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Diffstat (limited to 'drivers/s390')
-rw-r--r--drivers/s390/block/dasd.c27
-rw-r--r--drivers/s390/block/dasd_eckd.c163
-rw-r--r--drivers/s390/block/dasd_int.h15
-rw-r--r--drivers/s390/net/qeth_core.h4
-rw-r--r--drivers/s390/net/qeth_core_main.c176
-rw-r--r--drivers/s390/net/qeth_core_sys.c9
-rw-r--r--drivers/s390/net/qeth_l2_main.c1
-rw-r--r--drivers/s390/net/qeth_l3_main.c1
-rw-r--r--drivers/s390/net/qeth_l3_sys.c9
9 files changed, 323 insertions, 82 deletions
diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index 6cca72782af6..cf87eb27879f 100644
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -178,6 +178,8 @@ struct dasd_block *dasd_alloc_block(void)
(unsigned long) block);
INIT_LIST_HEAD(&block->ccw_queue);
spin_lock_init(&block->queue_lock);
+ INIT_LIST_HEAD(&block->format_list);
+ spin_lock_init(&block->format_lock);
timer_setup(&block->timer, dasd_block_timeout, 0);
spin_lock_init(&block->profile.lock);
@@ -1779,20 +1781,26 @@ void dasd_int_handler(struct ccw_device *cdev, unsigned long intparm,
if (dasd_ese_needs_format(cqr->block, irb)) {
if (rq_data_dir((struct request *)cqr->callback_data) == READ) {
- device->discipline->ese_read(cqr);
+ device->discipline->ese_read(cqr, irb);
cqr->status = DASD_CQR_SUCCESS;
cqr->stopclk = now;
dasd_device_clear_timer(device);
dasd_schedule_device_bh(device);
return;
}
- fcqr = device->discipline->ese_format(device, cqr);
+ fcqr = device->discipline->ese_format(device, cqr, irb);
if (IS_ERR(fcqr)) {
+ if (PTR_ERR(fcqr) == -EINVAL) {
+ cqr->status = DASD_CQR_ERROR;
+ return;
+ }
/*
* If we can't format now, let the request go
* one extra round. Maybe we can format later.
*/
cqr->status = DASD_CQR_QUEUED;
+ dasd_schedule_device_bh(device);
+ return;
} else {
fcqr->status = DASD_CQR_QUEUED;
cqr->status = DASD_CQR_QUEUED;
@@ -2748,11 +2756,13 @@ static void __dasd_cleanup_cqr(struct dasd_ccw_req *cqr)
{
struct request *req;
blk_status_t error = BLK_STS_OK;
+ unsigned int proc_bytes;
int status;
req = (struct request *) cqr->callback_data;
dasd_profile_end(cqr->block, cqr, req);
+ proc_bytes = cqr->proc_bytes;
status = cqr->block->base->discipline->free_cp(cqr, req);
if (status < 0)
error = errno_to_blk_status(status);
@@ -2783,7 +2793,18 @@ static void __dasd_cleanup_cqr(struct dasd_ccw_req *cqr)
blk_mq_end_request(req, error);
blk_mq_run_hw_queues(req->q, true);
} else {
- blk_mq_complete_request(req);
+ /*
+ * Partial completed requests can happen with ESE devices.
+ * During read we might have gotten a NRF error and have to
+ * complete a request partially.
