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Commit 8a75e7d6 authored by 's avatar Committed by Jeff Garzik
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Automatic merge of /spare/repo/netdev-2.6 branch qeth

parents f5a702b2 05e08a2a
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Showing with 914 additions and 901 deletions
drivers/s390/net/Makefile
View file @ 8a75e7d6
......@@ -9,6 +9,7 @@ obj-$(CONFIG_NETIUCV) += netiucv.o fsm.o
obj-$(CONFIG_SMSGIUCV) += smsgiucv.o
obj-$(CONFIG_CTC) += ctc.o fsm.o cu3088.o
obj-$(CONFIG_LCS) += lcs.o cu3088.o
qeth-y := qeth_main.o qeth_mpc.o qeth_sys.o qeth_eddp.o qeth_tso.o
obj-$(CONFIG_CLAW) += claw.o cu3088.o
qeth-y := qeth_main.o qeth_mpc.o qeth_sys.o qeth_eddp.o
qeth-$(CONFIG_PROC_FS) += qeth_proc.o
obj-$(CONFIG_QETH) += qeth.o
drivers/s390/net/ctcdbug.h
View file @ 8a75e7d6
/*
*
* linux/drivers/s390/net/ctcdbug.h ($Revision: 1.4 $)
* linux/drivers/s390/net/ctcdbug.h ($Revision: 1.5 $)
*
* CTC / ESCON network driver - s390 dbf exploit.
*
......@@ -9,7 +9,7 @@
* Author(s): Original Code written by
* Peter Tiedemann (ptiedem@de.ibm.com)
*
* $Revision: 1.4 $ $Date: 2004/10/15 09:26:58 $
* $Revision: 1.5 $ $Date: 2005/02/27 19:46:44 $
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
......@@ -25,9 +25,11 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef _CTCDBUG_H_
#define _CTCDBUG_H_
#include <asm/debug.h>
#include "ctcmain.h"
/**
* Debug Facility stuff
*/
......@@ -41,7 +43,7 @@
#define CTC_DBF_DATA_LEN 128
#define CTC_DBF_DATA_INDEX 3
#define CTC_DBF_DATA_NR_AREAS 1
#define CTC_DBF_DATA_LEVEL 2
#define CTC_DBF_DATA_LEVEL 3
#define CTC_DBF_TRACE_NAME "ctc_trace"
#define CTC_DBF_TRACE_LEN 16
......@@ -121,3 +123,5 @@ hex_dump(unsigned char *buf, size_t len)
printk("\n");
}
#endif
drivers/s390/net/ctcmain.c
View file @ 8a75e7d6
This diff is collapsed.
drivers/s390/net/ctcmain.h 0 → 100644
View file @ 8a75e7d6
/*
* $Id: ctcmain.h,v 1.4 2005/03/24 09:04:17 mschwide Exp $
*
* CTC / ESCON network driver
*
* Copyright (C) 2001 IBM Deutschland Entwicklung GmbH, IBM Corporation
* Author(s): Fritz Elfert (elfert@de.ibm.com, felfert@millenux.com)
Peter Tiedemann (ptiedem@de.ibm.com)
*
*
* Documentation used:
* - Principles of Operation (IBM doc#: SA22-7201-06)
* - Common IO/-Device Commands and Self Description (IBM doc#: SA22-7204-02)
* - Common IO/-Device Commands and Self Description (IBM doc#: SN22-5535)
* - ESCON Channel-to-Channel Adapter (IBM doc#: SA22-7203-00)
* - ESCON I/O Interface (IBM doc#: SA22-7202-029
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* RELEASE-TAG: CTC/ESCON network driver $Revision: 1.4 $
*
*/
#ifndef _CTCMAIN_H_
#define _CTCMAIN_H_
#include <asm/ccwdev.h>
#include <asm/ccwgroup.h>
#include "ctctty.h"
#include "fsm.h"
#include "cu3088.h"
/**
* CCW commands, used in this driver.
*/
#define CCW_CMD_WRITE 0x01
#define CCW_CMD_READ 0x02
#define CCW_CMD_SET_EXTENDED 0xc3
#define CCW_CMD_PREPARE 0xe3
#define CTC_PROTO_S390 0
#define CTC_PROTO_LINUX 1
#define CTC_PROTO_LINUX_TTY 2
#define CTC_PROTO_OS390 3
#define CTC_PROTO_MAX 3
#define CTC_BUFSIZE_LIMIT 65535
#define CTC_BUFSIZE_DEFAULT 32768
#define CTC_TIMEOUT_5SEC 5000
#define CTC_INITIAL_BLOCKLEN 2
#define READ 0
#define WRITE 1
#define CTC_ID_SIZE BUS_ID_SIZE+3
struct ctc_profile {
unsigned long maxmulti;
unsigned long maxcqueue;
unsigned long doios_single;
unsigned long doios_multi;
unsigned long txlen;
unsigned long tx_time;
struct timespec send_stamp;
};
/**
* Definition of one channel
*/
struct channel {
/**
* Pointer to next channel in list.
