780 static inline int cds_check_len(CcwDataStream *cds, int len)  in cds_check_len()  argument
782     if (cds->at_byte + len > cds->count) {  in cds_check_len()
783         cds->flags |= CDS_F_STREAM_BROKEN;  in cds_check_len()
785     return cds->flags & CDS_F_STREAM_BROKEN ? -EINVAL : len;  in cds_check_len()
793 static int ccw_dstream_rw_noflags(CcwDataStream *cds, void *buff, int len,  in ccw_dstream_rw_noflags()  argument
798     ret = cds_check_len(cds, len);  in ccw_dstream_rw_noflags()
802     if (!cds_ccw_addrs_ok(cds->cda, len, cds->flags & CDS_F_FMT)) {  in ccw_dstream_rw_noflags()
808     if (!cds->do_skip) {  in ccw_dstream_rw_noflags()
809         ret = address_space_rw(&address_space_memory, cds->cda,  in ccw_dstream_rw_noflags()
815         cds->flags |= CDS_F_STREAM_BROKEN;  in ccw_dstream_rw_noflags()
819     cds->at_byte += len;  in ccw_dstream_rw_noflags()
820     cds->cda += len;  in ccw_dstream_rw_noflags()
838 static inline int ida_read_next_idaw(CcwDataStream *cds)  in ida_read_next_idaw()  argument
843     bool idaw_fmt2 = cds->flags & CDS_F_C64;  in ida_read_next_idaw()
844     bool ccw_fmt1 = cds->flags & CDS_F_FMT;  in ida_read_next_idaw()
847         idaw_addr = cds->cda_orig + sizeof(idaw.fmt2) * cds->at_idaw;  in ida_read_next_idaw()
854         cds->cda = be64_to_cpu(idaw.fmt2);  in ida_read_next_idaw()
856         idaw_addr = cds->cda_orig + sizeof(idaw.fmt1) * cds->at_idaw;  in ida_read_next_idaw()
863         cds->cda = be64_to_cpu(idaw.fmt1);  in ida_read_next_idaw()
864         if (cds->cda & 0x80000000) {  in ida_read_next_idaw()
868     ++(cds->at_idaw);  in ida_read_next_idaw()
876 static int ccw_dstream_rw_ida(CcwDataStream *cds, void *buff, int len,  in ccw_dstream_rw_ida()  argument
879     uint64_t bsz = ccw_ida_block_size(cds->flags);  in ccw_dstream_rw_ida()
883     ret = cds_check_len(cds, len);  in ccw_dstream_rw_ida()
887     if (!cds->at_idaw) {  in ccw_dstream_rw_ida()
889         ret = ida_read_next_idaw(cds);  in ccw_dstream_rw_ida()
893         cont_left = ida_continuous_left(cds->cda, bsz);  in ccw_dstream_rw_ida()
895         cont_left = ida_continuous_left(cds->cda, bsz);  in ccw_dstream_rw_ida()
897             ret = ida_read_next_idaw(cds);  in ccw_dstream_rw_ida()
901             if (cds->cda & (bsz - 1)) {  in ccw_dstream_rw_ida()
910             if (!cds->do_skip) {  in ccw_dstream_rw_ida()
911                 ret = address_space_rw(&address_space_memory, cds->cda,  in ccw_dstream_rw_ida()
923         cds->at_byte += iter_len;  in ccw_dstream_rw_ida()
924         cds->cda += iter_len;  in ccw_dstream_rw_ida()
929         ret = ida_read_next_idaw(cds);  in ccw_dstream_rw_ida()
937     cds->flags |= CDS_F_STREAM_BROKEN;  in ccw_dstream_rw_ida()
941 void ccw_dstream_init(CcwDataStream *cds, CCW1 const *ccw, ORB const *orb)  in ccw_dstream_init()  argument
948     cds->flags = (orb->ctrl0 & ORB_CTRL0_MASK_I2K ? CDS_F_I2K : 0) |  in ccw_dstream_init()
953     cds->count = ccw->count;  in ccw_dstream_init()
954     cds->cda_orig = ccw->cda;  in ccw_dstream_init()
956     cds->do_skip = (ccw->flags & CCW_FLAG_SKIP) &&  in ccw_dstream_init()
960     ccw_dstream_rewind(cds);  in ccw_dstream_init()
961     if (!(cds->flags & CDS_F_IDA)) {  in ccw_dstream_init()
962         cds->op_handler = ccw_dstream_rw_noflags;  in ccw_dstream_init()
964         cds->op_handler = ccw_dstream_rw_ida;  in ccw_dstream_init()
1019     ccw_dstream_init(&sch->cds, &ccw, &(sch->orb));  in css_interpret_ccw()
1033         ret = ccw_dstream_write_buf(&sch->cds, sch->sense_data, len);  in css_interpret_ccw()
1034         sch->curr_status.scsw.count = ccw_dstream_residual_count(&sch->cds);  in css_interpret_ccw()
1062         ret = ccw_dstream_write_buf(&sch->cds, sense_id, len);  in css_interpret_ccw()
1064             sch->curr_status.scsw.count = ccw_dstream_residual_count(&sch->cds);  in css_interpret_ccw()