1 files changed, 0 insertions, 699 deletions

diff --git a/drivers/s390/net/qeth_core_offl.c b/drivers/s390/net/qeth_core_offl.c
index 4080126ca48c..e69de29bb2d1 100644
--- a/drivers/s390/net/qeth_core_offl.c
+++ b/drivers/s390/net/qeth_core_offl.c
@@ -1,699 +0,0 @@
-/*
- *  drivers/s390/net/qeth_core_offl.c
- *
- *    Copyright IBM Corp. 2007
- *    Author(s): Thomas Spatzier <tspat@de.ibm.com>,
- *		 Frank Blaschka <frank.blaschka@de.ibm.com>
- */
-
-#include <linux/errno.h>
-#include <linux/ip.h>
-#include <linux/inetdevice.h>
-#include <linux/netdevice.h>
-#include <linux/kernel.h>
-#include <linux/tcp.h>
-#include <net/tcp.h>
-#include <linux/skbuff.h>
-
-#include <net/ip.h>
-#include <net/ip6_checksum.h>
-
-#include "qeth_core.h"
-#include "qeth_core_mpc.h"
-#include "qeth_core_offl.h"
-
-int qeth_eddp_check_buffers_for_context(struct qeth_qdio_out_q *queue,
-		struct qeth_eddp_context *ctx)
-{
-	int index = queue->next_buf_to_fill;
-	int elements_needed = ctx->num_elements;
-	int elements_in_buffer;
-	int skbs_in_buffer;
-	int buffers_needed = 0;
-
-	QETH_DBF_TEXT(TRACE, 5, "eddpcbfc");
-	while (elements_needed > 0) {
-		buffers_needed++;
-		if (atomic_read(&queue->bufs[index].state) !=
-				QETH_QDIO_BUF_EMPTY)
-			return -EBUSY;
-
-		elements_in_buffer = QETH_MAX_BUFFER_ELEMENTS(queue->card) -
-				     queue->bufs[index].next_element_to_fill;
-		skbs_in_buffer = elements_in_buffer / ctx->elements_per_skb;
-		elements_needed -= skbs_in_buffer * ctx->elements_per_skb;
-		index = (index + 1) % QDIO_MAX_BUFFERS_PER_Q;
-	}
-	return buffers_needed;
-}
-
-static void qeth_eddp_free_context(struct qeth_eddp_context *ctx)
-{
-	int i;
-
-	QETH_DBF_TEXT(TRACE, 5, "eddpfctx");
-	for (i = 0; i < ctx->num_pages; ++i)
-		free_page((unsigned long)ctx->pages[i]);
-	kfree(ctx->pages);
-	kfree(ctx->elements);
-	kfree(ctx);
-}
-
-
-static void qeth_eddp_get_context(struct qeth_eddp_context *ctx)
-{
-	atomic_inc(&ctx->refcnt);
-}
-
-void qeth_eddp_put_context(struct qeth_eddp_context *ctx)
-{
-	if (atomic_dec_return(&ctx->refcnt) == 0)
-		qeth_eddp_free_context(ctx);
-}
-EXPORT_SYMBOL_GPL(qeth_eddp_put_context);
-
-void qeth_eddp_buf_release_contexts(struct qeth_qdio_out_buffer *buf)
-{
-	struct qeth_eddp_context_reference *ref;
-
-	QETH_DBF_TEXT(TRACE, 6, "eddprctx");
-	while (!list_empty(&buf->ctx_list)) {
-		ref = list_entry(buf->ctx_list.next,
-				 struct qeth_eddp_context_reference, list);
-		qeth_eddp_put_context(ref->ctx);
-		list_del(&ref->list);
-		kfree(ref);
-	}
-}
-
-static int qeth_eddp_buf_ref_context(struct qeth_qdio_out_buffer *buf,
-		struct qeth_eddp_context *ctx)
-{
-	struct qeth_eddp_context_reference *ref;
-
-	QETH_DBF_TEXT(TRACE, 6, "eddprfcx");
-	ref = kmalloc(sizeof(struct qeth_eddp_context_reference), GFP_ATOMIC);
-	if (ref == NULL)
-		return -ENOMEM;
-	qeth_eddp_get_context(ctx);
-	ref->ctx = ctx;
-	list_add_tail(&ref->list, &buf->ctx_list);
