| /* |
| * QLOGIC LINUX SOFTWARE |
| * |
| * QLogic ISP2x00 device driver for Linux 2.6.x |
| * Copyright (C) 2003-2004 QLogic Corporation |
| * (www.qlogic.com) |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License as published by the |
| * Free Software Foundation; either version 2, or (at your option) any |
| * later version. |
| * |
| * This program is distributed in the hope that it will be useful, but |
| * WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * General Public License for more details. |
| * |
| */ |
| #include "qla_def.h" |
| |
| #include <linux/delay.h> |
| |
| #include "qla_devtbl.h" |
| |
| /* XXX(hch): this is ugly, but we don't want to pull in exioctl.h */ |
| #ifndef EXT_IS_LUN_BIT_SET |
| #define EXT_IS_LUN_BIT_SET(P,L) \ |
| (((P)->mask[L/8] & (0x80 >> (L%8)))?1:0) |
| #define EXT_SET_LUN_BIT(P,L) \ |
| ((P)->mask[L/8] |= (0x80 >> (L%8))) |
| #endif |
| |
| /* |
| * QLogic ISP2x00 Hardware Support Function Prototypes. |
| */ |
| static int qla2x00_pci_config(scsi_qla_host_t *); |
| static int qla2x00_isp_firmware(scsi_qla_host_t *); |
| static void qla2x00_reset_chip(scsi_qla_host_t *); |
| static int qla2x00_chip_diag(scsi_qla_host_t *); |
| static void qla2x00_resize_request_q(scsi_qla_host_t *); |
| static int qla2x00_setup_chip(scsi_qla_host_t *); |
| static void qla2x00_init_response_q_entries(scsi_qla_host_t *); |
| static int qla2x00_init_rings(scsi_qla_host_t *); |
| static int qla2x00_fw_ready(scsi_qla_host_t *); |
| static int qla2x00_configure_hba(scsi_qla_host_t *); |
| static int qla2x00_nvram_config(scsi_qla_host_t *); |
| static void qla2x00_init_tgt_map(scsi_qla_host_t *); |
| static int qla2x00_configure_loop(scsi_qla_host_t *); |
| static int qla2x00_configure_local_loop(scsi_qla_host_t *); |
| static void qla2x00_update_fcport(scsi_qla_host_t *, fc_port_t *); |
| static void qla2x00_lun_discovery(scsi_qla_host_t *, fc_port_t *); |
| static int qla2x00_rpt_lun_discovery(scsi_qla_host_t *, fc_port_t *, |
| inq_cmd_rsp_t *, dma_addr_t); |
| static int qla2x00_report_lun(scsi_qla_host_t *, fc_port_t *); |
| static fc_lun_t *qla2x00_cfg_lun(scsi_qla_host_t *, fc_port_t *, uint16_t, |
| inq_cmd_rsp_t *, dma_addr_t); |
| static fc_lun_t * qla2x00_add_lun(fc_port_t *, uint16_t); |
| static int qla2x00_inquiry(scsi_qla_host_t *, fc_port_t *, uint16_t, |
| inq_cmd_rsp_t *, dma_addr_t); |
| static int qla2x00_configure_fabric(scsi_qla_host_t *); |
| static int qla2x00_find_all_fabric_devs(scsi_qla_host_t *, struct list_head *); |
| static int qla2x00_device_resync(scsi_qla_host_t *); |
| static int qla2x00_fabric_dev_login(scsi_qla_host_t *, fc_port_t *, |
| uint16_t *); |
| static void qla2x00_config_os(scsi_qla_host_t *ha); |
| static uint16_t qla2x00_fcport_bind(scsi_qla_host_t *ha, fc_port_t *fcport); |
| static os_lun_t * qla2x00_fclun_bind(scsi_qla_host_t *, fc_port_t *, |
| fc_lun_t *); |
| static void qla2x00_lun_free(scsi_qla_host_t *, uint16_t, uint16_t); |
| |
| static int qla2x00_restart_isp(scsi_qla_host_t *); |
| static void qla2x00_reset_adapter(scsi_qla_host_t *); |
| static os_tgt_t *qla2x00_tgt_alloc(scsi_qla_host_t *, uint16_t); |
| static os_lun_t *qla2x00_lun_alloc(scsi_qla_host_t *, uint16_t, uint16_t); |
| |
| /****************************************************************************/ |
| /* QLogic ISP2x00 Hardware Support Functions. */ |
| /****************************************************************************/ |
| |
| /* |
| * qla2x00_initialize_adapter |
| * Initialize board. |
| * |
| * Input: |
| * ha = adapter block pointer. |
| * |
| * Returns: |
| * 0 = success |
| */ |
| int |
| qla2x00_initialize_adapter(scsi_qla_host_t *ha) |
| { |
| int rval; |
| uint8_t restart_risc = 0; |
| uint8_t retry; |
| uint32_t wait_time; |
| |
| /* Clear adapter flags. */ |
| ha->flags.online = 0; |
| ha->flags.reset_active = 0; |
| atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME); |
| atomic_set(&ha->loop_state, LOOP_DOWN); |
| ha->device_flags = 0; |
| ha->sns_retry_cnt = 0; |
| ha->dpc_flags = 0; |
| ha->failback_delay = 0; |
| ha->flags.management_server_logged_in = 0; |
| ha->marker_needed = 0; |
| ha->mbx_flags = 0; |
| ha->isp_abort_cnt = 0; |
| ha->beacon_blink_led = 0; |
| |
| rval = qla2x00_pci_config(ha); |
| if (rval) { |
| DEBUG2(printk("scsi(%ld): Unable to configure PCI space=n", |
| ha->host_no)); |
| return (rval); |
| } |
| |
| qla2x00_reset_chip(ha); |
| |
| /* Initialize target map database. */ |
| qla2x00_init_tgt_map(ha); |
| |
| qla_printk(KERN_INFO, ha, "Configure NVRAM parameters...\n"); |
| qla2x00_nvram_config(ha); |
| |
| qla_printk(KERN_INFO, ha, "Verifying loaded RISC code...\n"); |
| |
| retry = 10; |
| /* |
| * Try to configure the loop. |
| */ |
| do { |
| restart_risc = 0; |
| |
