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-rw-r--r--drivers/s390/net/Makefile2
-rw-r--r--drivers/s390/net/claw.c485
-rw-r--r--drivers/s390/net/ctcm_fsms.c5
-rw-r--r--drivers/s390/net/ctcm_main.c39
-rw-r--r--drivers/s390/net/ctcm_mpc.c17
-rw-r--r--drivers/s390/net/lcs.c33
-rw-r--r--drivers/s390/net/netiucv.c16
-rw-r--r--drivers/s390/net/qeth_core.h8
-rw-r--r--drivers/s390/net/qeth_core_main.c165
-rw-r--r--drivers/s390/net/qeth_core_offl.c699
-rw-r--r--drivers/s390/net/qeth_core_offl.h76
-rw-r--r--drivers/s390/net/qeth_core_sys.c4
-rw-r--r--drivers/s390/net/qeth_l2_main.c99
-rw-r--r--drivers/s390/net/qeth_l3_main.c129
14 files changed, 487 insertions, 1290 deletions
diff --git a/drivers/s390/net/Makefile b/drivers/s390/net/Makefile
index 6382c04d2bdf..96eddb3b1d08 100644
--- a/drivers/s390/net/Makefile
+++ b/drivers/s390/net/Makefile
@@ -8,7 +8,7 @@ obj-$(CONFIG_NETIUCV) += netiucv.o fsm.o
obj-$(CONFIG_SMSGIUCV) += smsgiucv.o
obj-$(CONFIG_LCS) += lcs.o cu3088.o
obj-$(CONFIG_CLAW) += claw.o cu3088.o
-qeth-y += qeth_core_sys.o qeth_core_main.o qeth_core_mpc.o qeth_core_offl.o
+qeth-y += qeth_core_sys.o qeth_core_main.o qeth_core_mpc.o
obj-$(CONFIG_QETH) += qeth.o
qeth_l2-y += qeth_l2_main.o
obj-$(CONFIG_QETH_L2) += qeth_l2.o
diff --git a/drivers/s390/net/claw.c b/drivers/s390/net/claw.c
index f5e618562c5f..30a43cc79e76 100644
--- a/drivers/s390/net/claw.c
+++ b/drivers/s390/net/claw.c
@@ -60,6 +60,9 @@
* 1.25 Added Packing support
* 1.5
*/
+
+#define KMSG_COMPONENT "claw"
+
#include <asm/ccwdev.h>
#include <asm/ccwgroup.h>
#include <asm/debug.h>
@@ -94,7 +97,7 @@
CLAW uses the s390dbf file system see claw_trace and claw_setup
*/
-
+static char version[] __initdata = "CLAW driver";
static char debug_buffer[255];
/**
* Debug Facility Stuff
@@ -206,20 +209,30 @@ static struct net_device_stats *claw_stats(struct net_device *dev);
static int pages_to_order_of_mag(int num_of_pages);
static struct sk_buff *claw_pack_skb(struct claw_privbk *privptr);
/* sysfs Functions */
-static ssize_t claw_hname_show(struct device *dev, struct device_attribute *attr, char *buf);
-static ssize_t claw_hname_write(struct device *dev, struct device_attribute *attr,
+static ssize_t claw_hname_show(struct device *dev,
+ struct device_attribute *attr, char *buf);
+static ssize_t claw_hname_write(struct device *dev,
+ struct device_attribute *attr,
const char *buf, size_t count);
-static ssize_t claw_adname_show(struct device *dev, struct device_attribute *attr, char *buf);
-static ssize_t claw_adname_write(struct device *dev, struct device_attribute *attr,
+static ssize_t claw_adname_show(struct device *dev,
+ struct device_attribute *attr, char *buf);
+static ssize_t claw_adname_write(struct device *dev,
+ struct device_attribute *attr,
const char *buf, size_t count);
-static ssize_t claw_apname_show(struct device *dev, struct device_attribute *attr, char *buf);
-static ssize_t claw_apname_write(struct device *dev, struct device_attribute *attr,
+static ssize_t claw_apname_show(struct device *dev,
+ struct device_attribute *attr, char *buf);
+static ssize_t claw_apname_write(struct device *dev,
+ struct device_attribute *attr,
const char *buf, size_t count);
-static ssize_t claw_wbuff_show(struct device *dev, struct device_attribute *attr, char *buf);
-static ssize_t claw_wbuff_write(struct device *dev, struct device_attribute *attr,
+static ssize_t claw_wbuff_show(struct device *dev,
+ struct device_attribute *attr, char *buf);
+static ssize_t claw_wbuff_write(struct device *dev,
+ struct device_attribute *attr,
const char *buf, size_t count);
-static ssize_t claw_rbuff_show(struct device *dev, struct device_attribute *attr, char *buf);
-static ssize_t claw_rbuff_write(struct device *dev, struct device_attribute *attr,
+static ssize_t claw_rbuff_show(struct device *dev,
+ struct device_attribute *attr, char *buf);
+static ssize_t claw_rbuff_write(struct device *dev,
+ struct device_attribute *attr,
const char *buf, size_t count);
static int claw_add_files(struct device *dev);
static void claw_remove_files(struct device *dev);
@@ -298,8 +311,8 @@ claw_probe(struct ccwgroup_device *cgdev)
if (rc) {
probe_error(cgdev);
put_device(&cgdev->dev);
- printk(KERN_WARNING "add_files failed %s %s Exit Line %d \n",
- dev_name(&cgdev->cdev[0]->dev), __func__, __LINE__);
+ dev_err(&cgdev->dev, "Creating the /proc files for a new"
+ " CLAW device failed\n");
CLAW_DBF_TEXT_(2, setup, "probex%d", rc);
return rc;
}
@@ -335,6 +348,8 @@ claw_tx(struct sk_buff *skb, struct net_device *dev)
rc=claw_hw_tx( skb, dev, 1 );
spin_unlock_irqrestore(get_ccwdev_lock(p_ch->cdev), saveflags);
CLAW_DBF_TEXT_(4, trace, "clawtx%d", rc);
+ if (rc)
+ rc = NETDEV_TX_BUSY;
return rc;
} /* end of claw_tx */
@@ -496,7 +511,8 @@ claw_open(struct net_device *dev)
~(DEV_STAT_CHN_END | DEV_STAT_DEV_END)) != 0x00) ||
(((privptr->channel[READ].flag |
privptr->channel[WRITE].flag) & CLAW_TIMER) != 0x00)) {
- printk(KERN_INFO "%s: remote side is not ready\n", dev->name);
+ dev_info(&privptr->channel[READ].cdev->dev,
+ "%s: remote side is not ready\n", dev->name);
CLAW_DBF_TEXT(2, trace, "notrdy");
for ( i = 0; i < 2; i++) {
@@ -582,10 +598,9 @@ claw_irq_handler(struct ccw_device *cdev,
CLAW_DBF_TEXT(4, trace, "clawirq");
/* Bypass all 'unsolicited interrupts' */
if (!cdev->dev.driver_data) {
- printk(KERN_WARNING "claw: unsolicited interrupt for device:"
- "%s received c-%02x d-%02x\n",
- dev_name(&cdev->dev), irb->scsw.cmd.cstat,
- irb->scsw.cmd.dstat);
+ dev_warn(&cdev->dev, "An uninitialized CLAW device received an"
+ " IRQ, c-%02x d-%02x\n",
+ irb->scsw.cmd.cstat, irb->scsw.cmd.dstat);
CLAW_DBF_TEXT(2, trace, "badirq");
return;
}
@@ -597,8 +612,7 @@ claw_irq_handler(struct ccw_device *cdev,
else if (privptr->channel[WRITE].cdev == cdev)
p_ch = &privptr->channel[WRITE];
else {
- printk(KERN_WARNING "claw: Can't determine channel for "
- "interrupt, device %s\n", dev_name(&cdev->dev));
+ dev_warn(&cdev->dev, "The device is not a CLAW device\n");
CLAW_DBF_TEXT(2, trace, "badchan");
return;
}
@@ -612,7 +626,8 @@ claw_irq_handler(struct ccw_device *cdev,
/* Check for good subchannel return code, otherwise info message */
if (irb->scsw.cmd.cstat && !(irb->scsw.cmd.cstat & SCHN_STAT_PCI)) {
- printk(KERN_INFO "%s: subchannel check for device: %04x -"
+ dev_info(&cdev->dev,
+ "%s: subchannel check for device: %04x -"
" Sch Stat %02x Dev Stat %02x CPA - %04x\n",
dev->name, p_ch->devno,
irb->scsw.cmd.cstat, irb->scsw.cmd.dstat,
@@ -651,7 +666,7 @@ claw_irq_handler(struct ccw_device *cdev,
wake_up(&p_ch->wait); /* wake claw_open (READ)*/
} else if (p_ch->flag == CLAW_WRITE) {
p_ch->claw_state = CLAW_START_WRITE;
- /* send SYSTEM_VALIDATE */
+ /* send SYSTEM_VALIDATE */
claw_strt_read(dev, LOCK_NO);
claw_send_control(dev,
SYSTEM_VALIDATE_REQUEST,
@@ -659,10 +674,9 @@ claw_irq_handler(struct ccw_device *cdev,
p_env->host_name,
p_env->adapter_name);
} else {
- printk(KERN_WARNING "claw: unsolicited "
- "interrupt for device:"
- "%s received c-%02x d-%02x\n",
- dev_name(&cdev->dev),
+ dev_warn(&cdev->dev, "The CLAW device received"
+ " an unexpected IRQ, "
+ "c-%02x d-%02x\n",
irb->scsw.cmd.cstat,
irb->scsw.cmd.dstat);
return;
@@ -677,8 +691,8 @@ claw_irq_handler(struct ccw_device *cdev,
(p_ch->irb->ecw[0] & 0x40) == 0x40 ||
(p_ch->irb->ecw[0]) == 0) {
privptr->stats.rx_errors++;
- printk(KERN_INFO "%s: Restart is "
- "required after remote "
+ dev_info(&cdev->dev,
+ "%s: Restart is required after remote "
"side recovers \n",
dev->name);
}
@@ -713,11 +727,13 @@ claw_irq_handler(struct ccw_device *cdev,
return;
case CLAW_START_WRITE:
if (p_ch->irb->scsw.cmd.dstat & DEV_STAT_UNIT_CHECK) {
- printk(KERN_INFO "%s: Unit Check Occured in "
+ dev_info(&cdev->dev,
+ "%s: Unit Check Occured in "
"write channel\n", dev->name);
clear_bit(0, (void *)&p_ch->IO_active);
if (p_ch->irb->ecw[0] & 0x80) {
- printk(KERN_INFO "%s: Resetting Event "
+ dev_info(&cdev->dev,
+ "%s: Resetting Event "
"occurred:\n", dev->name);
init_timer(&p_ch->timer);
p_ch->timer.function =
@@ -725,7 +741,8 @@ claw_irq_handler(struct ccw_device *cdev,
p_ch->timer.data = (unsigned long)p_ch;
p_ch->timer.expires = jiffies + 10*HZ;
add_timer(&p_ch->timer);
- printk(KERN_INFO "%s: write connection "
+ dev_info(&cdev->dev,
+ "%s: write connection "
"restarting\n", dev->name);
}
CLAW_DBF_TEXT(4, trace, "rstrtwrt");
@@ -733,9 +750,10 @@ claw_irq_handler(struct ccw_device *cdev,
}
if (p_ch->irb->scsw.cmd.dstat & DEV_STAT_UNIT_EXCEP) {
clear_bit(0, (void *)&p_ch->IO_active);
- printk(KERN_INFO "%s: Unit Exception "
- "Occured in write channel\n",
- dev->name);
+ dev_info(&cdev->dev,
+ "%s: Unit Exception "
+ "occurred in write channel\n",
+ dev->name);
}
if (!((p_ch->irb->scsw.cmd.stctl & SCSW_STCTL_SEC_STATUS) ||
(p_ch->irb->scsw.cmd.stctl == SCSW_STCTL_STATUS_PEND) ||
