1 files changed, 575 insertions, 160 deletions

diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_ring.c b/drivers/net/ethernet/aquantia/atlantic/aq_ring.c
index 68fdb3994088..d23d23bed39f 100644
--- a/drivers/net/ethernet/aquantia/atlantic/aq_ring.c
+++ b/drivers/net/ethernet/aquantia/atlantic/aq_ring.c
@@ -1,20 +1,43 @@
 // SPDX-License-Identifier: GPL-2.0-only
-/*
- * aQuantia Corporation Network Driver
- * Copyright (C) 2014-2019 aQuantia Corporation. All rights reserved
+/* Atlantic Network Driver
+ *
+ * Copyright (C) 2014-2019 aQuantia Corporation
+ * Copyright (C) 2019-2020 Marvell International Ltd.
  */
 
 /* File aq_ring.c: Definition of functions for Rx/Tx rings. */
 
-#include "aq_ring.h"
 #include "aq_nic.h"
 #include "aq_hw.h"
 #include "aq_hw_utils.h"
 #include "aq_ptp.h"
+#include "aq_vec.h"
+#include "aq_main.h"
 
+#include <net/xdp.h>
+#include <linux/filter.h>
+#include <linux/bpf_trace.h>
 #include <linux/netdevice.h>
 #include <linux/etherdevice.h>
 
+static void aq_get_rxpages_xdp(struct aq_ring_buff_s *buff,
+			       struct xdp_buff *xdp)
+{
+	struct skb_shared_info *sinfo;
+	int i;
+
+	if (xdp_buff_has_frags(xdp)) {
+		sinfo = xdp_get_shared_info_from_buff(xdp);
+
+		for (i = 0; i < sinfo->nr_frags; i++) {
+			skb_frag_t *frag = &sinfo->frags[i];
+
+			page_ref_inc(skb_frag_page(frag));
+		}
+	}
+	page_ref_inc(buff->rxdata.page);
+}
+
 static inline void aq_free_rxpage(struct aq_rxpage *rxpage, struct device *dev)
 {
 	unsigned int len = PAGE_SIZE << rxpage->order;
@@ -26,9 +49,10 @@ static inline void aq_free_rxpage(struct aq_rxpage *rxpage, struct device *dev)
 	rxpage->page = NULL;
 }
 
-static int aq_get_rxpage(struct aq_rxpage *rxpage, unsigned int order,
-			 struct device *dev)
+static int aq_alloc_rxpages(struct aq_rxpage *rxpage, struct aq_ring_s *rx_ring)
 {
+	struct device *dev = aq_nic_get_dev(rx_ring->aq_nic);
+	unsigned int order = rx_ring->page_order;
 	struct page *page;
 	int ret = -ENOMEM;
 	dma_addr_t daddr;
@@ -46,7 +70,7 @@ static int aq_get_rxpage(struct aq_rxpage *rxpage, unsigned int order,
 	rxpage->page = page;
 	rxpage->daddr = daddr;
 	rxpage->order = order;
-	rxpage->pg_off = 0;
+	rxpage->pg_off = rx_ring->page_offset;
 
 	return 0;
 
@@ -57,44 +81,59 @@ err_exit:
 	return ret;
 }
 
-static int aq_get_rxpages(struct aq_ring_s *self, struct aq_ring_buff_s *rxbuf,
-			  int order)
+static int aq_get_rxpages(struct aq_ring_s *self, struct aq_ring_buff_s *rxbuf)
 {
+	unsigned int order = self->page_order;
+	u16 page_offset = self->page_offset;
+	u16 frame_max = self->frame_max;
+	u16 tail_size = self->tail_size;
 	int ret;
 
 	if (rxbuf->rxdata.page) {
 		/* One means ring is the only user and can reuse */
 		if (page_ref_count(rxbuf->rxdata.page) > 1) {
 			/* Try reuse buffer */
-			rxbuf->rxdata.pg_off += AQ_CFG_RX_FRAME_MAX;
-			if (rxbuf->rxdata.pg_off + AQ_CFG_RX_FRAME_MAX <=
-				(PAGE_SIZE << order)) {
+			rxbuf->rxdata.pg_off += frame_max + page_offset +
+						tail_size;
+			if (rxbuf->rxdata.pg_off + frame_max + tail_size <=
+			    (PAGE_SIZE << order)) {
+				u64_stats_update_begin(&self->stats.rx.syncp);
 				self->stats.rx.pg_flips++;
+				u64_stats_update_end(&self->stats.rx.syncp);
+
 			} else {
 				/* Buffer exhausted. We have other users and
 				 * should release this page and realloc
 				 */
 				aq_free_rxpage(&rxbuf->rxdata,
 					       aq_nic_get_dev(self->aq_nic));
+				u64_stats_update_begin(&self->stats.rx.syncp);
 				self->stats.rx.pg_losts++;
+				u64_stats_update_end(&self->stats.rx.syncp);
 			}
 		} else {
-			rxbuf->rxdata.pg_off = 0;
+			rxbuf->rxdata.pg_off = page_offset;
+			u64_stats_update_begin(&self->stats.rx.syncp);
 			self->stats.rx.pg_reuses++;
+			u64_stats_update_end(&self->stats.rx.syncp);
 		}
 	}
 