| /* If firmware needs to be loaded */ |
| if (qla2x00_isp_firmware(ha) != QLA_SUCCESS) { |
| if ((rval = qla2x00_chip_diag(ha)) == QLA_SUCCESS) { |
| rval = qla2x00_setup_chip(ha); |
| } |
| } |
| |
| if (rval == QLA_SUCCESS && |
| (rval = qla2x00_init_rings(ha)) == QLA_SUCCESS) { |
| check_fw_ready_again: |
| /* |
| * Wait for a successful LIP up to a maximum |
| * of (in seconds): RISC login timeout value, |
| * RISC retry count value, and port down retry |
| * value OR a minimum of 4 seconds OR If no |
| * cable, only 5 seconds. |
| */ |
| rval = qla2x00_fw_ready(ha); |
| if (rval == QLA_SUCCESS) { |
| clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags); |
| |
| /* |
| * Wait at most MAX_TARGET RSCNs for a stable |
| * link. |
| */ |
| wait_time = 256; |
| do { |
| clear_bit(LOOP_RESYNC_NEEDED, |
| &ha->dpc_flags); |
| rval = qla2x00_configure_loop(ha); |
| |
| if (test_and_clear_bit(ISP_ABORT_NEEDED, |
| &ha->dpc_flags)) { |
| restart_risc = 1; |
| break; |
| } |
| |
| /* |
| * If loop state change while we were |
| * discoverying devices then wait for |
| * LIP to complete |
| */ |
| |
| if (atomic_read(&ha->loop_state) == |
| LOOP_DOWN && retry--) { |
| goto check_fw_ready_again; |
| } |
| wait_time--; |
| } while (!atomic_read(&ha->loop_down_timer) && |
| retry && |
| wait_time && |
| (test_bit(LOOP_RESYNC_NEEDED, |
| &ha->dpc_flags))); |
| |
| if (wait_time == 0) |
| rval = QLA_FUNCTION_FAILED; |
| if (ha->mem_err) |
| restart_risc = 1; |
| } else if (ha->device_flags & DFLG_NO_CABLE) |
| /* If no cable, then all is good. */ |
| rval = QLA_SUCCESS; |
| } |
| } while (restart_risc && retry--); |
| |
| if (rval == QLA_SUCCESS) { |
| clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags); |
| ha->marker_needed = 1; |
| qla2x00_marker(ha, 0, 0, MK_SYNC_ALL); |
| ha->marker_needed = 0; |
| |
| ha->flags.online = 1; |
| } else { |
| DEBUG2_3(printk("%s(): **** FAILED ****\n", __func__)); |
| } |
| |
| return (rval); |
| } |
| |
| /** |
| * qla2x00_pci_config() - Setup device PCI configuration registers. |
| * @ha: HA context |
| * |
| * Returns 0 on success. |
| */ |
| static int |
| qla2x00_pci_config(scsi_qla_host_t *ha) |
| { |
| uint16_t w, mwi; |
| unsigned long flags = 0; |
| uint32_t cnt; |
| |
| qla_printk(KERN_INFO, ha, "Configuring PCI space...\n"); |
| |
| /* |
| * Turn on PCI master; for system BIOSes that don't turn it on by |
| * default. |
| */ |
| pci_set_master(ha->pdev); |
| mwi = 0; |
| if (pci_set_mwi(ha->pdev)) |
| mwi = PCI_COMMAND_INVALIDATE; |
| pci_read_config_word(ha->pdev, PCI_REVISION_ID, &ha->revision); |
| |
| if (!ha->iobase) |
| return (QLA_FUNCTION_FAILED); |
| |
| /* |
| * We want to respect framework's setting of PCI configuration space |
| * command register and also want to make sure that all bits of |
| * interest to us are properly set in command register. |
| */ |
| pci_read_config_word(ha->pdev, PCI_COMMAND, &w); |
| w |= mwi | (PCI_COMMAND_PARITY | PCI_COMMAND_SERR); |
| |
| /* Get PCI bus information. */ |
| spin_lock_irqsave(&ha->hardware_lock, flags); |
| ha->pci_attr = RD_REG_WORD(&ha->iobase->ctrl_status); |
| spin_unlock_irqrestore(&ha->hardware_lock, flags); |
| |
| if (!IS_QLA2100(ha) && !IS_QLA2200(ha)) { |
| pci_write_config_byte(ha->pdev, PCI_LATENCY_TIMER, 0x80); |
| |
| /* PCI Specification Revision 2.3 changes */ |
| if (IS_QLA2322(ha) || IS_QLA6322(ha)) |
| /* Command Register - Reset Interrupt Disable. */ |
| w &= ~PCI_COMMAND_INTX_DISABLE; |
| |
| /* |
| * If this is a 2300 card and not 2312, reset the |
| * COMMAND_INVALIDATE due to a bug in the 2300. Unfortunately, |
| * the 2310 also reports itself as a 2300 so we need to get the |
| * fb revision level -- a 6 indicates it really is a 2300 and |
| * not a 2310. |
| */ |
| if (IS_QLA2300(ha)) { |
| spin_lock_irqsave(&ha->hardware_lock, flags); |
| |
| /* Pause RISC. */ |
| WRT_REG_WORD(&ha->iobase->hccr, HCCR_PAUSE_RISC); |
| for (cnt = 0; cnt < 30000; cnt++) { |
| if ((RD_REG_WORD(&ha->iobase->hccr) & |
| HCCR_RISC_PAUSE) != 0) |
| break; |
| |
| udelay(10); |
| } |
| |
| /* Select FPM registers. */ |
| WRT_REG_WORD(&ha->iobase->ctrl_status, 0x20); |
| RD_REG_WORD(&ha->iobase->ctrl_status); |
| |
| /* Get the fb rev level */ |
| ha->fb_rev = RD_FB_CMD_REG(ha, ha->iobase); |
| |
| if (ha->fb_rev == FPM_2300) |
| w &= ~PCI_COMMAND_INVALIDATE; |
| |
| /* Deselect FPM registers. */ |
| WRT_REG_WORD(&ha->iobase->ctrl_status, 0x0); |
| RD_REG_WORD(&ha->iobase->ctrl_status); |
| |
| /* Release RISC module. */ |
| WRT_REG_WORD(&ha->iobase->hccr, HCCR_RELEASE_RISC); |
| for (cnt = 0; cnt < 30000; cnt++) { |
| if ((RD_REG_WORD(&ha->iobase->hccr) & |
| HCCR_RISC_PAUSE) == 0) |
| break; |
| |
| udelay(10); |
| } |
| |
| spin_unlock_irqrestore(&ha->hardware_lock, flags); |
| } |
| } |
| |
