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| author | Sebastian Ott <sebott@linux.vnet.ibm.com> | 2012-09-24 04:24:23 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-09-24 15:45:17 -0400 |
| commit | 725b9c0425f54450d1f376befb85dae706ea0c7a (patch) | |
| tree | 1435ec714d406c36dc78465f6a9101b0d228dfe6 /drivers/s390/net | |
| parent | ae4735166ee31e29fbf8615949dac9e56299b1fd (diff) | |
| download | linux-725b9c0425f54450d1f376befb85dae706ea0c7a.tar.bz2 | |
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>
Diffstat (limited to 'drivers/s390/net')
| -rw-r--r-- | drivers/s390/net/qeth_core_main.c | 74 |
1 files changed, 41 insertions, 33 deletions
diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c index 7a8b09612c41..03848037248c 100644 --- a/drivers/s390/net/qeth_core_main.c +++ b/drivers/s390/net/qeth_core_main.c @@ -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", |