@@ -11,10 +11,8 @@
* ----------------------------------------------------------------------
* | Level | Last Value Used | Holes |
* ----------------------------------------------------------------------
- * | Module Init and Probe | 0x0193 | 0x0146 |
- * | | | 0x015b-0x0160 |
- * | | | 0x016e |
- * | Mailbox commands | 0x1206 | 0x11a2-0x11ff |
+ * | Module Init and Probe | 0x0199 | |
+ * | Mailbox commands | 0x1206 | 0x11a5-0x11ff |
* | Device Discovery | 0x2134 | 0x210e-0x2116 |
* | | | 0x211a |
* | | | 0x211c-0x2128 |
@@ -26,11 +24,7 @@
* | | | 0x3036,0x3038 |
* | | | 0x303a |
* | DPC Thread | 0x4023 | 0x4002,0x4013 |
- * | Async Events | 0x5090 | 0x502b-0x502f |
- * | | | 0x5047 |
- * | | | 0x5084,0x5075 |
- * | | | 0x503d,0x5044 |
- * | | | 0x505f |
+ * | Async Events | 0x509c | |
* | Timer Routines | 0x6012 | |
* | User Space Interactions | 0x70e3 | 0x7018,0x702e |
* | | | 0x7020,0x7024 |
@@ -2752,7 +2746,6 @@ ql_dump_regs(uint level, scsi_qla_host_t *vha, uint id)
"mbox[%d] %#04x\n", i, RD_REG_WORD(mbx_reg));
}
-
void
ql_dump_buffer(uint level, scsi_qla_host_t *vha, uint id, const void *buf,
uint size)
@@ -1020,6 +1020,7 @@ static inline bool qla2xxx_is_valid_mbs(unsigned int mbs)
#define MBA_LIP_F8 0x8016 /* Received a LIP F8. */
#define MBA_LOOP_INIT_ERR 0x8017 /* Loop Initialization Error. */
#define MBA_FABRIC_AUTH_REQ 0x801b /* Fabric Authentication Required. */
+#define MBA_CONGN_NOTI_RECV 0x801e /* Congestion Notification Received */
#define MBA_SCSI_COMPLETION 0x8020 /* SCSI Command Complete. */
#define MBA_CTIO_COMPLETION 0x8021 /* CTIO Complete. */
#define MBA_IP_COMPLETION 0x8022 /* IP Transmit Command Complete. */
@@ -1480,6 +1481,25 @@ typedef struct {
uint8_t reserved_3[26];
} init_cb_t;
+/* Special Features Control Block */
+struct init_sf_cb {
+ uint8_t format;
+ uint8_t reserved0;
+ /*
+ * BIT 15-14 = Reserved
+ * BIT_13 = SAN Congestion Management (1 - Enabled, 0 - Disabled)
+ * BIT_12 = Remote Write Optimization (1 - Enabled, 0 - Disabled)
+ * BIT 11-0 = Reserved
+ */
+ uint16_t flags;
+ uint8_t reserved1[32];
+ uint16_t discard_OHRB_timeout_value;
+ uint16_t remote_write_opt_queue_num;
+ uint8_t reserved2[40];
+ uint8_t scm_related_parameter[16];
+ uint8_t reserved3[32];
+};
+
/*
* Get Link Status mailbox command return buffer.
*/
@@ -2153,6 +2173,8 @@ typedef struct {
struct dsd64 rsp_dsd;
} ms_iocb_entry_t;
+#define SCM_EDC_ACC_RECEIVED BIT_6
+#define SCM_RDF_ACC_RECEIVED BIT_7
/*
* ISP queue - Mailbox Command entry structure definition.
