qeth: remove old qeth files (19a3da6c) · Commits · e / devices / android_kernel_xiaomi_markw

drivers/s390/net/qeth.h

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File deleted.

Preview size limit exceeded, changes collapsed.

drivers/s390/net/qeth_eddp.c

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		/*
		* linux/drivers/s390/net/qeth_eddp.c
		*
		* Enhanced Device Driver Packing (EDDP) support for the qeth driver.
		*
		* Copyright 2004 IBM Corporation
		*
		* Author(s): Thomas Spatzier <tspat@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 "qeth.h"
		#include "qeth_mpc.h"
		#include "qeth_eddp.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 inline 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);
		}

		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 {
		PRINT_WARN("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)){
		PRINT_WARN("no memory to create eddp context "
		"reference\n");
		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((u8 *)&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((u8 *)&eddp->nh.ip6.h.saddr,
		sizeof(struct in6_addr), 0);
		phcsum = csum_partial((u8 *)&eddp->nh.ip6.h.daddr,
		sizeof(struct in6_addr), phcsum);
		proto = htonl(IPPROTO_TCP);
		phcsum = csum_partial((u8 *)&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);
		#ifdef CONFIG_QETH_VLAN
		if (eddp->mac.h_proto == __constant_htons(ETH_P_8021Q))
		eddp->skb_offset += VLAN_HLEN;
		#endif /* CONFIG_QETH_VLAN */
		}
		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;
		#ifdef CONFIG_QETH_VLAN
		if (eddp->mac.h_proto == __constant_htons(ETH_P_8021Q))
		eddp->qh.hdr.l2.pkt_length += VLAN_HLEN;
		#endif /* CONFIG_QETH_VLAN */
		} 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);
		#ifdef CONFIG_QETH_VLAN
		if (eddp->mac.h_proto == __constant_htons(ETH_P_8021Q)) {
		eddp->vlan[0] = skb->protocol;
		eddp->vlan[1] = htons(vlan_tx_tag_get(skb));
		}
		#endif /* CONFIG_QETH_VLAN */
		}
		/* 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_free_page(GFP_ATOMIC);
		if (addr == NULL){
		QETH_DBF_TEXT(trace, 2, "ceddpcn3");
		ctx->num_pages = i;
		qeth_eddp_free_context(ctx);
		return NULL;
		}
		memset(addr, 0, PAGE_SIZE);
		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;
		}

drivers/s390/net/qeth_eddp.h

deleted100644 → 0

+0 −84

Original line number	Diff line number	Diff line
		/*
		* linux/drivers/s390/net/qeth_eddp.h
		*
		* Header file for qeth enhanced device driver packing.
		*
		* Copyright 2004 IBM Corporation
		*
		* Author(s): Thomas Spatzier <tspat@de.ibm.com>
		*
		*/
		#ifndef __QETH_EDDP_H__
		#define __QETH_EDDP_H__

		struct qeth_eddp_element {
		u32 flags;
		u32 length;
		void *addr;
		};

		struct qeth_eddp_context {
		atomic_t refcnt;
		enum qeth_large_send_types type;
		int num_pages; /* # of allocated pages */
		u8 *pages; / pointers to pages */
		int offset; /* offset in ctx during creation */
		int num_elements; /* # of required 'SBALEs' */
		struct qeth_eddp_element elements; / array of 'SBALEs' */
		int elements_per_skb; /* # of 'SBALEs' per skb **/
		};

		struct qeth_eddp_context_reference {
		struct list_head list;
		struct qeth_eddp_context *ctx;
		};

		extern struct qeth_eddp_context *
		qeth_eddp_create_context(struct qeth_card ,struct sk_buff ,
		struct qeth_hdr *, unsigned char);

		extern void
		qeth_eddp_put_context(struct qeth_eddp_context *);

		extern int
		qeth_eddp_fill_buffer(struct qeth_qdio_out_q ,struct qeth_eddp_context ,int);

		extern void
		qeth_eddp_buf_release_contexts(struct qeth_qdio_out_buffer *);

		extern int
		qeth_eddp_check_buffers_for_context(struct qeth_qdio_out_q *,
		struct qeth_eddp_context *);
		/*
		* Data used for fragmenting a IP packet.
		*/
		struct qeth_eddp_data {
		struct qeth_hdr qh;
		struct ethhdr mac;
		__be16 vlan[2];
		union {
		struct {
		struct iphdr h;
		u8 options[40];
		} ip4;
		struct {
		struct ipv6hdr h;
		} ip6;
		} nh;
		u8 nhl;
		void nh_in_ctx; / address of nh within the ctx */
		union {
		struct {
		struct tcphdr h;
		u8 options[40];
		} tcp;
		} th;
		u8 thl;
		void th_in_ctx; / address of th within the ctx */
		struct sk_buff *skb;
		int skb_offset;
		int frag;
		int frag_offset;
		} __attribute__ ((packed));

