Here's a patch I used to test MSI-X failure recovery code
in mlx4 and mthca. Posted in case it's useful to someone.
Signed-off-by: Michael S. Tsirkin <[EMAIL PROTECTED]>
---
Index: linux-2.6/drivers/infiniband/hw/mthca/mthca_eq.c
===================================================================
--- linux-2.6.orig/drivers/infiniband/hw/mthca/mthca_eq.c 2007-07-19
09:36:11.000000000 +0300
+++ linux-2.6/drivers/infiniband/hw/mthca/mthca_eq.c 2007-07-22
12:02:17.000000000 +0300
@@ -436,7 +436,8 @@ static irqreturn_t mthca_tavor_msi_x_int
struct mthca_eq *eq = eq_ptr;
struct mthca_dev *dev = eq->dev;
- mthca_eq_int(dev, eq);
+ if (0)
+ mthca_eq_int(dev, eq);
tavor_set_eq_ci(dev, eq, eq->cons_index);
tavor_eq_req_not(dev, eq->eqn);
Index: linux-2.6/drivers/net/mlx4/eq.c
===================================================================
--- linux-2.6.orig/drivers/net/mlx4/eq.c 2007-07-19 09:30:35.000000000
+0300
+++ linux-2.6/drivers/net/mlx4/eq.c 2007-07-22 12:01:35.000000000 +0300
@@ -273,7 +273,8 @@ static irqreturn_t mlx4_msi_x_interrupt(
struct mlx4_eq *eq = eq_ptr;
struct mlx4_dev *dev = eq->dev;
- mlx4_eq_int(dev, eq);
+ if (0)
+ mlx4_eq_int(dev, eq);
/* MSI-X vectors always belong to us */
return IRQ_HANDLED;
--
MST
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