 	if (!rxbuf->rxdata.page) {
-		ret = aq_get_rxpage(&rxbuf->rxdata, order,
-				    aq_nic_get_dev(self->aq_nic));
+		ret = aq_alloc_rxpages(&rxbuf->rxdata, self);
+		if (ret) {
+			u64_stats_update_begin(&self->stats.rx.syncp);
+			self->stats.rx.alloc_fails++;
+			u64_stats_update_end(&self->stats.rx.syncp);
+		}
 		return ret;
 	}
 
 	return 0;
 }
 
-static struct aq_ring_s *aq_ring_alloc(struct aq_ring_s *self,
-				       struct aq_nic_s *aq_nic)
+static int aq_ring_alloc(struct aq_ring_s *self,
+			 struct aq_nic_s *aq_nic)
 {
 	int err = 0;
 
@@ -105,6 +144,7 @@ static struct aq_ring_s *aq_ring_alloc(struct aq_ring_s *self,
 		err = -ENOMEM;
 		goto err_exit;
 	}
+
 	self->dx_ring = dma_alloc_coherent(aq_nic_get_dev(aq_nic),
 					   self->size * self->dx_size,
 					   &self->dx_ring_pa, GFP_KERNEL);
@@ -116,72 +156,54 @@ static struct aq_ring_s *aq_ring_alloc(struct aq_ring_s *self,
 err_exit:
 	if (err < 0) {
 		aq_ring_free(self);
-		self = NULL;
 	}
 
-	return self;
+	return err;
 }
 
-struct aq_ring_s *aq_ring_tx_alloc(struct aq_ring_s *self,
-				   struct aq_nic_s *aq_nic,
-				   unsigned int idx,
-				   struct aq_nic_cfg_s *aq_nic_cfg)
+int aq_ring_tx_alloc(struct aq_ring_s *self,
+		     struct aq_nic_s *aq_nic,
+		     unsigned int idx,
+		     struct aq_nic_cfg_s *aq_nic_cfg)
 {
-	int err = 0;
-
 	self->aq_nic = aq_nic;
 	self->idx = idx;
 	self->size = aq_nic_cfg->txds;
 	self->dx_size = aq_nic_cfg->aq_hw_caps->txd_size;
 
-	self = aq_ring_alloc(self, aq_nic);
-	if (!self) {
-		err = -ENOMEM;
-		goto err_exit;
-	}
-
-err_exit:
-	if (err < 0) {
-		aq_ring_free(self);
-		self = NULL;
-	}
-
-	return self;
+	return aq_ring_alloc(self, aq_nic);
 }
 
-struct aq_ring_s *aq_ring_rx_alloc(struct aq_ring_s *self,
-				   struct aq_nic_s *aq_nic,
-				   unsigned int idx,
-				   struct aq_nic_cfg_s *aq_nic_cfg)
+int aq_ring_rx_alloc(struct aq_ring_s *self,
+		     struct aq_nic_s *aq_nic,
+		     unsigned int idx,
+		     struct aq_nic_cfg_s *aq_nic_cfg)
 {
-	int err = 0;
-
 	self->aq_nic = aq_nic;
 	self->idx = idx;
 	self->size = aq_nic_cfg->rxds;
 	self->dx_size = aq_nic_cfg->aq_hw_caps->rxd_size;
-	self->page_order = fls(AQ_CFG_RX_FRAME_MAX / PAGE_SIZE +
-			       (AQ_CFG_RX_FRAME_MAX % PAGE_SIZE ? 1 : 0)) - 1;
-
-	if (aq_nic_cfg->rxpageorder > self->page_order)
-		self->page_order = aq_nic_cfg->rxpageorder;
-
-	self = aq_ring_alloc(self, aq_nic);
-	if (!self) {
-		err = -ENOMEM;
-		goto err_exit;
-	}
-
-err_exit:
-	if (err < 0) {
-		aq_ring_free(self);
-		self = NULL;
+	self->xdp_prog = aq_nic->xdp_prog;
+	self->frame_max = AQ_CFG_RX_FRAME_MAX;
+
+	/* Only order-2 is allowed if XDP is enabled */
+	if (READ_ONCE(self->xdp_prog)) {
+		self->page_offset = AQ_XDP_HEADROOM;
+		self->page_order = AQ_CFG_XDP_PAGEORDER;
+		self->tail_size = AQ_XDP_TAILROOM;
+	} else {
+		self->page_offset = 0;
+		self->page_order = fls(self->frame_max / PAGE_SIZE +
+				       (self->frame_max % PAGE_SIZE ? 1 : 0)) - 1;
+		if (aq_nic_cfg->rxpageorder > self->page_order)
+			self->page_order = aq_nic_cfg->rxpageorder;
+		self->tail_size = 0;
 	}
 
