diff options
Diffstat (limited to 'usr/src/uts/common/io/vnic/vnic_dev.c')
| -rw-r--r-- | usr/src/uts/common/io/vnic/vnic_dev.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/usr/src/uts/common/io/vnic/vnic_dev.c b/usr/src/uts/common/io/vnic/vnic_dev.c index 57c02b0808..e532a551e7 100644 --- a/usr/src/uts/common/io/vnic/vnic_dev.c +++ b/usr/src/uts/common/io/vnic/vnic_dev.c @@ -456,6 +456,20 @@ vnic_dev_create(datalink_id_t vnic_id, datalink_id_t linkid, } else { vnic->vn_hcksum_txflags = 0; } + + /* + * Check for LSO capabilities. LSO implementations + * depend on hardware checksumming, so the same + * requirement is enforced here. + */ + if (vnic->vn_hcksum_txflags != 0) { + if (!mac_capab_get(vnic->vn_lower_mh, MAC_CAPAB_LSO, + &vnic->vn_cap_lso)) { + vnic->vn_cap_lso.lso_flags = 0; + } + } else { + vnic->vn_cap_lso.lso_flags = 0; + } } /* register with the MAC module */ @@ -826,6 +840,15 @@ vnic_m_capab_get(void *arg, mac_capab_t cap, void *cap_data) HCKSUM_INET_PARTIAL); break; } + case MAC_CAPAB_LSO: { + mac_capab_lso_t *cap_lso = cap_data; + + if (vnic->vn_cap_lso.lso_flags == 0) { + return (B_FALSE); + } + *cap_lso = vnic->vn_cap_lso; + break; + } case MAC_CAPAB_VNIC: { mac_capab_vnic_t *vnic_capab = cap_data; |