| pci_write_config_word(ha->pdev, PCI_COMMAND, w); |
| |
| /* Reset expansion ROM address decode enable */ |
| pci_read_config_word(ha->pdev, PCI_ROM_ADDRESS, &w); |
| w &= ~PCI_ROM_ADDRESS_ENABLE; |
| pci_write_config_word(ha->pdev, PCI_ROM_ADDRESS, w); |
| |
| return (QLA_SUCCESS); |
| } |
| |
| /** |
| * qla2x00_isp_firmware() - Choose firmware image. |
| * @ha: HA context |
| * |
| * Returns 0 on success. |
| */ |
| static int |
| qla2x00_isp_firmware(scsi_qla_host_t *ha) |
| { |
| int rval; |
| |
| /* Assume loading risc code */ |
| rval = QLA_FUNCTION_FAILED; |
| |
| if (ha->flags.disable_risc_code_load) { |
| DEBUG2(printk("scsi(%ld): RISC CODE NOT loaded\n", |
| ha->host_no)); |
| qla_printk(KERN_INFO, ha, "RISC CODE NOT loaded\n"); |
| |
| /* Verify checksum of loaded RISC code. */ |
| rval = qla2x00_verify_checksum(ha); |
| } |
| |
| if (rval) { |
| DEBUG2_3(printk("scsi(%ld): **** Load RISC code ****\n", |
| ha->host_no)); |
| } |
| |
| return (rval); |
| } |
| |
| /** |
| * qla2x00_reset_chip() - Reset ISP chip. |
| * @ha: HA context |
| * |
| * Returns 0 on success. |
| */ |
| static void |
| qla2x00_reset_chip(scsi_qla_host_t *ha) |
| { |
| unsigned long flags = 0; |
| device_reg_t __iomem *reg = ha->iobase; |
| uint32_t cnt; |
| unsigned long mbx_flags = 0; |
| uint16_t cmd; |
| |
| /* Disable ISP interrupts. */ |
| qla2x00_disable_intrs(ha); |
| |
| spin_lock_irqsave(&ha->hardware_lock, flags); |
| |
| /* Turn off master enable */ |
| cmd = 0; |
| pci_read_config_word(ha->pdev, PCI_COMMAND, &cmd); |
| cmd &= ~PCI_COMMAND_MASTER; |
| pci_write_config_word(ha->pdev, PCI_COMMAND, cmd); |
| |
| if (!IS_QLA2100(ha)) { |
| /* Pause RISC. */ |
| WRT_REG_WORD(®->hccr, HCCR_PAUSE_RISC); |
| if (IS_QLA2200(ha) || IS_QLA2300(ha)) { |
| for (cnt = 0; cnt < 30000; cnt++) { |
| if ((RD_REG_WORD(®->hccr) & |
| HCCR_RISC_PAUSE) != 0) |
| break; |
| udelay(100); |
| } |
| } else { |
| RD_REG_WORD(®->hccr); /* PCI Posting. */ |
| udelay(10); |
| } |
| |
| /* Select FPM registers. */ |
| WRT_REG_WORD(®->ctrl_status, 0x20); |
| RD_REG_WORD(®->ctrl_status); /* PCI Posting. */ |
| |
| /* FPM Soft Reset. */ |
| WRT_REG_WORD(®->fpm_diag_config, 0x100); |
| RD_REG_WORD(®->fpm_diag_config); /* PCI Posting. */ |
| |
| /* Toggle Fpm Reset. */ |
| if (!IS_QLA2200(ha)) { |
| WRT_REG_WORD(®->fpm_diag_config, 0x0); |
| RD_REG_WORD(®->fpm_diag_config); /* PCI Posting. */ |
| } |
| |
| /* Select frame buffer registers. */ |
| WRT_REG_WORD(®->ctrl_status, 0x10); |
| RD_REG_WORD(®->ctrl_status); /* PCI Posting. */ |
| |
| /* Reset frame buffer FIFOs. */ |
| if (IS_QLA2200(ha)) { |
| WRT_FB_CMD_REG(ha, reg, 0xa000); |
| RD_FB_CMD_REG(ha, reg); /* PCI Posting. */ |
| } else { |
| WRT_FB_CMD_REG(ha, reg, 0x00fc); |
| |
| /* Read back fb_cmd until zero or 3 seconds max */ |
| for (cnt = 0; cnt < 3000; cnt++) { |
| if ((RD_FB_CMD_REG(ha, reg) & 0xff) == 0) |
| break; |
| udelay(100); |
| } |
| } |
| |
| /* Select RISC module registers. */ |
| WRT_REG_WORD(®->ctrl_status, 0); |
| RD_REG_WORD(®->ctrl_status); /* PCI Posting. */ |
| |
| /* Reset RISC processor. */ |
| WRT_REG_WORD(®->hccr, HCCR_RESET_RISC); |
| RD_REG_WORD(®->hccr); /* PCI Posting. */ |
| |
| /* Release RISC processor. */ |
| WRT_REG_WORD(®->hccr, HCCR_RELEASE_RISC); |
| RD_REG_WORD(®->hccr); /* PCI Posting. */ |
| } |
| |
| WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT); |
| WRT_REG_WORD(®->hccr, HCCR_CLR_HOST_INT); |
| |
| /* Reset ISP chip. */ |
| WRT_REG_WORD(®->ctrl_status, CSR_ISP_SOFT_RESET); |
| |
| /* Wait for RISC to recover from reset. */ |
| if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) { |
| /* |
| * It is necessary to for a delay here since the card doesn't |
| * respond to PCI reads during a reset. On some architectures |
| * this will result in an MCA. |
| */ |
| udelay(20); |
| for (cnt = 30000; cnt; cnt--) { |
| if ((RD_REG_WORD(®->ctrl_status) & |
| CSR_ISP_SOFT_RESET) == 0) |
| break; |
| udelay(100); |
| } |
| } else |
| udelay(10); |
| |
| /* Reset RISC processor. */ |
| WRT_REG_WORD(®->hccr, HCCR_RESET_RISC); |
| |
| WRT_REG_WORD(®->semaphore, 0); |
| |
| /* Release RISC processor. */ |
| WRT_REG_WORD(®->hccr, HCCR_RELEASE_RISC); |
| RD_REG_WORD(®->hccr); /* PCI Posting. */ |
| |
| if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) { |
| for (cnt = 0; cnt < 30000; cnt++) { |
| if (!(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) |
| spin_lock_irqsave(&ha->mbx_reg_lock, mbx_flags); |
| |
| if (RD_MAILBOX_REG(ha, reg, 0) != MBS_BUSY) { |
| if (!(test_bit(ABORT_ISP_ACTIVE, |
| &ha->dpc_flags))) |
| spin_unlock_irqrestore( |
| &ha->mbx_reg_lock, mbx_flags); |
| break; |
| } |
| |
| if (!(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) |
| spin_unlock_irqrestore(&ha->mbx_reg_lock, |
| mbx_flags); |
