1 files changed, 73 insertions, 18 deletions

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c
index 299822cacca4..9e5009be8e98 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c
@@ -15,8 +15,9 @@
 #include <linux/bpf.h>
 #include <linux/bpf_trace.h>
 #include <linux/filter.h>
+#include <net/netdev_lock.h>
 #include <net/page_pool/helpers.h>
-#include "bnxt_hsi.h"
+#include <linux/bnxt/hsi.h>
 #include "bnxt.h"
 #include "bnxt_xdp.h"
 
@@ -48,8 +49,7 @@ struct bnxt_sw_tx_bd *bnxt_xmit_bd(struct bnxt *bp,
 		tx_buf->page = virt_to_head_page(xdp->data);
 
 	txbd = &txr->tx_desc_ring[TX_RING(bp, prod)][TX_IDX(prod)];
-	flags = (len << TX_BD_LEN_SHIFT) |
-		((num_frags + 1) << TX_BD_FLAGS_BD_CNT_SHIFT) |
+	flags = (len << TX_BD_LEN_SHIFT) | TX_BD_CNT(num_frags + 1) |
 		bnxt_lhint_arr[len >> 9];
 	txbd->tx_bd_len_flags_type = cpu_to_le32(flags);
 	txbd->tx_bd_opaque = SET_TX_OPAQUE(bp, txr, prod, 1 + num_frags);
@@ -115,7 +115,7 @@ static void __bnxt_xmit_xdp_redirect(struct bnxt *bp,
 	tx_buf->action = XDP_REDIRECT;
 	tx_buf->xdpf = xdpf;
 	dma_unmap_addr_set(tx_buf, mapping, mapping);
-	dma_unmap_len_set(tx_buf, len, 0);
+	dma_unmap_len_set(tx_buf, len, len);
 }
 
 void bnxt_tx_int_xdp(struct bnxt *bp, struct bnxt_napi *bnapi, int budget)
@@ -183,7 +183,7 @@ void bnxt_xdp_buff_init(struct bnxt *bp, struct bnxt_rx_ring_info *rxr,
 			u16 cons, u8 *data_ptr, unsigned int len,
 			struct xdp_buff *xdp)
 {
-	u32 buflen = BNXT_RX_PAGE_SIZE;
+	u32 buflen = rxr->rx_page_size;
 	struct bnxt_sw_rx_bd *rx_buf;
 	struct pci_dev *pdev;
 	dma_addr_t mapping;
@@ -268,13 +268,11 @@ bool bnxt_rx_xdp(struct bnxt *bp, struct bnxt_rx_ring_info *rxr, u16 cons,
 	case XDP_TX:
 		rx_buf = &rxr->rx_buf_ring[cons];
 		mapping = rx_buf->mapping - bp->rx_dma_offset;
-		*event &= BNXT_TX_CMP_EVENT;
 
 		if (unlikely(xdp_buff_has_frags(xdp))) {
 			struct skb_shared_info *sinfo = xdp_get_shared_info_from_buff(xdp);
 
 			tx_needed += sinfo->nr_frags;
-			*event = BNXT_AGG_EVENT;
 		}
 
 		if (tx_avail < tx_needed) {
@@ -287,6 +285,7 @@ bool bnxt_rx_xdp(struct bnxt *bp, struct bnxt_rx_ring_info *rxr, u16 cons,
 		dma_sync_single_for_device(&pdev->dev, mapping + offset, *len,
 					   bp->rx_dir);
 
+		*event &= ~BNXT_RX_EVENT;
 		*event |= BNXT_TX_EVENT;
 		__bnxt_xmit_xdp(bp, txr, mapping + offset, *len,
 				NEXT_RX(rxr->rx_prod), xdp);
@@ -382,13 +381,14 @@ int bnxt_xdp_xmit(struct net_device *dev, int num_frames,
 	return nxmit;
 }
 
-/* Under rtnl_lock */
 static int bnxt_xdp_set(struct bnxt *bp, struct bpf_prog *prog)
 {
 	struct net_device *dev = bp->dev;
-	int tx_xdp = 0, tx_cp, rc, tc;
+	int tx_xdp = 0, rc, tc;
 	struct bpf_prog *old;
 
