Adding upstream version 6.8.9.upstream/6.8.9

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

3 files changed, 81 insertions, 58 deletions

diff --git a/drivers/s390/net/ism.h b/drivers/s390/net/ism.h
index 70c5bbda0f..047fa61015 100644
--- a/drivers/s390/net/ism.h
+++ b/drivers/s390/net/ism.h
@@ -16,7 +16,6 @@
  */
 #define ISM_DMB_WORD_OFFSET	1
 #define ISM_DMB_BIT_OFFSET	(ISM_DMB_WORD_OFFSET * 32)
-#define ISM_IDENT_MASK		0x00FFFF
 
 #define ISM_REG_SBA	0x1
 #define ISM_REG_IEQ	0x2
@@ -192,12 +191,6 @@ struct ism_sba {
 #define ISM_CREATE_REQ(dmb, idx, sf, offset)		\
 	((dmb) | (idx) << 24 | (sf) << 23 | (offset))
 
-struct ism_systemeid {
-	u8	seid_string[24];
-	u8	serial_number[4];
-	u8	type[4];
-};
-
 static inline void __ism_read_cmd(struct ism_dev *ism, void *data,
 				  unsigned long offset, unsigned long len)
 {
diff --git a/drivers/s390/net/ism_drv.c b/drivers/s390/net/ism_drv.c
index 81aabbfbbe..43778b088f 100644
--- a/drivers/s390/net/ism_drv.c
+++ b/drivers/s390/net/ism_drv.c
@@ -36,6 +36,7 @@ static struct ism_client *clients[MAX_CLIENTS];	/* use an array rather than */
 						/* a list for fast mapping  */
 static u8 max_client;
 static DEFINE_MUTEX(clients_lock);
+static bool ism_v2_capable;
 struct ism_dev_list {
 	struct list_head list;
 	struct mutex mutex; /* protects ism device list */
@@ -291,13 +292,16 @@ out:
 static void ism_free_dmb(struct ism_dev *ism, struct ism_dmb *dmb)
 {
 	clear_bit(dmb->sba_idx, ism->sba_bitmap);
-	dma_free_coherent(&ism->pdev->dev, dmb->dmb_len,
-			  dmb->cpu_addr, dmb->dma_addr);
+	dma_unmap_page(&ism->pdev->dev, dmb->dma_addr, dmb->dmb_len,
+		       DMA_FROM_DEVICE);
+	folio_put(virt_to_folio(dmb->cpu_addr));
 }
 
 static int ism_alloc_dmb(struct ism_dev *ism, struct ism_dmb *dmb)
 {
+	struct folio *folio;
 	unsigned long bit;
+	int rc;
 
 	if (PAGE_ALIGN(dmb->dmb_len) > dma_get_max_seg_size(&ism->pdev->dev))
 		return -EINVAL;
@@ -314,14 +318,30 @@ static int ism_alloc_dmb(struct ism_dev *ism, struct ism_dmb *dmb)
 	    test_and_set_bit(dmb->sba_idx, ism->sba_bitmap))
 		return -EINVAL;
 
-	dmb->cpu_addr = dma_alloc_coherent(&ism->pdev->dev, dmb->dmb_len,
-					   &dmb->dma_addr,
-					   GFP_KERNEL | __GFP_NOWARN |
-					   __GFP_NOMEMALLOC | __GFP_NORETRY);
-	if (!dmb->cpu_addr)
-		clear_bit(dmb->sba_idx, ism->sba_bitmap);
+	folio = folio_alloc(GFP_KERNEL | __GFP_NOWARN | __GFP_NOMEMALLOC |
+			    __GFP_NORETRY, get_order(dmb->dmb_len));
 
-	return dmb->cpu_addr ? 0 : -ENOMEM;
+	if (!folio) {
+		rc = -ENOMEM;
+		goto out_bit;
+	}
+
+	dmb->cpu_addr = folio_address(folio);
+	dmb->dma_addr = dma_map_page(&ism->pdev->dev,
+				     virt_to_page(dmb->cpu_addr), 0,
+				     dmb->dmb_len, DMA_FROM_DEVICE);
+	if (dma_mapping_error(&ism->pdev->dev, dmb->dma_addr)) {
+		rc = -ENOMEM;
+		goto out_free;
+	}
+
+	return 0;
+
+out_free:
+	kfree(dmb->cpu_addr);
+out_bit:
+	clear_bit(dmb->sba_idx, ism->sba_bitmap);
+	return rc;
 }
 
 int ism_register_dmb(struct ism_dev *ism, struct ism_dmb *dmb,
@@ -443,32 +463,6 @@ int ism_move(struct ism_dev *ism, u64 dmb_tok, unsigned int idx, bool sf,
 }
 EXPORT_SYMBOL_GPL(ism_move);
 
