_get_stats_strings(port->app, port, data);
+}
+
 struct sk_buff *
 nfp_app_ctrl_msg_alloc(struct nfp_app *app, unsigned int size, gfp_t priority)
 {
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_app.h b/drivers/net/ethernet/netronome/nfp/nfp_app.h
index 23b99a4e05c2..ee74caacb015 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_app.h
+++ b/drivers/net/ethernet/netronome/nfp/nfp_app.h
@@ -90,6 +90,9 @@ extern const struct nfp_app_type app_abm;
  * @repr_stop:	representor netdev stop callback
  * @check_mtu:	MTU change request on a netdev (verify it is valid)
  * @repr_change_mtu:	MTU change request on repr (make and verify change)
+ * @port_get_stats:		get extra ethtool statistics for a port
+ * @port_get_stats_count:	get count of extra statistics for a port
+ * @port_get_stats_strings:	get strings for extra statistics
  * @start:	start application logic
  * @stop:	stop application logic
  * @ctrl_msg_rx:    control message handler
@@ -132,6 +135,12 @@ struct nfp_app_type {
 	int (*repr_change_mtu)(struct nfp_app *app, struct net_device *netdev,
 			       int new_mtu);
 
+	u64 *(*port_get_stats)(struct nfp_app *app,
+			       struct nfp_port *port, u64 *data);
+	int (*port_get_stats_count)(struct nfp_app *app, struct nfp_port *port);
+	u8 *(*port_get_stats_strings)(struct nfp_app *app,
+				      struct nfp_port *port, u8 *data);
+
 	int (*start)(struct nfp_app *app);
 	void (*stop)(struct nfp_app *app);
 
@@ -404,6 +413,10 @@ static inline struct net_device *nfp_app_repr_get(struct nfp_app *app, u32 id)
 
 struct nfp_app *nfp_app_from_netdev(struct net_device *netdev);
 
+u64 *nfp_app_port_get_stats(struct nfp_port *port, u64 *data);
+int nfp_app_port_get_stats_count(struct nfp_port *port);
+u8 *nfp_app_port_get_stats_strings(struct nfp_port *port, u8 *data);
+
 struct nfp_reprs *
 nfp_reprs_get_locked(struct nfp_app *app, enum nfp_repr_type type);
 struct nfp_reprs *
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
index eea11e881bf5..75110c8d6a90 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
+++ b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
@@ -3286,11 +3286,12 @@ nfp_net_get_phys_port_name(struct net_device *netdev, char *name, size_t len)
 	if (nn->port)
 		return nfp_port_get_phys_port_name(netdev, name, len);
 
-	if (!nn->dp.is_vf) {
-		n = snprintf(name, len, "%d", nn->id);
-		if (n >= len)
-			return -EINVAL;
-	}
+	if (nn->dp.is_vf)
+		return -EOPNOTSUPP;
+
+	n = snprintf(name, len, "n%d", nn->id);
+	if (n >= len)
+		return -EINVAL;
 
 	return 0;
 }
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c b/drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c
index c9016419bfa0..26d1cc4e2906 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c
+++ b/drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c
@@ -437,7 +437,7 @@ static int nfp_net_set_ringparam(struct net_device *netdev,
 	return nfp_net_set_ring_size(nn, rxd_cnt, txd_cnt);
 }
 
-static __printf(2, 3) u8 *nfp_pr_et(u8 *data, const char *fmt, ...)
+__printf(2, 3) u8 *nfp_pr_et(u8 *data, const char *fmt, ...)
 {
 	va_list args;
 
@@ -637,6 +637,7 @@ static void nfp_net_get_strings(struct net_device *netdev,
 						     nn->dp.num_tx_rings,
 						     false);
 		data = nfp_mac_get_stats_strings(netdev, data);
+		data = nfp_app_port_get_stats_strings(nn->port, data);
 		break;
 	}
 }
@@ -651,6 +652,7 @@ nfp_net_get_stats(struct net_device *netdev, struct ethtool_stats *stats,
 	data = nfp_vnic_get_hw_stats(data, nn->dp.ctrl_bar,
 				     nn->dp.num_rx_rings, nn->dp.num_tx_rings);
 	data = nfp_mac_get_stats(netdev, data);
+	data = nfp_app_port_get_stats(nn->port, data);
 }
 
 static int nfp_net_get_sset_count(struct net_device *netdev, int sset)
@@ -662,7 +664,8 @@ static int nfp_net_get_sset_count(struct net_device *netdev, int sset)
 		return nfp_vnic_get_sw_stats_count(netdev) +
 		       nfp_vnic_get_hw_stats_count(nn->dp.num_rx_rings,
 						   nn->dp.num_tx_rings) +
-		       nfp_mac_get_stats_count(netdev);
+		       nfp_mac_get_stats_count(netdev) +
+		       nfp_app_port_get_stats_count(nn->port);
 	default:
 		return -EOPNOTSUPP;
 	}
@@ -679,6 +682,7 @@ static void nfp_port_get_strings(struct net_device *netdev,
 			data = nfp_vnic_get_hw_stats_strings(data, 0, 0, true);
 		else
 			data = nfp_mac_get_stats_strings(netdev, data);
+		data = nfp_app_port_get_stats_strings(port, data);
 		break;
 	}
 }
@@ -693,6 +697,7 @@ nfp_port_get_stats(struct net_device *netdev, struct ethtool_stats *stats,
 		data = nfp_vnic_get_hw_stats(data, port->vnic, 0, 0);
 	else
 		data = nfp_mac_get_stats(netdev, data);
+	data = nfp_app_port_get_stats(port, data);
 }
 