+ */
+ if (proc_bytes) {
+ blk_update_request(req, BLK_STS_OK,
+ blk_rq_bytes(req) - proc_bytes);
+ blk_mq_requeue_request(req, true);
+ } else {
+ blk_mq_complete_request(req);
+ }
}
}
diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c
index a28b9ff82378..ad44d22e8859 100644
--- a/drivers/s390/block/dasd_eckd.c
+++ b/drivers/s390/block/dasd_eckd.c
@@ -207,6 +207,45 @@ static void set_ch_t(struct ch_t *geo, __u32 cyl, __u8 head)
geo->head |= head;
}
+/*
+ * calculate failing track from sense data depending if
+ * it is an EAV device or not
+ */
+static int dasd_eckd_track_from_irb(struct irb *irb, struct dasd_device *device,
+ sector_t *track)
+{
+ struct dasd_eckd_private *private = device->private;
+ u8 *sense = NULL;
+ u32 cyl;
+ u8 head;
+
+ sense = dasd_get_sense(irb);
+ if (!sense) {
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s",
+ "ESE error no sense data\n");
+ return -EINVAL;
+ }
+ if (!(sense[27] & DASD_SENSE_BIT_2)) {
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s",
+ "ESE error no valid track data\n");
+ return -EINVAL;
+ }
+
+ if (sense[27] & DASD_SENSE_BIT_3) {
+ /* enhanced addressing */
+ cyl = sense[30] << 20;
+ cyl |= (sense[31] & 0xF0) << 12;
+ cyl |= sense[28] << 8;
+ cyl |= sense[29];
+ } else {
+ cyl = sense[29] << 8;
+ cyl |= sense[30];
+ }
+ head = sense[31] & 0x0F;
+ *track = cyl * private->rdc_data.trk_per_cyl + head;
+ return 0;
+}
+
static int set_timestamp(struct ccw1 *ccw, struct DE_eckd_data *data,
struct dasd_device *device)
{
@@ -2986,6 +3025,37 @@ static int dasd_eckd_format_device(struct dasd_device *base,
0, NULL);
}
+static bool test_and_set_format_track(struct dasd_format_entry *to_format,
+ struct dasd_block *block)
+{
+ struct dasd_format_entry *format;
+ unsigned long flags;
+ bool rc = false;
+
+ spin_lock_irqsave(&block->format_lock, flags);
+ list_for_each_entry(format, &block->format_list, list) {
+ if (format->track == to_format->track) {
+ rc = true;
+ goto out;
+ }
+ }
+ list_add_tail(&to_format->list, &block->format_list);
+
+out:
+ spin_unlock_irqrestore(&block->format_lock, flags);
+ return rc;
+}
+
+static void clear_format_track(struct dasd_format_entry *format,
+ struct dasd_block *block)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&block->format_lock, flags);
+ list_del_init(&format->list);
+ spin_unlock_irqrestore(&block->format_lock, flags);
+}
+
/*
* Callback function to free ESE format requests.
*/
@@ -2993,15 +3063,19 @@ static void dasd_eckd_ese_format_cb(struct dasd_ccw_req *cqr, void *data)
{
struct dasd_device *device = cqr->startdev;
struct dasd_eckd_private *private = device->private;
+ struct dasd_format_entry *format = data;
+ clear_format_track(format, cqr->basedev->block);
private->count--;
dasd_ffree_request(cqr, device);
}
static struct dasd_ccw_req *
-dasd_eckd_ese_format(struct dasd_device *startdev, struct dasd_ccw_req *cqr)
+dasd_eckd_ese_format(struct dasd_device *startdev, struct dasd_ccw_req *cqr,
+ struct irb *irb)
{
struct dasd_eckd_private *private;
+ struct dasd_format_entry *format;
struct format_data_t fdata;
unsigned int recs_per_trk;
struct dasd_ccw_req *fcqr;
@@ -3011,23 +3085,39 @@ dasd_eckd_ese_format(struct dasd_device *startdev, struct dasd_ccw_req *cqr)
struct request *req;
sector_t first_trk;
sector_t last_trk;
+ sector_t curr_trk;
int rc;
req = cqr->callback_data;
- base = cqr->block->base;
+ block = cqr->block;
+ base = block->base;
private = base->private;
- block = base->block;
blksize = block->bp_block;
recs_per_trk = recs_per_track(&private->rdc_data, 0, blksize);
+ format = &startdev->format_entry;
first_trk = blk_rq_pos(req) >> block->s2b_shift;
sector_div(first_trk, recs_per_trk);
last_trk =
(blk_rq_pos(req) + blk_rq_sectors(req) - 1) >> block->s2b_shift;
sector_div(last_trk, recs_per_trk);
+ rc = dasd_eckd_track_from_irb(irb, base, &curr_trk);
+ if (rc)
+ return ERR_PTR(rc);
- fdata.start_unit = first_trk;
- fdata.stop_unit = last_trk;
+ if (curr_trk < first_trk || curr_trk > last_trk) {
+ DBF_DEV_EVENT(DBF_WARNING, startdev,
+ "ESE error track %llu not within range %llu - %llu\n",
+ curr_trk, first_trk, last_trk);
+ return ERR_PTR(-EINVAL);
+ }
+ format->track = curr_trk;
+ /* test if track is already in formatting by another thread */
+ if (test_and_set_format_track(format, block))
+ return ERR_PTR(-EEXIST);
+
+ fdata.start_unit = curr_trk;
+ fdata.stop_unit = curr_trk;
fdata.blksize = blksize;
fdata.intensity = private->uses_cdl ? DASD_FMT_INT_COMPAT : 0;
@@ -3044,6 +3134,7 @@ dasd_eckd_ese_format(struct dasd_device *startdev, struct dasd_ccw_req *cqr)
return fcqr;
fcqr->callback = dasd_eckd_ese_format_cb;
+ fcqr->callback_data = (void *) format;
return fcqr;
}
@@ -3051,29 +3142,87 @@ dasd_eckd_ese_format(struct dasd_device *startdev, struct dasd_ccw_req *cqr)
/*
* When data is read from an unformatted area of an ESE volume, this function
* returns zeroed data and thereby mimics a read of zero data.
