diff --git a/drivers/net/ipa/ipa_cmd.c b/drivers/net/ipa/ipa_cmd.c
index 26c3db9f52b1..de2cd86aa9e2 100644
--- a/drivers/net/ipa/ipa_cmd.c
+++ b/drivers/net/ipa/ipa_cmd.c
@@ -171,7 +171,8 @@ static void ipa_cmd_validate_build(void)
 }
 
 /* Validate a memory region holding a table */
-bool ipa_cmd_table_valid(struct ipa *ipa, const struct ipa_mem *mem, bool route)
+bool ipa_cmd_table_init_valid(struct ipa *ipa, const struct ipa_mem *mem,
+			      bool route)
 {
 	u32 offset_max = field_max(IP_FLTRT_FLAGS_NHASH_ADDR_FMASK);
 	u32 size_max = field_max(IP_FLTRT_FLAGS_NHASH_SIZE_FMASK);
@@ -197,21 +198,11 @@ bool ipa_cmd_table_valid(struct ipa *ipa, const struct ipa_mem *mem, bool route)
 		return false;
 	}
 
-	/* Entire memory range must fit within IPA-local memory */
-	if (mem->offset > ipa->mem_size ||
-	    mem->size > ipa->mem_size - mem->offset) {
-		dev_err(dev, "%s table region out of range\n", table);
-		dev_err(dev, "    (0x%04x + 0x%04x > 0x%04x)\n",
-			mem->offset, mem->size, ipa->mem_size);
-
-		return false;
-	}
-
 	return true;
 }
 
 /* Validate the memory region that holds headers */
-static bool ipa_cmd_header_valid(struct ipa *ipa)
+static bool ipa_cmd_header_init_local_valid(struct ipa *ipa)
 {
 	struct device *dev = &ipa->pdev->dev;
 	const struct ipa_mem *mem;
@@ -257,15 +248,6 @@ static bool ipa_cmd_header_valid(struct ipa *ipa)
 		return false;
 	}
 
-	/* Make sure the entire combined area fits in IPA memory */
-	if (size > ipa->mem_size || offset > ipa->mem_size - size) {
-		dev_err(dev, "header table region out of range\n");
-		dev_err(dev, "    (0x%04x + 0x%04x > 0x%04x)\n",
-			offset, size, ipa->mem_size);
-
-		return false;
-	}
-
 	return true;
 }
 
@@ -336,26 +318,11 @@ static bool ipa_cmd_register_write_valid(struct ipa *ipa)
 	return true;
 }
 
-bool ipa_cmd_data_valid(struct ipa *ipa)
-{
-	if (!ipa_cmd_header_valid(ipa))
-		return false;
-
-	if (!ipa_cmd_register_write_valid(ipa))
-		return false;
-
-	return true;
-}
-
-
 int ipa_cmd_pool_init(struct gsi_channel *channel, u32 tre_max)
 {
 	struct gsi_trans_info *trans_info = &channel->trans_info;
 	struct device *dev = channel->gsi->dev;
 
-	/* This is as good a place as any to validate build constants */
-	ipa_cmd_validate_build();
-
 	/* Command payloads are allocated one at a time, but a single
 	 * transaction can require up to the maximum supported by the
 	 * channel; treat them as if they were allocated all at once.
@@ -655,3 +622,17 @@ struct gsi_trans *ipa_cmd_trans_alloc(struct ipa *ipa, u32 tre_count)
 	return gsi_channel_trans_alloc(&ipa->gsi, endpoint->channel_id,
 				       tre_count, DMA_NONE);
 }
+
+/* Init function for immediate commands; there is no ipa_cmd_exit() */
+int ipa_cmd_init(struct ipa *ipa)
+{
+	ipa_cmd_validate_build();
+
+	if (!ipa_cmd_header_init_local_valid(ipa))
+		return -EINVAL;
+
+	if (!ipa_cmd_register_write_valid(ipa))
+		return -EINVAL;
+
+	return 0;
+}
diff --git a/drivers/net/ipa/ipa_cmd.h b/drivers/net/ipa/ipa_cmd.h
index 8e4243c1f0bb..e2cf1c2b0ef2 100644
--- a/drivers/net/ipa/ipa_cmd.h
+++ b/drivers/net/ipa/ipa_cmd.h
@@ -47,15 +47,15 @@ enum ipa_cmd_opcode {
 };
 