-	return self;
+	return aq_ring_alloc(self, aq_nic);
 }
 
-struct aq_ring_s *
+int
 aq_ring_hwts_rx_alloc(struct aq_ring_s *self, struct aq_nic_s *aq_nic,
 		      unsigned int idx, unsigned int size, unsigned int dx_size)
 {
@@ -199,17 +221,23 @@ aq_ring_hwts_rx_alloc(struct aq_ring_s *self, struct aq_nic_s *aq_nic,
 					   GFP_KERNEL);
 	if (!self->dx_ring) {
 		aq_ring_free(self);
-		return NULL;
+		return -ENOMEM;
 	}
 
-	return self;
+	return 0;
 }
 
-int aq_ring_init(struct aq_ring_s *self)
+int aq_ring_init(struct aq_ring_s *self, const enum atl_ring_type ring_type)
 {
 	self->hw_head = 0;
 	self->sw_head = 0;
 	self->sw_tail = 0;
+	self->ring_type = ring_type;
+
+	if (self->ring_type == ATL_RING_RX)
+		u64_stats_init(&self->stats.rx.syncp);
+	else
+		u64_stats_init(&self->stats.tx.syncp);
 
 	return 0;
 }
@@ -237,7 +265,9 @@ void aq_ring_queue_wake(struct aq_ring_s *ring)
 						      ring->idx))) {
 		netif_wake_subqueue(ndev,
 				    AQ_NIC_RING2QMAP(ring->aq_nic, ring->idx));
+		u64_stats_update_begin(&ring->stats.tx.syncp);
 		ring->stats.tx.queue_restarts++;
+		u64_stats_update_end(&ring->stats.tx.syncp);
 	}
 }
 
@@ -278,12 +308,26 @@ bool aq_ring_tx_clean(struct aq_ring_s *self)
 			}
 		}
 
-		if (unlikely(buff->is_eop)) {
-			++self->stats.rx.packets;
-			self->stats.tx.bytes += buff->skb->len;
+		if (likely(!buff->is_eop))
+			goto out;
 
+		if (buff->skb) {
+			u64_stats_update_begin(&self->stats.tx.syncp);
+			++self->stats.tx.packets;
+			self->stats.tx.bytes += buff->skb->len;
+			u64_stats_update_end(&self->stats.tx.syncp);
 			dev_kfree_skb_any(buff->skb);
+		} else if (buff->xdpf) {
+			u64_stats_update_begin(&self->stats.tx.syncp);
+			++self->stats.tx.packets;
+			self->stats.tx.bytes += xdp_get_frame_len(buff->xdpf);
+			u64_stats_update_end(&self->stats.tx.syncp);
+			xdp_return_frame_rx_napi(buff->xdpf);
 		}
+
+out:
+		buff->skb = NULL;
+		buff->xdpf = NULL;
 		buff->pa = 0U;
 		buff->eop_index = 0xffffU;
 		self->sw_head = aq_ring_next_dx(self, self->sw_head);
@@ -300,7 +344,9 @@ static void aq_rx_checksum(struct aq_ring_s *self,
 		return;
 
 	if (unlikely(buff->is_cso_err)) {
+		u64_stats_update_begin(&self->stats.rx.syncp);
 		++self->stats.rx.errors;
+		u64_stats_update_end(&self->stats.rx.syncp);
 		skb->ip_summed = CHECKSUM_NONE;
 		return;
 	}
@@ -314,14 +360,175 @@ static void aq_rx_checksum(struct aq_ring_s *self,
 		__skb_incr_checksum_unnecessary(skb);
 }
 
