net/mlx4_core: Eliminate warning messages for SRQ_LIMIT under SRIOV

commit 9577b174cd0323d287c994ef0891db71666d0765 upstream.

When running SRIOV, warnings for SRQ LIMIT events flood the Hypervisor's
message log when (correct, normally operating) apps use SRQ LIMIT events
as a trigger to post WQEs to SRQs.

Add more information to the existing debug printout for SRQ_LIMIT, and
output the warning messages only for the SRQ CATAS ERROR event.

Fixes: acba2420f9d2 ("mlx4_core: Add wrapper functions and comm channel and slave event support to EQs")
Fixes: e0debf9cb50d ("mlx4_core: Reduce warning message for SRQ_LIMIT event to debug level")
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

diff --git a/drivers/net/ethernet/mellanox/mlx4/eq.c b/drivers/net/ethernet/mellanox/mlx4/eq.c
index c26eec5f33c32a86fc7b75ee320a5954de547f48..e79dbd9ff0668be9d88b9a365cd859c3acf09394 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx4/eq.c
+++ b/drivers/net/ethernet/mellanox/mlx4/eq.c
@@ -506,8 +506,9 @@ static int mlx4_eq_int(struct mlx4_dev *dev, struct mlx4_eq *eq)
                        break;
 
                case MLX4_EVENT_TYPE_SRQ_LIMIT:
-                       mlx4_dbg(dev, "%s: MLX4_EVENT_TYPE_SRQ_LIMIT\n",
-                                __func__);
+                       mlx4_dbg(dev, "%s: MLX4_EVENT_TYPE_SRQ_LIMIT. srq_no=0x%x, eq 0x%x\n",
+                                __func__, be32_to_cpu(eqe->event.srq.srqn),
+                                eq->eqn);
                case MLX4_EVENT_TYPE_SRQ_CATAS_ERROR:
                        if (mlx4_is_master(dev)) {
                                /* forward only to slave owning the SRQ */
@@ -522,15 +523,19 @@ static int mlx4_eq_int(struct mlx4_dev *dev, struct mlx4_eq *eq)
                                                  eq->eqn, eq->cons_index, ret);
                                        break;
                                }
-                               mlx4_warn(dev, "%s: slave:%d, srq_no:0x%x, event: %02x(%02x)\n",
-                                         __func__, slave,
-                                         be32_to_cpu(eqe->event.srq.srqn),
-                                         eqe->type, eqe->subtype);
+                               if (eqe->type ==
+                                   MLX4_EVENT_TYPE_SRQ_CATAS_ERROR)
+                                       mlx4_warn(dev, "%s: slave:%d, srq_no:0x%x, event: %02x(%02x)\n",
+                                                 __func__, slave,
+                                                 be32_to_cpu(eqe->event.srq.srqn),
+                                                 eqe->type, eqe->subtype);
 
                                if (!ret && slave != dev->caps.function) {
-                                       mlx4_warn(dev, "%s: sending event %02x(%02x) to slave:%d\n",
-                                                 __func__, eqe->type,
-                                                 eqe->subtype, slave);
+                                       if (eqe->type ==
+                                           MLX4_EVENT_TYPE_SRQ_CATAS_ERROR)
+                                               mlx4_warn(dev, "%s: sending event %02x(%02x) to slave:%d\n",
+                                                         __func__, eqe->type,
+                                                         eqe->subtype, slave);
                                        mlx4_slave_event(dev, slave, eqe);
                                        break;
                                }