net/enic: support UDP RSS on 1400 series adapters

[dpdk.git] / drivers / net / enic / base / vnic_dev.c

diff --git a/drivers/net/enic/base/vnic_dev.c b/drivers/net/enic/base/vnic_dev.c
index 1f8d222..eccbb30 100644 (file)
--- a/drivers/net/enic/base/vnic_dev.c
+++ b/drivers/net/enic/base/vnic_dev.c
@@ -10,6 +10,7 @@
 #include "vnic_dev.h"
 #include "vnic_resource.h"
 #include "vnic_devcmd.h"
+#include "vnic_nic.h"
 #include "vnic_stats.h"
 
 
@@ -531,6 +532,23 @@ parse_max_level:
        return 0;
 }
 
+int vnic_dev_capable_udp_rss(struct vnic_dev *vdev)
+{
+       u64 a0 = CMD_NIC_CFG, a1 = 0;
+       u64 rss_hash_type;
+       int wait = 1000;
+       int err;
+
+       err = vnic_dev_cmd(vdev, CMD_CAPABILITY, &a0, &a1, wait);
+       if (err)
+               return 0;
+       if (a0 == 0)
+               return 0;
+       rss_hash_type = (a1 >> NIC_CFG_RSS_HASH_TYPE_SHIFT) &
+               NIC_CFG_RSS_HASH_TYPE_MASK_FIELD;
+       return ((rss_hash_type & NIC_CFG_RSS_HASH_TYPE_UDP) ? 1 : 0);
+}
+
 int vnic_dev_capable(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd)
 {
        u64 a0 = (u32)cmd, a1 = 0;