From: Hyong Youb Kim <hyon...@cisco.com>
The firmware on new hardware models flushes the global descriptor
cache by default. Use CMD_OPENF_IG_DESCCACHE to avoid cache
flushing. This flag has no effect on older models.
Signed-off-by: Hyong Youb Kim <hyon...@cisco.com>
Suggested-by: Govindarajulu Varadarajan <gvara...@cisco.com>
Reviewed-by: John Daley <johnd...@cisco.com>
---
drivers/net/enic/base/vnic_devcmd.h | 1 +
drivers/net/enic/enic_main.c | 3 ++-
2 files changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/net/enic/base/vnic_devcmd.h
b/drivers/net/enic/base/vnic_devcmd.h
index 6b95bc488..a63624559 100644
--- a/drivers/net/enic/base/vnic_devcmd.h
+++ b/drivers/net/enic/base/vnic_devcmd.h
@@ -600,6 +600,7 @@ enum filter_cap_mode {
/* flags for CMD_OPEN */
#define CMD_OPENF_OPROM 0x1 /* open coming from option rom
*/
+#define CMD_OPENF_IG_DESCCACHE 0x2 /* Do not flush IG DESC cache */
/* flags for CMD_INIT */
#define CMD_INITF_DEFAULT_MAC 0x1 /* init with default mac addr */
diff --git a/drivers/net/enic/enic_main.c b/drivers/net/enic/enic_main.c
index 69ad42555..e908e20f2 100644
--- a/drivers/net/enic/enic_main.c
+++ b/drivers/net/enic/enic_main.c
@@ -983,9 +983,10 @@ static int enic_dev_wait(struct vnic_dev *vdev,
static int enic_dev_open(struct enic *enic)
{
int err;
+ int flags = CMD_OPENF_IG_DESCCACHE;
err = enic_dev_wait(enic->vdev, vnic_dev_open,
- vnic_dev_open_done, 0);
+ vnic_dev_open_done, flags);
if (err)
dev_err(enic_get_dev(enic),
"vNIC device open failed, err %d\n", err);
--
2.16.2