 static int nfp_port_get_sset_count(struct net_device *netdev, int sset)
@@ -706,6 +711,7 @@ static int nfp_port_get_sset_count(struct net_device *netdev, int sset)
 			count = nfp_vnic_get_hw_stats_count(0, 0);
 		else
 			count = nfp_mac_get_stats_count(netdev);
+		count += nfp_app_port_get_stats_count(port);
 		return count;
 	default:
 		return -EOPNOTSUPP;
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_repr.c b/drivers/net/ethernet/netronome/nfp/nfp_net_repr.c
index 117eca6819de..d7b712f6362f 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_net_repr.c
+++ b/drivers/net/ethernet/netronome/nfp/nfp_net_repr.c
@@ -360,12 +360,13 @@ void nfp_repr_free(struct net_device *netdev)
 	__nfp_repr_free(netdev_priv(netdev));
 }
 
-struct net_device *nfp_repr_alloc(struct nfp_app *app)
+struct net_device *
+nfp_repr_alloc_mqs(struct nfp_app *app, unsigned int txqs, unsigned int rxqs)
 {
 	struct net_device *netdev;
 	struct nfp_repr *repr;
 
-	netdev = alloc_etherdev(sizeof(*repr));
+	netdev = alloc_etherdev_mqs(sizeof(*repr), txqs, rxqs);
 	if (!netdev)
 		return NULL;
 
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_repr.h b/drivers/net/ethernet/netronome/nfp/nfp_net_repr.h
index 8366e4f3c623..1bf2b18109ab 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_net_repr.h
+++ b/drivers/net/ethernet/netronome/nfp/nfp_net_repr.h
@@ -126,7 +126,8 @@ int nfp_repr_init(struct nfp_app *app, struct net_device *netdev,
 		  u32 cmsg_port_id, struct nfp_port *port,
 		  struct net_device *pf_netdev);
 void nfp_repr_free(struct net_device *netdev);
-struct net_device *nfp_repr_alloc(struct nfp_app *app);
+struct net_device *
+nfp_repr_alloc_mqs(struct nfp_app *app, unsigned int txqs, unsigned int rxqs);
 void nfp_repr_clean_and_free(struct nfp_repr *repr);
 void nfp_reprs_clean_and_free(struct nfp_app *app, struct nfp_reprs *reprs);
 void nfp_reprs_clean_and_free_by_type(struct nfp_app *app,
@@ -134,4 +135,8 @@ void nfp_reprs_clean_and_free_by_type(struct nfp_app *app,
 struct nfp_reprs *nfp_reprs_alloc(unsigned int num_reprs);
 int nfp_reprs_resync_phys_ports(struct nfp_app *app);
 
+static inline struct net_device *nfp_repr_alloc(struct nfp_app *app)
+{
+	return nfp_repr_alloc_mqs(app, 1, 1);
+}
 #endif /* NFP_NET_REPR_H */
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_port.h b/drivers/net/ethernet/netronome/nfp/nfp_port.h
index 18666750456e..51f10ae2d53e 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_port.h
+++ b/drivers/net/ethernet/netronome/nfp/nfp_port.h
@@ -122,6 +122,8 @@ struct nfp_port {
 extern const struct ethtool_ops nfp_port_ethtool_ops;
 extern const struct switchdev_ops nfp_port_switchdev_ops;
 
+__printf(2, 3) u8 *nfp_pr_et(u8 *data, const char *fmt, ...);
+
 int nfp_port_setup_tc(struct net_device *netdev, enum tc_setup_type type,
 		      void *type_data);
 
diff --git a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cpp.h b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cpp.h
index 4e19add1c539..b0da3d436850 100644
--- a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cpp.h
+++ b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cpp.h
@@ -87,6 +87,11 @@ struct resource;
 
 #define NFP_CPP_TARGET_ID_MASK          0x1f
 
+#define NFP_CPP_ATOMIC_RD(target, island) \
+	NFP_CPP_ISLAND_ID((target), 3, 0, (island))
+#define NFP_CPP_ATOMIC_WR(target, island) \
+	NFP_CPP_ISLAND_ID((target), 4, 0, (island))
+
 /**
  * NFP_CPP_ID() - pack target, token, and action into a CPP ID.
  * @target:     NFP CPP target id
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index f45b1a4e37ab..6b863ed3174a 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -791,6 +791,7 @@ enum tc_setup_type {
 	TC_SETUP_QDISC_CBS,
 	TC_SETUP_QDISC_RED,
 	TC_SETUP_QDISC_PRIO,
+	TC_SETUP_QDISC_MQ,
 };
 