 /**
- * ipa_cmd_table_valid() - Validate a memory region holding a table
+ * ipa_cmd_table_init_valid() - Validate a memory region holding a table
  * @ipa:	- IPA pointer
  * @mem:	- IPA memory region descriptor
  * @route:	- Whether the region holds a route or filter table
  *
  * Return:	true if region is valid, false otherwise
  */
-bool ipa_cmd_table_valid(struct ipa *ipa, const struct ipa_mem *mem,
-			    bool route);
+bool ipa_cmd_table_init_valid(struct ipa *ipa, const struct ipa_mem *mem,
+			      bool route);
 
 /**
  * ipa_cmd_data_valid() - Validate command-realted configuration is valid
@@ -162,4 +162,14 @@ void ipa_cmd_pipeline_clear_wait(struct ipa *ipa);
  */
 struct gsi_trans *ipa_cmd_trans_alloc(struct ipa *ipa, u32 tre_count);
 
+/**
+ * ipa_cmd_init() - Initialize IPA immediate commands
+ * @ipa:	- IPA pointer
+ *
+ * Return:	0 if successful, or a negative error code
+ *
+ * There is no need for a matching ipa_cmd_exit() function.
+ */
+int ipa_cmd_init(struct ipa *ipa);
+
 #endif /* _IPA_CMD_H_ */
diff --git a/drivers/net/ipa/ipa_mem.c b/drivers/net/ipa/ipa_mem.c
index f84c6830495a..a3d2317452ac 100644
--- a/drivers/net/ipa/ipa_mem.c
+++ b/drivers/net/ipa/ipa_mem.c
@@ -366,14 +366,6 @@ int ipa_mem_config(struct ipa *ipa)
 		while (--canary_count);
 	}
 
-	/* Make sure filter and route table memory regions are valid */
-	if (!ipa_table_valid(ipa))
-		goto err_dma_free;
-
-	/* Validate memory-related properties relevant to immediate commands */
-	if (!ipa_cmd_data_valid(ipa))
-		goto err_dma_free;
-
 	/* Verify the microcontroller ring alignment (if defined) */
 	mem = ipa_mem_find(ipa, IPA_MEM_UC_EVENT_RING);
 	if (mem && mem->offset % 1024) {
@@ -625,6 +617,12 @@ int ipa_mem_init(struct ipa *ipa, const struct ipa_mem_data *mem_data)
 	ipa->mem_count = mem_data->local_count;
 	ipa->mem = mem_data->local;
 
+	/* Check the route and filter table memory regions */
+	if (!ipa_table_mem_valid(ipa, 0))
+		return -EINVAL;
+	if (!ipa_table_mem_valid(ipa, IPA_ROUTE_MODEM_COUNT))
+		return -EINVAL;
+
 	ret = dma_set_mask_and_coherent(&ipa->pdev->dev, DMA_BIT_MASK(64));
 	if (ret) {
 		dev_err(dev, "error %d setting DMA mask\n", ret);
diff --git a/drivers/net/ipa/ipa_table.c b/drivers/net/ipa/ipa_table.c
index 510ff2dc8999..58a1a9da3133 100644
--- a/drivers/net/ipa/ipa_table.c
+++ b/drivers/net/ipa/ipa_table.c
@@ -106,12 +106,6 @@
  *                 ----------------------
  */
 
-/* Assignment of route table entries to the modem and AP */
-#define IPA_ROUTE_MODEM_MIN		0
-#define IPA_ROUTE_AP_MIN		IPA_ROUTE_MODEM_COUNT
-#define IPA_ROUTE_AP_COUNT \
-		(IPA_ROUTE_COUNT_MAX - IPA_ROUTE_MODEM_COUNT)
-
 /* Filter or route rules consist of a set of 32-bit values followed by a
  * 32-bit all-zero rule list terminator.  The "zero rule" is simply an
  * all-zero rule followed by the list terminator.
@@ -140,63 +134,25 @@ static void ipa_table_validate_build(void)
 	BUILD_BUG_ON(IPA_ROUTE_COUNT_MAX > 32);
 	/* The modem must be allotted at least one route table entry */
 	BUILD_BUG_ON(!IPA_ROUTE_MODEM_COUNT);
-	/* But it can't have more than what is available */
-	BUILD_BUG_ON(IPA_ROUTE_MODEM_COUNT > IPA_ROUTE_COUNT_MAX);
-
+	/* AP must too, but we can't use more than what is available */
+	BUILD_BUG_ON(IPA_ROUTE_MODEM_COUNT >= IPA_ROUTE_COUNT_MAX);
 }
 
