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authorDave Airlie <airlied@redhat.com>2016-03-14 09:42:34 +1000
committerDave Airlie <airlied@redhat.com>2016-03-14 09:46:02 +1000
commit9b61c0fcdf0cfd20a85d9856d46142e7f297de0a (patch)
treed4abe6aa3f4e1e088f9da1d0597e078b1fe58912 /drivers/net/ethernet/cavium/thunder/nic.h
parent550e3b23a53c88adfa46e64f9d442743e65d47da (diff)
parent125234dc8b1cc862f52d8bd5b37c36cc59b2cb86 (diff)
Merge drm-fixes into drm-next.
Nouveau wanted this to avoid some worse conflicts when I merge that.
Diffstat (limited to 'drivers/net/ethernet/cavium/thunder/nic.h')
-rw-r--r--drivers/net/ethernet/cavium/thunder/nic.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/net/ethernet/cavium/thunder/nic.h b/drivers/net/ethernet/cavium/thunder/nic.h
index 688828865c48..34e9acea8747 100644
--- a/drivers/net/ethernet/cavium/thunder/nic.h
+++ b/drivers/net/ethernet/cavium/thunder/nic.h
@@ -116,6 +116,15 @@
#define NIC_PF_INTR_ID_MBOX0 8
#define NIC_PF_INTR_ID_MBOX1 9
+/* Minimum FIFO level before all packets for the CQ are dropped
+ *
+ * This value ensures that once a packet has been "accepted"
+ * for reception it will not get dropped due to non-availability
+ * of CQ descriptor. An errata in HW mandates this value to be
+ * atleast 0x100.
+ */
+#define NICPF_CQM_MIN_DROP_LEVEL 0x100
+
/* Global timer for CQ timer thresh interrupts
* Calculated for SCLK of 700Mhz
* value written should be a 1/16th of what is expected