diff options
| -rw-r--r-- | drivers/net/ethernet/amazon/ena/ena_admin_defs.h | 5 | ||||
| -rw-r--r-- | drivers/net/ethernet/amazon/ena/ena_netdev.c | 15 |
2 files changed, 13 insertions, 7 deletions
diff --git a/drivers/net/ethernet/amazon/ena/ena_admin_defs.h b/drivers/net/ethernet/amazon/ena/ena_admin_defs.h index 336742f6e3c3..afe87ff09b20 100644 --- a/drivers/net/ethernet/amazon/ena/ena_admin_defs.h +++ b/drivers/net/ethernet/amazon/ena/ena_admin_defs.h @@ -816,7 +816,8 @@ struct ena_admin_host_info { /* 0 : reserved * 1 : rx_offset * 2 : interrupt_moderation - * 31:3 : reserved + * 3 : rx_buf_mirroring + * 31:4 : reserved */ u32 driver_supported_features; }; @@ -1129,6 +1130,8 @@ struct ena_admin_ena_mmio_req_read_less_resp { #define ENA_ADMIN_HOST_INFO_RX_OFFSET_MASK BIT(1) #define ENA_ADMIN_HOST_INFO_INTERRUPT_MODERATION_SHIFT 2 #define ENA_ADMIN_HOST_INFO_INTERRUPT_MODERATION_MASK BIT(2) +#define ENA_ADMIN_HOST_INFO_RX_BUF_MIRRORING_SHIFT 3 +#define ENA_ADMIN_HOST_INFO_RX_BUF_MIRRORING_MASK BIT(3) /* aenq_common_desc */ #define ENA_ADMIN_AENQ_COMMON_DESC_PHASE_MASK BIT(0) diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.c b/drivers/net/ethernet/amazon/ena/ena_netdev.c index d3d2e3934237..0563cb3125db 100644 --- a/drivers/net/ethernet/amazon/ena/ena_netdev.c +++ b/drivers/net/ethernet/amazon/ena/ena_netdev.c @@ -959,8 +959,11 @@ static int ena_alloc_rx_page(struct ena_ring *rx_ring, return -ENOMEM; } + /* To enable NIC-side port-mirroring, AKA SPAN port, + * we make the buffer readable from the nic as well + */ dma = dma_map_page(rx_ring->dev, page, 0, ENA_PAGE_SIZE, - DMA_FROM_DEVICE); + DMA_BIDIRECTIONAL); if (unlikely(dma_mapping_error(rx_ring->dev, dma))) { u64_stats_update_begin(&rx_ring->syncp); rx_ring->rx_stats.dma_mapping_err++; @@ -993,10 +996,9 @@ static void ena_free_rx_page(struct ena_ring *rx_ring, return; } - dma_unmap_page(rx_ring->dev, - ena_buf->paddr - rx_ring->rx_headroom, + dma_unmap_page(rx_ring->dev, ena_buf->paddr - rx_ring->rx_headroom, ENA_PAGE_SIZE, - DMA_FROM_DEVICE); + DMA_BIDIRECTIONAL); __free_page(page); rx_info->page = NULL; @@ -1431,7 +1433,7 @@ static struct sk_buff *ena_rx_skb(struct ena_ring *rx_ring, do { dma_unmap_page(rx_ring->dev, dma_unmap_addr(&rx_info->ena_buf, paddr), - ENA_PAGE_SIZE, DMA_FROM_DEVICE); + ENA_PAGE_SIZE, DMA_BIDIRECTIONAL); skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags, rx_info->page, rx_info->page_offset, len, ENA_PAGE_SIZE); @@ -3123,7 +3125,8 @@ static void ena_config_host_info(struct ena_com_dev *ena_dev, struct pci_dev *pd host_info->driver_supported_features = ENA_ADMIN_HOST_INFO_RX_OFFSET_MASK | - ENA_ADMIN_HOST_INFO_INTERRUPT_MODERATION_MASK; + ENA_ADMIN_HOST_INFO_INTERRUPT_MODERATION_MASK | + ENA_ADMIN_HOST_INFO_RX_BUF_MIRRORING_MASK; rc = ena_com_set_host_attributes(ena_dev); if (rc) { |