5  *  Copyright (c) 2001-2013 ATTO Technology, Inc.
21  * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
40  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
102 #define ESAS2R_COPYRIGHT_YEARS "2001-2013"
127 #define MAKEWORD(lo, hi) ((u16)((u8)(lo) | ((u16)(u8)(hi) << 8)))  argument
132 #define MAKEDWORD(lo, hi) ((u32)((u16)(lo) | ((u32)(u16)(hi) << 16)))  argument
135 #define LOBIT(x) ((x) & (0 - (x)))
142 	readl((void __iomem *)a->regs + (reg) + MW_REG_OFFSET_HWREG)
145 	writel(data, (void __iomem *)(a->regs + (reg) + MW_REG_OFFSET_HWREG))
154 	readb((void __iomem *)a->data_window + (reg))
188 #define FLS_LENGTH_BOOT (FLS_OFFSET_CPYR - FLS_OFFSET_BOOT)
208 #define MW_REG_PCI_HWREG_DELTA  (MW_REG_OFFSET_PCI - MW_REG_OFFSET_HWREG)
691 	struct esas2r_flash_img *fi;  member
1069 bool esas2r_fm_api(struct esas2r_adapter *a, struct esas2r_flash_img *fi,
1150 	spin_lock_irqsave(&a->sg_list_lock, flags);  in esas2r_alloc_sgl()
1151 	if (likely(!list_empty(&a->free_sg_list_head))) {  in esas2r_alloc_sgl()
1152 		sgl = a->free_sg_list_head.next;  in esas2r_alloc_sgl()
1156 	spin_unlock_irqrestore(&a->sg_list_lock, flags);  in esas2r_alloc_sgl()
1167 	sgc->adapter = a;  in esas2r_sgc_init()
1168 	sgc->first_req = rq;  in esas2r_sgc_init()
1174 	sgc->sge.a64.limit = (struct atto_vda_sge *)((u8 *)rq->vrq  in esas2r_sgc_init()
1178 						     - sizeof(struct  in esas2r_sgc_init()
1181 		sgc->sge.a64.last =  in esas2r_sgc_init()
1182 			sgc->sge.a64.curr = first;  in esas2r_sgc_init()
1183 		rq->vrq->scsi.sg_list_offset = (u8)  in esas2r_sgc_init()
1184 					       ((u8 *)first -  in esas2r_sgc_init()
1185 						(u8 *)rq->vrq);  in esas2r_sgc_init()
1187 		sgc->sge.a64.last =  in esas2r_sgc_init()
1188 			sgc->sge.a64.curr = &rq->vrq->scsi.u.sge[0];  in esas2r_sgc_init()
1189 		rq->vrq->scsi.sg_list_offset =  in esas2r_sgc_init()
1192 	sgc->sge.a64.chain = NULL;  in esas2r_sgc_init()
1198 	union atto_vda_req *vrq = rq->vrq;  in esas2r_rq_init_request()
1200 	INIT_LIST_HEAD(&rq->sg_table_head);  in esas2r_rq_init_request()
1201 	rq->data_buf = (void *)(vrq + 1);  in esas2r_rq_init_request()
1202 	rq->interrupt_cb = NULL;  in esas2r_rq_init_request()
1203 	rq->comp_cb = esas2r_complete_request_cb;  in esas2r_rq_init_request()
1204 	rq->flags = 0;  in esas2r_rq_init_request()
1205 	rq->timeout = 0;  in esas2r_rq_init_request()
1206 	rq->req_stat = RS_PENDING;  in esas2r_rq_init_request()
1207 	rq->req_type = RT_INI_REQ;  in esas2r_rq_init_request()
1210 	rq->func_rsp.dwords[0] = 0;  in esas2r_rq_init_request()
1211 	rq->func_rsp.dwords[1] = 0;  in esas2r_rq_init_request()
1220 	rq->vda_req_sz = RQ_SIZE_DEFAULT;  in esas2r_rq_init_request()
1222 	/* req_table entry should be NULL at this point - if not, halt */  in esas2r_rq_init_request()
1224 	if (a->req_table[LOWORD(vrq->scsi.handle)]) {  in esas2r_rq_init_request()
1231 	a->req_table[LOWORD(vrq->scsi.handle)] = rq;  in esas2r_rq_init_request()
1237 	vrq->scsi.handle = (a->cmd_ref_no++ << 16) | (u16)vrq->scsi.handle;  in esas2r_rq_init_request()
1244 	vrq->scsi.function = VDA_FUNC_SCSI;  in esas2r_rq_init_request()
1245 	vrq->scsi.sense_len = SENSE_DATA_SZ;  in esas2r_rq_init_request()
