*/
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/string.h>
DEFINE_PER_CPU(char[256], qeth_dbf_txt_buf);
+static struct lock_class_key qdio_out_skb_queue_key;
+
/**
* some more definitions and declarations
*/
card->options.layer2 = 1;
else
card->options.layer2 = 0;
+ card->options.performance_stats = 1;
}
/**
"IP address reset.\n",
QETH_CARD_IFNAME(card),
card->info.chpid);
+ netif_carrier_on(card->dev);
qeth_schedule_recovery(card);
return NULL;
case IPA_CMD_MODCCID:
qeth_rebuild_skb_fake_ll_eth(card, skb, hdr);
}
-static inline void
-qeth_rebuild_skb_vlan(struct qeth_card *card, struct sk_buff *skb,
- struct qeth_hdr *hdr)
-{
-#ifdef CONFIG_QETH_VLAN
- u16 *vlan_tag;
-
- if (hdr->hdr.l3.ext_flags &
- (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) {
- vlan_tag = (u16 *) skb_push(skb, VLAN_HLEN);
- *vlan_tag = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME)?
- hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
- *(vlan_tag + 1) = skb->protocol;
- skb->protocol = __constant_htons(ETH_P_8021Q);
- }
-#endif /* CONFIG_QETH_VLAN */
-}
-
static inline __u16
qeth_layer2_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
struct qeth_hdr *hdr)
return vlan_id;
}
-static inline void
+static inline __u16
qeth_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
struct qeth_hdr *hdr)
{
+ unsigned short vlan_id = 0;
#ifdef CONFIG_QETH_IPV6
if (hdr->hdr.l3.flags & QETH_HDR_PASSTHRU) {
skb->pkt_type = PACKET_HOST;
skb->protocol = qeth_type_trans(skb, card->dev);
- return;
+ return 0;
}
#endif /* CONFIG_QETH_IPV6 */
skb->protocol = htons((hdr->hdr.l3.flags & QETH_HDR_IPV6)? ETH_P_IPV6 :
default:
skb->pkt_type = PACKET_HOST;
}
- qeth_rebuild_skb_vlan(card, skb, hdr);
+
+ if (hdr->hdr.l3.ext_flags &
+ (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) {
+ vlan_id = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME)?
+ hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
+ }
+
if (card->options.fake_ll)
qeth_rebuild_skb_fake_ll(card, skb, hdr);
else
else
skb->ip_summed = SW_CHECKSUMMING;
}
+ return vlan_id;
}
static inline void
int offset;
int rxrc;
__u16 vlan_tag = 0;
+ __u16 *vlan_addr;
/* get first element of current buffer */
element = (struct qdio_buffer_element *)&buf->buffer->element[0];
offset = 0;
-#ifdef CONFIG_QETH_PERF_STATS
- card->perf_stats.bufs_rec++;
-#endif
+ if (card->options.performance_stats)
+ card->perf_stats.bufs_rec++;
while((skb = qeth_get_next_skb(card, buf->buffer, &element,
&offset, &hdr))) {
skb->dev = card->dev;
if (hdr->hdr.l2.id == QETH_HEADER_TYPE_LAYER2)
vlan_tag = qeth_layer2_rebuild_skb(card, skb, hdr);
else if (hdr->hdr.l3.id == QETH_HEADER_TYPE_LAYER3)
- qeth_rebuild_skb(card, skb, hdr);
+ vlan_tag = qeth_rebuild_skb(card, skb, hdr);
else { /*in case of OSN*/
skb_push(skb, sizeof(struct qeth_hdr));
memcpy(skb->data, hdr, sizeof(struct qeth_hdr));
dev_kfree_skb_any(skb);
continue;
}
+ if (card->info.type == QETH_CARD_TYPE_OSN)
+ rxrc = card->osn_info.data_cb(skb);
+ else
#ifdef CONFIG_QETH_VLAN
if (vlan_tag)
- vlan_hwaccel_rx(skb, card->vlangrp, vlan_tag);
+ if (card->vlangrp)
+ vlan_hwaccel_rx(skb, card->vlangrp, vlan_tag);
+ else {
+ dev_kfree_skb_any(skb);
+ continue;
+ }
else
#endif
- if (card->info.type == QETH_CARD_TYPE_OSN)
- rxrc = card->osn_info.data_cb(skb);
- else
rxrc = netif_rx(skb);
card->dev->last_rx = jiffies;