*/
struct channel *next;
char id[CTC_ID_SIZE];
struct ccw_device *cdev;
/**
* Type of this channel.
* CTC/A or Escon for valid channels.
*/
enum channel_types type;
/**
* Misc. flags. See CHANNEL_FLAGS_... below
*/
__u32 flags;
/**
* The protocol of this channel
*/
__u16 protocol;
/**
* I/O and irq related stuff
*/
struct ccw1 *ccw;
struct irb *irb;
/**
* RX/TX buffer size
*/
int max_bufsize;
/**
* Transmit/Receive buffer.
*/
struct sk_buff *trans_skb;
/**
* Universal I/O queue.
*/
struct sk_buff_head io_queue;
/**
* TX queue for collecting skb's during busy.
*/
struct sk_buff_head collect_queue;
/**
* Amount of data in collect_queue.
*/
int collect_len;
/**
* spinlock for collect_queue and collect_len
*/
spinlock_t collect_lock;
/**
* Timer for detecting unresposive
* I/O operations.
*/
fsm_timer timer;
/**
* Retry counter for misc. operations.
*/
int retry;
/**
* The finite state machine of this channel
*/
fsm_instance *fsm;
/**
* The corresponding net_device this channel
* belongs to.
*/
struct net_device *netdev;
struct ctc_profile prof;
unsigned char *trans_skb_data;
__u16 logflags;
};
#define CHANNEL_FLAGS_READ 0
#define CHANNEL_FLAGS_WRITE 1
#define CHANNEL_FLAGS_INUSE 2
#define CHANNEL_FLAGS_BUFSIZE_CHANGED 4
#define CHANNEL_FLAGS_FAILED 8
#define CHANNEL_FLAGS_WAITIRQ 16
#define CHANNEL_FLAGS_RWMASK 1
#define CHANNEL_DIRECTION(f) (f & CHANNEL_FLAGS_RWMASK)
#define LOG_FLAG_ILLEGALPKT 1
#define LOG_FLAG_ILLEGALSIZE 2
#define LOG_FLAG_OVERRUN 4
#define LOG_FLAG_NOMEM 8
#define CTC_LOGLEVEL_INFO 1
#define CTC_LOGLEVEL_NOTICE 2
#define CTC_LOGLEVEL_WARN 4
#define CTC_LOGLEVEL_EMERG 8
#define CTC_LOGLEVEL_ERR 16
#define CTC_LOGLEVEL_DEBUG 32
#define CTC_LOGLEVEL_CRIT 64
#define CTC_LOGLEVEL_DEFAULT \
(CTC_LOGLEVEL_INFO | CTC_LOGLEVEL_NOTICE | CTC_LOGLEVEL_WARN | CTC_LOGLEVEL_CRIT)
#define CTC_LOGLEVEL_MAX ((CTC_LOGLEVEL_CRIT<<1)-1)
#define ctc_pr_debug(fmt, arg...) \
do { if (loglevel & CTC_LOGLEVEL_DEBUG) printk(KERN_DEBUG fmt,##arg); } while (0)
#define ctc_pr_info(fmt, arg...) \
do { if (loglevel & CTC_LOGLEVEL_INFO) printk(KERN_INFO fmt,##arg); } while (0)
#define ctc_pr_notice(fmt, arg...) \
do { if (loglevel & CTC_LOGLEVEL_NOTICE) printk(KERN_NOTICE fmt,##arg); } while (0)
#define ctc_pr_warn(fmt, arg...) \
do { if (loglevel & CTC_LOGLEVEL_WARN) printk(KERN_WARNING fmt,##arg); } while (0)
#define ctc_pr_emerg(fmt, arg...) \
do { if (loglevel & CTC_LOGLEVEL_EMERG) printk(KERN_EMERG fmt,##arg); } while (0)
#define ctc_pr_err(fmt, arg...) \
do { if (loglevel & CTC_LOGLEVEL_ERR) printk(KERN_ERR fmt,##arg); } while (0)
#define ctc_pr_crit(fmt, arg...) \
do { if (loglevel & CTC_LOGLEVEL_CRIT) printk(KERN_CRIT fmt,##arg); } while (0)
struct ctc_priv {
struct net_device_stats stats;
unsigned long tbusy;
/**
* The finite state machine of this interface.
