From: Lalit Chandivade <lalit.chandivade@xxxxxxxxxx> Add scsi_transport_iscsi hooks in qla4xxx to support iSCSI session management using iscsiadm. This patch is based on discussion here http://groups.google.com/group/open-iscsi/browse_thread/thread/e89fd888baf656a0# Now users can use iscsiadm to do target discovery and do login/logout to individual targets using the qla4xxx iSCSI class interface. Signed-off-by: Lalit Chandivade <lalit.chandivade@xxxxxxxxxx> Signed-off-by: Manish Rangankar <manish.rangankar@xxxxxxxxxx> Signed-off-by: Vikas Chaudhary <vikas.chaudhary@xxxxxxxxxx> --- drivers/scsi/qla4xxx/ql4_def.h | 38 ++- drivers/scsi/qla4xxx/ql4_fw.h | 43 ++- drivers/scsi/qla4xxx/ql4_glbl.h | 18 +- drivers/scsi/qla4xxx/ql4_init.c | 111 ++---- drivers/scsi/qla4xxx/ql4_iocb.c | 66 +++ drivers/scsi/qla4xxx/ql4_isr.c | 82 +++- drivers/scsi/qla4xxx/ql4_mbx.c | 334 ++++++++++++- drivers/scsi/qla4xxx/ql4_os.c | 991 ++++++++++++++++++++++++++++++--------- 8 files changed, 1317 insertions(+), 366 deletions(-) diff --git a/drivers/scsi/qla4xxx/ql4_def.h b/drivers/scsi/qla4xxx/ql4_def.h index 3a0316c..d9d59ba 100644 --- a/drivers/scsi/qla4xxx/ql4_def.h +++ b/drivers/scsi/qla4xxx/ql4_def.h @@ -33,9 +33,12 @@ #include <scsi/scsi_cmnd.h> #include <scsi/scsi_transport.h> #include <scsi/scsi_transport_iscsi.h> +#include <scsi/libiscsi.h> #include "ql4_dbg.h" #include "ql4_nx.h" +#include "ql4_fw.h" +#include "ql4_nvram.h" #ifndef PCI_DEVICE_ID_QLOGIC_ISP4010 #define PCI_DEVICE_ID_QLOGIC_ISP4010 0x4010 @@ -109,7 +112,7 @@ #define MAX_BUSES 1 #define MAX_TARGETS MAX_DEV_DB_ENTRIES #define MAX_LUNS 0xffff -#define MAX_AEN_ENTRIES 256 /* should be > EXT_DEF_MAX_AEN_QUEUE */ +#define MAX_AEN_ENTRIES MAX_DEV_DB_ENTRIES #define MAX_DDB_ENTRIES MAX_DEV_DB_ENTRIES #define MAX_PDU_ENTRIES 32 #define INVALID_ENTRY 0xFFFF @@ -166,6 +169,7 @@ #define RELOGIN_TOV 18 #define ISNS_DEREG_TOV 5 #define HBA_ONLINE_TOV 30 +#define AEN_WAIT_TOV 30 #define MAX_RESET_HA_RETRIES 2 @@ -273,6 +277,7 @@ struct ddb_entry { struct in6_addr remote_ipv6_addr; struct in6_addr link_local_ipv6_addr; + struct completion aen_comp; }; /* @@ -293,8 +298,6 @@ struct ddb_entry { #define DF_FO_MASKED 3 -#include "ql4_fw.h" -#include "ql4_nvram.h" struct ql82xx_hw_data { /* Offsets for flash/nvram access (set to ~0 if not used). */ @@ -591,6 +594,33 @@ struct scsi_qla_host { struct iscsi_iface *iface_ipv4; struct iscsi_iface *iface_ipv6_1; struct iscsi_iface *iface_ipv6_2; + struct dma_pool *chap_dma_pool; +#define CHAP_DMA_BLOCK_SIZE 512 + struct workqueue_struct *task_wq; + unsigned long ddb_idx_map[MAX_DDB_ENTRIES / BITS_PER_LONG]; +}; + +struct ql4_task_data { + struct scsi_qla_host *ha; + uint8_t iocb_req_cnt; + dma_addr_t data_dma; + void *req_buffer; + dma_addr_t req_dma; + void *resp_buffer; + dma_addr_t resp_dma; + uint32_t resp_len; + struct iscsi_task *task; + struct passthru_status sts; + struct work_struct task_work; +}; + +struct qla_endpoint { + struct Scsi_Host *host; + struct sockaddr dst_addr; +}; + +struct qla_conn { + struct qla_endpoint *qla_ep; }; static inline int is_ipv4_enabled(struct scsi_qla_host *ha) @@ -641,7 +671,7 @@ static inline int adapter_up(struct scsi_qla_host *ha) static inline struct scsi_qla_host* to_qla_host(struct Scsi_Host *shost) { - return (struct scsi_qla_host *)shost->hostdata; + return (struct scsi_qla_host *)iscsi_host_priv(shost); } static inline void __iomem* isp_semaphore(struct scsi_qla_host *ha) diff --git a/drivers/scsi/qla4xxx/ql4_fw.h b/drivers/scsi/qla4xxx/ql4_fw.h index 6978a67..c557853 100644 --- a/drivers/scsi/qla4xxx/ql4_fw.h +++ b/drivers/scsi/qla4xxx/ql4_fw.h @@ -335,9 +335,11 @@ struct qla_flt_region { #define MBOX_CMD_WRITE_FLASH 0x0025 #define MBOX_CMD_READ_FLASH 0x0026 #define MBOX_CMD_CLEAR_DATABASE_ENTRY 0x0031 +#define MBOX_CMD_CONN_OPEN 0x0074 #define MBOX_CMD_CONN_CLOSE_SESS_LOGOUT 0x0056 -#define LOGOUT_OPTION_CLOSE_SESSION 0x01 -#define LOGOUT_OPTION_RELOGIN 0x02 +#define LOGOUT_OPTION_CLOSE_SESSION 0x0002 +#define LOGOUT_OPTION_RELOGIN 0x0004 +#define LOGOUT_OPTION_FREE_DDB 0x0008 #define MBOX_CMD_EXECUTE_IOCB_A64 0x005A #define MBOX_CMD_INITIALIZE_FIRMWARE 0x0060 #define MBOX_CMD_GET_INIT_FW_CTRL_BLOCK 0x0061 @@ -346,6 +348,7 @@ struct qla_flt_region { #define MBOX_CMD_GET_DATABASE_ENTRY 0x0064 #define DDB_DS_UNASSIGNED 0x00 #define DDB_DS_NO_CONNECTION_ACTIVE 0x01 +#define DDB_DS_DISCOVERY 0x02 #define DDB_DS_SESSION_ACTIVE 0x04 #define DDB_DS_SESSION_FAILED 0x06 #define DDB_DS_LOGIN_IN_PROCESS 0x07 @@ -379,7 +382,11 @@ struct qla_flt_region { #define FW_ADDSTATE_DHCPv4_LEASE_EXPIRED 0x0008 #define FW_ADDSTATE_LINK_UP 0x0010 #define FW_ADDSTATE_ISNS_SVC_ENABLED 0x0020 + #define MBOX_CMD_GET_DATABASE_ENTRY_DEFAULTS 0x006B +/* Mailbox 1 */ +#define IPV6_DEFAULT_DDB_ENTRY 0x0001 + #define MBOX_CMD_CONN_OPEN_SESS_LOGIN 0x0074 #define MBOX_CMD_GET_CRASH_RECORD 0x0076 /* 4010 only */ #define MBOX_CMD_GET_CONN_EVENT_LOG 0x0077 @@ -467,7 +474,8 @@ struct addr_ctrl_blk { uint8_t res0; /* 07 */ uint16_t eth_mtu_size; /* 08-09 */ uint16_t add_fw_options; /* 0A-0B */ -#define SERIALIZE_TASK_MGMT 0x0400 +#define ADFWOPT_SERIALIZE_TASK_MGMT 0x0400 +#define ADFWOPT_AUTOCONN_DISABLE 0x0002 uint8_t hb_interval; /* 0C */ uint8_t inst_num; /* 0D */ @@ -659,11 +667,30 @@ struct addr_ctrl_blk_def { /*************************************************************************/ +#define MAX_CHAP_ENTRIES_40XX 128 +#define MAX_CHAP_ENTRIES_82XX 1024 + +struct ql4_chap_table { + uint16_t link; + uint8_t flags; + uint8_t secret_len; +#define MIN_CHAP_SECRET_LEN 12 +#define MAX_CHAP_SECRET_LEN 100 + uint8_t secret[MAX_CHAP_SECRET_LEN]; +#define MAX_CHAP_NAME_LEN 256 + uint8_t name[MAX_CHAP_NAME_LEN]; + uint16_t reserved; +#define CHAP_VALID_COOKIE 0x4092 +#define CHAP_INVALID_COOKIE 0xFFEE + uint16_t cookie; +}; + struct dev_db_entry { uint16_t options; /* 00-01 */ #define DDB_OPT_DISC_SESSION 0x10 #define DDB_OPT_TARGET 0x02 /* device is a target */ #define DDB_OPT_IPV6_DEVICE 0x100 +#define DDB_OPT_AUTO_SENDTGTS_DISABLE 0x40 #define DDB_OPT_IPV6_NULL_LINK_LOCAL 0x800 /* post connection */ #define DDB_OPT_IPV6_FW_DEFINED_LINK_LOCAL 0x800 /* pre connection */ @@ -834,6 +861,7 @@ struct qla4_header { uint8_t entryStatus; uint8_t systemDefined; +#define SD_ISCSI_PDU 0x01 uint8_t entryCount; /* SyetemDefined definition */ @@ -991,21 +1019,22 @@ struct passthru0 { struct qla4_header hdr; /* 00-03 */ uint32_t handle; /* 04-07 */ uint16_t target; /* 08-09 */ - uint16_t connectionID; /* 0A-0B */ + uint16_t connection_id; /* 0A-0B */ #define ISNS_DEFAULT_SERVER_CONN_ID ((uint16_t)0x8000) - uint16_t controlFlags; /* 0C-0D */ + uint16_t control_flags; /* 0C-0D */ #define PT_FLAG_ETHERNET_FRAME 0x8000 #define PT_FLAG_ISNS_PDU 0x8000 #define PT_FLAG_SEND_BUFFER 0x0200 #define PT_FLAG_WAIT_4_RESPONSE 0x0100 +#define PT_FLAG_ISCSI_PDU 0x1000 uint16_t timeout; /* 0E-0F */ #define PT_DEFAULT_TIMEOUT 30 /* seconds */ - struct data_seg_a64 outDataSeg64; /* 10-1B */ + struct data_seg_a64 out_dsd; /* 10-1B */ uint32_t res1; /* 1C-1F */ - struct data_seg_a64 inDataSeg64; /* 20-2B */ + struct data_seg_a64 in_dsd; /* 20-2B */ uint8_t res2[20]; /* 2C-3F */ }; diff --git a/drivers/scsi/qla4xxx/ql4_glbl.h b/drivers/scsi/qla4xxx/ql4_glbl.h index e0a2abb..74d89d6 100644 --- a/drivers/scsi/qla4xxx/ql4_glbl.h +++ b/drivers/scsi/qla4xxx/ql4_glbl.h @@ -51,7 +51,7 @@ int qla4xxx_get_fwddb_entry(struct scsi_qla_host *ha, uint16_t *connection_id); int qla4xxx_set_ddb_entry(struct scsi_qla_host * ha, uint16_t fw_ddb_index, - dma_addr_t fw_ddb_entry_dma); + dma_addr_t fw_ddb_entry_dma, uint32_t *mbx_sts); uint8_t qla4xxx_get_ifcb(struct scsi_qla_host *ha, uint32_t *mbox_cmd, uint32_t *mbox_sts, dma_addr_t init_fw_cb_dma); int qla4xxx_conn_close_sess_logout(struct scsi_qla_host *ha, @@ -63,8 +63,8 @@ int qla4xxx_set_acb(struct scsi_qla_host *ha, uint32_t *mbox_cmd, uint32_t *mbox_sts, dma_addr_t acb_dma); int qla4xxx_get_acb(struct scsi_qla_host *ha, uint32_t *mbox_cmd, uint32_t *mbox_sts, dma_addr_t acb_dma); -void qla4xxx_mark_device_missing(struct scsi_qla_host *ha, - struct ddb_entry *ddb_entry); +void qla4xxx_mark_device_missing(struct iscsi_cls_session *cls_session); +int qla4xxx_session_online(struct iscsi_cls_session *session); u16 rd_nvram_word(struct scsi_qla_host *ha, int offset); void qla4xxx_get_crash_record(struct scsi_qla_host *ha); struct ddb_entry *qla4xxx_alloc_sess(struct scsi_qla_host *ha); @@ -153,6 +153,18 @@ void qla4_8xxx_need_qsnt_handler(struct scsi_qla_host *ha); void qla4_8xxx_clear_drv_active(struct scsi_qla_host *ha); void qla4_8xxx_set_drv_active(struct scsi_qla_host *ha); +int qla4xxx_conn_open(struct scsi_qla_host *ha, uint16_t fw_ddb_index); +int qla4xxx_set_param_ddbentry(struct scsi_qla_host *ha, + struct ddb_entry *ddb_entry, + struct iscsi_cls_conn *cls_conn, + uint32_t *mbx_sts); +int qla4xxx_session_logout_ddb(struct scsi_qla_host *ha, + struct ddb_entry *ddb_entry, int options); +int qla4xxx_req_ddb_entry(struct scsi_qla_host *ha, uint32_t fw_ddb_index, + uint32_t *mbx_sts); +int qla4xxx_clear_ddb_entry(struct scsi_qla_host *ha, uint32_t fw_ddb_index); +int qla4xxx_send_passthru0(struct iscsi_task *task); + extern int ql4xextended_error_logging; extern int ql4xdontresethba; extern