-static struct ism_systemeid SYSTEM_EID = {
-	.seid_string = "IBM-SYSZ-ISMSEID00000000",
-	.serial_number = "0000",
-	.type = "0000",
-};
-
-static void ism_create_system_eid(void)
-{
-	struct cpuid id;
-	u16 ident_tail;
-	char tmp[5];
-
-	get_cpu_id(&id);
-	ident_tail = (u16)(id.ident & ISM_IDENT_MASK);
-	snprintf(tmp, 5, "%04X", ident_tail);
-	memcpy(&SYSTEM_EID.serial_number, tmp, 4);
-	snprintf(tmp, 5, "%04X", id.machine);
-	memcpy(&SYSTEM_EID.type, tmp, 4);
-}
-
-u8 *ism_get_seid(void)
-{
-	return SYSTEM_EID.seid_string;
-}
-EXPORT_SYMBOL_GPL(ism_get_seid);
-
 static void ism_handle_event(struct ism_dev *ism)
 {
 	struct ism_event *entry;
@@ -560,7 +554,9 @@ static int ism_dev_init(struct ism_dev *ism)
 
 	if (!ism_add_vlan_id(ism, ISM_RESERVED_VLANID))
 		/* hardware is V2 capable */
-		ism_create_system_eid();
+		ism_v2_capable = true;
+	else
+		ism_v2_capable = false;
 
 	mutex_lock(&ism_dev_list.mutex);
 	mutex_lock(&clients_lock);
@@ -665,8 +661,7 @@ static void ism_dev_exit(struct ism_dev *ism)
 	}
 	mutex_unlock(&clients_lock);
 
-	if (SYSTEM_EID.serial_number[0] != '0' ||
-	    SYSTEM_EID.type[0] != '0')
+	if (ism_v2_capable)
 		ism_del_vlan_id(ism, ISM_RESERVED_VLANID);
 	unregister_ieq(ism);
 	unregister_sba(ism);
@@ -743,10 +738,10 @@ static int ism_query_rgid(struct ism_dev *ism, u64 rgid, u32 vid_valid,
 	return ism_cmd(ism, &cmd);
 }
 
-static int smcd_query_rgid(struct smcd_dev *smcd, u64 rgid, u32 vid_valid,
-			   u32 vid)
+static int smcd_query_rgid(struct smcd_dev *smcd, struct smcd_gid *rgid,
+			   u32 vid_valid, u32 vid)
 {
-	return ism_query_rgid(smcd->priv, rgid, vid_valid, vid);
+	return ism_query_rgid(smcd->priv, rgid->gid, vid_valid, vid);
 }
 
 static int smcd_register_dmb(struct smcd_dev *smcd, struct smcd_dmb *dmb,
@@ -797,10 +792,11 @@ static int ism_signal_ieq(struct ism_dev *ism, u64 rgid, u32 trigger_irq,
 	return ism_cmd(ism, &cmd);
 }
 
-static int smcd_signal_ieq(struct smcd_dev *smcd, u64 rgid, u32 trigger_irq,
-			   u32 event_code, u64 info)
+static int smcd_signal_ieq(struct smcd_dev *smcd, struct smcd_gid *rgid,
+			   u32 trigger_irq, u32 event_code, u64 info)
 {
-	return ism_signal_ieq(smcd->priv, rgid, trigger_irq, event_code, info);
+	return ism_signal_ieq(smcd->priv, rgid->gid,
+			      trigger_irq, event_code, info);
 }
 
 static int smcd_move(struct smcd_dev *smcd, u64 dmb_tok, unsigned int idx,
@@ -812,8 +808,7 @@ static int smcd_move(struct smcd_dev *smcd, u64 dmb_tok, unsigned int idx,
 
 static int smcd_supports_v2(void)
 {
-	return SYSTEM_EID.serial_number[0] != '0' ||
-		SYSTEM_EID.type[0] != '0';
+	return ism_v2_capable;
 }
 
 static u64 ism_get_local_gid(struct ism_dev *ism)
@@ -821,9 +816,11 @@ static u64 ism_get_local_gid(struct ism_dev *ism)
 	return ism->local_gid;
 }
 
