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qeth: cleanup channel path descriptor function 

Cleanup the qeth_get_channel_path_desc function and rename it
to qeth_update_from_chp_desc. No functional change.

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Acked-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Sebastian Ott 2012-09-24 04:24:23 +00:00 коммит произвёл David S. Miller
Родитель ae4735166e
Коммит 725b9c0425
1 изменённых файлов: 41 добавлений и 33 удалений
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74
drivers/s390/net/qeth_core_main.c
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@ -1257,7 +1257,30 @@ static void qeth_clean_channel(struct qeth_channel *channel)
kfree(channel->iob[cnt].data);
}
static void qeth_get_channel_path_desc(struct qeth_card *card)
static void qeth_set_single_write_queues(struct qeth_card *card)
{
if ((atomic_read(&card->qdio.state) != QETH_QDIO_UNINITIALIZED) &&
(card->qdio.no_out_queues == 4))
qeth_free_qdio_buffers(card);
card->qdio.no_out_queues = 1;
if (card->qdio.default_out_queue != 0)
dev_info(&card->gdev->dev, "Priority Queueing not supported\n");
card->qdio.default_out_queue = 0;
}
static void qeth_set_multiple_write_queues(struct qeth_card *card)
{
if ((atomic_read(&card->qdio.state) != QETH_QDIO_UNINITIALIZED) &&
(card->qdio.no_out_queues == 1)) {
qeth_free_qdio_buffers(card);
card->qdio.default_out_queue = 2;
}
card->qdio.no_out_queues = 4;
}
static void qeth_update_from_chp_desc(struct qeth_card *card)
{
struct ccw_device *ccwdev;
struct channelPath_dsc {
@ -1274,38 +1297,23 @@ static void qeth_get_channel_path_desc(struct qeth_card *card)
QETH_DBF_TEXT(SETUP, 2, "chp_desc");
ccwdev = card->data.ccwdev;
chp_dsc = (struct channelPath_dsc *)ccw_device_get_chp_desc(ccwdev, 0);
if (chp_dsc != NULL) {
if (card->info.type != QETH_CARD_TYPE_IQD) {
/* CHPP field bit 6 == 1 -> single queue */
if ((chp_dsc->chpp & 0x02) == 0x02) {
if ((atomic_read(&card->qdio.state) !=
QETH_QDIO_UNINITIALIZED) &&
(card->qdio.no_out_queues == 4))
/* change from 4 to 1 outbound queues */
qeth_free_qdio_buffers(card);
card->qdio.no_out_queues = 1;
if (card->qdio.default_out_queue != 0)
dev_info(&card->gdev->dev,
"Priority Queueing not supported\n");
card->qdio.default_out_queue = 0;
} else {
if ((atomic_read(&card->qdio.state) !=
QETH_QDIO_UNINITIALIZED) &&
(card->qdio.no_out_queues == 1)) {
/* change from 1 to 4 outbound queues */
qeth_free_qdio_buffers(card);
card->qdio.default_out_queue = 2;
}
card->qdio.no_out_queues = 4;
}
}
card->info.func_level = 0x4100 + chp_dsc->desc;
kfree(chp_dsc);
}
chp_dsc = ccw_device_get_chp_desc(ccwdev, 0);
if (!chp_dsc)
goto out;
card->info.func_level = 0x4100 + chp_dsc->desc;
if (card->info.type == QETH_CARD_TYPE_IQD)
goto out;
/* CHPP field bit 6 == 1 -> single queue */
if ((chp_dsc->chpp & 0x02) == 0x02)
qeth_set_single_write_queues(card);
else
qeth_set_multiple_write_queues(card);
out:
kfree(chp_dsc);
QETH_DBF_TEXT_(SETUP, 2, "nr:%x", card->qdio.no_out_queues);
QETH_DBF_TEXT_(SETUP, 2, "lvl:%02x", card->info.func_level);
return;
}
static void qeth_init_qdio_info(struct qeth_card *card)
@ -1473,7 +1481,7 @@ static int qeth_determine_card_type(struct qeth_card *card)
card->qdio.no_in_queues = 1;
card->info.is_multicast_different =
known_devices[i][QETH_MULTICAST_IND];
qeth_get_channel_path_desc(card);
qeth_update_from_chp_desc(card);
return 0;
}
i++;
@ -4742,7 +4750,7 @@ int qeth_core_hardsetup_card(struct qeth_card *card)
QETH_DBF_TEXT(SETUP, 2, "hrdsetup");
atomic_set(&card->force_alloc_skb, 0);
qeth_get_channel_path_desc(card);
qeth_update_from_chp_desc(card);
retry:
if (retries)
QETH_DBF_MESSAGE(2, "%s Retrying to do IDX activates.\n",