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yaml
---
r: 1432
b: refs/heads/master
c: 05e08a2
h: refs/heads/master
v: v3
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Frank Pavlic authored and Jeff Garzik committed May 15, 2005
1 parent 5e7d33b commit 5dcb9da
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Showing 7 changed files with 274 additions and 405 deletions.
2 changes: 1 addition & 1 deletion [refs]
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Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 9a4558193662e933588ee53e0202c103a68c9366
refs/heads/master: 05e08a2a297371564020f76d1bf8b3a931d5e1ed
2 changes: 1 addition & 1 deletion trunk/drivers/s390/net/Makefile
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Original file line number Diff line number Diff line change
Expand Up @@ -10,6 +10,6 @@ obj-$(CONFIG_SMSGIUCV) += smsgiucv.o
obj-$(CONFIG_CTC) += ctc.o fsm.o cu3088.o
obj-$(CONFIG_LCS) += lcs.o cu3088.o
obj-$(CONFIG_CLAW) += claw.o cu3088.o
qeth-y := qeth_main.o qeth_mpc.o qeth_sys.o qeth_eddp.o qeth_tso.o
qeth-y := qeth_main.o qeth_mpc.o qeth_sys.o qeth_eddp.o
qeth-$(CONFIG_PROC_FS) += qeth_proc.o
obj-$(CONFIG_QETH) += qeth.o
41 changes: 25 additions & 16 deletions trunk/drivers/s390/net/qeth.h
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Original file line number Diff line number Diff line change
Expand Up @@ -24,7 +24,7 @@

#include "qeth_mpc.h"

#define VERSION_QETH_H "$Revision: 1.137 $"
#define VERSION_QETH_H "$Revision: 1.139 $"

#ifdef CONFIG_QETH_IPV6
#define QETH_VERSION_IPV6 ":IPv6"
Expand Down Expand Up @@ -370,6 +370,25 @@ struct qeth_hdr {
} hdr;
} __attribute__ ((packed));

/*TCP Segmentation Offload header*/
struct qeth_hdr_ext_tso {
__u16 hdr_tot_len;
__u8 imb_hdr_no;
__u8 reserved;
__u8 hdr_type;
__u8 hdr_version;
__u16 hdr_len;
__u32 payload_len;
__u16 mss;
__u16 dg_hdr_len;
__u8 padding[16];
} __attribute__ ((packed));

struct qeth_hdr_tso {
struct qeth_hdr hdr; /*hdr->hdr.l3.xxx*/
struct qeth_hdr_ext_tso ext;
} __attribute__ ((packed));


/* flags for qeth_hdr.flags */
#define QETH_HDR_PASSTHRU 0x10
Expand Down Expand Up @@ -867,16 +886,6 @@ qeth_push_skb(struct qeth_card *card, struct sk_buff **skb, int size)
return hdr;
}

static inline int
qeth_get_skb_data_len(struct sk_buff *skb)
{
int len = skb->len;
int i;

for (i = 0; i < skb_shinfo(skb)->nr_frags; ++i)
len -= skb_shinfo(skb)->frags[i].size;
return len;
}

inline static int
qeth_get_hlen(__u8 link_type)
Expand All @@ -885,19 +894,19 @@ qeth_get_hlen(__u8 link_type)
switch (link_type) {
case QETH_LINK_TYPE_HSTR:
case QETH_LINK_TYPE_LANE_TR:
return sizeof(struct qeth_hdr) + TR_HLEN;
return sizeof(struct qeth_hdr_tso) + TR_HLEN;
default:
#ifdef CONFIG_QETH_VLAN
return sizeof(struct qeth_hdr) + VLAN_ETH_HLEN;
return sizeof(struct qeth_hdr_tso) + VLAN_ETH_HLEN;
#else
return sizeof(struct qeth_hdr) + ETH_HLEN;
return sizeof(struct qeth_hdr_tso) + ETH_HLEN;
#endif
}
#else /* CONFIG_QETH_IPV6 */
#ifdef CONFIG_QETH_VLAN
return sizeof(struct qeth_hdr) + VLAN_HLEN;
return sizeof(struct qeth_hdr_tso) + VLAN_HLEN;
#else
return sizeof(struct qeth_hdr);
return sizeof(struct qeth_hdr_tso);
#endif
#endif /* CONFIG_QETH_IPV6 */
}
Expand Down
40 changes: 20 additions & 20 deletions trunk/drivers/s390/net/qeth_eddp.c
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Original file line number Diff line number Diff line change
@@ -1,14 +1,14 @@
/*
*
* linux/drivers/s390/net/qeth_eddp.c ($Revision: 1.12 $)
* linux/drivers/s390/net/qeth_eddp.c ($Revision: 1.13 $)
*
* Enhanced Device Driver Packing (EDDP) support for the qeth driver.
*
* Copyright 2004 IBM Corporation
*
* Author(s): Thomas Spatzier <tspat@de.ibm.com>
*
* $Revision: 1.12 $ $Date: 2005/04/01 21:40:40 $
* $Revision: 1.13 $ $Date: 2005/05/04 20:19:18 $
*
*/
#include <linux/config.h>
Expand Down Expand Up @@ -85,7 +85,7 @@ 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,
Expand Down Expand Up @@ -139,7 +139,7 @@ qeth_eddp_fill_buffer(struct qeth_qdio_out_q *queue,
"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)
Expand All @@ -152,7 +152,7 @@ qeth_eddp_fill_buffer(struct qeth_qdio_out_q *queue,
* and increment ctx's refcnt */
must_refcnt = 1;
continue;
}
}
if (must_refcnt){
must_refcnt = 0;
if (qeth_eddp_buf_ref_context(buf, ctx)){
Expand Down Expand Up @@ -204,27 +204,27 @@ qeth_eddp_fill_buffer(struct qeth_qdio_out_q *queue,