-	return 0;
-}
-
-int qeth_eddp_fill_buffer(struct qeth_qdio_out_q *queue,
-		struct qeth_eddp_context *ctx, int index)
-{
-	struct qeth_qdio_out_buffer *buf = NULL;
-	struct qdio_buffer *buffer;
-	int elements = ctx->num_elements;
-	int element = 0;
-	int flush_cnt = 0;
-	int must_refcnt = 1;
-	int i;
-
-	QETH_DBF_TEXT(TRACE, 5, "eddpfibu");
-	while (elements > 0) {
-		buf = &queue->bufs[index];
-		if (atomic_read(&buf->state) != QETH_QDIO_BUF_EMPTY) {
-			/* normally this should not happen since we checked for
-			 * available elements in qeth_check_elements_for_context
-			 */
-			if (element == 0)
-				return -EBUSY;
-			else {
-				QETH_DBF_MESSAGE(2, "could only partially fill"
-					"eddp buffer!\n");
-				goto out;
-			}
-		}
-		/* check if the whole next skb fits into current buffer */
-		if ((QETH_MAX_BUFFER_ELEMENTS(queue->card) -
-					buf->next_element_to_fill)
-				< ctx->elements_per_skb){
-			/* no -> go to next buffer */
-			atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
-			index = (index + 1) % QDIO_MAX_BUFFERS_PER_Q;
-			flush_cnt++;
-			/* new buffer, so we have to add ctx to buffer'ctx_list
-			 * and increment ctx's refcnt */
-			must_refcnt = 1;
-			continue;
-		}
-		if (must_refcnt) {
-			must_refcnt = 0;
-			if (qeth_eddp_buf_ref_context(buf, ctx)) {
-				goto out_check;
-			}
-		}
-		buffer = buf->buffer;
-		/* fill one skb into buffer */
-		for (i = 0; i < ctx->elements_per_skb; ++i) {
-			if (ctx->elements[element].length != 0) {
-				buffer->element[buf->next_element_to_fill].
-				addr = ctx->elements[element].addr;
-				buffer->element[buf->next_element_to_fill].
-				length = ctx->elements[element].length;
-				buffer->element[buf->next_element_to_fill].
-				flags = ctx->elements[element].flags;
-				buf->next_element_to_fill++;
-			}
-			element++;
-			elements--;
-		}
-	}
-out_check:
-	if (!queue->do_pack) {
-		QETH_DBF_TEXT(TRACE, 6, "fillbfnp");
-		/* set state to PRIMED -> will be flushed */
-		if (buf->next_element_to_fill > 0) {
-			atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
-			flush_cnt++;
-		}
-	} else {
-		if (queue->card->options.performance_stats)
-			queue->card->perf_stats.skbs_sent_pack++;
-		QETH_DBF_TEXT(TRACE, 6, "fillbfpa");
-		if (buf->next_element_to_fill >=
-				QETH_MAX_BUFFER_ELEMENTS(queue->card)) {
-			/*
-			 * packed buffer if full -> set state PRIMED
-			 * -> will be flushed
-			 */
-			atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
-			flush_cnt++;
-		}
-	}
-out:
-	return flush_cnt;
-}
-
-static void qeth_eddp_create_segment_hdrs(struct qeth_eddp_context *ctx,
-		struct qeth_eddp_data *eddp, int data_len)
-{
-	u8 *page;
-	int page_remainder;
-	int page_offset;
-	int pkt_len;
-	struct qeth_eddp_element *element;
-
-	QETH_DBF_TEXT(TRACE, 5, "eddpcrsh");
-	page = ctx->pages[ctx->offset >> PAGE_SHIFT];
-	page_offset = ctx->offset % PAGE_SIZE;
