1 files changed, 360 insertions, 0 deletions

diff --git a/drivers/scsi/qla4xxx/ql4_bsg.c b/drivers/scsi/qla4xxx/ql4_bsg.c
index cf8fdf1d1257..04a0027dbca0 100644
--- a/drivers/scsi/qla4xxx/ql4_bsg.c
+++ b/drivers/scsi/qla4xxx/ql4_bsg.c
@@ -446,6 +446,363 @@ leave:
         return rval;
 }
 
+static void ql4xxx_execute_diag_cmd(struct bsg_job *bsg_job)
+{
+        struct Scsi_Host *host = iscsi_job_to_shost(bsg_job);
+        struct scsi_qla_host *ha = to_qla_host(host);
+        struct iscsi_bsg_request *bsg_req = bsg_job->request;
+        struct iscsi_bsg_reply *bsg_reply = bsg_job->reply;
+        uint8_t *rsp_ptr = NULL;
+        uint32_t mbox_cmd[MBOX_REG_COUNT];
+        uint32_t mbox_sts[MBOX_REG_COUNT];
+        int status = QLA_ERROR;
+
+        DEBUG2(ql4_printk(KERN_INFO, ha, "%s: in\n", __func__));
+
+        if (test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
+                ql4_printk(KERN_INFO, ha, "%s: Adapter reset in progress. Invalid Request\n",
+                           __func__);
+                bsg_reply->result = DID_ERROR << 16;
+                goto exit_diag_mem_test;
+        }
+
+        bsg_reply->reply_payload_rcv_len = 0;
+        memcpy(mbox_cmd, &bsg_req->rqst_data.h_vendor.vendor_cmd[1],
+               sizeof(uint32_t) * MBOX_REG_COUNT);
+
+        DEBUG2(ql4_printk(KERN_INFO, ha,
+                          "%s: mbox_cmd: %08X %08X %08X %08X %08X %08X %08X %08X\n",
+                          __func__, mbox_cmd[0], mbox_cmd[1], mbox_cmd[2],
+                          mbox_cmd[3], mbox_cmd[4], mbox_cmd[5], mbox_cmd[6],
+                          mbox_cmd[7]));
+
+        status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 8, &mbox_cmd[0],
+                                         &mbox_sts[0]);
+
+        DEBUG2(ql4_printk(KERN_INFO, ha,
+                          "%s: mbox_sts: %08X %08X %08X %08X %08X %08X %08X %08X\n",
+                          __func__, mbox_sts[0], mbox_sts[1], mbox_sts[2],
+                          mbox_sts[3], mbox_sts[4], mbox_sts[5], mbox_sts[6],
+                          mbox_sts[7]));
+
+        if (status == QLA_SUCCESS)
+                bsg_reply->result = DID_OK << 16;
+        else
+                bsg_reply->result = DID_ERROR << 16;
+
+        /* Send mbox_sts to application */
+        bsg_job->reply_len = sizeof(struct iscsi_bsg_reply) + sizeof(mbox_sts);
+        rsp_ptr = ((uint8_t *)bsg_reply) + sizeof(struct iscsi_bsg_reply);
+        memcpy(rsp_ptr, mbox_sts, sizeof(mbox_sts));
+
+exit_diag_mem_test:
+        DEBUG2(ql4_printk(KERN_INFO, ha,
+                          "%s: bsg_reply->result = x%x, status = %s\n",
+                          __func__, bsg_reply->result, STATUS(status)));
+
+        bsg_job_done(bsg_job, bsg_reply->result,
+                     bsg_reply->reply_payload_rcv_len);
+}
+
+static int qla4_83xx_wait_for_loopback_config_comp(struct scsi_qla_host *ha,
+                                                   int wait_for_link)
+{
+        int status = QLA_SUCCESS;
+
+        if (!wait_for_completion_timeout(&ha->idc_comp, (IDC_COMP_TOV * HZ))) {
+                ql4_printk(KERN_INFO, ha, "%s: IDC Complete notification not received, Waiting for another %d timeout",
+                           __func__, ha->idc_extend_tmo);
+                if (ha->idc_extend_tmo) {
+                        if (!wait_for_completion_timeout(&ha->idc_comp,
+                                                (ha->idc_extend_tmo * HZ))) {
+                                ha->notify_idc_comp = 0;
+                                ha->notify_link_up_comp = 0;
+                                ql4_printk(KERN_WARNING, ha, "%s: IDC Complete notification not received",
+                                           __func__);
+                                status = QLA_ERROR;
+                                goto exit_wait;
+                        } else {
+                                DEBUG2(ql4_printk(KERN_INFO, ha,