@@ -3822,6 +3844,12 @@ struct qla_hw_data {
uint32_t n2n_bigger:1;
uint32_t secure_adapter:1;
uint32_t secure_fw:1;
+ /* Supported by Adapter */
+ uint32_t scm_supported_a:1;
+ /* Supported by Firmware */
+ uint32_t scm_supported_f:1;
+ /* Enabled in Driver */
+ uint32_t scm_enabled:1;
} flags;
uint16_t max_exchg;
@@ -4139,6 +4167,13 @@ struct qla_hw_data {
int init_cb_size;
dma_addr_t ex_init_cb_dma;
struct ex_init_cb_81xx *ex_init_cb;
+ dma_addr_t sf_init_cb_dma;
+ struct init_sf_cb *sf_init_cb;
+
+ void *scm_fpin_els_buff;
+ uint64_t scm_fpin_els_buff_size;
+ bool scm_fpin_valid;
+ bool scm_fpin_payload_size;
void *async_pd;
dma_addr_t async_pd_dma;
@@ -4201,6 +4236,12 @@ struct qla_hw_data {
#define FW_ATTR_H_NVME BIT_10
#define FW_ATTR_H_NVME_UPDATED BIT_14
+ /* About firmware SCM support */
+#define FW_ATTR_EXT0_SCM_SUPPORTED BIT_12
+ /* Brocade fabric attached */
+#define FW_ATTR_EXT0_SCM_BROCADE 0x00001000
+ /* Cisco fabric attached */
+#define FW_ATTR_EXT0_SCM_CISCO 0x00002000
uint16_t fw_attributes_ext[2];
uint32_t fw_memory_size;
uint32_t fw_transfer_size;
@@ -4511,6 +4552,15 @@ struct purex_item {
} iocb;
};
+#define SCM_FLAG_RDF_REJECT 0x00
+#define SCM_FLAG_RDF_COMPLETED 0x01
+
+#define QLA_CON_PRIMITIVE_RECEIVED 0x1
+#define QLA_CONGESTION_ARB_WARNING 0x1
+#define QLA_CONGESTION_ARB_ALARM 0X2
+struct qla_scm_port {
+} __packed;
+
/*
* Qlogic scsi host structure
*/
@@ -4719,6 +4769,7 @@ typedef struct scsi_qla_host {
__le16 dport_data[4];
struct list_head gpnid_list;
struct fab_scan scan;
+ uint8_t scm_fabric_connection_flags;
unsigned int irq_offset;
} scsi_qla_host_t;
@@ -723,6 +723,8 @@ struct ct_entry_24xx {
struct dsd64 dsd[2];
};
+#define PURX_ELS_HEADER_SIZE 0x18
+
/*
* ISP queue - PUREX IOCB entry structure definition
*/
@@ -2020,7 +2022,9 @@ struct nvram_81xx {
* BIT 0 = Extended BB credits for LR
* BIT 1 = Virtual Fabric Enable
* BIT 2-5 = Distance Support if BIT 0 is on
- * BIT 6-15 = Unused
+ * BIT 6 = Prefer FCP
+ * BIT 7 = SCM Disabled if BIT is set (1)
+ * BIT 8-15 = Unused
*/
uint16_t enhanced_features;
@@ -127,6 +127,7 @@ int qla_post_iidma_work(struct scsi_qla_host *vha, fc_port_t *fcport);
void qla_do_iidma_work(struct scsi_qla_host *vha, fc_port_t *fcport);
int qla2x00_reserve_mgmt_server_loop_id(scsi_qla_host_t *);
void qla_rscn_replay(fc_port_t *fcport);
+void qla24xx_free_purex_item(struct purex_item *item);
extern bool qla24xx_risc_firmware_invalid(uint32_t *);
/*
@@ -3752,7 +3752,7 @@ qla2x00_setup_chip(scsi_qla_host_t *vha)
}
/* Enable PUREX PASSTHRU */
- if (ql2xrdpenable)
+ if (ql2xrdpenable || ha->flags.scm_supported_f)
qla25xx_set_els_cmds_supported(vha);
} else
goto failed;
@@ -3965,7 +3965,7 @@ qla24xx_update_fw_options(scsi_qla_host_t *vha)
ha->fw_options[2] &= ~BIT_8;
}
- if (ql2xrdpenable)
+ if (ql2xrdpenable || ha->flags.scm_supported_f)