-#define AQ_SKB_ALIGN SKB_DATA_ALIGN(sizeof(struct skb_shared_info))
-int aq_ring_rx_clean(struct aq_ring_s *self,
-		     struct napi_struct *napi,
-		     int *work_done,
-		     int budget)
+int aq_xdp_xmit(struct net_device *dev, int num_frames,
+		struct xdp_frame **frames, u32 flags)
+{
+	struct aq_nic_s *aq_nic = netdev_priv(dev);
+	unsigned int vec, i, drop = 0;
+	int cpu = smp_processor_id();
+	struct aq_nic_cfg_s *aq_cfg;
+	struct aq_ring_s *ring;
+
+	aq_cfg = aq_nic_get_cfg(aq_nic);
+	vec = cpu % aq_cfg->vecs;
+	ring = aq_nic->aq_ring_tx[AQ_NIC_CFG_TCVEC2RING(aq_cfg, 0, vec)];
+
+	for (i = 0; i < num_frames; i++) {
+		struct xdp_frame *xdpf = frames[i];
+
+		if (aq_nic_xmit_xdpf(aq_nic, ring, xdpf) == NETDEV_TX_BUSY)
+			drop++;
+	}
+
+	return num_frames - drop;
+}
+
+static struct sk_buff *aq_xdp_build_skb(struct xdp_buff *xdp,
+					struct net_device *dev,
+					struct aq_ring_buff_s *buff)
+{
+	struct xdp_frame *xdpf;
+	struct sk_buff *skb;
+
+	xdpf = xdp_convert_buff_to_frame(xdp);
+	if (unlikely(!xdpf))
+		return NULL;
+
+	skb = xdp_build_skb_from_frame(xdpf, dev);
+	if (!skb)
+		return NULL;
+
+	aq_get_rxpages_xdp(buff, xdp);
+	return skb;
+}
+
+static struct sk_buff *aq_xdp_run_prog(struct aq_nic_s *aq_nic,
+				       struct xdp_buff *xdp,
+				       struct aq_ring_s *rx_ring,
+				       struct aq_ring_buff_s *buff)
+{
+	int result = NETDEV_TX_BUSY;
+	struct aq_ring_s *tx_ring;
+	struct xdp_frame *xdpf;
+	struct bpf_prog *prog;
+	u32 act = XDP_ABORTED;
+	struct sk_buff *skb;
+
+	u64_stats_update_begin(&rx_ring->stats.rx.syncp);
+	++rx_ring->stats.rx.packets;
+	rx_ring->stats.rx.bytes += xdp_get_buff_len(xdp);
+	u64_stats_update_end(&rx_ring->stats.rx.syncp);
+
+	prog = READ_ONCE(rx_ring->xdp_prog);
+	if (!prog)
+		return aq_xdp_build_skb(xdp, aq_nic->ndev, buff);
+
+	prefetchw(xdp->data_hard_start); /* xdp_frame write */
+
+	/* single buffer XDP program, but packet is multi buffer, aborted */
+	if (xdp_buff_has_frags(xdp) && !prog->aux->xdp_has_frags)
+		goto out_aborted;
+
+	act = bpf_prog_run_xdp(prog, xdp);
+	switch (act) {
+	case XDP_PASS:
+		skb = aq_xdp_build_skb(xdp, aq_nic->ndev, buff);
+		if (!skb)
+			goto out_aborted;
+		u64_stats_update_begin(&rx_ring->stats.rx.syncp);
+		++rx_ring->stats.rx.xdp_pass;
+		u64_stats_update_end(&rx_ring->stats.rx.syncp);
+		return skb;
+	case XDP_TX:
+		xdpf = xdp_convert_buff_to_frame(xdp);
+		if (unlikely(!xdpf))
+			goto out_aborted;
+		tx_ring = aq_nic->aq_ring_tx[rx_ring->idx];
+		result = aq_nic_xmit_xdpf(aq_nic, tx_ring, xdpf);
+		if (result == NETDEV_TX_BUSY)
+			goto out_aborted;
+		u64_stats_update_begin(&rx_ring->stats.rx.syncp);
+		++rx_ring->stats.rx.xdp_tx;
+		u64_stats_update_end(&rx_ring->stats.rx.syncp);
+		aq_get_rxpages_xdp(buff, xdp);
+		break;
+	case XDP_REDIRECT:
+		if (xdp_do_redirect(aq_nic->ndev, xdp, prog) < 0)
+			goto out_aborted;
+		xdp_do_flush();
+		u64_stats_update_begin(&rx_ring->stats.rx.syncp);
+		++rx_ring->stats.rx.xdp_redirect;
+		u64_stats_update_end(&rx_ring->stats.rx.syncp);
+		aq_get_rxpages_xdp(buff, xdp);
+		break;
+	default:
+		fallthrough;
+	case XDP_ABORTED:
+out_aborted:
+		u64_stats_update_begin(&rx_ring->stats.rx.syncp);
+		++rx_ring->stats.rx.xdp_aborted;
+		u64_stats_update_end(&rx_ring->stats.rx.syncp);
+		trace_xdp_exception(aq_nic->ndev, prog, act);
+		bpf_warn_invalid_xdp_action(aq_nic->ndev, prog, act);
+		break;
+	case XDP_DROP:
+		u64_stats_update_begin(&rx_ring->stats.rx.syncp);
+		++rx_ring->stats.rx.xdp_drop;
+		u64_stats_update_end(&rx_ring->stats.rx.syncp);
+		break;
+	}
+
+	return ERR_PTR(-result);
+}
+
+static bool aq_add_rx_fragment(struct device *dev,
+			       struct aq_ring_s *ring,
+			       struct aq_ring_buff_s *buff,
+			       struct xdp_buff *xdp)
+{
+	struct skb_shared_info *sinfo = xdp_get_shared_info_from_buff(xdp);
+	struct aq_ring_buff_s *buff_ = buff;
+
+	memset(sinfo, 0, sizeof(*sinfo));
+	do {
+		skb_frag_t *frag;
+
+		if (unlikely(sinfo->nr_frags >= MAX_SKB_FRAGS))
+			return true;
+
+		frag = &sinfo->frags[sinfo->nr_frags++];
+		buff_ = &ring->buff_ring[buff_->next];
+		dma_sync_single_range_for_cpu(dev,
+					      buff_->rxdata.daddr,
+					      buff_->rxdata.pg_off,
+					      buff_->len,
+					      DMA_FROM_DEVICE);
+		sinfo->xdp_frags_size += buff_->len;
+		skb_frag_fill_page_desc(frag, buff_->rxdata.page,
+					buff_->rxdata.pg_off,
+					buff_->len);
+
+		buff_->is_cleaned = 1;
+
+		buff->is_ip_cso &= buff_->is_ip_cso;
+		buff->is_udp_cso &= buff_->is_udp_cso;
+		buff->is_tcp_cso &= buff_->is_tcp_cso;
+		buff->is_cso_err |= buff_->is_cso_err;
+
+		if (page_is_pfmemalloc(buff_->rxdata.page))
+			xdp_buff_set_frag_pfmemalloc(xdp);
+
+	} while (!buff_->is_eop);
+
+	xdp_buff_set_frags_flag(xdp);
+
+	return false;
+}
+
+static int __aq_ring_rx_clean(struct aq_ring_s *self, struct napi_struct *napi,
+			      int *work_done, int budget)
 {
 	struct net_device *ndev = aq_nic_get_ndev(self->aq_nic);
-	bool is_rsc_completed = true;
 	int err = 0;
 