-static u64 smcd_get_local_gid(struct smcd_dev *smcd)
+static void smcd_get_local_gid(struct smcd_dev *smcd,
+			       struct smcd_gid *smcd_gid)
 {
-	return ism_get_local_gid(smcd->priv);
+	smcd_gid->gid = ism_get_local_gid(smcd->priv);
+	smcd_gid->gid_ext = 0;
 }
 
 static u16 ism_get_chid(struct ism_dev *ism)
@@ -857,7 +854,6 @@ static const struct smcd_ops ism_ops = {
 	.signal_event = smcd_signal_ieq,
 	.move_data = smcd_move,
 	.supports_v2 = smcd_supports_v2,
-	.get_system_eid = ism_get_seid,
 	.get_local_gid = smcd_get_local_gid,
 	.get_chid = smcd_get_chid,
 	.get_dev = smcd_get_dev,
diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c
index cf8506d0f1..601d00e09d 100644
--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -1179,6 +1179,20 @@ static int qeth_check_irb_error(struct qeth_card *card, struct ccw_device *cdev,
 	}
 }
 
+/**
+ * qeth_irq() - qeth interrupt handler
+ * @cdev: ccw device
+ * @intparm: expect pointer to iob
+ * @irb: Interruption Response Block
+ *
+ * In the good path:
+ * corresponding qeth channel is locked with last used iob as active_cmd.
+ * But this function is also called for error interrupts.
+ *
+ * Caller ensures that:
+ * Interrupts are disabled; ccw device lock is held;
+ *
+ */
 static void qeth_irq(struct ccw_device *cdev, unsigned long intparm,
 		struct irb *irb)
 {
@@ -1220,11 +1234,10 @@ static void qeth_irq(struct ccw_device *cdev, unsigned long intparm,
 		iob = (struct qeth_cmd_buffer *) (addr_t)intparm;
 	}
 
-	qeth_unlock_channel(card, channel);
-
 	rc = qeth_check_irb_error(card, cdev, irb);
 	if (rc) {
 		/* IO was terminated, free its resources. */
+		qeth_unlock_channel(card, channel);
 		if (iob)
 			qeth_cancel_cmd(iob, rc);
 		return;
@@ -1268,6 +1281,7 @@ static void qeth_irq(struct ccw_device *cdev, unsigned long intparm,
 		rc = qeth_get_problem(card, cdev, irb);
 		if (rc) {
 			card->read_or_write_problem = 1;
+			qeth_unlock_channel(card, channel);
 			if (iob)
 				qeth_cancel_cmd(iob, rc);
 			qeth_clear_ipacmd_list(card);
@@ -1276,6 +1290,26 @@ static void qeth_irq(struct ccw_device *cdev, unsigned long intparm,
 		}
 	}
 
+	if (scsw_cmd_is_valid_cc(&irb->scsw) && irb->scsw.cmd.cc == 1 && iob) {
+		/* channel command hasn't started: retry.
+		 * active_cmd is still set to last iob
+		 */
+		QETH_CARD_TEXT(card, 2, "irqcc1");
+		rc = ccw_device_start_timeout(cdev, __ccw_from_cmd(iob),
+					      (addr_t)iob, 0, 0, iob->timeout);
+		if (rc) {
+			QETH_DBF_MESSAGE(2,
+					 "ccw retry on %x failed, rc = %i\n",
+					 CARD_DEVID(card), rc);
+			QETH_CARD_TEXT_(card, 2, " err%d", rc);
+			qeth_unlock_channel(card, channel);
+			qeth_cancel_cmd(iob, rc);
+		}
+		return;
+	}
+
+	qeth_unlock_channel(card, channel);
+
 	if (iob) {
 		/* sanity check: */
 		if (irb->scsw.cmd.count > iob->length) {