1248 	vrq->scsi.sg_list_offset = 0;  in esas2r_rq_init_request()
1249 	vrq->scsi.chain_offset = 0;  in esas2r_rq_init_request()
1250 	vrq->scsi.flags = 0;  in esas2r_rq_init_request()
1251 	vrq->scsi.reserved = 0;  in esas2r_rq_init_request()
1254 	vrq->scsi.ppsense_buf  in esas2r_rq_init_request()
1255 		= cpu_to_le64(rq->vrq_md->phys_addr +  in esas2r_rq_init_request()
1264 	if (list_empty(&rq->sg_table_head))  in esas2r_rq_free_sg_lists()
1267 	spin_lock_irqsave(&a->sg_list_lock, flags);  in esas2r_rq_free_sg_lists()
1268 	list_splice_tail_init(&rq->sg_table_head, &a->free_sg_list_head);  in esas2r_rq_free_sg_lists()
1269 	spin_unlock_irqrestore(&a->sg_list_lock, flags);  in esas2r_rq_free_sg_lists()
1277 	a->req_table[LOWORD(rq->vrq->scsi.handle)] = NULL;  in esas2r_rq_destroy_request()
1278 	rq->data_buf = NULL;  in esas2r_rq_destroy_request()
1284 	return test_bit(AF_BUSRST_NEEDED, &a->flags) ||  in esas2r_is_tasklet_pending()
1285 	       test_bit(AF_BUSRST_DETECTED, &a->flags) ||  in esas2r_is_tasklet_pending()
1286 	       test_bit(AF_CHPRST_NEEDED, &a->flags) ||  in esas2r_is_tasklet_pending()
1287 	       test_bit(AF_CHPRST_DETECTED, &a->flags) ||  in esas2r_is_tasklet_pending()
1288 	       test_bit(AF_PORT_CHANGE, &a->flags);  in esas2r_is_tasklet_pending()
1302 	if (unlikely(le32_to_cpu(rq->vrq->scsi.length) == 0))  in esas2r_build_sg_list()
1305 	return (*a->build_sgl)(a, sgc);  in esas2r_build_sg_list()
1310 	if (atomic_inc_return(&a->dis_ints_cnt) == 1)  in esas2r_disable_chip_interrupts()
1317 	if (atomic_dec_return(&a->dis_ints_cnt) == 0)  in esas2r_enable_chip_interrupts()
1322 /* Schedule a TASKLET to perform non-interrupt tasks that may require delays
1328 	if (!test_and_set_bit(AF_TASKLET_SCHEDULED, &a->flags))  in esas2r_schedule_tasklet()
1329 		tasklet_hi_schedule(&a->tasklet);  in esas2r_schedule_tasklet()
1334 	if (!test_bit(AF_DEGRADED_MODE, &a->flags) &&  in esas2r_enable_heartbeat()
1335 	    !test_bit(AF_CHPRST_PENDING, &a->flags) &&  in esas2r_enable_heartbeat()
1336 	    (a->nvram->options2 & SASNVR2_HEARTBEAT))  in esas2r_enable_heartbeat()
1337 		set_bit(AF_HEARTBEAT_ENB, &a->flags);  in esas2r_enable_heartbeat()
1339 		clear_bit(AF_HEARTBEAT_ENB, &a->flags);  in esas2r_enable_heartbeat()
1344 	clear_bit(AF_HEARTBEAT_ENB, &a->flags);  in esas2r_disable_heartbeat()
1345 	clear_bit(AF_HEARTBEAT, &a->flags);  in esas2r_disable_heartbeat()
1355 	set_bit(AF_CHPRST_NEEDED, &a->flags);  in esas2r_local_reset_adapter()
1356 	set_bit(AF_CHPRST_PENDING, &a->flags);  in esas2r_local_reset_adapter()
1357 	set_bit(AF_DISC_PENDING, &a->flags);  in esas2r_local_reset_adapter()
1365 	if (a->int_mask == 0)  in esas2r_adapter_interrupt_pending()
1370 	if ((intstat & a->int_mask) == 0)  in esas2r_adapter_interrupt_pending()
1375 	a->int_stat = intstat;  in esas2r_adapter_interrupt_pending()
1376 	a->int_mask = 0;  in esas2r_adapter_interrupt_pending()
1384 	return (u16)(uintptr_t)(t - a->targetdb);  in esas2r_targ_get_id()
1395 	spin_lock_irqsave(&a->queue_lock, flags);  in esas2r_start_ae_request()
1397 	spin_unlock_irqrestore(&a->queue_lock, flags);  in esas2r_start_ae_request()