card->stats.rx_packets++;
{
struct qeth_buffer_pool_entry *pool_entry;
int i;
-
+
pool_entry = qeth_get_buffer_pool_entry(card);
/*
* since the buffer is accessed only from the input_tasklet
* 'index') un-requeued -> this buffer is the first buffer that
* will be requeued the next time
*/
-#ifdef CONFIG_QETH_PERF_STATS
- card->perf_stats.inbound_do_qdio_cnt++;
- card->perf_stats.inbound_do_qdio_start_time = qeth_get_micros();
-#endif
+ if (card->options.performance_stats) {
+ card->perf_stats.inbound_do_qdio_cnt++;
+ card->perf_stats.inbound_do_qdio_start_time =
+ qeth_get_micros();
+ }
rc = do_QDIO(CARD_DDEV(card),
QDIO_FLAG_SYNC_INPUT | QDIO_FLAG_UNDER_INTERRUPT,
0, queue->next_buf_to_init, count, NULL);
-#ifdef CONFIG_QETH_PERF_STATS
- card->perf_stats.inbound_do_qdio_time += qeth_get_micros() -
- card->perf_stats.inbound_do_qdio_start_time;
-#endif
+ if (card->options.performance_stats)
+ card->perf_stats.inbound_do_qdio_time +=
+ qeth_get_micros() -
+ card->perf_stats.inbound_do_qdio_start_time;
if (rc){
PRINT_WARN("qeth_queue_input_buffer's do_QDIO "
"return %i (device %s).\n",
QETH_DBF_TEXT(trace, 6, "qdinput");
card = (struct qeth_card *) card_ptr;
net_dev = card->dev;
-#ifdef CONFIG_QETH_PERF_STATS
- card->perf_stats.inbound_cnt++;
- card->perf_stats.inbound_start_time = qeth_get_micros();
-#endif
+ if (card->options.performance_stats) {
+ card->perf_stats.inbound_cnt++;
+ card->perf_stats.inbound_start_time = qeth_get_micros();
+ }
if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
QETH_DBF_TEXT(trace, 1,"qdinchk");
qeth_put_buffer_pool_entry(card, buffer->pool_entry);
qeth_queue_input_buffer(card, index);
}
-#ifdef CONFIG_QETH_PERF_STATS
- card->perf_stats.inbound_time += qeth_get_micros() -
- card->perf_stats.inbound_start_time;
-#endif
+ if (card->options.performance_stats)
+ card->perf_stats.inbound_time += qeth_get_micros() -
+ card->perf_stats.inbound_start_time;
}
static inline int
}
queue->card->dev->trans_start = jiffies;
-#ifdef CONFIG_QETH_PERF_STATS
- queue->card->perf_stats.outbound_do_qdio_cnt++;
- queue->card->perf_stats.outbound_do_qdio_start_time = qeth_get_micros();
-#endif
+ if (queue->card->options.performance_stats) {
+ queue->card->perf_stats.outbound_do_qdio_cnt++;
+ queue->card->perf_stats.outbound_do_qdio_start_time =
+ qeth_get_micros();
+ }
if (under_int)
rc = do_QDIO(CARD_DDEV(queue->card),
QDIO_FLAG_SYNC_OUTPUT | QDIO_FLAG_UNDER_INTERRUPT,
else
rc = do_QDIO(CARD_DDEV(queue->card), QDIO_FLAG_SYNC_OUTPUT,
queue->queue_no, index, count, NULL);
-#ifdef CONFIG_QETH_PERF_STATS
- queue->card->perf_stats.outbound_do_qdio_time += qeth_get_micros() -
- queue->card->perf_stats.outbound_do_qdio_start_time;
-#endif
+ if (queue->card->options.performance_stats)
+ queue->card->perf_stats.outbound_do_qdio_time +=
+ qeth_get_micros() -
+ queue->card->perf_stats.outbound_do_qdio_start_time;
if (rc){
QETH_DBF_TEXT(trace, 2, "flushbuf");
QETH_DBF_TEXT_(trace, 2, " err%d", rc);
return;
}
atomic_add(count, &queue->used_buffers);
-#ifdef CONFIG_QETH_PERF_STATS
- queue->card->perf_stats.bufs_sent += count;
-#endif
+ if (queue->card->options.performance_stats)
+ queue->card->perf_stats.bufs_sent += count;
}
/*
>= QETH_HIGH_WATERMARK_PACK){
/* switch non-PACKING -> PACKING */
QETH_DBF_TEXT(trace, 6, "np->pack");
-#ifdef CONFIG_QETH_PERF_STATS
- queue->card->perf_stats.sc_dp_p++;