@@ -757,8 +775,9 @@ claw_irq_handler(struct ccw_device *cdev,
CLAW_DBF_TEXT(4, trace, "StWtExit");
return;
default:
- printk(KERN_WARNING "%s: wrong selection code - irq "
- "state=%d\n", dev->name, p_ch->claw_state);
+ dev_warn(&cdev->dev,
+ "The CLAW device for %s received an unexpected IRQ\n",
+ dev->name);
CLAW_DBF_TEXT(2, trace, "badIRQ");
return;
}
@@ -910,8 +929,10 @@ claw_release(struct net_device *dev)
if (((privptr->channel[READ].last_dstat |
privptr->channel[WRITE].last_dstat) &
~(DEV_STAT_CHN_END | DEV_STAT_DEV_END)) != 0x00) {
- printk(KERN_WARNING "%s: channel problems during close - "
- "read: %02x - write: %02x\n",
+ dev_warn(&privptr->channel[READ].cdev->dev,
+ "Deactivating %s completed with incorrect"
+ " subchannel status "
+ "(read %02x, write %02x)\n",
dev->name,
privptr->channel[READ].last_dstat,
privptr->channel[WRITE].last_dstat);
@@ -1012,7 +1033,7 @@ static int
pages_to_order_of_mag(int num_of_pages)
{
int order_of_mag=1; /* assume 2 pages */
- int nump=2;
+ int nump;
CLAW_DBF_TEXT_(5, trace, "pages%d", num_of_pages);
if (num_of_pages == 1) {return 0; } /* magnitude of 0 = 1 page */
@@ -1076,8 +1097,8 @@ add_claw_reads(struct net_device *dev, struct ccwbk* p_first,
}
if ( privptr-> p_read_active_first ==NULL ) {
- privptr-> p_read_active_first= p_first; /* set new first */
- privptr-> p_read_active_last = p_last; /* set new last */
+ privptr->p_read_active_first = p_first; /* set new first */
+ privptr->p_read_active_last = p_last; /* set new last */
}
else {
@@ -1113,7 +1134,7 @@ add_claw_reads(struct net_device *dev, struct ccwbk* p_first,
privptr->p_read_active_last->r_TIC_2.cda=
(__u32)__pa(&p_first->read);
}
- /* chain in new set of blocks */
+ /* chain in new set of blocks */
privptr->p_read_active_last->next = p_first;
privptr->p_read_active_last=p_last;
} /* end of if ( privptr-> p_read_active_first ==NULL) */
@@ -1135,21 +1156,18 @@ ccw_check_return_code(struct ccw_device *cdev, int return_code)
case -EBUSY: /* BUSY is a transient state no action needed */
break;
case -ENODEV:
- printk(KERN_EMERG "%s: Missing device called "
- "for IO ENODEV\n", dev_name(&cdev->dev));
- break;
- case -EIO:
- printk(KERN_EMERG "%s: Status pending... EIO \n",
- dev_name(&cdev->dev));
+ dev_err(&cdev->dev, "The remote channel adapter is not"
+ " available\n");
break;
case -EINVAL:
- printk(KERN_EMERG "%s: Invalid Dev State EINVAL \n",
- dev_name(&cdev->dev));
+ dev_err(&cdev->dev,
+ "The status of the remote channel adapter"
+ " is not valid\n");
break;
default:
- printk(KERN_EMERG "%s: Unknown error in "
- "Do_IO %d\n", dev_name(&cdev->dev),
- return_code);
+ dev_err(&cdev->dev, "The common device layer"
+ " returned error code %d\n",
+ return_code);
}
}
CLAW_DBF_TEXT(4, trace, "ccwret");
@@ -1163,42 +1181,37 @@ static void
ccw_check_unit_check(struct chbk * p_ch, unsigned char sense )
{
struct net_device *ndev = p_ch->ndev;
+ struct device *dev = &p_ch->cdev->dev;
CLAW_DBF_TEXT(4, trace, "unitchek");
- printk(KERN_INFO "%s: Unit Check with sense byte:0x%04x\n",
- ndev->name, sense);
-
- if (sense & 0x40) {
- if (sense & 0x01) {
- printk(KERN_WARNING "%s: Interface disconnect or "
- "Selective reset "
- "occurred (remote side)\n", ndev->name);
- }
- else {
- printk(KERN_WARNING "%s: System reset occured"
- " (remote side)\n", ndev->name);
- }
- }
- else if (sense & 0x20) {
- if (sense & 0x04) {
- printk(KERN_WARNING "%s: Data-streaming "
- "timeout)\n", ndev->name);
- }
- else {
- printk(KERN_WARNING "%s: Data-transfer parity"
- " error\n", ndev->name);
- }
- }
- else if (sense & 0x10) {
- if (sense & 0x20) {
- printk(KERN_WARNING "%s: Hardware malfunction "
- "(remote side)\n", ndev->name);
- }
- else {
- printk(KERN_WARNING "%s: read-data parity error "
- "(remote side)\n", ndev->name);
- }
- }
+ dev_warn(dev, "The communication peer of %s disconnected\n",
+ ndev->name);
+
+ if (sense & 0x40) {
+ if (sense & 0x01) {
+ dev_warn(dev, "The remote channel adapter for"
+ " %s has been reset\n",
+ ndev->name);
+ }
+ } else if (sense & 0x20) {
+ if (sense & 0x04) {
+ dev_warn(dev, "A data streaming timeout occurred"
+ " for %s\n",
+ ndev->name);
+ } else if (sense & 0x10) {
+ dev_warn(dev, "The remote channel adapter for %s"
+ " is faulty\n",
+ ndev->name);
+ } else {
+ dev_warn(dev, "A data transfer parity error occurred"
+ " for %s\n",
+ ndev->name);
+ }
+ } else if (sense & 0x10) {
+ dev_warn(dev, "A read data parity error occurred"
+ " for %s\n",
+ ndev->name);
+ }
} /* end of ccw_check_unit_check */
@@ -1235,7 +1248,7 @@ find_link(struct net_device *dev, char *host_name, char *ws_name )
break;
}
- return 0;
+ return rc;
} /* end of find_link */
/*-------------------------------------------------------------------*
@@ -1347,7 +1360,10 @@ claw_hw_tx(struct sk_buff *skb, struct net_device *dev, long linkid)
privptr->p_write_free_chain=p_this_ccw->next;
p_this_ccw->next=NULL;
--privptr->write_free_count; /* -1 */
- bytesInThisBuffer=len_of_data;
+ if (len_of_data >= privptr->p_env->write_size)
+ bytesInThisBuffer = privptr->p_env->write_size;
+ else
+ bytesInThisBuffer = len_of_data;
memcpy( p_this_ccw->p_buffer,pDataAddress, bytesInThisBuffer);
len_of_data-=bytesInThisBuffer;
pDataAddress+=(unsigned long)bytesInThisBuffer;
@@ -1375,7 +1391,7 @@ claw_hw_tx(struct sk_buff *skb, struct net_device *dev, long linkid)
*/
if (p_first_ccw!=NULL) {
- /* setup ending ccw sequence for this segment */
+ /* setup ending ccw sequence for this segment */
pEnd=privptr->p_end_ccw;
if (pEnd->write1) {
pEnd->write1=0x00; /* second end ccw is now active */
@@ -1697,10 +1713,11 @@ init_ccw_bk(struct net_device *dev)
p_buf-> w_TIC_1.flags = 0;
p_buf-> w_TIC_1.count = 0;
- if (((unsigned long)p_buff+privptr->p_env->write_size) >=
+ if (((unsigned long)p_buff +
+ privptr->p_env->write_size) >=
((unsigned long)(p_buff+2*
- (privptr->p_env->write_size) -1) & PAGE_MASK)) {
- p_buff= p_buff+privptr->p_env->write_size;
+ (privptr->p_env->write_size) - 1) & PAGE_MASK)) {
+ p_buff = p_buff+privptr->p_env->write_size;
}
}
}
@@ -1840,15 +1857,16 @@ init_ccw_bk(struct net_device *dev)
p_buf->header.opcode=0xff;
p_buf->header.flag=CLAW_PENDING;
- if (((unsigned long)p_buff+privptr->p_env->read_size) >=
- ((unsigned long)(p_buff+2*(privptr->p_env->read_size) -1)
- & PAGE_MASK) ) {
+ if (((unsigned long)p_buff+privptr->p_env->read_size) >=
+ ((unsigned long)(p_buff+2*(privptr->p_env->read_size)
+ -1)
+ & PAGE_MASK)) {
p_buff= p_buff+privptr->p_env->read_size;
}
else {
p_buff=
(void *)((unsigned long)
- (p_buff+2*(privptr->p_env->read_size) -1)
+ (p_buff+2*(privptr->p_env->read_size)-1)
& PAGE_MASK) ;
}
} /* for read_buffers */
@@ -1856,24 +1874,28 @@ init_ccw_bk(struct net_device *dev)
else { /* read Size >= PAGE_SIZE */
for (i=0 ; i< privptr->p_env->read_buffers ; i++) {
p_buff = (void *)__get_free_pages(__GFP_DMA,
- (int)pages_to_order_of_mag(privptr->p_buff_pages_perread) );
+ (int)pages_to_order_of_mag(
+ privptr->p_buff_pages_perread));
if (p_buff==NULL) {
free_pages((unsigned long)privptr->p_buff_ccw,
- (int)pages_to_order_of_mag(privptr->p_buff_ccw_num));
+ (int)pages_to_order_of_mag(privptr->
+ p_buff_ccw_num));
/* free the write pages */
p_buf=privptr->p_buff_write;
while (p_buf!=NULL) {
- free_pages((unsigned long)p_buf->p_buffer,
- (int)pages_to_order_of_mag(
- privptr->p_buff_pages_perwrite ));
+ free_pages(
+ (unsigned long)p_buf->p_buffer,
+ (int)pages_to_order_of_mag(
+ privptr->p_buff_pages_perwrite));
p_buf=p_buf->next;
}
/* free any read pages already alloc */
p_buf=privptr->p_buff_read;
while (p_buf!=NULL) {
- free_pages((unsigned long)p_buf->p_buffer,
- (int)pages_to_order_of_mag(
- privptr->p_buff_pages_perread ));
+ free_pages(
+ (unsigned long)p_buf->p_buffer,
+ (int)pages_to_order_of_mag(
+ privptr->p_buff_pages_perread));
p_buf=p_buf->next;
}
privptr->p_buff_ccw=NULL;
@@ -2003,7 +2025,7 @@ claw_process_control( struct net_device *dev, struct ccwbk * p_ccw)
tdev = &privptr->channel[READ].cdev->dev;
memcpy( &temp_host_name, p_env->host_name, 8);
memcpy( &temp_ws_name, p_env->adapter_name , 8);
- printk(KERN_INFO "%s: CLAW device %.8s: "
+ dev_info(tdev, "%s: CLAW device %.8s: "
"Received Control Packet\n",
dev->name, temp_ws_name);
if (privptr->release_pend==1) {
@@ -2022,32 +2044,30 @@ claw_process_control( struct net_device *dev, struct ccwbk * p_ccw)
if (p_ctlbk->version != CLAW_VERSION_ID) {
claw_snd_sys_validate_rsp(dev, p_ctlbk,
CLAW_RC_WRONG_VERSION);
- printk("%s: %d is wrong version id. "
- "Expected %d\n",
- dev->name, p_ctlbk->version,
- CLAW_VERSION_ID);
+ dev_warn(tdev, "The communication peer of %s"
+ " uses an incorrect API version %d\n",
+ dev->name, p_ctlbk->version);
}
p_sysval = (struct sysval *)&(p_ctlbk->data);
- printk("%s: Recv Sys Validate Request: "
- "Vers=%d,link_id=%d,Corr=%d,WS name=%."
