net: ipa: add IPA v5.0 GSI register definitions

Add the definitions of GSI register offsets and fields for IPA v5.0.
These are used for the SDX65 SoC.  Increase the maximum channel and
event ring counts supported by the driver, so those implemented by
the SDX65 are supported.
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

drivers/net/ipa/Makefile

@@ -5,7 +5,7 @@
 IPA_REG_VERSIONS	:=	3.1 3.5.1 4.2 4.5 4.7 4.9 4.11 5.0
 
 # Some IPA versions can reuse another set of GSI register definitions.
-GSI_REG_VERSIONS	:=	3.1 3.5.1 4.0 4.5 4.9 4.11
+GSI_REG_VERSIONS	:=	3.1 3.5.1 4.0 4.5 4.9 4.11 5.0
 
 IPA_DATA_VERSIONS	:=	3.1 3.5.1 4.2 4.5 4.7 4.9 4.11
 

drivers/net/ipa/gsi.h

@@ -16,8 +16,8 @@
 #include "ipa_version.h"
 
 /* Maximum number of channels and event rings supported by the driver */
-#define GSI_CHANNEL_COUNT_MAX	23
-#define GSI_EVT_RING_COUNT_MAX	24
+#define GSI_CHANNEL_COUNT_MAX	28
+#define GSI_EVT_RING_COUNT_MAX	28
 
 /* Maximum TLV FIFO size for a channel; 64 here is arbitrary (and high) */
 #define GSI_TLV_MAX		64

drivers/net/ipa/gsi_reg.c

@@ -109,6 +109,9 @@ static const struct regs *gsi_regs(struct gsi *gsi)
 	case IPA_VERSION_4_11:
 		return &gsi_regs_v4_11;
 
+	case IPA_VERSION_5_0:
+		return &gsi_regs_v5_0;
+
 	default:
 		return NULL;
 	}

drivers/net/ipa/gsi_reg.h

@@ -355,6 +355,7 @@ extern const struct regs gsi_regs_v4_0;
 extern const struct regs gsi_regs_v4_5;
 extern const struct regs gsi_regs_v4_9;
 extern const struct regs gsi_regs_v4_11;
+extern const struct regs gsi_regs_v5_0;
 
 /**
  * gsi_reg() - Return the structure describing a GSI register