/* 0 : reserved
* 1 : rx_offset
* 2 : interrupt_moderation
- * 31:3 : reserved
+ * 3 : rx_buf_mirroring
+ * 31:4 : reserved
*/
u32 driver_supported_features;
};
#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)
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++;
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;
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);
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) {