dmanegine: ioatdma: remove function ptrs in ioatdma_device

Since we are a "single" device driver now we no longer require the function
pointers in ioatdma_device. Remove.

Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Acked-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

3 files changed, 13 insertions, 32 deletions

diff --git a/drivers/dma/ioat/dma.c b/drivers/dma/ioat/dma.c
index 2031bb4ad536..7435585dbbd6 100644
--- a/drivers/dma/ioat/dma.c
+++ b/drivers/dma/ioat/dma.c
@@ -121,7 +121,7 @@ void ioat_stop(struct ioatdma_chan *ioat_chan)
         tasklet_kill(&ioat_chan->cleanup_task);
 
         /* final cleanup now that everything is quiesced and can't re-arm */
-        ioat_dma->cleanup_fn((unsigned long)&ioat_chan->dma_chan);
+        ioat_cleanup_event((unsigned long)&ioat_chan->dma_chan);
 }
 
 static void __ioat_issue_pending(struct ioatdma_chan *ioat_chan)
@@ -520,10 +520,8 @@ int ioat_check_space_lock(struct ioatdma_chan *ioat_chan, int num_descs)
          */
         if (time_is_before_jiffies(ioat_chan->timer.expires)
             && timer_pending(&ioat_chan->timer)) {
-                struct ioatdma_device *ioat_dma = ioat_chan->ioat_dma;
-
                 mod_timer(&ioat_chan->timer, jiffies + COMPLETION_TIMEOUT);
-                ioat_dma->timer_fn((unsigned long)ioat_chan);
+                ioat_timer_event((unsigned long)ioat_chan);
         }
 
         return -ENOMEM;
diff --git a/drivers/dma/ioat/dma.h b/drivers/dma/ioat/dma.h
index 2e1f05464703..df569d810b8f 100644
--- a/drivers/dma/ioat/dma.h
+++ b/drivers/dma/ioat/dma.h
@@ -68,14 +68,6 @@ enum ioat_irq_mode {
  * @msix_entries: irq handlers
  * @idx: per channel data
  * @dca: direct cache access context
- * @intr_quirk: interrupt setup quirk (for ioat_v1 devices)
- * @enumerate_channels: hw version specific channel enumeration
- * @reset_hw: hw version specific channel (re)initialization
- * @cleanup_fn: select between the v2 and v3 cleanup routines
- * @timer_fn: select between the v2 and v3 timer watchdog routines
- * @self_test: hardware version specific self test for each supported op type
- *
- * Note: the v3 cleanup routine supports raid operations
  */
 struct ioatdma_device {
         struct pci_dev *pdev;
@@ -91,12 +83,6 @@ struct ioatdma_device {
         struct dca_provider *dca;
         enum ioat_irq_mode irq_mode;
         u32 cap;
-        void (*intr_quirk)(struct ioatdma_device *ioat_dma);
-        int (*enumerate_channels)(struct ioatdma_device *ioat_dma);
-        int (*reset_hw)(struct ioatdma_chan *ioat_chan);
-        void (*cleanup_fn)(unsigned long data);
-        void (*timer_fn)(unsigned long data);
-        int (*self_test)(struct ioatdma_device *ioat_dma);
 };
 
 struct ioatdma_chan {
diff --git a/drivers/dma/ioat/init.c b/drivers/dma/ioat/init.c
index e6969809d723..592222105997 100644
--- a/drivers/dma/ioat/init.c
+++ b/drivers/dma/ioat/init.c
@@ -113,6 +113,9 @@ static void ioat_remove(struct pci_dev *pdev);
 static void
 ioat_init_channel(struct ioatdma_device *ioat_dma,
                   struct ioatdma_chan *ioat_chan, int idx);
+static void ioat_intr_quirk(struct ioatdma_device *ioat_dma);
+static int ioat_enumerate_channels(struct ioatdma_device *ioat_dma);
+static int ioat3_dma_self_test(struct ioatdma_device *ioat_dma);
 
 static int ioat_dca_enabled = 1;
 module_param(ioat_dca_enabled, int, 0644);
@@ -443,8 +446,8 @@ intx:
 
