diff options
| author | Julian Wiedmann <jwi@linux.vnet.ibm.com> | 2018-04-26 10:42:17 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-04-27 20:38:48 +0300 |
| commit | 6195b936610018d11bbb67bd97158d50bdaa2767 (patch) | |
| tree | 965e5e22194e5add2cd4c8635a5abaf76d2e14a2 /drivers/s390/net/qeth_l3_main.c | |
| parent | 1b81143281117ef238691860ec6c45c2cddb2383 (diff) | |
| download | linux-6195b936610018d11bbb67bd97158d50bdaa2767.tar.xz | |
s390/qeth: extract csum offload helpers
This consolidates the checksum offload code that was duplicated
over the two qeth subdrivers.
Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/s390/net/qeth_l3_main.c')
| -rw-r--r-- | drivers/s390/net/qeth_l3_main.c | 36 |
1 files changed, 6 insertions, 30 deletions
diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c index 0e8ed8787fd3..bc359e322ae7 100644 --- a/drivers/s390/net/qeth_l3_main.c +++ b/drivers/s390/net/qeth_l3_main.c @@ -1367,17 +1367,7 @@ static void qeth_l3_rebuild_skb(struct qeth_card *card, struct sk_buff *skb, __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), tag); } - if (card->dev->features & NETIF_F_RXCSUM) { - if ((hdr->hdr.l3.ext_flags & - (QETH_HDR_EXT_CSUM_HDR_REQ | - QETH_HDR_EXT_CSUM_TRANSP_REQ)) == - (QETH_HDR_EXT_CSUM_HDR_REQ | - QETH_HDR_EXT_CSUM_TRANSP_REQ)) - skb->ip_summed = CHECKSUM_UNNECESSARY; - else - skb->ip_summed = CHECKSUM_NONE; - } else - skb->ip_summed = CHECKSUM_NONE; + qeth_rx_csum(card, skb, hdr->hdr.l3.ext_flags); } static int qeth_l3_process_inbound_buffer(struct qeth_card *card, @@ -2123,23 +2113,6 @@ static void qeth_l3_fill_header(struct qeth_card *card, struct qeth_hdr *hdr, rcu_read_unlock(); } -static void qeth_l3_hdr_csum(struct qeth_card *card, struct qeth_hdr *hdr, - struct sk_buff *skb) -{ - struct iphdr *iph = ip_hdr(skb); - - /* tcph->check contains already the pseudo hdr checksum - * so just set the header flags - */ - if (iph->protocol == IPPROTO_UDP) - hdr->hdr.l3.ext_flags |= QETH_HDR_EXT_UDP; - hdr->hdr.l3.ext_flags |= QETH_HDR_EXT_CSUM_TRANSP_REQ | - QETH_HDR_EXT_CSUM_HDR_REQ; - iph->check = 0; - if (card->options.performance_stats) - card->perf_stats.tx_csum++; -} - static void qeth_tso_fill_header(struct qeth_card *card, struct qeth_hdr *qhdr, struct sk_buff *skb) { @@ -2331,8 +2304,11 @@ static netdev_tx_t qeth_l3_hard_start_xmit(struct sk_buff *skb, } } - if (skb->ip_summed == CHECKSUM_PARTIAL) - qeth_l3_hdr_csum(card, hdr, new_skb); + if (new_skb->ip_summed == CHECKSUM_PARTIAL) { + qeth_tx_csum(new_skb, &hdr->hdr.l3.ext_flags); + if (card->options.performance_stats) + card->perf_stats.tx_csum++; + } } elements = use_tso ? |