+ *
+ * The first unformatted track is the one that got the NRF error, the address is
+ * encoded in the sense data.
+ *
+ * All tracks before have returned valid data and should not be touched.
+ * All tracks after the unformatted track might be formatted or not. This is
+ * currently not known, remember the processed data and return the remainder of
+ * the request to the blocklayer in __dasd_cleanup_cqr().
*/
-static void dasd_eckd_ese_read(struct dasd_ccw_req *cqr)
+static int dasd_eckd_ese_read(struct dasd_ccw_req *cqr, struct irb *irb)
{
+ struct dasd_eckd_private *private;
+ sector_t first_trk, last_trk;
+ sector_t first_blk, last_blk;
unsigned int blksize, off;
+ unsigned int recs_per_trk;
struct dasd_device *base;
struct req_iterator iter;
+ struct dasd_block *block;
+ unsigned int skip_block;
+ unsigned int blk_count;
struct request *req;
struct bio_vec bv;
+ sector_t curr_trk;
+ sector_t end_blk;
char *dst;
+ int rc;
req = (struct request *) cqr->callback_data;
base = cqr->block->base;
blksize = base->block->bp_block;
+ block = cqr->block;
+ private = base->private;
+ skip_block = 0;
+ blk_count = 0;
+
+ recs_per_trk = recs_per_track(&private->rdc_data, 0, blksize);
+ first_trk = first_blk = blk_rq_pos(req) >> block->s2b_shift;
+ sector_div(first_trk, recs_per_trk);
+ last_trk = last_blk =
+ (blk_rq_pos(req) + blk_rq_sectors(req) - 1) >> block->s2b_shift;
+ sector_div(last_trk, recs_per_trk);
+ rc = dasd_eckd_track_from_irb(irb, base, &curr_trk);
+ if (rc)
+ return rc;
+
+ /* sanity check if the current track from sense data is valid */
+ if (curr_trk < first_trk || curr_trk > last_trk) {
+ DBF_DEV_EVENT(DBF_WARNING, base,
+ "ESE error track %llu not within range %llu - %llu\n",
+ curr_trk, first_trk, last_trk);
+ return -EINVAL;
+ }
+
+ /*
+ * if not the first track got the NRF error we have to skip over valid
+ * blocks
+ */
+ if (curr_trk != first_trk)
+ skip_block = curr_trk * recs_per_trk - first_blk;
+
+ /* we have no information beyond the current track */
+ end_blk = (curr_trk + 1) * recs_per_trk;
rq_for_each_segment(bv, req, iter) {
dst = page_address(bv.bv_page) + bv.bv_offset;
for (off = 0; off < bv.bv_len; off += blksize) {
- if (dst && rq_data_dir(req) == READ) {
+ if (first_blk + blk_count >= end_blk) {
+ cqr->proc_bytes = blk_count * blksize;
+ return 0;
+ }
+ if (dst && !skip_block) {
dst += off;
memset(dst, 0, blksize);
+ } else {
+ skip_block--;
}
+ blk_count++;
}
}
+ return 0;
}
/*
diff --git a/drivers/s390/block/dasd_int.h b/drivers/s390/block/dasd_int.h
index 91c9f9586e0f..fa552f9f1666 100644
--- a/drivers/s390/block/dasd_int.h
+++ b/drivers/s390/block/dasd_int.h
@@ -187,6 +187,7 @@ struct dasd_ccw_req {
void (*callback)(struct dasd_ccw_req *, void *data);
void *callback_data;
+ unsigned int proc_bytes; /* bytes for partial completion */
};
/*
@@ -387,8 +388,9 @@ struct dasd_discipline {
int (*ext_pool_warn_thrshld)(struct dasd_device *);
int (*ext_pool_oos)(struct dasd_device *);
int (*ext_pool_exhaust)(struct dasd_device *, struct dasd_ccw_req *);
- struct dasd_ccw_req *(*ese_format)(struct dasd_device *, struct dasd_ccw_req *);
- void (*ese_read)(struct dasd_ccw_req *);
