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) {
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];
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.
return status;
}
-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];
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);
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];
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;
+ uint32_t options = 0;
int ret_val = QLA_SUCCESS;
goto exit_send_tgts_no_free;
}
- ret_val = qla4xxx_get_default_ddb(ha, fw_ddb_entry_dma);
+ ret_val = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma);
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;
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),
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)
{
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);
+ strncpy(chap_table->secret, password, MAX_CHAP_SECRET_LEN);
+ strncpy(chap_table->name, username, MAX_CHAP_NAME_LEN);
+ 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_conn_close_sess_logout(struct scsi_qla_host *ha,
uint16_t fw_ddb_index,
uint16_t connection_id,
}
return status;
}
+
+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 / BYTE_UNITS));
+
+ 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 / BYTE_UNITS));
+
+ if (sess->max_burst)
+ fw_ddb_entry->iscsi_max_burst_len =
+ __constant_cpu_to_le16((sess->max_burst / BYTE_UNITS));
+
+ 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;
+}
+
+int qla4xxx_get_mgmt_data(struct scsi_qla_host *ha, uint16_t fw_ddb_index,
+ uint16_t stats_size, dma_addr_t stats_dma)
+{
+ int status = QLA_SUCCESS;
+ uint32_t mbox_cmd[MBOX_REG_COUNT];
+ uint32_t mbox_sts[MBOX_REG_COUNT];
+
+ memset(mbox_cmd, 0, sizeof(mbox_cmd[0]) * MBOX_REG_COUNT);
+ memset(mbox_sts, 0, sizeof(mbox_sts[0]) * MBOX_REG_COUNT);
+ mbox_cmd[0] = MBOX_CMD_GET_MANAGEMENT_DATA;
+ mbox_cmd[1] = fw_ddb_index;
+ mbox_cmd[2] = LSDW(stats_dma);
+ mbox_cmd[3] = MSDW(stats_dma);
+ mbox_cmd[4] = stats_size;
+
+ status = qla4xxx_mailbox_command(ha, 5, 1, &mbox_cmd[0], &mbox_sts[0]);
+ if (status != QLA_SUCCESS) {
+ DEBUG2(ql4_printk(KERN_WARNING, ha,
+ "%s: MBOX_CMD_GET_MANAGEMENT_DATA "
+ "failed w/ status %04X\n", __func__,
+ mbox_sts[0]));
+ }
+ return status;
+}
"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
*/
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_iface_set_param(struct Scsi_Host *shost, char *data,
static int qla4xxx_get_iface_param(struct iscsi_iface *iface,
enum iscsi_param_type param_type,
int 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 void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn,
+ struct iscsi_stats *stats);
/*
* SCSI host template entry points
*/
.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,
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,
.tgt_dscvr = qla4xxx_tgt_dscvr,
.attr_is_visible = ql4_attr_is_visible,
+ .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_ep_param = qla4xxx_get_ep_param,
+ .ep_connect = qla4xxx_ep_connect,
+ .ep_poll = qla4xxx_ep_poll,
+ .ep_disconnect = qla4xxx_ep_disconnect,
+ .get_stats = qla4xxx_conn_get_stats,
+ .send_pdu = iscsi_conn_send_pdu,
+ .xmit_task = qla4xxx_task_xmit,
+ .cleanup_task = qla4xxx_task_cleanup,
+ .alloc_pdu = qla4xxx_alloc_pdu,
+
.get_host_param = qla4xxx_host_get_param,
.set_iface_param = qla4xxx_iface_set_param,
- .session_recovery_timedout = qla4xxx_recovery_timedout,
.get_iface_param = qla4xxx_get_iface_param,
.bsg_request = qla4xxx_bsg_request,
};
case ISCSI_PARAM_TARGET_NAME:
case ISCSI_PARAM_TPGT:
case ISCSI_PARAM_TARGET_ALIAS:
+ case ISCSI_PARAM_MAX_BURST:
+ case ISCSI_PARAM_MAX_R2T:
+ case ISCSI_PARAM_FIRST_BURST:
+ case ISCSI_PARAM_MAX_RECV_DLENGTH:
+ case ISCSI_PARAM_MAX_XMIT_DLENGTH:
return S_IRUGO;
default:
return 0;
return len;
}
-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)
{
- struct iscsi_cls_session *session;
- struct ddb_entry *ddb_entry;
+ int ret;
+ struct iscsi_endpoint *ep;
+ struct qla_endpoint *qla_ep;
+ struct scsi_qla_host *ha;
+ struct sockaddr_in *addr;
+ struct sockaddr_in6 *addr6;
- session = starget_to_session(scsi_target(sc->device));
- ddb_entry = session->dd_data;
+ 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);
+ }
- /* 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;
+ ha = iscsi_host_priv(shost);
+
+ ep = iscsi_create_endpoint(sizeof(struct qla_endpoint));
+ if (!ep) {
+ ret = -ENOMEM;
+ return ERR_PTR(ret);
+ }
+
+ qla_ep = 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;
}
-static void qla4xxx_recovery_timedout(struct iscsi_cls_session *session)
+static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms)
{
- struct ddb_entry *ddb_entry = session->dd_data;