| |
| udelay(100); |
| } |
| } else |
| udelay(100); |
| |
| /* Turn on master enable */ |
| cmd |= PCI_COMMAND_MASTER; |
| pci_write_config_word(ha->pdev, PCI_COMMAND, cmd); |
| |
| /* Disable RISC pause on FPM parity error. */ |
| if (!IS_QLA2100(ha)) { |
| WRT_REG_WORD(®->hccr, HCCR_DISABLE_PARITY_PAUSE); |
| RD_REG_WORD(®->hccr); /* PCI Posting. */ |
| } |
| |
| spin_unlock_irqrestore(&ha->hardware_lock, flags); |
| } |
| |
| /** |
| * qla2x00_chip_diag() - Test chip for proper operation. |
| * @ha: HA context |
| * |
| * Returns 0 on success. |
| */ |
| static int |
| qla2x00_chip_diag(scsi_qla_host_t *ha) |
| { |
| int rval; |
| device_reg_t __iomem *reg = ha->iobase; |
| unsigned long flags = 0; |
| uint16_t data; |
| uint32_t cnt; |
| uint16_t mb[5]; |
| |
| /* Assume a failed state */ |
| rval = QLA_FUNCTION_FAILED; |
| |
| DEBUG3(printk("scsi(%ld): Testing device at %lx.\n", |
| ha->host_no, (u_long)®->flash_address)); |
| |
| spin_lock_irqsave(&ha->hardware_lock, flags); |
| |
| /* Reset ISP chip. */ |
| WRT_REG_WORD(®->ctrl_status, CSR_ISP_SOFT_RESET); |
| |
| /* |
| * We need to have a delay here since the card will not respond while |
| * in reset causing an MCA on some architectures. |
| */ |
| udelay(20); |
| data = qla2x00_debounce_register(®->ctrl_status); |
| for (cnt = 6000000 ; cnt && (data & CSR_ISP_SOFT_RESET); cnt--) { |
| udelay(5); |
| data = RD_REG_WORD(®->ctrl_status); |
| barrier(); |
| } |
| |
| if (!cnt) |
| goto chip_diag_failed; |
| |
| DEBUG3(printk("scsi(%ld): Reset register cleared by chip reset\n", |
| ha->host_no)); |
| |
| /* Reset RISC processor. */ |
| WRT_REG_WORD(®->hccr, HCCR_RESET_RISC); |
| WRT_REG_WORD(®->hccr, HCCR_RELEASE_RISC); |
| |
| /* Workaround for QLA2312 PCI parity error */ |
| if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) { |
| data = qla2x00_debounce_register(MAILBOX_REG(ha, reg, 0)); |
| for (cnt = 6000000; cnt && (data == MBS_BUSY); cnt--) { |
| udelay(5); |
| data = RD_MAILBOX_REG(ha, reg, 0); |
| barrier(); |
| } |
| } else |
| udelay(10); |
| |
| if (!cnt) |
| goto chip_diag_failed; |
| |
| /* Check product ID of chip */ |
| DEBUG3(printk("scsi(%ld): Checking product ID of chip\n", ha->host_no)); |
| |
| mb[1] = RD_MAILBOX_REG(ha, reg, 1); |
| mb[2] = RD_MAILBOX_REG(ha, reg, 2); |
| mb[3] = RD_MAILBOX_REG(ha, reg, 3); |
| mb[4] = qla2x00_debounce_register(MAILBOX_REG(ha, reg, 4)); |
| if (mb[1] != PROD_ID_1 || (mb[2] != PROD_ID_2 && mb[2] != PROD_ID_2a) || |
| mb[3] != PROD_ID_3) { |
| qla_printk(KERN_WARNING, ha, |
| "Wrong product ID = 0x%x,0x%x,0x%x\n", mb[1], mb[2], mb[3]); |
| |
| goto chip_diag_failed; |
| } |
| ha->product_id[0] = mb[1]; |
| ha->product_id[1] = mb[2]; |
| ha->product_id[2] = mb[3]; |
| ha->product_id[3] = mb[4]; |
| |
| /* Adjust fw RISC transfer size */ |
| if (ha->request_q_length > 1024) |
| ha->fw_transfer_size = REQUEST_ENTRY_SIZE * 1024; |
| else |
| ha->fw_transfer_size = REQUEST_ENTRY_SIZE * |
| ha->request_q_length; |
| |
| if (IS_QLA2200(ha) && |
| RD_MAILBOX_REG(ha, reg, 7) == QLA2200A_RISC_ROM_VER) { |
| /* Limit firmware transfer size with a 2200A */ |
| DEBUG3(printk("scsi(%ld): Found QLA2200A chip.\n", |
| ha->host_no)); |
| |
| ha->fw_transfer_size = 128; |
| } |
| |
| /* Wrap Incoming Mailboxes Test. */ |
| spin_unlock_irqrestore(&ha->hardware_lock, flags); |
| |
| DEBUG3(printk("scsi(%ld): Checking mailboxes.\n", ha->host_no)); |
| rval = qla2x00_mbx_reg_test(ha); |
| if (rval) { |
| DEBUG(printk("scsi(%ld): Failed mailbox send register test\n", |
| ha->host_no)); |
| qla_printk(KERN_WARNING, ha, |
| "Failed mailbox send register test\n"); |
| } |
| else { |
| /* Flag a successful rval */ |
| rval = QLA_SUCCESS; |
| } |
| spin_lock_irqsave(&ha->hardware_lock, flags); |
| |
| chip_diag_failed: |
| if (rval) |
| DEBUG2_3(printk("scsi(%ld): Chip diagnostics **** FAILED " |
| "****\n", ha->host_no)); |
| |
| spin_unlock_irqrestore(&ha->hardware_lock, flags); |
| |
| return (rval); |
| } |
| |
| /** |
| * qla2x00_resize_request_q() - Resize request queue given available ISP memory. |
| * @ha: HA context |
| * |
| * Returns 0 on success. |
| */ |
| static void |
| qla2x00_resize_request_q(scsi_qla_host_t *ha) |
| { |
| int rval; |
| uint16_t fw_iocb_cnt = 0; |
| uint16_t request_q_length = REQUEST_ENTRY_CNT_2XXX_EXT_MEM; |
| dma_addr_t request_dma; |
| request_t *request_ring; |
| |
| /* Valid only on recent ISPs. */ |
| if (IS_QLA2100(ha) || IS_QLA2200(ha)) |
| return; |
| |
| /* Retrieve IOCB counts available to the firmware. */ |
| rval = qla2x00_get_resource_cnts(ha, NULL, NULL, NULL, &fw_iocb_cnt); |
| if (rval) |
| return; |
| /* No point in continuing if current settings are sufficient. */ |
| if (fw_iocb_cnt < 1024) |
| return; |
| if (ha->request_q_length >= request_q_length) |