-	element = &ctx->elements[ctx->num_elements];
-	pkt_len = eddp->nhl + eddp->thl + data_len;
-	/* FIXME: layer2 and VLAN !!! */
-	if (eddp->qh.hdr.l2.id == QETH_HEADER_TYPE_LAYER2)
-		pkt_len += ETH_HLEN;
-	if (eddp->mac.h_proto == __constant_htons(ETH_P_8021Q))
-		pkt_len += VLAN_HLEN;
-	/* does complete packet fit in current page ? */
-	page_remainder = PAGE_SIZE - page_offset;
-	if (page_remainder < (sizeof(struct qeth_hdr) + pkt_len)) {
-		/* no -> go to start of next page */
-		ctx->offset += page_remainder;
-		page = ctx->pages[ctx->offset >> PAGE_SHIFT];
-		page_offset = 0;
-	}
-	memcpy(page + page_offset, &eddp->qh, sizeof(struct qeth_hdr));
-	element->addr = page + page_offset;
-	element->length = sizeof(struct qeth_hdr);
-	ctx->offset += sizeof(struct qeth_hdr);
-	page_offset += sizeof(struct qeth_hdr);
-	/* add mac header (?) */
-	if (eddp->qh.hdr.l2.id == QETH_HEADER_TYPE_LAYER2) {
-		memcpy(page + page_offset, &eddp->mac, ETH_HLEN);
-		element->length += ETH_HLEN;
-		ctx->offset += ETH_HLEN;
-		page_offset += ETH_HLEN;
-	}
-	/* add VLAN tag */
-	if (eddp->mac.h_proto == __constant_htons(ETH_P_8021Q)) {
-		memcpy(page + page_offset, &eddp->vlan, VLAN_HLEN);
-		element->length += VLAN_HLEN;
-		ctx->offset += VLAN_HLEN;
-		page_offset += VLAN_HLEN;
-	}
-	/* add network header */
-	memcpy(page + page_offset, (u8 *)&eddp->nh, eddp->nhl);
-	element->length += eddp->nhl;
-	eddp->nh_in_ctx = page + page_offset;
-	ctx->offset += eddp->nhl;
-	page_offset += eddp->nhl;
-	/* add transport header */
-	memcpy(page + page_offset, (u8 *)&eddp->th, eddp->thl);
-	element->length += eddp->thl;
-	eddp->th_in_ctx = page + page_offset;
-	ctx->offset += eddp->thl;
-}
-
-static void qeth_eddp_copy_data_tcp(char *dst, struct qeth_eddp_data *eddp,
-		int len, __wsum *hcsum)
-{
-	struct skb_frag_struct *frag;
-	int left_in_frag;
-	int copy_len;
-	u8 *src;
-
-	QETH_DBF_TEXT(TRACE, 5, "eddpcdtc");
-	if (skb_shinfo(eddp->skb)->nr_frags == 0) {
-		skb_copy_from_linear_data_offset(eddp->skb, eddp->skb_offset,
-						 dst, len);
-		*hcsum = csum_partial(eddp->skb->data + eddp->skb_offset, len,
-				      *hcsum);
-		eddp->skb_offset += len;
-	} else {
-		while (len > 0) {
-			if (eddp->frag < 0) {
-				/* we're in skb->data */
-				left_in_frag = (eddp->skb->len -
-						eddp->skb->data_len)
-						- eddp->skb_offset;
-				src = eddp->skb->data + eddp->skb_offset;
-			} else {
-				frag = &skb_shinfo(eddp->skb)->frags[
-					eddp->frag];
-				left_in_frag = frag->size - eddp->frag_offset;
-				src = (u8 *)((page_to_pfn(frag->page) <<
-					PAGE_SHIFT) + frag->page_offset +
-					eddp->frag_offset);
-			}
-			if (left_in_frag <= 0) {
-				eddp->frag++;
-				eddp->frag_offset = 0;
-				continue;
-			}
-			copy_len = min(left_in_frag, len);
-			memcpy(dst, src, copy_len);
-			*hcsum = csum_partial(src, copy_len, *hcsum);
-			dst += copy_len;
-			eddp->frag_offset += copy_len;