ha->fw_options[1] |= ADD_FO1_ENABLE_PUREX_IOCB;
/* Enable Async 8130/8131 events -- transceiver insertion/removal */
@@ -8514,6 +8514,11 @@ qla81xx_nvram_config(scsi_qla_host_t *vha)
icb->node_name[0] &= 0xF0;
}
+ if (IS_QLA28XX(ha) || IS_QLA27XX(ha)) {
+ if ((nv->enhanced_features & BIT_7) == 0)
+ ha->flags.scm_supported_a = 1;
+ }
+
/* Set host adapter parameters. */
ha->flags.disable_risc_code_load = 0;
ha->flags.enable_lip_reset = 0;
@@ -22,6 +22,31 @@ static void qla2x00_status_entry(scsi_qla_host_t *, struct rsp_que *, void *);
static void qla2x00_status_cont_entry(struct rsp_que *, sts_cont_entry_t *);
static int qla2x00_error_entry(scsi_qla_host_t *, struct rsp_que *,
sts_entry_t *);
+static void qla27xx_process_purex_fpin(struct scsi_qla_host *vha,
+ struct purex_item *item);
+static struct purex_item *qla24xx_alloc_purex_item(scsi_qla_host_t *vha,
+ uint16_t size);
+static struct purex_item *qla24xx_copy_std_pkt(struct scsi_qla_host *vha,
+ void *pkt);
+static struct purex_item *qla27xx_copy_fpin_pkt(struct scsi_qla_host *vha,
+ void **pkt, struct rsp_que **rsp);
+
+static void
+qla27xx_process_purex_fpin(struct scsi_qla_host *vha, struct purex_item *item)
+{
+ void *pkt = &item->iocb;
+ uint16_t pkt_size = item->size;
+
+ ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x508d,
+ "%s: Enter\n", __func__);
+
+ ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x508e,
+ "-------- ELS REQ -------\n");
+ ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x508f,
+ pkt, pkt_size);
+
+ fc_host_fpin_rcv(vha->host, pkt_size, (char *)pkt);
+}
const char *const port_state_str[] = {
"Unknown",
@@ -822,7 +847,7 @@ qla24xx_queue_purex_item(scsi_qla_host_t *vha, struct purex_item *pkt,
* @vha: SCSI driver HA context
* @pkt: ELS packet
*/
-struct purex_item
+static struct purex_item
*qla24xx_copy_std_pkt(struct scsi_qla_host *vha, void *pkt)
{
struct purex_item *item;
@@ -836,6 +861,111 @@ struct purex_item
return item;
}
+/**
+ * qla27xx_copy_fpin_pkt() - Copy over fpin packets that can
+ * span over multiple IOCBs.
+ * @vha: SCSI driver HA context
+ * @pkt: ELS packet
+ * @rsp: Response queue
+ */
+static struct purex_item *
+qla27xx_copy_fpin_pkt(struct scsi_qla_host *vha, void **pkt,
+ struct rsp_que **rsp)
+{
+ struct purex_entry_24xx *purex = *pkt;
+ struct rsp_que *rsp_q = *rsp;
+ sts_cont_entry_t *new_pkt;
+ uint16_t no_bytes = 0, total_bytes = 0, pending_bytes = 0;
+ uint16_t buffer_copy_offset = 0;
+ uint16_t entry_count, entry_count_remaining;
+ struct purex_item *item;
+ void *fpin_pkt = NULL;
+
+ total_bytes = le16_to_cpu(purex->frame_size & 0x0FFF)
+ - PURX_ELS_HEADER_SIZE;
+ pending_bytes = total_bytes;
+ entry_count = entry_count_remaining = purex->entry_count;
+ no_bytes = (pending_bytes > sizeof(purex->els_frame_payload)) ?
