diff options
author | Dave Airlie <airlied@redhat.com> | 2009-03-28 20:22:18 -0400 |
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committer | Dave Airlie <airlied@redhat.com> | 2009-03-28 20:22:18 -0400 |
commit | 90f959bcb386da2c71613dcefc6a285e054a539e (patch) | |
tree | ee3e9dd4111d4aad12e579cb0c2c159114dff263 /drivers/s390/net/qeth_l3_main.c | |
parent | 41f13fe81dd1b08723ab9f3fc3c7f29cfa81f1a5 (diff) | |
parent | 07d43ba98621f08e252a48c96b258b4d572b0257 (diff) |
drm: merge Linux master into HEAD
Conflicts:
drivers/gpu/drm/drm_info.c
drivers/gpu/drm/drm_proc.c
drivers/gpu/drm/i915/i915_gem_debugfs.c
Diffstat (limited to 'drivers/s390/net/qeth_l3_main.c')
-rw-r--r-- | drivers/s390/net/qeth_l3_main.c | 129 |
1 files changed, 85 insertions, 44 deletions
diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c index 3d04920b9bb..0ba3817cb6a 100644 --- a/drivers/s390/net/qeth_l3_main.c +++ b/drivers/s390/net/qeth_l3_main.c @@ -19,15 +19,15 @@ #include <linux/etherdevice.h> #include <linux/mii.h> #include <linux/ip.h> -#include <linux/reboot.h> +#include <linux/ipv6.h> #include <linux/inetdevice.h> #include <linux/igmp.h> #include <net/ip.h> #include <net/arp.h> +#include <net/ip6_checksum.h> #include "qeth_l3.h" -#include "qeth_core_offl.h" static int qeth_l3_set_offline(struct ccwgroup_device *); static int qeth_l3_recover(void *); @@ -1038,7 +1038,7 @@ static int qeth_l3_setadapter_parms(struct qeth_card *card) rc = qeth_query_setadapterparms(card); if (rc) { QETH_DBF_MESSAGE(2, "%s couldn't set adapter parameters: " - "0x%x\n", card->gdev->dev.bus_id, rc); + "0x%x\n", dev_name(&card->gdev->dev), rc); return rc; } if (qeth_adp_supported(card, IPA_SETADP_ALTER_MAC_ADDRESS)) { @@ -1838,6 +1838,10 @@ static void qeth_l3_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) unsigned long flags; QETH_DBF_TEXT_(TRACE, 4, "kid:%d", vid); + if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { + QETH_DBF_TEXT(TRACE, 3, "kidREC"); + return; + } spin_lock_irqsave(&card->vlanlock, flags); /* unregister IP addresses of vlan device */ qeth_l3_free_vlan_addresses(card, vid); @@ -2101,6 +2105,9 @@ static void qeth_l3_set_multicast_list(struct net_device *dev) struct qeth_card *card = dev->ml_priv; QETH_DBF_TEXT(TRACE, 3, "setmulti"); + if (qeth_threads_running(card, QETH_RECOVER_THREAD) && + (card->state != CARD_STATE_UP)) + return; qeth_l3_delete_mc_addresses(card); qeth_l3_add_multicast_ipv4(card); #ifdef CONFIG_QETH_IPV6 @@ -2577,12 +2584,63 @@ static void qeth_l3_fill_header(struct qeth_card *card, struct qeth_hdr *hdr, } } +static void qeth_tso_fill_header(struct qeth_card *card, + struct qeth_hdr *qhdr, struct sk_buff *skb) +{ + struct qeth_hdr_tso *hdr = (struct qeth_hdr_tso *)qhdr; + struct tcphdr *tcph = tcp_hdr(skb); + struct iphdr *iph = ip_hdr(skb); + struct ipv6hdr *ip6h = ipv6_hdr(skb); + + /*fix header to TSO values ...*/ + hdr->hdr.hdr.l3.id = QETH_HEADER_TYPE_TSO; + /*set values which are fix for the first approach ...*/ + hdr->ext.hdr_tot_len = (__u16) sizeof(struct qeth_hdr_ext_tso); + hdr->ext.imb_hdr_no = 1; + hdr->ext.hdr_type = 1; + hdr->ext.hdr_version = 1; + hdr->ext.hdr_len = 28; + /*insert non-fix values */ + hdr->ext.mss = skb_shinfo(skb)->gso_size; + hdr->ext.dg_hdr_len = (__u16)(iph->ihl*4 + tcph->doff*4); + hdr->ext.payload_len = (__u16)(skb->len - hdr->ext.dg_hdr_len - + sizeof(struct qeth_hdr_tso)); + tcph->check = 0; + if (skb->protocol == ETH_P_IPV6) { + ip6h->payload_len = 0; + tcph->check = ~csum_ipv6_magic(&ip6h->saddr, &ip6h->daddr, + 0, IPPROTO_TCP, 0); + } else { + /*OSA want us to set these values ...*/ + tcph->check = ~csum_tcpudp_magic(iph->saddr, iph->daddr, + 0, IPPROTO_TCP, 0); + iph->tot_len = 0; + iph->check = 0; + } +} + +static void qeth_tx_csum(struct sk_buff *skb) +{ + __wsum csum; + int offset; + + skb_set_transport_header(skb, skb->csum_start - skb_headroom(skb)); + offset = skb->csum_start - skb_headroom(skb); + BUG_ON(offset >= skb_headlen(skb)); + csum = skb_checksum(skb, offset, skb->len - offset, 0); + + offset += skb->csum_offset; + BUG_ON(offset + sizeof(__sum16) > skb_headlen(skb)); + *(__sum16 *)(skb->data + offset) = csum_fold(csum); +} + static int qeth_l3_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) { int rc; u16 *tag; struct qeth_hdr *hdr = NULL; int elements_needed = 0; + int elems; struct qeth_card *card = dev->ml_priv; struct sk_buff *new_skb = NULL; int ipv = qeth_get_ip_version(skb); @@ -2591,8 +2649,8 @@ static int qeth_l3_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) [qeth_get_priority_queue(card, skb, ipv, cast_type)]; int tx_bytes = skb->len; enum qeth_large_send_types large_send = QETH_LARGE_SEND_NO; - struct qeth_eddp_context *ctx = NULL; int data_offset = -1; + int nr_frags; if ((card->info.type == QETH_CARD_TYPE_IQD) && (skb->protocol != htons(ETH_P_IPV6)) && @@ -2615,6 +2673,12 @@ static int qeth_l3_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) if (skb_is_gso(skb)) large_send = card->options.large_send; + else + if (skb->ip_summed == CHECKSUM_PARTIAL) { + qeth_tx_csum(skb); + if (card->options.performance_stats) + card->perf_stats.tx_csum++; + } if ((card->info.type == QETH_CARD_TYPE_IQD) && (!large_send) && (skb_shinfo(skb)->nr_frags == 0)) { @@ -2661,12 +2725,13 @@ static int qeth_l3_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) netif_stop_queue(dev); /* fix hardware limitation: as long as we do not have sbal - * chaining we can not send long frag lists so we temporary - * switch to EDDP + * chaining we can not send long frag lists */ if ((large_send == QETH_LARGE_SEND_TSO) && - ((skb_shinfo(new_skb)->nr_frags + 2) > 16)) - large_send = QETH_LARGE_SEND_EDDP; + ((skb_shinfo(new_skb)->nr_frags + 2) > 16)) { + if (skb_linearize(new_skb)) + goto tx_drop; + } if ((large_send == QETH_LARGE_SEND_TSO) && (cast_type == RTN_UNSPEC)) { @@ -2689,37 +2754,22 @@ static int qeth_l3_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) } } - if (large_send == QETH_LARGE_SEND_EDDP) { - /* new_skb is not owned by a socket so we use skb to get - * the protocol - */ - ctx = qeth_eddp_create_context(card, new_skb, hdr, - skb->sk->sk_protocol); - if (ctx == NULL) { - QETH_DBF_MESSAGE(2, "could not create eddp context\n"); - goto tx_drop; - } - } else { - int elems = qeth_get_elements_no(card, (void *)hdr, new_skb, + elems = qeth_get_elements_no(card, (void *)hdr, new_skb, elements_needed); - if (!elems) { - if (data_offset >= 0) - kmem_cache_free(qeth_core_header_cache, hdr); - goto tx_drop; - } - elements_needed += elems; + if (!elems) { + if (data_offset >= 0) + kmem_cache_free(qeth_core_header_cache, hdr); + goto tx_drop; } - - if ((large_send == QETH_LARGE_SEND_NO) && - (new_skb->ip_summed == CHECKSUM_PARTIAL)) - qeth_tx_csum(new_skb); + elements_needed += elems; + nr_frags = skb_shinfo(new_skb)->nr_frags; if (card->info.type != QETH_CARD_TYPE_IQD) rc = qeth_do_send_packet(card, queue, new_skb, hdr, - elements_needed, ctx); + elements_needed); else rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr, - elements_needed, ctx, data_offset, 0); + elements_needed, data_offset, 0); if (!rc) { card->stats.tx_packets++; @@ -2731,22 +2781,13 @@ static int qeth_l3_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) card->perf_stats.large_send_bytes += tx_bytes; card->perf_stats.large_send_cnt++; } - if (skb_shinfo(new_skb)->nr_frags > 0) { + if (nr_frags) { card->perf_stats.sg_skbs_sent++; /* nr_frags + skb->data */ - card->perf_stats.sg_frags_sent += - skb_shinfo(new_skb)->nr_frags + 1; + card->perf_stats.sg_frags_sent += nr_frags + 1; } } - - if (ctx != NULL) { - qeth_eddp_put_context(ctx); - dev_kfree_skb_any(new_skb); - } } else { - if (ctx != NULL) - qeth_eddp_put_context(ctx); - if (data_offset >= 0) kmem_cache_free(qeth_core_header_cache, hdr); @@ -2841,7 +2882,7 @@ static int qeth_l3_ethtool_set_tso(struct net_device *dev, u32 data) if (data) { if (card->options.large_send == QETH_LARGE_SEND_NO) { if (card->info.type == QETH_CARD_TYPE_IQD) - card->options.large_send = QETH_LARGE_SEND_EDDP; + return -EPERM; else card->options.large_send = QETH_LARGE_SEND_TSO; dev->features |= NETIF_F_TSO; |