qeth: HiperSockets Network Traffic Analyzer
New feature to trace HiperSockets network traffic for debugging
purposes.
Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c
index d34804d..2c8e9da 100644
--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -269,6 +269,7 @@
card->qdio.init_pool.buf_count = bufcnt;
return qeth_alloc_buffer_pool(card);
}
+EXPORT_SYMBOL_GPL(qeth_realloc_buffer_pool);
static int qeth_issue_next_read(struct qeth_card *card)
{
@@ -350,8 +351,10 @@
if (IS_IPA(iob->data)) {
cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data);
if (IS_IPA_REPLY(cmd)) {
- if (cmd->hdr.command < IPA_CMD_SETCCID ||
- cmd->hdr.command > IPA_CMD_MODCCID)
+ if (cmd->hdr.command != IPA_CMD_SETCCID &&
+ cmd->hdr.command != IPA_CMD_DELCCID &&
+ cmd->hdr.command != IPA_CMD_MODCCID &&
+ cmd->hdr.command != IPA_CMD_SET_DIAG_ASS)
qeth_issue_ipa_msg(cmd,
cmd->hdr.return_code, card);
return cmd;
@@ -1100,11 +1103,6 @@
card->thread_running_mask = 0;
INIT_WORK(&card->kernel_thread_starter, qeth_start_kernel_thread);
INIT_LIST_HEAD(&card->ip_list);
- card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_KERNEL);
- if (!card->ip_tbd_list) {
- QETH_DBF_TEXT(SETUP, 0, "iptbdnom");
- return -ENOMEM;
- }
INIT_LIST_HEAD(card->ip_tbd_list);
INIT_LIST_HEAD(&card->cmd_waiter_list);
init_waitqueue_head(&card->wait_q);
@@ -1138,21 +1136,30 @@
QETH_DBF_TEXT(SETUP, 2, "alloccrd");
card = kzalloc(sizeof(struct qeth_card), GFP_DMA|GFP_KERNEL);
if (!card)
- return NULL;
+ goto out;
QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
- if (qeth_setup_channel(&card->read)) {
- kfree(card);
- return NULL;
+ card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_KERNEL);
+ if (!card->ip_tbd_list) {
+ QETH_DBF_TEXT(SETUP, 0, "iptbdnom");
+ goto out_card;
}
- if (qeth_setup_channel(&card->write)) {
- qeth_clean_channel(&card->read);
- kfree(card);
- return NULL;
- }
+ if (qeth_setup_channel(&card->read))
+ goto out_ip;
+ if (qeth_setup_channel(&card->write))
+ goto out_channel;
card->options.layer2 = -1;
card->qeth_service_level.seq_print = qeth_core_sl_print;
register_service_level(&card->qeth_service_level);
return card;
+
+out_channel:
+ qeth_clean_channel(&card->read);
+out_ip:
+ kfree(card->ip_tbd_list);
+out_card:
+ kfree(card);
+out:
+ return NULL;
}
static int qeth_determine_card_type(struct qeth_card *card)
@@ -2573,8 +2580,8 @@
}
EXPORT_SYMBOL_GPL(qeth_query_setadapterparms);
-int qeth_check_qdio_errors(struct qdio_buffer *buf, unsigned int qdio_error,
- const char *dbftext)
+int qeth_check_qdio_errors(struct qeth_card *card, struct qdio_buffer *buf,
+ unsigned int qdio_error, const char *dbftext)
{
if (qdio_error) {
QETH_DBF_TEXT(TRACE, 2, dbftext);
@@ -2584,7 +2591,11 @@
QETH_DBF_TEXT_(QERR, 2, " F14=%02X",
buf->element[14].flags & 0xff);
QETH_DBF_TEXT_(QERR, 2, " qerr=%X", qdio_error);
- return 1;
+ if ((buf->element[15].flags & 0xff) == 0x12) {
+ card->stats.rx_dropped++;
+ return 0;
+ } else
+ return 1;
}
return 0;
}
@@ -2667,7 +2678,7 @@
qdio_err = 1;
}
}
- qeth_check_qdio_errors(buffer->buffer, qdio_err, "qouterr");
+ qeth_check_qdio_errors(card, buffer->buffer, qdio_err, "qouterr");
