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Subject[PATCH 4.4 24/56] s390/qeth: issue STARTLAN as first IPA command
Date
4.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Julian Wiedmann <jwi@linux.vnet.ibm.com>


[ Upstream commit 1034051045d125579ab1e8fcd5a724eeb0e70149 ]

STARTLAN needs to be the first IPA command after MPC initialization
completes.
So move the qeth_send_startlan() call from the layer disciplines
into the core path, right after the MPC handshake.
While at it, replace the magic LAN OFFLINE return code
with the existing enum.

Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Reviewed-by: Thomas Richter <tmricht@linux.vnet.ibm.com>
Reviewed-by: Ursula Braun <ubraun@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/s390/net/qeth_core.h | 1 -
drivers/s390/net/qeth_core_main.c | 21 +++++++++++++++++----
drivers/s390/net/qeth_l2_main.c | 15 ---------------
drivers/s390/net/qeth_l3_main.c | 15 ---------------
4 files changed, 17 insertions(+), 35 deletions(-)

--- a/drivers/s390/net/qeth_core.h
+++ b/drivers/s390/net/qeth_core.h
@@ -909,7 +909,6 @@ void qeth_clear_thread_running_bit(struc
int qeth_core_hardsetup_card(struct qeth_card *);
void qeth_print_status_message(struct qeth_card *);
int qeth_init_qdio_queues(struct qeth_card *);
-int qeth_send_startlan(struct qeth_card *);
int qeth_send_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *,
int (*reply_cb)
(struct qeth_card *, struct qeth_reply *, unsigned long),
--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -2955,7 +2955,7 @@ int qeth_send_ipa_cmd(struct qeth_card *
}
EXPORT_SYMBOL_GPL(qeth_send_ipa_cmd);

-int qeth_send_startlan(struct qeth_card *card)
+static int qeth_send_startlan(struct qeth_card *card)
{
int rc;
struct qeth_cmd_buffer *iob;
@@ -2968,7 +2968,6 @@ int qeth_send_startlan(struct qeth_card
rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
return rc;
}
-EXPORT_SYMBOL_GPL(qeth_send_startlan);

static int qeth_default_setadapterparms_cb(struct qeth_card *card,
struct qeth_reply *reply, unsigned long data)
@@ -5080,6 +5079,20 @@ retriable:
goto out;
}

+ rc = qeth_send_startlan(card);
+ if (rc) {
+ QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
+ if (rc == IPA_RC_LAN_OFFLINE) {
+ dev_warn(&card->gdev->dev,
+ "The LAN is offline\n");
+ card->lan_online = 0;
+ } else {
+ rc = -ENODEV;
+ goto out;
+ }
+ } else
+ card->lan_online = 1;
+
card->options.ipa4.supported_funcs = 0;
card->options.ipa6.supported_funcs = 0;
card->options.adp.supported_funcs = 0;
@@ -5091,14 +5104,14 @@ retriable:
if (qeth_is_supported(card, IPA_SETADAPTERPARMS)) {
rc = qeth_query_setadapterparms(card);
if (rc < 0) {
- QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
+ QETH_DBF_TEXT_(SETUP, 2, "7err%d", rc);
goto out;
}
}
if (qeth_adp_supported(card, IPA_SETADP_SET_DIAG_ASSIST)) {
rc = qeth_query_setdiagass(card);
if (rc < 0) {
- QETH_DBF_TEXT_(SETUP, 2, "7err%d", rc);
+ QETH_DBF_TEXT_(SETUP, 2, "8err%d", rc);
goto out;
}
}
--- a/drivers/s390/net/qeth_l2_main.c
+++ b/drivers/s390/net/qeth_l2_main.c
@@ -1203,21 +1203,6 @@ static int __qeth_l2_set_online(struct c
/* softsetup */
QETH_DBF_TEXT(SETUP, 2, "softsetp");

- rc = qeth_send_startlan(card);
- if (rc) {
- QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
- if (rc == 0xe080) {
- dev_warn(&card->gdev->dev,
- "The LAN is offline\n");
- card->lan_online = 0;
- goto contin;
- }
- rc = -ENODEV;
- goto out_remove;
- } else
- card->lan_online = 1;
-
-contin:
if ((card->info.type == QETH_CARD_TYPE_OSD) ||
(card->info.type == QETH_CARD_TYPE_OSX)) {
if (qeth_l2_start_ipassists(card))
--- a/drivers/s390/net/qeth_l3_main.c
+++ b/drivers/s390/net/qeth_l3_main.c
@@ -3298,21 +3298,6 @@ static int __qeth_l3_set_online(struct c
/* softsetup */
QETH_DBF_TEXT(SETUP, 2, "softsetp");

- rc = qeth_send_startlan(card);
- if (rc) {
- QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
- if (rc == 0xe080) {
- dev_warn(&card->gdev->dev,
- "The LAN is offline\n");
- card->lan_online = 0;
- goto contin;
- }
- rc = -ENODEV;
- goto out_remove;
- } else
- card->lan_online = 1;
-
-contin:
rc = qeth_l3_setadapter_parms(card);
if (rc)
QETH_DBF_TEXT_(SETUP, 2, "2err%04x", rc);

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