int ql4xenablemsix; diff --git a/drivers/scsi/qla4xxx/ql4_init.c b/drivers/scsi/qla4xxx/ql4_init.c index 1f267d8..4165bfe 100644 --- a/drivers/scsi/qla4xxx/ql4_init.c +++ b/drivers/scsi/qla4xxx/ql4_init.c @@ -48,22 +48,16 @@ static void ql4xxx_set_mac_number(struct scsi_qla_host *ha) * @ha: pointer to host adapter structure. * @ddb_entry: pointer to device database entry * - * This routine deallocates and unlinks the specified ddb_entry from the - * adapter's + * This routine marks a DDB entry INVALID + * **/ void qla4xxx_free_ddb(struct scsi_qla_host *ha, - struct ddb_entry *ddb_entry) + struct ddb_entry *ddb_entry) { - /* Remove device entry from list */ - list_del_init(&ddb_entry->list); - /* Remove device pointer from index mapping arrays */ ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] = - (struct ddb_entry *) INVALID_ENTRY; + (struct ddb_entry *) INVALID_ENTRY; ha->tot_ddbs--; - - /* Free memory and scsi-ml struct for device entry */ - qla4xxx_destroy_sess(ddb_entry); } /** @@ -820,7 +814,8 @@ static int qla4xxx_build_ddb_list(struct scsi_qla_host *ha) ((!ipv6_device && *((uint32_t *)fw_ddb_entry->ip_addr)) || ipv6_device)) { - qla4xxx_set_ddb_entry(ha, fw_ddb_index, 0); + qla4xxx_set_ddb_entry(ha, fw_ddb_index, 0, + NULL); if (qla4xxx_get_fwddb_entry(ha, fw_ddb_index, NULL, 0, NULL, &next_fw_ddb_index, @@ -927,7 +922,7 @@ int qla4xxx_reinitialize_ddb_list(struct scsi_qla_host *ha) ddb_entry->fw_ddb_index)); iscsi_unblock_session(ddb_entry->sess); } else if (atomic_read(&ddb_entry->state) == DDB_STATE_ONLINE) - qla4xxx_mark_device_missing(ha, ddb_entry); + qla4xxx_mark_device_missing(ddb_entry->sess); } return status; } @@ -952,7 +947,7 @@ int qla4xxx_relogin_device(struct scsi_qla_host *ha, DEBUG2(printk("scsi%ld: Relogin ddb [%d]. TOV=%d\n", ha->host_no, ddb_entry->fw_ddb_index, relogin_timer)); - qla4xxx_set_ddb_entry(ha, ddb_entry->fw_ddb_index, 0); + qla4xxx_set_ddb_entry(ha, ddb_entry->fw_ddb_index, 0, NULL); return QLA_SUCCESS; } @@ -1415,9 +1410,10 @@ static void qla4xxx_add_device_dynamically(struct scsi_qla_host *ha, * This routine processes a Decive Database Changed AEN Event. **/ int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha, uint32_t fw_ddb_index, - uint32_t state, uint32_t conn_err) + uint32_t state, uint32_t conn_err) { struct ddb_entry * ddb_entry; + uint32_t old_fw_ddb_device_state; /* check for out of range index */ if (fw_ddb_index >= MAX_DDB_ENTRIES) @@ -1427,79 +1423,34 @@ int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha, uint32_t fw_ddb_index, ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, fw_ddb_index); /* Device does not currently exist in our database. */ if (ddb_entry == NULL) { - if (state == DDB_DS_SESSION_ACTIVE) - qla4xxx_add_device_dynamically(ha, fw_ddb_index); - return QLA_SUCCESS; + ql4_printk(KERN_ERR, ha, + "%s: No ddb_entry at FW index [%d]\n", __func__, + fw_ddb_index); + return QLA_ERROR; } - /* Device already exists in our database. */ - DEBUG2(printk("scsi%ld: %s DDB - old state= 0x%x, new state=0x%x for " - "index [%d]\n", ha->host_no, __func__, - ddb_entry->fw_ddb_device_state, state, fw_ddb_index)); + old_fw_ddb_device_state = ddb_entry->fw_ddb_device_state; + DEBUG2(ql4_printk(KERN_INFO, ha, + "%s: DDB - old state = 0x%x, new state = 0x%x for " + "index [%d]\n", __func__, + ddb_entry->fw_ddb_device_state, state, fw_ddb_index)); ddb_entry->fw_ddb_device_state = state; - /* Device is back online. */ - if ((ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) && - (atomic_read(&ddb_entry->state) != DDB_STATE_ONLINE)) { - atomic_set(&ddb_entry->state, DDB_STATE_ONLINE); - atomic_set(&ddb_entry->relogin_retry_count, 0); - atomic_set(&ddb_entry->relogin_timer, 0); - clear_bit(DF_RELOGIN, &ddb_entry->flags); - iscsi_unblock_session(ddb_entry->sess); - iscsi_session_event(ddb_entry->sess, - ISCSI_KEVENT_CREATE_SESSION); - /* - * Change the lun state to READY in case the lun TIMEOUT before - * the device came back. - */ - } else if (ddb_entry->fw_ddb_device_state != DDB_DS_SESSION_ACTIVE) { - /* Device went away, mark device missing */ - if (atomic_read(&ddb_entry->state) == DDB_STATE_ONLINE) { - DEBUG2(ql4_printk(KERN_INFO, ha, "%s mark missing " - "ddb_entry 0x%p sess 0x%p conn 0x%p\n", - __func__, ddb_entry, - ddb_entry->sess, ddb_entry->conn)); - qla4xxx_mark_device_missing(ha, ddb_entry); - } - /* - * Relogin if device state changed to a not active state. - * However, do not relogin if a RELOGIN is in process, or - * we are not allowed to relogin to this DDB. - */ - if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_FAILED && - !test_bit(DF_RELOGIN, &ddb_entry->flags) && - qla4_is_relogin_allowed(ha, conn_err)) { - /* - * This triggers a relogin. After the relogin_timer - * expires, the relogin gets scheduled. We must wait a - * minimum amount of time since receiving an 0x8014 AEN - * with failed device_state or a logout response before - * we can issue another relogin. - */ - /* Firmware pads this timeout: (time2wait +1). - * Driver retry to login should be longer than F/W. - * Otherwise F/W will fail - * set_ddb() mbx cmd with 0x4005 since it still - * counting down its time2wait. + DEBUG2(ql4_printk(KERN_INFO, ha, + "%s: Completing the AEN wait\n", __func__)); + complete(&ddb_entry->aen_comp); + + if (old_fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) { + if (state == DDB_DS_SESSION_FAILED) { + /* iscsi_session failure will cause userspace to + * stop the connection which in turn would block the + * iscsi_session and start relogin */ - atomic_set(&ddb_entry->relogin_timer, 0); - atomic_set(&ddb_entry->retry_relogin_timer, - ddb_entry->default_time2wait + 4); - DEBUG(printk("scsi%ld: %s: ddb[%d] " - "initiate relogin after %d seconds\n", - ha->host_no, __func__, - ddb_entry->fw_ddb_index, - ddb_entry->default_time2wait + 4)); - } else { - DEBUG(printk("scsi%ld: %s: ddb[%d] " - "relogin not initiated, state = %d, " - "ddb_entry->flags = 0x%lx\n", - ha->host_no, __func__, - ddb_entry->fw_ddb_index, - ddb_entry->fw_ddb_device_state, - ddb_entry->flags)); + iscsi_session_failure(ddb_entry->sess->dd_data, + ISCSI_ERR_CONN_FAILED); } } + return QLA_SUCCESS; } diff --git a/drivers/scsi/qla4xxx/ql4_iocb.c b/drivers/scsi/qla4xxx/ql4_iocb.c index 75fcd82..2c752ab 100644 --- a/drivers/scsi/qla4xxx/ql4_iocb.c +++ b/drivers/scsi/qla4xxx/ql4_iocb.c @@ -381,3 +381,69 @@ queuing_error: return QLA_ERROR; } +int qla4xxx_send_passthru0(struct iscsi_task *task) +{ + struct passthru0 *passthru_iocb; + struct iscsi_session *sess = task->conn->session; + struct ddb_entry *ddb_entry = (struct ddb_entry *)sess->dd_data; + struct scsi_qla_host *ha = ddb_entry->ha; + struct ql4_task_data *task_data = task->dd_data; + uint16_t ctrl_flags = 0; + unsigned long flags; + int ret = QLA_ERROR; + + spin_lock_irqsave(&ha->hardware_lock, flags); + task_data->iocb_req_cnt = 1; + /* Put the IOCB on the request queue */ + if (!qla4xxx_space_in_req_ring(ha, task_data->iocb_req_cnt)) + goto queuing_error; + + passthru_iocb = (struct passthru0 *) ha->request_ptr; + + memset(passthru_iocb, 0, sizeof(struct passthru0)); + passthru_iocb->hdr.entryType = ET_PASSTHRU0; + passthru_iocb->hdr.systemDefined = SD_ISCSI_PDU; + passthru_iocb->hdr.entryCount = task_data->iocb_req_cnt; + passthru_iocb->handle = task->itt; + passthru_iocb->target = cpu_to_le16(ddb_entry->fw_ddb_index); + passthru_iocb->timeout = cpu_to_le16(PT_DEFAULT_TIMEOUT); + + /* Setup the out & in DSDs */ + if (task->data_count) { + memcpy((uint8_t *)task_data->req_buffer + + sizeof(struct iscsi_hdr), task->data, task->data_count); + ctrl_flags |= PT_FLAG_SEND_BUFFER; + passthru_iocb->out_dsd.base.addrLow = + cpu_to_le32(LSDW(task_data->req_dma)); + passthru_iocb->out_dsd.base.addrHigh = + cpu_to_le32(MSDW(task_data->req_dma)); + passthru_iocb->out_dsd.count = + cpu_to_le32(task->data_count + + sizeof(struct iscsi_hdr)); + } + if (task_data->resp_len) { + passthru_iocb->in_dsd.base.addrLow = + cpu_to_le32(LSDW(task_data->resp_dma)); + passthru_iocb->in_dsd.base.addrHigh = + cpu_to_le32(MSDW(task_data->resp_dma)); + passthru_iocb->in_dsd.count = + cpu_to_le32(task_data->resp_len); + } + + ctrl_flags |= (PT_FLAG_ISCSI_PDU | PT_FLAG_WAIT_4_RESPONSE); + passthru_iocb->control_flags = cpu_to_le16(ctrl_flags); + + /* Update the request pointer */ + qla4xxx_advance_req_ring_ptr(ha); + wmb(); + + /* Track IOCB used */ + ha->iocb_cnt += task_data->iocb_req_cnt; + ha->req_q_count -= task_data->iocb_req_cnt; + ha->isp_ops->queue_iocb(ha); + ret = QLA_SUCCESS; + +queuing_error: + spin_unlock_irqrestore(&ha->hardware_lock, flags); + return ret; +} diff --git a/drivers/scsi/qla4xxx/ql4_isr.c b/drivers/scsi/qla4xxx/ql4_isr.c index 2f40ac7..70f45a1 100644 --- a/drivers/scsi/qla4xxx/ql4_isr.c +++ b/drivers/scsi/qla4xxx/ql4_isr.c @@ -219,8 +219,8 @@ static void qla4xxx_status_entry(struct scsi_qla_host *ha, * I/O to this device. We should get a ddb state change * AEN soon. */ - if (atomic_read(&ddb_entry->state) == DDB_STATE_ONLINE) - qla4xxx_mark_device_missing(ha, ddb_entry); + if (qla4xxx_session_online(ddb_entry->sess)) + qla4xxx_mark_device_missing(ddb_entry->sess); break; case SCS_DATA_UNDERRUN: @@ -301,8 +301,8 @@ static void qla4xxx_status_entry(struct