- "8s,Host name=%.8s\n",
- dev->name, p_ctlbk->version,
- p_ctlbk->linkid,
- p_ctlbk->correlator,
- p_sysval->WS_name,
- p_sysval->host_name);
+ dev_info(tdev, "%s: Recv Sys Validate Request: "
+ "Vers=%d,link_id=%d,Corr=%d,WS name=%.8s,"
+ "Host name=%.8s\n",
+ dev->name, p_ctlbk->version,
+ p_ctlbk->linkid,
+ p_ctlbk->correlator,
+ p_sysval->WS_name,
+ p_sysval->host_name);
if (memcmp(temp_host_name, p_sysval->host_name, 8)) {
claw_snd_sys_validate_rsp(dev, p_ctlbk,
CLAW_RC_NAME_MISMATCH);
CLAW_DBF_TEXT(2, setup, "HSTBAD");
CLAW_DBF_TEXT_(2, setup, "%s", p_sysval->host_name);
CLAW_DBF_TEXT_(2, setup, "%s", temp_host_name);
- printk(KERN_INFO "%s: Host name mismatch\n",
- dev->name);
- printk(KERN_INFO "%s: Received :%s: "
- "expected :%s: \n",
- dev->name,
+ dev_warn(tdev,
+ "Host name %s for %s does not match the"
+ " remote adapter name %s\n",
p_sysval->host_name,
+ dev->name,
temp_host_name);
}
if (memcmp(temp_ws_name, p_sysval->WS_name, 8)) {
@@ -2056,35 +2076,38 @@ claw_process_control( struct net_device *dev, struct ccwbk * p_ccw)
CLAW_DBF_TEXT(2, setup, "WSNBAD");
CLAW_DBF_TEXT_(2, setup, "%s", p_sysval->WS_name);
CLAW_DBF_TEXT_(2, setup, "%s", temp_ws_name);
- printk(KERN_INFO "%s: WS name mismatch\n",
- dev->name);
- printk(KERN_INFO "%s: Received :%s: "
- "expected :%s: \n",
- dev->name,
- p_sysval->WS_name,
- temp_ws_name);
+ dev_warn(tdev, "Adapter name %s for %s does not match"
+ " the remote host name %s\n",
+ p_sysval->WS_name,
+ dev->name,
+ temp_ws_name);
}
if ((p_sysval->write_frame_size < p_env->write_size) &&
(p_env->packing == 0)) {
claw_snd_sys_validate_rsp(dev, p_ctlbk,
CLAW_RC_HOST_RCV_TOO_SMALL);
- printk(KERN_INFO "%s: host write size is too "
- "small\n", dev->name);
+ dev_warn(tdev,
+ "The local write buffer is smaller than the"
+ " remote read buffer\n");
CLAW_DBF_TEXT(2, setup, "wrtszbad");
}
if ((p_sysval->read_frame_size < p_env->read_size) &&
(p_env->packing == 0)) {
claw_snd_sys_validate_rsp(dev, p_ctlbk,
CLAW_RC_HOST_RCV_TOO_SMALL);
- printk(KERN_INFO "%s: host read size is too "
- "small\n", dev->name);
+ dev_warn(tdev,
+ "The local read buffer is smaller than the"
+ " remote write buffer\n");
CLAW_DBF_TEXT(2, setup, "rdsizbad");
}
claw_snd_sys_validate_rsp(dev, p_ctlbk, 0);
- printk(KERN_INFO "%s: CLAW device %.8s: System validate "
- "completed.\n", dev->name, temp_ws_name);
- printk("%s: sys Validate Rsize:%d Wsize:%d\n", dev->name,
- p_sysval->read_frame_size, p_sysval->write_frame_size);
+ dev_info(tdev,
+ "CLAW device %.8s: System validate"
+ " completed.\n", temp_ws_name);
+ dev_info(tdev,
+ "%s: sys Validate Rsize:%d Wsize:%d\n",
+ dev->name, p_sysval->read_frame_size,
+ p_sysval->write_frame_size);
privptr->system_validate_comp = 1;
if (strncmp(p_env->api_type, WS_APPL_NAME_PACKED, 6) == 0)
p_env->packing = PACKING_ASK;
@@ -2092,8 +2115,10 @@ claw_process_control( struct net_device *dev, struct ccwbk * p_ccw)
break;
case SYSTEM_VALIDATE_RESPONSE:
p_sysval = (struct sysval *)&(p_ctlbk->data);
- printk("%s: Recv Sys Validate Resp: Vers=%d,Corr=%d,RC=%d,"
- "WS name=%.8s,Host name=%.8s\n",
+ dev_info(tdev,
+ "Settings for %s validated (version=%d, "
+ "remote device=%d, rc=%d, adapter name=%.8s, "
+ "host name=%.8s)\n",
dev->name,
p_ctlbk->version,
p_ctlbk->correlator,
@@ -2102,41 +2127,39 @@ claw_process_control( struct net_device *dev, struct ccwbk * p_ccw)
p_sysval->host_name);
switch (p_ctlbk->rc) {
case 0:
- printk(KERN_INFO "%s: CLAW device "
- "%.8s: System validate "
- "completed.\n",
- dev->name, temp_ws_name);
+ dev_info(tdev, "%s: CLAW device "
+ "%.8s: System validate completed.\n",
+ dev->name, temp_ws_name);
if (privptr->system_validate_comp == 0)
claw_strt_conn_req(dev);
privptr->system_validate_comp = 1;
break;
case CLAW_RC_NAME_MISMATCH:
- printk(KERN_INFO "%s: Sys Validate "
- "Resp : Host, WS name is "
- "mismatch\n",
- dev->name);
+ dev_warn(tdev, "Validating %s failed because of"
+ " a host or adapter name mismatch\n",
+ dev->name);
break;
case CLAW_RC_WRONG_VERSION:
- printk(KERN_INFO "%s: Sys Validate "
- "Resp : Wrong version\n",
+ dev_warn(tdev, "Validating %s failed because of a"
+ " version conflict\n",
dev->name);
break;
case CLAW_RC_HOST_RCV_TOO_SMALL:
- printk(KERN_INFO "%s: Sys Validate "
- "Resp : bad frame size\n",
+ dev_warn(tdev, "Validating %s failed because of a"
+ " frame size conflict\n",
dev->name);
break;
default:
- printk(KERN_INFO "%s: Sys Validate "
- "error code=%d \n",
- dev->name, p_ctlbk->rc);
+ dev_warn(tdev, "The communication peer of %s rejected"
+ " the connection\n",
+ dev->name);
break;
}
break;
case CONNECTION_REQUEST:
p_connect = (struct conncmd *)&(p_ctlbk->data);
- printk(KERN_INFO "%s: Recv Conn Req: Vers=%d,link_id=%d,"
+ dev_info(tdev, "%s: Recv Conn Req: Vers=%d,link_id=%d,"
"Corr=%d,HOST appl=%.8s,WS appl=%.8s\n",
dev->name,
p_ctlbk->version,
@@ -2146,21 +2169,21 @@ claw_process_control( struct net_device *dev, struct ccwbk * p_ccw)
p_connect->WS_name);
if (privptr->active_link_ID != 0) {
claw_snd_disc(dev, p_ctlbk);
- printk(KERN_INFO "%s: Conn Req error : "
- "already logical link is active \n",
+ dev_info(tdev, "%s rejected a connection request"
+ " because it is already active\n",
dev->name);
}
if (p_ctlbk->linkid != 1) {
claw_snd_disc(dev, p_ctlbk);
- printk(KERN_INFO "%s: Conn Req error : "
- "req logical link id is not 1\n",
+ dev_info(tdev, "%s rejected a request to open multiple"
+ " connections\n",
dev->name);
}
rc = find_link(dev, p_connect->host_name, p_connect->WS_name);
if (rc != 0) {
claw_snd_disc(dev, p_ctlbk);
- printk(KERN_INFO "%s: Conn Resp error: "
- "req appl name does not match\n",
+ dev_info(tdev, "%s rejected a connection request"