+ struct dasd_ccw_req *(*ese_format)(struct dasd_device *,
+ struct dasd_ccw_req *, struct irb *);
+ int (*ese_read)(struct dasd_ccw_req *, struct irb *);
};
extern struct dasd_discipline *dasd_diag_discipline_pointer;
@@ -474,6 +476,11 @@ struct dasd_profile {
spinlock_t lock;
};
+struct dasd_format_entry {
+ struct list_head list;
+ sector_t track;
+};
+
struct dasd_device {
/* Block device stuff. */
struct dasd_block *block;
@@ -539,6 +546,7 @@ struct dasd_device {
struct dentry *debugfs_dentry;
struct dentry *hosts_dentry;
struct dasd_profile profile;
+ struct dasd_format_entry format_entry;
};
struct dasd_block {
@@ -564,6 +572,9 @@ struct dasd_block {
struct dentry *debugfs_dentry;
struct dasd_profile profile;
+
+ struct list_head format_list;
+ spinlock_t format_lock;
};
struct dasd_attention_data {
diff --git a/drivers/s390/net/qeth_core.h b/drivers/s390/net/qeth_core.h
index 9575a627a1e1..468cada49e72 100644
--- a/drivers/s390/net/qeth_core.h
+++ b/drivers/s390/net/qeth_core.h
@@ -369,7 +369,7 @@ enum qeth_qdio_info_states {
struct qeth_buffer_pool_entry {
struct list_head list;
struct list_head init_list;
- void *elements[QDIO_MAX_ELEMENTS_PER_BUFFER];
+ struct page *elements[QDIO_MAX_ELEMENTS_PER_BUFFER];
};
struct qeth_qdio_buffer_pool {
@@ -983,7 +983,7 @@ extern const struct attribute_group qeth_device_blkt_group;
extern const struct device_type qeth_generic_devtype;
const char *qeth_get_cardname_short(struct qeth_card *);
-int qeth_realloc_buffer_pool(struct qeth_card *, int);
+int qeth_resize_buffer_pool(struct qeth_card *card, unsigned int count);
int qeth_core_load_discipline(struct qeth_card *, enum qeth_discipline_id);
void qeth_core_free_discipline(struct qeth_card *);
diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c
index 8ca85c8a01a1..6d3f2f14b414 100644
--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -65,7 +65,6 @@ static struct lock_class_key qdio_out_skb_queue_key;
static void qeth_issue_next_read_cb(struct qeth_card *card,
struct qeth_cmd_buffer *iob,
unsigned int data_length);
-static void qeth_free_buffer_pool(struct qeth_card *);
static int qeth_qdio_establish(struct qeth_card *);
static void qeth_free_qdio_queues(struct qeth_card *card);
static void qeth_notify_skbs(struct qeth_qdio_out_q *queue,
@@ -212,49 +211,121 @@ void qeth_clear_working_pool_list(struct qeth_card *card)
}
EXPORT_SYMBOL_GPL(qeth_clear_working_pool_list);
+static void qeth_free_pool_entry(struct qeth_buffer_pool_entry *entry)
+{
+ unsigned int i;
+
+ for (i = 0; i < ARRAY_SIZE(entry->elements); i++) {
+ if (entry->elements[i])
+ __free_page(entry->elements[i]);
+ }
+
+ kfree(entry);
+}
+
+static void qeth_free_buffer_pool(struct qeth_card *card)
+{
+ struct qeth_buffer_pool_entry *entry, *tmp;
+
+ list_for_each_entry_safe(entry, tmp, &card->qdio.init_pool.entry_list,
+ init_list) {
+ list_del(&entry->init_list);
+ qeth_free_pool_entry(entry);
+ }
+}
+
+static struct qeth_buffer_pool_entry *qeth_alloc_pool_entry(unsigned int pages)
+{
+ struct qeth_buffer_pool_entry *entry;
+ unsigned int i;
+
+ entry = kzalloc(sizeof(*entry), GFP_KERNEL);
+ if (!entry)
+ return NULL;
+