scsi_qla_host *ha, * send I/O to this device. We should get a ddb * state change AEN soon. */ - if (atomic_read(&ddb_entry->state) == DDB_STATE_ONLINE) - qla4xxx_mark_device_missing(ha, ddb_entry); + if (qla4xxx_session_online(ddb_entry->sess)) + qla4xxx_mark_device_missing(ddb_entry->sess); cmd->result = DID_TRANSPORT_DISRUPTED << 16; break; @@ -336,6 +336,53 @@ status_entry_exit: } /** + * qla4xxx_passthru_status_entry - processes passthru status IOCBs (0x3C) + * @ha: Pointer to host adapter structure. + * @sts_entry: Pointer to status entry structure. + **/ +static void qla4xxx_passthru_status_entry(struct scsi_qla_host *ha, + struct passthru_status *sts_entry) +{ + struct iscsi_task *task; + struct ddb_entry *ddb_entry; + struct ql4_task_data *task_data; + struct iscsi_cls_conn *cls_conn; + struct iscsi_conn *conn; + itt_t itt; + uint32_t fw_ddb_index; + + itt = sts_entry->handle; + fw_ddb_index = le32_to_cpu(sts_entry->target); + + ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, fw_ddb_index); + + if (ddb_entry == NULL) { + ql4_printk(KERN_ERR, ha, "%s: Invalid target index = 0x%x\n", + __func__, sts_entry->target); + return; + } + + cls_conn = ddb_entry->conn; + conn = cls_conn->dd_data; + spin_lock(&conn->session->lock); + task = iscsi_itt_to_task(conn, itt); + spin_unlock(&conn->session->lock); + + if (task == NULL) { + ql4_printk(KERN_ERR, ha, "%s: Task is NULL\n", __func__); + return; + } + + task_data = (struct ql4_task_data *)task->dd_data; + memcpy(&task_data->sts, sts_entry, sizeof(struct passthru_status)); + ha->req_q_count += task_data->iocb_req_cnt; + ha->iocb_cnt -= task_data->iocb_req_cnt; + queue_work(ha->task_wq, &task_data->task_work); + + return; +} + +/** * qla4xxx_process_response_queue - process response queue completions * @ha: Pointer to host adapter structure. * @@ -370,6 +417,13 @@ void qla4xxx_process_response_queue(struct scsi_qla_host *ha) break; case ET_PASSTHRU_STATUS: + if (sts_entry->hdr.systemDefined == SD_ISCSI_PDU) + qla4xxx_passthru_status_entry(ha, + (struct passthru_status *)sts_entry); + else + ql4_printk(KERN_ERR, ha, + "%s: Invalid status received\n", + __func__); break; case ET_STATUS_CONTINUATION: @@ -1001,23 +1055,23 @@ void qla4xxx_process_aen(struct scsi_qla_host * ha, uint8_t process_aen) switch (mbox_sts[0]) { case MBOX_ASTS_DATABASE_CHANGED: - if (process_aen == FLUSH_DDB_CHANGED_AENS) { + switch (process_aen) { + case FLUSH_DDB_CHANGED_AENS: DEBUG2(printk("scsi%ld: AEN[%d] %04x, index " "[%d] state=%04x FLUSHED!\n", ha->host_no, ha->aen_out, mbox_sts[0], mbox_sts[2], mbox_sts[3])); break; + case PROCESS_ALL_AENS: + default: + /* Specific device. */ + if (mbox_sts[1] == 1) + qla4xxx_process_ddb_changed(ha, + mbox_sts[2], mbox_sts[3], + mbox_sts[4]); + break; } - case PROCESS_ALL_AENS: - default: - if (mbox_sts[1] == 0) { /* Global DB change. */ - qla4xxx_reinitialize_ddb_list(ha); - } else if (mbox_sts[1] == 1) { /* Specific device. */ - qla4xxx_process_ddb_changed(ha, mbox_sts[2], - mbox_sts[3], mbox_sts[4]); - } - break; } spin_lock_irqsave(&ha->hardware_lock, flags); } diff --git a/drivers/scsi/qla4xxx/ql4_mbx.c b/drivers/scsi/qla4xxx/ql4_mbx.c index a62435d..100b4f2 100644 --- a/drivers/scsi/qla4xxx/ql4_mbx.c +++ b/drivers/scsi/qla4xxx/ql4_mbx.c @@ -491,10 +491,11 @@ int qla4xxx_initialize_fw_cb(struct scsi_qla_host * ha) init_fw_cb->fw_options &= __constant_cpu_to_le16(~FWOPT_TARGET_MODE); - /* Set bit for "serialize task mgmt" all other bits need to be zero */ init_fw_cb->add_fw_options = 0; init_fw_cb->add_fw_options |= - __constant_cpu_to_le16(SERIALIZE_TASK_MGMT); + __constant_cpu_to_le16(ADFWOPT_SERIALIZE_TASK_MGMT); + init_fw_cb->add_fw_options |= + __constant_cpu_to_le16(ADFWOPT_AUTOCONN_DISABLE); if (qla4xxx_set_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma) != QLA_SUCCESS) { @@ -720,19 +721,38 @@ exit_get_fwddb: return status; } +int qla4xxx_conn_open(struct scsi_qla_host *ha, uint16_t fw_ddb_index) +{ + uint32_t mbox_cmd[MBOX_REG_COUNT]; + uint32_t mbox_sts[MBOX_REG_COUNT]; + int status; + + memset(&mbox_cmd, 0, sizeof(mbox_cmd)); + memset(&mbox_sts, 0, sizeof(mbox_sts)); + + mbox_cmd[0] = MBOX_CMD_CONN_OPEN; + mbox_cmd[1] = fw_ddb_index; + + status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 2, &mbox_cmd[0], + &mbox_sts[0]); + DEBUG2(ql4_printk(KERN_INFO, ha, + "%s: status = %d mbx0 = 0x%x mbx1 = 0x%x\n", + __func__, status, mbox_sts[0], mbox_sts[1])); + return status; +} + /** * qla4xxx_set_fwddb_entry - sets a ddb entry. * @ha: Pointer to host adapter structure. * @fw_ddb_index: Firmware's device database index - * @fw_ddb_entry: Pointer to firmware's ddb entry structure, or NULL. + * @fw_ddb_entry_dma: dma address of ddb entry + * @mbx_sts: mailbox 0 to be returned or NULL * * This routine initializes or updates the adapter's device database - * entry for the specified device. It also triggers a login for the - * specified device. Therefore, it may also be used as a secondary - * login routine when a NULL pointer is specified for the fw_ddb_entry. + * entry for the specified device. **/ int qla4xxx_set_ddb_entry(struct scsi_qla_host * ha, uint16_t fw_ddb_index, - dma_addr_t fw_ddb_entry_dma) + dma_addr_t fw_ddb_entry_dma, uint32_t *mbx_sts) { uint32_t mbox_cmd[MBOX_REG_COUNT]; uint32_t mbox_sts[MBOX_REG_COUNT]; @@ -751,13 +771,40 @@ int qla4xxx_set_ddb_entry(struct scsi_qla_host * ha, uint16_t fw_ddb_index, mbox_cmd[4] = sizeof(struct dev_db_entry); status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 5, &mbox_cmd[0], - &mbox_sts[0]); + &mbox_sts[0]); + if (mbx_sts) + *mbx_sts = mbox_sts[0]; DEBUG2(printk("scsi%ld: %s: status=%d mbx0=0x%x mbx4=0x%x\n", ha->host_no, __func__, status, mbox_sts[0], mbox_sts[4]);) return status; } +int qla4xxx_session_logout_ddb(struct scsi_qla_host *ha, + struct ddb_entry *ddb_entry, int options) +{ + int status; + uint32_t mbox_cmd[MBOX_REG_COUNT]; + uint32_t mbox_sts[MBOX_REG_COUNT]; + + memset(&mbox_cmd, 0, sizeof(mbox_cmd)); + memset(&mbox_sts, 0, sizeof(mbox_sts)); + + mbox_cmd[0] = MBOX_CMD_CONN_CLOSE_SESS_LOGOUT; + mbox_cmd[1] = ddb_entry->fw_ddb_index; + mbox_cmd[3] = options; + + status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 2, &mbox_cmd[0], + &mbox_sts[0]); + if (status != QLA_SUCCESS) { + DEBUG2(ql4_printk(KERN_INFO, ha, + "%s: MBOX_CMD_CONN_CLOSE_SESS_LOGOUT " + "failed sts %04X %04X", __func__, + mbox_sts[0], mbox_sts[1])); + } + + return status; +} /** * qla4xxx_get_crash_record - retrieves crash record. * @ha: Pointer to host adapter structure. @@ -1106,7 +1153,7 @@ int qla4xxx_get_fw_version(struct scsi_qla_host * ha) return QLA_SUCCESS; } -static int qla4xxx_get_default_ddb(struct scsi_qla_host *ha, +static int qla4xxx_get_default_ddb(struct scsi_qla_host *ha, uint32_t options, dma_addr_t dma_addr) { uint32_t mbox_cmd[MBOX_REG_COUNT]; @@ -1116,6 +1163,7 @@ static int qla4xxx_get_default_ddb(struct scsi_qla_host *ha, memset(&mbox_sts, 0, sizeof(mbox_sts)); mbox_cmd[0] = MBOX_CMD_GET_DATABASE_ENTRY_DEFAULTS; + mbox_cmd[1] = options; mbox_cmd[2] = LSDW(dma_addr); mbox_cmd[3] = MSDW(dma_addr); @@ -1128,8 +1176,10 @@ static int qla4xxx_get_default_ddb(struct scsi_qla_host *ha, return QLA_SUCCESS; } -static int qla4xxx_req_ddb_entry(struct scsi_qla_host *ha, uint32_t *ddb_index) +int qla4xxx_req_ddb_entry(struct scsi_qla_host *ha, uint32_t ddb_index, + uint32_t *mbx_sts) { + int status; uint32_t mbox_cmd[MBOX_REG_COUNT]; uint32_t mbox_sts[MBOX_REG_COUNT]; @@ -1137,30 +1187,25 @@ static int qla4xxx_req_ddb_entry(struct scsi_qla_host *ha, uint32_t *ddb_index) memset(&mbox_sts, 0, sizeof(mbox_sts)); mbox_cmd[0] = MBOX_CMD_REQUEST_DATABASE_ENTRY; - mbox_cmd[1] = MAX_PRST_DEV_DB_ENTRIES; + mbox_cmd[1] = ddb_index; - if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 3, &mbox_cmd[0], &mbox_sts[0]) != - QLA_SUCCESS) { - if (mbox_sts[0] == MBOX_STS_COMMAND_ERROR) { - *ddb_index = mbox_sts[2]; - } else { - DEBUG2(printk("scsi%ld: %s: failed status %04X\n", - ha->host_no, __func__, mbox_sts[0])); - return QLA_ERROR; - } - } else { - *ddb_index = MAX_PRST_DEV_DB_ENTRIES; + status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0], + &mbox_sts[0]); + if (status != QLA_SUCCESS) { + DEBUG2(ql4_printk(KERN_ERR, ha, "%s: failed status %04X\n", + __func__, mbox_sts[0])); } - return QLA_SUCCESS; + *mbx_sts = mbox_sts[0]; + return status; } - int qla4xxx_send_tgts(struct scsi_qla_host *ha, char *ip, uint16_t port) { struct dev_db_entry *fw_ddb_entry; dma_addr_t fw_ddb_entry_dma; uint32_t ddb_index; + uint32_t mbx_sts; int ret_val = QLA_SUCCESS; @@ -1178,7 +1223,7 @@ int qla4xxx_send_tgts(struct scsi_qla_host *ha, char *ip, uint16_t port) if (ret_val != QLA_SUCCESS) goto exit_send_tgts; - ret_val = qla4xxx_req_ddb_entry(ha, &ddb_index); + ret_val = qla4xxx_req_ddb_entry(ha, ddb_index, &mbx_sts); if (ret_val != QLA_SUCCESS) goto exit_send_tgts; @@ -1200,7 +1245,8 @@ int qla4xxx_send_tgts(struct scsi_qla_host *ha, char *ip, uint16_t port) fw_ddb_entry->ip_addr[2] = *(ip + 2); fw_ddb_entry->ip_addr[3] = *(ip + 3); - ret_val = qla4xxx_set_ddb_entry(ha, ddb_index, fw_ddb_entry_dma); + ret_val = qla4xxx_set_ddb_entry(ha, ddb_index, fw_ddb_entry_dma, + NULL); exit_send_tgts: dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), @@ -1209,6 +1255,29 @@ exit_send_tgts_no_free: return ret_val; } +int qla4xxx_clear_ddb_entry(struct scsi_qla_host *ha, uint32_t ddb_index) +{ + int status; + uint32_t mbox_cmd[MBOX_REG_COUNT]; + uint32_t mbox_sts[MBOX_REG_COUNT]; + + memset(&mbox_cmd, 0, sizeof(mbox_cmd)); + memset(&mbox_sts, 0, sizeof(mbox_sts)); + + mbox_cmd[0] = MBOX_CMD_CLEAR_DATABASE_ENTRY; + mbox_cmd[1] = ddb_index; + + status = qla4xxx_mailbox_command(ha, 2, 1, &mbox_cmd[0], + &mbox_sts[0]); + if (status != QLA_SUCCESS) { + DEBUG2(ql4_printk(KERN_ERR, ha, "%s: failed status %04X\n", + __func__, mbox_sts[0])); + } + + return status; +} + + int qla4xxx_set_flash(struct scsi_qla_host *ha, dma_addr_t dma_addr, uint32_t offset, uint32_t length, uint32_t options) { @@ -1351,3 +1420,216 @@ int qla4xxx_ping(struct scsi_qla_host *ha, uint32_t options, return status; } + +static int qla4xxx_set_chap(struct scsi_qla_host *ha, char *username, + char *password, uint16_t idx, int bidi) +{ + int ret = 0; + int rval = QLA_ERROR; + uint32_t offset = 0; + struct ql4_chap_table *chap_table; + dma_addr_t chap_dma; + + chap_table = dma_pool_alloc(ha->chap_dma_pool, GFP_KERNEL, &chap_dma); + if (chap_table == NULL) { + ret = -ENOMEM; + goto exit_set_chap; + } + + memset(chap_table, 0, sizeof(struct ql4_chap_table)); + if (bidi) + chap_table->flags |= BIT_6; /* peer */ + else + chap_table->flags |= BIT_7; /* local */ + chap_table->secret_len = strlen(password) + 1; + strncpy(chap_table->secret, password, 100); + strncpy(chap_table->name, username, 256); + chap_table->cookie = __constant_cpu_to_le16(CHAP_VALID_COOKIE); + offset = 0x06000000 | (idx * sizeof(struct ql4_chap_table)); + rval = qla4xxx_set_flash(ha, chap_dma, offset, + sizeof(struct ql4_chap_table), + FLASH_OPT_RMW_COMMIT); + dma_pool_free(ha->chap_dma_pool, chap_table, chap_dma); + if (rval != QLA_SUCCESS) + ret = -EINVAL; + +exit_set_chap: + return ret; +} + + +int qla4xxx_set_param_ddbentry(struct scsi_qla_host *ha, + struct ddb_entry *ddb_entry, + struct iscsi_cls_conn *cls_conn, + uint32_t *mbx_sts) +{ + struct dev_db_entry *fw_ddb_entry; + struct iscsi_conn *conn; + struct iscsi_session *sess; + struct qla_conn *qla_conn; + struct sockaddr *dst_addr; + dma_addr_t fw_ddb_entry_dma; + int status = QLA_SUCCESS; + int rval = 0; + struct sockaddr_in *addr; + struct sockaddr_in6 *addr6; + char *ip; + uint16_t iscsi_opts = 0; + uint32_t options = 0; + uint16_t idx; + int max_chap_entries = 0; + + fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), + &fw_ddb_entry_dma, GFP_KERNEL); + if (!fw_ddb_entry) { + DEBUG2(ql4_printk(KERN_ERR, ha, + "%s: Unable to allocate dma buffer.\n", + __func__)); + rval = -ENOMEM; + goto exit_set_param_no_free; + } + + conn = cls_conn->dd_data; + qla_conn = conn->dd_data; + sess = conn->session; + dst_addr = &qla_conn->qla_ep->dst_addr; + + if (dst_addr->sa_family == AF_INET6) + options |= IPV6_DEFAULT_DDB_ENTRY; + + status = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma); + if (status == QLA_ERROR) { + rval = -EINVAL; + goto exit_set_param; + } + + iscsi_opts = le16_to_cpu(fw_ddb_entry->iscsi_options); + memset(fw_ddb_entry->iscsi_alias, 0, sizeof(fw_ddb_entry->iscsi_alias)); + + memset(fw_ddb_entry->iscsi_name, 0, sizeof(fw_ddb_entry->iscsi_name)); + + if (sess->targetname != NULL) { + memcpy(fw_ddb_entry->iscsi_name, sess->targetname, + min(strlen(sess->targetname), + sizeof(fw_ddb_entry->iscsi_name))); + } + + memset(fw_ddb_entry->ip_addr, 0, sizeof(fw_ddb_entry->ip_addr)); + memset(fw_ddb_entry->tgt_addr, 0, sizeof(fw_ddb_entry->tgt_addr)); + + fw_ddb_entry->options = DDB_OPT_TARGET | DDB_OPT_AUTO_SENDTGTS_DISABLE; + + if (dst_addr->sa_family == AF_INET) { + addr = (struct sockaddr_in *)dst_addr; + ip = (char *)&addr->sin_addr; + memcpy(fw_ddb_entry->ip_addr, ip, IP_ADDR_LEN); + fw_ddb_entry->port = cpu_to_le16(ntohs(addr->sin_port)); + DEBUG2(ql4_printk(KERN_INFO, ha, + "%s: Destination Address [%pI4]: index [%d]\n", + __func__, fw_ddb_entry->ip_addr, + ddb_entry->fw_ddb_index)); + } else if (dst_addr->sa_family == AF_INET6) { + addr6 = (struct sockaddr_in6 *)dst_addr; + ip = (char *)&addr6->sin6_addr; + memcpy(fw_ddb_entry->ip_addr, ip, IPv6_ADDR_LEN); + fw_ddb_entry->port = cpu_to_le16(ntohs(addr6->sin6_port)); + fw_ddb_entry->options |= DDB_OPT_IPV6_DEVICE; + DEBUG2(ql4_printk(KERN_INFO, ha, + "%s: Destination Address [%pI6]: index [%d]\n", + __func__, fw_ddb_entry->ip_addr, + ddb_entry->fw_ddb_index)); + } else { + ql4_printk(KERN_ERR, ha, + "%s: Failed to get IP Address\n", + __func__); + rval = -EINVAL; + goto exit_set_param; + } + + if (is_qla8022(ha)) + max_chap_entries = MAX_CHAP_ENTRIES_82XX; + else + max_chap_entries = MAX_CHAP_ENTRIES_40XX; + /* CHAP */ + if (sess->username != NULL && sess->password != NULL) { + if (strlen(sess->username) && strlen(sess->password)) { + iscsi_opts |= BIT_7; + idx = ddb_entry->fw_ddb_index * 2; + if (idx > max_chap_entries) { + ql4_printk(KERN_ERR, ha, + "%s: Invalid ddb or chap index\n", + __func__); + rval = -EINVAL; + goto exit_set_param; + } + + rval = qla4xxx_set_chap(ha, sess->username, + sess->password, idx, 0); + if (rval) + goto exit_set_param; + + fw_ddb_entry->chap_tbl_idx = cpu_to_le16(idx); + } + } + + if (sess->username_in != NULL && sess->password_in != NULL) { + /* Check if BIDI CHAP */ + if (strlen(sess->username_in) && strlen(sess->password_in)) { + iscsi_opts |= BIT_4; + idx = (ddb_entry->fw_ddb_index * 2) + 1; + if (idx > max_chap_entries) { + ql4_printk(KERN_ERR, ha, + "%s: Invalid ddb or bidi chap " + "index\n", __func__); + rval = -EINVAL; + goto exit_set_param; + } + rval = qla4xxx_set_chap(ha, sess->username_in, + sess->password_in, idx, 0); + if (rval) + goto exit_set_param; + } + } + + if (sess->initial_r2t_en) + iscsi_opts |= BIT_10; + + if (sess->imm_data_en) + iscsi_opts |= BIT_11; + + fw_ddb_entry->iscsi_options = cpu_to_le16(iscsi_opts); + + if (conn->max_recv_dlength) + fw_ddb_entry->iscsi_max_rcv_data_seg_len = + __constant_cpu_to_le16((conn->max_recv_dlength / 512)); + + if (sess->max_r2t) + fw_ddb_entry->iscsi_max_outsnd_r2t = cpu_to_le16(sess->max_r2t); + + if (sess->first_burst) + fw_ddb_entry->iscsi_first_burst_len = + __constant_cpu_to_le16((sess->first_burst / 512)); + + if (sess->max_burst) + fw_ddb_entry->iscsi_max_burst_len = + __constant_cpu_to_le16((sess->max_burst / 512)); + + if (sess->time2wait) + fw_ddb_entry->iscsi_def_time2wait = + cpu_to_le16(sess->time2wait); + + if (sess->time2retain) + fw_ddb_entry->iscsi_def_time2retain = + cpu_to_le16(sess->time2retain); + + status = qla4xxx_set_ddb_entry(ha, ddb_entry->fw_ddb_index, + fw_ddb_entry_dma, mbx_sts); + + if (status != QLA_SUCCESS) + rval = -EINVAL; +exit_set_param: + dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), + fw_ddb_entry, fw_ddb_entry_dma); +exit_set_param_no_free: + return rval; +} diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c index 6c8a53a..8c9eea2 100644 --- a/drivers/scsi/qla4xxx/ql4_os.c +++ b/drivers/scsi/qla4xxx/ql4_os.c @@ -63,6 +63,8 @@ MODULE_PARM_DESC(ql4xsess_recovery_tmo, "Target Session Recovery Timeout.\n" " Default: 30 sec."); + +static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha); /* * SCSI host template entry points */ @@ -76,20 +78,42 @@ static int qla4xxx_tgt_dscvr(struct Scsi_Host *shost, struct sockaddr *dst_addr); static int qla4xxx_conn_get_param(struct iscsi_cls_conn *conn, enum iscsi_param param, char *buf); -static int qla4xxx_sess_get_param(struct iscsi_cls_session *sess, - enum iscsi_param param, char *buf); static int qla4xxx_host_get_param(struct Scsi_Host *shost, enum iscsi_host_param param, char *buf); static int qla4xxx_set_net_config(struct Scsi_Host *shost, char *data, int count); static int qla4xxx_get_iface_param(struct iscsi_iface *iface, enum iscsi_net_param_type param, char *buf); -static void qla4xxx_recovery_timedout(struct iscsi_cls_session *session); static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc); +static struct iscsi_endpoint *qla4xxx_ep_connect(struct Scsi_Host *shost, + struct sockaddr *dst_addr, + int non_blocking); +static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms); +static void qla4xxx_ep_disconnect(struct iscsi_endpoint *ep); +static int qla4xxx_get_ep_param(struct iscsi_endpoint *ep, + enum iscsi_param param, char *buf); +static int qla4xxx_conn_start(struct iscsi_cls_conn *conn); +static struct iscsi_cls_conn * +qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx); +static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session, + struct iscsi_cls_conn *cls_conn, + uint64_t transport_fd, int is_leading); +static void qla4xxx_conn_destroy(struct iscsi_cls_conn *conn); +static struct iscsi_cls_session * +qla4xxx_session_create(struct iscsi_endpoint *ep, uint16_t cmds_max, + uint16_t qdepth, uint32_t initial_cmdsn); +static void qla4xxx_session_destroy(struct iscsi_cls_session *sess); +static void qla4xxx_task_work(struct work_struct *wdata); +static int qla4xxx_alloc_pdu(struct iscsi_task *, uint8_t); +static int qla4xxx_task_xmit(struct iscsi_task *); +static void qla4xxx_task_cleanup(struct iscsi_task *); +static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session); static int qla4xxx_send_ping(struct Scsi_Host *shost, uint32_t