-#endif
+ if (queue->card->options.performance_stats)
+ queue->card->perf_stats.sc_dp_p++;
queue->do_pack = 1;
}
}
<= QETH_LOW_WATERMARK_PACK) {
/* switch PACKING -> non-PACKING */
QETH_DBF_TEXT(trace, 6, "pack->np");
-#ifdef CONFIG_QETH_PERF_STATS
- queue->card->perf_stats.sc_p_dp++;
-#endif
+ if (queue->card->options.performance_stats)
+ queue->card->perf_stats.sc_p_dp++;
queue->do_pack = 0;
/* flush packing buffers */
buffer = &queue->bufs[queue->next_buf_to_fill];
queue->next_buf_to_fill =
(queue->next_buf_to_fill + 1) %
QDIO_MAX_BUFFERS_PER_Q;
- }
+ }
}
}
return flush_count;
!atomic_read(&queue->set_pci_flags_count))
flush_cnt +=
qeth_flush_buffers_on_no_pci(queue);
-#ifdef CONFIG_QETH_PERF_STATS
- if (q_was_packing)
+ if (queue->card->options.performance_stats &&
+ q_was_packing)
queue->card->perf_stats.bufs_sent_pack +=
flush_cnt;
-#endif
if (flush_cnt)
qeth_flush_buffers(queue, 1, index, flush_cnt);
atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
return;
}
}
-#ifdef CONFIG_QETH_PERF_STATS
- card->perf_stats.outbound_handler_cnt++;
- card->perf_stats.outbound_handler_start_time = qeth_get_micros();
-#endif
+ if (card->options.performance_stats) {
+ card->perf_stats.outbound_handler_cnt++;
+ card->perf_stats.outbound_handler_start_time =
+ qeth_get_micros();
+ }
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 */
qeth_check_outbound_queue(queue);
netif_wake_queue(queue->card->dev);
-#ifdef CONFIG_QETH_PERF_STATS
- card->perf_stats.outbound_handler_time += qeth_get_micros() -
- card->perf_stats.outbound_handler_start_time;
-#endif
+ if (card->options.performance_stats)
+ card->perf_stats.outbound_handler_time += qeth_get_micros() -
+ card->perf_stats.outbound_handler_start_time;
}
static void
QETH_DBF_TEXT(setup, 2, "allcqdbf");
- if (card->qdio.state == QETH_QDIO_ALLOCATED)
+ if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED,
+ QETH_QDIO_ALLOCATED) != QETH_QDIO_UNINITIALIZED)
return 0;
card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q),
GFP_KERNEL|GFP_DMA);
if (!card->qdio.in_q)
- return - ENOMEM;
+ goto out_nomem;
QETH_DBF_TEXT(setup, 2, "inq");
QETH_DBF_HEX(setup, 2, &card->qdio.in_q, sizeof(void *));
memset(card->qdio.in_q, 0, sizeof(struct qeth_qdio_q));
card->qdio.in_q->bufs[i].buffer =
&card->qdio.in_q->qdio_bufs[i];
/* inbound buffer pool */
- if (qeth_alloc_buffer_pool(card)){
- kfree(card->qdio.in_q);
- return -ENOMEM;
- }
+ if (qeth_alloc_buffer_pool(card))
+ goto out_freeinq;
/* outbound */
card->qdio.out_qs =
kmalloc(card->qdio.no_out_queues *
sizeof(struct qeth_qdio_out_q *), GFP_KERNEL);
- if (!card->qdio.out_qs){
- qeth_free_buffer_pool(card);
- return -ENOMEM;
- }
- for (i = 0; i < card->qdio.no_out_queues; ++i){
+ if (!card->qdio.out_qs)
+ goto out_freepool;
+ for (i = 0; i < card->qdio.no_out_queues; ++i) {
card->qdio.out_qs[i] = kmalloc(sizeof(struct qeth_qdio_out_q),
GFP_KERNEL|GFP_DMA);
- if (!card->qdio.out_qs[i]){
- while (i > 0)
- kfree(card->qdio.out_qs[--i]);
- kfree(card->qdio.out_qs);
- return -ENOMEM;
- }
+ if (!card->qdio.out_qs[i])
+ goto out_freeoutq;
QETH_DBF_TEXT_(setup, 2, "outq %i", i);
QETH_DBF_HEX(setup, 2, &card->qdio.out_qs[i], sizeof(void *));
memset(card->qdio.out_qs[i], 0, sizeof(struct qeth_qdio_out_q));
&card->qdio.out_qs[i]->qdio_bufs[j];
skb_queue_head_init(&card->qdio.out_qs[i]->bufs[j].