*/
fsm_instance *fsm;
/**
* The protocol of this device
*/
__u16 protocol;
/**
* Timer for restarting after I/O Errors
*/
fsm_timer restart_timer;
int buffer_size;
struct channel *channel[2];
};
/**
* Definition of our link level header.
*/
struct ll_header {
__u16 length;
__u16 type;
__u16 unused;
};
#define LL_HEADER_LENGTH (sizeof(struct ll_header))
/**
* Compatibility macros for busy handling
* of network devices.
*/
static __inline__ void
ctc_clear_busy(struct net_device * dev)
{
clear_bit(0, &(((struct ctc_priv *) dev->priv)->tbusy));
if (((struct ctc_priv *)dev->priv)->protocol != CTC_PROTO_LINUX_TTY)
netif_wake_queue(dev);
}
static __inline__ int
ctc_test_and_set_busy(struct net_device * dev)
{
if (((struct ctc_priv *)dev->priv)->protocol != CTC_PROTO_LINUX_TTY)
netif_stop_queue(dev);
return test_and_set_bit(0, &((struct ctc_priv *) dev->priv)->tbusy);
}
#endif
drivers/s390/net/ctctty.c
View file @ 8a75e7d6
/*
* $Id: ctctty.c,v 1.26 2004/08/04 11:06:55 mschwide Exp $
* $Id: ctctty.c,v 1.29 2005/04/05 08:50:44 mschwide Exp $
*
* CTC / ESCON network driver, tty interface.
*
......@@ -1056,8 +1056,7 @@ ctc_tty_close(struct tty_struct *tty, struct file *filp)
info->tty = 0;
tty->closing = 0;
if (info->blocked_open) {
set_current_state(TASK_INTERRUPTIBLE);
schedule_timeout(HZ/2);
msleep_interruptible(500);
wake_up_interruptible(&info->open_wait);
}
info->flags &= ~(CTC_ASYNC_NORMAL_ACTIVE | CTC_ASYNC_CLOSING);
......
drivers/s390/net/cu3088.c
View file @ 8a75e7d6
/*
* $Id: cu3088.c,v 1.34 2004/06/15 13:16:27 pavlic Exp $
* $Id: cu3088.c,v 1.35 2005/03/30 19:28:52 richtera Exp $
*
* CTC / LCS ccw_device driver
*
......@@ -39,6 +39,7 @@ const char *cu3088_type[] = {
"FICON channel",
"P390 LCS card",
"OSA LCS card",
"CLAW channel device",
"unknown channel type",
"unsupported channel type",
};
......@@ -51,6 +52,7 @@ static struct ccw_device_id cu3088_ids[] = {
{ CCW_DEVICE(0x3088, 0x1e), .driver_info = channel_type_ficon },
{ CCW_DEVICE(0x3088, 0x01), .driver_info = channel_type_p390 },
{ CCW_DEVICE(0x3088, 0x60), .driver_info = channel_type_osa2 },
{ CCW_DEVICE(0x3088, 0x61), .driver_info = channel_type_claw },
{ /* end of list */ }
};
......
drivers/s390/net/cu3088.h
View file @ 8a75e7d6
......@@ -23,6 +23,9 @@ enum channel_types {
/* Device is a OSA2 card */
channel_type_osa2,
/* Device is a CLAW channel device */
channel_type_claw,
/* Device is a channel, but we don't know
* anything about it */
channel_type_unknown,
......
drivers/s390/net/iucv.c
View file @ 8a75e7d6
/*
* $Id: iucv.c,v 1.43 2005/02/09 14:47:43 braunu Exp $
* $Id: iucv.c,v 1.45 2005/04/26 22:59:06 braunu Exp $
*
* IUCV network driver
*
......@@ -29,7 +29,7 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* RELEASE-TAG: IUCV lowlevel driver $Revision: 1.43 $
* RELEASE-TAG: IUCV lowlevel driver $Revision: 1.45 $
*
*/
......@@ -355,7 +355,7 @@ do { \
static void
iucv_banner(void)
{
char vbuf[] = "$Revision: 1.43 $";
char vbuf[] = "$Revision: 1.45 $";
char *version = vbuf;
if ((version = strchr(version, ':'))) {
......@@ -2553,12 +2553,12 @@ EXPORT_SYMBOL (iucv_resume);
#endif
EXPORT_SYMBOL (iucv_reply_prmmsg);
EXPORT_SYMBOL (iucv_send);
#if 0
EXPORT_SYMBOL (iucv_send2way);
EXPORT_SYMBOL (iucv_send2way_array);
EXPORT_SYMBOL (iucv_send_array);
EXPORT_SYMBOL (iucv_send2way_prmmsg);
EXPORT_SYMBOL (iucv_send2way_prmmsg_array);
#if 0
EXPORT_SYMBOL (iucv_send_array);
EXPORT_SYMBOL (iucv_send_prmmsg);
EXPORT_SYMBOL (iucv_setmask);
#endif
......