+ sizeof(purex->els_frame_payload) : pending_bytes;
+ ql_log(ql_log_info, vha, 0x509a,
+ "FPIN ELS, frame_size 0x%x, entry count %d\n",
+ total_bytes, entry_count);
+
+ item = qla24xx_alloc_purex_item(vha, total_bytes);
+ if (!item)
+ return item;
+
+ fpin_pkt = &item->iocb;
+
+ memcpy(fpin_pkt, &purex->els_frame_payload[0], no_bytes);
+ buffer_copy_offset += no_bytes;
+ pending_bytes -= no_bytes;
+ --entry_count_remaining;
+
+ ((response_t *)purex)->signature = RESPONSE_PROCESSED;
+ wmb();
+
+ do {
+ while ((total_bytes > 0) && (entry_count_remaining > 0)) {
+ if (rsp_q->ring_ptr->signature == RESPONSE_PROCESSED) {
+ ql_dbg(ql_dbg_async, vha, 0x5084,
+ "Ran out of IOCBs, partial data 0x%x\n",
+ buffer_copy_offset);
+ cpu_relax();
+ continue;
+ }
+
+ new_pkt = (sts_cont_entry_t *)rsp_q->ring_ptr;
+ *pkt = new_pkt;
+
+ if (new_pkt->entry_type != STATUS_CONT_TYPE) {
+ ql_log(ql_log_warn, vha, 0x507a,
+ "Unexpected IOCB type, partial data 0x%x\n",
+ buffer_copy_offset);
+ break;
+ }
+
+ rsp_q->ring_index++;
+ if (rsp_q->ring_index == rsp_q->length) {
+ rsp_q->ring_index = 0;
+ rsp_q->ring_ptr = rsp_q->ring;
+ } else {
+ rsp_q->ring_ptr++;
+ }
+ no_bytes = (pending_bytes > sizeof(new_pkt->data)) ?
+ sizeof(new_pkt->data) : pending_bytes;
+ if ((buffer_copy_offset + no_bytes) <= total_bytes) {
+ memcpy(((uint8_t *)fpin_pkt +
+ buffer_copy_offset), new_pkt->data,
+ no_bytes);
+ buffer_copy_offset += no_bytes;
+ pending_bytes -= no_bytes;
+ --entry_count_remaining;
+ } else {
+ ql_log(ql_log_warn, vha, 0x5044,
+ "Attempt to copy more that we got, optimizing..%x\n",
+ buffer_copy_offset);
+ memcpy(((uint8_t *)fpin_pkt +
+ buffer_copy_offset), new_pkt->data,
+ total_bytes - buffer_copy_offset);
+ }
+
+ ((response_t *)new_pkt)->signature = RESPONSE_PROCESSED;
+ wmb();
+ }
+
+ if (pending_bytes != 0 || entry_count_remaining != 0) {
+ ql_log(ql_log_fatal, vha, 0x508b,
+ "Dropping partial FPIN, underrun bytes = 0x%x, entry cnts 0x%x\n",
+ total_bytes, entry_count_remaining);
+ qla24xx_free_purex_item(item);
+ return NULL;
+ }
+ } while (entry_count_remaining > 0);
+ host_to_fcp_swap((uint8_t *)&item->iocb, total_bytes);
+ return item;
+}
+
/**
* qla2x00_async_event() - Process aynchronous events.
* @vha: SCSI driver HA context
@@ -1350,6 +1480,19 @@ qla2x00_async_event(scsi_qla_host_t *vha, struct rsp_que *rsp, uint16_t *mb)
qla2x00_post_aen_work(vha, FCH_EVT_RSCN, rscn_entry);
}
break;
+ case MBA_CONGN_NOTI_RECV:
+ if (!ha->flags.scm_enabled ||
+ mb[1] != QLA_CON_PRIMITIVE_RECEIVED)
+ break;
+
+ if (mb[2] == QLA_CONGESTION_ARB_WARNING) {
+ ql_dbg(ql_dbg_async, vha, 0x509b,
+ "Congestion Warning %04x %04x.\n", mb[1], mb[2]);
+ } else if (mb[2] == QLA_CONGESTION_ARB_ALARM) {
+ ql_log(ql_log_warn, vha, 0x509b,
+ "Congestion Alarm %04x %04x.\n", mb[1], mb[2]);
+ }
+ break;
/* case MBA_RIO_RESPONSE: */
case MBA_ZIO_RESPONSE:
ql_dbg(ql_dbg_async, vha, 0x5015,
@@ -3279,6 +3422,7 @@ void qla24xx_process_response_queue(struct scsi_qla_host *vha,
{
struct sts_entry_24xx *pkt;
struct qla_hw_data *ha = vha->hw;
+ struct purex_entry_24xx *purex_entry;
struct purex_item *pure_item;
if (!ha->flags.fw_started)
@@ -3334,7 +3478,6 @@ void qla24xx_process_response_queue(struct scsi_qla_host *vha,
pure_item = qla24xx_copy_std_pkt(vha, pkt);
if (!pure_item)
break;
-
qla24xx_queue_purex_item(vha, pure_item,
qla24xx_process_abts);
break;
@@ -3384,29 +3527,39 @@ void qla24xx_process_response_queue(struct scsi_qla_host *vha,
(struct vp_ctrl_entry_24xx *)pkt);
break;
case PUREX_IOCB_TYPE:
- {
- struct purex_entry_24xx *purex = (void *)pkt;
-
- if (purex->els_frame_payload[3] != ELS_COMMAND_RDP) {
- ql_dbg(ql_dbg_init, vha, 0x5091,
- "Discarding ELS Request opcode %#x...\n",
- purex->els_frame_payload[3]);
+ purex_entry = (void *)pkt;
+ switch (purex_entry->els_frame_payload[3]) {
+ case ELS_COMMAND_RDP:
+ pure_item = qla24xx_copy_std_pkt(vha, pkt);
+ if (!pure_item)
+ break;
+ qla24xx_queue_purex_item(vha, pure_item,
+ qla24xx_process_purex_rdp);
break;
- }
- pure_item = qla24xx_copy_std_pkt(vha, pkt);
- if (!pure_item)
+ case ELS_COMMAND_FPIN:
+ if (!vha->hw->flags.scm_enabled) {
+ ql_log(ql_log_warn, vha, 0x5094,
+ "SCM not active for this port\n");
+ break;
+ }
+ pure_item = qla27xx_copy_fpin_pkt(vha,
+ (void **)&pkt, &rsp);
+ if (!pure_item)
+ break;
+ qla24xx_queue_purex_item(vha, pure_item,
+ qla27xx_process_purex_fpin);
break;
-
- qla24xx_queue_purex_item(vha, pure_item,
- qla24xx_process_purex_rdp);
+ default:
+ ql_log(ql_log_warn, vha, 0x509c,
+ "Discarding ELS Request opcode 0x%x\n",
+ purex_entry->els_frame_payload[3]);
+ }
break;
- }
default:
/* Type Not Supported. */
ql_dbg(ql_dbg_async, vha, 0x5042,
- "Received unknown response pkt type %x "
- "entry status=%x.\n",
- pkt->entry_type, pkt->entry_status);
+ "Received unknown response pkt type 0x%x entry status=%x.\n",
+ pkt->entry_type, pkt->entry_status);
break;
}
((response_t *)pkt)->signature = RESPONSE_PROCESSED;
@@ -1126,6 +1126,16 @@ qla2x00_get_fw_version(scsi_qla_host_t *vha)
(ha->flags.secure_fw) ? "Supported" :
"Not Supported");
}
+
+ if (ha->flags.scm_supported_a &&
+ (ha->fw_attributes_ext[0] & FW_ATTR_EXT0_SCM_SUPPORTED)) {
+ ha->flags.scm_supported_f = 1;
+ memset(ha->sf_init_cb, 0, sizeof(struct init_sf_cb));
+ ha->sf_init_cb->flags |= BIT_13;
+ }
+ ql_log(ql_log_info, vha, 0x11a3, "SCM in FW: %s\n",
+ (ha->flags.scm_supported_f) ? "Supported" :
+ "Not Supported");
}
failed:
@@ -1635,8 +1645,11 @@ qla2x00_get_adapter_id(scsi_qla_host_t *vha, uint16_t *id, uint8_t *al_pa,
mcp->in_mb |= MBX_13|MBX_12|MBX_11|MBX_10;
if (IS_FWI2_CAPABLE(vha->hw))
mcp->in_mb |= MBX_19|MBX_18|MBX_17|MBX_16;
- if (IS_QLA27XX(vha->hw) || IS_QLA28XX(vha->hw))
+ if (IS_QLA27XX(vha->hw) || IS_QLA28XX(vha->hw)) {
