diff options
Diffstat (limited to 'drivers/net/ethernet/qualcomm/emac/emac-mac.c')
| -rw-r--r-- | drivers/net/ethernet/qualcomm/emac/emac-mac.c | 55 |
1 files changed, 24 insertions, 31 deletions
diff --git a/drivers/net/ethernet/qualcomm/emac/emac-mac.c b/drivers/net/ethernet/qualcomm/emac/emac-mac.c index 8d790313ee3d..d5c688a8d7be 100644 --- a/drivers/net/ethernet/qualcomm/emac/emac-mac.c +++ b/drivers/net/ethernet/qualcomm/emac/emac-mac.c @@ -1,13 +1,5 @@ +// SPDX-License-Identifier: GPL-2.0-only /* Copyright (c) 2013-2016, The Linux Foundation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 and - * only version 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* Qualcomm Technologies, Inc. EMAC Ethernet Controller MAC layer support @@ -428,7 +420,7 @@ static void emac_mac_dma_config(struct emac_adapter *adpt) } /* set MAC address */ -static void emac_set_mac_address(struct emac_adapter *adpt, u8 *addr) +static void emac_set_mac_address(struct emac_adapter *adpt, const u8 *addr) { u32 sta; @@ -1204,7 +1196,7 @@ void emac_mac_tx_process(struct emac_adapter *adpt, struct emac_tx_queue *tx_q) if (tpbuf->skb) { pkts_compl++; bytes_compl += tpbuf->skb->len; - dev_kfree_skb_irq(tpbuf->skb); + dev_consume_skb_irq(tpbuf->skb); tpbuf->skb = NULL; } @@ -1268,11 +1260,14 @@ static int emac_tso_csum(struct emac_adapter *adpt, if (skb->protocol == htons(ETH_P_IP)) { u32 pkt_len = ((unsigned char *)ip_hdr(skb) - skb->data) + ntohs(ip_hdr(skb)->tot_len); - if (skb->len > pkt_len) - pskb_trim(skb, pkt_len); + if (skb->len > pkt_len) { + ret = pskb_trim(skb, pkt_len); + if (unlikely(ret)) + return ret; + } } - hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb); + hdr_len = skb_tcp_all_headers(skb); if (unlikely(skb->len == hdr_len)) { /* we only need to do csum */ netif_warn(adpt, tx_err, adpt->netdev, @@ -1296,11 +1291,8 @@ static int emac_tso_csum(struct emac_adapter *adpt, memset(tpd, 0, sizeof(*tpd)); memset(&extra_tpd, 0, sizeof(extra_tpd)); - ipv6_hdr(skb)->payload_len = 0; - tcp_hdr(skb)->check = - ~csum_ipv6_magic(&ipv6_hdr(skb)->saddr, - &ipv6_hdr(skb)->daddr, - 0, IPPROTO_TCP, 0); + tcp_v6_gso_csum_prep(skb); + TPD_PKT_LEN_SET(&extra_tpd, skb->len); TPD_LSO_SET(&extra_tpd, 1); TPD_LSOV_SET(&extra_tpd, 1); @@ -1350,7 +1342,7 @@ static void emac_tx_fill_tpd(struct emac_adapter *adpt, /* if Large Segment Offload is (in TCP Segmentation Offload struct) */ if (TPD_LSO(tpd)) { - mapped_len = skb_transport_offset(skb) + tcp_hdrlen(skb); + mapped_len = skb_tcp_all_headers(skb); tpbuf = GET_TPD_BUFFER(tx_q, tx_q->tpd.produce_idx); tpbuf->length = mapped_len; @@ -1393,15 +1385,13 @@ static void emac_tx_fill_tpd(struct emac_adapter *adpt, } for (i = 0; i < nr_frags; i++) { - struct skb_frag_struct *frag; - - frag = &skb_shinfo(skb)->frags[i]; + skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; tpbuf = GET_TPD_BUFFER(tx_q, tx_q->tpd.produce_idx); - tpbuf->length = frag->size; - tpbuf->dma_addr = dma_map_page(adpt->netdev->dev.parent, - frag->page.p, frag->page_offset, - tpbuf->length, DMA_TO_DEVICE); + tpbuf->length = skb_frag_size(frag); + tpbuf->dma_addr = skb_frag_dma_map(adpt->netdev->dev.parent, + frag, 0, tpbuf->length, + DMA_TO_DEVICE); ret = dma_mapping_error(adpt->netdev->dev.parent, tpbuf->dma_addr); if (ret) @@ -1444,11 +1434,13 @@ error: } /* Transmit the packet using specified transmit queue */ -int emac_mac_tx_buf_send(struct emac_adapter *adpt, struct emac_tx_queue *tx_q, - struct sk_buff *skb) +netdev_tx_t emac_mac_tx_buf_send(struct emac_adapter *adpt, + struct emac_tx_queue *tx_q, + struct sk_buff *skb) { struct emac_tpd tpd; u32 prod_idx; + int len; memset(&tpd, 0, sizeof(tpd)); @@ -1468,14 +1460,15 @@ int emac_mac_tx_buf_send(struct emac_adapter *adpt, struct emac_tx_queue *tx_q, if (skb_network_offset(skb) != ETH_HLEN) TPD_TYP_SET(&tpd, 1); + len = skb->len; emac_tx_fill_tpd(adpt, tx_q, skb, &tpd); - netdev_sent_queue(adpt->netdev, skb->len); + netdev_sent_queue(adpt->netdev, len); /* Make sure the are enough free descriptors to hold one * maximum-sized SKB. We need one desc for each fragment, * one for the checksum (emac_tso_csum), one for TSO, and - * and one for the SKB header. + * one for the SKB header. */ if (emac_tpd_num_free_descs(tx_q) < (MAX_SKB_FRAGS + 3)) netif_stop_queue(adpt->netdev); |