+                                                  "%s: IDC Complete notification received\n",
+                                                  __func__));
+                        }
+                }
+        } else {
+                DEBUG2(ql4_printk(KERN_INFO, ha,
+                                  "%s: IDC Complete notification received\n",
+                                  __func__));
+        }
+        ha->notify_idc_comp = 0;
+
+        if (wait_for_link) {
+                if (!wait_for_completion_timeout(&ha->link_up_comp,
+                                                 (IDC_COMP_TOV * HZ))) {
+                        ha->notify_link_up_comp = 0;
+                        ql4_printk(KERN_WARNING, ha, "%s: LINK UP notification not received",
+                                   __func__);
+                        status = QLA_ERROR;
+                        goto exit_wait;
+                } else {
+                        DEBUG2(ql4_printk(KERN_INFO, ha,
+                                          "%s: LINK UP notification received\n",
+                                          __func__));
+                }
+                ha->notify_link_up_comp = 0;
+        }
+
+exit_wait:
+        return status;
+}
+
+static int qla4_83xx_pre_loopback_config(struct scsi_qla_host *ha,
+                                         uint32_t *mbox_cmd)
+{
+        uint32_t config = 0;
+        int status = QLA_SUCCESS;
+
+        DEBUG2(ql4_printk(KERN_INFO, ha, "%s: in\n", __func__));
+
+        status = qla4_83xx_get_port_config(ha, &config);
+        if (status != QLA_SUCCESS)
+                goto exit_pre_loopback_config;
+
+        DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Default port config=%08X\n",
+                          __func__, config));
+
+        if ((config & ENABLE_INTERNAL_LOOPBACK) ||
+            (config & ENABLE_EXTERNAL_LOOPBACK)) {
+                ql4_printk(KERN_INFO, ha, "%s: Loopback diagnostics already in progress. Invalid requiest\n",
+                           __func__);
+                goto exit_pre_loopback_config;
+        }
+
+        if (mbox_cmd[1] == QL_DIAG_CMD_TEST_INT_LOOPBACK)
+                config |= ENABLE_INTERNAL_LOOPBACK;
+
+        if (mbox_cmd[1] == QL_DIAG_CMD_TEST_EXT_LOOPBACK)
+                config |= ENABLE_EXTERNAL_LOOPBACK;
+
+        config &= ~ENABLE_DCBX;
+
+        DEBUG2(ql4_printk(KERN_INFO, ha, "%s: New port config=%08X\n",
+                          __func__, config));
+
+        ha->notify_idc_comp = 1;
+        ha->notify_link_up_comp = 1;
+
+        /* get the link state */
+        qla4xxx_get_firmware_state(ha);
+
+        status = qla4_83xx_set_port_config(ha, &config);
+        if (status != QLA_SUCCESS) {
+                ha->notify_idc_comp = 0;
+                ha->notify_link_up_comp = 0;
+                goto exit_pre_loopback_config;
+        }
+exit_pre_loopback_config:
+        DEBUG2(ql4_printk(KERN_INFO, ha, "%s: status = %s\n", __func__,
+                          STATUS(status)));
+        return status;
+}
+
+static int qla4_83xx_post_loopback_config(struct scsi_qla_host *ha,
+                                          uint32_t *mbox_cmd)
+{
+        int status = QLA_SUCCESS;
+        uint32_t config = 0;
+
+        DEBUG2(ql4_printk(KERN_INFO, ha, "%s: in\n", __func__));
+
+        status = qla4_83xx_get_port_config(ha, &config);
+        if (status != QLA_SUCCESS)
+                goto exit_post_loopback_config;
+
+        DEBUG2(ql4_printk(KERN_INFO, ha, "%s: port config=%08X\n", __func__,
+                          config));
+
+        if (mbox_cmd[1] == QL_DIAG_CMD_TEST_INT_LOOPBACK)
+                config &= ~ENABLE_INTERNAL_LOOPBACK;
+        else if (mbox_cmd[1] == QL_DIAG_CMD_TEST_EXT_LOOPBACK)
+                config &= ~ENABLE_EXTERNAL_LOOPBACK;
+
+        config |= ENABLE_DCBX;
+
+        DEBUG2(ql4_printk(KERN_INFO, ha,
+                          "%s: Restore default port config=%08X\n", __func__,
+                          config));
+
+        ha->notify_idc_comp = 1;
+        if (ha->addl_fw_state & FW_ADDSTATE_LINK_UP)
+                ha->notify_link_up_comp = 1;
+
+        status = qla4_83xx_set_port_config(ha, &config);
+        if (status != QLA_SUCCESS) {
+                ql4_printk(KERN_INFO, ha, "%s: Scheduling adapter reset\n",
+                           __func__);
+                set_bit(DPC_RESET_HA, &ha->dpc_flags);
+                clear_bit(AF_LOOPBACK, &ha->flags);
+                goto exit_post_loopback_config;
+        }
+
+exit_post_loopback_config:
+        DEBUG2(ql4_printk(KERN_INFO, ha, "%s: status = %s\n", __func__,
+                          STATUS(status)));
+        return status;
+}
+
+static void qla4xxx_execute_diag_loopback_cmd(struct bsg_job *bsg_job)
+{
+        struct Scsi_Host *host = iscsi_job_to_shost(bsg_job);
+        struct scsi_qla_host *ha = to_qla_host(host);
+        struct iscsi_bsg_request *bsg_req = bsg_job->request;
+        struct iscsi_bsg_reply *bsg_reply = bsg_job->reply;
+        uint8_t *rsp_ptr = NULL;
+        uint32_t mbox_cmd[MBOX_REG_COUNT];
+        uint32_t mbox_sts[MBOX_REG_COUNT];
+        int wait_for_link = 1;
+        int status = QLA_ERROR;
+
+        DEBUG2(ql4_printk(KERN_INFO, ha, "%s: in\n", __func__));
+
+        bsg_reply->reply_payload_rcv_len = 0;
+
+        if (test_bit(AF_LOOPBACK, &ha->flags)) {
+                ql4_printk(KERN_INFO, ha, "%s: Loopback Diagnostics already in progress. Invalid Request\n",
+                           __func__);
+                bsg_reply->result = DID_ERROR << 16;
+                goto exit_loopback_cmd;
+        }
+
+        if (test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
+                ql4_printk(KERN_INFO, ha, "%s: Adapter reset in progress. Invalid Request\n",
+                           __func__);
+                bsg_reply->result = DID_ERROR << 16;
+                goto exit_loopback_cmd;
+        }
+
+        memcpy(mbox_cmd, &bsg_req->rqst_data.h_vendor.vendor_cmd[1],
+               sizeof(uint32_t) * MBOX_REG_COUNT);
+
+        if (is_qla8032(ha) || is_qla8042(ha)) {
+                status = qla4_83xx_pre_loopback_config(ha, mbox_cmd);
+                if (status != QLA_SUCCESS) {
+                        bsg_reply->result = DID_ERROR << 16;
+                        goto exit_loopback_cmd;
+                }
+
+                status = qla4_83xx_wait_for_loopback_config_comp(ha,
+                                                                 wait_for_link);
+                if (status != QLA_SUCCESS) {
+                        bsg_reply->result = DID_TIME_OUT << 16;
+                        goto restore;
+                }
+        }
+
+        DEBUG2(ql4_printk(KERN_INFO, ha,
+                          "%s: mbox_cmd: %08X %08X %08X %08X %08X %08X %08X %08X\n",
+                          __func__, mbox_cmd[0], mbox_cmd[1], mbox_cmd[2],
+                          mbox_cmd[3], mbox_cmd[4], mbox_cmd[5], mbox_cmd[6],
+                          mbox_cmd[7]));
+
+        status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 8, &mbox_cmd[0],
+                                &mbox_sts[0]);
+
+        if (status == QLA_SUCCESS)
+                bsg_reply->result = DID_OK << 16;
+        else
+                bsg_reply->result = DID_ERROR << 16;
+
+        DEBUG2(ql4_printk(KERN_INFO, ha,
+                          "%s: mbox_sts: %08X %08X %08X %08X %08X %08X %08X %08X\n",
+                          __func__, mbox_sts[0], mbox_sts[1], mbox_sts[2],
+                          mbox_sts[3], mbox_sts[4], mbox_sts[5], mbox_sts[6],
+                          mbox_sts[7]));
+
+        /* Send mbox_sts to application */
+        bsg_job->reply_len = sizeof(struct iscsi_bsg_reply) + sizeof(mbox_sts);
+        rsp_ptr = ((uint8_t *)bsg_reply) + sizeof(struct iscsi_bsg_reply);
+        memcpy(rsp_ptr, mbox_sts, sizeof(mbox_sts));
+restore:
+        if (is_qla8032(ha) || is_qla8042(ha)) {
+                status = qla4_83xx_post_loopback_config(ha, mbox_cmd);