skb_list);
+ lockdep_set_class(
+ &card->qdio.out_qs[i]->bufs[j].skb_list.lock,
+ &qdio_out_skb_queue_key);
INIT_LIST_HEAD(&card->qdio.out_qs[i]->bufs[j].ctx_list);
}
}
- card->qdio.state = QETH_QDIO_ALLOCATED;
return 0;
+
+out_freeoutq:
+ while (i > 0)
+ kfree(card->qdio.out_qs[--i]);
+ kfree(card->qdio.out_qs);
+out_freepool:
+ qeth_free_buffer_pool(card);
+out_freeinq:
+ kfree(card->qdio.in_q);
+out_nomem:
+ atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
+ return -ENOMEM;
}
static void
int i, j;
QETH_DBF_TEXT(trace, 2, "freeqdbf");
- if (card->qdio.state == QETH_QDIO_UNINITIALIZED)
+ if (atomic_swap(&card->qdio.state, QETH_QDIO_UNINITIALIZED) ==
+ QETH_QDIO_UNINITIALIZED)
return;
kfree(card->qdio.in_q);
/* inbound buffer pool */
kfree(card->qdio.out_qs[i]);
}
kfree(card->qdio.out_qs);
- card->qdio.state = QETH_QDIO_UNINITIALIZED;
}
static void
qeth_init_qdio_info(struct qeth_card *card)
{
QETH_DBF_TEXT(setup, 4, "intqdinf");
- card->qdio.state = QETH_QDIO_UNINITIALIZED;
+ atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
/* inbound */
card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT;
struct qdio_buffer **in_sbal_ptrs;
struct qdio_buffer **out_sbal_ptrs;
int i, j, k;
- int rc;
+ int rc = 0;
QETH_DBF_TEXT(setup, 2, "qdioest");
init_data.input_sbal_addr_array = (void **) in_sbal_ptrs;
init_data.output_sbal_addr_array = (void **) out_sbal_ptrs;
- if (!(rc = qdio_initialize(&init_data)))
- card->qdio.state = QETH_QDIO_ESTABLISHED;
+ if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ALLOCATED,
+ QETH_QDIO_ESTABLISHED) == QETH_QDIO_ALLOCATED)
+ if ((rc = qdio_initialize(&init_data)))
+ atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
kfree(out_sbal_ptrs);
kfree(in_sbal_ptrs);
int rc = 0;
QETH_DBF_TEXT(trace,3,"qdioclr");
- if (card->qdio.state == QETH_QDIO_ESTABLISHED){
+ switch (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ESTABLISHED,
+ QETH_QDIO_CLEANING)) {
+ case QETH_QDIO_ESTABLISHED:
if ((rc = qdio_cleanup(CARD_DDEV(card),
- (card->info.type == QETH_CARD_TYPE_IQD) ?
- QDIO_FLAG_CLEANUP_USING_HALT :
- QDIO_FLAG_CLEANUP_USING_CLEAR)))
+ (card->info.type == QETH_CARD_TYPE_IQD) ?
+ QDIO_FLAG_CLEANUP_USING_HALT :
+ QDIO_FLAG_CLEANUP_USING_CLEAR)))
QETH_DBF_TEXT_(trace, 3, "1err%d", rc);
- card->qdio.state = QETH_QDIO_ALLOCATED;
+ atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
+ break;
+ case QETH_QDIO_CLEANING:
+ return rc;
+ default:
+ break;
}
if ((rc = qeth_clear_halt_card(card, use_halt)))
QETH_DBF_TEXT_(trace, 3, "2err%d", rc);
/* return OK; otherwise ksoftirqd goes to 100% */
return NETDEV_TX_OK;
}
-#ifdef CONFIG_QETH_PERF_STATS
- card->perf_stats.outbound_cnt++;
- card->perf_stats.outbound_start_time = qeth_get_micros();
-#endif
+ if (card->options.performance_stats) {
+ card->perf_stats.outbound_cnt++;
+ card->perf_stats.outbound_start_time = qeth_get_micros();
+ }
netif_stop_queue(dev);
if ((rc = qeth_send_packet(card, skb))) {
if (rc == -EBUSY) {
}
}
netif_wake_queue(dev);
-#ifdef CONFIG_QETH_PERF_STATS
- card->perf_stats.outbound_time += qeth_get_micros() -
- card->perf_stats.outbound_start_time;
-#endif
+ if (card->options.performance_stats)
+ card->perf_stats.outbound_time += qeth_get_micros() -
+ card->perf_stats.outbound_start_time;
return rc;
}
}
}
-static inline int
-qeth_prepare_skb(struct qeth_card *card, struct sk_buff **skb,
- struct qeth_hdr **hdr, int ipv)
+static inline struct qeth_hdr *
+__qeth_prepare_skb(struct qeth_card *card, struct sk_buff *skb, int ipv)
{
- int rc = 0;
#ifdef CONFIG_QETH_VLAN
u16 *tag;
-#endif
-
- QETH_DBF_TEXT(trace, 6, "prepskb");
- if (card->info.type == QETH_CARD_TYPE_OSN) {
- *hdr = (struct qeth_hdr *)(*skb)->data;
- return rc;
- }
- rc = qeth_realloc_headroom(card, skb, sizeof(struct qeth_hdr));
- if (rc)
- return rc;
-#ifdef CONFIG_QETH_VLAN
- if (card->vlangrp && vlan_tx_tag_present(*skb) &&
+ if (card->vlangrp && vlan_tx_tag_present(skb) &&
((ipv == 6) || card->options.layer2) ) {
/*
* Move the mac addresses (6 bytes src, 6 bytes dest)
* to the beginning of the new header. We are using three
* memcpys instead of one memmove to save cycles.
