From ba1aa084d6fb725a4c026adf69845ca60bab3b36 Mon Sep 17 00:00:00 2001 From: Ursula Braun Date: Wed, 24 May 2006 09:51:13 +0200 Subject: [PATCH] [PATCH] s390: qeth driver fixes From: Frank Blaschka From: Frank Pavlic - fix fake_ll during initial device bringup. fake_ll was not active after first start of the device. Problem only occured when qeth was built without IPV6 support. - avoid skb usage after invocation of qeth_flush_buffers, because skb might already be freed. - remove yet another useless netif_wake_queue in qeth_softsetup_ipv6 since this function is only called when device is going online. In this case card->state will never be in state UP. So let the net_device queue down . Signed-off-by: Frank Pavlic Signed-off-by: Jeff Garzik --- drivers/s390/net/qeth_main.c | 23 +++++++++++++---------- 1 file changed, 13 insertions(+), 10 deletions(-) diff --git a/drivers/s390/net/qeth_main.c b/drivers/s390/net/qeth_main.c index 0f6648fdec..9dbb5be2b6 100644 --- a/drivers/s390/net/qeth_main.c +++ b/drivers/s390/net/qeth_main.c @@ -3798,11 +3798,11 @@ qeth_open(struct net_device *dev) QETH_DBF_TEXT(trace,4,"nomacadr"); return -EPERM; } - card->dev->flags |= IFF_UP; - netif_start_queue(dev); card->data.state = CH_STATE_UP; card->state = CARD_STATE_UP; - + card->dev->flags |= IFF_UP; + netif_start_queue(dev); + if (!card->lan_online && netif_carrier_ok(dev)) netif_carrier_off(dev); return 0; @@ -3958,7 +3958,7 @@ qeth_prepare_skb(struct qeth_card *card, struct sk_buff **skb, #endif *hdr = (struct qeth_hdr *) qeth_push_skb(card, skb, sizeof(struct qeth_hdr)); - if (hdr == NULL) + if (*hdr == NULL) return -EINVAL; return 0; } @@ -4416,6 +4416,8 @@ qeth_send_packet(struct qeth_card *card, struct sk_buff *skb) enum qeth_large_send_types large_send = QETH_LARGE_SEND_NO; struct qeth_eddp_context *ctx = NULL; int tx_bytes = skb->len; + unsigned short nr_frags = skb_shinfo(skb)->nr_frags; + unsigned short tso_size = skb_shinfo(skb)->tso_size; int rc; QETH_DBF_TEXT(trace, 6, "sendpkt"); @@ -4498,16 +4500,16 @@ qeth_send_packet(struct qeth_card *card, struct sk_buff *skb) card->stats.tx_packets++; card->stats.tx_bytes += tx_bytes; #ifdef CONFIG_QETH_PERF_STATS - if (skb_shinfo(skb)->tso_size && + if (tso_size && !(large_send == QETH_LARGE_SEND_NO)) { - card->perf_stats.large_send_bytes += skb->len; + card->perf_stats.large_send_bytes += tx_bytes; card->perf_stats.large_send_cnt++; } - if (skb_shinfo(skb)->nr_frags > 0){ + if (nr_frags > 0){ card->perf_stats.sg_skbs_sent++; /* nr_frags + skb->data */ card->perf_stats.sg_frags_sent += - skb_shinfo(skb)->nr_frags + 1; + nr_frags + 1; } #endif /* CONFIG_QETH_PERF_STATS */ } @@ -6370,6 +6372,9 @@ qeth_netdev_init(struct net_device *dev) if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD)) card->dev->dev_id = card->info.unique_id & 0xffff; #endif + if (card->options.fake_ll && + (qeth_get_netdev_flags(card) & IFF_NOARP)) + dev->hard_header = qeth_fake_header; dev->hard_header_parse = NULL; dev->set_mac_address = qeth_layer2_set_mac_address; dev->flags |= qeth_get_netdev_flags(card); @@ -7031,14 +7036,12 @@ qeth_softsetup_ipv6(struct qeth_card *card) QETH_DBF_TEXT(trace,3,"softipv6"); - netif_tx_disable(card->dev); rc = qeth_send_startlan(card, QETH_PROT_IPV6); if (rc) { PRINT_ERR("IPv6 startlan failed on %s\n", QETH_CARD_IFNAME(card)); return rc; } - netif_wake_queue(card->dev); rc = qeth_query_ipassists(card,QETH_PROT_IPV6); if (rc) { PRINT_ERR("IPv6 query ipassist failed on %s\n", -- 2.39.5