| return; |
| |
| /* Attempt to claim larger area for request queue. */ |
| request_ring = dma_alloc_coherent(&ha->pdev->dev, |
| (request_q_length + 1) * sizeof(request_t), &request_dma, |
| GFP_KERNEL); |
| if (request_ring == NULL) |
| return; |
| |
| /* Resize successful, report extensions. */ |
| qla_printk(KERN_INFO, ha, "Extended memory detected (%d KB)...\n", |
| (ha->fw_memory_size + 1) / 1024); |
| qla_printk(KERN_INFO, ha, "Resizing request queue depth " |
| "(%d -> %d)...\n", ha->request_q_length, request_q_length); |
| |
| /* Clear old allocations. */ |
| dma_free_coherent(&ha->pdev->dev, |
| (ha->request_q_length + 1) * sizeof(request_t), ha->request_ring, |
| ha->request_dma); |
| |
| /* Begin using larger queue. */ |
| ha->request_q_length = request_q_length; |
| ha->request_ring = request_ring; |
| ha->request_dma = request_dma; |
| } |
| |
| /** |
| * qla2x00_setup_chip() - Load and start RISC firmware. |
| * @ha: HA context |
| * |
| * Returns 0 on success. |
| */ |
| static int |
| qla2x00_setup_chip(scsi_qla_host_t *ha) |
| { |
| int rval; |
| uint16_t cnt; |
| uint16_t *risc_code; |
| unsigned long risc_address; |
| unsigned long risc_code_size; |
| int num; |
| int i; |
| uint16_t *req_ring; |
| struct qla_fw_info *fw_iter; |
| |
| rval = QLA_SUCCESS; |
| |
| /* Load firmware sequences */ |
| fw_iter = ha->brd_info->fw_info; |
| while (fw_iter->addressing != FW_INFO_ADDR_NOMORE) { |
| risc_code = fw_iter->fwcode; |
| risc_code_size = *fw_iter->fwlen; |
| |
| if (fw_iter->addressing == FW_INFO_ADDR_NORMAL) { |
| risc_address = *fw_iter->fwstart; |
| } else { |
| /* Extended address */ |
| risc_address = *fw_iter->lfwstart; |
| } |
| |
| num = 0; |
| rval = 0; |
| while (risc_code_size > 0 && !rval) { |
| cnt = (uint16_t)(ha->fw_transfer_size >> 1); |
| if (cnt > risc_code_size) |
| cnt = risc_code_size; |
| |
| DEBUG7(printk("scsi(%ld): Loading risc segment@ " |
| "addr %p, number of bytes 0x%x, offset 0x%lx.\n", |
| ha->host_no, risc_code, cnt, risc_address)); |
| |
| req_ring = (uint16_t *)ha->request_ring; |
| for (i = 0; i < cnt; i++) |
| req_ring[i] = cpu_to_le16(risc_code[i]); |
| |
| if (fw_iter->addressing == FW_INFO_ADDR_NORMAL) { |
| rval = qla2x00_load_ram(ha, |
| ha->request_dma, risc_address, cnt); |
| } else { |
| rval = qla2x00_load_ram_ext(ha, |
| ha->request_dma, risc_address, cnt); |
| } |
| if (rval) { |
| DEBUG(printk("scsi(%ld): [ERROR] Failed to " |
| "load segment %d of firmware\n", |
| ha->host_no, num)); |
| qla_printk(KERN_WARNING, ha, |
| "[ERROR] Failed to load " |
| "segment %d of firmware\n", num); |
| |
| qla2x00_dump_regs(ha); |
| break; |
| } |
| |
| risc_code += cnt; |
| risc_address += cnt; |
| risc_code_size -= cnt; |
| num++; |
| } |
| |
| /* Next firmware sequence */ |
| fw_iter++; |
| } |
| |
| /* Verify checksum of loaded RISC code. */ |
| if (!rval) { |
| DEBUG(printk("scsi(%ld): Verifying Checksum of loaded RISC " |
| "code.\n", ha->host_no)); |
| |
| rval = qla2x00_verify_checksum(ha); |
| if (rval == QLA_SUCCESS) { |
| /* Start firmware execution. */ |
| DEBUG(printk("scsi(%ld): Checksum OK, start " |
| "firmware.\n", ha->host_no)); |
| |
| rval = qla2x00_execute_fw(ha); |
| /* Retrieve firmware information. */ |
| if (rval == QLA_SUCCESS && ha->fw_major_version == 0) { |
| qla2x00_get_fw_version(ha, |
| &ha->fw_major_version, |
| &ha->fw_minor_version, |
| &ha->fw_subminor_version, |
| &ha->fw_attributes, &ha->fw_memory_size); |
| qla2x00_resize_request_q(ha); |
| } |
| } else { |
| DEBUG2(printk(KERN_INFO |
| "scsi(%ld): ISP Firmware failed checksum.\n", |
| ha->host_no)); |
| } |
| } |
| |
| if (rval) { |
| DEBUG2_3(printk("scsi(%ld): Setup chip **** FAILED ****.\n", |
| ha->host_no)); |
| } |
| |
| return (rval); |
| } |
| |
| /** |
| * qla2x00_init_response_q_entries() - Initializes response queue entries. |
| * @ha: HA context |
| * |
| * Beginning of request ring has initialization control block already built |
| * by nvram config routine. |
| * |
| * Returns 0 on success. |
| */ |
| static void |
| qla2x00_init_response_q_entries(scsi_qla_host_t *ha) |
| { |
| uint16_t cnt; |
| response_t *pkt; |
| |
| pkt = ha->response_ring_ptr; |
| for (cnt = 0; cnt < ha->response_q_length; cnt++) { |
| pkt->signature = RESPONSE_PROCESSED; |
| pkt++; |
| } |
| |
| } |
| |
| /** |
| * qla2x00_update_fw_options() - Read and process firmware options. |
| * @ha: HA context |
| * |
| * Returns 0 on success. |
| */ |
| static void |
| qla2x00_update_fw_options(scsi_qla_host_t *ha) |
| { |
| uint16_t swing, emphasis, tx_sens, rx_sens; |
| |
| memset(ha->fw_options, 0, sizeof(ha->fw_options)); |
| qla2x00_get_fw_options(ha, ha->fw_options); |
| |
| if (IS_QLA2100(ha) || IS_QLA2200(ha)) |
| return; |
| |
| /* Serial Link options. */ |
