Enable sending BIG TCP packets on IPv6 in the ice driver using generic
ipv6_hopopt_jumbo_remove helper for stripping HBH header.
Tested:
netperf -t TCP_RR -H 2001:db8:0:f101::1 -- -r80000,80000 -O MIN_LATENCY,P90_LATENCY,P99_LATENCY,TRANSACTION_RATE
Tested on two different setups. In both cases, the following settings were
applied after loading the changed driver:
ip link set dev enp175s0f1np1 gso_max_size 130000
ip link set dev enp175s0f1np1 gro_max_size 130000
ip link set dev enp175s0f1np1 mtu 9000
First setup:
Before:
Minimum 90th 99th Transaction
Latency Percentile Percentile Rate
Microseconds Latency Latency Tran/s
Microseconds Microseconds
134 279 410 3961.584
After:
Minimum 90th 99th Transaction
Latency Percentile Percentile Rate
Microseconds Latency Latency Tran/s
Microseconds Microseconds
135 178 216 6093.404
The other setup:
Before:
Minimum 90th 99th Transaction
Latency Percentile Percentile Rate
Microseconds Latency Latency Tran/s
Microseconds Microseconds
218 414 478 2944.765
After:
Minimum 90th 99th Transaction
Latency Percentile Percentile Rate
Microseconds Latency Latency Tran/s
Microseconds Microseconds
146 238 266 4700.596
Signed-off-by: Pawel Chmielewski <pawel.chmielewski@intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
#define ICE_MAX_MTU (ICE_AQ_SET_MAC_FRAME_SIZE_MAX - ICE_ETH_PKT_HDR_PAD)
+#define ICE_MAX_TSO_SIZE 131072
+
#define ICE_UP_TABLE_TRANSLATE(val, i) \
(((val) << ICE_AQ_VSI_UP_TABLE_UP##i##_S) & \
ICE_AQ_VSI_UP_TABLE_UP##i##_M)
* be changed at runtime
*/
netdev->hw_features |= NETIF_F_RXFCS;
+
+ netif_set_tso_max_size(netdev, ICE_MAX_TSO_SIZE);
}
/**
ice_trace(xmit_frame_ring, tx_ring, skb);
+ if (unlikely(ipv6_hopopt_jumbo_remove(skb)))
+ goto out_drop;
+
count = ice_xmit_desc_count(skb);
if (ice_chk_linearize(skb, count)) {
if (__skb_linearize(skb))