-			eddp->skb_offset += copy_len;
-			len -= copy_len;
-		}
-	}
-}
-
-static void qeth_eddp_create_segment_data_tcp(struct qeth_eddp_context *ctx,
-		struct qeth_eddp_data *eddp, int data_len, __wsum hcsum)
-{
-	u8 *page;
-	int page_remainder;
-	int page_offset;
-	struct qeth_eddp_element *element;
-	int first_lap = 1;
-
-	QETH_DBF_TEXT(TRACE, 5, "eddpcsdt");
-	page = ctx->pages[ctx->offset >> PAGE_SHIFT];
-	page_offset = ctx->offset % PAGE_SIZE;
-	element = &ctx->elements[ctx->num_elements];
-	while (data_len) {
-		page_remainder = PAGE_SIZE - page_offset;
-		if (page_remainder < data_len) {
-			qeth_eddp_copy_data_tcp(page + page_offset, eddp,
-						page_remainder, &hcsum);
-			element->length += page_remainder;
-			if (first_lap)
-				element->flags = SBAL_FLAGS_FIRST_FRAG;
-			else
-				element->flags = SBAL_FLAGS_MIDDLE_FRAG;
-			ctx->num_elements++;
-			element++;
-			data_len -= page_remainder;
-			ctx->offset += page_remainder;
-			page = ctx->pages[ctx->offset >> PAGE_SHIFT];
-			page_offset = 0;
-			element->addr = page + page_offset;
-		} else {
-			qeth_eddp_copy_data_tcp(page + page_offset, eddp,
-						data_len, &hcsum);
-			element->length += data_len;
-			if (!first_lap)
-				element->flags = SBAL_FLAGS_LAST_FRAG;
-			ctx->num_elements++;
-			ctx->offset += data_len;
-			data_len = 0;
-		}
-		first_lap = 0;
-	}
-	((struct tcphdr *)eddp->th_in_ctx)->check = csum_fold(hcsum);
-}
-
-static __wsum qeth_eddp_check_tcp4_hdr(struct qeth_eddp_data *eddp,
-		int data_len)
-{
-	__wsum phcsum; /* pseudo header checksum */
-
-	QETH_DBF_TEXT(TRACE, 5, "eddpckt4");
-	eddp->th.tcp.h.check = 0;
-	/* compute pseudo header checksum */
-	phcsum = csum_tcpudp_nofold(eddp->nh.ip4.h.saddr, eddp->nh.ip4.h.daddr,
-				    eddp->thl + data_len, IPPROTO_TCP, 0);
-	/* compute checksum of tcp header */
-	return csum_partial(&eddp->th, eddp->thl, phcsum);
-}
-
-static __wsum qeth_eddp_check_tcp6_hdr(struct qeth_eddp_data *eddp,
-		int data_len)
-{
-	__be32 proto;
-	__wsum phcsum; /* pseudo header checksum */
-
-	QETH_DBF_TEXT(TRACE, 5, "eddpckt6");
-	eddp->th.tcp.h.check = 0;
-	/* compute pseudo header checksum */
-	phcsum = csum_partial(&eddp->nh.ip6.h.saddr,
-			      sizeof(struct in6_addr), 0);
-	phcsum = csum_partial(&eddp->nh.ip6.h.daddr,
-			      sizeof(struct in6_addr), phcsum);
-	proto = htonl(IPPROTO_TCP);
-	phcsum = csum_partial(&proto, sizeof(u32), phcsum);
-	return phcsum;
-}
-
-static struct qeth_eddp_data *qeth_eddp_create_eddp_data(struct qeth_hdr *qh,
-		u8 *nh, u8 nhl, u8 *th, u8 thl)
-{
-	struct qeth_eddp_data *eddp;
-
-	QETH_DBF_TEXT(TRACE, 5, "eddpcrda");
-	eddp = kzalloc(sizeof(struct qeth_eddp_data), GFP_ATOMIC);
-	if (eddp) {
-		eddp->nhl = nhl;
-		eddp->thl = thl;
-		memcpy(&eddp->qh, qh, sizeof(struct qeth_hdr));
-		memcpy(&eddp->nh, nh, nhl);
-		memcpy(&eddp->th, th, thl);
-		eddp->frag = -1; /* initially we're in skb->data */
-	}
