diff options
Diffstat (limited to 'drivers/net/ethernet/microsoft/mana/mana_en.c')
| -rw-r--r-- | drivers/net/ethernet/microsoft/mana/mana_en.c | 38 |
1 files changed, 28 insertions, 10 deletions
diff --git a/drivers/net/ethernet/microsoft/mana/mana_en.c b/drivers/net/ethernet/microsoft/mana/mana_en.c index 911954ff84ee..8e7fa6e9c3b5 100644 --- a/drivers/net/ethernet/microsoft/mana/mana_en.c +++ b/drivers/net/ethernet/microsoft/mana/mana_en.c @@ -1185,10 +1185,10 @@ static void mana_post_pkt_rxq(struct mana_rxq *rxq) WARN_ON_ONCE(recv_buf_oob->wqe_inf.wqe_size_in_bu != 1); } -static struct sk_buff *mana_build_skb(void *buf_va, uint pkt_len, - struct xdp_buff *xdp) +static struct sk_buff *mana_build_skb(struct mana_rxq *rxq, void *buf_va, + uint pkt_len, struct xdp_buff *xdp) { - struct sk_buff *skb = napi_build_skb(buf_va, PAGE_SIZE); + struct sk_buff *skb = napi_build_skb(buf_va, rxq->alloc_size); if (!skb) return NULL; @@ -1196,11 +1196,12 @@ static struct sk_buff *mana_build_skb(void *buf_va, uint pkt_len, if (xdp->data_hard_start) { skb_reserve(skb, xdp->data - xdp->data_hard_start); skb_put(skb, xdp->data_end - xdp->data); - } else { - skb_reserve(skb, XDP_PACKET_HEADROOM); - skb_put(skb, pkt_len); + return skb; } + skb_reserve(skb, rxq->headroom); + skb_put(skb, pkt_len); + return skb; } @@ -1233,7 +1234,7 @@ static void mana_rx_skb(void *buf_va, struct mana_rxcomp_oob *cqe, if (act != XDP_PASS && act != XDP_TX) goto drop_xdp; - skb = mana_build_skb(buf_va, pkt_len, &xdp); + skb = mana_build_skb(rxq, buf_va, pkt_len, &xdp); if (!skb) goto drop; @@ -1301,6 +1302,14 @@ static void *mana_get_rxfrag(struct mana_rxq *rxq, struct device *dev, if (rxq->xdp_save_va) { va = rxq->xdp_save_va; rxq->xdp_save_va = NULL; + } else if (rxq->alloc_size > PAGE_SIZE) { + if (is_napi) + va = napi_alloc_frag(rxq->alloc_size); + else + va = netdev_alloc_frag(rxq->alloc_size); + + if (!va) + return NULL; } else { page = dev_alloc_page(); if (!page) @@ -1309,7 +1318,7 @@ static void *mana_get_rxfrag(struct mana_rxq *rxq, struct device *dev, va = page_to_virt(page); } - *da = dma_map_single(dev, va + XDP_PACKET_HEADROOM, rxq->datasize, + *da = dma_map_single(dev, va + rxq->headroom, rxq->datasize, DMA_FROM_DEVICE); if (dma_mapping_error(dev, *da)) { @@ -1732,7 +1741,7 @@ static int mana_alloc_rx_wqe(struct mana_port_context *apc, u32 buf_idx; int ret; - WARN_ON(rxq->datasize == 0 || rxq->datasize > PAGE_SIZE); + WARN_ON(rxq->datasize == 0); *rxq_size = 0; *cq_size = 0; @@ -1788,6 +1797,7 @@ static struct mana_rxq *mana_create_rxq(struct mana_port_context *apc, struct gdma_dev *gd = apc->ac->gdma_dev; struct mana_obj_spec wq_spec; struct mana_obj_spec cq_spec; + unsigned int mtu = ndev->mtu; struct gdma_queue_spec spec; struct mana_cq *cq = NULL; struct gdma_context *gc; @@ -1807,7 +1817,15 @@ static struct mana_rxq *mana_create_rxq(struct mana_port_context *apc, rxq->rxq_idx = rxq_idx; rxq->rxobj = INVALID_MANA_HANDLE; - rxq->datasize = ALIGN(ETH_FRAME_LEN, 64); + rxq->datasize = ALIGN(mtu + ETH_HLEN, 64); + + if (mtu > MANA_XDP_MTU_MAX) { + rxq->alloc_size = mtu + MANA_RXBUF_PAD; + rxq->headroom = 0; + } else { + rxq->alloc_size = mtu + MANA_RXBUF_PAD + XDP_PACKET_HEADROOM; + rxq->headroom = XDP_PACKET_HEADROOM; + } err = mana_alloc_rx_wqe(apc, rxq, &rq_size, &cq_size); if (err) |