diff options
| -rw-r--r-- | drivers/net/ethernet/marvell/mvneta.c | 62 | ||||
| -rw-r--r-- | drivers/net/ethernet/marvell/mvneta_bm.h | 3 |
2 files changed, 24 insertions, 41 deletions
diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c index da2d56826295..6af583ef2af2 100644 --- a/drivers/net/ethernet/marvell/mvneta.c +++ b/drivers/net/ethernet/marvell/mvneta.c @@ -1795,47 +1795,30 @@ static void mvneta_txq_done(struct mvneta_port *pp, } } -void *mvneta_frag_alloc(unsigned int frag_size) -{ - if (likely(frag_size <= PAGE_SIZE)) - return netdev_alloc_frag(frag_size); - else - return kmalloc(frag_size, GFP_ATOMIC); -} -EXPORT_SYMBOL_GPL(mvneta_frag_alloc); - -void mvneta_frag_free(unsigned int frag_size, void *data) -{ - if (likely(frag_size <= PAGE_SIZE)) - skb_free_frag(data); - else - kfree(data); -} -EXPORT_SYMBOL_GPL(mvneta_frag_free); - /* Refill processing for SW buffer management */ +/* Allocate page per descriptor */ static int mvneta_rx_refill(struct mvneta_port *pp, struct mvneta_rx_desc *rx_desc, - struct mvneta_rx_queue *rxq) - + struct mvneta_rx_queue *rxq, + gfp_t gfp_mask) { dma_addr_t phys_addr; - void *data; + struct page *page; - data = mvneta_frag_alloc(pp->frag_size); - if (!data) + page = __dev_alloc_page(gfp_mask); + if (!page) return -ENOMEM; - phys_addr = dma_map_single(pp->dev->dev.parent, data, - MVNETA_RX_BUF_SIZE(pp->pkt_size), - DMA_FROM_DEVICE); + /* map page for use */ + phys_addr = dma_map_page(pp->dev->dev.parent, page, 0, PAGE_SIZE, + DMA_FROM_DEVICE); if (unlikely(dma_mapping_error(pp->dev->dev.parent, phys_addr))) { - mvneta_frag_free(pp->frag_size, data); + __free_page(page); return -ENOMEM; } phys_addr += pp->rx_offset_correction; - mvneta_rx_desc_fill(rx_desc, phys_addr, data, rxq); + mvneta_rx_desc_fill(rx_desc, phys_addr, page, rxq); return 0; } @@ -1901,7 +1884,7 @@ static void mvneta_rxq_drop_pkts(struct mvneta_port *pp, dma_unmap_single(pp->dev->dev.parent, rx_desc->buf_phys_addr, MVNETA_RX_BUF_SIZE(pp->pkt_size), DMA_FROM_DEVICE); - mvneta_frag_free(pp->frag_size, data); + __free_page(data); } } @@ -1928,6 +1911,7 @@ static int mvneta_rx_swbm(struct napi_struct *napi, struct mvneta_rx_desc *rx_desc = mvneta_rxq_next_desc_get(rxq); struct sk_buff *skb; unsigned char *data; + struct page *page; dma_addr_t phys_addr; u32 rx_status, frag_size; int rx_bytes, err, index; @@ -1936,7 +1920,10 @@ static int mvneta_rx_swbm(struct napi_struct *napi, rx_status = rx_desc->status; rx_bytes = rx_desc->data_size - (ETH_FCS_LEN + MVNETA_MH_SIZE); index = rx_desc - rxq->descs; - data = rxq->buf_virt_addr[index]; + page = (struct page *)rxq->buf_virt_addr[index]; + data = page_address(page); + /* Prefetch header */ + prefetch(data); phys_addr = rx_desc->buf_phys_addr - pp->rx_offset_correction; if (!mvneta_rxq_desc_is_first_last(rx_status) || @@ -1979,7 +1966,7 @@ err_drop_frame: } /* Refill processing */ - err = mvneta_rx_refill(pp, rx_desc, rxq); + err = mvneta_rx_refill(pp, rx_desc, rxq, GFP_KERNEL); if (err) { netdev_err(dev, "Linux processing - Can't refill\n"); rxq->refill_err++; @@ -2773,9 +2760,11 @@ static int mvneta_rxq_fill(struct mvneta_port *pp, struct mvneta_rx_queue *rxq, for (i = 0; i < num; i++) { memset(rxq->descs + i, 0, sizeof(struct mvneta_rx_desc)); - if (mvneta_rx_refill(pp, rxq->descs + i, rxq) != 0) { - netdev_err(pp->dev, "%s:rxq %d, %d of %d buffs filled\n", - __func__, rxq->id, i, num); + if (mvneta_rx_refill(pp, rxq->descs + i, rxq, + GFP_KERNEL) != 0) { + netdev_err(pp->dev, + "%s:rxq %d, %d of %d buffs filled\n", + __func__, rxq->id, i, num); break; } } @@ -3189,8 +3178,6 @@ static int mvneta_change_mtu(struct net_device *dev, int mtu) mvneta_bm_update_mtu(pp, mtu); pp->pkt_size = MVNETA_RX_PKT_SIZE(dev->mtu); - pp->frag_size = SKB_DATA_ALIGN(MVNETA_RX_BUF_SIZE(pp->pkt_size)) + - SKB_DATA_ALIGN(sizeof(struct skb_shared_info)); ret = mvneta_setup_rxqs(pp); if (ret) { @@ -3677,8 +3664,7 @@ static int mvneta_open(struct net_device *dev) int ret; pp->pkt_size = MVNETA_RX_PKT_SIZE(pp->dev->mtu); - pp->frag_size = SKB_DATA_ALIGN(MVNETA_RX_BUF_SIZE(pp->pkt_size)) + - SKB_DATA_ALIGN(sizeof(struct skb_shared_info)); + pp->frag_size = PAGE_SIZE; ret = mvneta_setup_rxqs(pp); if (ret) diff --git a/drivers/net/ethernet/marvell/mvneta_bm.h b/drivers/net/ethernet/marvell/mvneta_bm.h index 9358626e51ec..c8425d35c049 100644 --- a/drivers/net/ethernet/marvell/mvneta_bm.h +++ b/drivers/net/ethernet/marvell/mvneta_bm.h @@ -130,9 +130,6 @@ struct mvneta_bm_pool { }; /* Declarations and definitions */ -void *mvneta_frag_alloc(unsigned int frag_size); -void mvneta_frag_free(unsigned int frag_size, void *data); - #if IS_ENABLED(CONFIG_MVNETA_BM) struct mvneta_bm *mvneta_bm_get(struct device_node *node); void mvneta_bm_put(struct mvneta_bm *priv); |