+ " because of a type mismatch\n",
dev->name);
}
claw_send_control(dev,
@@ -2172,7 +2195,7 @@ claw_process_control( struct net_device *dev, struct ccwbk * p_ccw)
p_env->packing = PACK_SEND;
claw_snd_conn_req(dev, 0);
}
- printk(KERN_INFO "%s: CLAW device %.8s: Connection "
+ dev_info(tdev, "%s: CLAW device %.8s: Connection "
"completed link_id=%d.\n",
dev->name, temp_ws_name,
p_ctlbk->linkid);
@@ -2182,7 +2205,7 @@ claw_process_control( struct net_device *dev, struct ccwbk * p_ccw)
break;
case CONNECTION_RESPONSE:
p_connect = (struct conncmd *)&(p_ctlbk->data);
- printk(KERN_INFO "%s: Revc Conn Resp: Vers=%d,link_id=%d,"
+ dev_info(tdev, "%s: Recv Conn Resp: Vers=%d,link_id=%d,"
"Corr=%d,RC=%d,Host appl=%.8s, WS appl=%.8s\n",
dev->name,
p_ctlbk->version,
@@ -2193,16 +2216,18 @@ claw_process_control( struct net_device *dev, struct ccwbk * p_ccw)
p_connect->WS_name);
if (p_ctlbk->rc != 0) {
- printk(KERN_INFO "%s: Conn Resp error: rc=%d \n",
- dev->name, p_ctlbk->rc);
+ dev_warn(tdev, "The communication peer of %s rejected"
+ " a connection request\n",
+ dev->name);
return 1;
}
rc = find_link(dev,
p_connect->host_name, p_connect->WS_name);
if (rc != 0) {
claw_snd_disc(dev, p_ctlbk);
- printk(KERN_INFO "%s: Conn Resp error: "
- "req appl name does not match\n",
+ dev_warn(tdev, "The communication peer of %s"
+ " rejected a connection "
+ "request because of a type mismatch\n",
dev->name);
}
/* should be until CONNECTION_CONFIRM */
@@ -2210,7 +2235,8 @@ claw_process_control( struct net_device *dev, struct ccwbk * p_ccw)
break;
case CONNECTION_CONFIRM:
p_connect = (struct conncmd *)&(p_ctlbk->data);
- printk(KERN_INFO "%s: Recv Conn Confirm:Vers=%d,link_id=%d,"
+ dev_info(tdev,
+ "%s: Recv Conn Confirm:Vers=%d,link_id=%d,"
"Corr=%d,Host appl=%.8s,WS appl=%.8s\n",
dev->name,
p_ctlbk->version,
@@ -2221,21 +2247,21 @@ claw_process_control( struct net_device *dev, struct ccwbk * p_ccw)
if (p_ctlbk->linkid == -(privptr->active_link_ID)) {
privptr->active_link_ID = p_ctlbk->linkid;
if (p_env->packing > PACKING_ASK) {
- printk(KERN_INFO "%s: Confirmed Now packing\n",
- dev->name);
+ dev_info(tdev,
+ "%s: Confirmed Now packing\n", dev->name);
p_env->packing = DO_PACKED;
}
p_ch = &privptr->channel[WRITE];
wake_up(&p_ch->wait);
} else {
- printk(KERN_INFO "%s: Conn confirm: "
- "unexpected linkid=%d \n",
+ dev_warn(tdev, "Activating %s failed because of"
+ " an incorrect link ID=%d\n",
dev->name, p_ctlbk->linkid);
claw_snd_disc(dev, p_ctlbk);
}
break;
case DISCONNECT:
- printk(KERN_INFO "%s: Disconnect: "
+ dev_info(tdev, "%s: Disconnect: "
"Vers=%d,link_id=%d,Corr=%d\n",
dev->name, p_ctlbk->version,
p_ctlbk->linkid, p_ctlbk->correlator);
@@ -2247,12 +2273,13 @@ claw_process_control( struct net_device *dev, struct ccwbk * p_ccw)
privptr->active_link_ID = 0;
break;
case CLAW_ERROR:
- printk(KERN_INFO "%s: CLAW ERROR detected\n",
+ dev_warn(tdev, "The communication peer of %s failed\n",
dev->name);
break;
default:
- printk(KERN_INFO "%s: Unexpected command code=%d \n",
- dev->name, p_ctlbk->command);
+ dev_warn(tdev, "The communication peer of %s sent"
+ " an unknown command code\n",
+ dev->name);
break;
}
@@ -2294,12 +2321,14 @@ claw_send_control(struct net_device *dev, __u8 type, __u8 link,
memcpy(&p_sysval->host_name, local_name, 8);
memcpy(&p_sysval->WS_name, remote_name, 8);
if (privptr->p_env->packing > 0) {
- p_sysval->read_frame_size=DEF_PACK_BUFSIZE;
- p_sysval->write_frame_size=DEF_PACK_BUFSIZE;
+ p_sysval->read_frame_size = DEF_PACK_BUFSIZE;
+ p_sysval->write_frame_size = DEF_PACK_BUFSIZE;
} else {
/* how big is the biggest group of packets */
- p_sysval->read_frame_size=privptr->p_env->read_size;
- p_sysval->write_frame_size=privptr->p_env->write_size;
+ p_sysval->read_frame_size =
+ privptr->p_env->read_size;
+ p_sysval->write_frame_size =
+ privptr->p_env->write_size;
}
memset(&p_sysval->reserved, 0x00, 4);
break;
@@ -2485,7 +2514,6 @@ unpack_read(struct net_device *dev )
p_dev = &privptr->channel[READ].cdev->dev;
p_env = privptr->p_env;
p_this_ccw=privptr->p_read_active_first;
- i=0;
while (p_this_ccw!=NULL && p_this_ccw->header.flag!=CLAW_PENDING) {
pack_off = 0;
p = 0;
@@ -2511,8 +2539,10 @@ unpack_read(struct net_device *dev )
mtc_this_frm=1;
if (p_this_ccw->header.length!=
privptr->p_env->read_size ) {
- printk(KERN_INFO " %s: Invalid frame detected "
- "length is %02x\n" ,
+ dev_warn(p_dev,
+ "The communication peer of %s"
+ " sent a faulty"
+ " frame of length %02x\n",
dev->name, p_this_ccw->header.length);
}
}
@@ -2544,7 +2574,7 @@ unpack_next:
goto NextFrame;
p_packd = p_this_ccw->p_buffer+pack_off;
p_packh = (struct clawph *) p_packd;
- if ((p_packh->len == 0) || /* all done with this frame? */
+ if ((p_packh->len == 0) || /* done with this frame? */
(p_packh->flag != 0))
goto NextFrame;
bytes_to_mov = p_packh->len;
@@ -2594,9 +2624,9 @@ unpack_next:
netif_rx(skb);
}
else {
+ dev_info(p_dev, "Allocating a buffer for"
+ " incoming data failed\n");
privptr->stats.rx_dropped++;
- printk(KERN_WARNING "%s: %s() low on memory\n",
- dev->name,__func__);
}
privptr->mtc_offset=0;
privptr->mtc_logical_link=-1;
@@ -2720,8 +2750,8 @@ claw_strt_out_IO( struct net_device *dev )
if (test_and_set_bit(0, (void *)&p_ch->IO_active) == 0) {
parm = (unsigned long) p_ch;
CLAW_DBF_TEXT(2, trace, "StWrtIO");
- rc = ccw_device_start (p_ch->cdev,&p_first_ccw->write, parm,
- 0xff, 0);
+ rc = ccw_device_start(p_ch->cdev, &p_first_ccw->write, parm,
+ 0xff, 0);
if (rc != 0) {
ccw_check_return_code(p_ch->cdev, rc);
}
@@ -2816,22 +2846,26 @@ claw_free_netdevice(struct net_device * dev, int free_dev)
* Initialize everything of the net device except the name and the
* channel structs.