-static bool
-ipa_table_valid_one(struct ipa *ipa, enum ipa_mem_id mem_id, bool route)
+static const struct ipa_mem *
+ipa_table_mem(struct ipa *ipa, bool filter, bool hashed, bool ipv6)
 {
-	const struct ipa_mem *mem = ipa_mem_find(ipa, mem_id);
-	struct device *dev = &ipa->pdev->dev;
-	u32 size;
+	enum ipa_mem_id mem_id;
 
-	if (route)
-		size = IPA_ROUTE_COUNT_MAX * sizeof(__le64);
-	else
-		size = (1 + IPA_FILTER_COUNT_MAX) * sizeof(__le64);
+	mem_id = filter ? hashed ? ipv6 ? IPA_MEM_V6_FILTER_HASHED
+					: IPA_MEM_V4_FILTER_HASHED
+				 : ipv6 ? IPA_MEM_V6_FILTER
+					: IPA_MEM_V4_FILTER
+			: hashed ? ipv6 ? IPA_MEM_V6_ROUTE_HASHED
+					: IPA_MEM_V4_ROUTE_HASHED
+				 : ipv6 ? IPA_MEM_V6_ROUTE
+					: IPA_MEM_V4_ROUTE;
 
-	if (!ipa_cmd_table_valid(ipa, mem, route))
-		return false;
-
-	/* mem->size >= size is sufficient, but we'll demand more */
-	if (mem->size == size)
-		return true;
-
-	/* Hashed table regions can be zero size if hashing is not supported */
-	if (ipa_table_hash_support(ipa) && !mem->size)
-		return true;
-
-	dev_err(dev, "%s table region %u size 0x%02x, expected 0x%02x\n",
-		route ? "route" : "filter", mem_id, mem->size, size);
-
-	return false;
-}
-
-/* Verify the filter and route table memory regions are the expected size */
-bool ipa_table_valid(struct ipa *ipa)
-{
-	bool valid;
-
-	valid = ipa_table_valid_one(ipa, IPA_MEM_V4_FILTER, false);
-	valid = valid && ipa_table_valid_one(ipa, IPA_MEM_V6_FILTER, false);
-	valid = valid && ipa_table_valid_one(ipa, IPA_MEM_V4_ROUTE, true);
-	valid = valid && ipa_table_valid_one(ipa, IPA_MEM_V6_ROUTE, true);
-
-	if (!ipa_table_hash_support(ipa))
-		return valid;
-
-	valid = valid && ipa_table_valid_one(ipa, IPA_MEM_V4_FILTER_HASHED,
-					     false);
-	valid = valid && ipa_table_valid_one(ipa, IPA_MEM_V6_FILTER_HASHED,
-					     false);
-	valid = valid && ipa_table_valid_one(ipa, IPA_MEM_V4_ROUTE_HASHED,
-					     true);
-	valid = valid && ipa_table_valid_one(ipa, IPA_MEM_V6_ROUTE_HASHED,
-					     true);
-
-	return valid;
+	return ipa_mem_find(ipa, mem_id);
 }
 
 bool ipa_filter_map_valid(struct ipa *ipa, u32 filter_map)
@@ -342,11 +298,11 @@ static int ipa_route_reset(struct ipa *ipa, bool modem)
 	}
 
 	if (modem) {
-		first = IPA_ROUTE_MODEM_MIN;
+		first = 0;
 		count = IPA_ROUTE_MODEM_COUNT;
 	} else {
-		first = IPA_ROUTE_AP_MIN;
-		count = IPA_ROUTE_AP_COUNT;
+		first = IPA_ROUTE_MODEM_COUNT;
+		count = IPA_ROUTE_COUNT_MAX - IPA_ROUTE_MODEM_COUNT;
 	}
 
 	ipa_table_reset_add(trans, false, first, count, IPA_MEM_V4_ROUTE);
@@ -561,8 +517,7 @@ static void ipa_filter_config(struct ipa *ipa, bool modem)
 
 static bool ipa_route_id_modem(u32 route_id)
 {
-	return route_id >= IPA_ROUTE_MODEM_MIN &&
-		route_id <= IPA_ROUTE_MODEM_MIN + IPA_ROUTE_MODEM_COUNT - 1;
+	return route_id < IPA_ROUTE_MODEM_COUNT;
 }
 
