diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/scsi/qla4xxx/ql4_def.h | 3 | ||||
| -rw-r--r-- | drivers/scsi/qla4xxx/ql4_os.c | 193 |
2 files changed, 195 insertions, 1 deletions
diff --git a/drivers/scsi/qla4xxx/ql4_def.h b/drivers/scsi/qla4xxx/ql4_def.h index 776714d2d70d..0b2487631d52 100644 --- a/drivers/scsi/qla4xxx/ql4_def.h +++ b/drivers/scsi/qla4xxx/ql4_def.h @@ -272,7 +272,7 @@ struct ddb_entry { * retried */ uint32_t default_time2wait; /* Default Min time between * relogins (+aens) */ - + uint16_t chap_tbl_idx; }; struct qla_ddb_index { @@ -685,6 +685,7 @@ struct scsi_qla_host { struct dma_pool *chap_dma_pool; uint8_t *chap_list; /* CHAP table cache */ struct mutex chap_sem; + #define CHAP_DMA_BLOCK_SIZE 512 struct workqueue_struct *task_wq; unsigned long ddb_idx_map[MAX_DDB_ENTRIES / BITS_PER_LONG]; diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c index 877c0e220ac9..c6cfe324ab2f 100644 --- a/drivers/scsi/qla4xxx/ql4_os.c +++ b/drivers/scsi/qla4xxx/ql4_os.c @@ -121,6 +121,9 @@ static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn, static int qla4xxx_send_ping(struct Scsi_Host *shost, uint32_t iface_num, uint32_t iface_type, uint32_t payload_size, uint32_t pid, struct sockaddr *dst_addr); +static int qla4xxx_get_chap_list(struct Scsi_Host *shost, uint16_t chap_tbl_idx, + uint32_t *num_entries, char *buf); +static int qla4xxx_delete_chap(struct Scsi_Host *shost, uint16_t chap_tbl_idx); /* * SCSI host template entry points @@ -199,6 +202,8 @@ static struct iscsi_transport qla4xxx_iscsi_transport = { .get_iface_param = qla4xxx_get_iface_param, .bsg_request = qla4xxx_bsg_request, .send_ping = qla4xxx_send_ping, + .get_chap = qla4xxx_get_chap_list, + .delete_chap = qla4xxx_delete_chap, }; static struct scsi_transport_template *qla4xxx_scsi_transport; @@ -342,6 +347,189 @@ static umode_t ql4_attr_is_visible(int param_type, int param) return 0; } +static int qla4xxx_get_chap_list(struct Scsi_Host *shost, uint16_t chap_tbl_idx, + uint32_t *num_entries, char *buf) +{ + struct scsi_qla_host *ha = to_qla_host(shost); + struct ql4_chap_table *chap_table; + struct iscsi_chap_rec *chap_rec; + int max_chap_entries = 0; + int valid_chap_entries = 0; + int ret = 0, i; + + if (is_qla8022(ha)) + max_chap_entries = (ha->hw.flt_chap_size / 2) / + sizeof(struct ql4_chap_table); + else + max_chap_entries = MAX_CHAP_ENTRIES_40XX; + + ql4_printk(KERN_INFO, ha, "%s: num_entries = %d, CHAP idx = %d\n", + __func__, *num_entries, chap_tbl_idx); + + if (!buf) { + ret = -ENOMEM; + goto exit_get_chap_list; + } + + chap_rec = (struct iscsi_chap_rec *) buf; + mutex_lock(&ha->chap_sem); + for (i = chap_tbl_idx; i < max_chap_entries; i++) { + chap_table = (struct ql4_chap_table *)ha->chap_list + i; + if (chap_table->cookie != + __constant_cpu_to_le16(CHAP_VALID_COOKIE)) + continue; + + chap_rec->chap_tbl_idx = i; + strncpy(chap_rec->username, chap_table->name, + ISCSI_CHAP_AUTH_NAME_MAX_LEN); + strncpy(chap_rec->password, chap_table->secret, + QL4_CHAP_MAX_SECRET_LEN); + chap_rec->password_length = chap_table->secret_len; + + if (chap_table->flags & BIT_7) /* local */ + chap_rec->chap_type = CHAP_TYPE_OUT; + + if (chap_table->flags & BIT_6) /* peer */ + chap_rec->chap_type = CHAP_TYPE_IN; + + chap_rec++; + + valid_chap_entries++; + if (valid_chap_entries == *num_entries) + break; + else + continue; + } + mutex_unlock(&ha->chap_sem); + +exit_get_chap_list: + ql4_printk(KERN_INFO, ha, "%s: Valid CHAP Entries = %d\n", + __func__, valid_chap_entries); + *num_entries = valid_chap_entries; + return ret; +} + +static int __qla4xxx_is_chap_active(struct device *dev, void *data) +{ + int ret = 0; + uint16_t *chap_tbl_idx = (uint16_t *) data; + struct iscsi_cls_session *cls_session; + struct iscsi_session *sess; + struct ddb_entry *ddb_entry; + + if (!iscsi_is_session_dev(dev)) + goto exit_is_chap_active; + + cls_session = iscsi_dev_to_session(dev); + sess = cls_session->dd_data; + ddb_entry = sess->dd_data; + + if (iscsi_session_chkready(cls_session)) + goto exit_is_chap_active; + + if (ddb_entry->chap_tbl_idx == *chap_tbl_idx) + ret = 1; + +exit_is_chap_active: + return ret; +} + +static int qla4xxx_is_chap_active(struct Scsi_Host *shost, + uint16_t chap_tbl_idx) +{ + int ret = 0; + + ret = device_for_each_child(&shost->shost_gendev, &chap_tbl_idx, + __qla4xxx_is_chap_active); + + return ret; +} + +static int qla4xxx_delete_chap(struct Scsi_Host *shost, uint16_t chap_tbl_idx) +{ + struct scsi_qla_host *ha = to_qla_host(shost); + struct ql4_chap_table *chap_table; + dma_addr_t chap_dma; + int max_chap_entries = 0; + uint32_t offset = 0; + uint32_t chap_size; + int ret = 0; + + chap_table = dma_pool_alloc(ha->chap_dma_pool, GFP_KERNEL, &chap_dma); + if (chap_table == NULL) + return -ENOMEM; + + memset(chap_table, 0, sizeof(struct ql4_chap_table)); + + if (is_qla8022(ha)) + max_chap_entries = (ha->hw.flt_chap_size / 2) / + sizeof(struct ql4_chap_table); + else + max_chap_entries = MAX_CHAP_ENTRIES_40XX; + + if (chap_tbl_idx > max_chap_entries) { + ret = -EINVAL; + goto exit_delete_chap; + } + + /* Check if chap index is in use. + * If chap is in use don't delet chap entry */ + ret = qla4xxx_is_chap_active(shost, chap_tbl_idx); + if (ret) { + ql4_printk(KERN_INFO, ha, "CHAP entry %d is in use, cannot " + "delete from flash\n", chap_tbl_idx); + ret = -EBUSY; + goto exit_delete_chap; + } + + chap_size = sizeof(struct ql4_chap_table); + if (is_qla40XX(ha)) + offset = FLASH_CHAP_OFFSET | (chap_tbl_idx * chap_size); + else { + offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2); + /* flt_chap_size is CHAP table size for both ports + * so divide it by 2 to calculate the offset for second port + */ + if (ha->port_num == 1) + offset += (ha->hw.flt_chap_size / 2); + offset += (chap_tbl_idx * chap_size); + } + + ret = qla4xxx_get_flash(ha, chap_dma, offset, chap_size); + if (ret != QLA_SUCCESS) { + ret = -EINVAL; + goto exit_delete_chap; + } + + DEBUG2(ql4_printk(KERN_INFO, ha, "Chap Cookie: x%x\n", + __le16_to_cpu(chap_table->cookie))); + + if (__le16_to_cpu(chap_table->cookie) != CHAP_VALID_COOKIE) { + ql4_printk(KERN_ERR, ha, "No valid chap entry found\n"); + goto exit_delete_chap; + } + + chap_table->cookie = __constant_cpu_to_le16(0xFFFF); + + offset = FLASH_CHAP_OFFSET | + (chap_tbl_idx * sizeof(struct ql4_chap_table)); + ret = qla4xxx_set_flash(ha, chap_dma, offset, chap_size, + FLASH_OPT_RMW_COMMIT); + if (ret == QLA_SUCCESS && ha->chap_list) { + mutex_lock(&ha->chap_sem); + /* Update ha chap_list cache */ + memcpy((struct ql4_chap_table *)ha->chap_list + chap_tbl_idx, + chap_table, sizeof(struct ql4_chap_table)); + mutex_unlock(&ha->chap_sem); + } + if (ret != QLA_SUCCESS) + ret = -EINVAL; + +exit_delete_chap: + dma_pool_free(ha->chap_dma_pool, chap_table, chap_dma); + return ret; +} + static int qla4xxx_get_iface_param(struct iscsi_iface *iface, enum iscsi_param_type param_type, int param, char *buf) @@ -1638,13 +1826,17 @@ static void qla4xxx_copy_fwddb_param(struct scsi_qla_host *ha, { int buflen = 0; struct iscsi_session *sess; + struct ddb_entry *ddb_entry; struct iscsi_conn *conn; char ip_addr[DDB_IPADDR_LEN]; uint16_t options = 0; sess = cls_sess->dd_data; + ddb_entry = sess->dd_data; conn = cls_conn->dd_data; + ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx); + conn->max_recv_dlength = BYTE_UNITS * le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len); @@ -1772,6 +1964,7 @@ void qla4xxx_update_session_conn_param(struct scsi_qla_host *ha, le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait); /* Update params */ + ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx); conn->max_recv_dlength = BYTE_UNITS * le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len); |