+ for (i = 0; i < pages; i++) {
+ entry->elements[i] = alloc_page(GFP_KERNEL);
+
+ if (!entry->elements[i]) {
+ qeth_free_pool_entry(entry);
+ return NULL;
+ }
+ }
+
+ return entry;
+}
+
static int qeth_alloc_buffer_pool(struct qeth_card *card)
{
- struct qeth_buffer_pool_entry *pool_entry;
- void *ptr;
- int i, j;
+ unsigned int buf_elements = QETH_MAX_BUFFER_ELEMENTS(card);
+ unsigned int i;
QETH_CARD_TEXT(card, 5, "alocpool");
for (i = 0; i < card->qdio.init_pool.buf_count; ++i) {
- pool_entry = kzalloc(sizeof(*pool_entry), GFP_KERNEL);
- if (!pool_entry) {
+ struct qeth_buffer_pool_entry *entry;
+
+ entry = qeth_alloc_pool_entry(buf_elements);
+ if (!entry) {
qeth_free_buffer_pool(card);
return -ENOMEM;
}
- for (j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j) {
- ptr = (void *) __get_free_page(GFP_KERNEL);
- if (!ptr) {
- while (j > 0)
- free_page((unsigned long)
- pool_entry->elements[--j]);
- kfree(pool_entry);
- qeth_free_buffer_pool(card);
- return -ENOMEM;
- }
- pool_entry->elements[j] = ptr;
- }
- list_add(&pool_entry->init_list,
- &card->qdio.init_pool.entry_list);
+
+ list_add(&entry->init_list, &card->qdio.init_pool.entry_list);
}
return 0;
}
-int qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt)
+int qeth_resize_buffer_pool(struct qeth_card *card, unsigned int count)
{
+ unsigned int buf_elements = QETH_MAX_BUFFER_ELEMENTS(card);
+ struct qeth_qdio_buffer_pool *pool = &card->qdio.init_pool;
+ struct qeth_buffer_pool_entry *entry, *tmp;
+ int delta = count - pool->buf_count;
+ LIST_HEAD(entries);
+
QETH_CARD_TEXT(card, 2, "realcbp");
- /* TODO: steel/add buffers from/to a running card's buffer pool (?) */
- qeth_clear_working_pool_list(card);
- qeth_free_buffer_pool(card);
- card->qdio.in_buf_pool.buf_count = bufcnt;
- card->qdio.init_pool.buf_count = bufcnt;
- return qeth_alloc_buffer_pool(card);
+ /* Defer until queue is allocated: */
+ if (!card->qdio.in_q)
+ goto out;
+
+ /* Remove entries from the pool: */
+ while (delta < 0) {
+ entry = list_first_entry(&pool->entry_list,
+ struct qeth_buffer_pool_entry,
+ init_list);
+ list_del(&entry->init_list);
+ qeth_free_pool_entry(entry);
+
+ delta++;
+ }
+
+ /* Allocate additional entries: */
+ while (delta > 0) {
+ entry = qeth_alloc_pool_entry(buf_elements);
+ if (!entry) {
+ list_for_each_entry_safe(entry, tmp, &entries,
+ init_list) {
+ list_del(&entry->init_list);
+ qeth_free_pool_entry(entry);
+ }
+
+ return -ENOMEM;
+ }
+
+ list_add(&entry->init_list, &entries);
+
+ delta--;
+ }
+
+ list_splice(&entries, &pool->entry_list);
+
+out:
+ card->qdio.in_buf_pool.buf_count = count;
+ pool->buf_count = count;
+ return 0;
}
-EXPORT_SYMBOL_GPL(qeth_realloc_buffer_pool);
+EXPORT_SYMBOL_GPL(qeth_resize_buffer_pool);
static void qeth_free_qdio_queue(struct qeth_qdio_q *q)
{
@@ -1170,19 +1241,6 @@ void qeth_drain_output_queues(struct qeth_card *card)
}
EXPORT_SYMBOL_GPL(qeth_drain_output_queues);
-static void qeth_free_buffer_pool(struct qeth_card *card)
-{
- struct qeth_buffer_pool_entry *pool_entry, *tmp;
- int i = 0;
- list_for_each_entry_safe(pool_entry, tmp,
- &card->qdio.init_pool.entry_list, init_list){