*/
+static const struct net_device_ops claw_netdev_ops = {
+ .ndo_open = claw_open,
+ .ndo_stop = claw_release,
+ .ndo_get_stats = claw_stats,
+ .ndo_start_xmit = claw_tx,
+ .ndo_change_mtu = claw_change_mtu,
+};
+
static void
claw_init_netdevice(struct net_device * dev)
{
CLAW_DBF_TEXT(2, setup, "init_dev");
CLAW_DBF_TEXT_(2, setup, "%s", dev->name);
dev->mtu = CLAW_DEFAULT_MTU_SIZE;
- dev->hard_start_xmit = claw_tx;
- dev->open = claw_open;
- dev->stop = claw_release;
- dev->get_stats = claw_stats;
- dev->change_mtu = claw_change_mtu;
dev->hard_header_len = 0;
dev->addr_len = 0;
dev->type = ARPHRD_SLIP;
dev->tx_queue_len = 1300;
dev->flags = IFF_POINTOPOINT | IFF_NOARP;
+ dev->netdev_ops = &claw_netdev_ops;
CLAW_DBF_TEXT(2, setup, "initok");
return;
}
@@ -2880,8 +2914,8 @@ claw_new_device(struct ccwgroup_device *cgdev)
int ret;
struct ccw_dev_id dev_id;
- printk(KERN_INFO "claw: add for %s\n",
- dev_name(&cgdev->cdev[READ]->dev));
+ dev_info(&cgdev->dev, "add for %s\n",
+ dev_name(&cgdev->cdev[READ]->dev));
CLAW_DBF_TEXT(2, setup, "new_dev");
privptr = cgdev->dev.driver_data;
cgdev->cdev[READ]->dev.driver_data = privptr;
@@ -2897,29 +2931,28 @@ claw_new_device(struct ccwgroup_device *cgdev)
if (ret == 0)
ret = add_channel(cgdev->cdev[1],1,privptr);
if (ret != 0) {
- printk(KERN_WARNING
- "add channel failed with ret = %d\n", ret);
+ dev_warn(&cgdev->dev, "Creating a CLAW group device"
+ " failed with error code %d\n", ret);
goto out;
}
ret = ccw_device_set_online(cgdev->cdev[READ]);
if (ret != 0) {
- printk(KERN_WARNING
- "claw: ccw_device_set_online %s READ failed "
- "with ret = %d\n", dev_name(&cgdev->cdev[READ]->dev),
- ret);
+ dev_warn(&cgdev->dev,
+ "Setting the read subchannel online"
+ " failed with error code %d\n", ret);
goto out;
}
ret = ccw_device_set_online(cgdev->cdev[WRITE]);
if (ret != 0) {
- printk(KERN_WARNING
- "claw: ccw_device_set_online %s WRITE failed "
- "with ret = %d\n", dev_name(&cgdev->cdev[WRITE]->dev),
- ret);
+ dev_warn(&cgdev->dev,
+ "Setting the write subchannel online "
+ "failed with error code %d\n", ret);
goto out;
}
dev = alloc_netdev(0,"claw%d",claw_init_netdevice);
if (!dev) {
- printk(KERN_WARNING "%s:alloc_netdev failed\n",__func__);
+ dev_warn(&cgdev->dev,
+ "Activating the CLAW device failed\n");
goto out;
}
dev->ml_priv = privptr;
@@ -2947,13 +2980,13 @@ claw_new_device(struct ccwgroup_device *cgdev)
privptr->channel[WRITE].ndev = dev;
privptr->p_env->ndev = dev;
- printk(KERN_INFO "%s:readsize=%d writesize=%d "
+ dev_info(&cgdev->dev, "%s:readsize=%d writesize=%d "
"readbuffer=%d writebuffer=%d read=0x%04x write=0x%04x\n",
dev->name, p_env->read_size,
p_env->write_size, p_env->read_buffers,
p_env->write_buffers, p_env->devno[READ],
p_env->devno[WRITE]);
- printk(KERN_INFO "%s:host_name:%.8s, adapter_name "
+ dev_info(&cgdev->dev, "%s:host_name:%.8s, adapter_name "
":%.8s api_type: %.8s\n",
dev->name, p_env->host_name,
p_env->adapter_name , p_env->api_type);
@@ -2997,8 +3030,8 @@ claw_shutdown_device(struct ccwgroup_device *cgdev)
ndev = priv->channel[READ].ndev;
if (ndev) {
/* Close the device */
- printk(KERN_INFO
- "%s: shuting down \n",ndev->name);
+ dev_info(&cgdev->dev, "%s: shutting down \n",
+ ndev->name);
if (ndev->flags & IFF_RUNNING)
ret = claw_release(ndev);
ndev->flags &=~IFF_RUNNING;
@@ -3023,8 +3056,7 @@ claw_remove_device(struct ccwgroup_device *cgdev)
CLAW_DBF_TEXT_(2, setup, "%s", dev_name(&cgdev->dev));
priv = cgdev->dev.driver_data;
BUG_ON(!priv);
- printk(KERN_INFO "claw: %s() called %s will be removed.\n",
- __func__, dev_name(&cgdev->cdev[0]->dev));
+ dev_info(&cgdev->dev, " will be removed.\n");
if (cgdev->state == CCWGROUP_ONLINE)
claw_shutdown_device(cgdev);
claw_remove_files(&cgdev->dev);
@@ -3063,7 +3095,8 @@ claw_hname_show(struct device *dev, struct device_attribute *attr, char *buf)
}
static ssize_t
-claw_hname_write(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+claw_hname_write(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
{
struct claw_privbk *priv;
struct claw_env * p_env;
@@ -3100,7 +3133,8 @@ claw_adname_show(struct device *dev, struct device_attribute *attr, char *buf)
}
static ssize_t
-claw_adname_write(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+claw_adname_write(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
{
struct claw_privbk *priv;
struct claw_env * p_env;
@@ -3138,7 +3172,8 @@ claw_apname_show(struct device *dev, struct device_attribute *attr, char *buf)
}
static ssize_t
-claw_apname_write(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+claw_apname_write(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
{
struct claw_privbk *priv;
struct claw_env * p_env;
@@ -3185,7 +3220,8 @@ claw_wbuff_show(struct device *dev, struct device_attribute *attr, char *buf)
}
static ssize_t
-claw_wbuff_write(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+claw_wbuff_write(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
{
struct claw_privbk *priv;
struct claw_env * p_env;
@@ -3226,7 +3262,8 @@ claw_rbuff_show(struct device *dev, struct device_attribute *attr, char *buf)
}
static ssize_t
-claw_rbuff_write(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+claw_rbuff_write(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
{
struct claw_privbk *priv;
struct claw_env *p_env;
@@ -3289,7 +3326,7 @@ claw_cleanup(void)
{
unregister_cu3088_discipline(&claw_group_driver);
claw_unregister_debug_facility();
- printk(KERN_INFO "claw: Driver unloaded\n");
+ pr_info("Driver unloaded\n");
}
@@ -3303,12 +3340,12 @@ static int __init
claw_init(void)
{
int ret = 0;
- printk(KERN_INFO "claw: starting driver\n");
+ pr_info("Loading %s\n", version);
ret = claw_register_debug_facility();
if (ret) {
- printk(KERN_WARNING "claw: %s() debug_register failed %d\n",
- __func__,ret);
+ pr_err("Registering with the S/390 debug feature"
+ " failed with error code %d\n", ret);
return ret;
}
CLAW_DBF_TEXT(2, setup, "init_mod");
@@ -3316,8 +3353,8 @@ claw_init(void)
if (ret) {
CLAW_DBF_TEXT(2, setup, "init_bad");
claw_unregister_debug_facility();
- printk(KERN_WARNING "claw; %s() cu3088 register failed %d\n",
- __func__,ret);
+ pr_err("Registering with the cu3088 device driver failed "
+ "with error code %d\n", ret);
}
return ret;
}
diff --git a/drivers/s390/net/ctcm_fsms.c b/drivers/s390/net/ctcm_fsms.c
index f29c7086fc19..4ded9ac2c5ef 100644
--- a/drivers/s390/net/ctcm_fsms.c
+++ b/drivers/s390/net/ctcm_fsms.c
@@ -410,9 +410,8 @@ static void chx_rx(fsm_instance *fi, int event, void *arg)
priv->stats.rx_length_errors++;
goto again;
}
- block_len -= 2;
- if (block_len > 0) {
- *((__u16 *)skb->data) = block_len;
+ if (block_len > 2) {
+ *((__u16 *)skb->data) = block_len - 2;
ctcm_unpack_skb(ch, skb);
}
again:
diff --git a/drivers/s390/net/ctcm_main.c b/drivers/s390/net/ctcm_main.c
index 2678573becec..77f4033a0f4f 100644
--- a/drivers/s390/net/ctcm_main.c
+++ b/drivers/s390/net/ctcm_main.c
@@ -105,7 +105,8 @@ void ctcm_unpack_skb(struct channel *ch, struct sk_buff *pskb)
return;
}
pskb->protocol = ntohs(header->type);
- if (header->length <= LL_HEADER_LENGTH) {
+ if ((header->length <= LL_HEADER_LENGTH) ||
+ (len <= LL_HEADER_LENGTH)) {
if (!(ch->logflags & LOG_FLAG_ILLEGALSIZE)) {
CTCM_DBF_TEXT_(ERROR, CTC_DBF_ERROR,
"%s(%s): Illegal packet size %d(%d,%d)"
@@ -167,11 +168,9 @@ void ctcm_unpack_skb(struct channel *ch, struct sk_buff *pskb)
if (len > 0) {
skb_pull(pskb, header->length);
if (skb_tailroom(pskb) < LL_HEADER_LENGTH) {
- if (!(ch->logflags & LOG_FLAG_OVERRUN)) {
- CTCM_DBF_DEV_NAME(TRACE, dev,
- "Overrun in ctcm_unpack_skb");
- ch->logflags |= LOG_FLAG_OVERRUN;
- }
+ CTCM_DBF_DEV_NAME(TRACE, dev,
+ "Overrun in ctcm_unpack_skb");
+ ch->logflags |= LOG_FLAG_OVERRUN;
return;
}
skb_put(pskb, LL_HEADER_LENGTH);
@@ -906,11 +905,11 @@ static int ctcm_tx(struct sk_buff *skb, struct net_device *dev)
}
if (ctcm_test_and_set_busy(dev))
- return -EBUSY;
+ return NETDEV_TX_BUSY;
dev->trans_start = jiffies;
if (ctcm_transmit_skb(priv->channel[WRITE], skb) != 0)
- return 1;
+ return NETDEV_TX_BUSY;
return 0;
}
@@ -1099,12 +1098,24 @@ static void ctcm_free_netdevice(struct net_device *dev)
struct mpc_group *ctcmpc_init_mpc_group(struct ctcm_priv *priv);
+static const struct net_device_ops ctcm_netdev_ops = {
+ .ndo_open = ctcm_open,
+ .ndo_stop = ctcm_close,
+ .ndo_get_stats = ctcm_stats,
+ .ndo_change_mtu = ctcm_change_mtu,
+ .ndo_start_xmit = ctcm_tx,
+};
+
+static const struct net_device_ops ctcm_mpc_netdev_ops = {
