accel/habanalbs/gaudi2: reduce interrupt count to 128

Some systems allow a maximum number of 128 MSI-X interrupts.
Hence we reduce the interrupt count to 128 instead of 512.

Reviewed-by: Tomer Tayar <ttayar@habana.ai>
Signed-off-by: Ofir Bitton <obitton@habana.ai>

diff --git a/drivers/accel/habanalabs/gaudi2/gaudi2P.h b/drivers/accel/habanalabs/gaudi2/gaudi2P.h
index eee41387b269c34a40451e86ad7a6a6dd0b19a1d..05117272cac7e403ebc6281424718e969ffbec6b 100644 (file)
--- a/drivers/accel/habanalabs/gaudi2/gaudi2P.h
+++ b/drivers/accel/habanalabs/gaudi2/gaudi2P.h
@@ -384,7 +384,7 @@ enum gaudi2_edma_id {
 /* User interrupt count is aligned with HW CQ count.
  * We have 64 CQ's per dcore, CQ0 in dcore 0 is reserved for legacy mode
  */
-#define GAUDI2_NUM_USER_INTERRUPTS 255
+#define GAUDI2_NUM_USER_INTERRUPTS 64
 #define GAUDI2_NUM_RESERVED_INTERRUPTS 1
 #define GAUDI2_TOTAL_USER_INTERRUPTS (GAUDI2_NUM_USER_INTERRUPTS + GAUDI2_NUM_RESERVED_INTERRUPTS)
 
@@ -416,11 +416,11 @@ enum gaudi2_irq_num {
        GAUDI2_IRQ_NUM_NIC_PORT_LAST = (GAUDI2_IRQ_NUM_NIC_PORT_FIRST + NIC_NUMBER_OF_PORTS - 1),
        GAUDI2_IRQ_NUM_TPC_ASSERT,
        GAUDI2_IRQ_NUM_EQ_ERROR,
+       GAUDI2_IRQ_NUM_USER_FIRST,
+       GAUDI2_IRQ_NUM_USER_LAST = (GAUDI2_IRQ_NUM_USER_FIRST + GAUDI2_NUM_USER_INTERRUPTS - 1),
        GAUDI2_IRQ_NUM_RESERVED_FIRST,
-       GAUDI2_IRQ_NUM_RESERVED_LAST = (GAUDI2_MSIX_ENTRIES - GAUDI2_TOTAL_USER_INTERRUPTS - 1),
+       GAUDI2_IRQ_NUM_RESERVED_LAST = (GAUDI2_MSIX_ENTRIES - GAUDI2_NUM_RESERVED_INTERRUPTS - 1),
        GAUDI2_IRQ_NUM_UNEXPECTED_ERROR = RESERVED_MSIX_UNEXPECTED_USER_ERROR_INTERRUPT,
-       GAUDI2_IRQ_NUM_USER_FIRST = GAUDI2_IRQ_NUM_UNEXPECTED_ERROR + 1,
-       GAUDI2_IRQ_NUM_USER_LAST = (GAUDI2_IRQ_NUM_USER_FIRST + GAUDI2_NUM_USER_INTERRUPTS - 1),
        GAUDI2_IRQ_NUM_LAST = (GAUDI2_MSIX_ENTRIES - 1)
 };
 

diff --git a/drivers/accel/habanalabs/include/gaudi2/gaudi2.h b/drivers/accel/habanalabs/include/gaudi2/gaudi2.h
index 0231d6c55b4a7f5ab89405d03360f6a68b0aae9d..753d46a2836be66edbaabafd7868296368fe6bc9 100644 (file)
--- a/drivers/accel/habanalabs/include/gaudi2/gaudi2.h
+++ b/drivers/accel/habanalabs/include/gaudi2/gaudi2.h
@@ -63,9 +63,9 @@
 #define RESERVED_VA_RANGE_FOR_ARC_ON_HOST_HPAGE_START  0xFFF0F80000000000ull
 #define RESERVED_VA_RANGE_FOR_ARC_ON_HOST_HPAGE_END    0xFFF0FFFFFFFFFFFFull
 
-#define RESERVED_MSIX_UNEXPECTED_USER_ERROR_INTERRUPT  256
+#define RESERVED_MSIX_UNEXPECTED_USER_ERROR_INTERRUPT  127
 
-#define GAUDI2_MSIX_ENTRIES    512
+#define GAUDI2_MSIX_ENTRIES    128
 
 #define QMAN_PQ_ENTRY_SIZE     16                      /* Bytes */