X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=kernel%2Fdrivers%2Fnet%2Fethernet%2Fcavium%2Fthunder%2Fnic.h;h=22471d283a952ad6b43115badf339acd3a0c3418;hb=52f993b8e89487ec9ee15a7fb4979e0f09a45b27;hp=39ca6744a4e68fe317f93e1318e729509c1b978e;hpb=c189ccac5702322ed843fe17057035b7222a59b6;p=kvmfornfv.git

diff --git a/kernel/drivers/net/ethernet/cavium/thunder/nic.h b/kernel/drivers/net/ethernet/cavium/thunder/nic.h
index 39ca6744a..22471d283 100644
--- a/kernel/drivers/net/ethernet/cavium/thunder/nic.h
+++ b/kernel/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