*/
- skb_push(*skb, VLAN_HLEN);
- memcpy((*skb)->data, (*skb)->data + 4, 4);
- memcpy((*skb)->data + 4, (*skb)->data + 8, 4);
- memcpy((*skb)->data + 8, (*skb)->data + 12, 4);
- tag = (u16 *)((*skb)->data + 12);
+ skb_push(skb, VLAN_HLEN);
+ memcpy(skb->data, skb->data + 4, 4);
+ memcpy(skb->data + 4, skb->data + 8, 4);
+ memcpy(skb->data + 8, skb->data + 12, 4);
+ tag = (u16 *)(skb->data + 12);
/*
* first two bytes = ETH_P_8021Q (0x8100)
* second two bytes = VLANID
*/
*tag = __constant_htons(ETH_P_8021Q);
- *(tag + 1) = htons(vlan_tx_tag_get(*skb));
+ *(tag + 1) = htons(vlan_tx_tag_get(skb));
}
#endif
- *hdr = (struct qeth_hdr *)
- qeth_push_skb(card, skb, sizeof(struct qeth_hdr));
- if (*hdr == NULL)
- return -EINVAL;
- return 0;
+ return ((struct qeth_hdr *)
+ qeth_push_skb(card, skb, sizeof(struct qeth_hdr)));
+}
+
+static inline void
+__qeth_free_new_skb(struct sk_buff *orig_skb, struct sk_buff *new_skb)
+{
+ if (orig_skb != new_skb)
+ dev_kfree_skb_any(new_skb);
+}
+
+static inline struct sk_buff *
+qeth_prepare_skb(struct qeth_card *card, struct sk_buff *skb,
+ struct qeth_hdr **hdr, int ipv)
+{
+ struct sk_buff *new_skb;
+
+ QETH_DBF_TEXT(trace, 6, "prepskb");
+
+ new_skb = qeth_realloc_headroom(card, skb, sizeof(struct qeth_hdr));
+ if (new_skb == NULL)
+ return NULL;
+ *hdr = __qeth_prepare_skb(card, new_skb, ipv);
+ if (*hdr == NULL) {
+ __qeth_free_new_skb(skb, new_skb);
+ return NULL;
+ }
+ return new_skb;
}
static inline u8
flush_cnt = 1;
} else {
QETH_DBF_TEXT(trace, 6, "fillbfpa");
-#ifdef CONFIG_QETH_PERF_STATS
- queue->card->perf_stats.skbs_sent_pack++;
-#endif
+ if (queue->card->options.performance_stats)
+ queue->card->perf_stats.skbs_sent_pack++;
if (buf->next_element_to_fill >=
QETH_MAX_BUFFER_ELEMENTS(queue->card)) {
/*
* check if buffer is empty to make sure that we do not 'overtake'
* ourselves and try to fill a buffer that is already primed
*/
- if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) {
- card->stats.tx_dropped++;
- atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
- return -EBUSY;
- }
+ 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) %
QDIO_MAX_BUFFERS_PER_Q;
else {
buffers_needed = qeth_eddp_check_buffers_for_context(queue,ctx);
- if (buffers_needed < 0) {
- card->stats.tx_dropped++;
- atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
- return -EBUSY;
- }
+ if (buffers_needed < 0)
+ goto out;
queue->next_buf_to_fill =
(queue->next_buf_to_fill + buffers_needed) %
QDIO_MAX_BUFFERS_PER_Q;
qeth_flush_buffers(queue, 0, index, flush_cnt);
}
return 0;
+out:
+ atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
+ return -EBUSY;
}
static inline int
* check if buffer is empty to make sure that we do not 'overtake'
* ourselves and try to fill a buffer that is already primed
*/
- if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY){
- card->stats.tx_dropped++;
+ if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) {
atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
return -EBUSY;
}
* again */
if (atomic_read(&buffer->state) !=
QETH_QDIO_BUF_EMPTY){
- card->stats.tx_dropped++;
qeth_flush_buffers(queue, 0, start_index, flush_count);
atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
return -EBUSY;
* free buffers) to handle eddp context */
if (qeth_eddp_check_buffers_for_context(queue,ctx) < 0){
printk("eddp tx_dropped 1\n");
- card->stats.tx_dropped++;
rc = -EBUSY;
goto out;
}
tmp = qeth_eddp_fill_buffer(queue,ctx,queue->next_buf_to_fill);
if (tmp < 0) {
printk("eddp tx_dropped 2\n");
- card->stats.tx_dropped++;
rc = - EBUSY;
goto out;
}
qeth_flush_buffers(queue, 0, start_index, flush_count);
}
/* at this point the queue is UNLOCKED again */