drivers/s390/net/lcs.c
View file @ 8a75e7d6
......@@ -11,7 +11,7 @@
* Frank Pavlic (pavlic@de.ibm.com) and
* Martin Schwidefsky <schwidefsky@de.ibm.com>
*
* $Revision: 1.96 $ $Date: 2004/11/11 13:42:33 $
* $Revision: 1.98 $ $Date: 2005/04/18 13:41:29 $
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
......@@ -59,7 +59,7 @@
/**
* initialization string for output
*/
#define VERSION_LCS_C "$Revision: 1.96 $"
#define VERSION_LCS_C "$Revision: 1.98 $"
static char version[] __initdata = "LCS driver ("VERSION_LCS_C "/" VERSION_LCS_H ")";
static char debug_buffer[255];
......@@ -1098,14 +1098,6 @@ lcs_check_multicast_support(struct lcs_card *card)
PRINT_ERR("Query IPAssist failed. Assuming unsupported!\n");
return -EOPNOTSUPP;
}
/* Print out supported assists: IPv6 */
PRINT_INFO("LCS device %s %s IPv6 support\n", card->dev->name,
(card->ip_assists_supported & LCS_IPASS_IPV6_SUPPORT) ?
"with" : "without");
/* Print out supported assist: Multicast */
PRINT_INFO("LCS device %s %s Multicast support\n", card->dev->name,
(card->ip_assists_supported & LCS_IPASS_MULTICAST_SUPPORT) ?
"with" : "without");
if (card->ip_assists_supported & LCS_IPASS_MULTICAST_SUPPORT)
return 0;
return -EOPNOTSUPP;
......@@ -1160,7 +1152,7 @@ lcs_fix_multicast_list(struct lcs_card *card)
}
}
/* re-insert all entries from the failed_list into ipm_list */
list_for_each_entry(ipm, &failed_list, list) {
list_for_each_entry_safe(ipm, tmp, &failed_list, list) {
list_del_init(&ipm->list);
list_add_tail(&ipm->list, &card->ipm_list);
}
......@@ -2198,30 +2190,39 @@ lcs_new_device(struct ccwgroup_device *ccwgdev)
if (!dev)
goto out;
card->dev = dev;
netdev_out:
card->dev->priv = card;
card->dev->open = lcs_open_device;
card->dev->stop = lcs_stop_device;
card->dev->hard_start_xmit = lcs_start_xmit;
card->dev->get_stats = lcs_getstats;
SET_MODULE_OWNER(dev);
if (lcs_register_netdev(ccwgdev) != 0)
goto out;
memcpy(card->dev->dev_addr, card->mac, LCS_MAC_LENGTH);
#ifdef CONFIG_IP_MULTICAST
if (!lcs_check_multicast_support(card))
card->dev->set_multicast_list = lcs_set_multicast_list;
#endif
netif_stop_queue(card->dev);
netdev_out:
lcs_set_allowed_threads(card,0xffffffff);
if (recover_state == DEV_STATE_RECOVER) {
lcs_set_multicast_list(card->dev);
card->dev->flags |= IFF_UP;
netif_wake_queue(card->dev);
card->state = DEV_STATE_UP;
} else
} else {
lcs_stopcard(card);
}
if (lcs_register_netdev(ccwgdev) != 0)
goto out;
/* Print out supported assists: IPv6 */
PRINT_INFO("LCS device %s %s IPv6 support\n", card->dev->name,
(card->ip_assists_supported & LCS_IPASS_IPV6_SUPPORT) ?
"with" : "without");
/* Print out supported assist: Multicast */
PRINT_INFO("LCS device %s %s Multicast support\n", card->dev->name,
(card->ip_assists_supported & LCS_IPASS_MULTICAST_SUPPORT) ?
"with" : "without");
return 0;
out:
......
drivers/s390/net/qeth.h
View file @ 8a75e7d6
......@@ -24,7 +24,7 @@
#include "qeth_mpc.h"
#define VERSION_QETH_H "$Revision: 1.135 $"
#define VERSION_QETH_H "$Revision: 1.139 $"
#ifdef CONFIG_QETH_IPV6
#define QETH_VERSION_IPV6 ":IPv6"
......@@ -288,7 +288,8 @@ qeth_is_ipa_enabled(struct qeth_ipa_info *ipa, enum qeth_ipa_funcs func)
#define QETH_TX_TIMEOUT 100 * HZ
#define QETH_HEADER_SIZE 32
#define MAX_PORTNO 15
#define QETH_FAKE_LL_LEN ETH_HLEN
#define QETH_FAKE_LL_LEN_ETH ETH_HLEN
#define QETH_FAKE_LL_LEN_TR (sizeof(struct trh_hdr)-TR_MAXRIFLEN+sizeof(struct trllc))
#define QETH_FAKE_LL_V6_ADDR_POS 24
/*IPv6 address autoconfiguration stuff*/
......@@ -369,6 +370,25 @@ struct qeth_hdr {
} hdr;
} __attribute__ ((packed));
/*TCP Segmentation Offload header*/
struct qeth_hdr_ext_tso {
__u16 hdr_tot_len;
__u8 imb_hdr_no;
__u8 reserved;
__u8 hdr_type;
__u8 hdr_version;
__u16 hdr_len;
__u32 payload_len;
__u16 mss;
__u16 dg_hdr_len;
__u8 padding[16];
} __attribute__ ((packed));
struct qeth_hdr_tso {
struct qeth_hdr hdr; /*hdr->hdr.l3.xxx*/
struct qeth_hdr_ext_tso ext;
} __attribute__ ((packed));
/* flags for qeth_hdr.flags */
#define QETH_HDR_PASSTHRU 0x10
......@@ -866,6 +886,7 @@ qeth_push_skb(struct qeth_card *card, struct sk_buff **skb, int size)
return hdr;
}
inline static int
qeth_get_hlen(__u8 link_type)
{
......@@ -873,19 +894,19 @@ qeth_get_hlen(__u8 link_type)
switch (link_type) {
case QETH_LINK_TYPE_HSTR:
case QETH_LINK_TYPE_LANE_TR:
return sizeof(struct qeth_hdr) + TR_HLEN;
return sizeof(struct qeth_hdr_tso) + TR_HLEN;
default:
#ifdef CONFIG_QETH_VLAN
return sizeof(struct qeth_hdr) + VLAN_ETH_HLEN;
return sizeof(struct qeth_hdr_tso) + VLAN_ETH_HLEN;
#else
return sizeof(struct qeth_hdr) + ETH_HLEN;
return sizeof(struct qeth_hdr_tso) + ETH_HLEN;
#endif
}
#else /* CONFIG_QETH_IPV6 */
#ifdef CONFIG_QETH_VLAN
return sizeof(struct qeth_hdr) + VLAN_HLEN;
return sizeof(struct qeth_hdr_tso) + VLAN_HLEN;
#else
return sizeof(struct qeth_hdr);
return sizeof(struct qeth_hdr_tso);
#endif
#endif /* CONFIG_QETH_IPV6 */
}
......
drivers/s390/net/qeth_eddp.c
View file @ 8a75e7d6
/*
*
* linux/drivers/s390/net/qeth_eddp.c ($Revision: 1.11 $)
* linux/drivers/s390/net/qeth_eddp.c ($Revision: 1.13 $)
*
* Enhanced Device Driver Packing (EDDP) support for the qeth driver.
*
......@@ -8,7 +8,7 @@
*
* Author(s): Thomas Spatzier <tspat@de.ibm.com>
*
* $Revision: 1.11 $ $Date: 2005/03/24 09:04:18 $
* $Revision: 1.13 $ $Date: 2005/05/04 20:19:18 $
*
*/
#include <linux/config.h>
......@@ -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,
......@@ -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)
......@@ -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)){
......@@ -202,40 +202,29 @@ qeth_eddp_fill_buffer(struct qeth_qdio_out_q *queue,
return flush_cnt;
}
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;
}
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];
......@@ -281,7 +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);
......@@ -292,7 +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 {
......@@ -424,7 +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;
......@@ -464,7 +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;
......@@ -474,13 +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)
......@@ -520,7 +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);
......@@ -600,7 +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,
......
drivers/s390/net/qeth_main.c
View file @ 8a75e7d6
This diff is collapsed.
drivers/s390/net/qeth_tso.c deleted 100644 → 0
View file @ f5a702b2
/*
* linux/drivers/s390/net/qeth_tso.c ($Revision: 1.6 $)
*
* Header file for qeth TCP Segmentation Offload support.