- struct scsi_qla_host *ha = ddb_entry->ha;
+ struct qla_endpoint *qla_ep;
+ struct scsi_qla_host *ha;
+ int ret = 0;
- if (atomic_read(&ddb_entry->state) != DDB_STATE_ONLINE) {
- atomic_set(&ddb_entry->state, DDB_STATE_DEAD);
+ DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
+ qla_ep = ep->dd_data;
+ ha = to_qla_host(qla_ep->host);
+
+ if (adapter_up(ha))
+ ret = 1;
+
+ return ret;
+}
+
+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;
- 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));
+ 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 void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn,
+ struct iscsi_stats *stats)
+{
+ struct iscsi_session *sess;
+ struct iscsi_cls_session *cls_sess;
+ struct ddb_entry *ddb_entry;
+ struct scsi_qla_host *ha;
+ struct ql_iscsi_stats *ql_iscsi_stats;
+ int stats_size;
+ int ret;
+ dma_addr_t iscsi_stats_dma;
+
+ DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
+
+ cls_sess = iscsi_conn_to_session(cls_conn);
+ sess = cls_sess->dd_data;
+ ddb_entry = sess->dd_data;
+ ha = ddb_entry->ha;
+
+ stats_size = PAGE_ALIGN(sizeof(struct ql_iscsi_stats));
+ /* Allocate memory */
+ ql_iscsi_stats = dma_alloc_coherent(&ha->pdev->dev, stats_size,
+ &iscsi_stats_dma, GFP_KERNEL);
+ if (!ql_iscsi_stats) {
+ ql4_printk(KERN_ERR, ha,
+ "Unable to allocate memory for iscsi stats\n");
+ goto exit_get_stats;
+ }
+
+ ret = qla4xxx_get_mgmt_data(ha, ddb_entry->fw_ddb_index, stats_size,
+ iscsi_stats_dma);
+ if (ret != QLA_SUCCESS) {
+ ql4_printk(KERN_ERR, ha,
+ "Unable to retreive iscsi stats\n");
+ goto free_stats;
+ }
+
+ /* octets */
+ stats->txdata_octets = le64_to_cpu(ql_iscsi_stats->tx_data_octets);
+ stats->rxdata_octets = le64_to_cpu(ql_iscsi_stats->rx_data_octets);
+ /* xmit pdus */
+ stats->noptx_pdus = le32_to_cpu(ql_iscsi_stats->tx_nopout_pdus);
+ stats->scsicmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_cmd_pdus);
+ stats->tmfcmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_tmf_cmd_pdus);
+ stats->login_pdus = le32_to_cpu(ql_iscsi_stats->tx_login_cmd_pdus);
+ stats->text_pdus = le32_to_cpu(ql_iscsi_stats->tx_text_cmd_pdus);
+ stats->dataout_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_write_pdus);
+ stats->logout_pdus = le32_to_cpu(ql_iscsi_stats->tx_logout_cmd_pdus);
+ stats->snack_pdus = le32_to_cpu(ql_iscsi_stats->tx_snack_req_pdus);
+ /* recv pdus */
+ stats->noprx_pdus = le32_to_cpu(ql_iscsi_stats->rx_nopin_pdus);
+ stats->scsirsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_resp_pdus);
+ stats->tmfrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_tmf_resp_pdus);
+ stats->textrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_text_resp_pdus);
+ stats->datain_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_read_pdus);
+ stats->logoutrsp_pdus =
+ le32_to_cpu(ql_iscsi_stats->rx_logout_resp_pdus);
+ stats->r2t_pdus = le32_to_cpu(ql_iscsi_stats->rx_r2t_pdus);
+ stats->async_pdus = le32_to_cpu(ql_iscsi_stats->rx_async_pdus);
+ stats->rjt_pdus = le32_to_cpu(ql_iscsi_stats->rx_reject_pdus);
+
+free_stats:
+ dma_free_coherent(&ha->pdev->dev, stats_size, ql_iscsi_stats,
+ iscsi_stats_dma);
+exit_get_stats:
+ return;
+}
+
+static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc)
+{
+ struct iscsi_cls_session *session;
+ 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));
+ sess = session->dd_data;
+
+ spin_lock_irqsave(&session->lock, flags);
+ if (session->state == ISCSI_SESSION_FAILED)
+ ret = BLK_EH_RESET_TIMER;
+ spin_unlock_irqrestore(&session->lock, flags);
+
+ return ret;
+}
+
static int qla4xxx_host_get_param(struct Scsi_Host *shost,
enum iscsi_host_param param, char *buf)
{
return rval;
}
-static int qla4xxx_sess_get_param(struct iscsi_cls_session *sess,
+static int qla4xxx_conn_get_param(struct iscsi_cls_conn *cls_conn,
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,
- 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;
+ 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);
- break;
case ISCSI_PARAM_CONN_ADDRESS:
- /* TODO: what are the ipv6 bits */
- len = sprintf(buf, "%pI4\n", &ddb_entry->ip_addr);
- break;
+ return iscsi_conn_get_addr_param((struct sockaddr_storage *)
+ dst_addr, param, buf);
default:
- return -ENOSYS;
+ return iscsi_conn_get_param(cls_conn, param, buf);
}
return len;
+
}
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:
return ret;
}
+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 = 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 = cls_sess->dd_data;
+ 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;
+ 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 = 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);
+}
+
