net_pkt: Extend packet abstraction as required by e1000e functionality

This patch extends the TX/RX packet abstractions with features that will
be used by the e1000e device implementation.

Changes are:

  1. Support iovec lists for RX buffers
  2. Deeper RX packets parsing
  3. Loopback option for TX packets
  4. Extended VLAN headers handling
  5. RSS processing for RX packets

Signed-off-by: Dmitry Fleytman <dmitry.fleytman@ravellosystems.com>
Signed-off-by: Leonid Bloch <leonid.bloch@ravellosystems.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>

1 files changed, 40 insertions, 0 deletions

diff --git a/trace-events b/trace-events
index b53c354..03cb770 100644
--- a/trace-events
+++ b/trace-events
@@ -1914,3 +1914,43 @@ gic_set_irq(int irq, int level, int cpumask, int target) "irq %d level %d cpumas
 gic_update_bestirq(int cpu, int irq, int prio, int priority_mask, int running_priority) "cpu %d irq %d priority %d cpu priority mask %d cpu running priority %d"
 gic_update_set_irq(int cpu, const char *name, int level) "cpu[%d]: %s = %d"
 gic_acknowledge_irq(int cpu, int irq) "cpu %d acknowledged irq %d"
+
+# hw/net/net_rx_pkt.c
+net_rx_pkt_parsed(bool ip4, bool ip6, bool udp, bool tcp, size_t l3o, size_t l4o, size_t l5o) "RX packet parsed: ip4: %d, ip6: %d, udp: %d, tcp: %d, l3 offset: %zu, l4 offset: %zu, l5 offset: %zu"
+net_rx_pkt_l4_csum_validate_entry(void) "Starting L4 checksum validation"
+net_rx_pkt_l4_csum_validate_not_xxp(void) "Not a TCP/UDP packet"
+net_rx_pkt_l4_csum_validate_udp_with_no_checksum(void) "UDP packet without checksum"
+net_rx_pkt_l4_csum_validate_ip4_fragment(void) "IP4 fragment"
+net_rx_pkt_l4_csum_validate_ip4_udp(void) "IP4/UDP packet"
+net_rx_pkt_l4_csum_validate_ip4_tcp(void) "IP4/TCP packet"
+net_rx_pkt_l4_csum_validate_ip6_udp(void) "IP6/UDP packet"
+net_rx_pkt_l4_csum_validate_ip6_tcp(void) "IP6/TCP packet"
+net_rx_pkt_l4_csum_validate_csum(bool csum_valid) "Checksum valid: %d"
+
+net_rx_pkt_l4_csum_calc_entry(void) "Starting L4 checksum calculation"
+net_rx_pkt_l4_csum_calc_ip4_udp(void) "IP4/UDP packet"
+net_rx_pkt_l4_csum_calc_ip4_tcp(void) "IP4/TCP packet"
+net_rx_pkt_l4_csum_calc_ip6_udp(void) "IP6/UDP packet"
+net_rx_pkt_l4_csum_calc_ip6_tcp(void) "IP6/TCP packet"
+net_rx_pkt_l4_csum_calc_ph_csum(uint32_t cntr, uint16_t csl) "Pseudo-header: checksum counter %u, length %u"
+net_rx_pkt_l4_csum_calc_csum(size_t l4hdr_off, uint16_t csl, uint32_t cntr, uint16_t csum) "L4 Checksum: L4 header offset: %zu, length: %u, counter: 0x%X, final checksum: 0x%X"
+
+net_rx_pkt_l4_csum_fix_entry(void) "Starting L4 checksum correction"
+net_rx_pkt_l4_csum_fix_tcp(uint32_t l4_cso) "TCP packet, L4 cso: %u"
+net_rx_pkt_l4_csum_fix_udp(uint32_t l4_cso) "UDP packet, L4 cso: %u"
+net_rx_pkt_l4_csum_fix_not_xxp(void) "Not an IP4 packet"
+net_rx_pkt_l4_csum_fix_ip4_fragment(void) "IP4 fragment"
+net_rx_pkt_l4_csum_fix_udp_with_no_checksum(void) "UDP packet without checksum"
+net_rx_pkt_l4_csum_fix_csum(uint32_t cso, uint16_t csum) "L4 Checksum: Offset: %u, value 0x%X"
+
+net_rx_pkt_l3_csum_validate_entry(void) "Starting L3 checksum validation"
+net_rx_pkt_l3_csum_validate_not_ip4(void) "Not an IP4 packet"
+net_rx_pkt_l3_csum_validate_csum(size_t l3hdr_off, uint32_t csl, uint32_t cntr, uint16_t csum, bool csum_valid) "L3 Checksum: L3 header offset: %zu, length: %u, counter: 0x%X, final checksum: 0x%X, valid: %d"
+
+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_ip6_tcp(void) "Calculating IPv6/TCP 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_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"