*
* Copyright 2004 IBM Corporation
*
* Author(s): Frank Pavlic <pavlic@de.ibm.com>
*
* $Revision: 1.6 $ $Date: 2005/03/24 09:04:18 $
*
*/
#include <linux/skbuff.h>
#include <linux/tcp.h>
#include <linux/ip.h>
#include <linux/ipv6.h>
#include <net/ip6_checksum.h>
#include "qeth.h"
#include "qeth_mpc.h"
#include "qeth_tso.h"
/**
* skb already partially prepared
* classic qdio header in skb->data
* */
static inline struct qeth_hdr_tso *
qeth_tso_prepare_skb(struct qeth_card *card, struct sk_buff **skb)
{
int rc = 0;
QETH_DBF_TEXT(trace, 5, "tsoprsk");
rc = qeth_realloc_headroom(card, skb,sizeof(struct qeth_hdr_ext_tso));
if (rc)
return NULL;
return qeth_push_skb(card, skb, sizeof(struct qeth_hdr_ext_tso));
}
/**
* fill header for a TSO packet
*/
static inline void
qeth_tso_fill_header(struct qeth_card *card, struct sk_buff *skb)
{
struct qeth_hdr_tso *hdr;
struct tcphdr *tcph;
struct iphdr *iph;
QETH_DBF_TEXT(trace, 5, "tsofhdr");
hdr = (struct qeth_hdr_tso *) skb->data;
iph = skb->nh.iph;
tcph = skb->h.th;
/*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)->tso_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));
}
/**
* change some header values as requested by hardware
*/
static inline void
qeth_tso_set_tcpip_header(struct qeth_card *card, struct sk_buff *skb)
{
struct iphdr *iph;
struct ipv6hdr *ip6h;
struct tcphdr *tcph;
iph = skb->nh.iph;
ip6h = skb->nh.ipv6h;
tcph = skb->h.th;
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);
return;
}
/*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 inline struct qeth_hdr_tso *
qeth_tso_prepare_packet(struct qeth_card *card, struct sk_buff *skb,
int ipv, int cast_type)
{
struct qeth_hdr_tso *hdr;
int rc = 0;
QETH_DBF_TEXT(trace, 5, "tsoprep");
/*get headroom for tso qdio header */
hdr = (struct qeth_hdr_tso *) qeth_tso_prepare_skb(card, &skb);
if (hdr == NULL) {
QETH_DBF_TEXT_(trace, 4, "2err%d", rc);
return NULL;
}
memset(hdr, 0, sizeof(struct qeth_hdr_tso));
/*fill first 32 bytes of qdio header as used
*FIXME: TSO has two struct members
* with different names but same size
* */
qeth_fill_header(card, &hdr->hdr, skb, ipv, cast_type);
qeth_tso_fill_header(card, skb);
qeth_tso_set_tcpip_header(card, skb);
return hdr;
}
static inline int
qeth_tso_get_queue_buffer(struct qeth_qdio_out_q *queue)
{
struct qeth_qdio_out_buffer *buffer;
int flush_cnt = 0;
QETH_DBF_TEXT(trace, 5, "tsobuf");
/* force to non-packing*/
if (queue->do_pack)
queue->do_pack = 0;
buffer = &queue->bufs[queue->next_buf_to_fill];
/* get a new buffer if current is already in use*/
if ((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) &&
(buffer->next_element_to_fill > 0)) {
atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
QDIO_MAX_BUFFERS_PER_Q;
flush_cnt++;
}
return flush_cnt;
}
static inline void
__qeth_tso_fill_buffer_frag(struct qeth_qdio_out_buffer *buf,
struct sk_buff *skb)
{
struct skb_frag_struct *frag;
struct qdio_buffer *buffer;
int fragno, cnt, element;
unsigned long addr;
QETH_DBF_TEXT(trace, 6, "tsfilfrg");
/*initialize variables ...*/
fragno = skb_shinfo(skb)->nr_frags;
buffer = buf->buffer;
element = buf->next_element_to_fill;
/*fill buffer elements .....*/
for (cnt = 0; cnt < fragno; cnt++) {
frag = &skb_shinfo(skb)->frags[cnt];
addr = (page_to_pfn(frag->page) << PAGE_SHIFT) +
frag->page_offset;
buffer->element[element].addr = (char *)addr;
buffer->element[element].length = frag->size;