iface_num, uint32_t iface_type, uint32_t payload_size, struct sockaddr *dst_addr); - +static void qla4xxx_update_session_conn_param(struct scsi_qla_host *ha, + struct ddb_entry *ddb_entry, + struct dev_db_entry *fw_ddb_entrya); /* * SCSI host template entry points */ @@ -122,9 +146,6 @@ static struct scsi_host_template qla4xxx_driver_template = { .slave_alloc = qla4xxx_slave_alloc, .slave_destroy = qla4xxx_slave_destroy, - .scan_finished = iscsi_scan_finished, - .scan_start = qla4xxx_scan_start, - .this_id = -1, .cmd_per_lun = 3, .use_clustering = ENABLE_CLUSTERING, @@ -136,11 +157,15 @@ static struct scsi_host_template qla4xxx_driver_template = { static struct iscsi_transport qla4xxx_iscsi_transport = { .owner = THIS_MODULE, .name = DRIVER_NAME, - .caps = CAP_FW_DB | CAP_SENDTARGETS_OFFLOAD | - CAP_DATA_PATH_OFFLOAD, + .caps = CAP_TEXT_NEGO | + CAP_DATA_PATH_OFFLOAD | CAP_HDRDGST | + CAP_DATADGST | CAP_LOGIN_OFFLOAD | + CAP_MULTI_R2T, .param_mask = ISCSI_CONN_PORT | ISCSI_CONN_ADDRESS | ISCSI_TARGET_NAME | ISCSI_TPGT | - ISCSI_TARGET_ALIAS, + ISCSI_MAX_BURST | ISCSI_MAX_R2T | + ISCSI_FIRST_BURST | ISCSI_MAX_RECV_DLENGTH | + ISCSI_MAX_XMIT_DLENGTH | ISCSI_TARGET_ALIAS, .host_param_mask = ISCSI_HOST_HWADDRESS | ISCSI_HOST_IPADDRESS | ISCSI_HOST_INITIATOR_NAME, @@ -162,17 +187,135 @@ static struct iscsi_transport qla4xxx_iscsi_transport = { ISCSI_NET_VLAN_PRIORITY | ISCSI_NET_VLAN_ENABLED, .tgt_dscvr = qla4xxx_tgt_dscvr, + .create_session = qla4xxx_session_create, + .destroy_session = qla4xxx_session_destroy, + .start_conn = qla4xxx_conn_start, + .create_conn = qla4xxx_conn_create, + .bind_conn = qla4xxx_conn_bind, + .stop_conn = iscsi_conn_stop, + .destroy_conn = qla4xxx_conn_destroy, + .set_param = iscsi_set_param, .get_conn_param = qla4xxx_conn_get_param, - .get_session_param = qla4xxx_sess_get_param, + .get_session_param = iscsi_session_get_param, .get_host_param = qla4xxx_host_get_param, .set_net_config = qla4xxx_set_net_config, - .session_recovery_timedout = qla4xxx_recovery_timedout, .get_iface_param = qla4xxx_get_iface_param, .send_ping = qla4xxx_send_ping, + .get_ep_param = qla4xxx_get_ep_param, + .ep_connect = qla4xxx_ep_connect, + .ep_poll = qla4xxx_ep_poll, + .ep_disconnect = qla4xxx_ep_disconnect, + .send_pdu = iscsi_conn_send_pdu, + .xmit_task = qla4xxx_task_xmit, + .cleanup_task = qla4xxx_task_cleanup, + .alloc_pdu = qla4xxx_alloc_pdu, }; static struct scsi_transport_template *qla4xxx_scsi_transport; +static struct iscsi_endpoint * +qla4xxx_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr, + int non_blocking) +{ + int ret; + struct iscsi_endpoint *ep; + struct qla_endpoint *qla_ep; + struct scsi_qla_host *ha; + struct sockaddr_in *addr; + struct sockaddr_in6 *addr6; + + DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); + if (!shost) { + ret = -ENXIO; + printk(KERN_ERR "%s: shost is NULL\n", + __func__); + return ERR_PTR(ret); + } + + ha = iscsi_host_priv(shost); + if (qla4xxx_wait_for_hba_online(ha) == QLA_ERROR) { + ret = -EBUSY; + if (!test_bit(AF_ONLINE, &ha->flags)) + ql4_printk(KERN_WARNING, ha, + "%s: adapter not online\n", __func__); + else if (!test_bit(AF_LINK_UP, &ha->flags)) + ql4_printk(KERN_WARNING, ha, + "%s: adapter link not up\n", __func__); + return ERR_PTR(ret); + } + + ep = iscsi_create_endpoint(sizeof(struct qla_endpoint)); + if (!ep) { + ret = -ENOMEM; + return ERR_PTR(ret); + } + + qla_ep = (struct qla_endpoint *)ep->dd_data; + memset(qla_ep, 0, sizeof(struct qla_endpoint)); + if (dst_addr->sa_family == AF_INET) { + memcpy(&qla_ep->dst_addr, dst_addr, sizeof(struct sockaddr_in)); + addr = (struct sockaddr_in *)&qla_ep->dst_addr; + DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI4\n", __func__, + (char *)&addr->sin_addr)); + } else if (dst_addr->sa_family == AF_INET6) { + memcpy(&qla_ep->dst_addr, dst_addr, + sizeof(struct sockaddr_in6)); + addr6 = (struct sockaddr_in6 *)&qla_ep->dst_addr; + DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI6\n", __func__, + (char *)&addr6->sin6_addr)); + } + + qla_ep->host = shost; + + return ep; +} + +/** + * qla4xxx_ep_poll + * @ep: endpoint to be used + * @timeout_ms: timeout specified in millisecs + * + * Nothing to be done for qla4xxx, connection open and + * login will happen in start_conn. + */ +static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms) +{ + DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); + return 1; +} + +static void qla4xxx_ep_disconnect(struct iscsi_endpoint *ep) +{ + DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); + iscsi_destroy_endpoint(ep); +} + +static int qla4xxx_get_ep_param(struct iscsi_endpoint *ep, + enum iscsi_param param, + char *buf) +{ + struct qla_endpoint *qla_ep = ep->dd_data; + struct sockaddr *dst_addr; + + DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); + + switch (param) { + case ISCSI_PARAM_CONN_PORT: + case ISCSI_PARAM_CONN_ADDRESS: + if (!qla_ep) + return -ENOTCONN; + + dst_addr = (struct sockaddr *)&qla_ep->dst_addr; + if (!dst_addr) + return -ENOTCONN; + + return iscsi_conn_get_addr_param((struct sockaddr_storage *) + &qla_ep->dst_addr, param, buf); + default: + return -ENOSYS; + } +} + static int qla4xxx_send_ping(struct Scsi_Host *shost, uint32_t iface_num, uint32_t iface_type, uint32_t payload_size, struct sockaddr *dst_addr) @@ -353,31 +496,19 @@ static int qla4xxx_get_iface_param(struct iscsi_iface *iface, static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc) { struct iscsi_cls_session *session; - struct ddb_entry *ddb_entry; + struct iscsi_session *sess; + unsigned long flags; + enum blk_eh_timer_return ret = BLK_EH_NOT_HANDLED; session = starget_to_session(scsi_target(sc->device)); - ddb_entry = session->dd_data; + sess = session->dd_data; - /* if we are not logged in then the LLD is going to clean up the cmd */ - if (atomic_read(&ddb_entry->state) != DDB_STATE_ONLINE) - return BLK_EH_RESET_TIMER; - else - return BLK_EH_NOT_HANDLED; -} + spin_lock_irqsave(&session->lock, flags); + if (session->state == ISCSI_SESSION_FAILED) + ret = BLK_EH_RESET_TIMER; + spin_unlock_irqrestore(&session->lock, flags); -static void qla4xxx_recovery_timedout(struct iscsi_cls_session *session) -{ - struct ddb_entry *ddb_entry = session->dd_data; - struct scsi_qla_host *ha = ddb_entry->ha; - - if (atomic_read(&ddb_entry->state) != DDB_STATE_ONLINE) { - atomic_set(&ddb_entry->state, DDB_STATE_DEAD); - - DEBUG2(printk("scsi%ld: %s: ddb [%d] session recovery timeout " - "of (%d) secs exhausted, marking device DEAD.\n", - ha->host_no, __func__, ddb_entry->fw_ddb_index, - ddb_entry->sess->recovery_tmo)); - } + return ret; } static int qla4xxx_host_get_param(struct Scsi_Host *shost, @@ -716,54 +847,45 @@ exit_init_fw_cb: return rval; } -static int qla4xxx_sess_get_param(struct iscsi_cls_session *sess, - enum iscsi_param param, char *buf) -{ - struct ddb_entry *ddb_entry = sess->dd_data; - int len; - - switch (param) { - case ISCSI_PARAM_TARGET_NAME: - len = snprintf(buf, PAGE_SIZE - 1, "%s\n", - ddb_entry->iscsi_name); - break; - case ISCSI_PARAM_TPGT: - len = sprintf(buf, "%u\n", ddb_entry->tpgt); - break; - case ISCSI_PARAM_TARGET_ALIAS: - len = snprintf(buf, PAGE_SIZE - 1, "%s\n", - ddb_entry->iscsi_alias); - break; - default: - return -ENOSYS; - } - - return len; -} - -static int qla4xxx_conn_get_param(struct iscsi_cls_conn *conn, +static int qla4xxx_conn_get_param(struct iscsi_cls_conn *cls_conn, enum iscsi_param param, char *buf) { - struct iscsi_cls_session *session; - struct ddb_entry *ddb_entry; - int len; + struct iscsi_conn *conn; + struct qla_conn *qla_conn; + struct sockaddr *dst_addr; + struct sockaddr_in *addr; + struct sockaddr_in6 *addr6; + int len = 0; - session = iscsi_dev_to_session(conn->dev.parent); - ddb_entry = session->dd_data; + conn = cls_conn->dd_data; + qla_conn = conn->dd_data; + dst_addr = &qla_conn->qla_ep->dst_addr; switch (param) { case ISCSI_PARAM_CONN_PORT: - len = sprintf(buf, "%hu\n", ddb_entry->port); + if (dst_addr->sa_family == AF_INET) { + addr = (struct sockaddr_in *)dst_addr; + len = sprintf(buf, "%hu\n", ntohs(addr->sin_port)); + } else if (dst_addr->sa_family == AF_INET6) { + addr6 = (struct sockaddr_in6 *)dst_addr; + len = sprintf(buf, "%hu\n", ntohs(addr6->sin6_port)); + } break; case ISCSI_PARAM_CONN_ADDRESS: - /* TODO: what are the ipv6 bits */ - len = sprintf(buf, "%pI4\n", &ddb_entry->ip_addr); + if (dst_addr->sa_family == AF_INET) { + addr = (struct sockaddr_in *)dst_addr; + len = sprintf(buf, "%pI4\n", &addr->sin_addr); + } else if (dst_addr->sa_family == AF_INET6) { + addr6 = (struct sockaddr_in6 *)dst_addr; + len = sprintf(buf, "%pI6\n", &addr6->sin6_addr); + } break; default: - return -ENOSYS; + return iscsi_conn_get_param(cls_conn, param, buf); } return len; + } static int qla4xxx_tgt_dscvr(struct Scsi_Host *shost, @@ -775,7 +897,7 @@ static int qla4xxx_tgt_dscvr(struct Scsi_Host *shost, struct sockaddr_in6 *addr6; int ret = 0; - ha = (struct scsi_qla_host *) shost->hostdata; + ha = (struct scsi_qla_host *) to_qla_host(shost); switch (type) { case ISCSI_TGT_DSCVR_SEND_TARGETS: @@ -854,9 +976,419 @@ struct ddb_entry *qla4xxx_alloc_sess(struct scsi_qla_host *ha) return ddb_entry; } +static struct iscsi_cls_session * +qla4xxx_session_create(struct iscsi_endpoint *ep, + uint16_t cmds_max, uint16_t qdepth, + uint32_t initial_cmdsn) +{ + struct iscsi_cls_session *cls_sess; + struct scsi_qla_host *ha; + struct qla_endpoint *qla_ep; + struct ddb_entry *ddb_entry; + uint32_t ddb_index; + uint32_t mbx_sts = 0; + struct iscsi_session *sess; + struct sockaddr *dst_addr; + int ret; + + DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); + if (!ep) { + printk(KERN_ERR "qla4xxx: missing ep.