+ .ndo_open = ctcm_open,
+ .ndo_stop = ctcm_close,
+ .ndo_get_stats = ctcm_stats,
+ .ndo_change_mtu = ctcm_change_mtu,
+ .ndo_start_xmit = ctcmpc_tx,
+};
+
void static ctcm_dev_setup(struct net_device *dev)
{
- dev->open = ctcm_open;
- dev->stop = ctcm_close;
- dev->get_stats = ctcm_stats;
- dev->change_mtu = ctcm_change_mtu;
dev->type = ARPHRD_SLIP;
dev->tx_queue_len = 100;
dev->flags = IFF_POINTOPOINT | IFF_NOARP;
@@ -1157,12 +1168,12 @@ static struct net_device *ctcm_init_netdevice(struct ctcm_priv *priv)
dev->mtu = MPC_BUFSIZE_DEFAULT -
TH_HEADER_LENGTH - PDU_HEADER_LENGTH;
- dev->hard_start_xmit = ctcmpc_tx;
+ dev->netdev_ops = &ctcm_mpc_netdev_ops;
dev->hard_header_len = TH_HEADER_LENGTH + PDU_HEADER_LENGTH;
priv->buffer_size = MPC_BUFSIZE_DEFAULT;
} else {
dev->mtu = CTCM_BUFSIZE_DEFAULT - LL_HEADER_LENGTH - 2;
- dev->hard_start_xmit = ctcm_tx;
+ dev->netdev_ops = &ctcm_netdev_ops;
dev->hard_header_len = LL_HEADER_LENGTH + 2;
}
diff --git a/drivers/s390/net/ctcm_mpc.c b/drivers/s390/net/ctcm_mpc.c
index 3db5f846bbf6..781e18be7e8f 100644
--- a/drivers/s390/net/ctcm_mpc.c
+++ b/drivers/s390/net/ctcm_mpc.c
@@ -393,7 +393,6 @@ int ctc_mpc_alloc_channel(int port_num, void (*callback)(int, int))
} else {
/* there are problems...bail out */
/* there may be a state mismatch so restart */
- grp->port_persist = 1;
fsm_event(grp->fsm, MPCG_EVENT_INOP, dev);
grp->allocchan_callback_retries = 0;
}
@@ -699,11 +698,9 @@ static void ctcmpc_send_sweep_resp(struct channel *rch)
return;
done:
- if (rc != 0) {
- grp->in_sweep = 0;
- ctcm_clear_busy_do(dev);
- fsm_event(grp->fsm, MPCG_EVENT_INOP, dev);
- }
+ grp->in_sweep = 0;
+ ctcm_clear_busy_do(dev);
+ fsm_event(grp->fsm, MPCG_EVENT_INOP, dev);
return;
}
@@ -1118,7 +1115,6 @@ static void ctcmpc_unpack_skb(struct channel *ch, struct sk_buff *pskb)
if (unlikely(fsm_getstate(grp->fsm) != MPCG_STATE_READY))
goto done;
- pdu_last_seen = 0;
while ((pskb->len > 0) && !pdu_last_seen) {
curr_pdu = (struct pdu *)pskb->data;
@@ -1396,8 +1392,7 @@ static void mpc_action_go_inop(fsm_instance *fi, int event, void *arg)
CTCM_FUNTAIL, dev->name);
if ((grp->saved_state != MPCG_STATE_RESET) ||
/* dealloc_channel has been called */
- ((grp->saved_state == MPCG_STATE_RESET) &&
- (grp->port_persist == 0)))
+ (grp->port_persist == 0))
fsm_deltimer(&priv->restart_timer);
wch = priv->channel[WRITE];
@@ -1917,10 +1912,8 @@ static void mpc_action_doxid7(fsm_instance *fsm, int event, void *arg)
if (priv)
grp = priv->mpcg;
- if (grp == NULL) {
- fsm_event(grp->fsm, MPCG_EVENT_INOP, dev);
+ if (grp == NULL)
return;
- }
for (direction = READ; direction <= WRITE; direction++) {
struct channel *ch = priv->channel[direction];
diff --git a/drivers/s390/net/lcs.c b/drivers/s390/net/lcs.c
index 49c3bfa1afd7..a45bc24eb5f9 100644
--- a/drivers/s390/net/lcs.c
+++ b/drivers/s390/net/lcs.c
@@ -39,6 +39,7 @@
#include <linux/in.h>
#include <linux/igmp.h>
#include <linux/delay.h>
+#include <linux/kthread.h>
#include <net/arp.h>
#include <net/ip.h>
@@ -1259,7 +1260,6 @@ lcs_register_mc_addresses(void *data)
struct in_device *in4_dev;
card = (struct lcs_card *) data;
- daemonize("regipm");
if (!lcs_do_run_thread(card, LCS_SET_MC_THREAD))
return 0;
@@ -1562,7 +1562,7 @@ __lcs_start_xmit(struct lcs_card *card, struct sk_buff *skb,
if (skb == NULL) {
card->stats.tx_dropped++;
card->stats.tx_errors++;
- return -EIO;
+ return 0;
}
if (card->state != DEV_STATE_UP) {
dev_kfree_skb(skb);
@@ -1587,7 +1587,7 @@ __lcs_start_xmit(struct lcs_card *card, struct sk_buff *skb,
card->tx_buffer = lcs_get_buffer(&card->write);
if (card->tx_buffer == NULL) {
card->stats.tx_dropped++;
- rc = -EBUSY;
+ rc = NETDEV_TX_BUSY;
goto out;
}
card->tx_buffer->callback = lcs_txbuffer_cb;
@@ -1753,11 +1753,10 @@ lcs_start_kernel_thread(struct work_struct *work)
struct lcs_card *card = container_of(work, struct lcs_card, kernel_thread_starter);
LCS_DBF_TEXT(5, trace, "krnthrd");
if (lcs_do_start_thread(card, LCS_RECOVERY_THREAD))
- kernel_thread(lcs_recovery, (void *) card, SIGCHLD);
+ kthread_run(lcs_recovery, card, "lcs_recover");
#ifdef CONFIG_IP_MULTICAST
if (lcs_do_start_thread(card, LCS_SET_MC_THREAD))
- kernel_thread(lcs_register_mc_addresses,
- (void *) card, SIGCHLD);
+ kthread_run(lcs_register_mc_addresses, card, "regipm");
#endif
}
@@ -2101,6 +2100,20 @@ lcs_register_netdev(struct ccwgroup_device *ccwgdev)
/**
* lcs_new_device will be called by setting the group device online.
*/
+static const struct net_device_ops lcs_netdev_ops = {
+ .ndo_open = lcs_open_device,
+ .ndo_stop = lcs_stop_device,
+ .ndo_get_stats = lcs_getstats,
+ .ndo_start_xmit = lcs_start_xmit,
+};
+
+static const struct net_device_ops lcs_mc_netdev_ops = {
+ .ndo_open = lcs_open_device,
+ .ndo_stop = lcs_stop_device,
+ .ndo_get_stats = lcs_getstats,
+ .ndo_start_xmit = lcs_start_xmit,
+ .ndo_set_multicast_list = lcs_set_multicast_list,
+};
static int
lcs_new_device(struct ccwgroup_device *ccwgdev)
@@ -2168,14 +2181,11 @@ lcs_new_device(struct ccwgroup_device *ccwgdev)
goto out;
card->dev = dev;
card->dev->ml_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;
+ card->dev->netdev_ops = &lcs_netdev_ops;
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;
+ card->dev->netdev_ops = &lcs_mc_netdev_ops;
#endif
netdev_out:
lcs_set_allowed_threads(card,0xffffffff);
@@ -2258,7 +2268,6 @@ lcs_recovery(void *ptr)
int rc;
card = (struct lcs_card *) ptr;
- daemonize("lcs_recover");
LCS_DBF_TEXT(4, trace, "recover1");
if (!lcs_do_run_thread(card, LCS_RECOVERY_THREAD))
diff --git a/drivers/s390/net/netiucv.c b/drivers/s390/net/netiucv.c
index 930e2fc2a011..be716e45f7ac 100644
--- a/drivers/s390/net/netiucv.c
+++ b/drivers/s390/net/netiucv.c
@@ -1312,7 +1312,7 @@ static int netiucv_tx(struct sk_buff *skb, struct net_device *dev)
if (netiucv_test_and_set_busy(dev)) {
IUCV_DBF_TEXT(data, 2, "EBUSY from netiucv_tx\n");
- return -EBUSY;
+ return NETDEV_TX_BUSY;
}
dev->trans_start = jiffies;
rc = netiucv_transmit_skb(privptr->conn, skb) != 0;
@@ -1876,20 +1876,24 @@ static void netiucv_free_netdevice(struct net_device *dev)
/**
* Initialize a net device. (Called from kernel in alloc_netdev())
*/
+static const struct net_device_ops netiucv_netdev_ops = {
+ .ndo_open = netiucv_open,
+ .ndo_stop = netiucv_close,
+ .ndo_get_stats = netiucv_stats,
+ .ndo_start_xmit = netiucv_tx,
+ .ndo_change_mtu = netiucv_change_mtu,
+};
+
static void netiucv_setup_netdevice(struct net_device *dev)
{
dev->mtu = NETIUCV_MTU_DEFAULT;
- dev->hard_start_xmit = netiucv_tx;
- dev->open = netiucv_open;
- dev->stop = netiucv_close;
- dev->get_stats = netiucv_stats;
- dev->change_mtu = netiucv_change_mtu;
dev->destructor = netiucv_free_netdevice;
dev->hard_header_len = NETIUCV_HDRLEN;
dev->addr_len = 0;
dev->type = ARPHRD_SLIP;
dev->tx_queue_len = NETIUCV_QUEUELEN_DEFAULT;
dev->flags = IFF_POINTOPOINT | IFF_NOARP;
+ dev->netdev_ops = &netiucv_netdev_ops;
}
/**
diff --git a/drivers/s390/net/qeth_core.h b/drivers/s390/net/qeth_core.h
index e0c45574b0c8..447e1d19581a 100644
--- a/drivers/s390/net/qeth_core.h
+++ b/drivers/s390/net/qeth_core.h
@@ -134,6 +134,7 @@ struct qeth_perf_stats {
unsigned int sg_skbs_rx;
unsigned int sg_frags_rx;
unsigned int sg_alloc_page_rx;
+ unsigned int tx_csum;
};
/* Routing stuff */
@@ -403,7 +404,6 @@ struct qeth_qdio_q {
/* possible types of qeth large_send support */
enum qeth_large_send_types {
QETH_LARGE_SEND_NO,
- QETH_LARGE_SEND_EDDP,
QETH_LARGE_SEND_TSO,
};
@@ -838,11 +838,9 @@ int qeth_get_cast_type(struct qeth_card *, struct sk_buff *);
int qeth_get_priority_queue(struct qeth_card *, struct sk_buff *, int, int);
int qeth_get_elements_no(struct qeth_card *, void *, struct sk_buff *, int);
int qeth_do_send_packet_fast(struct qeth_card *, struct qeth_qdio_out_q *,
- struct sk_buff *, struct qeth_hdr *, int,
- struct qeth_eddp_context *, int, int);
+ struct sk_buff *, struct qeth_hdr *, int, int, int);
int qeth_do_send_packet(struct qeth_card *, struct qeth_qdio_out_q *,
- struct sk_buff *, struct qeth_hdr *,
- int, struct qeth_eddp_context *);
+ struct sk_buff *, struct qeth_hdr *, int);
int qeth_core_get_stats_count(struct net_device *);
void qeth_core_get_ethtool_stats(struct net_device *,
struct ethtool_stats *, u64 *);
diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c
index d1b5bebea7fb..c827d69b5a91 100644
--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -17,7 +17,6 @@
#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/ip.h>
