I'm looking for the information about vikings age pottery. I checked Edwards( The Archaeology of Early Medieval Ireland) and Laing(The Archaeology of Celtic Britain and Ireland).
All I found there for the period is about Souterrain Ware. Functional part of souterrain ware is fine: there are cooking pots and tableware found. However distribution is rather surprising: finds are limited to north-east Ireland (or just east if you take into account finds from co Wicklow etc).
Writing about native pottery in early medieval Ireland, Edwards also mentions coarse black pottery from Lagore, sherds of similar type from Moynagh Lough and two different types of pottery from Reask.
May be the books are old enough and there are some new finds I didn't track yet?
EMAP report gives very interesting piece:
Imported Pottery:
There is little evidence for imported pottery for a large part of this period(AD 800-1150). This may partly be
due to the expansion of native-made material such as souterrain ware, everted-rim ware,
crannog ware and Leinster cooking ware. The suggested change from ceramic amphorae to
wooden butts for wine transportation would also have had a major impact on the spread of
exotic pottery in Ireland.
Do you have more information/sources to look at?