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path: root/drivers/net/ethernet/intel/ixgbe/ixgbe_lib.c
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Diffstat (limited to 'drivers/net/ethernet/intel/ixgbe/ixgbe_lib.c')
-rw-r--r--drivers/net/ethernet/intel/ixgbe/ixgbe_lib.c32
1 files changed, 18 insertions, 14 deletions
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_lib.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_lib.c
index 5d085d5ed6b7..2a388944989b 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_lib.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_lib.c
@@ -696,8 +696,8 @@ static void ixgbe_set_num_queues(struct ixgbe_adapter *adapter)
ixgbe_set_rss_queues(adapter);
}
-static void ixgbe_acquire_msix_vectors(struct ixgbe_adapter *adapter,
- int vectors)
+static int ixgbe_acquire_msix_vectors(struct ixgbe_adapter *adapter,
+ int vectors)
{
int vector_threshold;
@@ -726,16 +726,22 @@ static void ixgbe_acquire_msix_vectors(struct ixgbe_adapter *adapter,
adapter->flags &= ~IXGBE_FLAG_MSIX_ENABLED;
kfree(adapter->msix_entries);
adapter->msix_entries = NULL;
- } else {
- adapter->flags |= IXGBE_FLAG_MSIX_ENABLED; /* Woot! */
- /*
- * Adjust for only the vectors we'll use, which is minimum
- * of max_msix_q_vectors + NON_Q_VECTORS, or the number of
- * vectors we were allocated.
- */
- vectors -= NON_Q_VECTORS;
- adapter->num_q_vectors = min(vectors, adapter->max_q_vectors);
+
+ return vectors;
}
+
+ /* we successfully allocated some number of vectors within our
+ * requested range.
+ */
+ adapter->flags |= IXGBE_FLAG_MSIX_ENABLED;
+
+ /* Adjust for only the vectors we'll use, which is minimum
+ * of max_q_vectors, or the number of vectors we were allocated.
+ */
+ vectors -= NON_Q_VECTORS;
+ adapter->num_q_vectors = min_t(int, vectors, adapter->max_q_vectors);
+
+ return 0;
}
static void ixgbe_add_ring(struct ixgbe_ring *ring,
@@ -1085,9 +1091,7 @@ static void ixgbe_set_interrupt_capability(struct ixgbe_adapter *adapter)
for (vector = 0; vector < v_budget; vector++)
adapter->msix_entries[vector].entry = vector;
- ixgbe_acquire_msix_vectors(adapter, v_budget);
-
- if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED)
+ if (!ixgbe_acquire_msix_vectors(adapter, v_budget))
return;
}
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