| DEBUG3(printk("scsi(%ld): Serial link options:\n", |
| ha->host_no)); |
| DEBUG3(qla2x00_dump_buffer((uint8_t *)&ha->fw_seriallink_options, |
| sizeof(ha->fw_seriallink_options))); |
| |
| ha->fw_options[1] &= ~FO1_SET_EMPHASIS_SWING; |
| if (ha->fw_seriallink_options[3] & BIT_2) { |
| ha->fw_options[1] |= FO1_SET_EMPHASIS_SWING; |
| |
| /* 1G settings */ |
| swing = ha->fw_seriallink_options[2] & (BIT_2 | BIT_1 | BIT_0); |
| emphasis = (ha->fw_seriallink_options[2] & |
| (BIT_4 | BIT_3)) >> 3; |
| tx_sens = ha->fw_seriallink_options[0] & |
| (BIT_3 | BIT_2 | BIT_1 | BIT_0); |
| rx_sens = (ha->fw_seriallink_options[0] & |
| (BIT_7 | BIT_6 | BIT_5 | BIT_4)) >> 4; |
| ha->fw_options[10] = (emphasis << 14) | (swing << 8); |
| if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) { |
| if (rx_sens == 0x0) |
| rx_sens = 0x3; |
| ha->fw_options[10] |= (tx_sens << 4) | rx_sens; |
| } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) |
| ha->fw_options[10] |= BIT_5 | |
| ((rx_sens & (BIT_1 | BIT_0)) << 2) | |
| (tx_sens & (BIT_1 | BIT_0)); |
| |
| /* 2G settings */ |
| swing = (ha->fw_seriallink_options[2] & |
| (BIT_7 | BIT_6 | BIT_5)) >> 5; |
| emphasis = ha->fw_seriallink_options[3] & (BIT_1 | BIT_0); |
| tx_sens = ha->fw_seriallink_options[1] & |
| (BIT_3 | BIT_2 | BIT_1 | BIT_0); |
| rx_sens = (ha->fw_seriallink_options[1] & |
| (BIT_7 | BIT_6 | BIT_5 | BIT_4)) >> 4; |
| ha->fw_options[11] = (emphasis << 14) | (swing << 8); |
| if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) { |
| if (rx_sens == 0x0) |
| rx_sens = 0x3; |
| ha->fw_options[11] |= (tx_sens << 4) | rx_sens; |
| } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) |
| ha->fw_options[11] |= BIT_5 | |
| ((rx_sens & (BIT_1 | BIT_0)) << 2) | |
| (tx_sens & (BIT_1 | BIT_0)); |
| } |
| |
| /* FCP2 options. */ |
| /* Return command IOCBs without waiting for an ABTS to complete. */ |
| ha->fw_options[3] |= BIT_13; |
| |
| /* LED scheme. */ |
| if (ha->flags.enable_led_scheme) |
| ha->fw_options[2] |= BIT_12; |
| |
| /* Update firmware options. */ |
| qla2x00_set_fw_options(ha, ha->fw_options); |
| } |
| |
| /** |
| * qla2x00_init_rings() - Initializes firmware. |
| * @ha: HA context |
| * |
| * Beginning of request ring has initialization control block already built |
| * by nvram config routine. |
| * |
| * Returns 0 on success. |
| */ |
| static int |
| qla2x00_init_rings(scsi_qla_host_t *ha) |
| { |
| int rval; |
| unsigned long flags = 0; |
| int cnt; |
| device_reg_t __iomem *reg = ha->iobase; |
| |
| spin_lock_irqsave(&ha->hardware_lock, flags); |
| |
| /* Clear outstanding commands array. */ |
| for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) |
| ha->outstanding_cmds[cnt] = NULL; |
| |
| ha->current_outstanding_cmd = 0; |
| |
| /* Clear RSCN queue. */ |
| ha->rscn_in_ptr = 0; |
| ha->rscn_out_ptr = 0; |
| |
| /* Initialize firmware. */ |
| ha->request_ring_ptr = ha->request_ring; |
| ha->req_ring_index = 0; |
| ha->req_q_cnt = ha->request_q_length; |
| ha->response_ring_ptr = ha->response_ring; |
| ha->rsp_ring_index = 0; |
| |
| /* Setup ring parameters in initialization control block. */ |
| ha->init_cb->request_q_outpointer = __constant_cpu_to_le16(0); |
| ha->init_cb->response_q_inpointer = __constant_cpu_to_le16(0); |
| ha->init_cb->request_q_length = cpu_to_le16(ha->request_q_length); |
| ha->init_cb->response_q_length = cpu_to_le16(ha->response_q_length); |
| ha->init_cb->request_q_address[0] = cpu_to_le32(LSD(ha->request_dma)); |
| ha->init_cb->request_q_address[1] = cpu_to_le32(MSD(ha->request_dma)); |
| ha->init_cb->response_q_address[0] = cpu_to_le32(LSD(ha->response_dma)); |
| ha->init_cb->response_q_address[1] = cpu_to_le32(MSD(ha->response_dma)); |
| |
| /* Initialize response queue entries */ |
| qla2x00_init_response_q_entries(ha); |
| |
| WRT_REG_WORD(ISP_REQ_Q_IN(ha, reg), 0); |
| WRT_REG_WORD(ISP_REQ_Q_OUT(ha, reg), 0); |
| WRT_REG_WORD(ISP_RSP_Q_IN(ha, reg), 0); |
| WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), 0); |
| RD_REG_WORD(ISP_RSP_Q_OUT(ha, reg)); /* PCI Posting. */ |
| |
| spin_unlock_irqrestore(&ha->hardware_lock, flags); |
| |
| /* Update any ISP specific firmware options before initialization. */ |
| qla2x00_update_fw_options(ha); |
| |
| DEBUG(printk("scsi(%ld): Issue init firmware.\n", ha->host_no)); |
| rval = qla2x00_init_firmware(ha, sizeof(init_cb_t)); |
| if (rval) { |
| DEBUG2_3(printk("scsi(%ld): Init firmware **** FAILED ****.\n", |
| ha->host_no)); |
| } else { |
| DEBUG3(printk("scsi(%ld): Init firmware -- success.\n", |
| ha->host_no)); |
| } |
| |
| return (rval); |
| } |
| |
| /** |
| * qla2x00_fw_ready() - Waits for firmware ready. |
| * @ha: HA context |
| * |
| * Returns 0 on success. |
| */ |
| static int |
| qla2x00_fw_ready(scsi_qla_host_t *ha) |
| { |
