scsi/esas2r/esas2r_io.c

188 			      struct esas2r_sg_context *sgc)
190 	struct esas2r_request *rq = sgc->first_req;
193 	while (sgc->length) {
198 		len = (*sgc->get_phys_addr)(sgc, &addr);
204 		if (unlikely(len > sgc->length))
205 			len = sgc->length;
222 		if (unlikely(sgc->sge.a64.curr > sgc->sge.a64.limit)) {
237 			sgelen = (u8)((u8 *)sgc->sge.a64.curr
238 				      - (u8 *)sgc->sge.a64.last);
244 			memcpy(sgl->virt_addr, sgc->sge.a64.last, sgelen);
247 			sgc->sge.a64.curr =
252 			sgc->sge.a64.limit =
257 			sgc->sge.a64.last->length = cpu_to_le32(
259 			sgc->sge.a64.last->address =
268 			if (sgc->sge.a64.chain) {
269 				sgc->sge.a64.chain->length |=
271 						((u8 *)(sgc->sge.a64.
279 							 ((u8 *)sgc->
299 			sgc->sge.a64.chain = sgc->sge.a64.last;
306 		sgc->sge.a64.last = sgc->sge.a64.curr;
309 		sgc->sge.a64.curr->length = cpu_to_le32(SGE_ADDR_64 | len);
310 		sgc->sge.a64.curr->address = cpu_to_le32(addr);
311 		sgc->sge.a64.curr++;
312 		sgc->cur_offset += len;
313 		sgc->length -= len;
328 	sgc->sge.a64.last->length |= cpu_to_le32(SGE_LAST);
334 	if (sgc->sge.a64.chain) {
335 		sgc->sge.a64.chain->length |= cpu_to_le32(
336 			((u8 *)(sgc->sge.a64.curr) -
346 			((u16)((u8 *)sgc->sge.a64.last - (u8 *)vrq)
371 				  struct esas2r_sg_context *sgc)
373 	struct esas2r_request *rq = sgc->first_req;
380 	while (sgc->length) {
383 		len = (*sgc->get_phys_addr)(sgc, &addr);
390 		if (unlikely(len > sgc->length))
391 			len = sgc->length;
409 		if (sgc->sge.prd.sge_cnt == 0) {
410 			if (len == sgc->length) {
418 				sgc->sge.prd.curr->ctl_len = cpu_to_le32(
420 				sgc->sge.prd.curr->address = cpu_to_le64(addr);
423 				sgc->cur_offset += len;
424 				sgc->length -= len;
432 			if (sgc->sge.prd.chain) {
439 				sgc->sge.prd.chain->ctl_len |= cpu_to_le32(
440 					sgc->sge.prd.sgl_max_cnt);
467 			sgc->sge.prd.chain = sgc->sge.prd.curr;
469 			sgc->sge.prd.chain->ctl_len = cpu_to_le32(PRD_CHAIN);
470 			sgc->sge.prd.chain->address =
478 			sgc->sge.prd.curr =
482 			sgc->sge.prd.sge_cnt = sgc->sge.prd.sgl_max_cnt - 1;
485 		sgc->sge.prd.sge_cnt--;
487 		sgc->sge.prd.curr->ctl_len = cpu_to_le32(PRD_DATA | len);
488 		sgc->sge.prd.curr->address = cpu_to_le64(addr);
492 		sgc->sge.prd.curr++;
496 		sgc->cur_offset += len;
497 		sgc->length -= len;
513 		if (sgc->sge.prd.chain) {
514 			sgc->sge.prd.chain->ctl_len |=
515 				cpu_to_le32(sgc->sge.prd.sgl_max_cnt
516 					    - sgc->sge.prd.sge_cnt
525 			      struct esas2r_sg_context *sgc)
527 	struct esas2r_request *rq = sgc->first_req;
528 	u32 len = sgc->length;
596 			sgc->length = startlba * t->block_size;
602 			if (sgc->length > len)
603 				sgc->length = len;
605 			sgc->length = len;
608 		sgc->length = len;
614 		(struct atto_physical_region_description *)sgc->sge.a64.curr;
616 	sgc->sge.prd.sgl_max_cnt = sgl_page_size /
623 		sgc->sge.prd.sge_cnt = 0;
624 		sgc->sge.prd.chain = NULL;
625 		sgc->sge.prd.curr = curr_iblk_chn;
629 		len -= sgc->length;
633 		if (unlikely(!esas2r_build_prd_iblk(a, sgc)))
642 				sgc->length = t->inter_byte;
644 				sgc->length = len;