- for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i)
- free_page((unsigned long)pool_entry->elements[i]);
- list_del(&pool_entry->init_list);
- kfree(pool_entry);
- }
-}
-
static int qeth_osa_set_output_queues(struct qeth_card *card, bool single)
{
unsigned int count = single ? 1 : card->dev->num_tx_queues;
@@ -1204,7 +1262,6 @@ static int qeth_osa_set_output_queues(struct qeth_card *card, bool single)
if (count == 1)
dev_info(&card->gdev->dev, "Priority Queueing not supported\n");
- card->qdio.default_out_queue = single ? 0 : QETH_DEFAULT_QUEUE;
card->qdio.no_out_queues = count;
return 0;
}
@@ -2393,7 +2450,6 @@ static void qeth_free_qdio_queues(struct qeth_card *card)
return;
qeth_free_cq(card);
- cancel_delayed_work_sync(&card->buffer_reclaim_work);
for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) {
if (card->qdio.in_q->bufs[j].rx_skb)
dev_kfree_skb_any(card->qdio.in_q->bufs[j].rx_skb);
@@ -2575,7 +2631,6 @@ static struct qeth_buffer_pool_entry *qeth_find_free_buffer_pool_entry(
struct list_head *plh;
struct qeth_buffer_pool_entry *entry;
int i, free;
- struct page *page;
if (list_empty(&card->qdio.in_buf_pool.entry_list))
return NULL;
@@ -2584,7 +2639,7 @@ static struct qeth_buffer_pool_entry *qeth_find_free_buffer_pool_entry(
entry = list_entry(plh, struct qeth_buffer_pool_entry, list);
free = 1;
for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
- if (page_count(virt_to_page(entry->elements[i])) > 1) {
+ if (page_count(entry->elements[i]) > 1) {
free = 0;
break;
}
@@ -2599,15 +2654,15 @@ static struct qeth_buffer_pool_entry *qeth_find_free_buffer_pool_entry(
entry = list_entry(card->qdio.in_buf_pool.entry_list.next,
struct qeth_buffer_pool_entry, list);
for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
- if (page_count(virt_to_page(entry->elements[i])) > 1) {
- page = alloc_page(GFP_ATOMIC);
- if (!page) {
+ if (page_count(entry->elements[i]) > 1) {
+ struct page *page = alloc_page(GFP_ATOMIC);
+
+ if (!page)
return NULL;
- } else {
- free_page((unsigned long)entry->elements[i]);
- entry->elements[i] = page_address(page);
- QETH_CARD_STAT_INC(card, rx_sg_alloc_page);
- }
+
+ __free_page(entry->elements[i]);
+ entry->elements[i] = page;
+ QETH_CARD_STAT_INC(card, rx_sg_alloc_page);
}
}
list_del_init(&entry->list);
@@ -2625,12 +2680,12 @@ static int qeth_init_input_buffer(struct qeth_card *card,
ETH_HLEN +
sizeof(struct ipv6hdr));
if (!buf->rx_skb)
- return 1;
+ return -ENOMEM;
}
pool_entry = qeth_find_free_buffer_pool_entry(card);
if (!pool_entry)
- return 1;
+ return -ENOBUFS;
/*
* since the buffer is accessed only from the input_tasklet
@@ -2643,7 +2698,7 @@ static int qeth_init_input_buffer(struct qeth_card *card,
for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
buf->buffer->element[i].length = PAGE_SIZE;
buf->buffer->element[i].addr =
- virt_to_phys(pool_entry->elements[i]);
+ page_to_phys(pool_entry->elements[i]);
if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1)
buf->buffer->element[i].eflags = SBAL_EFLAGS_LAST_ENTRY;
else
@@ -2675,10 +2730,15 @@ static int qeth_init_qdio_queues(struct qeth_card *card)
/* inbound queue */