static inline void
qeth_eddp_create_segment_hdrs(struct qeth_eddp_context *ctx,
struct qeth_eddp_data *eddp)
struct qeth_eddp_data *eddp, int data_len)
{
u8 *page;
int page_remainder;
int page_offset;
int hdr_len;
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];
hdr_len = eddp->nhl + eddp->thl;
pkt_len = eddp->nhl + eddp->thl + data_len;
/* FIXME: layer2 and VLAN !!! */
if (eddp->qh.hdr.l2.id == QETH_HEADER_TYPE_LAYER2)
hdr_len += ETH_HLEN;
pkt_len += ETH_HLEN;
if (eddp->mac.h_proto == __constant_htons(ETH_P_8021Q))
hdr_len += VLAN_HLEN;
/* does complete header fit in current page ? */
pkt_len += VLAN_HLEN;
/* does complete packet fit in current page ? */
page_remainder = PAGE_SIZE - page_offset;
if (page_remainder < (sizeof(struct qeth_hdr) + hdr_len)){
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];
Expand Down Expand Up @@ -270,7 +270,7 @@ qeth_eddp_copy_data_tcp(char *dst, struct qeth_eddp_data *eddp, int len,
int left_in_frag;
int copy_len;
u8 *src;

QETH_DBF_TEXT(trace, 5, "eddpcdtc");
if (skb_shinfo(eddp->skb)->nr_frags == 0) {
memcpy(dst, eddp->skb->data + eddp->skb_offset, len);
Expand All @@ -281,7 +281,7 @@ qeth_eddp_copy_data_tcp(char *dst, struct qeth_eddp_data *eddp, int len,
while (len > 0) {
if (eddp->frag < 0) {
/* we're in skb->data */
left_in_frag = qeth_get_skb_data_len(eddp->skb)
left_in_frag = (eddp->skb->len - eddp->skb->data_len)
- eddp->skb_offset;
src = eddp->skb->data + eddp->skb_offset;
} else {
Expand Down Expand Up @@ -413,7 +413,7 @@ __qeth_eddp_fill_context_tcp(struct qeth_eddp_context *ctx,
struct tcphdr *tcph;
int data_len;
u32 hcsum;

QETH_DBF_TEXT(trace, 5, "eddpftcp");
eddp->skb_offset = sizeof(struct qeth_hdr) + eddp->nhl + eddp->thl;
tcph = eddp->skb->h.th;
Expand Down Expand Up @@ -453,7 +453,7 @@ __qeth_eddp_fill_context_tcp(struct qeth_eddp_context *ctx,
else
hcsum = qeth_eddp_check_tcp6_hdr(eddp, data_len);
/* fill the next segment into the context */
qeth_eddp_create_segment_hdrs(ctx, eddp);
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;
Expand All @@ -463,13 +463,13 @@ __qeth_eddp_fill_context_tcp(struct qeth_eddp_context *ctx,
eddp->th.tcp.h.seq += data_len;
}
}

static inline 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 == ETH_P_IP)
Expand Down Expand Up @@ -509,7 +509,7 @@ 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)->tso_size + hdr_len);
Expand Down Expand Up @@ -589,7 +589,7 @@ 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 == ETH_P_IP)
ctx = qeth_eddp_create_context_generic(card, skb,
Expand Down
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