 /**
@@ -611,8 +566,81 @@ void ipa_table_config(struct ipa *ipa)
 	ipa_route_config(ipa, true);
 }
 
-/*
- * Initialize a coherent DMA allocation containing initialized filter and
+/* Zero modem_route_count means filter table memory check */
+bool ipa_table_mem_valid(struct ipa *ipa, bool modem_route_count)
+{
+	bool hash_support = ipa_table_hash_support(ipa);
+	bool filter = !modem_route_count;
+	const struct ipa_mem *mem_hashed;
+	const struct ipa_mem *mem_ipv4;
+	const struct ipa_mem *mem_ipv6;
+	u32 count;
+
+	/* IPv4 and IPv6 non-hashed tables are expected to be defined and
+	 * have the same size.  Both must have at least two entries (and
+	 * would normally have more than that).
+	 */
+	mem_ipv4 = ipa_table_mem(ipa, filter, false, false);
+	if (!mem_ipv4)
+		return false;
+
+	mem_ipv6 = ipa_table_mem(ipa, filter, false, true);
+	if (!mem_ipv6)
+		return false;
+
+	if (mem_ipv4->size != mem_ipv6->size)
+		return false;
+
+	/* Table offset and size must fit in TABLE_INIT command fields */
+	if (!ipa_cmd_table_init_valid(ipa, mem_ipv4, !filter))
+		return false;
+
+	/* Make sure the regions are big enough */
+	count = mem_ipv4->size / sizeof(__le64);
+	if (count < 2)
+		return false;
+	if (filter) {
+		/* Filter tables must able to hold the endpoint bitmap plus
+		 * an entry for each endpoint that supports filtering
+		 */
+		if (count < 1 + hweight32(ipa->filter_map))
+			return false;
+	} else {
+		/* Routing tables must be able to hold all modem entries,
+		 * plus at least one entry for the AP.
+		 */
+		if (count < modem_route_count + 1)
+			return false;
+	}
+
+	/* If hashing is supported, hashed tables are expected to be defined,
+	 * and have the same size as non-hashed tables.  If hashing is not
+	 * supported, hashed tables are expected to have zero size (or not
+	 * be defined).
+	 */
+	mem_hashed = ipa_table_mem(ipa, filter, true, false);
+	if (hash_support) {
+		if (!mem_hashed || mem_hashed->size != mem_ipv4->size)
+			return false;
+	} else {
+		if (mem_hashed && mem_hashed->size)
+			return false;
+	}
+
+	/* Same check for IPv6 tables */
+	mem_hashed = ipa_table_mem(ipa, filter, true, true);
+	if (hash_support) {
+		if (!mem_hashed || mem_hashed->size != mem_ipv6->size)
+			return false;
+	} else {
+		if (mem_hashed && mem_hashed->size)
+			return false;
+	}
+
+	return true;
+}
+
+/* Initialize a coherent DMA allocation containing initialized filter and
  * route table data.  This is used when initializing or resetting the IPA
  * filter or route table.
  *
diff --git a/drivers/net/ipa/ipa_table.h b/drivers/net/ipa/ipa_table.h
index 395189f75d78..65d96debd391 100644
--- a/drivers/net/ipa/ipa_table.h
+++ b/drivers/net/ipa/ipa_table.h
@@ -19,14 +19,6 @@ struct ipa;
 /* The maximum number of route table entries (IPv4, IPv6; hashed or not) */
 #define IPA_ROUTE_COUNT_MAX	15
 
-/**
- * ipa_table_valid() - Validate route and filter table memory regions
- * @ipa:	IPA pointer
- *
- * Return:	true if all regions are valid, false otherwise
- */
-bool ipa_table_valid(struct ipa *ipa);
-
 /**
  * ipa_filter_map_valid() - Validate a filter table endpoint bitmap
  * @ipa:	IPA pointer
@@ -86,4 +78,11 @@ int ipa_table_init(struct ipa *ipa);
  */
 void ipa_table_exit(struct ipa *ipa);
 
+/**
+ * ipa_table_mem_valid() - Validate sizes of table memory regions
+ * @ipa:	IPA pointer
+ * @modem_route_count:	Number of modem route table entries
+ */
+bool ipa_table_mem_valid(struct ipa *ipa, bool modem_route_count);
+
 #endif /* _IPA_TABLE_H_ */