if (cnt < (fragno - 1))
buffer->element[element].flags =
SBAL_FLAGS_MIDDLE_FRAG;
else
buffer->element[element].flags =
SBAL_FLAGS_LAST_FRAG;
element++;
}
buf->next_element_to_fill = element;
}
static inline int
qeth_tso_fill_buffer(struct qeth_qdio_out_buffer *buf,
struct sk_buff *skb)
{
int length, length_here, element;
int hdr_len;
struct qdio_buffer *buffer;
struct qeth_hdr_tso *hdr;
char *data;
QETH_DBF_TEXT(trace, 3, "tsfilbuf");
/*increment user count and queue skb ...*/
atomic_inc(&skb->users);
skb_queue_tail(&buf->skb_list, skb);
/*initialize all variables...*/
buffer = buf->buffer;
hdr = (struct qeth_hdr_tso *)skb->data;
hdr_len = sizeof(struct qeth_hdr_tso) + hdr->ext.dg_hdr_len;
data = skb->data + hdr_len;
length = skb->len - hdr_len;
element = buf->next_element_to_fill;
/*fill first buffer entry only with header information */
buffer->element[element].addr = skb->data;
buffer->element[element].length = hdr_len;
buffer->element[element].flags = SBAL_FLAGS_FIRST_FRAG;
buf->next_element_to_fill++;
if (skb_shinfo(skb)->nr_frags > 0) {
__qeth_tso_fill_buffer_frag(buf, skb);
goto out;
}
/*start filling buffer entries ...*/
element++;
while (length > 0) {
/* length_here is the remaining amount of data in this page */
length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE);
if (length < length_here)
length_here = length;
buffer->element[element].addr = data;
buffer->element[element].length = length_here;
length -= length_here;
if (!length)
buffer->element[element].flags =
SBAL_FLAGS_LAST_FRAG;
else
buffer->element[element].flags =
SBAL_FLAGS_MIDDLE_FRAG;
data += length_here;
element++;
}
/*set the buffer to primed ...*/
buf->next_element_to_fill = element;
out:
atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
return 1;
}
int
qeth_tso_send_packet(struct qeth_card *card, struct sk_buff *skb,
struct qeth_qdio_out_q *queue, int ipv, int cast_type)
{
int flush_cnt = 0;
struct qeth_hdr_tso *hdr;
struct qeth_qdio_out_buffer *buffer;
int start_index;
QETH_DBF_TEXT(trace, 3, "tsosend");
if (!(hdr = qeth_tso_prepare_packet(card, skb, ipv, cast_type)))
return -ENOMEM;
/*check if skb fits in one SBAL ...*/
if (!(qeth_get_elements_no(card, (void*)hdr, skb)))
return -EINVAL;
/*lock queue, force switching to non-packing and send it ...*/
while (atomic_compare_and_swap(QETH_OUT_Q_UNLOCKED,
QETH_OUT_Q_LOCKED,
&queue->state));
start_index = queue->next_buf_to_fill;
buffer = &queue->bufs[queue->next_buf_to_fill];
/*check if card is too busy ...*/
if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY){
card->stats.tx_dropped++;
goto out;
}
/*let's force to non-packing and get a new SBAL*/
flush_cnt += qeth_tso_get_queue_buffer(queue);
buffer = &queue->bufs[queue->next_buf_to_fill];
if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) {
card->stats.tx_dropped++;
goto out;
}
flush_cnt += qeth_tso_fill_buffer(buffer, skb);
queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
QDIO_MAX_BUFFERS_PER_Q;
out:
atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
if (flush_cnt)
qeth_flush_buffers(queue, 0, start_index, flush_cnt);
/*do some statistics */
card->stats.tx_packets++;
card->stats.tx_bytes += skb->len;
return 0;
}
drivers/s390/net/qeth_tso.h
View file @ 8a75e7d6
/*
* linux/drivers/s390/net/qeth_tso.h ($Revision: 1.4 $)
* linux/drivers/s390/net/qeth_tso.h ($Revision: 1.7 $)
*
* Header file for qeth TCP Segmentation Offload support.