 /* These structures hold the attributes of bpf state that are being passed
diff --git a/include/net/pkt_cls.h b/include/net/pkt_cls.h
index f3ec43725724..a3c1a2c47cd4 100644
--- a/include/net/pkt_cls.h
+++ b/include/net/pkt_cls.h
@@ -778,6 +778,18 @@ struct tc_qopt_offload_stats {
 	struct gnet_stats_queue *qstats;
 };
 
+enum tc_mq_command {
+	TC_MQ_CREATE,
+	TC_MQ_DESTROY,
+	TC_MQ_STATS,
+};
+
+struct tc_mq_qopt_offload {
+	enum tc_mq_command command;
+	u32 handle;
+	struct tc_qopt_offload_stats stats;
+};
+
 enum tc_red_command {
 	TC_RED_REPLACE,
 	TC_RED_DESTROY,
diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h
index 827a3711dc68..6488daa32f82 100644
--- a/include/net/sch_generic.h
+++ b/include/net/sch_generic.h
@@ -350,14 +350,14 @@ static inline int qdisc_qlen(const struct Qdisc *q)
 
 static inline int qdisc_qlen_sum(const struct Qdisc *q)
 {
-	__u32 qlen = 0;
+	__u32 qlen = q->qstats.qlen;
 	int i;
 
 	if (q->flags & TCQ_F_NOLOCK) {
 		for_each_possible_cpu(i)
 			qlen += per_cpu_ptr(q->cpu_qstats, i)->qlen;
 	} else {
-		qlen = q->q.qlen;
+		qlen += q->q.qlen;
 	}
 
 	return qlen;
diff --git a/net/sched/sch_mq.c b/net/sched/sch_mq.c
index f062a18e9162..d6b8ae4ed7a3 100644
--- a/net/sched/sch_mq.c
+++ b/net/sched/sch_mq.c
@@ -16,6 +16,7 @@
 #include <linux/errno.h>
 #include <linux/skbuff.h>
 #include <net/netlink.h>
+#include <net/pkt_cls.h>
 #include <net/pkt_sched.h>
 #include <net/sch_generic.h>
 
@@ -23,12 +24,44 @@ struct mq_sched {
 	struct Qdisc		**qdiscs;
 };
 
+static int mq_offload(struct Qdisc *sch, enum tc_mq_command cmd)
+{
+	struct net_device *dev = qdisc_dev(sch);
+	struct tc_mq_qopt_offload opt = {
+		.command = cmd,
+		.handle = sch->handle,
+	};
+
+	if (!tc_can_offload(dev) || !dev->netdev_ops->ndo_setup_tc)
+		return -EOPNOTSUPP;
+
+	return dev->netdev_ops->ndo_setup_tc(dev, TC_SETUP_QDISC_MQ, &opt);
+}
+
+static void mq_offload_stats(struct Qdisc *sch)
+{
+	struct net_device *dev = qdisc_dev(sch);
+	struct tc_mq_qopt_offload opt = {
+		.command = TC_MQ_STATS,
+		.handle = sch->handle,
+		.stats = {
+			.bstats = &sch->bstats,
+			.qstats = &sch->qstats,
+		},
+	};
+
+	if (tc_can_offload(dev) && dev->netdev_ops->ndo_setup_tc)
+		dev->netdev_ops->ndo_setup_tc(dev, TC_SETUP_QDISC_MQ, &opt);
+}
+
 static void mq_destroy(struct Qdisc *sch)
 {
 	struct net_device *dev = qdisc_dev(sch);
 	struct mq_sched *priv = qdisc_priv(sch);
 	unsigned int ntx;
 
+	mq_offload(sch, TC_MQ_DESTROY);
+
 	if (!priv->qdiscs)
 		return;
 	for (ntx = 0; ntx < dev->num_tx_queues && priv->qdiscs[ntx]; ntx++)
@@ -70,6 +103,8 @@ static int mq_init(struct Qdisc *sch, struct nlattr *opt,
 	}
 
 	sch->flags |= TCQ_F_MQROOT;
+
+	mq_offload(sch, TC_MQ_CREATE);
 	return 0;
 }
 
@@ -127,6 +162,7 @@ static int mq_dump(struct Qdisc *sch, struct sk_buff *skb)
 			sch->q.qlen		+= qdisc->q.qlen;
 			sch->bstats.bytes	+= qdisc->bstats.bytes;
 			sch->bstats.packets	+= qdisc->bstats.packets;
+			sch->qstats.qlen	+= qdisc->qstats.qlen;
 			sch->qstats.backlog	+= qdisc->qstats.backlog;
 			sch->qstats.drops	+= qdisc->qstats.drops;
 			sch->qstats.requeues	+= qdisc->qstats.requeues;
@@ -135,6 +171,7 @@ static int mq_dump(struct Qdisc *sch, struct sk_buff *skb)
 
 		spin_unlock_bh(qdisc_lock(qdisc));
 	}
+	mq_offload_stats(sch);
 
 	return 0;
 }