net: ipa: define QSB limits in configuration data

Define the maximum number of reads and writes to configure for the
QSB masters used for IPA in configuration data.

We don't use these values yet; the next commit takes care of that.

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 22 insertions, 2 deletions

diff --git a/drivers/net/ipa/ipa_data.h b/drivers/net/ipa/ipa_data.h
index b476fc373f7f..d50cd5ae7714 100644
--- a/drivers/net/ipa/ipa_data.h
+++ b/drivers/net/ipa/ipa_data.h
@@ -49,6 +49,22 @@
 #define IPA_RESOURCE_GROUP_SRC_MAX	5
 #define IPA_RESOURCE_GROUP_DST_MAX	5
 
+/** enum ipa_qsb_master_id - array index for IPA QSB configuration data */
+enum ipa_qsb_master_id {
+	IPA_QSB_MASTER_DDR,
+	IPA_QSB_MASTER_PCIE,
+};
+
+/**
+ * struct ipa_qsb_data - Qualcomm System Bus configuration data
+ * @max_writes:	Maximum outstanding write requests for this master
+ * @max_reads:	Maximum outstanding read requests for this master
+ */
+struct ipa_qsb_data {
+	u8 max_writes;
+	u8 max_reads;
+};
+
 /**
  * struct gsi_channel_data - GSI channel configuration data
  * @tre_count:		number of TREs in the channel ring
@@ -285,14 +301,18 @@ struct ipa_clock_data {
 /**
  * struct ipa_data - combined IPA/GSI configuration data
  * @version:		IPA hardware version
- * @endpoint_count:	number of entries in endpoint_data array
+ * @qsb_count:		number of entries in the qsb_data array
+ * @qsb_data:		Qualcomm System Bus configuration data
+ * @endpoint_count:	number of entries in the endpoint_data array
  * @endpoint_data:	IPA endpoint/GSI channel data
  * @resource_data:	IPA resource configuration data
- * @mem_count:		number of entries in mem_data array
+ * @mem_count:		number of entries in the mem_data array
  * @mem_data:		IPA-local shared memory region data
  */
 struct ipa_data {
 	enum ipa_version version;
+	u32 qsb_count;		/* # entries in qsb_data[] */
+	const struct ipa_qsb_data *qsb_data;
 	u32 endpoint_count;	/* # entries in endpoint_data[] */
 	const struct ipa_gsi_endpoint_data *endpoint_data;
 	const struct ipa_resource_data *resource_data;