mcp->in_mb |= MBX_15;
+ mcp->out_mb |= MBX_7|MBX_21|MBX_22|MBX_23;
+ }
+
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
@@ -1689,8 +1702,22 @@ qla2x00_get_adapter_id(scsi_qla_host_t *vha, uint16_t *id, uint8_t *al_pa,
}
}
- if (IS_QLA27XX(vha->hw) || IS_QLA28XX(vha->hw))
+ if (IS_QLA27XX(vha->hw) || IS_QLA28XX(vha->hw)) {
vha->bbcr = mcp->mb[15];
+ if (mcp->mb[7] & SCM_EDC_ACC_RECEIVED) {
+ ql_log(ql_log_info, vha, 0x11a4,
+ "SCM: EDC ELS completed, flags 0x%x\n",
+ mcp->mb[21]);
+ }
+ if (mcp->mb[7] & SCM_RDF_ACC_RECEIVED) {
+ vha->hw->flags.scm_enabled = 1;
+ vha->scm_fabric_connection_flags |=
+ SCM_FLAG_RDF_COMPLETED;
+ ql_log(ql_log_info, vha, 0x11a5,
+ "SCM: RDF ELS completed, flags 0x%x\n",
+ mcp->mb[23]);
+ }
+ }
}
return rval;
@@ -1803,6 +1830,17 @@ qla2x00_init_firmware(scsi_qla_host_t *vha, uint16_t size)
mcp->mb[14] = sizeof(*ha->ex_init_cb);
mcp->out_mb |= MBX_14|MBX_13|MBX_12|MBX_11|MBX_10;
}
+
+ if (ha->flags.scm_supported_f) {
+ mcp->mb[1] |= BIT_1;
+ mcp->mb[16] = MSW(ha->sf_init_cb_dma);
+ mcp->mb[17] = LSW(ha->sf_init_cb_dma);
+ mcp->mb[18] = MSW(MSD(ha->sf_init_cb_dma));
+ mcp->mb[19] = LSW(MSD(ha->sf_init_cb_dma));
+ mcp->mb[15] = sizeof(*ha->sf_init_cb);
+ mcp->out_mb |= MBX_19|MBX_18|MBX_17|MBX_16|MBX_15;
+ }
+
/* 1 and 2 should normally be captured. */
mcp->in_mb = MBX_2|MBX_1|MBX_0;
if (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha))
@@ -4220,6 +4220,16 @@ qla2x00_mem_alloc(struct qla_hw_data *ha, uint16_t req_len, uint16_t rsp_len,
"ex_init_cb=%p.\n", ha->ex_init_cb);
}
+ /* Get consistent memory allocated for Special Features-CB. */
+ if (IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
+ ha->sf_init_cb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
+ &ha->sf_init_cb_dma);
+ if (!ha->sf_init_cb)
+ goto fail_sf_init_cb;
+ ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0199,
+ "sf_init_cb=%p.\n", ha->sf_init_cb);
+ }
+
INIT_LIST_HEAD(&ha->gbl_dsd_list);
/* Get consistent memory allocated for Async Port-Database. */
@@ -4273,6 +4283,8 @@ qla2x00_mem_alloc(struct qla_hw_data *ha, uint16_t req_len, uint16_t rsp_len,
fail_loop_id_map:
dma_pool_free(ha->s_dma_pool, ha->async_pd, ha->async_pd_dma);
fail_async_pd:
+ dma_pool_free(ha->s_dma_pool, ha->sf_init_cb, ha->sf_init_cb_dma);
+fail_sf_init_cb:
dma_pool_free(ha->s_dma_pool, ha->ex_init_cb, ha->ex_init_cb_dma);
fail_ex_init_cb:
kfree(ha->npiv_info);
@@ -4695,6 +4707,10 @@ qla2x00_mem_free(struct qla_hw_data *ha)
ha->ms_iocb = NULL;
ha->ms_iocb_dma = 0;
+ if (ha->sf_init_cb)
+ dma_pool_free(ha->s_dma_pool,
+ ha->sf_init_cb, ha->sf_init_cb_dma);
+
if (ha->ex_init_cb)
dma_pool_free(ha->s_dma_pool,
ha->ex_init_cb, ha->ex_init_cb_dma);
@@ -4782,6 +4798,8 @@ qla2x00_mem_free(struct qla_hw_data *ha)
kfree(ha->swl);
ha->swl = NULL;
kfree(ha->loop_id_map);
+ ha->sf_init_cb = NULL;
+ ha->sf_init_cb_dma = 0;
ha->loop_id_map = NULL;
}