diff --git a/drivers/s390/scsi/zfcp_ccw.c b/drivers/s390/scsi/zfcp_ccw.c index 391dd29749f8..51b6a05f4d12 100644 --- a/drivers/s390/scsi/zfcp_ccw.c +++ b/drivers/s390/scsi/zfcp_ccw.c @@ -152,10 +152,8 @@ static int zfcp_ccw_set_offline(struct ccw_device *ccw_device) */ static int zfcp_ccw_notify(struct ccw_device *ccw_device, int event) { - struct zfcp_adapter *adapter; + struct zfcp_adapter *adapter = dev_get_drvdata(&ccw_device->dev); - down(&zfcp_data.config_sema); - adapter = dev_get_drvdata(&ccw_device->dev); switch (event) { case CIO_GONE: dev_warn(&adapter->ccw_device->dev, "device gone\n"); @@ -174,8 +172,6 @@ static int zfcp_ccw_notify(struct ccw_device *ccw_device, int event) 89, NULL); break; } - zfcp_erp_wait(adapter); - up(&zfcp_data.config_sema); return 1; } diff --git a/drivers/s390/scsi/zfcp_fc.c b/drivers/s390/scsi/zfcp_fc.c index e984469bb98b..56196c98c07b 100644 --- a/drivers/s390/scsi/zfcp_fc.c +++ b/drivers/s390/scsi/zfcp_fc.c @@ -39,18 +39,6 @@ struct zfcp_gpn_ft { struct scatterlist sg_resp[ZFCP_GPN_FT_BUFFERS]; }; -static struct zfcp_port *zfcp_get_port_by_did(struct zfcp_adapter *adapter, - u32 d_id) -{ - struct zfcp_port *port; - - list_for_each_entry(port, &adapter->port_list_head, list) - if ((port->d_id == d_id) && - !atomic_test_mask(ZFCP_STATUS_COMMON_REMOVE, &port->status)) - return port; - return NULL; -} - static void _zfcp_fc_incoming_rscn(struct zfcp_fsf_req *fsf_req, u32 range, struct fcp_rscn_element *elem) { @@ -341,12 +329,13 @@ void zfcp_test_link(struct zfcp_port *port) zfcp_port_get(port); retval = zfcp_fc_adisc(port); - if (retval == 0 || retval == -EBUSY) + if (retval == 0) return; /* send of ADISC was not possible */ zfcp_port_put(port); - zfcp_erp_port_forced_reopen(port, 0, 65, NULL); + if (retval != -EBUSY) + zfcp_erp_port_forced_reopen(port, 0, 65, NULL); } static int zfcp_scan_get_nameserver(struct zfcp_adapter *adapter) @@ -363,7 +352,6 @@ static int zfcp_scan_get_nameserver(struct zfcp_adapter *adapter) if (ret) return ret; zfcp_erp_wait(adapter); - zfcp_port_put(adapter->nameserver_port); } return !atomic_test_mask(ZFCP_STATUS_COMMON_UNBLOCKED, &adapter->nameserver_port->status); @@ -475,7 +463,7 @@ static int zfcp_scan_eval_gpn_ft(struct zfcp_gpn_ft *gpn_ft) struct zfcp_adapter *adapter = ct->port->adapter; struct zfcp_port *port, *tmp; u32 d_id; - int ret = 0, x; + int ret = 0, x, last = 0; if (ct->status) return -EIO; @@ -492,19 +480,24 @@ static int zfcp_scan_eval_gpn_ft(struct zfcp_gpn_ft *gpn_ft) down(&zfcp_data.config_sema); /* first entry is the header */ - for (x = 1; x < ZFCP_GPN_FT_MAX_ENTRIES; x++) { + for (x = 1; x < ZFCP_GPN_FT_MAX_ENTRIES && !last; x++) { if (x % (ZFCP_GPN_FT_ENTRIES + 1)) acc++; else acc = sg_virt(++sg); + last = acc->control & 