\n"); + return NULL; + } + + qla_ep = (struct qla_endpoint *)ep->dd_data; + dst_addr = (struct sockaddr *)&qla_ep->dst_addr; + ha = to_qla_host(qla_ep->host); +get_ddb_index: + ddb_index = find_first_zero_bit(ha->ddb_idx_map, MAX_DDB_ENTRIES); + + if (ddb_index >= MAX_DDB_ENTRIES) { + DEBUG2(ql4_printk(KERN_INFO, ha, + "Free DDB index not available\n")); + return NULL; + } + + if (test_and_set_bit(ddb_index, ha->ddb_idx_map)) + goto get_ddb_index; + + DEBUG2(ql4_printk(KERN_INFO, ha, + "Found a free DDB index at %d\n", ddb_index)); + ret = qla4xxx_req_ddb_entry(ha, ddb_index, &mbx_sts); + if (ret == QLA_ERROR) { + if (mbx_sts == MBOX_STS_COMMAND_ERROR) { + ql4_printk(KERN_INFO, ha, + "DDB index = %d not available trying next\n", + ddb_index); + goto get_ddb_index; + } + DEBUG2(ql4_printk(KERN_INFO, ha, + "Free FW DDB not available\n")); + return NULL; + } + + cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, qla_ep->host, + cmds_max, sizeof(struct ddb_entry), + sizeof(struct ql4_task_data), + initial_cmdsn, ddb_index); + if (!cls_sess) + return NULL; + + sess = (struct iscsi_session *)cls_sess->dd_data; + ddb_entry = (struct ddb_entry *)sess->dd_data; + ddb_entry->fw_ddb_index = ddb_index; + ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE; + ddb_entry->ha = ha; + ddb_entry->sess = cls_sess; + cls_sess->recovery_tmo = ql4xsess_recovery_tmo; + init_completion(&ddb_entry->aen_comp); + ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] = ddb_entry; + ha->tot_ddbs++; + + return cls_sess; +} + +static void qla4xxx_session_destroy(struct iscsi_cls_session *cls_sess) +{ + struct iscsi_session *sess; + struct ddb_entry *ddb_entry; + struct scsi_qla_host *ha; + unsigned long flags; + + DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); + sess = cls_sess->dd_data; + ddb_entry = (struct ddb_entry *)sess->dd_data; + ha = ddb_entry->ha; + + spin_lock_irqsave(&ha->hardware_lock, flags); + qla4xxx_free_ddb(ha, ddb_entry); + spin_unlock_irqrestore(&ha->hardware_lock, flags); + iscsi_session_teardown(cls_sess); +} + +static struct iscsi_cls_conn * +qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx) +{ + struct iscsi_cls_conn *cls_conn; + struct iscsi_session *sess; + struct ddb_entry *ddb_entry; + + DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); + cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn), + conn_idx); + sess = (struct iscsi_session *)cls_sess->dd_data; + ddb_entry = (struct ddb_entry *)sess->dd_data; + ddb_entry->conn = cls_conn; + + return cls_conn; +} + +static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session, + struct iscsi_cls_conn *cls_conn, + uint64_t transport_fd, int is_leading) +{ + struct iscsi_conn *conn; + struct qla_conn *qla_conn; + struct iscsi_endpoint *ep; + + DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); + + if (iscsi_conn_bind(cls_session, cls_conn, is_leading)) + return -EINVAL; + ep = iscsi_lookup_endpoint(transport_fd); + conn = cls_conn->dd_data; + qla_conn = conn->dd_data; + qla_conn->qla_ep = ep->dd_data; + + return 0; +} + +static int qla4xxx_conn_start(struct iscsi_cls_conn *cls_conn) +{ + struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn); + struct iscsi_session *sess; + struct ddb_entry *ddb_entry; + struct scsi_qla_host *ha; + struct dev_db_entry *fw_ddb_entry; + dma_addr_t fw_ddb_entry_dma; + uint32_t fw_ddb_device_state; + uint32_t mbx_sts = 0; + int ret = 0; + int status = QLA_SUCCESS; + + DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); + sess = cls_sess->dd_data; + ddb_entry = sess->dd_data; + ha = ddb_entry->ha; + + fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), + &fw_ddb_entry_dma, GFP_KERNEL); + if (!fw_ddb_entry) { + ql4_printk(KERN_ERR, ha, + "%s: Unable to allocate dma buffer\n", __func__); + return -ENOMEM; + } + + ret = qla4xxx_set_param_ddbentry(ha, ddb_entry, cls_conn, &mbx_sts); + if (ret) { + /* If iscsid is stopped and started then no need to do + * set param again since ddb state will be already + * active and FW does not allow set ddb to an + * active session. + */ + if (mbx_sts) + if (ddb_entry->fw_ddb_device_state == + DDB_DS_SESSION_ACTIVE) + goto get_state; + + ql4_printk(KERN_ERR, ha, "%s: Failed set param for index[%d]\n", + __func__, ddb_entry->fw_ddb_index); + goto exit_conn_start; + } + + init_completion(&ddb_entry->aen_comp); + status = qla4xxx_conn_open(ha, ddb_entry->fw_ddb_index); + if (status == QLA_ERROR) { + ql4_printk(KERN_ERR, ha, "%s: Login failed: %s %s:%d\n", + __func__, ddb_entry->iscsi_name, + ddb_entry->ip_addr, ddb_entry->port); + ret = -EINVAL; + goto exit_conn_start; + } + +wait_for_aen: + /* Wait till DDB state changes to discovery or active state. */ + wait_for_completion_timeout(&ddb_entry->aen_comp, + AEN_WAIT_TOV * HZ); +get_state: + status = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, + fw_ddb_entry, fw_ddb_entry_dma, NULL, + NULL, &fw_ddb_device_state, NULL, + NULL, NULL); + if (status == QLA_ERROR) { + ql4_printk(KERN_ERR, ha, + "%s: failed get ddb entry for " + "fw_ddb_index %d state %d\n", __func__, + ddb_entry->fw_ddb_index, fw_ddb_device_state); + ret = -EINVAL; + goto exit_conn_start; + } + + ddb_entry->fw_ddb_device_state = fw_ddb_device_state; + DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Device state is [%d]\n", + __func__, fw_ddb_device_state)); + switch (fw_ddb_device_state) { + case DDB_DS_DISCOVERY: + ret = 0; + break; + case DDB_DS_SESSION_ACTIVE: + iscsi_conn_start(cls_conn); + qla4xxx_update_session_conn_param(ha, ddb_entry, fw_ddb_entry); + + /* Inform userspace of session creation, also triggers + * LUN discovery + */ + iscsi_session_event(ddb_entry->sess, + ISCSI_KEVENT_CREATE_SESSION); + ret = 0; + break; + case DDB_DS_LOGIN_IN_PROCESS: + goto wait_for_aen; + default: + ret = -EAGAIN; + } + +exit_conn_start: + dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), + fw_ddb_entry, fw_ddb_entry_dma); + return ret; +} + +static void qla4xxx_conn_destroy(struct iscsi_cls_conn *cls_conn) +{ + struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn); + struct iscsi_session *sess; + struct scsi_qla_host *ha; + struct ddb_entry *ddb_entry; + int options; + + DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); + sess = cls_sess->dd_data; + ddb_entry = sess->dd_data; + ha = ddb_entry->ha; + + init_completion(&ddb_entry->aen_comp); + options = LOGOUT_OPTION_CLOSE_SESSION; + if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR) + ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__); + else { + wait_for_completion_timeout(&ddb_entry->aen_comp, + AEN_WAIT_TOV * HZ); + qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index); + } + + /* Clear the DDB bit so that next login can use the bit + * if FW is not clearing the DDB entry then set DDB will fail anyways + */ + clear_bit(ddb_entry->fw_ddb_index, ha->ddb_idx_map); +} + +static void qla4xxx_task_work(struct work_struct *wdata) +{ + struct ql4_task_data *task_data; + struct scsi_qla_host *ha; + struct passthru_status *sts; + struct iscsi_task *task; + struct iscsi_hdr *hdr; + uint8_t *data; + uint32_t data_len; + struct iscsi_conn *conn; + int hdr_len; + itt_t itt; + + task_data = container_of(wdata, struct ql4_task_data, task_work); + ha = task_data->ha; + task = task_data->task; + sts = &task_data->sts; + hdr_len = sizeof(struct iscsi_hdr); + + DEBUG2(printk(KERN_INFO "Status returned\n")); + DEBUG2(qla4xxx_dump_buffer(sts, 64)); + DEBUG2(printk(KERN_INFO "Response buffer")); + DEBUG2(qla4xxx_dump_buffer(task_data->resp_buffer, 64)); + + conn = task->conn; + + switch (sts->completionStatus) { + case PASSTHRU_STATUS_COMPLETE: + hdr = (struct iscsi_hdr *)task_data->resp_buffer; + /* Assign back the itt in hdr, until we use the PREASSIGN_TAG */ + itt = sts->handle; + hdr->itt = itt; + data = task_data->resp_buffer + hdr_len; + data_len = task_data->resp_len - hdr_len; + iscsi_complete_pdu(conn, hdr, data, data_len); + break; + default: + ql4_printk(KERN_ERR, ha, "Passthru failed status = 0x%x\n", + sts->completionStatus); + break; + } + return; +} + +static int qla4xxx_alloc_pdu(struct iscsi_task *task, uint8_t opcode) +{ + struct ql4_task_data *task_data; + struct iscsi_session *sess; + struct ddb_entry *ddb_entry; + struct scsi_qla_host *ha; + int hdr_len; + + sess = task->conn->session; + ddb_entry = (struct ddb_entry *)sess->dd_data; + ha = ddb_entry->ha; + task_data = (struct ql4_task_data *)task->dd_data; + memset(task_data, 0, sizeof(struct ql4_task_data)); + + if (task->sc) { + ql4_printk(KERN_INFO, ha, + "%s: SCSI Commands not implemented\n", __func__); + return -EINVAL; + } + + hdr_len = sizeof(struct iscsi_hdr); + task_data->ha = ha; + task_data->task = task; + + if (task->data_count) { + task_data->data_dma = dma_map_single(&ha->pdev->dev, task->data, + task->data_count, + PCI_DMA_TODEVICE); + } + + DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n", + __func__, task->conn->max_recv_dlength, hdr_len)); + + task_data->resp_len = task->conn->max_recv_dlength; + task_data->resp_buffer = dma_alloc_coherent(&ha->pdev->dev, + task_data->resp_len, + &task_data->resp_dma, + GFP_ATOMIC); + if (!task_data->resp_buffer) + goto exit_alloc_pdu; + + task_data->req_buffer = dma_alloc_coherent(&ha->pdev->dev, + task->data_count + hdr_len, + &task_data->req_dma, + GFP_ATOMIC); + if (!task_data->req_buffer) + goto exit_alloc_pdu; + + task->hdr = task_data->req_buffer; + + INIT_WORK(&task_data->task_work, qla4xxx_task_work); + + return 0; + +exit_alloc_pdu: + if (task_data->resp_buffer) + dma_free_coherent(&ha->pdev->dev, task_data->resp_len, + task_data->resp_buffer, task_data->resp_dma); + + if (task_data->req_buffer) + dma_free_coherent(&ha->pdev->dev, task->data_count + hdr_len, + task_data->req_buffer, task_data->req_dma); + return -ENOMEM; +} + +static void qla4xxx_task_cleanup(struct iscsi_task *task) +{ + struct ql4_task_data *task_data; + struct iscsi_session *sess; + struct ddb_entry *ddb_entry; + struct scsi_qla_host *ha; + int hdr_len; + + hdr_len = sizeof(struct iscsi_hdr); + sess = task->conn->session; + ddb_entry = (struct ddb_entry *)sess->dd_data; + ha = ddb_entry->ha; + task_data = (struct ql4_task_data *)task->dd_data; + + if (task->data_count) { + dma_unmap_single(&ha->pdev->dev, task_data->data_dma, + task->data_count, PCI_DMA_TODEVICE); + } + + DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n", + __func__, task->conn->max_recv_dlength, hdr_len)); + + dma_free_coherent(&ha->pdev->dev, task_data->resp_len, + task_data->resp_buffer, task_data->resp_dma); + dma_free_coherent(&ha->pdev->dev, task->data_count + hdr_len, + task_data->req_buffer, task_data->req_dma); + return; +} + +static int qla4xxx_task_xmit(struct iscsi_task *task) +{ + struct scsi_cmnd *sc = task->sc; + struct iscsi_session *sess = task->conn->session; + struct ddb_entry *ddb_entry = (struct ddb_entry *)sess->dd_data; + struct scsi_qla_host *ha = ddb_entry->ha; + + if (!sc) + return qla4xxx_send_passthru0(task); + + ql4_printk(KERN_INFO, ha, "%s: scsi cmd xmit not implemented\n", + __func__); + return -1; +} + static void qla4xxx_scan_start(struct Scsi_Host *shost) { - struct scsi_qla_host *ha = shost_priv(shost); + struct scsi_qla_host *ha = to_qla_host(shost); struct ddb_entry *ddb_entry, *ddbtemp; /* finish setup of sessions that were already setup in firmware */ @@ -866,6 +1398,50 @@ static void qla4xxx_scan_start(struct Scsi_Host *shost) } } +static void qla4xxx_update_session_conn_param(struct scsi_qla_host *ha, + struct ddb_entry *ddb_entry, + struct dev_db_entry *fw_ddb_entry) +{ + struct iscsi_cls_session *cls_sess; + struct iscsi_cls_conn *cls_conn; + struct iscsi_session *sess; + struct iscsi_conn *conn; + + cls_sess = ddb_entry->sess; + sess = cls_sess->dd_data; + + cls_conn = ddb_entry->conn; + conn = cls_conn->dd_data; + + /* Update params */ + conn->max_recv_dlength = 512 * + le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len); + + conn->max_xmit_dlength = 512 * + le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len); + + sess->initial_r2t_en = + (BIT_10 & le16_to_cpu(fw_ddb_entry->iscsi_options)); + + sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t); + + sess->imm_data_en = (BIT_11 & le16_to_cpu(fw_ddb_entry->iscsi_options)); + + sess->first_burst = 512 * + le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len); + + sess->max_burst = 512 * le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len); + + sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait); + + sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain); + + sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp); + + memcpy(sess->initiatorname, ha->name_string, + min(sizeof(ha->name_string), sizeof(sess->initiatorname))); +} + /* * Timer routines */ @@ -890,25 +1466,15 @@ static void qla4xxx_stop_timer(struct scsi_qla_host *ha) } /*** - * qla4xxx_mark_device_missing - mark a device as missing. - * @ha: Pointer to host adapter structure. + * qla4xxx_mark_device_missing - blocks the session + * @cls_session: Pointer to the session to be blocked * @ddb_entry: Pointer to device database entry * * This routine marks a device missing and close connection. **/ -void qla4xxx_mark_device_missing(struct scsi_qla_host *ha, - struct ddb_entry *ddb_entry) +void qla4xxx_mark_device_missing(struct iscsi_cls_session *cls_session) { - if ((atomic_read(&ddb_entry->state) != DDB_STATE_DEAD)) { - atomic_set(&ddb_entry->state, DDB_STATE_MISSING); - DEBUG2(printk("scsi%ld: ddb [%d] marked MISSING\n", - ha->host_no, ddb_entry->fw_ddb_index)); - } else - DEBUG2(printk("scsi%ld: ddb [%d] DEAD\n", ha->host_no, - ddb_entry->fw_ddb_index)) - - iscsi_block_session(ddb_entry->sess); - iscsi_conn_error_event(ddb_entry->conn, ISCSI_ERR_CONN_FAILED); + iscsi_block_session(cls_session); } /** @@ -919,10 +1485,7 @@ void qla4xxx_mark_device_missing(struct scsi_qla_host *ha, **/ void qla4xxx_mark_all_devices_missing(struct scsi_qla_host *ha) { - struct ddb_entry *ddb_entry, *ddbtemp; - list_for_each_entry_safe(ddb_entry, ddbtemp, &ha->ddb_list, list) { - qla4xxx_mark_device_missing(ha, ddb_entry); - } + iscsi_host_for_each_session(ha->host, qla4xxx_mark_device_missing); } static struct srb* qla4xxx_get_new_srb(struct scsi_qla_host *ha, @@ -1013,20 +1576,13 @@ static int qla4xxx_queuecommand_lck(struct scsi_cmnd *cmd, goto qc_fail_command; } - if (atomic_read(&ddb_entry->state) != DDB_STATE_ONLINE) { - if (atomic_read(&ddb_entry->state) == DDB_STATE_DEAD) { - cmd->result = DID_NO_CONNECT << 16; - goto qc_fail_command; - } - return SCSI_MLQUEUE_TARGET_BUSY; - } - if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) || test_bit(DPC_RESET_HA, &ha->dpc_flags) || test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) || test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) || !test_bit(AF_ONLINE, &ha->flags) || + !test_bit(AF_LINK_UP, &ha->flags) || test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) goto qc_host_busy; @@ -1089,6 +1645,9 @@ static void qla4xxx_mem_free(struct scsi_qla_host *ha) ha->srb_mempool = NULL; + if (ha->chap_dma_pool) + dma_pool_destroy(ha->chap_dma_pool); + /* release io space registers */ if (is_qla8022(ha)) { if (ha->nx_pcibase) @@ -1162,10 +1721,18 @@ static int qla4xxx_mem_alloc(struct scsi_qla_host *ha) goto mem_alloc_error_exit; } + ha->chap_dma_pool = dma_pool_create("ql4_chap", &ha->pdev->dev, + CHAP_DMA_BLOCK_SIZE, 8, 0); + + if (ha->chap_dma_pool == NULL) { + ql4_printk(KERN_WARNING, ha, + "%s: chap_dma_pool allocation failed..\n", __func__); + goto mem_alloc_error_exit; + } + return QLA_SUCCESS; mem_alloc_error_exit: - qla4xxx_mem_free(ha); return QLA_ERROR; } @@ -1259,7 +1826,6 @@ void qla4_8xxx_watchdog(struct scsi_qla_host *ha) **/ static void qla4xxx_timer(struct scsi_qla_host *ha) { - struct ddb_entry *ddb_entry, *dtemp; int start_dpc = 0; uint16_t w; @@ -1279,69 +1845,6 @@ static void qla4xxx_timer(struct scsi_qla_host *ha) qla4_8xxx_watchdog(ha); } - /* Search for relogin's to time-out and port down retry. */ - list_for_each_entry_safe(ddb_entry, dtemp, &ha->ddb_list, list) { - /* Count down time between sending relogins */ - if (adapter_up(ha) && - !test_bit(DF_RELOGIN, &ddb_entry->flags) && - atomic_read(&ddb_entry->state) != DDB_STATE_ONLINE) { - if (atomic_read(&ddb_entry->retry_relogin_timer) != - INVALID_ENTRY) { - if (atomic_read(&ddb_entry->retry_relogin_timer) - == 0) { - atomic_set(&ddb_entry-> - retry_relogin_timer, - INVALID_ENTRY); - set_bit(DPC_RELOGIN_DEVICE, - &ha->dpc_flags); - set_bit(DF_RELOGIN, &ddb_entry->flags); - DEBUG2(printk("scsi%ld: %s: ddb [%d]" - " login device\n", - ha->host_no, __func__, - ddb_entry->fw_ddb_index)); - } else - atomic_dec(&ddb_entry-> - retry_relogin_timer); - } - } - - /* Wait for relogin to timeout */ - if (atomic_read(&ddb_entry->relogin_timer) && - (atomic_dec_and_test(&ddb_entry->relogin_timer) != 0)) { - /* - * If the relogin times out and the device is - * still NOT ONLINE then try and relogin again. - */ - if (atomic_read(&ddb_entry->state) != - DDB_STATE_ONLINE && - ddb_entry->fw_ddb_device_state == - DDB_DS_SESSION_FAILED) { - /* Reset retry relogin timer */ - atomic_inc(&ddb_entry->relogin_retry_count); - DEBUG2(printk("scsi%ld: ddb [%d] relogin" - " timed out-retrying" - " relogin (%d)\n", - ha->host_no, - ddb_entry->fw_ddb_index, - atomic_read(&ddb_entry-> - relogin_retry_count)) - ); - start_dpc++; - DEBUG(printk("scsi%ld:%d:%d: ddb [%d] " - "initiate relogin after" - " %d seconds\n", - ha->host_no, ddb_entry->bus, - ddb_entry->target, - ddb_entry->fw_ddb_index, - ddb_entry->default_time2wait + 4) - ); - - atomic_set(&ddb_entry->retry_relogin_timer, - ddb_entry->default_time2wait + 4); - } - } - } - if (!is_qla8022(ha)) { /* Check for heartbeat interval. */ if (ha->firmware_options & FWOPT_HEARTBEAT_ENABLE && @@ -1589,6 +2092,17 @@ void qla4xxx_dead_adapter_cleanup(struct scsi_qla_host *ha) clear_bit(AF_INIT_DONE, &ha->flags); } +static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session) +{ + struct iscsi_session *sess; + struct ddb_entry *ddb_entry; + + sess = cls_session->dd_data; + ddb_entry = sess->dd_data; + ddb_entry->fw_ddb_device_state = DDB_DS_SESSION_FAILED; + iscsi_session_failure(cls_session->dd_data, ISCSI_ERR_CONN_FAILED); +} + /** * qla4xxx_recover_adapter - recovers adapter after a fatal error * @ha: Pointer to host adapter structure. @@ -1601,11 +2115,14 @@ static int qla4xxx_recover_adapter(struct scsi_qla_host *ha) /* Stall incoming I/O until we are done */ scsi_block_requests(ha->host); clear_bit(AF_ONLINE, &ha->flags); + clear_bit(AF_LINK_UP, &ha->flags); DEBUG2(ql4_printk(KERN_INFO, ha, "%s: adapter OFFLINE\n", __func__)); set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); + iscsi_host_for_each_session(ha->host, qla4xxx_fail_session); + if (test_bit(DPC_RESET_HA, &ha->dpc_flags)) reset_chip = 1; @@ -1733,27 +2250,34 @@ recover_ha_init_adapter: return status; } -static void qla4xxx_relogin_all_devices(struct scsi_qla_host *ha) +static void qla4xxx_relogin_devices(struct iscsi_cls_session *cls_session) { - struct ddb_entry *ddb_entry, *dtemp; + struct iscsi_session *sess; + struct ddb_entry *ddb_entry; + struct scsi_qla_host *ha; - list_for_each_entry_safe(ddb_entry, dtemp, &ha->ddb_list, list) { - if ((atomic_read(&ddb_entry->state) == DDB_STATE_MISSING) || - (atomic_read(&ddb_entry->state) == DDB_STATE_DEAD)) { - if (ddb_entry->fw_ddb_device_state == - DDB_DS_SESSION_ACTIVE) { - atomic_set(&ddb_entry->state, DDB_STATE_ONLINE); - ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" - " marked ONLINE\n", ha->host_no, __func__, - ddb_entry->fw_ddb_index); - - iscsi_unblock_session(ddb_entry->sess); - } else - qla4xxx_relogin_device(ha, ddb_entry); + sess = cls_session->dd_data; + ddb_entry = sess->dd_data; + ha = ddb_entry->ha; + if (!qla4xxx_session_online(cls_session)) { + if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) { + ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" + " unblock session\n", ha->host_no, __func__, + ddb_entry->fw_ddb_index); + iscsi_unblock_session(ddb_entry->sess); + } else { + /* Trigger relogin */ + iscsi_session_failure(cls_session->dd_data, + ISCSI_ERR_CONN_FAILED); } } } +static void qla4xxx_relogin_all_devices(struct scsi_qla_host *ha) +{ + iscsi_host_for_each_session(ha->host, qla4xxx_relogin_devices); +} + void qla4xxx_wake_dpc(struct scsi_qla_host *ha) { if (ha->dpc_thread && @@ -1778,7 +2302,6 @@ static void qla4xxx_do_dpc(struct work_struct *work) { struct scsi_qla_host *ha = container_of(work, struct scsi_qla_host, dpc_work); - struct ddb_entry *ddb_entry, *dtemp; int status = QLA_ERROR; DEBUG2(printk("scsi%ld: %s: DPC handler waking up." @@ -1822,8 +2345,9 @@ static void qla4xxx_do_dpc(struct work_struct *work) goto dpc_post_reset_ha; } if (test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) || - test_bit(DPC_RESET_HA, &ha->dpc_flags)) + test_bit(DPC_RESET_HA, &ha->dpc_flags)) { qla4xxx_recover_adapter(ha); + } if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { uint8_t wait_time = RESET_INTR_TOV; @@ -1875,30 +2399,6 @@ dpc_post_reset_ha: } } - /* ---- relogin device? --- */ - if (adapter_up(ha) && - test_and_clear_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags)) { - list_for_each_entry_safe(ddb_entry, dtemp, - &ha->ddb_list, list) { - if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags) && - atomic_read(&ddb_entry->state) != DDB_STATE_ONLINE) - qla4xxx_relogin_device(ha, ddb_entry); - - /* - * If mbx cmd times out there is no point - * in continuing further. - * With large no of targets this can hang - * the system. - */ - if (test_bit(DPC_RESET_HA, &ha->dpc_flags)) { - printk(KERN_WARNING "scsi%ld: %s: " - "need to reset hba\n", - ha->host_no, __func__); - break; - } - } - } - do_dpc_exit: clear_bit(AF_DPC_SCHEDULED, &ha->flags); } @@ -1923,6 +2423,10 @@ static void qla4xxx_free_adapter(struct scsi_qla_host *ha) if (ha->dpc_thread) destroy_workqueue(ha->dpc_thread); + /* Kill the kernel thread for this host */ + if (ha->task_wq) + destroy_workqueue(ha->task_wq); + /* Put firmware in known state */ ha->isp_ops->reset_firmware(ha); @@ -2165,7 +2669,7 @@ static int __devinit qla4xxx_probe_adapter(struct pci_dev *pdev, if (pci_enable_device(pdev)) return -1; - host = scsi_host_alloc(&qla4xxx_driver_template, sizeof(*ha)); + host = iscsi_host_alloc(&qla4xxx_driver_template, sizeof(*ha), 0); if (host == NULL) { printk(KERN_WARNING "qla4xxx: Couldn't allocate host from scsi layer!\n"); @@ -2173,7 +2677,7 @@ static int __devinit qla4xxx_probe_adapter(struct pci_dev *pdev, } /* Clear our data area */ - ha = (struct scsi_qla_host *) host->hostdata; + ha = to_qla_host(host); memset(ha, 0, sizeof(*ha)); /* Save the information from PCI BIOS. */ @@ -2233,9 +2737,32 @@ static int __devinit qla4xxx_probe_adapter(struct pci_dev *pdev, goto probe_failed; } + host->cmd_per_lun = 3; + host->max_channel = 0; + host->max_lun = MAX_LUNS - 1; + host->max_id = MAX_TARGETS; + host->max_cmd_len = IOCB_MAX_CDB_LEN; + host->can_queue = MAX_SRBS ; + host->transportt = qla4xxx_scsi_transport; + + ret = scsi_init_shared_tag_map(host, MAX_SRBS); + if (ret) { + ql4_printk(KERN_WARNING, ha, + "%s: scsi_init_shared_tag_map failed\n", __func__); + goto probe_failed; + } + + pci_set_drvdata(pdev, ha); + + ret = scsi_add_host(host, &pdev->dev); + if (ret) + goto probe_failed; + if (is_qla8022(ha)) (void) qla4_8xxx_get_flash_info(ha); + ha->task_wq = alloc_workqueue("qla4xxx_task_wq", WQ_MEM_RECLAIM, 1); + /* * Initialize the Host adapter request/response queues and * firmware @@ -2277,24 +2804,9 @@ static int __devinit qla4xxx_probe_adapter(struct pci_dev *pdev, qla4_8xxx_idc_unlock(ha); } ret = -ENODEV; - goto probe_failed; + goto remove_host; } - host->cmd_per_lun = 3; - host->max_channel = 0; - host->max_lun = MAX_LUNS - 1; - host->max_id = MAX_TARGETS; - host->max_cmd_len = IOCB_MAX_CDB_LEN; - host->can_queue = MAX_SRBS ; - host->transportt = qla4xxx_scsi_transport; - - ret = scsi_init_shared_tag_map(host, MAX_SRBS); - if (ret) { - ql4_printk(KERN_WARNING, ha, - "scsi_init_shared_tag_map failed\n"); - goto probe_failed; - } - /* Startup the kernel thread for this host adapter. */ DEBUG2(printk("scsi: %s: Starting kernel thread for " "qla4xxx_dpc\n", __func__)); @@ -2303,7 +2815,7 @@ static int __devinit qla4xxx_probe_adapter(struct pci_dev *pdev, if (!ha->dpc_thread) { ql4_printk(KERN_WARNING, ha, "Unable to start DPC thread!\n"); ret = -ENODEV; - goto probe_failed; + goto remove_host; } INIT_WORK(&ha->dpc_work, qla4xxx_do_dpc); @@ -2317,7 +2829,7 @@ static int __devinit qla4xxx_probe_adapter(struct pci_dev *pdev, if (ret) { ql4_printk(KERN_WARNING, ha, "Failed to reserve " "interrupt %d already in use.\n", pdev->irq); - goto probe_failed; + goto remove_host; } } @@ -2329,11 +2841,6 @@ static int __devinit qla4xxx_probe_adapter(struct pci_dev *pdev, set_bit(AF_INIT_DONE, &ha->flags); - pci_set_drvdata(pdev, ha); - - ret = scsi_add_host(host, &pdev->dev); - if (ret) - goto probe_failed; printk(KERN_INFO " QLogic iSCSI HBA Driver version: %s\n" @@ -2341,11 +2848,13 @@ static int __devinit qla4xxx_probe_adapter(struct pci_dev *pdev, qla4xxx_version_str, ha->pdev->device, pci_name(ha->pdev), ha->host_no, ha->firmware_version[0], ha->firmware_version[1], ha->patch_number, ha->build_number); - scsi_scan_host(host); qla4xxx_create_iface(ha); return 0; +remove_host: + scsi_remove_host(ha->host); + probe_failed: qla4xxx_free_adapter(ha); @@ -2453,10 +2962,15 @@ static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha) static int qla4xxx_slave_alloc(struct scsi_device *sdev) { - struct iscsi_cls_session *sess = starget_to_session(sdev->sdev_target); - struct ddb_entry *ddb = sess->dd_data; + struct iscsi_cls_session *cls_sess; + struct iscsi_session *sess; + struct ddb_entry *ddb; int queue_depth = QL4_DEF_QDEPTH; + cls_sess = starget_to_session(sdev->sdev_target); + sess = cls_sess->dd_data; + ddb = sess->dd_data; + sdev->hostdata = ddb; sdev->tagged_supported = 1; @@ -2795,7 +3309,7 @@ static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd) int return_status = FAILED; struct scsi_qla_host *ha; - ha = (struct scsi_qla_host *) cmd->device->host->hostdata; + ha = to_qla_host(cmd->device->host); if (ql4xdontresethba) { DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n", @@ -2831,6 +3345,18 @@ static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd) return return_status; } +int qla4xxx_session_online(struct iscsi_cls_session *session) +{ + unsigned long flags; + int ret = 0; + + spin_lock_irqsave(&session->lock, flags); + if (session->state == ISCSI_SESSION_LOGGED_IN) + ret = 1; + spin_unlock_irqrestore(&session->lock, flags); + return ret; +} + /* PCI AER driver recovers from all correctable errors w/o * driver intervention. For uncorrectable errors PCI AER * driver calls the following device driver's callbacks @@ -2907,7 +3433,8 @@ static uint32_t qla4_8xxx_error_recovery(struct scsi_qla_host *ha) if (test_bit(AF_ONLINE, &ha->flags)) { clear_bit(AF_ONLINE, &ha->flags); - qla4xxx_mark_all_devices_missing(ha); + clear_bit(AF_LINK_UP, &ha->flags); + iscsi_host_for_each_session(ha->host, qla4xxx_fail_session); qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); } -- 1.7.3.2 -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