-#include <linux/ipv6.h>
#include <linux/tcp.h>
#include <linux/mii.h>
#include <linux/kthread.h>
@@ -26,7 +25,6 @@
#include <asm/io.h>
#include "qeth_core.h"
-#include "qeth_core_offl.h"
struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS] = {
/* define dbf - Name, Pages, Areas, Maxlen, Level, View, Handle */
@@ -285,17 +283,6 @@ int qeth_set_large_send(struct qeth_card *card,
netif_tx_disable(card->dev);
card->options.large_send = type;
switch (card->options.large_send) {
- case QETH_LARGE_SEND_EDDP:
- if (card->info.type != QETH_CARD_TYPE_IQD) {
- card->dev->features |= NETIF_F_TSO | NETIF_F_SG |
- NETIF_F_HW_CSUM;
- } else {
- card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG |
- NETIF_F_HW_CSUM);
- card->options.large_send = QETH_LARGE_SEND_NO;
- rc = -EOPNOTSUPP;
- }
- break;
case QETH_LARGE_SEND_TSO:
if (qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
card->dev->features |= NETIF_F_TSO | NETIF_F_SG |
@@ -956,7 +943,6 @@ static void qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
dev_kfree_skb_any(skb);
skb = skb_dequeue(&buf->skb_list);
}
- qeth_eddp_buf_release_contexts(buf);
for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i) {
if (buf->buffer->element[i].addr && buf->is_header[i])
kmem_cache_free(qeth_core_header_cache,
@@ -1690,7 +1676,7 @@ int qeth_send_control_data(struct qeth_card *card, int len,
int rc;
unsigned long flags;
struct qeth_reply *reply = NULL;
- unsigned long timeout;
+ unsigned long timeout, event_timeout;
struct qeth_ipa_cmd *cmd;
QETH_DBF_TEXT(TRACE, 2, "sendctl");
@@ -1715,9 +1701,10 @@ int qeth_send_control_data(struct qeth_card *card, int len,
qeth_prepare_control_data(card, len, iob);
if (IS_IPA(iob->data))
- timeout = jiffies + QETH_IPA_TIMEOUT;
+ event_timeout = QETH_IPA_TIMEOUT;
else
- timeout = jiffies + QETH_TIMEOUT;
+ event_timeout = QETH_TIMEOUT;
+ timeout = jiffies + event_timeout;
QETH_DBF_TEXT(TRACE, 6, "noirqpnd");
spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
@@ -1745,7 +1732,7 @@ int qeth_send_control_data(struct qeth_card *card, int len,
if ((cmd->hdr.command == IPA_CMD_SETIP) &&
(cmd->hdr.prot_version == QETH_PROT_IPV4)) {
if (!wait_event_timeout(reply->wait_q,
- atomic_read(&reply->received), timeout))
+ atomic_read(&reply->received), event_timeout))
goto time_err;
} else {
while (!atomic_read(&reply->received)) {
@@ -2693,40 +2680,21 @@ static int qeth_handle_send_error(struct qeth_card *card,
struct qeth_qdio_out_buffer *buffer, unsigned int qdio_err)
{
int sbalf15 = buffer->buffer->element[15].flags & 0xff;
- int cc = qdio_err & 3;
QETH_DBF_TEXT(TRACE, 6, "hdsnderr");
qeth_check_qdio_errors(buffer->buffer, qdio_err, "qouterr");
- switch (cc) {
- case 0:
- if (qdio_err) {
- QETH_DBF_TEXT(TRACE, 1, "lnkfail");
- QETH_DBF_TEXT_(TRACE, 1, "%s", CARD_BUS_ID(card));
- QETH_DBF_TEXT_(TRACE, 1, "%04x %02x",
- (u16)qdio_err, (u8)sbalf15);
- return QETH_SEND_ERROR_LINK_FAILURE;
- }
+
+ if (!qdio_err)
return QETH_SEND_ERROR_NONE;
- case 2:
- if (qdio_err & QDIO_ERROR_SIGA_BUSY) {
- QETH_DBF_TEXT(TRACE, 1, "SIGAcc2B");
- QETH_DBF_TEXT_(TRACE, 1, "%s", CARD_BUS_ID(card));
- return QETH_SEND_ERROR_KICK_IT;
- }
- if ((sbalf15 >= 15) && (sbalf15 <= 31))
- return QETH_SEND_ERROR_RETRY;
- return QETH_SEND_ERROR_LINK_FAILURE;
- /* look at qdio_error and sbalf 15 */
- case 1:
- QETH_DBF_TEXT(TRACE, 1, "SIGAcc1");
- QETH_DBF_TEXT_(TRACE, 1, "%s", CARD_BUS_ID(card));
- return QETH_SEND_ERROR_LINK_FAILURE;
- case 3:
- default:
- QETH_DBF_TEXT(TRACE, 1, "SIGAcc3");
- QETH_DBF_TEXT_(TRACE, 1, "%s", CARD_BUS_ID(card));
- return QETH_SEND_ERROR_KICK_IT;
- }
+
+ if ((sbalf15 >= 15) && (sbalf15 <= 31))
+ return QETH_SEND_ERROR_RETRY;
+
+ QETH_DBF_TEXT(TRACE, 1, "lnkfail");
+ QETH_DBF_TEXT_(TRACE, 1, "%s", CARD_BUS_ID(card));
+ QETH_DBF_TEXT_(TRACE, 1, "%04x %02x",
+ (u16)qdio_err, (u8)sbalf15);
+ return QETH_SEND_ERROR_LINK_FAILURE;
}
/*
@@ -2862,10 +2830,14 @@ static void qeth_flush_buffers(struct qeth_qdio_out_q *queue, int index,
qeth_get_micros() -
queue->card->perf_stats.outbound_do_qdio_start_time;
if (rc) {
+ queue->card->stats.tx_errors += count;
+ /* ignore temporary SIGA errors without busy condition */
+ if (rc == QDIO_ERROR_SIGA_TARGET)
+ return;
QETH_DBF_TEXT(TRACE, 2, "flushbuf");
QETH_DBF_TEXT_(TRACE, 2, " err%d", rc);
QETH_DBF_TEXT_(TRACE, 2, "%s", CARD_DDEV_ID(queue->card));
- queue->card->stats.tx_errors += count;
+
/* this must not happen under normal circumstances. if it
* happens something is really wrong -> recover */
qeth_schedule_recovery(queue->card);
@@ -2940,13 +2912,7 @@ void qeth_qdio_output_handler(struct ccw_device *ccwdev,
}
for (i = first_element; i < (first_element + count); ++i) {
buffer = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
- /*we only handle the KICK_IT error by doing a recovery */
- if (qeth_handle_send_error(card, buffer, qdio_error)
- == QETH_SEND_ERROR_KICK_IT){
- netif_stop_queue(card->dev);
- qeth_schedule_recovery(card);
- return;
- }
+ qeth_handle_send_error(card, buffer, qdio_error);
qeth_clear_output_buffer(queue, buffer);
}
atomic_sub(count, &queue->used_buffers);
@@ -3187,11 +3153,9 @@ static inline int qeth_fill_buffer(struct qeth_qdio_out_q *queue,
int qeth_do_send_packet_fast(struct qeth_card *card,
struct qeth_qdio_out_q *queue, struct sk_buff *skb,
struct qeth_hdr *hdr, int elements_needed,
- struct qeth_eddp_context *ctx, int offset, int hd_len)
+ int offset, int hd_len)
{
struct qeth_qdio_out_buffer *buffer;
- int buffers_needed = 0;
- int flush_cnt = 0;
int index;
/* spin until we get the queue ... */
@@ -3206,27 +3170,11 @@ int qeth_do_send_packet_fast(struct qeth_card *card,
*/
if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY)
goto out;
- if (ctx == NULL)
- queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
+ queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
QDIO_MAX_BUFFERS_PER_Q;
- else {
- buffers_needed = qeth_eddp_check_buffers_for_context(queue,
- ctx);
- if (buffers_needed < 0)
- goto out;
- queue->next_buf_to_fill =
- (queue->next_buf_to_fill + buffers_needed) %
- QDIO_MAX_BUFFERS_PER_Q;
- }
atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
- if (ctx == NULL) {
- qeth_fill_buffer(queue, buffer, skb, hdr, offset, hd_len);
- qeth_flush_buffers(queue, index, 1);
- } else {
- flush_cnt = qeth_eddp_fill_buffer(queue, ctx, index);
- WARN_ON(buffers_needed != flush_cnt);
- qeth_flush_buffers(queue, index, flush_cnt);
- }
+ qeth_fill_buffer(queue, buffer, skb, hdr, offset, hd_len);
+ qeth_flush_buffers(queue, index, 1);
return 0;
out:
atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
@@ -3236,7 +3184,7 @@ EXPORT_SYMBOL_GPL(qeth_do_send_packet_fast);
int qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
struct sk_buff *skb, struct qeth_hdr *hdr,
- int elements_needed, struct qeth_eddp_context *ctx)
+ int elements_needed)
{
struct qeth_qdio_out_buffer *buffer;
int start_index;
@@ -3262,53 +3210,32 @@ int qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
qeth_switch_to_packing_if_needed(queue);
if (queue->do_pack) {
do_pack = 1;
- if (ctx == NULL) {
- /* does packet fit in current buffer? */
- if ((QETH_MAX_BUFFER_ELEMENTS(card) -
- buffer->next_element_to_fill) < elements_needed) {
- /* ... no -> set state PRIMED */
- atomic_set(&buffer->state,
- QETH_QDIO_BUF_PRIMED);
- flush_count++;
- queue->next_buf_to_fill =
- (queue->next_buf_to_fill + 1) %
- QDIO_MAX_BUFFERS_PER_Q;
- buffer = &queue->bufs[queue->next_buf_to_fill];
- /* we did a step forward, so check buffer state
- * again */
- if (atomic_read(&buffer->state) !=
- QETH_QDIO_BUF_EMPTY){
- qeth_flush_buffers(queue, start_index,
+ /* does packet fit in current buffer? */
+ if ((QETH_MAX_BUFFER_ELEMENTS(card) -
+ buffer->next_element_to_fill) < elements_needed) {
+ /* ... no -> set state PRIMED */
+ atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
+ flush_count++;
+ queue->next_buf_to_fill =
+ (queue->next_buf_to_fill + 1) %
+ QDIO_MAX_BUFFERS_PER_Q;
+ buffer = &queue->bufs[queue->next_buf_to_fill];
+ /* we did a step forward, so check buffer state
+ * again */
+ if (atomic_read(&buffer->state) !=
+ QETH_QDIO_BUF_EMPTY) {
+ qeth_flush_buffers(queue, start_index,
flush_count);
- atomic_set(&queue->state,
+ atomic_set(&queue->state,
QETH_OUT_Q_UNLOCKED);
- return -EBUSY;
- }
- }
- } else {
- /* check if we have enough elements (including following
- * free buffers) to handle eddp context */
- if (qeth_eddp_check_buffers_for_context(queue, ctx)