 	for (; (self->sw_head != self->hw_head) && budget;
@@ -339,44 +546,65 @@ int aq_ring_rx_clean(struct aq_ring_s *self,
 			continue;
 
 		if (!buff->is_eop) {
+			unsigned int frag_cnt = 0U;
+
+			/* There will be an extra fragment */
+			if (buff->len > AQ_CFG_RX_HDR_SIZE)
+				frag_cnt++;
+
 			buff_ = buff;
 			do {
-				next_ = buff_->next,
+				bool is_rsc_completed = true;
+
+				if (buff_->next >= self->size) {
+					err = -EIO;
+					goto err_exit;
+				}
+
+				frag_cnt++;
+				next_ = buff_->next;
 				buff_ = &self->buff_ring[next_];
 				is_rsc_completed =
 					aq_ring_dx_in_range(self->sw_head,
 							    next_,
 							    self->hw_head);
 
-				if (unlikely(!is_rsc_completed))
-					break;
+				if (unlikely(!is_rsc_completed) ||
+						frag_cnt > MAX_SKB_FRAGS) {
+					err = 0;
+					goto err_exit;
+				}
 
 				buff->is_error |= buff_->is_error;
 				buff->is_cso_err |= buff_->is_cso_err;
 
 			} while (!buff_->is_eop);
 
-			if (!is_rsc_completed) {
-				err = 0;
-				goto err_exit;
-			}
 			if (buff->is_error ||
 			    (buff->is_lro && buff->is_cso_err)) {
 				buff_ = buff;
 				do {
-					next_ = buff_->next,
+					if (buff_->next >= self->size) {
+						err = -EIO;
+						goto err_exit;
+					}
+					next_ = buff_->next;
 					buff_ = &self->buff_ring[next_];
 
 					buff_->is_cleaned = true;
 				} while (!buff_->is_eop);
 
+				u64_stats_update_begin(&self->stats.rx.syncp);
 				++self->stats.rx.errors;
+				u64_stats_update_end(&self->stats.rx.syncp);
 				continue;
 			}
 		}
 
 		if (buff->is_error) {
+			u64_stats_update_begin(&self->stats.rx.syncp);
 			++self->stats.rx.errors;
+			u64_stats_update_end(&self->stats.rx.syncp);
 			continue;
 		}
 
@@ -385,79 +613,62 @@ int aq_ring_rx_clean(struct aq_ring_s *self,
 					      buff->rxdata.pg_off,
 					      buff->len, DMA_FROM_DEVICE);
 