-#ifdef CONFIG_QETH_PERF_STATS
- if (do_pack)
+ if (queue->card->options.performance_stats && do_pack)
queue->card->perf_stats.bufs_sent_pack += flush_count;
-#endif /* CONFIG_QETH_PERF_STATS */
return rc;
}
{
int elements_needed = 0;
- if (skb_shinfo(skb)->nr_frags > 0) {
+ if (skb_shinfo(skb)->nr_frags > 0)
elements_needed = (skb_shinfo(skb)->nr_frags + 1);
- }
- if (elements_needed == 0 )
+ if (elements_needed == 0)
elements_needed = 1 + (((((unsigned long) hdr) % PAGE_SIZE)
+ skb->len) >> PAGE_SHIFT);
if ((elements_needed + elems) > QETH_MAX_BUFFER_ELEMENTS(card)){
- PRINT_ERR("qeth_do_send_packet: invalid size of "
- "IP packet (Number=%d / Length=%d). Discarded.\n",
+ PRINT_ERR("Invalid size of IP packet "
+ "(Number=%d / Length=%d). Discarded.\n",
(elements_needed+elems), skb->len);
return 0;
}
return elements_needed;
}
+
static inline int
qeth_send_packet(struct qeth_card *card, struct sk_buff *skb)
{
struct qeth_eddp_context *ctx = NULL;
int tx_bytes = skb->len;
unsigned short nr_frags = skb_shinfo(skb)->nr_frags;
- unsigned short tso_size = skb_shinfo(skb)->tso_size;
+ unsigned short tso_size = skb_shinfo(skb)->gso_size;
+ struct sk_buff *new_skb, *new_skb2;
int rc;
QETH_DBF_TEXT(trace, 6, "sendpkt");
+ new_skb = skb;
+ if ((card->info.type == QETH_CARD_TYPE_OSN) &&
+ (skb->protocol == htons(ETH_P_IPV6)))
+ return -EPERM;
+ cast_type = qeth_get_cast_type(card, skb);
+ if ((cast_type == RTN_BROADCAST) &&
+ (card->info.broadcast_capable == 0))
+ return -EPERM;
+ queue = card->qdio.out_qs
+ [qeth_get_priority_queue(card, skb, ipv, cast_type)];
if (!card->options.layer2) {
ipv = qeth_get_ip_version(skb);
if ((card->dev->hard_header == qeth_fake_header) && ipv) {
- if ((skb = qeth_pskb_unshare(skb,GFP_ATOMIC)) == NULL) {
- card->stats.tx_dropped++;
- dev_kfree_skb_irq(skb);
- return 0;
- }
+ new_skb = qeth_pskb_unshare(skb, GFP_ATOMIC);
+ if (!new_skb)
+ return -ENOMEM;
if(card->dev->type == ARPHRD_IEEE802_TR){
- skb_pull(skb, QETH_FAKE_LL_LEN_TR);
+ skb_pull(new_skb, QETH_FAKE_LL_LEN_TR);
} else {
- skb_pull(skb, QETH_FAKE_LL_LEN_ETH);
+ skb_pull(new_skb, QETH_FAKE_LL_LEN_ETH);
}
}
}
- if ((card->info.type == QETH_CARD_TYPE_OSN) &&
- (skb->protocol == htons(ETH_P_IPV6))) {
- dev_kfree_skb_any(skb);
- return 0;
- }
- cast_type = qeth_get_cast_type(card, skb);
- if ((cast_type == RTN_BROADCAST) &&
- (card->info.broadcast_capable == 0)){
- card->stats.tx_dropped++;
- card->stats.tx_errors++;
- dev_kfree_skb_any(skb);
- return NETDEV_TX_OK;
- }
- queue = card->qdio.out_qs
- [qeth_get_priority_queue(card, skb, ipv, cast_type)];
-
- if (skb_shinfo(skb)->tso_size)
+ if (skb_is_gso(skb))
large_send = card->options.large_send;
-
- /*are we able to do TSO ? If so ,prepare and send it from here */
+ /* check on OSN device*/
+ if (card->info.type == QETH_CARD_TYPE_OSN)
+ hdr = (struct qeth_hdr *)new_skb->data;
+ /*are we able to do TSO ? */
if ((large_send == QETH_LARGE_SEND_TSO) &&
(cast_type == RTN_UNSPEC)) {
- rc = qeth_tso_prepare_packet(card, skb, ipv, cast_type);
+ rc = qeth_tso_prepare_packet(card, new_skb, ipv, cast_type);
if (rc) {
- card->stats.tx_dropped++;
- card->stats.tx_errors++;
- dev_kfree_skb_any(skb);
- return NETDEV_TX_OK;
+ __qeth_free_new_skb(skb, new_skb);
+ return rc;
}
elements_needed++;
- } else {
- if ((rc = qeth_prepare_skb(card, &skb, &hdr, ipv))) {
- QETH_DBF_TEXT_(trace, 4, "pskbe%d", rc);
- return rc;
+ } else if (card->info.type != QETH_CARD_TYPE_OSN) {
+ new_skb2 = qeth_prepare_skb(card, new_skb, &hdr, ipv);
+ if (!new_skb2) {
+ __qeth_free_new_skb(skb, new_skb);
+ return -EINVAL;
}
- if (card->info.type != QETH_CARD_TYPE_OSN)
- qeth_fill_header(card, hdr, skb, ipv, cast_type);
