On Fri, Jul 24, 2015 at 11:18:21AM -0500, Steve Wise wrote: > Currently the sg tablesize, which dictates fast register page list > depth to use, does not take into account the limits of the rdma device. > So adjust it once we discover the device fastreg max depth limit. Also > adjust the max_sectors based on the resulting sg tablesize. Huh. How does this relate to the max_page_list_len argument: struct ib_mr *ib_alloc_fast_reg_mr(struct ib_pd *pd, int max_page_list_len) Shouldn't max_fast_reg_page_list_len be checked during the above? Ie does this still make sense: drivers/infiniband/ulp/iser/iser_verbs.c: desc->data_mr = ib_alloc_fast_reg_mr(pd, ISCSI_ISER_SG_TABLESIZE + 1); ? The only ULP that checks this is SRP, so basically, all our ULPs are probably quietly broken? cxgb3 has a limit of 10 (!?!?!!) Jason -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
