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authorLinus Torvalds <torvalds@linux-foundation.org>2010-10-23 11:47:02 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-10-23 11:47:02 -0700
commit5f05647dd81c11a6a165ccc8f0c1370b16f3bcb0 (patch)
tree7851ef1c93aa1aba7ef327ca4b75fd35e6d10f29 /drivers/net/mlx4/eq.c
parent02f36038c568111ad4fc433f6fa760ff5e38fab4 (diff)
parentec37a48d1d16c30b655ac5280209edf52a6775d4 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1699 commits) bnx2/bnx2x: Unsupported Ethtool operations should return -EINVAL. vlan: Calling vlan_hwaccel_do_receive() is always valid. tproxy: use the interface primary IP address as a default value for --on-ip tproxy: added IPv6 support to the socket match cxgb3: function namespace cleanup tproxy: added IPv6 support to the TPROXY target tproxy: added IPv6 socket lookup function to nf_tproxy_core be2net: Changes to use only priority codes allowed by f/w tproxy: allow non-local binds of IPv6 sockets if IP_TRANSPARENT is enabled tproxy: added tproxy sockopt interface in the IPV6 layer tproxy: added udp6_lib_lookup function tproxy: added const specifiers to udp lookup functions tproxy: split off ipv6 defragmentation to a separate module l2tp: small cleanup nf_nat: restrict ICMP translation for embedded header can: mcp251x: fix generation of error frames can: mcp251x: fix endless loop in interrupt handler if CANINTF_MERRF is set can-raw: add msg_flags to distinguish local traffic 9p: client code cleanup rds: make local functions/variables static ... Fix up conflicts in net/core/dev.c, drivers/net/pcmcia/smc91c92_cs.c and drivers/net/wireless/ath/ath9k/debug.c as per David
Diffstat (limited to 'drivers/net/mlx4/eq.c')
-rw-r--r--drivers/net/mlx4/eq.c44
1 files changed, 44 insertions, 0 deletions
diff --git a/drivers/net/mlx4/eq.c b/drivers/net/mlx4/eq.c
index 6d7b2bf210ce..552d0fce6f67 100644
--- a/drivers/net/mlx4/eq.c
+++ b/drivers/net/mlx4/eq.c
@@ -699,3 +699,47 @@ void mlx4_cleanup_eq_table(struct mlx4_dev *dev)
kfree(priv->eq_table.uar_map);
}
+
+/* A test that verifies that we can accept interrupts on all
+ * the irq vectors of the device.
+ * Interrupts are checked using the NOP command.
+ */
+int mlx4_test_interrupts(struct mlx4_dev *dev)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+ int i;
+ int err;
+
+ err = mlx4_NOP(dev);
+ /* When not in MSI_X, there is only one irq to check */
+ if (!(dev->flags & MLX4_FLAG_MSI_X))
+ return err;
+
+ /* A loop over all completion vectors, for each vector we will check
+ * whether it works by mapping command completions to that vector
+ * and performing a NOP command
+ */
+ for(i = 0; !err && (i < dev->caps.num_comp_vectors); ++i) {
+ /* Temporary use polling for command completions */
+ mlx4_cmd_use_polling(dev);
+
+ /* Map the new eq to handle all asyncronous events */
+ err = mlx4_MAP_EQ(dev, MLX4_ASYNC_EVENT_MASK, 0,
+ priv->eq_table.eq[i].eqn);
+ if (err) {
+ mlx4_warn(dev, "Failed mapping eq for interrupt test\n");
+ mlx4_cmd_use_events(dev);
+ break;
+ }
+
+ /* Go back to using events */
+ mlx4_cmd_use_events(dev);
+ err = mlx4_NOP(dev);
+ }
+
+ /* Return to default */
+ mlx4_MAP_EQ(dev, MLX4_ASYNC_EVENT_MASK, 0,
+ priv->eq_table.eq[dev->caps.num_comp_vectors].eqn);
+ return err;
+}
+EXPORT_SYMBOL(mlx4_test_interrupts);