+ if (new_skb != skb)
+ __qeth_free_new_skb(new_skb2, new_skb);
+ new_skb = new_skb2;
+ qeth_fill_header(card, hdr, new_skb, ipv, cast_type);
}
-
if (large_send == QETH_LARGE_SEND_EDDP) {
- ctx = qeth_eddp_create_context(card, skb, hdr);
+ ctx = qeth_eddp_create_context(card, new_skb, hdr);
if (ctx == NULL) {
+ __qeth_free_new_skb(skb, new_skb);
PRINT_WARN("could not create eddp context\n");
return -EINVAL;
}
} else {
- int elems = qeth_get_elements_no(card,(void*) hdr, skb,
+ int elems = qeth_get_elements_no(card,(void*) hdr, new_skb,
elements_needed);
- if (!elems)
+ if (!elems) {
+ __qeth_free_new_skb(skb, new_skb);
return -EINVAL;
+ }
elements_needed += elems;
}
if (card->info.type != QETH_CARD_TYPE_IQD)
- rc = qeth_do_send_packet(card, queue, skb, hdr,
+ rc = qeth_do_send_packet(card, queue, new_skb, hdr,
elements_needed, ctx);
else
- rc = qeth_do_send_packet_fast(card, queue, skb, hdr,
+ rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr,
elements_needed, ctx);
- if (!rc){
+ if (!rc) {
card->stats.tx_packets++;
card->stats.tx_bytes += tx_bytes;
-#ifdef CONFIG_QETH_PERF_STATS
- if (tso_size &&
- !(large_send == QETH_LARGE_SEND_NO)) {
- card->perf_stats.large_send_bytes += tx_bytes;
- card->perf_stats.large_send_cnt++;
- }
- if (nr_frags > 0){
- card->perf_stats.sg_skbs_sent++;
- /* nr_frags + skb->data */
- card->perf_stats.sg_frags_sent +=
- nr_frags + 1;
+ if (new_skb != skb)
+ dev_kfree_skb_any(skb);
+ if (card->options.performance_stats) {
+ if (tso_size &&
+ !(large_send == QETH_LARGE_SEND_NO)) {
+ card->perf_stats.large_send_bytes += tx_bytes;
+ card->perf_stats.large_send_cnt++;
+ }
+ if (nr_frags > 0) {
+ card->perf_stats.sg_skbs_sent++;
+ /* nr_frags + skb->data */
+ card->perf_stats.sg_frags_sent +=
+ nr_frags + 1;
+ }
}
-#endif /* CONFIG_QETH_PERF_STATS */
+ } else {
+ card->stats.tx_dropped++;
+ __qeth_free_new_skb(skb, new_skb);
}
if (ctx != NULL) {
/* drop creator's reference */
qeth_eddp_put_context(ctx);
/* free skb; it's not referenced by a buffer */
- if (rc == 0)
- dev_kfree_skb_any(skb);
-
+ if (!rc)
+ dev_kfree_skb_any(new_skb);
}
return rc;
}
qeth_get_setassparms_cmd(struct qeth_card *, enum qeth_ipa_funcs,
__u16, __u16, enum qeth_prot_versions);
static int
-qeth_arp_query(struct qeth_card *card, char *udata)
+qeth_arp_query(struct qeth_card *card, char __user *udata)
{
struct qeth_cmd_buffer *iob;
struct qeth_arp_query_info qinfo = {0, };
* function to send SNMP commands to OSA-E card
*/
static int
-qeth_snmp_command(struct qeth_card *card, char *udata)
+qeth_snmp_command(struct qeth_card *card, char __user *udata)
{
struct qeth_cmd_buffer *iob;
struct qeth_ipa_cmd *cmd;
struct sk_buff_head tmp_list;
skb_queue_head_init(&tmp_list);
+ lockdep_set_class(&tmp_list.lock, &qdio_out_skb_queue_key);
for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
while ((skb = skb_dequeue(&buf->skb_list))){
if (vlan_tx_tag_present(skb) &&
QETH_DBF_TEXT(trace,3,"setrtg6");
#ifdef CONFIG_QETH_IPV6
+ if (!qeth_is_supported(card, IPA_IPV6))
+ return 0;
qeth_correct_routing_type(card, &card->options.route6.type,
QETH_PROT_IPV6);
QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
goto out_remove;
}
- card->state = CARD_STATE_SOFTSETUP;
if ((rc = qeth_init_qdio_queues(card))){
QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
goto out_remove;
}
+ card->state = CARD_STATE_SOFTSETUP;
netif_carrier_on(card->dev);
qeth_set_allowed_threads(card, 0xffffffff, 0);
}
static struct ccw_device_id qeth_ids[] = {
- {CCW_DEVICE(0x1731, 0x01), driver_info:QETH_CARD_TYPE_OSAE},
- {CCW_DEVICE(0x1731, 0x05), driver_info:QETH_CARD_TYPE_IQD},
- {CCW_DEVICE(0x1731, 0x06), driver_info:QETH_CARD_TYPE_OSN},
