src/patches/suse-2.6.27.25/patches.drivers/disable-catas_reset-by-default-to-avoid-problems-with-eeh.patch

   1 From: Xiuling Ma <xma@us.ibm.com>
   2 Subject: [PATCH] disable catas_reset by default to avoid problems with EEH
   3 References: bnc#456389
   4
   5 PPC machines with EEH and Mellanox ib/net cards with catastrophic error
   6 recovery that encounter a PCI bus error can crash and become
   7 unresponsive.
   8
   9 Disable the card reset to avoid this.
  10
  11 NOTE: an upstream fix will come later once IBM can review a couple of
  12 approaches I suggested since this fix is brute force. This driver didn't have
  13 this reset on error feature in SLES10 so it isn't a feature removal.
  14
  15 Signed-off-by: Xiuling Ma <xma@us.ibm.com>
  16 Acked-by: Brandon Philips <bphilips@suse.de>
  17
  18 ---
  19  drivers/infiniband/hw/mthca/mthca_catas.c |    2 +-
  20  drivers/net/mlx4/catas.c                  |    2 +-
  21  2 files changed, 2 insertions(+), 2 deletions(-)
  22
  23 Index: linux-2.6/drivers/infiniband/hw/mthca/mthca_catas.c
  24 ===================================================================
  25 --- linux-2.6.orig/drivers/infiniband/hw/mthca/mthca_catas.c
  26 +++ linux-2.6/drivers/infiniband/hw/mthca/mthca_catas.c
  27 @@ -51,7 +51,7 @@ static LIST_HEAD(catas_list);
  28  static struct workqueue_struct *catas_wq;
  29  static struct work_struct catas_work;
  30
  31 -static int catas_reset_disable;
  32 +static int catas_reset_disable = 1;
  33  module_param_named(catas_reset_disable, catas_reset_disable, int, 0644);
  34  MODULE_PARM_DESC(catas_reset_disable, "disable reset on catastrophic event if nonzero");
  35
  36 Index: linux-2.6/drivers/net/mlx4/catas.c
  37 ===================================================================
  38 --- linux-2.6.orig/drivers/net/mlx4/catas.c
  39 +++ linux-2.6/drivers/net/mlx4/catas.c
  40 @@ -45,7 +45,7 @@ static LIST_HEAD(catas_list);
  41  static struct workqueue_struct *catas_wq;
  42  static struct work_struct catas_work;
  43
  44 -static int internal_err_reset = 1;
  45 +static int internal_err_reset = 0;
  46  module_param(internal_err_reset, int, 0644);
  47  MODULE_PARM_DESC(internal_err_reset,
  48                  "Reset device on internal errors if non-zero (default 1)");