0x80; d_id = acc->port_id[0] << 16 | acc->port_id[1] << 8 | acc->port_id[2]; /* skip the adapter's port and known remote ports */ - if (acc->wwpn == fc_host_port_name(adapter->scsi_host) || - zfcp_get_port_by_did(adapter, d_id)) + if (acc->wwpn == fc_host_port_name(adapter->scsi_host)) continue; + port = zfcp_get_port_by_wwpn(adapter, acc->wwpn); + if (port) { + zfcp_port_get(port); + continue; + } port = zfcp_port_enqueue(adapter, acc->wwpn, ZFCP_STATUS_PORT_DID_DID | @@ -513,8 +506,6 @@ static int zfcp_scan_eval_gpn_ft(struct zfcp_gpn_ft *gpn_ft) ret = PTR_ERR(port); else zfcp_erp_port_reopen(port, 0, 149, NULL); - if (acc->control & 0x80) /* last entry */ - break; } zfcp_erp_wait(adapter); diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c index 19c1ca913874..49dbeb754e5f 100644 --- a/drivers/s390/scsi/zfcp_fsf.c +++ b/drivers/s390/scsi/zfcp_fsf.c @@ -710,10 +710,10 @@ static void zfcp_fsf_exchange_port_data_handler(struct zfcp_fsf_req *req) static int zfcp_fsf_sbal_check(struct zfcp_qdio_queue *queue) { - spin_lock(&queue->lock); + spin_lock_bh(&queue->lock); if (atomic_read(&queue->count)) return 1; - spin_unlock(&queue->lock); + spin_unlock_bh(&queue->lock); return 0; } @@ -722,13 +722,13 @@ static int zfcp_fsf_req_sbal_get(struct zfcp_adapter *adapter) long ret; struct zfcp_qdio_queue *req_q = &adapter->req_q; - spin_unlock(&req_q->lock); + spin_unlock_bh(&req_q->lock); ret = wait_event_interruptible_timeout(adapter->request_wq, zfcp_fsf_sbal_check(req_q), 5 * HZ); if (ret > 0) return 0; - spin_lock(&req_q->lock); + spin_lock_bh(&req_q->lock); return -EIO; } @@ -870,14 +870,14 @@ int zfcp_fsf_status_read(struct zfcp_adapter *adapter) volatile struct qdio_buffer_element *sbale; int retval = -EIO; - spin_lock(&adapter->req_q.lock); + spin_lock_bh(&adapter->req_q.lock); if (zfcp_fsf_req_sbal_get(adapter)) goto out; req = zfcp_fsf_req_create(adapter, FSF_QTCB_UNSOLICITED_STATUS, ZFCP_REQ_NO_QTCB, adapter->pool.fsf_req_status_read); - if (unlikely(IS_ERR(req))) { + if (IS_ERR(req)) { retval = PTR_ERR(req); goto out; } @@ -910,7 +910,7 @@ failed_buf: zfcp_fsf_req_free(req); zfcp_hba_dbf_event_fsf_unsol("fail", adapter, NULL); out: - spin_unlock(&adapter->req_q.lock); + spin_unlock_bh(&adapter->req_q.lock); return retval; } @@ -988,7 +988,7 @@ struct zfcp_fsf_req *zfcp_fsf_abort_fcp_command(unsigned long old_req_id, goto out; req = zfcp_fsf_req_create(adapter, FSF_QTCB_ABORT_FCP_CMND, req_flags, adapter->pool.fsf_req_abort); - if (unlikely(IS_ERR(req))) + if (IS_ERR(req)) goto out; if (unlikely(!(atomic_read(&unit->status) & @@ -1106,13 +1106,13 @@ int zfcp_fsf_send_ct(struct zfcp_send_ct *ct, mempool_t *pool, struct zfcp_fsf_req *req; int ret = -EIO; - spin_lock(&adapter->req_q.lock); + spin_lock_bh(&adapter->req_q.lock); if (zfcp_fsf_req_sbal_get(adapter)) goto out; req = zfcp_fsf_req_create(adapter, FSF_QTCB_SEND_GENERIC, ZFCP_REQ_AUTO_CLEANUP, pool); - if (unlikely(IS_ERR(req))) { + if (IS_ERR(req)) { ret = PTR_ERR(req); goto out; } @@ -1148,7 +1148,7 @@ failed_send: if (erp_action) erp_action->fsf_req = NULL; out: - spin_unlock(&adapter->req_q.lock); + spin_unlock_bh(&adapter->req_q.lock); return ret; } @@ -1223,7 +1223,7 @@ int zfcp_fsf_send_els(struct zfcp_send_els *els) goto out; req = zfcp_fsf_req_create(adapter, FSF_QTCB_SEND_ELS, ZFCP_REQ_AUTO_CLEANUP, NULL); - if (unlikely(IS_ERR(req))) { + if (IS_ERR(req)) { ret = PTR_ERR(req); goto out; } @@ -1263,14 +1263,14 @@ int zfcp_fsf_exchange_config_data(struct zfcp_erp_action *erp_action) struct zfcp_adapter *adapter = erp_action->adapter; int retval = -EIO; - spin_lock(&adapter->req_q.lock); + spin_lock_bh(&adapter->req_q.lock); if (!atomic_read(&adapter->req_q.count)) goto out; req = zfcp_fsf_req_create(adapter, FSF_QTCB_EXCHANGE_CONFIG_DATA, ZFCP_REQ_AUTO_CLEANUP, adapter->pool.fsf_req_erp); - if (unlikely(IS_ERR(req))) { + if (IS_ERR(req)) { retval = PTR_ERR(req); goto out; } @@ -1295,7 +1295,7 @@ int zfcp_fsf_exchange_config_data(struct zfcp_erp_action *erp_action) erp_action->fsf_req = NULL; } out: - spin_unlock(&adapter->req_q.lock); + spin_unlock_bh(&adapter->req_q.lock); return retval; } @@ -1306,13 +1306,13 @@ int zfcp_fsf_exchange_config_data_sync(struct zfcp_adapter *adapter, struct zfcp_fsf_req *req = NULL; int retval = -EIO; - spin_lock(&adapter->req_q.lock); + spin_lock_bh(&adapter->req_q.lock); if (zfcp_fsf_req_sbal_get(adapter)) goto out; req = zfcp_fsf_req_create(adapter, FSF_QTCB_EXCHANGE_CONFIG_DATA, 0, NULL); - if (unlikely(IS_ERR(req))) { + if (IS_ERR(req)) { retval = PTR_ERR(req); goto out; } @@ -1334,7 +1334,7 @@ int zfcp_fsf_exchange_config_data_sync(struct zfcp_adapter *adapter, zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); retval = zfcp_fsf_req_send(req); out: - spin_unlock(&adapter->req_q.lock); + spin_unlock_bh(&adapter->req_q.lock); if (!retval) wait_event(req->completion_wq, req->status & ZFCP_STATUS_FSFREQ_COMPLETED); @@ -1359,13 +1359,13 @@ int zfcp_fsf_exchange_port_data(struct zfcp_erp_action *erp_action) if (!(adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT)) return -EOPNOTSUPP; - spin_lock(&adapter->req_q.lock); + spin_lock_bh(&adapter->req_q.lock); if (!atomic_read(&adapter->req_q.count)) goto out; req = zfcp_fsf_req_create(adapter, FSF_QTCB_EXCHANGE_PORT_DATA, ZFCP_REQ_AUTO_CLEANUP, adapter->pool.fsf_req_erp); - if (unlikely(IS_ERR(req))) { + if (IS_ERR(req)) { retval = PTR_ERR(req); goto out; } @@ -1385,7 +1385,7 @@ int zfcp_fsf_exchange_port_data(struct zfcp_erp_action *erp_action) erp_action->fsf_req = NULL; } out: - spin_unlock(&adapter->req_q.lock); + spin_unlock_bh(&adapter->req_q.lock); return retval; } @@ -1405,13 +1405,13 @@ int zfcp_fsf_exchange_port_data_sync(struct zfcp_adapter *adapter, if (!(adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT)) return -EOPNOTSUPP; - spin_lock(&adapter->req_q.lock); + spin_lock_bh(&adapter->req_q.lock); if (!atomic_read(&adapter->req_q.count)) goto out; req = zfcp_fsf_req_create(adapter, FSF_QTCB_EXCHANGE_PORT_DATA, 0, NULL); - if (unlikely(IS_ERR(req))) { + if (IS_ERR(req)) { retval = PTR_ERR(req); goto out; } @@ -1427,7 +1427,7 @@ int zfcp_fsf_exchange_port_data_sync(struct zfcp_adapter *adapter, zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); retval = zfcp_fsf_req_send(req); out: - spin_unlock(&adapter->req_q.lock); + spin_unlock_bh(&adapter->req_q.lock); if (!retval) wait_event(req->completion_wq, req->status & ZFCP_STATUS_FSFREQ_COMPLETED); @@ -1531,7 +1531,7 @@ int zfcp_fsf_open_port(struct zfcp_erp_action *erp_action) struct zfcp_fsf_req *req; int retval = -EIO; - spin_lock(&adapter->req_q.lock); + spin_lock_bh(&adapter->req_q.lock); if (zfcp_fsf_req_sbal_get(adapter)) goto out; @@ -1539,7 +1539,7 @@ int zfcp_fsf_open_port(struct zfcp_erp_action *erp_action) FSF_QTCB_OPEN_PORT_WITH_DID, ZFCP_REQ_AUTO_CLEANUP, adapter->pool.fsf_req_erp); - if (unlikely(IS_ERR(req))) { + if (IS_ERR(req)) { retval = PTR_ERR(req); goto out; } @@ -1562,7 +1562,7 @@ int zfcp_fsf_open_port(struct zfcp_erp_action *erp_action) erp_action->fsf_req = NULL; } out: - spin_unlock(&adapter->req_q.lock); + spin_unlock_bh(&adapter->req_q.lock); return retval; } @@ -1603,14 +1603,14 @@ int zfcp_fsf_close_port(struct zfcp_erp_action *erp_action) struct zfcp_fsf_req *req; int retval = -EIO; - spin_lock(&adapter->req_q.lock); + spin_lock_bh(&adapter->req_q.lock); if (zfcp_fsf_req_sbal_get(adapter)) goto out; req = zfcp_fsf_req_create(adapter, FSF_QTCB_CLOSE_PORT, ZFCP_REQ_AUTO_CLEANUP, adapter->pool.fsf_req_erp); - if (unlikely(IS_ERR(req))) { + if (IS_ERR(req)) { retval = PTR_ERR(req); goto out; } @@ -1633,7 +1633,7 @@ int zfcp_fsf_close_port(struct zfcp_erp_action *erp_action) erp_action->fsf_req = NULL; } out: - spin_unlock(&adapter->req_q.lock); + spin_unlock_bh(&adapter->req_q.lock); return retval; } @@ -1700,14 +1700,14 @@ int zfcp_fsf_close_physical_port(struct zfcp_erp_action *erp_action) struct zfcp_fsf_req *req; int retval = -EIO; - spin_lock(&adapter->req_q.lock); + spin_lock_bh(&adapter->req_q.lock); if (zfcp_fsf_req_sbal_get(adapter)) goto out; req = zfcp_fsf_req_create(adapter, FSF_QTCB_CLOSE_PHYSICAL_PORT, ZFCP_REQ_AUTO_CLEANUP, adapter->pool.fsf_req_erp); - if (unlikely(IS_ERR(req))) { + if (IS_ERR(req)) { retval = PTR_ERR(req); goto out; } @@ -1731,7 +1731,7 @@ int zfcp_fsf_close_physical_port(struct zfcp_erp_action *erp_action) erp_action->fsf_req = NULL; } out: - spin_unlock(&adapter->req_q.lock); + spin_unlock_bh(&adapter->req_q.lock); return retval; } @@ -1875,14 +1875,14 @@ int zfcp_fsf_open_unit(struct zfcp_erp_action *erp_action) struct zfcp_fsf_req *req; int retval = -EIO; - spin_lock(&adapter->req_q.lock); + spin_lock_bh(&adapter->req_q.lock); if (zfcp_fsf_req_sbal_get(adapter)) goto out; req = zfcp_fsf_req_create(adapter, FSF_QTCB_OPEN_LUN, ZFCP_REQ_AUTO_CLEANUP, adapter->pool.fsf_req_erp); - if (unlikely(IS_ERR(req))) { + if (IS_ERR(req)) { retval = PTR_ERR(req); goto out; } @@ -1910,7 +1910,7 @@ int zfcp_fsf_open_unit(struct zfcp_erp_action *erp_action) erp_action->fsf_req = NULL; } out: - spin_unlock(&adapter->req_q.lock); + spin_unlock_bh(&adapter->req_q.lock); return retval; } @@ -1965,13 +1965,13 @@ int zfcp_fsf_close_unit(struct zfcp_erp_action *erp_action) struct zfcp_fsf_req *req; int retval = -EIO; - spin_lock(&adapter->req_q.lock); + spin_lock_bh(&adapter->req_q.lock); if (zfcp_fsf_req_sbal_get(adapter)) goto out; req = zfcp_fsf_req_create(adapter, FSF_QTCB_CLOSE_LUN, ZFCP_REQ_AUTO_CLEANUP, adapter->pool.fsf_req_erp); - if (unlikely(IS_ERR(req))) { + if (IS_ERR(req)) { retval = PTR_ERR(req); goto out; } @@ -1995,7 +1995,7 @@ int zfcp_fsf_close_unit(struct zfcp_erp_action *erp_action) erp_action->fsf_req = NULL; } out: - spin_unlock(&adapter->req_q.lock); + spin_unlock_bh(&adapter->req_q.lock); return retval; } @@ -2228,7 +2228,7 @@ int zfcp_fsf_send_fcp_command_task(struct zfcp_adapter *adapter, goto out; req = zfcp_fsf_req_create(adapter, FSF_QTCB_FCP_CMND, req_flags, adapter->pool.fsf_req_scsi); - if (unlikely(IS_ERR(req))) { + if (IS_ERR(req)) { retval = PTR_ERR(req); goto out; } @@ -2351,7 +2351,7 @@ struct zfcp_fsf_req *zfcp_fsf_send_fcp_ctm(struct zfcp_adapter *adapter, goto out; req = zfcp_fsf_req_create(adapter, FSF_QTCB_FCP_CMND, req_flags, adapter->pool.fsf_req_scsi); - if (unlikely(IS_ERR(req))) + if (IS_ERR(req)) goto out; req->status |= ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT; @@ -2417,12 +2417,12 @@ struct zfcp_fsf_req *zfcp_fsf_control_file(struct zfcp_adapter *adapter, return ERR_PTR(-EINVAL); } - spin_lock(&adapter->req_q.lock); + spin_lock_bh(&adapter->req_q.lock); if (zfcp_fsf_req_sbal_get(adapter)) goto out; req = zfcp_fsf_req_create(adapter, fsf_cfdc->command, 0, NULL); - if (unlikely(IS_ERR(req))) { + if (IS_ERR(req)) { retval = -EPERM; goto out; } @@ -2447,7 +2447,7 @@ struct zfcp_fsf_req *zfcp_fsf_control_file(struct zfcp_adapter *adapter, zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); retval = zfcp_fsf_req_send(req); out: - spin_unlock(&adapter->req_q.lock); + spin_unlock_bh(&adapter->req_q.lock); if (!retval) { wait_event(req->completion_wq, diff --git a/drivers/s390/scsi/zfcp_qdio.c b/drivers/s390/scsi/zfcp_qdio.c index d6dbd653fde9..69d632d851d9 100644 --- a/drivers/s390/scsi/zfcp_qdio.c +++ b/drivers/s390/scsi/zfcp_qdio.c @@ -423,9 +423,9 @@ void zfcp_qdio_close(struct zfcp_adapter *adapter) /* clear QDIOUP flag, thus do_QDIO is not called during qdio_shutdown */ req_q = &adapter->req_q; - spin_lock(&req_q->lock); + spin_lock_bh(&req_q->lock); atomic_clear_mask(ZFCP_STATUS_ADAPTER_QDIOUP, &adapter->status); - spin_unlock(&req_q->lock); + spin_unlock_bh(&req_q->lock); qdio_shutdown(adapter->ccw_device, QDIO_FLAG_CLEANUP_USING_CLEAR); diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig index c7f06298bd3c..4e0322b1c1ea 100644 --- a/drivers/scsi/Kconfig +++ b/drivers/scsi/Kconfig @@ -63,7 +63,7 @@ comment "SCSI support type (disk, tape, CD-ROM)" config BLK_DEV_SD tristate "SCSI disk support" depends on SCSI - select CRC_T10DIF + select CRC_T10DIF if BLK_DEV_INTEGRITY ---help--- If you want to use SCSI hard disks, Fibre Channel disks, Serial ATA (SATA) or Parallel ATA (PATA) hard disks, diff --git a/drivers/scsi/device_handler/scsi_dh_alua.c b/drivers/scsi/device_handler/scsi_dh_alua.c index 994da56fffed..708e475896b9 100644 --- a/drivers/scsi/device_handler/scsi_dh_alua.c +++ b/drivers/scsi/device_handler/scsi_dh_alua.c @@ -425,7 +425,7 @@ static int alua_check_sense(struct scsi_device *sdev, /* * LUN Not Accessible - ALUA state transition */ - return NEEDS_RETRY; + return ADD_TO_MLQUEUE; if (sense_hdr->asc == 0x04 && sense_hdr->ascq == 0x0b) /* * LUN Not Accessible -- Target port in standby state @@ -447,18 +447,18 @@ static int alua_check_sense(struct scsi_device *sdev, /* * Power On, Reset, or Bus Device Reset, just retry. */ - return NEEDS_RETRY; + return ADD_TO_MLQUEUE; if (sense_hdr->asc == 0x2a && sense_hdr->ascq == 0x06) { /* * ALUA state changed */ - return NEEDS_RETRY; + return ADD_TO_MLQUEUE; } if (sense_hdr->asc == 0x2a && sense_hdr->ascq == 0x07) { /* * Implicit ALUA state transition failed */ - return NEEDS_RETRY; + return ADD_TO_MLQUEUE; } break; } @@ -490,7 +490,7 @@ static int alua_stpg(struct scsi_device *sdev, int state, if (!err) return SCSI_DH_IO; err = alua_check_sense(sdev, &sense_hdr); - if (retry > 0 && err == NEEDS_RETRY) { + if (retry > 0 && err == ADD_TO_MLQUEUE) { retry--; goto retry; } @@ -535,7 +535,7 @@ static int alua_rtpg(struct scsi_device *sdev, struct alua_dh_data *h) return SCSI_DH_IO; err = alua_check_sense(sdev, &sense_hdr); - if (err == NEEDS_RETRY) + if (err == ADD_TO_MLQUEUE) goto retry; sdev_printk(KERN_INFO, sdev, "%s: rtpg sense code %02x/%02x/%02x\n", diff --git a/drivers/scsi/device_handler/scsi_dh_emc.c b/drivers/scsi/device_handler/scsi_dh_emc.c index b9d23e9e9a44..ef693e8412e9 