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qeth: provide specific message for OSA-adapters exclusively used

PATCH New Ursula Braun 1 participant 1 message Aug 27, 2007

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Network drivers s390 s390 network drivers
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Ursula Braun

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PATCH 6/7 qeth: provide specific message for OSA-adapters exclusively used

From: Ursula Braun <[email protected]>

Exclusive usage of OSA-cards has been introduced. Even though Linux does not make use of it, qeth should be prepared to receive a bad RC for some initialization steps. A meaningful message is now given, if an OSA-device is set online, even though the OSA-adapter is already exclusively used by another host.

Signed-off-by Ursula Braun <[email protected]>

---

 drivers/s390/net/qeth_main.c |   28 +++++++++++++++++++---------
 drivers/s390/net/qeth_mpc.h  |    1 +
 2 files changed, 20 insertions(+), 9 deletions(-)
drivers/s390/net/qeth_main.c +19 -9
Index: linux-2.6-uschi/drivers/s390/net/qeth_main.c
===================================================================
@@ -1541,16 +1541,21 @@ qeth_idx_write_cb(struct qeth_channel *c
 	card = CARD_FROM_CDEV(channel->ccwdev);
 
 	if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
-		PRINT_ERR("IDX_ACTIVATE on write channel device %s: negative "
-			  "reply\n", CARD_WDEV_ID(card));
+		if (QETH_IDX_ACT_CAUSE_CODE(iob->data) == 0x19)
+			PRINT_ERR("IDX_ACTIVATE on write channel device %s: "
+				"adapter exclusively used by another host\n",
+				CARD_WDEV_ID(card));
+		else
+			PRINT_ERR("IDX_ACTIVATE on write channel device %s: "
+				"negative reply\n", CARD_WDEV_ID(card));
 		goto out;
 	}
 	memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
 	if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) {
 		PRINT_WARN("IDX_ACTIVATE on write channel device %s: "
-			   "function level mismatch "
-			   "(sent: 0x%x, received: 0x%x)\n",
-			   CARD_WDEV_ID(card), card->info.func_level, temp);
+			"function level mismatch "
+			"(sent: 0x%x, received: 0x%x)\n",
+			CARD_WDEV_ID(card), card->info.func_level, temp);
 		goto out;
 	}
 	channel->state = CH_STATE_UP;

@@ -1596,8 +1601,13 @@ qeth_idx_read_cb(struct qeth_channel *ch
 			goto out;
 	}
 	if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
-		PRINT_ERR("IDX_ACTIVATE on read channel device %s: negative "
-			  "reply\n", CARD_RDEV_ID(card));
+		if (QETH_IDX_ACT_CAUSE_CODE(iob->data) == 0x19)
+			PRINT_ERR("IDX_ACTIVATE on read channel device %s: "
+				"adapter exclusively used by another host\n",
+				CARD_RDEV_ID(card));
+		else
+			PRINT_ERR("IDX_ACTIVATE on read channel device %s: "
+				"negative reply\n", CARD_RDEV_ID(card));
 		goto out;
 	}
 

@@ -1612,8 +1622,8 @@ qeth_idx_read_cb(struct qeth_channel *ch
 	memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
 	if (temp != qeth_peer_func_level(card->info.func_level)) {
 		PRINT_WARN("IDX_ACTIVATE on read channel device %s: function "
-			   "level mismatch (sent: 0x%x, received: 0x%x)\n",
-			   CARD_RDEV_ID(card), card->info.func_level, temp);
+			"level mismatch (sent: 0x%x, received: 0x%x)\n",
+			CARD_RDEV_ID(card), card->info.func_level, temp);
 		goto out;
 	}
 	memcpy(&card->token.issuer_rm_r,
drivers/s390/net/qeth_mpc.h +1 -0
Index: linux-2.6-uschi/drivers/s390/net/qeth_mpc.h
===================================================================
@@ -565,6 +565,7 @@ extern unsigned char IDX_ACTIVATE_WRITE[
 #define QETH_IDX_ACT_QDIO_DEV_REALADDR(buffer) (buffer+0x20)
 #define QETH_IS_IDX_ACT_POS_REPLY(buffer) (((buffer)[0x08]&3)==2)
 #define QETH_IDX_REPLY_LEVEL(buffer) (buffer+0x12)
+#define QETH_IDX_ACT_CAUSE_CODE(buffer) (buffer)[0x09]
 
 #define PDU_ENCAPSULATION(buffer) \
 	(buffer + *(buffer + (*(buffer+0x0b)) + \