-	return eddp;
-}
-
-static void __qeth_eddp_fill_context_tcp(struct qeth_eddp_context *ctx,
-		struct qeth_eddp_data *eddp)
-{
-	struct tcphdr *tcph;
-	int data_len;
-	__wsum hcsum;
-
-	QETH_DBF_TEXT(TRACE, 5, "eddpftcp");
-	eddp->skb_offset = sizeof(struct qeth_hdr) + eddp->nhl + eddp->thl;
-	if (eddp->qh.hdr.l2.id == QETH_HEADER_TYPE_LAYER2) {
-		eddp->skb_offset += sizeof(struct ethhdr);
-		if (eddp->mac.h_proto == __constant_htons(ETH_P_8021Q))
-			eddp->skb_offset += VLAN_HLEN;
-	}
-	tcph = tcp_hdr(eddp->skb);
-	while (eddp->skb_offset < eddp->skb->len) {
-		data_len = min((int)skb_shinfo(eddp->skb)->gso_size,
-			       (int)(eddp->skb->len - eddp->skb_offset));
-		/* prepare qdio hdr */
-		if (eddp->qh.hdr.l2.id == QETH_HEADER_TYPE_LAYER2) {
-			eddp->qh.hdr.l2.pkt_length = data_len + ETH_HLEN +
-						     eddp->nhl + eddp->thl;
-			if (eddp->mac.h_proto == __constant_htons(ETH_P_8021Q))
-				eddp->qh.hdr.l2.pkt_length += VLAN_HLEN;
-		} else
-			eddp->qh.hdr.l3.length = data_len + eddp->nhl +
-						 eddp->thl;
-		/* prepare ip hdr */
-		if (eddp->skb->protocol == htons(ETH_P_IP)) {
-			eddp->nh.ip4.h.tot_len = htons(data_len + eddp->nhl +
-						 eddp->thl);
-			eddp->nh.ip4.h.check = 0;
-			eddp->nh.ip4.h.check =
-				ip_fast_csum((u8 *)&eddp->nh.ip4.h,
-						eddp->nh.ip4.h.ihl);
-		} else
-			eddp->nh.ip6.h.payload_len = htons(data_len +
-								eddp->thl);
-		/* prepare tcp hdr */
-		if (data_len == (eddp->skb->len - eddp->skb_offset)) {
-			/* last segment -> set FIN and PSH flags */
-			eddp->th.tcp.h.fin = tcph->fin;
-			eddp->th.tcp.h.psh = tcph->psh;
-		}
-		if (eddp->skb->protocol == htons(ETH_P_IP))
-			hcsum = qeth_eddp_check_tcp4_hdr(eddp, data_len);
-		else
-			hcsum = qeth_eddp_check_tcp6_hdr(eddp, data_len);
-		/* fill the next segment into the context */
-		qeth_eddp_create_segment_hdrs(ctx, eddp, data_len);
-		qeth_eddp_create_segment_data_tcp(ctx, eddp, data_len, hcsum);
-		if (eddp->skb_offset >= eddp->skb->len)
-			break;
-		/* prepare headers for next round */
-		if (eddp->skb->protocol == htons(ETH_P_IP))
-			eddp->nh.ip4.h.id = htons(ntohs(eddp->nh.ip4.h.id) + 1);
-		eddp->th.tcp.h.seq = htonl(ntohl(eddp->th.tcp.h.seq) +
-			data_len);
-	}
-}
-
-static int qeth_eddp_fill_context_tcp(struct qeth_eddp_context *ctx,
-		struct sk_buff *skb, struct qeth_hdr *qhdr)
-{
-	struct qeth_eddp_data *eddp = NULL;
-
-	QETH_DBF_TEXT(TRACE, 5, "eddpficx");
-	/* create our segmentation headers and copy original headers */
-	if (skb->protocol == htons(ETH_P_IP))
-		eddp = qeth_eddp_create_eddp_data(qhdr,
-						  skb_network_header(skb),
-						  ip_hdrlen(skb),
-						  skb_transport_header(skb),
-						  tcp_hdrlen(skb));
-	else
-		eddp = qeth_eddp_create_eddp_data(qhdr,
-						  skb_network_header(skb),
-						  sizeof(struct ipv6hdr),
-						  skb_transport_header(skb),
-						  tcp_hdrlen(skb));
-
-	if (eddp == NULL) {