+                if (status != QLA_SUCCESS) {
+                        bsg_reply->result = DID_ERROR << 16;
+                        goto exit_loopback_cmd;
+                }
+
+                /* for pre_loopback_config() wait for LINK UP only
+                 * if PHY LINK is UP */
+                if (!(ha->addl_fw_state & FW_ADDSTATE_LINK_UP))
+                        wait_for_link = 0;
+
+                status = qla4_83xx_wait_for_loopback_config_comp(ha,
+                                                                 wait_for_link);
+                if (status != QLA_SUCCESS) {
+                        bsg_reply->result = DID_TIME_OUT << 16;
+                        goto exit_loopback_cmd;
+                }
+        }
+exit_loopback_cmd:
+        DEBUG2(ql4_printk(KERN_INFO, ha,
+                          "%s: bsg_reply->result = x%x, status = %s\n",
+                          __func__, bsg_reply->result, STATUS(status)));
+        bsg_job_done(bsg_job, bsg_reply->result,
+                     bsg_reply->reply_payload_rcv_len);
+}
+
+static int qla4xxx_execute_diag_test(struct bsg_job *bsg_job)
+{
+        struct Scsi_Host *host = iscsi_job_to_shost(bsg_job);
+        struct scsi_qla_host *ha = to_qla_host(host);
+        struct iscsi_bsg_request *bsg_req = bsg_job->request;
+        uint32_t diag_cmd;
+        int rval = -EINVAL;
+
+        DEBUG2(ql4_printk(KERN_INFO, ha, "%s: in\n", __func__));
+
+        diag_cmd = bsg_req->rqst_data.h_vendor.vendor_cmd[1];
+        if (diag_cmd == MBOX_CMD_DIAG_TEST) {
+                switch (bsg_req->rqst_data.h_vendor.vendor_cmd[2]) {
+                case QL_DIAG_CMD_TEST_DDR_SIZE:
+                case QL_DIAG_CMD_TEST_DDR_RW:
+                case QL_DIAG_CMD_TEST_ONCHIP_MEM_RW:
+                case QL_DIAG_CMD_TEST_NVRAM:
+                case QL_DIAG_CMD_TEST_FLASH_ROM:
+                case QL_DIAG_CMD_TEST_DMA_XFER:
+                case QL_DIAG_CMD_SELF_DDR_RW:
+                case QL_DIAG_CMD_SELF_ONCHIP_MEM_RW:
+                        /* Execute diag test for adapter RAM/FLASH */
+                        ql4xxx_execute_diag_cmd(bsg_job);
+                        /* Always return success as we want to sent bsg_reply
+                         * to Application */
+                        rval = QLA_SUCCESS;
+                        break;
+
+                case QL_DIAG_CMD_TEST_INT_LOOPBACK:
+                case QL_DIAG_CMD_TEST_EXT_LOOPBACK:
+                        /* Execute diag test for Network */
+                        qla4xxx_execute_diag_loopback_cmd(bsg_job);
+                        /* Always return success as we want to sent bsg_reply
+                         * to Application */
+                        rval = QLA_SUCCESS;
+                        break;
+                default:
+                        ql4_printk(KERN_ERR, ha, "%s: Invalid diag test: 0x%x\n",
+                                   __func__,
+                                   bsg_req->rqst_data.h_vendor.vendor_cmd[2]);
+                }
+        } else if ((diag_cmd == MBOX_CMD_SET_LED_CONFIG) ||
+                   (diag_cmd == MBOX_CMD_GET_LED_CONFIG)) {
+                ql4xxx_execute_diag_cmd(bsg_job);
+                rval = QLA_SUCCESS;
+        } else {
+                ql4_printk(KERN_ERR, ha, "%s: Invalid diag cmd: 0x%x\n",
+                           __func__, diag_cmd);
+        }
+
+        return rval;
+}
+
 /**
  * qla4xxx_process_vendor_specific - handle vendor specific bsg request
  * @job: iscsi_bsg_job to handle
@@ -479,6 +836,9 @@ int qla4xxx_process_vendor_specific(struct bsg_job *bsg_job)
         case QLISCSI_VND_GET_ACB:
                 return qla4xxx_bsg_get_acb(bsg_job);
 
+        case QLISCSI_VND_DIAG_TEST:
+                return qla4xxx_execute_diag_test(bsg_job);
+
         default:
                 ql4_printk(KERN_ERR, ha, "%s: invalid BSG vendor command: "
                            "0x%x\n", __func__, bsg_req->msgcode);