| int rval; |
| unsigned long wtime, mtime; |
| uint16_t min_wait; /* Minimum wait time if loop is down */ |
| uint16_t wait_time; /* Wait time if loop is coming ready */ |
| uint16_t fw_state; |
| |
| rval = QLA_SUCCESS; |
| |
| /* 20 seconds for loop down. */ |
| min_wait = 20; |
| |
| /* |
| * Firmware should take at most one RATOV to login, plus 5 seconds for |
| * our own processing. |
| */ |
| if ((wait_time = (ha->retry_count*ha->login_timeout) + 5) < min_wait) { |
| wait_time = min_wait; |
| } |
| |
| /* Min wait time if loop down */ |
| mtime = jiffies + (min_wait * HZ); |
| |
| /* wait time before firmware ready */ |
| wtime = jiffies + (wait_time * HZ); |
| |
| /* Wait for ISP to finish LIP */ |
| if (!ha->flags.init_done) |
| qla_printk(KERN_INFO, ha, "Waiting for LIP to complete...\n"); |
| |
| DEBUG3(printk("scsi(%ld): Waiting for LIP to complete...\n", |
| ha->host_no)); |
| |
| do { |
| rval = qla2x00_get_firmware_state(ha, &fw_state); |
| if (rval == QLA_SUCCESS) { |
| if (fw_state < FSTATE_LOSS_OF_SYNC) { |
| ha->device_flags &= ~DFLG_NO_CABLE; |
| } |
| if (fw_state == FSTATE_READY) { |
| DEBUG(printk("scsi(%ld): F/W Ready - OK \n", |
| ha->host_no)); |
| |
| qla2x00_get_retry_cnt(ha, &ha->retry_count, |
| &ha->login_timeout, &ha->r_a_tov); |
| |
| rval = QLA_SUCCESS; |
| break; |
| } |
| |
| rval = QLA_FUNCTION_FAILED; |
| |
| if (atomic_read(&ha->loop_down_timer) && |
| (fw_state >= FSTATE_LOSS_OF_SYNC || |
| fw_state == FSTATE_WAIT_AL_PA)) { |
| /* Loop down. Timeout on min_wait for states |
| * other than Wait for Login. |
| */ |
| if (time_after_eq(jiffies, mtime)) { |
| qla_printk(KERN_INFO, ha, |
| "Cable is unplugged...\n"); |
| |
| ha->device_flags |= DFLG_NO_CABLE; |
| break; |
| } |
| } |
| } else { |
| /* Mailbox cmd failed. Timeout on min_wait. */ |
| if (time_after_eq(jiffies, mtime)) |
| break; |
| } |
| |
| if (time_after_eq(jiffies, wtime)) |
| break; |
| |
| /* Delay for a while */ |
| msleep(500); |
| |
| DEBUG3(printk("scsi(%ld): fw_state=%x curr time=%lx.\n", |
| ha->host_no, fw_state, jiffies)); |
| } while (1); |
| |
| DEBUG(printk("scsi(%ld): fw_state=%x curr time=%lx.\n", |
| ha->host_no, fw_state, jiffies)); |
| |
| if (rval) { |
| DEBUG2_3(printk("scsi(%ld): Firmware ready **** FAILED ****.\n", |
| ha->host_no)); |
| } |
| |
| return (rval); |
| } |
| |
| /* |
| * qla2x00_configure_hba |
| * Setup adapter context. |
| * |
| * Input: |
| * ha = adapter state pointer. |
| * |
| * Returns: |
| * 0 = success |
| * |
| * Context: |
| * Kernel context. |
| */ |
| static int |
| qla2x00_configure_hba(scsi_qla_host_t *ha) |
| { |
| int rval; |
| uint16_t loop_id; |
| uint16_t topo; |
| uint8_t al_pa; |
| uint8_t area; |
| uint8_t domain; |
| char connect_type[22]; |
| |
| /* Get host addresses. */ |
| rval = qla2x00_get_adapter_id(ha, |
| &loop_id, &al_pa, &area, &domain, &topo); |
| if (rval != QLA_SUCCESS) { |
| qla_printk(KERN_WARNING, ha, |
| "ERROR -- Unable to get host loop ID.\n"); |
| set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); |
| return (rval); |
| } |
| |
| if (topo == 4) { |
| qla_printk(KERN_INFO, ha, |
| "Cannot get topology - retrying.\n"); |
| return (QLA_FUNCTION_FAILED); |
| } |
| |
| ha->loop_id = loop_id; |
| |
| /* initialize */ |
| ha->min_external_loopid = SNS_FIRST_LOOP_ID; |
| ha->operating_mode = LOOP; |
| |
| switch (topo) { |
| case 0: |
| DEBUG3(printk("scsi(%ld): HBA in NL topology.\n", |
| ha->host_no)); |
| ha->current_topology = ISP_CFG_NL; |
| strcpy(connect_type, "(Loop)"); |
| break; |
| |
| case 1: |
| DEBUG3(printk("scsi(%ld): HBA in FL topology.\n", |
| ha->host_no)); |
| ha->current_topology = ISP_CFG_FL; |
| strcpy(connect_type, "(FL_Port)"); |
| break; |
| |
| case 2: |
| DEBUG3(printk("scsi(%ld): HBA in N P2P topology.\n", |
| ha->host_no)); |
| ha->operating_mode = P2P; |
| ha->current_topology = ISP_CFG_N; |
| strcpy(connect_type, "(N_Port-to-N_Port)"); |
| break; |
| |
| case 3: |
| DEBUG3(printk("scsi(%ld): HBA in F P2P topology.\n", |
| ha->host_no)); |
| ha->operating_mode = P2P; |
| ha->current_topology = ISP_CFG_F; |
| strcpy(connect_type, "(F_Port)"); |
| break; |
| |
| default: |
| DEBUG3(printk("scsi(%ld): HBA in unknown topology %x. " |
| "Using NL.\n", |
| ha->host_no, topo)); |
| ha->current_topology = ISP_CFG_NL; |
| strcpy(connect_type, "(Loop)"); |
| break; |
| } |
| |
| /* Save Host port and loop ID. */ |
| /* byte order - Big Endian */ |
| ha->d_id.b.domain = domain; |
| ha->d_id.b.area = area; |
| ha->d_id.b.al_pa = al_pa; |
| |
| if (!ha->flags.init_done) |
| qla_printk(KERN_INFO, ha, |
| "Topology - %s, Host Loop address 0x%x\n", |
| connect_type, ha->loop_id); |
| |
| if (rval) { |
| DEBUG2_3(printk("scsi(%ld): FAILED.\n", ha->host_no)); |
| } else { |