+	netdev_assert_locked(dev);
+
 	if (prog && !prog->aux->xdp_has_frags &&
 	    bp->dev->mtu > BNXT_MAX_PAGE_MODE_MTU) {
 		netdev_warn(dev, "MTU %d larger than %d without XDP frag support.\n",
@@ -424,15 +424,14 @@ static int bnxt_xdp_set(struct bnxt *bp, struct bpf_prog *prog)
 
 	if (prog) {
 		bnxt_set_rx_skb_mode(bp, true);
-		xdp_features_set_redirect_target(dev, true);
+		xdp_features_set_redirect_target_locked(dev, true);
 	} else {
-		xdp_features_clear_redirect_target(dev);
+		xdp_features_clear_redirect_target_locked(dev);
 		bnxt_set_rx_skb_mode(bp, false);
 	}
 	bp->tx_nr_rings_xdp = tx_xdp;
 	bp->tx_nr_rings = bp->tx_nr_rings_per_tc * tc + tx_xdp;
-	tx_cp = bnxt_num_tx_to_cp(bp, bp->tx_nr_rings);
-	bp->cp_nr_rings = max_t(int, tx_cp, bp->rx_nr_rings);
+	bnxt_set_cp_rings(bp, true);
 	bnxt_set_tpa_flags(bp);
 	bnxt_set_ring_params(bp);
 
@@ -460,16 +459,72 @@ int bnxt_xdp(struct net_device *dev, struct netdev_bpf *xdp)
 
 struct sk_buff *
 bnxt_xdp_build_skb(struct bnxt *bp, struct sk_buff *skb, u8 num_frags,
-		   struct page_pool *pool, struct xdp_buff *xdp)
+		   struct bnxt_rx_ring_info *rxr, struct xdp_buff *xdp)
 {
 	struct skb_shared_info *sinfo = xdp_get_shared_info_from_buff(xdp);
 
 	if (!skb)
 		return NULL;
 
-	xdp_update_skb_shared_info(skb, num_frags,
-				   sinfo->xdp_frags_size,
-				   BNXT_RX_PAGE_SIZE * num_frags,
-				   xdp_buff_is_frag_pfmemalloc(xdp));
+	xdp_update_skb_frags_info(skb, num_frags, sinfo->xdp_frags_size,
+				  rxr->rx_page_size * num_frags,
+				  xdp_buff_get_skb_flags(xdp));
 	return skb;
 }
+
+int bnxt_xdp_rx_hash(const struct xdp_md *ctx, u32 *hash,
+		     enum xdp_rss_hash_type *rss_type)
+{
+	const struct bnxt_xdp_buff *xdp = (void *)ctx;
+	const struct rx_cmp_ext *rxcmp1 = xdp->rxcmp1;
+	const struct rx_cmp *rxcmp = xdp->rxcmp;
+	enum xdp_rss_hash_type hash_type = 0;
+	u32 itypes;
+
+	if (!rxcmp || !RX_CMP_HASH_VALID(rxcmp))
+		return -ENODATA;
+
+	*hash = le32_to_cpu(rxcmp->rx_cmp_rss_hash);
+
+	if (!rxcmp1) {
+		*rss_type = XDP_RSS_TYPE_L2;
+		return 0;
+	}
+
+	if (xdp->cmp_type == CMP_TYPE_RX_L2_CMP) {
+		itypes = RX_CMP_ITYPES(rxcmp);
+		if (rxcmp1->rx_cmp_flags2 &
+		    cpu_to_le32(RX_CMP_FLAGS2_IP_TYPE)) {
+			hash_type |= XDP_RSS_TYPE_L3_IPV6;
+		} else {
+			hash_type |= XDP_RSS_TYPE_L3_IPV4;
+		}
+
+		switch (itypes) {
+		case RX_CMP_FLAGS_ITYPE_TCP:
+			hash_type |= XDP_RSS_L4 | XDP_RSS_L4_TCP;
+			break;
+		case RX_CMP_FLAGS_ITYPE_UDP:
+			hash_type |= XDP_RSS_L4 | XDP_RSS_L4_UDP;
+			break;
+		case RX_CMP_FLAGS_ITYPE_ICMP:
+			hash_type |= XDP_RSS_L4 | XDP_RSS_L4_ICMP;
+			break;
+		default:
+			break;
+		}
+	} else if (xdp->cmp_type == CMP_TYPE_RX_L2_V3_CMP) {
+		struct bnxt *bp = netdev_priv(xdp->xdp.rxq->dev);
+
+		if (rxcmp1->rx_cmp_flags2 & cpu_to_le32(RX_CMP_FLAGS2_IP_TYPE))
+			hash_type |= XDP_RSS_TYPE_L3_IPV6;
+		else
+			hash_type |= XDP_RSS_TYPE_L3_IPV4;
+
+		if (bnxt_rss_ext_op(bp, rxcmp) == PKT_HASH_TYPE_L4)
+			hash_type |= XDP_RSS_L4;
+	}
+
+	*rss_type = hash_type;
+	return 0;
+}