if (!qdio_err)
return QETH_SEND_ERROR_NONE;
@@ -3509,6 +3520,7 @@
{
struct qeth_card *card;
+ QETH_DBF_TEXT(TRACE, 4, "txtimeo");
card = dev->ml_priv;
card->stats.tx_errors++;
qeth_schedule_recovery(card);
@@ -3847,9 +3859,7 @@
int qeth_core_hardsetup_card(struct qeth_card *card)
{
- struct qdio_ssqd_desc *ssqd;
int retries = 0;
- int mpno = 0;
int rc;
QETH_DBF_TEXT(SETUP, 2, "hrdsetup");
@@ -3882,31 +3892,6 @@
else
goto retry;
}
-
- rc = qeth_get_unitaddr(card);
- if (rc) {
- QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
- return rc;
- }
-
- ssqd = kmalloc(sizeof(struct qdio_ssqd_desc), GFP_KERNEL);
- if (!ssqd) {
- rc = -ENOMEM;
- goto out;
- }
- rc = qdio_get_ssqd_desc(CARD_DDEV(card), ssqd);
- if (rc == 0)
- mpno = ssqd->pcnt;
- kfree(ssqd);
-
- if (mpno)
- mpno = min(mpno - 1, QETH_MAX_PORTNO);
- if (card->info.portno > mpno) {
- QETH_DBF_MESSAGE(2, "Device %s does not offer port number %d"
- "\n.", CARD_BUS_ID(card), card->info.portno);
- rc = -ENODEV;
- goto out;
- }
qeth_init_tokens(card);
qeth_init_func_level(card);
rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb);
@@ -3990,7 +3975,7 @@
struct qdio_buffer_element *element = *__element;
int offset = *__offset;
struct sk_buff *skb = NULL;
- int skb_len;
+ int skb_len = 0;
void *data_ptr;
int data_len;
int headroom = 0;
@@ -4009,20 +3994,24 @@
*hdr = element->addr + offset;
offset += sizeof(struct qeth_hdr);
- if (card->options.layer2) {
- if (card->info.type == QETH_CARD_TYPE_OSN) {
- skb_len = (*hdr)->hdr.osn.pdu_length;
- headroom = sizeof(struct qeth_hdr);
- } else {
- skb_len = (*hdr)->hdr.l2.pkt_length;
- }
- } else {
+ switch ((*hdr)->hdr.l2.id) {
+ case QETH_HEADER_TYPE_LAYER2:
+ skb_len = (*hdr)->hdr.l2.pkt_length;
+ break;
+ case QETH_HEADER_TYPE_LAYER3:
skb_len = (*hdr)->hdr.l3.length;
if ((card->info.link_type == QETH_LINK_TYPE_LANE_TR) ||
(card->info.link_type == QETH_LINK_TYPE_HSTR))
headroom = TR_HLEN;
else
headroom = ETH_HLEN;
+ break;
+ case QETH_HEADER_TYPE_OSN:
+ skb_len = (*hdr)->hdr.osn.pdu_length;
+ headroom = sizeof(struct qeth_hdr);
+ break;
+ default:
+ break;
}
if (!skb_len)
@@ -4177,6 +4166,33 @@
card->discipline.ccwgdriver = NULL;
}
+static void qeth_determine_capabilities(struct qeth_card *card)
+{
+ int rc;
+
+ QETH_DBF_TEXT(SETUP, 2, "detcapab");
+ rc = ccw_device_set_online(CARD_DDEV(card));
+ if (rc) {
+ QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
+ goto out;
+ }
+
+ rc = qeth_get_unitaddr(card);
+ if (rc) {
+ QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
+ goto out_offline;
+ }
+
+ rc = qdio_get_ssqd_desc(CARD_DDEV(card), &card->ssqd);
+ if (rc)
+ QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
+
+out_offline:
+ ccw_device_set_offline(CARD_DDEV(card));
+out:
+ return;
+}
+
static int qeth_core_probe_device(struct ccwgroup_device *gdev)
{
struct qeth_card *card;
@@ -4242,6 +4258,8 @@
write_lock_irqsave(&qeth_core_card_list.rwlock, flags);
list_add_tail(&card->list, &qeth_core_card_list.list);
write_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
+
+ qeth_determine_capabilities(card);
return 0;
err_card: