diff options
Diffstat (limited to 'drivers/s390/net/qeth_core_main.c')
-rw-r--r-- | drivers/s390/net/qeth_core_main.c | 49 |
1 files changed, 44 insertions, 5 deletions
diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c index ab022b6a41ea..3274f13aad57 100644 --- a/drivers/s390/net/qeth_core_main.c +++ b/drivers/s390/net/qeth_core_main.c @@ -4088,15 +4088,31 @@ out: } EXPORT_SYMBOL_GPL(qeth_do_send_packet); +void qeth_fill_tso_ext(struct qeth_hdr_tso *hdr, unsigned int payload_len, + struct sk_buff *skb, unsigned int proto_len) +{ + struct qeth_hdr_ext_tso *ext = &hdr->ext; + + ext->hdr_tot_len = sizeof(*ext); + ext->imb_hdr_no = 1; + ext->hdr_type = 1; + ext->hdr_version = 1; + ext->hdr_len = 28; + ext->payload_len = payload_len; + ext->mss = skb_shinfo(skb)->gso_size; + ext->dg_hdr_len = proto_len; +} +EXPORT_SYMBOL_GPL(qeth_fill_tso_ext); + int qeth_xmit(struct qeth_card *card, struct sk_buff *skb, struct qeth_qdio_out_q *queue, int ipv, int cast_type, void (*fill_header)(struct qeth_card *card, struct qeth_hdr *hdr, struct sk_buff *skb, int ipv, int cast_type, unsigned int data_len)) { - const unsigned int proto_len = IS_IQD(card) ? ETH_HLEN : 0; - const unsigned int hw_hdr_len = sizeof(struct qeth_hdr); + unsigned int proto_len, hw_hdr_len; unsigned int frame_len = skb->len; + bool is_tso = skb_is_gso(skb); unsigned int data_offset = 0; struct qeth_hdr *hdr = NULL; unsigned int hd_len = 0; @@ -4104,6 +4120,14 @@ int qeth_xmit(struct qeth_card *card, struct sk_buff *skb, int push_len, rc; bool is_sg; + if (is_tso) { + hw_hdr_len = sizeof(struct qeth_hdr_tso); + proto_len = skb_transport_offset(skb) + tcp_hdrlen(skb); + } else { + hw_hdr_len = sizeof(struct qeth_hdr); + proto_len = IS_IQD(card) ? ETH_HLEN : 0; + } + rc = skb_cow_head(skb, hw_hdr_len); if (rc) return rc; @@ -4112,13 +4136,16 @@ int qeth_xmit(struct qeth_card *card, struct sk_buff *skb, &elements); if (push_len < 0) return push_len; - if (!push_len) { + if (is_tso || !push_len) { /* HW header needs its own buffer element. */ hd_len = hw_hdr_len + proto_len; - data_offset = proto_len; + data_offset = push_len + proto_len; } memset(hdr, 0, hw_hdr_len); fill_header(card, hdr, skb, ipv, cast_type, frame_len); + if (is_tso) + qeth_fill_tso_ext((struct qeth_hdr_tso *) hdr, + frame_len - proto_len, skb, proto_len); is_sg = skb_is_nonlinear(skb); if (IS_IQD(card)) { @@ -4136,6 +4163,10 @@ int qeth_xmit(struct qeth_card *card, struct sk_buff *skb, card->perf_stats.buf_elements_sent += elements; if (is_sg) card->perf_stats.sg_skbs_sent++; + if (is_tso) { + card->perf_stats.large_send_bytes += frame_len; + card->perf_stats.large_send_cnt++; + } } } else { if (!push_len) @@ -6516,7 +6547,7 @@ static int qeth_set_ipa_rx_csum(struct qeth_card *card, bool on) } #define QETH_HW_FEATURES (NETIF_F_RXCSUM | NETIF_F_IP_CSUM | NETIF_F_TSO | \ - NETIF_F_IPV6_CSUM) + NETIF_F_IPV6_CSUM | NETIF_F_TSO6) /** * qeth_enable_hw_features() - (Re-)Enable HW functions for device features * @dev: a net_device @@ -6572,6 +6603,12 @@ int qeth_set_features(struct net_device *dev, netdev_features_t features) if (rc) changed ^= NETIF_F_TSO; } + if (changed & NETIF_F_TSO6) { + rc = qeth_set_ipa_tso(card, features & NETIF_F_TSO6, + QETH_PROT_IPV6); + if (rc) + changed ^= NETIF_F_TSO6; + } /* everything changed successfully? */ if ((dev->features ^ features) == changed) @@ -6597,6 +6634,8 @@ netdev_features_t qeth_fix_features(struct net_device *dev, features &= ~NETIF_F_RXCSUM; if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) features &= ~NETIF_F_TSO; + if (!qeth_is_supported6(card, IPA_OUTBOUND_TSO)) + features &= ~NETIF_F_TSO6; /* if the card isn't up, remove features that require hw changes */ if (card->state == CARD_STATE_DOWN || card->state == CARD_STATE_RECOVER) |