		#endif /* __QETH_EDDP_H__ */

drivers/s390/net/qeth_fs.h

deleted100644 → 0

+0 −168

Original line number	Diff line number	Diff line
		/*
		* linux/drivers/s390/net/qeth_fs.h
		*
		* Linux on zSeries OSA Express and HiperSockets support.
		*
		* This header file contains definitions related to sysfs and procfs.
		*
		* Copyright 2000,2003 IBM Corporation
		* Author(s): Thomas Spatzier <tspat@de.ibm.com>
		*
		*/
		#ifndef __QETH_FS_H__
		#define __QETH_FS_H__

		#ifdef CONFIG_PROC_FS
		extern int
		qeth_create_procfs_entries(void);

		extern void
		qeth_remove_procfs_entries(void);
		#else
		static inline int
		qeth_create_procfs_entries(void)
		{
		return 0;
		}

		static inline void
		qeth_remove_procfs_entries(void)
		{
		}
		#endif /* CONFIG_PROC_FS */

		extern int
		qeth_create_device_attributes(struct device *dev);

		extern void
		qeth_remove_device_attributes(struct device *dev);

		extern int
		qeth_create_device_attributes_osn(struct device *dev);

		extern void
		qeth_remove_device_attributes_osn(struct device *dev);

		extern int
		qeth_create_driver_attributes(void);

		extern void
		qeth_remove_driver_attributes(void);

		/*
		* utility functions used in qeth_proc.c and qeth_sys.c
		*/

		static inline const char *
		qeth_get_checksum_str(struct qeth_card *card)
		{
		if (card->options.checksum_type == SW_CHECKSUMMING)
		return "sw";
		else if (card->options.checksum_type == HW_CHECKSUMMING)
		return "hw";
		else
		return "no";
		}

		static inline const char *
		qeth_get_prioq_str(struct qeth_card card, char buf)
		{
		if (card->qdio.do_prio_queueing == QETH_NO_PRIO_QUEUEING)
		sprintf(buf, "always_q_%i", card->qdio.default_out_queue);
		else
		strcpy(buf, (card->qdio.do_prio_queueing ==
		QETH_PRIO_Q_ING_PREC)?
		"by_prec." : "by_ToS");
		return buf;
		}

		static inline const char *
		qeth_get_bufsize_str(struct qeth_card *card)
		{
		if (card->qdio.in_buf_size == 16384)
		return "16k";
		else if (card->qdio.in_buf_size == 24576)
		return "24k";
		else if (card->qdio.in_buf_size == 32768)
		return "32k";
		else if (card->qdio.in_buf_size == 40960)
		return "40k";
		else
		return "64k";
		}

		static inline const char *
		qeth_get_cardname(struct qeth_card *card)
		{
		if (card->info.guestlan) {
		switch (card->info.type) {
		case QETH_CARD_TYPE_OSAE:
		return " Guest LAN QDIO";
		case QETH_CARD_TYPE_IQD:
		return " Guest LAN Hiper";
		default:
		return " unknown";
		}
		} else {
		switch (card->info.type) {
		case QETH_CARD_TYPE_OSAE:
		return " OSD Express";
		case QETH_CARD_TYPE_IQD:
		return " HiperSockets";
		case QETH_CARD_TYPE_OSN:
		return " OSN QDIO";
		default:
		return " unknown";
		}
		}
		return " n/a";
		}

		/* max length to be returned: 14 */
		static inline const char *
		qeth_get_cardname_short(struct qeth_card *card)
		{
		if (card->info.guestlan){
		switch (card->info.type){
		case QETH_CARD_TYPE_OSAE:
		return "GuestLAN QDIO";
		case QETH_CARD_TYPE_IQD:
		return "GuestLAN Hiper";
		default:
		return "unknown";
		}
		} else {
		switch (card->info.type) {
		case QETH_CARD_TYPE_OSAE:
		switch (card->info.link_type) {
		case QETH_LINK_TYPE_FAST_ETH:
		return "OSD_100";
		case QETH_LINK_TYPE_HSTR:
		return "HSTR";
		case QETH_LINK_TYPE_GBIT_ETH:
		return "OSD_1000";
		case QETH_LINK_TYPE_10GBIT_ETH:
		return "OSD_10GIG";
		case QETH_LINK_TYPE_LANE_ETH100:
		return "OSD_FE_LANE";
		case QETH_LINK_TYPE_LANE_TR:
		return "OSD_TR_LANE";
		case QETH_LINK_TYPE_LANE_ETH1000:
		return "OSD_GbE_LANE";
		case QETH_LINK_TYPE_LANE:
		return "OSD_ATM_LANE";
		default:
		return "OSD_Express";
		}
		case QETH_CARD_TYPE_IQD:
		return "HiperSockets";
		case QETH_CARD_TYPE_OSN:
		return "OSN";
		default:
		return "unknown";
		}
		}
		return "n/a";
		}

		#endif /* __QETH_FS_H__ */

drivers/s390/net/qeth_main.c

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File deleted.

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