*
......@@ -7,52 +7,148 @@
*
* Author(s): Frank Pavlic <pavlic@de.ibm.com>
*
* $Revision: 1.4 $ $Date: 2005/03/24 09:04:18 $
* $Revision: 1.7 $ $Date: 2005/05/04 20:19:18 $
*
*/
#ifndef __QETH_TSO_H__
#define __QETH_TSO_H__
#include <linux/skbuff.h>
#include <linux/tcp.h>
#include <linux/ip.h>
#include <linux/ipv6.h>
#include <net/ip6_checksum.h>
#include "qeth.h"
#include "qeth_mpc.h"
extern int
qeth_tso_send_packet(struct qeth_card *, struct sk_buff *,
struct qeth_qdio_out_q *, int , int);
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));
static inline struct qeth_hdr_tso *
qeth_tso_prepare_skb(struct qeth_card *card, struct sk_buff **skb)
{
QETH_DBF_TEXT(trace, 5, "tsoprsk");
return qeth_push_skb(card, skb, sizeof(struct qeth_hdr_tso));
}
/**
* fill header for a TSO packet
*/
static inline void
qeth_tso_fill_header(struct qeth_card *card, struct sk_buff *skb)
{
struct qeth_hdr_tso *hdr;
struct tcphdr *tcph;
struct iphdr *iph;
QETH_DBF_TEXT(trace, 5, "tsofhdr");
hdr = (struct qeth_hdr_tso *) skb->data;
iph = skb->nh.iph;
tcph = skb->h.th;
/*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)->tso_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));
}
/**
* change some header values as requested by hardware
*/
static inline void
qeth_tso_set_tcpip_header(struct qeth_card *card, struct sk_buff *skb)
{
struct iphdr *iph;
struct ipv6hdr *ip6h;
struct tcphdr *tcph;
struct qeth_hdr_tso {
struct qeth_hdr hdr; /*hdr->hdr.l3.xxx*/
struct qeth_hdr_ext_tso ext;
} __attribute__ ((packed));
iph = skb->nh.iph;
ip6h = skb->nh.ipv6h;
tcph = skb->h.th;
/*some helper functions*/
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);
return;
}
/*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 inline int
qeth_get_elements_no(struct qeth_card *card, void *hdr, struct sk_buff *skb)
qeth_tso_prepare_packet(struct qeth_card *card, struct sk_buff *skb,
int ipv, int cast_type)
{
struct qeth_hdr_tso *hdr;
QETH_DBF_TEXT(trace, 5, "tsoprep");
hdr = (struct qeth_hdr_tso *) qeth_tso_prepare_skb(card, &skb);
if (hdr == NULL) {
QETH_DBF_TEXT(trace, 4, "tsoperr");
return -ENOMEM;
}
memset(hdr, 0, sizeof(struct qeth_hdr_tso));
/*fill first 32 bytes of qdio header as used
*FIXME: TSO has two struct members
* with different names but same size
* */
qeth_fill_header(card, &hdr->hdr, skb, ipv, cast_type);
qeth_tso_fill_header(card, skb);
qeth_tso_set_tcpip_header(card, skb);
return 0;
}
static inline void
__qeth_fill_buffer_frag(struct sk_buff *skb, struct qdio_buffer *buffer,
int is_tso, int *next_element_to_fill)
{
int elements_needed = 0;
if (skb_shinfo(skb)->nr_frags > 0)
elements_needed = (skb_shinfo(skb)->nr_frags + 1);
if (elements_needed == 0 )
elements_needed = 1 + (((((unsigned long) hdr) % PAGE_SIZE)
+ skb->len) >> PAGE_SHIFT);
if (elements_needed > QETH_MAX_BUFFER_ELEMENTS(card)){
PRINT_ERR("qeth_do_send_packet: invalid size of "
"IP packet. Discarded.");
return 0;
struct skb_frag_struct *frag;
int fragno;
unsigned long addr;
int element, cnt, dlen;
fragno = skb_shinfo(skb)->nr_frags;
element = *next_element_to_fill;
dlen = 0;
if (is_tso)
buffer->element[element].flags =
SBAL_FLAGS_MIDDLE_FRAG;
else
buffer->element[element].flags =
SBAL_FLAGS_FIRST_FRAG;
if ( (dlen = (skb->len - skb->data_len)) ) {
buffer->element[element].addr = skb->data;
buffer->element[element].length = dlen;
element++;
}
for (cnt = 0; cnt < fragno; cnt++) {
frag = &skb_shinfo(skb)->frags[cnt];
addr = (page_to_pfn(frag->page) << PAGE_SHIFT) +
frag->page_offset;
buffer->element[element].addr = (char *)addr;
buffer->element[element].length = frag->size;
if (cnt < (fragno - 1))
buffer->element[element].flags =
SBAL_FLAGS_MIDDLE_FRAG;
else
buffer->element[element].flags =
SBAL_FLAGS_LAST_FRAG;
element++;
}
return elements_needed;
*next_element_to_fill = element;
}
#endif /* __QETH_TSO_H__ */
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