void qla4xxx_destroy_sess(struct ddb_entry *ddb_entry)
{
if (!ddb_entry->sess)
iscsi_free_session(ddb_entry->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 = cls_sess->dd_data;
+ 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 exit_set_param;
+
+ ql4_printk(KERN_ERR, ha, "%s: Failed set param for index[%d]\n",
+ __func__, ddb_entry->fw_ddb_index);
+ goto exit_conn_start;
+ }
+
+ 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;
+ }
+
+ ddb_entry->fw_ddb_device_state = DDB_DS_LOGIN_IN_PROCESS;
+
+exit_set_param:
+ iscsi_conn_start(cls_conn);
+ ret = 0;
+
+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;
+
+ 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
+ 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);
+
+ DEBUG3(printk(KERN_INFO "Status returned\n"));
+ DEBUG3(qla4xxx_dump_buffer(sts, 64));
+ DEBUG3(printk(KERN_INFO "Response buffer"));
+ DEBUG3(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 = sess->dd_data;
+ ha = ddb_entry->ha;
+ 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 = sess->dd_data;
+ ha = ddb_entry->ha;
+ 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 = 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 -ENOSYS;
+}
+
+void qla4xxx_update_session_conn_param(struct scsi_qla_host *ha,
+ struct ddb_entry *ddb_entry)
+{
+ struct iscsi_cls_session *cls_sess;
+ struct iscsi_cls_conn *cls_conn;
+ struct iscsi_session *sess;
+ struct iscsi_conn *conn;
+ uint32_t ddb_state;
+ dma_addr_t fw_ddb_entry_dma;
+ struct dev_db_entry *fw_ddb_entry;
+
+ 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;
+ }
+
+ if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry,
+ fw_ddb_entry_dma, NULL, NULL, &ddb_state,
+ NULL, NULL, NULL) == QLA_ERROR) {
+ DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed "
+ "get_ddb_entry for fw_ddb_index %d\n",
+ ha->host_no, __func__,
+ ddb_entry->fw_ddb_index));
+ return;
+ }
+
+ 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 = BYTE_UNITS *
+ le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len);
+
+ conn->max_xmit_dlength = BYTE_UNITS *
+ 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 = BYTE_UNITS *
+ le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len);
+
+ sess->max_burst = BYTE_UNITS *
+ 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)));
+}
+
int qla4xxx_add_sess(struct ddb_entry *ddb_entry)
{
int err;
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 */
}
/***
- * 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);
}
/**
**/
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,
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;
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)
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:
**/
static void qla4xxx_timer(struct scsi_qla_host *ha)
{
- struct ddb_entry *ddb_entry, *dtemp;
int start_dpc = 0;
uint16_t w;
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 &&
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.
/* 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;
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 (!iscsi_is_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)
{
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."
qla4xxx_relogin_all_devices(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;
- }
- }
- }
-
}
/**
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);
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");
}
/* 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. */
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);
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__));
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);
+ sprintf(buf, "qla4xxx_%lu_task", ha->host_no);
+ ha->task_wq = alloc_workqueue(buf, WQ_MEM_RECLAIM, 1);
+ if (!ha->task_wq) {
+ ql4_printk(KERN_WARNING, ha, "Unable to start task thread!\n");
+ ret = -ENODEV;
+ goto remove_host;
+ }
+
/* For ISP-82XX, request_irqs is called in qla4_8xxx_load_risc
* (which is called indirectly by qla4xxx_initialize_adapter),
* so that irqs will be registered after crbinit but before
if (ret) {
ql4_printk(KERN_WARNING, ha, "Failed to reserve "
"interrupt %d already in use.\n", pdev->irq);
- goto probe_failed;
+ goto remove_host;
}
}
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"
" QLogic ISP%04x @ %s, host#=%ld, fw=%02d.%02d.%02d.%02d\n",
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_ifaces(ha);
return 0;
+remove_host:
+ scsi_remove_host(ha->host);
+
probe_failed:
qla4xxx_free_adapter(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;
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",
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);
}
projects / linux-beck.git / commitdiff