-		/* for single fragment packets use build_skb() */
-		if (buff->is_eop &&
-		    buff->len <= AQ_CFG_RX_FRAME_MAX - AQ_SKB_ALIGN) {
-			skb = build_skb(aq_buf_vaddr(&buff->rxdata),
-					AQ_CFG_RX_FRAME_MAX);
-			if (unlikely(!skb)) {
-				err = -ENOMEM;
-				goto err_exit;
-			}
-			if (is_ptp_ring)
-				buff->len -=
-					aq_ptp_extract_ts(self->aq_nic, skb,
-						aq_buf_vaddr(&buff->rxdata),
-						buff->len);
-			skb_put(skb, buff->len);
+		skb = napi_alloc_skb(napi, AQ_CFG_RX_HDR_SIZE);
+		if (unlikely(!skb)) {
+			u64_stats_update_begin(&self->stats.rx.syncp);
+			self->stats.rx.skb_alloc_fails++;
+			u64_stats_update_end(&self->stats.rx.syncp);
+			err = -ENOMEM;
+			goto err_exit;
+		}
+		if (is_ptp_ring)
+			buff->len -=
+				aq_ptp_extract_ts(self->aq_nic, skb_hwtstamps(skb),
+						  aq_buf_vaddr(&buff->rxdata),
+						  buff->len);
+
+		hdr_len = buff->len;
+		if (hdr_len > AQ_CFG_RX_HDR_SIZE)
+			hdr_len = eth_get_headlen(skb->dev,
+						  aq_buf_vaddr(&buff->rxdata),
+						  AQ_CFG_RX_HDR_SIZE);
+
+		memcpy(__skb_put(skb, hdr_len), aq_buf_vaddr(&buff->rxdata),
+		       ALIGN(hdr_len, sizeof(long)));
+
+		if (buff->len - hdr_len > 0) {
+			skb_add_rx_frag(skb, i++, buff->rxdata.page,
+					buff->rxdata.pg_off + hdr_len,
+					buff->len - hdr_len,
+					self->frame_max);
 			page_ref_inc(buff->rxdata.page);
-		} else {
-			skb = napi_alloc_skb(napi, AQ_CFG_RX_HDR_SIZE);
-			if (unlikely(!skb)) {
-				err = -ENOMEM;
-				goto err_exit;
-			}
-			if (is_ptp_ring)
-				buff->len -=
-					aq_ptp_extract_ts(self->aq_nic, skb,
-						aq_buf_vaddr(&buff->rxdata),
-						buff->len);
-
-			hdr_len = buff->len;
-			if (hdr_len > AQ_CFG_RX_HDR_SIZE)
-				hdr_len = eth_get_headlen(skb->dev,
-							  aq_buf_vaddr(&buff->rxdata),
-							  AQ_CFG_RX_HDR_SIZE);
-
-			memcpy(__skb_put(skb, hdr_len), aq_buf_vaddr(&buff->rxdata),
-			       ALIGN(hdr_len, sizeof(long)));
-
-			if (buff->len - hdr_len > 0) {
-				skb_add_rx_frag(skb, 0, buff->rxdata.page,
-						buff->rxdata.pg_off + hdr_len,
-						buff->len - hdr_len,
-						AQ_CFG_RX_FRAME_MAX);
-				page_ref_inc(buff->rxdata.page);
-			}
+		}
 
-			if (!buff->is_eop) {
-				buff_ = buff;
-				i = 1U;
-				do {
-					next_ = buff_->next,
-					buff_ = &self->buff_ring[next_];
+		if (!buff->is_eop) {
+			buff_ = buff;
+			do {
+				next_ = buff_->next;
+				buff_ = &self->buff_ring[next_];
 
-					dma_sync_single_range_for_cpu(
-							aq_nic_get_dev(self->aq_nic),
-							buff_->rxdata.daddr,
-							buff_->rxdata.pg_off,
-							buff_->len,
-							DMA_FROM_DEVICE);
-					skb_add_rx_frag(skb, i++,
-							buff_->rxdata.page,
-							buff_->rxdata.pg_off,
-							buff_->len,
-							AQ_CFG_RX_FRAME_MAX);
-					page_ref_inc(buff_->rxdata.page);
-					buff_->is_cleaned = 1;
-
-					buff->is_ip_cso &= buff_->is_ip_cso;
-					buff->is_udp_cso &= buff_->is_udp_cso;
-					buff->is_tcp_cso &= buff_->is_tcp_cso;
-					buff->is_cso_err |= buff_->is_cso_err;
+				dma_sync_single_range_for_cpu(aq_nic_get_dev(self->aq_nic),
+							      buff_->rxdata.daddr,
+							      buff_->rxdata.pg_off,
+							      buff_->len,
+							      DMA_FROM_DEVICE);
+				skb_add_rx_frag(skb, i++,
+						buff_->rxdata.page,
+						buff_->rxdata.pg_off,
+						buff_->len,
+						self->frame_max);
+				page_ref_inc(buff_->rxdata.page);
+				buff_->is_cleaned = 1;
+
+				buff->is_ip_cso &= buff_->is_ip_cso;
+				buff->is_udp_cso &= buff_->is_udp_cso;
+				buff->is_tcp_cso &= buff_->is_tcp_cso;
+				buff->is_cso_err |= buff_->is_cso_err;
 
-				} while (!buff_->is_eop);
-			}
+			} while (!buff_->is_eop);
 		}
 
 		if (buff->is_vlan)
@@ -477,8 +688,148 @@ int aq_ring_rx_clean(struct aq_ring_s *self,
 						: AQ_NIC_RING2QMAP(self->aq_nic,
 								   self->idx));
 