+ {CCW_DEVICE(0x1731, 0x01), .driver_info = QETH_CARD_TYPE_OSAE},
+ {CCW_DEVICE(0x1731, 0x05), .driver_info = QETH_CARD_TYPE_IQD},
+ {CCW_DEVICE(0x1731, 0x06), .driver_info = QETH_CARD_TYPE_OSN},
{},
};
MODULE_DEVICE_TABLE(ccw, qeth_ids);
static struct notifier_block qeth_ip_notifier = {
qeth_ip_event,
- 0
+ NULL,
};
#ifdef CONFIG_QETH_IPV6
static struct notifier_block qeth_ip6_notifier = {
qeth_ip6_event,
- 0
+ NULL,
};
#endif
static int
qeth_reboot_event(struct notifier_block *this, unsigned long event, void *ptr)
{
+ int ret;
- driver_for_each_device(&qeth_ccwgroup_driver.driver, NULL, NULL,
- __qeth_reboot_event_card);
- return NOTIFY_DONE;
+ ret = driver_for_each_device(&qeth_ccwgroup_driver.driver, NULL, NULL,
+ __qeth_reboot_event_card);
+ return ret ? NOTIFY_BAD : NOTIFY_DONE;
}
static struct notifier_block qeth_reboot_notifier = {
qeth_reboot_event,
- 0
+ NULL,
};
static int
qeth_ipv6_init(void)
{
qeth_old_arp_constructor = arp_tbl.constructor;
- write_lock(&arp_tbl.lock);
+ write_lock_bh(&arp_tbl.lock);
arp_tbl.constructor = qeth_arp_constructor;
- write_unlock(&arp_tbl.lock);
+ write_unlock_bh(&arp_tbl.lock);
arp_direct_ops = (struct neigh_ops*)
kmalloc(sizeof(struct neigh_ops), GFP_KERNEL);
static void
qeth_ipv6_uninit(void)
{
- write_lock(&arp_tbl.lock);
+ write_lock_bh(&arp_tbl.lock);
arp_tbl.constructor = qeth_old_arp_constructor;
- write_unlock(&arp_tbl.lock);
+ write_unlock_bh(&arp_tbl.lock);
kfree(arp_direct_ops);
}
#endif /* CONFIG_QETH_IPV6 */
static void
qeth_sysfs_unregister(void)
{
+ s390_root_dev_unregister(qeth_root_dev);
qeth_remove_driver_attributes();
ccw_driver_unregister(&qeth_ccw_driver);
ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
- s390_root_dev_unregister(qeth_root_dev);
}
+
/**
* register qeth at sysfs
*/
static int
qeth_sysfs_register(void)
{
- int rc=0;
+ int rc;
rc = ccwgroup_driver_register(&qeth_ccwgroup_driver);
if (rc)
- return rc;
+ goto out;
+
rc = ccw_driver_register(&qeth_ccw_driver);
if (rc)
- return rc;
+ goto out_ccw_driver;
+
rc = qeth_create_driver_attributes();
if (rc)
- return rc;
+ goto out_qeth_attr;
+
qeth_root_dev = s390_root_dev_register("qeth");
- if (IS_ERR(qeth_root_dev)) {
- rc = PTR_ERR(qeth_root_dev);
- return rc;
- }
- return 0;
+ rc = IS_ERR(qeth_root_dev) ? PTR_ERR(qeth_root_dev) : 0;
+ if (!rc)
+ goto out;
+
+ qeth_remove_driver_attributes();
+out_qeth_attr:
+ ccw_driver_unregister(&qeth_ccw_driver);
+out_ccw_driver:
+ ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
+out:
+ return rc;
}
/***
static int __init
qeth_init(void)
{
- int rc=0;
+ int rc;
PRINT_INFO("loading %s\n", version);
spin_lock_init(&qeth_notify_lock);
rwlock_init(&qeth_card_list.rwlock);
- if (qeth_register_dbf_views())
+ rc = qeth_register_dbf_views();
+ if (rc)
goto out_err;
- if (qeth_sysfs_register())
- goto out_sysfs;
+
+ rc = qeth_sysfs_register();
+ if (rc)
+ goto out_dbf;
#ifdef CONFIG_QETH_IPV6
- if (qeth_ipv6_init()) {
- PRINT_ERR("Out of memory during ipv6 init.\n");
+ rc = qeth_ipv6_init();
+ if (rc) {
+ PRINT_ERR("Out of memory during ipv6 init code = %d\n", rc);
goto out_sysfs;
}
#endif /* QETH_IPV6 */
- if (qeth_register_notifiers())
+ rc = qeth_register_notifiers();
+ if (rc)
goto out_ipv6;
- if (qeth_create_procfs_entries())
+ rc = qeth_create_procfs_entries();
+ if (rc)
goto out_notifiers;
return rc;
out_ipv6:
#ifdef CONFIG_QETH_IPV6
qeth_ipv6_uninit();
-#endif /* QETH_IPV6 */
out_sysfs:
+#endif /* QETH_IPV6 */
qeth_sysfs_unregister();
+out_dbf:
qeth_unregister_dbf_views();
out_err:
- PRINT_ERR("Initialization failed");
+ PRINT_ERR("Initialization failed with code %d\n", rc);
return rc;
}
git.openpandora.org / pandora-kernel.git / blobdiff