-		QETH_DBF_TEXT(TRACE, 2, "eddpfcnm");
-		return -ENOMEM;
-	}
-	if (qhdr->hdr.l2.id == QETH_HEADER_TYPE_LAYER2) {
-		skb_set_mac_header(skb, sizeof(struct qeth_hdr));
-		memcpy(&eddp->mac, eth_hdr(skb), ETH_HLEN);
-		if (eddp->mac.h_proto == __constant_htons(ETH_P_8021Q)) {
-			eddp->vlan[0] = skb->protocol;
-			eddp->vlan[1] = htons(vlan_tx_tag_get(skb));
-		}
-	}
-	/* the next flags will only be set on the last segment */
-	eddp->th.tcp.h.fin = 0;
-	eddp->th.tcp.h.psh = 0;
-	eddp->skb = skb;
-	/* begin segmentation and fill context */
-	__qeth_eddp_fill_context_tcp(ctx, eddp);
-	kfree(eddp);
-	return 0;
-}
-
-static void qeth_eddp_calc_num_pages(struct qeth_eddp_context *ctx,
-		struct sk_buff *skb, int hdr_len)
-{
-	int skbs_per_page;
-
-	QETH_DBF_TEXT(TRACE, 5, "eddpcanp");
-	/* can we put multiple skbs in one page? */
-	skbs_per_page = PAGE_SIZE / (skb_shinfo(skb)->gso_size + hdr_len);
-	if (skbs_per_page > 1) {
-		ctx->num_pages = (skb_shinfo(skb)->gso_segs + 1) /
-				 skbs_per_page + 1;
-		ctx->elements_per_skb = 1;
-	} else {
-		/* no -> how many elements per skb? */
-		ctx->elements_per_skb = (skb_shinfo(skb)->gso_size + hdr_len +
-				     PAGE_SIZE) >> PAGE_SHIFT;
-		ctx->num_pages = ctx->elements_per_skb *
-				 (skb_shinfo(skb)->gso_segs + 1);
-	}
-	ctx->num_elements = ctx->elements_per_skb *
-			    (skb_shinfo(skb)->gso_segs + 1);
-}
-
-static struct qeth_eddp_context *qeth_eddp_create_context_generic(
-		struct qeth_card *card, struct sk_buff *skb, int hdr_len)
-{
-	struct qeth_eddp_context *ctx = NULL;
-	u8 *addr;
-	int i;
-
-	QETH_DBF_TEXT(TRACE, 5, "creddpcg");
-	/* create the context and allocate pages */
-	ctx = kzalloc(sizeof(struct qeth_eddp_context), GFP_ATOMIC);
-	if (ctx == NULL) {
-		QETH_DBF_TEXT(TRACE, 2, "ceddpcn1");
-		return NULL;
-	}
-	ctx->type = QETH_LARGE_SEND_EDDP;
-	qeth_eddp_calc_num_pages(ctx, skb, hdr_len);
-	if (ctx->elements_per_skb > QETH_MAX_BUFFER_ELEMENTS(card)) {
-		QETH_DBF_TEXT(TRACE, 2, "ceddpcis");
-		kfree(ctx);
-		return NULL;
-	}
-	ctx->pages = kcalloc(ctx->num_pages, sizeof(u8 *), GFP_ATOMIC);
-	if (ctx->pages == NULL) {
-		QETH_DBF_TEXT(TRACE, 2, "ceddpcn2");
-		kfree(ctx);
-		return NULL;
-	}
-	for (i = 0; i < ctx->num_pages; ++i) {
-		addr = (u8 *)get_zeroed_page(GFP_ATOMIC);
-		if (addr == NULL) {
-			QETH_DBF_TEXT(TRACE, 2, "ceddpcn3");
-			ctx->num_pages = i;
-			qeth_eddp_free_context(ctx);
-			return NULL;
-		}
-		ctx->pages[i] = addr;
-	}
-	ctx->elements = kcalloc(ctx->num_elements,
-				sizeof(struct qeth_eddp_element), GFP_ATOMIC);
-	if (ctx->elements == NULL) {
-		QETH_DBF_TEXT(TRACE, 2, "ceddpcn4");
-		qeth_eddp_free_context(ctx);
-		return NULL;
-	}
-	/* reset num_elements; will be incremented again in fill_buffer to
-	 * reflect number of actually used elements */
-	ctx->num_elements = 0;
-	return ctx;
-}
-
-static struct qeth_eddp_context *qeth_eddp_create_context_tcp(
-		struct qeth_card *card, struct sk_buff *skb,
-		struct qeth_hdr *qhdr)
-{
-	struct qeth_eddp_context *ctx = NULL;
-
-	QETH_DBF_TEXT(TRACE, 5, "creddpct");
-	if (skb->protocol == htons(ETH_P_IP))
-		ctx = qeth_eddp_create_context_generic(card, skb,
-						(sizeof(struct qeth_hdr) +
-						ip_hdrlen(skb) +
-						tcp_hdrlen(skb)));
-	else if (skb->protocol == htons(ETH_P_IPV6))
-		ctx = qeth_eddp_create_context_generic(card, skb,
-			sizeof(struct qeth_hdr) + sizeof(struct ipv6hdr) +
-			tcp_hdrlen(skb));
-	else
-		QETH_DBF_TEXT(TRACE, 2, "cetcpinv");
-
-	if (ctx == NULL) {
-		QETH_DBF_TEXT(TRACE, 2, "creddpnl");
-		return NULL;
-	}
-	if (qeth_eddp_fill_context_tcp(ctx, skb, qhdr)) {
-		QETH_DBF_TEXT(TRACE, 2, "ceddptfe");
-		qeth_eddp_free_context(ctx);
-		return NULL;
-	}
-	atomic_set(&ctx->refcnt, 1);
-	return ctx;
-}
-
-struct qeth_eddp_context *qeth_eddp_create_context(struct qeth_card *card,
-		struct sk_buff *skb, struct qeth_hdr *qhdr,
-		unsigned char sk_protocol)
-{
-	QETH_DBF_TEXT(TRACE, 5, "creddpc");
-	switch (sk_protocol) {
-	case IPPROTO_TCP:
-		return qeth_eddp_create_context_tcp(card, skb, qhdr);
-	default:
-		QETH_DBF_TEXT(TRACE, 2, "eddpinvp");
-	}
-	return NULL;
-}
-EXPORT_SYMBOL_GPL(qeth_eddp_create_context);
-
-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);
-
-	QETH_DBF_TEXT(TRACE, 5, "tsofhdr");
-
-	/*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;
-	}
-}
-EXPORT_SYMBOL_GPL(qeth_tso_fill_header);
-
-void qeth_tx_csum(struct sk_buff *skb)
-{
-	int tlen;
-	if (skb->protocol == htons(ETH_P_IP)) {
-		tlen = ntohs(ip_hdr(skb)->tot_len) - (ip_hdr(skb)->ihl << 2);
-		switch (ip_hdr(skb)->protocol) {
-		case IPPROTO_TCP:
-			tcp_hdr(skb)->check = 0;
-			tcp_hdr(skb)->check = csum_tcpudp_magic(
-				ip_hdr(skb)->saddr, ip_hdr(skb)->daddr,
-				tlen, ip_hdr(skb)->protocol,
-				skb_checksum(skb, skb_transport_offset(skb),
-					tlen, 0));
-			break;
-		case IPPROTO_UDP:
-			udp_hdr(skb)->check = 0;
-			udp_hdr(skb)->check = csum_tcpudp_magic(
-				ip_hdr(skb)->saddr, ip_hdr(skb)->daddr,
-				tlen, ip_hdr(skb)->protocol,
-				skb_checksum(skb, skb_transport_offset(skb),
-					tlen, 0));
-			break;
-		}
-	} else if (skb->protocol == htons(ETH_P_IPV6)) {
-		switch (ipv6_hdr(skb)->nexthdr) {
-		case IPPROTO_TCP:
-			tcp_hdr(skb)->check = 0;
-			tcp_hdr(skb)->check = csum_ipv6_magic(
-				&ipv6_hdr(skb)->saddr, &ipv6_hdr(skb)->daddr,
-				ipv6_hdr(skb)->payload_len,
-				ipv6_hdr(skb)->nexthdr,
-				skb_checksum(skb, skb_transport_offset(skb),
-					ipv6_hdr(skb)->payload_len, 0));
-			break;
-		case IPPROTO_UDP:
-			udp_hdr(skb)->check = 0;
-			udp_hdr(skb)->check = csum_ipv6_magic(
-				&ipv6_hdr(skb)->saddr, &ipv6_hdr(skb)->daddr,
-				ipv6_hdr(skb)->payload_len,
-				ipv6_hdr(skb)->nexthdr,
-				skb_checksum(skb, skb_transport_offset(skb),
-					ipv6_hdr(skb)->payload_len, 0));
-			break;
-		}
-	}
-}
-EXPORT_SYMBOL_GPL(qeth_tx_csum);