         ioat_dma->irq_mode = IOAT_INTX;
 done:
-        if (ioat_dma->intr_quirk)
-                ioat_dma->intr_quirk(ioat_dma);
+        if (is_bwd_ioat(pdev))
+                ioat_intr_quirk(ioat_dma);
         intrctrl |= IOAT_INTRCTRL_MASTER_INT_EN;
         writeb(intrctrl, ioat_dma->reg_base + IOAT_INTRCTRL_OFFSET);
         return 0;
@@ -489,7 +492,7 @@ static int ioat_probe(struct ioatdma_device *ioat_dma)
                 goto err_completion_pool;
         }
 
-        ioat_dma->enumerate_channels(ioat_dma);
+        ioat_enumerate_channels(ioat_dma);
 
         dma_cap_set(DMA_MEMCPY, dma->cap_mask);
         dma->dev = &pdev->dev;
@@ -503,7 +506,7 @@ static int ioat_probe(struct ioatdma_device *ioat_dma)
         if (err)
                 goto err_setup_interrupts;
 
-        err = ioat_dma->self_test(ioat_dma);
+        err = ioat3_dma_self_test(ioat_dma);
         if (err)
                 goto err_self_test;
 
@@ -582,7 +585,7 @@ static int ioat_enumerate_channels(struct ioatdma_device *ioat_dma)
                 ioat_init_channel(ioat_dma, ioat_chan, i);
                 ioat_chan->xfercap_log = xfercap_log;
                 spin_lock_init(&ioat_chan->prep_lock);
-                if (ioat_dma->reset_hw(ioat_chan)) {
+                if (ioat_reset_hw(ioat_chan)) {
                         i = 0;
                         break;
                 }
@@ -611,7 +614,7 @@ static void ioat_free_chan_resources(struct dma_chan *c)
                 return;
 
         ioat_stop(ioat_chan);
-        ioat_dma->reset_hw(ioat_chan);
+        ioat_reset_hw(ioat_chan);
 
         spin_lock_bh(&ioat_chan->cleanup_lock);
         spin_lock_bh(&ioat_chan->prep_lock);
@@ -730,9 +733,9 @@ ioat_init_channel(struct ioatdma_device *ioat_dma,
         list_add_tail(&ioat_chan->dma_chan.device_node, &dma->channels);
         ioat_dma->idx[idx] = ioat_chan;
         init_timer(&ioat_chan->timer);
-        ioat_chan->timer.function = ioat_dma->timer_fn;
+        ioat_chan->timer.function = ioat_timer_event;
         ioat_chan->timer.data = data;
-        tasklet_init(&ioat_chan->cleanup_task, ioat_dma->cleanup_fn, data);
+        tasklet_init(&ioat_chan->cleanup_task, ioat_cleanup_event, data);
 }
 
 #define IOAT_NUM_SRC_TEST 6 /* must be <= 8 */
@@ -1053,10 +1056,6 @@ static int ioat3_dma_probe(struct ioatdma_device *ioat_dma, int dca)
         bool is_raid_device = false;
         int err;
 
-        ioat_dma->enumerate_channels = ioat_enumerate_channels;
-        ioat_dma->reset_hw = ioat_reset_hw;
-        ioat_dma->self_test = ioat3_dma_self_test;
-        ioat_dma->intr_quirk = ioat_intr_quirk;
         dma = &ioat_dma->dma_dev;
         dma->device_prep_dma_memcpy = ioat_dma_prep_memcpy_lock;
         dma->device_issue_pending = ioat_issue_pending;
@@ -1114,8 +1113,6 @@ static int ioat3_dma_probe(struct ioatdma_device *ioat_dma, int dca)
         }
 
         dma->device_tx_status = ioat_tx_status;
-        ioat_dma->cleanup_fn = ioat_cleanup_event;
-        ioat_dma->timer_fn = ioat_timer_event;
 
         /* starting with CB3.3 super extended descriptors are supported */
         if (ioat_dma->cap & IOAT_CAP_RAID16SS) {