Hi,
During the NICDrv load_unload test, we recently notice that, recent OpenSolaris
release (nv119, 121) requests the driver to send large packet (larger than mtu)
but does not indicate TSO/LSO offload. Earlier version of OpenSolaris, like
nv112, do not have this issue. I am afraid this is a new bug of OpenSolaris.
Below are our code in the sending path and what we found:
hcksum_retrieve(mp, NULL, NULL, NULL, NULL, NULL, NULL, &pflags);
if (pflags != 0) {
uint32_t lso_flags = 0;
lso_info_get(mp, &mss, &lso_flags);
use_lso = (lso_flags == HW_LSO);
} else {
if (total_len > 1536) {
cmn_err(CE_WARN, "large Tx packet: %d\n", total_len);
}
}
Sep 10 15:17:19 euclid qlge: WARNING: large Tx packet: 65066
Sep 10 15:17:19 euclid last message repeated 1 time
Sep 10 15:17:19 euclid qlge: WARNING: large Tx packet: 1674
Sep 10 15:17:19 euclid qlge: WARNING: large Tx packet: 2962
Sep 10 15:17:19 euclid last message repeated 20 times
Sep 10 15:17:19 euclid qlge: WARNING: large Tx packet: 2642
Sep 10 15:17:19 euclid qlge: WARNING: large Tx packet: 65066
Sep 10 15:17:19 euclid qlge: WARNING: large Tx packet: 3122
Sep 10 15:17:19 euclid qlge: WARNING: large Tx packet: 2962
Sep 10 15:17:19 euclid last message repeated 12 times
Sep 10 15:17:19 euclid qlge: WARNING: large Tx packet: 65066
Sep 10 15:17:19 euclid qlge: WARNING: large Tx packet: 2962
Sep 10 15:17:19 euclid last message repeated 7 times
Sep 10 15:17:19 euclid qlge: WARNING: large Tx packet: 65066
Sep 10 15:17:19 euclid qlge: WARNING: large Tx packet: 1674
Sep 10 15:17:19 euclid qlge: WARNING: large Tx packet: 2962
Sep 10 15:17:19 euclid last message repeated 20 times
Sep 10 15:17:19 euclid qlge: WARNING: large Tx packet: 2642
Sep 10 15:17:19 euclid qlge: WARNING: large Tx packet: 65066
Sep 10 15:17:19 euclid qlge: NOTICE: ql_bringdown_adapter(0): entered
Sep 10 15:17:22 euclid qlge: NOTICE: reset adapter
Sep 10 15:17:22 euclid qlge: NOTICE: ql_bringdown_adapter(0): done
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