netxen: enable rss for NX2031

Enable multiple rx rings for older NX2031 chip, firmware 3.4.336
or newer supports this feature.

Signed-off-by: Amit Kumar Salecha <amit@netxen.com>
Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 21 insertions, 6 deletions

diff --git a/drivers/net/netxen/netxen_nic.h b/drivers/net/netxen/netxen_nic.h
index f13fd0282f55..ebd6c2edc343 100644
--- a/drivers/net/netxen/netxen_nic.h
+++ b/drivers/net/netxen/netxen_nic.h
@@ -195,6 +195,8 @@
 #define MAX_JUMBO_RCV_DESCRIPTORS       1024
 #define MAX_LRO_RCV_DESCRIPTORS         8
 #define NETXEN_CTX_SIGNATURE    0xdee0
+#define NETXEN_CTX_SIGNATURE_V2 0x0002dee0
+#define NETXEN_CTX_RESET        0xbad0
 #define NETXEN_RCV_PRODUCER(ringid)     (ringid)
 
 #define PHAN_PEG_RCV_INITIALIZED        0xff01
@@ -234,12 +236,19 @@ typedef u32 netxen_ctx_msg;
 #define netxen_set_msg_opcode(config_word, val) \
         ((config_word) &= ~(0xf<<28), (config_word) |= (val & 0xf) << 28)
 
-struct netxen_rcv_context {
-        __le64 rcv_ring_addr;
-        __le32 rcv_ring_size;
+struct netxen_rcv_ring {
+        __le64 addr;
+        __le32 size;
         __le32 rsrvd;
 };
 
+struct netxen_sts_ring {
+        __le64 addr;
+        __le32 size;
+        __le16 msi_index;
+        __le16 rsvd;
+} ;
+
 struct netxen_ring_ctx {
 
         /* one command ring */
@@ -249,13 +258,18 @@ struct netxen_ring_ctx {
         __le32 rsrvd;
 
         /* three receive rings */
-        struct netxen_rcv_context rcv_ctx[3];
+        struct netxen_rcv_ring rcv_rings[NUM_RCV_DESC_RINGS];
 
-        /* one status ring */
         __le64 sts_ring_addr;
         __le32 sts_ring_size;
 
         __le32 ctx_id;
+
+        __le64 rsrvd_2[3];
+        __le32 sts_ring_count;
+        __le32 rsrvd_3;
+        struct netxen_sts_ring sts_rings[NUM_STS_DESC_RINGS];
+
 } __attribute__ ((aligned(64)));
 
 /*
@@ -1219,7 +1233,8 @@ struct netxen_adapter {
 
         u8 mc_enabled;
         u8 max_mc_count;
-        u16 resv2;
+        u8 rss_supported;
+        u8 resv2;
         u32 resv3;
 
         u8 has_link_events;