Only a few definitions from the hardware spec are actually used in the
driver runtime, so we can copy over those few and make the rest of the spec
a private header in the driver.

Signed-off-by: Bruce Richardson <bruce.richard...@intel.com>
---
 drivers/raw/ioat/ioat_rawdev.c                |  3 ++
 .../raw/ioat/{rte_ioat_spec.h => ioat_spec.h} | 26 -----------
 drivers/raw/ioat/meson.build                  |  3 +-
 drivers/raw/ioat/rte_ioat_rawdev_fns.h        | 44 +++++++++++++++++--
 4 files changed, 44 insertions(+), 32 deletions(-)
 rename drivers/raw/ioat/{rte_ioat_spec.h => ioat_spec.h} (91%)

diff --git a/drivers/raw/ioat/ioat_rawdev.c b/drivers/raw/ioat/ioat_rawdev.c
index 856b55cb6e..bba072f2a7 100644
--- a/drivers/raw/ioat/ioat_rawdev.c
+++ b/drivers/raw/ioat/ioat_rawdev.c
@@ -4,10 +4,12 @@
 
 #include <rte_cycles.h>
 #include <rte_bus_pci.h>
+#include <rte_memzone.h>
 #include <rte_string_fns.h>
 #include <rte_rawdev_pmd.h>
 
 #include "rte_ioat_rawdev.h"
+#include "ioat_spec.h"
 
 static struct rte_pci_driver ioat_pmd_drv;
 
@@ -261,6 +263,7 @@ ioat_rawdev_create(const char *name, struct rte_pci_device 
*dev)
        ioat->rawdev = rawdev;
        ioat->mz = mz;
        ioat->regs = dev->mem_resource[0].addr;
+       ioat->doorbell = &ioat->regs->dmacount;
        ioat->ring_size = 0;
        ioat->desc_ring = NULL;
        ioat->status_addr = ioat->mz->iova +
diff --git a/drivers/raw/ioat/rte_ioat_spec.h b/drivers/raw/ioat/ioat_spec.h
similarity index 91%
rename from drivers/raw/ioat/rte_ioat_spec.h
rename to drivers/raw/ioat/ioat_spec.h
index c6e7929b2c..9645e16d41 100644
--- a/drivers/raw/ioat/rte_ioat_spec.h
+++ b/drivers/raw/ioat/ioat_spec.h
@@ -86,32 +86,6 @@ struct rte_ioat_registers {
 
 #define RTE_IOAT_CHANCMP_ALIGN                 8       /* CHANCMP address must 
be 64-bit aligned */
 
-struct rte_ioat_generic_hw_desc {
-       uint32_t size;
-       union {
-               uint32_t control_raw;
-               struct {
-                       uint32_t int_enable: 1;
-                       uint32_t src_snoop_disable: 1;
-                       uint32_t dest_snoop_disable: 1;
-                       uint32_t completion_update: 1;
-                       uint32_t fence: 1;
-                       uint32_t reserved2: 1;
-                       uint32_t src_page_break: 1;
-                       uint32_t dest_page_break: 1;
-                       uint32_t bundle: 1;
-                       uint32_t dest_dca: 1;
-                       uint32_t hint: 1;
-                       uint32_t reserved: 13;
-                       uint32_t op: 8;
-               } control;
-       } u;
-       uint64_t src_addr;
-       uint64_t dest_addr;
-       uint64_t next;
-       uint64_t op_specific[4];
-};
-
 struct rte_ioat_dma_hw_desc {
        uint32_t size;
        union {
diff --git a/drivers/raw/ioat/meson.build b/drivers/raw/ioat/meson.build
index f66e9b605e..06636f8a9f 100644
--- a/drivers/raw/ioat/meson.build
+++ b/drivers/raw/ioat/meson.build
@@ -8,5 +8,4 @@ sources = files('ioat_rawdev.c',
 deps += ['rawdev', 'bus_pci', 'mbuf']
 
 install_headers('rte_ioat_rawdev.h',
-               'rte_ioat_rawdev_fns.h',
-               'rte_ioat_spec.h')
+               'rte_ioat_rawdev_fns.h')
diff --git a/drivers/raw/ioat/rte_ioat_rawdev_fns.h 
b/drivers/raw/ioat/rte_ioat_rawdev_fns.h
index 06b4edcbb0..0cee6b1b09 100644
--- a/drivers/raw/ioat/rte_ioat_rawdev_fns.h
+++ b/drivers/raw/ioat/rte_ioat_rawdev_fns.h
@@ -5,9 +5,37 @@
 #define _RTE_IOAT_RAWDEV_FNS_H_
 
 #include <x86intrin.h>
-#include <rte_memzone.h>
 #include <rte_prefetch.h>
-#include "rte_ioat_spec.h"
+
+/**
+ * @internal
+ * Structure representing a device descriptor
+ */
+struct rte_ioat_generic_hw_desc {
+       uint32_t size;
+       union {
+               uint32_t control_raw;
+               struct {
+                       uint32_t int_enable: 1;
+                       uint32_t src_snoop_disable: 1;
+                       uint32_t dest_snoop_disable: 1;
+                       uint32_t completion_update: 1;
+                       uint32_t fence: 1;
+                       uint32_t reserved2: 1;
+                       uint32_t src_page_break: 1;
+                       uint32_t dest_page_break: 1;
+                       uint32_t bundle: 1;
+                       uint32_t dest_dca: 1;
+                       uint32_t hint: 1;
+                       uint32_t reserved: 13;
+                       uint32_t op: 8;
+               } control;
+       } u;
+       uint64_t src_addr;
+       uint64_t dest_addr;
+       uint64_t next;
+       uint64_t op_specific[4];
+};
 
 /**
  * @internal
@@ -18,7 +46,7 @@ struct rte_ioat_rawdev {
        const struct rte_memzone *mz;
        const struct rte_memzone *desc_mz;
 
-       volatile struct rte_ioat_registers *regs;
+       volatile uint16_t *doorbell;
        phys_addr_t status_addr;
        phys_addr_t ring_addr;
 
@@ -39,8 +67,16 @@ struct rte_ioat_rawdev {
 
        /* to report completions, the device will write status back here */
        volatile uint64_t status __rte_cache_aligned;
+
+       /* pointer to the register bar */
+       volatile struct rte_ioat_registers *regs;
 };
 
+#define RTE_IOAT_CHANSTS_IDLE                  0x1
+#define RTE_IOAT_CHANSTS_SUSPENDED             0x2
+#define RTE_IOAT_CHANSTS_HALTED                0x3
+#define RTE_IOAT_CHANSTS_ARMED                 0x4
+
 /**
  * Enqueue a copy operation onto the ioat device
  */
@@ -90,7 +126,7 @@ rte_ioat_do_copies(int dev_id)
        ioat->desc_ring[(ioat->next_write - 1) & (ioat->ring_size - 1)].u
                        .control.completion_update = 1;
        rte_compiler_barrier();
-       ioat->regs->dmacount = ioat->next_write;
+       *ioat->doorbell = ioat->next_write;
        ioat->started = ioat->enqueued;
 }
 
-- 
2.25.1

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