- < 0) {
- rc = -EBUSY;
- goto out;
+ return -EBUSY;
}
}
}
- if (ctx == NULL)
- tmp = qeth_fill_buffer(queue, buffer, skb, hdr, -1, 0);
- else {
- tmp = qeth_eddp_fill_buffer(queue, ctx,
- queue->next_buf_to_fill);
- if (tmp < 0) {
- rc = -EBUSY;
- goto out;
- }
- }
+ tmp = qeth_fill_buffer(queue, buffer, skb, hdr, -1, 0);
queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) %
QDIO_MAX_BUFFERS_PER_Q;
flush_count += tmp;
-out:
if (flush_count)
qeth_flush_buffers(queue, start_index, flush_count);
else if (!atomic_read(&queue->set_pci_flags_count))
@@ -4327,6 +4254,7 @@ static struct {
/* 30 */{"tx count"},
{"tx do_QDIO time"},
{"tx do_QDIO count"},
+ {"tx csum"},
};
int qeth_core_get_stats_count(struct net_device *dev)
@@ -4378,6 +4306,7 @@ void qeth_core_get_ethtool_stats(struct net_device *dev,
data[30] = card->perf_stats.outbound_cnt;
data[31] = card->perf_stats.outbound_do_qdio_time;
data[32] = card->perf_stats.outbound_do_qdio_cnt;
+ data[33] = card->perf_stats.tx_csum;
}
EXPORT_SYMBOL_GPL(qeth_core_get_ethtool_stats);
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);
diff --git a/drivers/s390/net/qeth_core_offl.h b/drivers/s390/net/qeth_core_offl.h
index 86bf7df8cf16..e69de29bb2d1 100644
--- a/drivers/s390/net/qeth_core_offl.h
+++ b/drivers/s390/net/qeth_core_offl.h
@@ -1,76 +0,0 @@
-/*
- * drivers/s390/net/qeth_core_offl.h
- *
- * Copyright IBM Corp. 2007
- * Author(s): Thomas Spatzier <tspat@de.ibm.com>,
- * Frank Blaschka <frank.blaschka@de.ibm.com>
- */
-
-#ifndef __QETH_CORE_OFFL_H__
-#define __QETH_CORE_OFFL_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;
-};
-
-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));
-
-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 *);
-
-void qeth_tso_fill_header(struct qeth_card *, struct qeth_hdr *,
- struct sk_buff *);
-void qeth_tx_csum(struct sk_buff *skb);
-
-#endif /* __QETH_CORE_EDDP_H__ */
diff --git a/drivers/s390/net/qeth_core_sys.c b/drivers/s390/net/qeth_core_sys.c
index c26e842ad905..568465d7517f 100644
--- a/drivers/s390/net/qeth_core_sys.c
+++ b/drivers/s390/net/qeth_core_sys.c
@@ -427,8 +427,6 @@ static ssize_t qeth_dev_large_send_show(struct device *dev,
switch (card->options.large_send) {
case QETH_LARGE_SEND_NO:
return sprintf(buf, "%s\n", "no");
- case QETH_LARGE_SEND_EDDP:
- return sprintf(buf, "%s\n", "EDDP");
case QETH_LARGE_SEND_TSO:
return sprintf(buf, "%s\n", "TSO");
default:
@@ -449,8 +447,6 @@ static ssize_t qeth_dev_large_send_store(struct device *dev,
tmp = strsep((char **) &buf, "\n");
if (!strcmp(tmp, "no")) {
type = QETH_LARGE_SEND_NO;
- } else if (!strcmp(tmp, "EDDP")) {
- type = QETH_LARGE_SEND_EDDP;
} else if (!strcmp(tmp, "TSO")) {
type = QETH_LARGE_SEND_TSO;
} else {
diff --git a/drivers/s390/net/qeth_l2_main.c b/drivers/s390/net/qeth_l2_main.c
index 07ab8a5c1c46..172031baedc1 100644
--- a/drivers/s390/net/qeth_l2_main.c
+++ b/drivers/s390/net/qeth_l2_main.c
@@ -21,7 +21,6 @@
#include <linux/ip.h>
#include "qeth_core.h"
-#include "qeth_core_offl.h"
static int qeth_l2_set_offline(struct ccwgroup_device *);
static int qeth_l2_stop(struct net_device *);
@@ -328,6 +327,10 @@ static void qeth_l2_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
struct qeth_vlan_vid *id;
QETH_DBF_TEXT_(TRACE, 4, "aid:%d", vid);
+ if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
+ QETH_DBF_TEXT(TRACE, 3, "aidREC");
+ return;
+ }
id = kmalloc(sizeof(struct qeth_vlan_vid), GFP_ATOMIC);
if (id) {
id->vid = vid;
@@ -344,6 +347,10 @@ static void qeth_l2_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
struct qeth_card *card = dev->ml_priv;
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_bh(&card->vlanlock);
list_for_each_entry(id, &card->vid_list, list) {
if (id->vid == vid) {
@@ -379,7 +386,8 @@ static int qeth_l2_stop_card(struct qeth_card *card, int recovery_mode)
dev_close(card->dev);
rtnl_unlock();
}
- if (!card->use_hard_stop) {
+ if (!card->use_hard_stop ||
+ recovery_mode) {
__u8 *mac = &card->dev->dev_addr[0];
rc = qeth_l2_send_delmac(card, mac);
QETH_DBF_TEXT_(SETUP, 2, "Lerr%d", rc);
@@ -388,7 +396,8 @@ static int qeth_l2_stop_card(struct qeth_card *card, int recovery_mode)
}
if (card->state == CARD_STATE_SOFTSETUP) {
qeth_l2_process_vlans(card, 1);
- if (!card->use_hard_stop)
+ if (!card->use_hard_stop ||
+ recovery_mode)
qeth_l2_del_all_mc(card);
qeth_clear_ipacmd_list(card);
card->state = CARD_STATE_HARDSETUP;
@@ -593,6 +602,10 @@ static int qeth_l2_set_mac_address(struct net_device *dev, void *p)
}
QETH_DBF_TEXT_(TRACE, 3, "%s", CARD_BUS_ID(card));
QETH_DBF_HEX(TRACE, 3, addr->sa_data, OSA_ADDR_LEN);
+ if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
+ QETH_DBF_TEXT(TRACE, 3, "setmcREC");
+ return -ERESTARTSYS;
+ }
rc = qeth_l2_send_delmac(card, &card->dev->dev_addr[0]);
if (!rc)
rc = qeth_l2_send_setmac(card, addr->sa_data);
@@ -608,6 +621,9 @@ static void qeth_l2_set_multicast_list(struct net_device *dev)
return ;
QETH_DBF_TEXT(TRACE, 3, "setmulti");
+ if (qeth_threads_running(card, QETH_RECOVER_THREAD) &&
+ (card->state != CARD_STATE_UP))
+ return;
qeth_l2_del_all_mc(card);
spin_lock_bh(&card->mclock);
for (dm = dev->mc_list; dm; dm = dm->next)
@@ -634,8 +650,6 @@ static int qeth_l2_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
struct qeth_qdio_out_q *queue = card->qdio.out_qs
[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 elements_needed = 0;
int hd_len = 0;
@@ -655,14 +669,10 @@ static int qeth_l2_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
}
netif_stop_queue(dev);
- if (skb_is_gso(skb))
- large_send = QETH_LARGE_SEND_EDDP;
-
if (card->info.type == QETH_CARD_TYPE_OSN)
hdr = (struct qeth_hdr *)skb->data;
else {
- if ((card->info.type == QETH_CARD_TYPE_IQD) && (!large_send) &&
- (skb_shinfo(skb)->nr_frags == 0)) {
+ if (card->info.type == QETH_CARD_TYPE_IQD) {
new_skb = skb;
data_offset = ETH_HLEN;
hd_len = ETH_HLEN;
@@ -689,59 +699,26 @@ static int qeth_l2_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
}
}
- if (large_send == QETH_LARGE_SEND_EDDP) {
- 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 {
- elements = qeth_get_elements_no(card, (void *)hdr, new_skb,
+ elements = qeth_get_elements_no(card, (void *)hdr, new_skb,
elements_needed);
- if (!elements) {
- if (data_offset >= 0)
- kmem_cache_free(qeth_core_header_cache, hdr);
- goto tx_drop;
- }
+ if (!elements) {
+ if (data_offset >= 0)
+ kmem_cache_free(qeth_core_header_cache, hdr);
+ goto tx_drop;
}
- if ((large_send == QETH_LARGE_SEND_NO) &&
- (skb->ip_summed == CHECKSUM_PARTIAL))
- qeth_tx_csum(new_skb);
-
if (card->info.type != QETH_CARD_TYPE_IQD)
rc = qeth_do_send_packet(card, queue, new_skb, hdr,
- elements, ctx);
+ elements);
else
rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr,
- elements, ctx, data_offset, hd_len);
+ elements, data_offset, hd_len);
if (!rc) {
card->stats.tx_packets++;
card->stats.tx_bytes += tx_bytes;
if (new_skb != skb)
dev_kfree_skb_any(skb);
- if (card->options.performance_stats) {
- if (large_send != QETH_LARGE_SEND_NO) {
- card->perf_stats.large_send_bytes += tx_bytes;
- card->perf_stats.large_send_cnt++;
- }
- if (skb_shinfo(new_skb)->nr_frags > 0) {
- card->perf_stats.sg_skbs_sent++;
- /* nr_frags + skb->data */
- card->perf_stats.sg_frags_sent +=
- skb_shinfo(new_skb)->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);
@@ -878,30 +855,8 @@ static void qeth_l2_remove_device(struct ccwgroup_device *cgdev)
return;
}
-static int qeth_l2_ethtool_set_tso(struct net_device *dev, u32 data)
-{
- struct qeth_card *card = dev->ml_priv;
-
- if (data) {
- if (card->options.large_send == QETH_LARGE_SEND_NO) {
- card->options.large_send = QETH_LARGE_SEND_EDDP;
- dev->features |= NETIF_F_TSO;
- }
- } else {
- dev->features &= ~NETIF_F_TSO;
- card->options.large_send = QETH_LARGE_SEND_NO;
- }
- return 0;
-}
-
static struct ethtool_ops qeth_l2_ethtool_ops = {
.get_link = ethtool_op_get_link,
- .get_tx_csum = ethtool_op_get_tx_csum,
- .set_tx_csum = ethtool_op_set_tx_hw_csum,
- .get_sg = ethtool_op_get_sg,
- .set_sg = ethtool_op_set_sg,
- .get_tso = ethtool_op_get_tso,
- .set_tso = qeth_l2_ethtool_set_tso,
.get_strings = qeth_core_get_strings,
.get_ethtool_stats = qeth_core_get_ethtool_stats,
.get_stats_count = qeth_core_get_stats_count,
diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c
index 3d04920b9bb9..0ba3817cb6a7 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;
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.