qdio_reset_buffers(card->qdio.in_q->qdio_bufs, QDIO_MAX_BUFFERS_PER_Q);
memset(&card->rx, 0, sizeof(struct qeth_rx));
+
qeth_initialize_working_pool_list(card);
/*give only as many buffers to hardware as we have buffer pool entries*/
- for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i)
- qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]);
+ for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; i++) {
+ rc = qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]);
+ if (rc)
+ return rc;
+ }
+
card->qdio.in_q->next_buf_to_init =
card->qdio.in_buf_pool.buf_count - 1;
rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0,
diff --git a/drivers/s390/net/qeth_core_sys.c b/drivers/s390/net/qeth_core_sys.c
index 2bd9993aa60b..78cae61bc924 100644
--- a/drivers/s390/net/qeth_core_sys.c
+++ b/drivers/s390/net/qeth_core_sys.c
@@ -247,8 +247,8 @@ static ssize_t qeth_dev_bufcnt_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
struct qeth_card *card = dev_get_drvdata(dev);
+ unsigned int cnt;
char *tmp;
- int cnt, old_cnt;
int rc = 0;
mutex_lock(&card->conf_mutex);
@@ -257,13 +257,12 @@ static ssize_t qeth_dev_bufcnt_store(struct device *dev,
goto out;
}
- old_cnt = card->qdio.in_buf_pool.buf_count;
cnt = simple_strtoul(buf, &tmp, 10);
cnt = (cnt < QETH_IN_BUF_COUNT_MIN) ? QETH_IN_BUF_COUNT_MIN :
((cnt > QETH_IN_BUF_COUNT_MAX) ? QETH_IN_BUF_COUNT_MAX : cnt);
- if (old_cnt != cnt) {
- rc = qeth_realloc_buffer_pool(card, cnt);
- }
+
+ rc = qeth_resize_buffer_pool(card, cnt);
+
out:
mutex_unlock(&card->conf_mutex);
return rc ? rc : count;
diff --git a/drivers/s390/net/qeth_l2_main.c b/drivers/s390/net/qeth_l2_main.c
index 9972d96820f3..8fb29371788b 100644
--- a/drivers/s390/net/qeth_l2_main.c
+++ b/drivers/s390/net/qeth_l2_main.c
@@ -284,6 +284,7 @@ static void qeth_l2_stop_card(struct qeth_card *card)
if (card->state == CARD_STATE_SOFTSETUP) {
qeth_clear_ipacmd_list(card);
qeth_drain_output_queues(card);
+ cancel_delayed_work_sync(&card->buffer_reclaim_work);
card->state = CARD_STATE_DOWN;
}
diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c
index 317d56647a4a..82f800d1d7b3 100644
--- a/drivers/s390/net/qeth_l3_main.c
+++ b/drivers/s390/net/qeth_l3_main.c
@@ -1178,6 +1178,7 @@ static void qeth_l3_stop_card(struct qeth_card *card)
qeth_l3_clear_ip_htable(card, 1);
qeth_clear_ipacmd_list(card);
qeth_drain_output_queues(card);
+ cancel_delayed_work_sync(&card->buffer_reclaim_work);
card->state = CARD_STATE_DOWN;
}
diff --git a/drivers/s390/net/qeth_l3_sys.c b/drivers/s390/net/qeth_l3_sys.c
index 29f2517d2a31..a3d1c3bdfadb 100644
--- a/drivers/s390/net/qeth_l3_sys.c
+++ b/drivers/s390/net/qeth_l3_sys.c
@@ -206,12 +206,11 @@ static ssize_t qeth_l3_dev_sniffer_store(struct device *dev,
qdio_get_ssqd_desc(CARD_DDEV(card), &card->ssqd);
if (card->ssqd.qdioac2 & CHSC_AC2_SNIFFER_AVAILABLE) {
card->options.sniffer = i;
- if (card->qdio.init_pool.buf_count !=
- QETH_IN_BUF_COUNT_MAX)
- qeth_realloc_buffer_pool(card,
- QETH_IN_BUF_COUNT_MAX);
- } else
+ qeth_resize_buffer_pool(card, QETH_IN_BUF_COUNT_MAX);
+ } else {
rc = -EPERM;
+ }
+
break;
default:
rc = -EINVAL;
generated by cgit (git 2.34.1) at 2024-05-19 07:44:06 +0000