[PATCH 1/2] NetRxPkt: Introduce support for additional hash types

[Yuri Benditovich]

Add support for following hash types:
IPV6 TCP with extension headers
IPV4 UDP
IPV6 UDP
IPV6 UDP with extension headers

Signed-off-by: Yuri Benditovich <address@hidden>
---
 hw/net/net_rx_pkt.c | 42 ++++++++++++++++++++++++++++++++++++++++++
 hw/net/net_rx_pkt.h |  6 +++++-
 hw/net/trace-events |  4 ++++
 3 files changed, 51 insertions(+), 1 deletion(-)

diff --git a/hw/net/net_rx_pkt.c b/hw/net/net_rx_pkt.c
index 98a5030ace..b2a06bd27d 100644
--- a/hw/net/net_rx_pkt.c
+++ b/hw/net/net_rx_pkt.c
@@ -307,6 +307,20 @@ _net_rx_rss_prepare_tcp(uint8_t *rss_input,
                           &tcphdr->th_dport, sizeof(uint16_t));
 }
 
+static inline void
+_net_rx_rss_prepare_udp(uint8_t *rss_input,
+                        struct NetRxPkt *pkt,
+                        size_t *bytes_written)
+{
+    struct udp_header *udphdr = &pkt->l4hdr_info.hdr.udp;
+
+    _net_rx_rss_add_chunk(rss_input, bytes_written,
+                          &udphdr->uh_sport, sizeof(uint16_t));
+
+    _net_rx_rss_add_chunk(rss_input, bytes_written,
+                          &udphdr->uh_dport, sizeof(uint16_t));
+}
+
 uint32_t
 net_rx_pkt_calc_rss_hash(struct NetRxPkt *pkt,
                          NetRxPktRssType type,
@@ -347,6 +361,34 @@ net_rx_pkt_calc_rss_hash(struct NetRxPkt *pkt,
         trace_net_rx_pkt_rss_ip6_ex();
         _net_rx_rss_prepare_ip6(&rss_input[0], pkt, true, &rss_length);
         break;
+    case NetPktRssIpV6TcpEx:
+        assert(pkt->isip6);
+        assert(pkt->istcp);
+        trace_net_rx_pkt_rss_ip6_ex_tcp();
+        _net_rx_rss_prepare_ip6(&rss_input[0], pkt, true, &rss_length);
+        _net_rx_rss_prepare_tcp(&rss_input[0], pkt, &rss_length);
+        break;
+    case NetPktRssIpV4Udp:
+        assert(pkt->isip4);
+        assert(pkt->isudp);
+        trace_net_rx_pkt_rss_ip4_udp();
+        _net_rx_rss_prepare_ip4(&rss_input[0], pkt, &rss_length);
+        _net_rx_rss_prepare_udp(&rss_input[0], pkt, &rss_length);
+        break;
+    case NetPktRssIpV6Udp:
+        assert(pkt->isip6);
+        assert(pkt->isudp);
+        trace_net_rx_pkt_rss_ip6_udp();
+        _net_rx_rss_prepare_ip6(&rss_input[0], pkt, false, &rss_length);
+        _net_rx_rss_prepare_udp(&rss_input[0], pkt, &rss_length);
+        break;
+    case NetPktRssIpV6UdpEx:
+        assert(pkt->isip6);
+        assert(pkt->isudp);
+        trace_net_rx_pkt_rss_ip6_ex_udp();
+        _net_rx_rss_prepare_ip6(&rss_input[0], pkt, true, &rss_length);
+        _net_rx_rss_prepare_udp(&rss_input[0], pkt, &rss_length);
+        break;
     default:
         assert(false);
         break;
diff --git a/hw/net/net_rx_pkt.h b/hw/net/net_rx_pkt.h
index 7adf0fad51..048e3461f0 100644
--- a/hw/net/net_rx_pkt.h
+++ b/hw/net/net_rx_pkt.h
@@ -133,7 +133,11 @@ typedef enum {
     NetPktRssIpV4Tcp,
     NetPktRssIpV6Tcp,
     NetPktRssIpV6,
-    NetPktRssIpV6Ex
+    NetPktRssIpV6Ex,
+    NetPktRssIpV6TcpEx,
+    NetPktRssIpV4Udp,
+    NetPktRssIpV6Udp,
+    NetPktRssIpV6UdpEx,
 } NetRxPktRssType;
 
 /**
diff --git a/hw/net/trace-events b/hw/net/trace-events
index 6f990ede87..73d4558f7e 100644
--- a/hw/net/trace-events
+++ b/hw/net/trace-events
@@ -92,9 +92,13 @@ net_rx_pkt_l3_csum_validate_csum(size_t l3hdr_off, uint32_t 
csl, uint32_t cntr,
 
 net_rx_pkt_rss_ip4(void) "Calculating IPv4 RSS  hash"
 net_rx_pkt_rss_ip4_tcp(void) "Calculating IPv4/TCP RSS  hash"
+net_rx_pkt_rss_ip4_udp(void) "Calculating IPv4/UDP RSS  hash"
 net_rx_pkt_rss_ip6_tcp(void) "Calculating IPv6/TCP RSS  hash"
+net_rx_pkt_rss_ip6_udp(void) "Calculating IPv6/UDP RSS  hash"
 net_rx_pkt_rss_ip6(void) "Calculating IPv6 RSS  hash"
 net_rx_pkt_rss_ip6_ex(void) "Calculating IPv6/EX RSS  hash"
+net_rx_pkt_rss_ip6_ex_tcp(void) "Calculating IPv6/EX/TCP RSS  hash"
+net_rx_pkt_rss_ip6_ex_udp(void) "Calculating IPv6/EX/UDP RSS  hash"
 net_rx_pkt_rss_hash(size_t rss_length, uint32_t rss_hash) "RSS hash for %zu 
bytes: 0x%X"
 net_rx_pkt_rss_add_chunk(void* ptr, size_t size, size_t input_offset) "Add RSS 
chunk %p, %zu bytes, RSS input offset %zu bytes"
 
-- 
2.17.1