+		u64_stats_update_begin(&self->stats.rx.syncp);
 		++self->stats.rx.packets;
 		self->stats.rx.bytes += skb->len;
+		u64_stats_update_end(&self->stats.rx.syncp);
+
+		napi_gro_receive(napi, skb);
+	}
+
+err_exit:
+	return err;
+}
+
+static int __aq_ring_xdp_clean(struct aq_ring_s *rx_ring,
+			       struct napi_struct *napi, int *work_done,
+			       int budget)
+{
+	int frame_sz = rx_ring->page_offset + rx_ring->frame_max +
+		       rx_ring->tail_size;
+	struct aq_nic_s *aq_nic = rx_ring->aq_nic;
+	bool is_rsc_completed = true;
+	struct device *dev;
+	int err = 0;
+
+	dev = aq_nic_get_dev(aq_nic);
+	for (; (rx_ring->sw_head != rx_ring->hw_head) && budget;
+		rx_ring->sw_head = aq_ring_next_dx(rx_ring, rx_ring->sw_head),
+		--budget, ++(*work_done)) {
+		struct aq_ring_buff_s *buff = &rx_ring->buff_ring[rx_ring->sw_head];
+		bool is_ptp_ring = aq_ptp_ring(rx_ring->aq_nic, rx_ring);
+		struct aq_ring_buff_s *buff_ = NULL;
+		u16 ptp_hwtstamp_len = 0;
+		struct skb_shared_hwtstamps shhwtstamps;
+		struct sk_buff *skb = NULL;
+		unsigned int next_ = 0U;
+		struct xdp_buff xdp;
+		void *hard_start;
+
+		if (buff->is_cleaned)
+			continue;
+
+		if (!buff->is_eop) {
+			buff_ = buff;
+			do {
+				if (buff_->next >= rx_ring->size) {
+					err = -EIO;
+					goto err_exit;
+				}
+				next_ = buff_->next;
+				buff_ = &rx_ring->buff_ring[next_];
+				is_rsc_completed =
+					aq_ring_dx_in_range(rx_ring->sw_head,
+							    next_,
+							    rx_ring->hw_head);
+
+				if (unlikely(!is_rsc_completed))
+					break;
+
+				buff->is_error |= buff_->is_error;
+				buff->is_cso_err |= buff_->is_cso_err;
+			} while (!buff_->is_eop);
+
+			if (!is_rsc_completed) {
+				err = 0;
+				goto err_exit;
+			}
+			if (buff->is_error ||
+			    (buff->is_lro && buff->is_cso_err)) {
+				buff_ = buff;
+				do {
+					if (buff_->next >= rx_ring->size) {
+						err = -EIO;
+						goto err_exit;
+					}
+					next_ = buff_->next;
+					buff_ = &rx_ring->buff_ring[next_];
+
+					buff_->is_cleaned = true;
+				} while (!buff_->is_eop);
+
+				u64_stats_update_begin(&rx_ring->stats.rx.syncp);
+				++rx_ring->stats.rx.errors;
+				u64_stats_update_end(&rx_ring->stats.rx.syncp);
+				continue;
+			}
+		}
+
+		if (buff->is_error) {
+			u64_stats_update_begin(&rx_ring->stats.rx.syncp);
+			++rx_ring->stats.rx.errors;
+			u64_stats_update_end(&rx_ring->stats.rx.syncp);
+			continue;
+		}
+
+		dma_sync_single_range_for_cpu(dev,
+					      buff->rxdata.daddr,
+					      buff->rxdata.pg_off,
+					      buff->len, DMA_FROM_DEVICE);
+		hard_start = page_address(buff->rxdata.page) +
+			     buff->rxdata.pg_off - rx_ring->page_offset;
+
+		if (is_ptp_ring) {
+			ptp_hwtstamp_len = aq_ptp_extract_ts(rx_ring->aq_nic, &shhwtstamps,
+							     aq_buf_vaddr(&buff->rxdata),
+							     buff->len);
+			buff->len -= ptp_hwtstamp_len;
+		}
+
+		xdp_init_buff(&xdp, frame_sz, &rx_ring->xdp_rxq);
+		xdp_prepare_buff(&xdp, hard_start, rx_ring->page_offset,
+				 buff->len, false);
+		if (!buff->is_eop) {
+			if (aq_add_rx_fragment(dev, rx_ring, buff, &xdp)) {
+				u64_stats_update_begin(&rx_ring->stats.rx.syncp);
+				++rx_ring->stats.rx.packets;
+				rx_ring->stats.rx.bytes += xdp_get_buff_len(&xdp);
+				++rx_ring->stats.rx.xdp_aborted;
+				u64_stats_update_end(&rx_ring->stats.rx.syncp);
+				continue;
+			}
+		}
+
+		skb = aq_xdp_run_prog(aq_nic, &xdp, rx_ring, buff);
+		if (IS_ERR(skb) || !skb)
+			continue;
+
+		if (ptp_hwtstamp_len > 0)
+			*skb_hwtstamps(skb) = shhwtstamps;
+
+		if (buff->is_vlan)
+			__vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q),
+					       buff->vlan_rx_tag);
+
+		aq_rx_checksum(rx_ring, buff, skb);
+
+		skb_set_hash(skb, buff->rss_hash,
+			     buff->is_hash_l4 ? PKT_HASH_TYPE_L4 :
+			     PKT_HASH_TYPE_NONE);
+		/* Send all PTP traffic to 0 queue */
+		skb_record_rx_queue(skb,
+				    is_ptp_ring ? 0
+						: AQ_NIC_RING2QMAP(rx_ring->aq_nic,
+								   rx_ring->idx));
 
 		napi_gro_receive(napi, skb);
 	}
@@ -487,8 +838,20 @@ err_exit:
 	return err;
 }
 
+int aq_ring_rx_clean(struct aq_ring_s *self,
+		     struct napi_struct *napi,
+		     int *work_done,
+		     int budget)
+{
+	if (static_branch_unlikely(&aq_xdp_locking_key))
+		return __aq_ring_xdp_clean(self, napi, work_done, budget);
+	else
+		return __aq_ring_rx_clean(self, napi, work_done, budget);
+}
+
 void aq_ring_hwts_rx_clean(struct aq_ring_s *self, struct aq_nic_s *aq_nic)
 {
+#if IS_REACHABLE(CONFIG_PTP_1588_CLOCK)
 	while (self->sw_head != self->hw_head) {
 		u64 ns;
 