100644 --- a/drivers/scsi/device_handler/scsi_dh_emc.c +++ b/drivers/scsi/device_handler/scsi_dh_emc.c @@ -439,7 +439,7 @@ static int clariion_check_sense(struct scsi_device *sdev, * Unit Attention Code. This is the first IO * to the new path, so just retry. */ - return NEEDS_RETRY; + return ADD_TO_MLQUEUE; break; } @@ -514,7 +514,7 @@ retry: return SCSI_DH_IO; err = clariion_check_sense(sdev, &sshdr); - if (retry > 0 && err == NEEDS_RETRY) { + if (retry > 0 && err == ADD_TO_MLQUEUE) { retry--; goto retry; } diff --git a/drivers/scsi/device_handler/scsi_dh_rdac.c b/drivers/scsi/device_handler/scsi_dh_rdac.c index 2dee69da35cf..6e2f130d56de 100644 --- a/drivers/scsi/device_handler/scsi_dh_rdac.c +++ b/drivers/scsi/device_handler/scsi_dh_rdac.c @@ -551,7 +551,7 @@ static int rdac_check_sense(struct scsi_device *sdev, * * Just retry and wait. */ - return NEEDS_RETRY; + return ADD_TO_MLQUEUE; break; case ILLEGAL_REQUEST: if (sense_hdr->asc == 0x94 && sense_hdr->ascq == 0x01) { @@ -568,7 +568,7 @@ static int rdac_check_sense(struct scsi_device *sdev, /* * Power On, Reset, or Bus Device Reset, just retry. */ - return NEEDS_RETRY; + return ADD_TO_MLQUEUE; break; } /* success just means we do not care what scsi-ml does */ diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c index 880051c89bde..39ce3aba1dac 100644 --- a/drivers/scsi/scsi_error.c +++ b/drivers/scsi/scsi_error.c @@ -391,7 +391,7 @@ static int scsi_check_sense(struct scsi_cmnd *scmd) case HARDWARE_ERROR: if (scmd->device->retry_hwerror) - return NEEDS_RETRY; + return ADD_TO_MLQUEUE; else return SUCCESS; diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c index 84b4879cff11..34d0de6cd511 100644 --- a/drivers/scsi/scsi_scan.c +++ b/drivers/scsi/scsi_scan.c @@ -1080,7 +1080,8 @@ static int scsi_probe_and_add_lun(struct scsi_target *starget, * PDT=1Fh none (no FDD connected to the requested logical unit) */ if (((result[0] >> 5) == 1 || starget->pdt_1f_for_no_lun) && - (result[0] & 0x1f) == 0x1f) { + (result[0] & 0x1f) == 0x1f && + !scsi_is_wlun(lun)) { SCSI_LOG_SCAN_BUS(3, printk(KERN_INFO "scsi scan: peripheral device type" " of 31, no device added\n")); diff --git a/include/scsi/scsi.h b/include/scsi/scsi.h index 5c40cc537d4c..192f8716aa9e 100644 --- a/include/scsi/scsi.h +++ b/include/scsi/scsi.h @@ -308,6 +308,20 @@ struct scsi_lun { __u8 scsi_lun[8]; }; +/* + * The Well Known LUNS (SAM-3) in our int representation of a LUN + */ +#define SCSI_W_LUN_BASE 0xc100 +#define SCSI_W_LUN_REPORT_LUNS (SCSI_W_LUN_BASE + 1) +#define SCSI_W_LUN_ACCESS_CONTROL (SCSI_W_LUN_BASE + 2) +#define SCSI_W_LUN_TARGET_LOG_PAGE (SCSI_W_LUN_BASE + 3) + +static inline int scsi_is_wlun(unsigned int lun) +{ + return (lun & 0xff00) == SCSI_W_LUN_BASE; +} + + /* * MESSAGE CODES */