misc/genwqe/card_ddcb.c

109  *     pddcb->priv[6] = 0xcc;   # cleared
112  *     pddcb->priv[7] = 0xaa;	# appended
115  *     pddcb->priv[7] = 0xbb;   # tapped
118  *     pddcb->priv[6] = 0xff;	# finished
121 static inline void ddcb_mark_tapped(struct ddcb *pddcb)
123 	pddcb->priv[7] = 0xbb;  /* tapped */
126 static inline void ddcb_mark_appended(struct ddcb *pddcb)
128 	pddcb->priv[7] = 0xaa;	/* appended */
131 static inline void ddcb_mark_cleared(struct ddcb *pddcb)
133 	pddcb->priv[6] = 0xcc; /* cleared */
136 static inline void ddcb_mark_finished(struct ddcb *pddcb)
138 	pddcb->priv[6] = 0xff;	/* finished */
141 static inline void ddcb_mark_unused(struct ddcb *pddcb)
143 	pddcb->priv_64 = cpu_to_be64(0); /* not tapped */
166 	struct ddcb *pddcb;
176 	pddcb = queue->ddcb_vaddr;
182 			be16_to_cpu(pddcb->retc_16),
183 			be16_to_cpu(pddcb->seqnum_16),
184 			pddcb->hsi,
185 			pddcb->shi,
186 			be64_to_cpu(pddcb->priv_64),
187 			pddcb->cmd);
188 		pddcb++;
253  * @pddcb:      pointer to ddcb structure
266 			struct ddcb *pddcb, int ddcb_no)
279 	ddcb_mark_unused(pddcb);
290 	ddcb_mark_appended(pddcb);
308 	ddcb_mark_tapped(pddcb);
333 	struct ddcb *pddcb = &queue->ddcb_vaddr[req->num];
335 	memcpy(&req->cmd.asv[0], &pddcb->asv[0], DDCB_ASV_LENGTH);
338 	req->cmd.vcrc     = be16_to_cpu(pddcb->vcrc_16);
339 	req->cmd.deque_ts = be64_to_cpu(pddcb->deque_ts_64);
340 	req->cmd.cmplt_ts = be64_to_cpu(pddcb->cmplt_ts_64);
342 	req->cmd.attn     = be16_to_cpu(pddcb->attn_16);
343 	req->cmd.progress = be32_to_cpu(pddcb->progress_32);
344 	req->cmd.retc     = be16_to_cpu(pddcb->retc_16);
351 		memcpy(&req->debug_data.ddcb_finished, pddcb,
377 		struct ddcb *pddcb;
381 		pddcb = &queue->ddcb_vaddr[queue->ddcb_act];
383 		if ((pddcb->icrc_hsi_shi_32 & DDCB_COMPLETED_BE32) ==
405 		retc_16 = be16_to_cpu(pddcb->retc_16);
406 		if ((pddcb->hsi == 0x44) && (retc_16 <= 0x101)) {
408 			u64 ddcb_offs = (u64)pddcb - (u64)queue->ddcb_vaddr;
415 				__func__, be16_to_cpu(pddcb->seqnum_16),
416 				pddcb->hsi, retc_16, errcnts, status,
424 		genwqe_hexdump(pci_dev, pddcb, sizeof(*pddcb));
426 		ddcb_mark_finished(pddcb);
429 		vcrc = genwqe_crc16(pddcb->asv,
432 		vcrc_16 = be16_to_cpu(pddcb->vcrc_16);
437 				pddcb->pre, VCRC_LENGTH(req->cmd.asv_length),
507 		struct ddcb *pddcb;
526 		pddcb = &queue->ddcb_vaddr[req->num];
527 		genwqe_hexdump(pci_dev, pddcb, sizeof(*pddcb));
572 	struct ddcb *pddcb;
578 	pddcb = &queue->ddcb_vaddr[queue->ddcb_next];
582 	if ((pddcb->icrc_hsi_shi_32 & DDCB_COMPLETED_BE32) == 0x00000000)
589 	pu64 = (u64 *)pddcb;
600 	pddcb->pre = DDCB_PRESET_PRE; /* 128 */
601 	pddcb->seqnum_16 = cpu_to_be16(queue->ddcb_seq++);
602 	return pddcb;
622 	struct ddcb *pddcb = NULL;
638 	pddcb = &queue->ddcb_vaddr[req->num];
649 		old = pddcb->icrc_hsi_shi_32;	/* read SHI/HSI in BE32 */
653 			icrc_hsi_shi = cmpxchg(&pddcb->icrc_hsi_shi_32,
661 		icrc_hsi_shi = pddcb->icrc_hsi_shi_32;
683 		ddcb_mark_cleared(pddcb);
695 		icrc_hsi_shi = pddcb->icrc_hsi_shi_32;
713 	genwqe_hexdump(pci_dev, pddcb, sizeof(*pddcb));
757 	struct ddcb *pddcb;
787 	pddcb = get_next_ddcb(cd, queue, &req->num);	/* get ptr and num */
788 	if (pddcb == NULL) {
820 	pddcb->cmdopts_16 = cpu_to_be16(req->cmd.cmdopts);
821 	pddcb->cmd = req->cmd.cmd;
822 	pddcb->acfunc = req->cmd.acfunc;	/* functional unit */
833 		pddcb->xdir = 0x1;
835 		pddcb->xdir = 0x0;
838 	pddcb->psp = (((req->cmd.asiv_length / 8) << 4) |
840 	pddcb->disp_ts_64 = cpu_to_be64(req->cmd.disp_ts);
856 		memcpy(&pddcb->__asiv[0],	/* destination */
860 		pddcb->n.ats_64 = cpu_to_be64(req->cmd.ats);
861 		memcpy(&pddcb->n.asiv[0],	/* destination */
866 	pddcb->icrc_hsi_shi_32 = cpu_to_be32(0x00000000); /* for crc */
872 	icrc = genwqe_crc16((const u8 *)pddcb,
874 	pddcb->icrc_hsi_shi_32 = cpu_to_be32((u32)icrc << 16);
878 		pddcb->icrc_hsi_shi_32 |= DDCB_INTR_BE32;
881 	genwqe_hexdump(pci_dev, pddcb, sizeof(*pddcb));
888 		memcpy(&req->debug_data.ddcb_before, pddcb,
892 	enqueue_ddcb(cd, queue, pddcb, req->num);
980 	struct ddcb *pddcb;
990 	pddcb = &queue->ddcb_vaddr[queue->ddcb_act];
991 	if (pddcb->icrc_hsi_shi_32 & DDCB_COMPLETED_BE32) { /* ddcb ready */
1024 	struct ddcb *pddcb;
1065 		pddcb = &queue->ddcb_vaddr[i];		     /* DDCBs */
1066 		pddcb->icrc_hsi_shi_32 = DDCB_COMPLETED_BE32;
1067 		pddcb->retc_16 = cpu_to_be16(0xfff);