@@ -500,11 +863,11 @@ void aq_ring_hwts_rx_clean(struct aq_ring_s *self, struct aq_nic_s *aq_nic)
 
 		self->sw_head = aq_ring_next_dx(self, self->sw_head);
 	}
+#endif
 }
 
 int aq_ring_rx_fill(struct aq_ring_s *self)
 {
-	unsigned int page_order = self->page_order;
 	struct aq_ring_buff_s *buff = NULL;
 	int err = 0;
 	int i = 0;
@@ -518,9 +881,9 @@ int aq_ring_rx_fill(struct aq_ring_s *self)
 		buff = &self->buff_ring[self->sw_tail];
 
 		buff->flags = 0U;
-		buff->len = AQ_CFG_RX_FRAME_MAX;
+		buff->len = self->frame_max;
 
-		err = aq_get_rxpages(self, buff, page_order);
+		err = aq_get_rxpages(self, buff);
 		if (err)
 			goto err_exit;
 
@@ -535,7 +898,7 @@ err_exit:
 void aq_ring_rx_deinit(struct aq_ring_s *self)
 {
 	if (!self)
-		goto err_exit;
+		return;
 
 	for (; self->sw_head != self->sw_tail;
 		self->sw_head = aq_ring_next_dx(self, self->sw_head)) {
@@ -543,21 +906,73 @@ void aq_ring_rx_deinit(struct aq_ring_s *self)
 
 		aq_free_rxpage(&buff->rxdata, aq_nic_get_dev(self->aq_nic));
 	}
-
-err_exit:;
 }
 
 void aq_ring_free(struct aq_ring_s *self)
 {
 	if (!self)
-		goto err_exit;
+		return;
 
 	kfree(self->buff_ring);
+	self->buff_ring = NULL;
 
-	if (self->dx_ring)
+	if (self->dx_ring) {
 		dma_free_coherent(aq_nic_get_dev(self->aq_nic),
 				  self->size * self->dx_size, self->dx_ring,
 				  self->dx_ring_pa);
+		self->dx_ring = NULL;
+	}
+}
+
+void aq_ring_hwts_rx_free(struct aq_ring_s *self)
+{
+	if (!self)
+		return;
+
+	if (self->dx_ring) {
+		dma_free_coherent(aq_nic_get_dev(self->aq_nic),
+				  self->size * self->dx_size + AQ_CFG_RXDS_DEF,
+				  self->dx_ring, self->dx_ring_pa);
+		self->dx_ring = NULL;
+	}
+}
+
+unsigned int aq_ring_fill_stats_data(struct aq_ring_s *self, u64 *data)
+{
+	unsigned int count;
+	unsigned int start;
+
+	if (self->ring_type == ATL_RING_RX) {
+		/* This data should mimic aq_ethtool_queue_rx_stat_names structure */
+		do {
+			count = 0;
+			start = u64_stats_fetch_begin(&self->stats.rx.syncp);
+			data[count] = self->stats.rx.packets;
+			data[++count] = self->stats.rx.jumbo_packets;
+			data[++count] = self->stats.rx.lro_packets;
+			data[++count] = self->stats.rx.errors;
+			data[++count] = self->stats.rx.alloc_fails;
+			data[++count] = self->stats.rx.skb_alloc_fails;
+			data[++count] = self->stats.rx.polls;
+			data[++count] = self->stats.rx.pg_flips;
+			data[++count] = self->stats.rx.pg_reuses;
+			data[++count] = self->stats.rx.pg_losts;
+			data[++count] = self->stats.rx.xdp_aborted;
+			data[++count] = self->stats.rx.xdp_drop;
+			data[++count] = self->stats.rx.xdp_pass;
+			data[++count] = self->stats.rx.xdp_tx;
+			data[++count] = self->stats.rx.xdp_invalid;
+			data[++count] = self->stats.rx.xdp_redirect;
+		} while (u64_stats_fetch_retry(&self->stats.rx.syncp, start));
+	} else {
+		/* This data should mimic aq_ethtool_queue_tx_stat_names structure */
+		do {
+			count = 0;
+			start = u64_stats_fetch_begin(&self->stats.tx.syncp);
+			data[count] = self->stats.tx.packets;
+			data[++count] = self->stats.tx.queue_restarts;
+		} while (u64_stats_fetch_retry(&self->stats.tx.syncp, start));
+	}
 
-err_exit:;
+	return ++count;
 }