| DEBUG3(printk("scsi(%ld): exiting normally.\n", ha->host_no)); |
| } |
| |
| return(rval); |
| } |
| |
| /* |
| * NVRAM configuration for ISP 2xxx |
| * |
| * Input: |
| * ha = adapter block pointer. |
| * |
| * Output: |
| * initialization control block in response_ring |
| * host adapters parameters in host adapter block |
| * |
| * Returns: |
| * 0 = success. |
| */ |
| static int |
| qla2x00_nvram_config(scsi_qla_host_t *ha) |
| { |
| int rval; |
| uint8_t chksum = 0; |
| uint16_t cnt; |
| uint8_t *dptr1, *dptr2; |
| init_cb_t *icb = ha->init_cb; |
| nvram_t *nv = (nvram_t *)ha->request_ring; |
| uint16_t *wptr = (uint16_t *)ha->request_ring; |
| device_reg_t __iomem *reg = ha->iobase; |
| uint8_t timer_mode; |
| |
| rval = QLA_SUCCESS; |
| |
| /* Determine NVRAM starting address. */ |
| ha->nvram_base = 0; |
| if (!IS_QLA2100(ha) && !IS_QLA2200(ha) && !IS_QLA2300(ha)) |
| if ((RD_REG_WORD(®->ctrl_status) >> 14) == 1) |
| ha->nvram_base = 0x80; |
| |
| /* Get NVRAM data and calculate checksum. */ |
| qla2x00_lock_nvram_access(ha); |
| for (cnt = 0; cnt < sizeof(nvram_t)/2; cnt++) { |
| *wptr = cpu_to_le16(qla2x00_get_nvram_word(ha, |
| (cnt+ha->nvram_base))); |
| chksum += (uint8_t)*wptr; |
| chksum += (uint8_t)(*wptr >> 8); |
| wptr++; |
| } |
| qla2x00_unlock_nvram_access(ha); |
| |
| DEBUG5(printk("scsi(%ld): Contents of NVRAM\n", ha->host_no)); |
| DEBUG5(qla2x00_dump_buffer((uint8_t *)ha->request_ring, |
| sizeof(nvram_t))); |
| |
| /* Bad NVRAM data, set defaults parameters. */ |
| if (chksum || nv->id[0] != 'I' || nv->id[1] != 'S' || |
| nv->id[2] != 'P' || nv->id[3] != ' ' || nv->nvram_version < 1) { |
| /* Reset NVRAM data. */ |
| qla_printk(KERN_WARNING, ha, "Inconsistent NVRAM detected: " |
| "checksum=0x%x id=%c version=0x%x.\n", chksum, nv->id[0], |
| nv->nvram_version); |
| qla_printk(KERN_WARNING, ha, "Falling back to functioning (yet " |
| "invalid -- WWPN) defaults.\n"); |
| |
| /* |
| * Set default initialization control block. |
| */ |
| memset(nv, 0, sizeof(nvram_t)); |
| nv->parameter_block_version = ICB_VERSION; |
| |
| if (IS_QLA23XX(ha)) { |
| nv->firmware_options[0] = BIT_2 | BIT_1; |
| nv->firmware_options[1] = BIT_7 | BIT_5; |
| nv->add_firmware_options[0] = BIT_5; |
| nv->add_firmware_options[1] = BIT_5 | BIT_4; |
| nv->frame_payload_size = __constant_cpu_to_le16(2048); |
| nv->special_options[1] = BIT_7; |
| } else if (IS_QLA2200(ha)) { |
| nv->firmware_options[0] = BIT_2 | BIT_1; |
| nv->firmware_options[1] = BIT_7 | BIT_5; |
| nv->add_firmware_options[0] = BIT_5; |
| nv->add_firmware_options[1] = BIT_5 | BIT_4; |
| nv->frame_payload_size = __constant_cpu_to_le16(1024); |
| } else if (IS_QLA2100(ha)) { |
| nv->firmware_options[0] = BIT_3 | BIT_1; |
| nv->firmware_options[1] = BIT_5; |
| nv->frame_payload_size = __constant_cpu_to_le16(1024); |
| } |
| |
| nv->max_iocb_allocation = __constant_cpu_to_le16(256); |
| nv->execution_throttle = __constant_cpu_to_le16(16); |
| nv->retry_count = 8; |
| nv->retry_delay = 1; |
| |
| nv->port_name[0] = 33; |
| nv->port_name[3] = 224; |
| nv->port_name[4] = 139; |
| |
| nv->login_timeout = 4; |
| |
| /* |
| * Set default host adapter parameters |
| */ |
| nv->host_p[1] = BIT_2; |
| nv->reset_delay = 5; |
| nv->port_down_retry_count = 8; |
| nv->max_luns_per_target = __constant_cpu_to_le16(8); |
| nv->link_down_timeout = 60; |
| |
| rval = 1; |
| } |
| |
| #if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2) |
| /* |
| * The SN2 does not provide BIOS emulation which means you can't change |
| * potentially bogus BIOS settings. Force the use of default settings |
| * for link rate and frame size. Hope that the rest of the settings |
| * are valid. |
| */ |
| if (ia64_platform_is("sn2")) { |
| nv->frame_payload_size = __constant_cpu_to_le16(2048); |
| if (IS_QLA23XX(ha)) |
| nv->special_options[1] = BIT_7; |
| } |
| #endif |
| |
| /* Reset Initialization control block */ |
| memset(icb, 0, sizeof(init_cb_t)); |
| |
| /* |
| * Setup driver NVRAM options. |
| */ |
| nv->firmware_options[0] |= (BIT_6 | BIT_1); |
| nv->firmware_options[0] &= ~(BIT_5 | BIT_4); |
| nv->firmware_options[1] |= (BIT_5 | BIT_0); |
| nv->firmware_options[1] &= ~BIT_4; |
| |
| if (IS_QLA23XX(ha)) { |
| nv->firmware_options[0] |= BIT_2; |
| nv->firmware_options[0] &= ~BIT_3; |
| |
| if (IS_QLA2300(ha)) { |
| if (ha->fb_rev == FPM_2310) { |
| strcpy(ha->model_number, "QLA2310"); |
| } else { |
| strcpy(ha->model_number, "QLA2300"); |
| } |
| } else { |
| if (rval == 0 && |
| memcmp(nv->model_number, BINZERO, |
| sizeof(nv->model_number)) != 0) { |
| char *st, *en; |
| |
| strncpy(ha->model_number, nv->model_number, |
| sizeof(nv->model_number)); |
| st = en = ha->model_number; |
| en += sizeof(nv->model_number) - 1; |
| while (en > st) { |
| if (*en != 0x20 && *en != 0x00) |
| break; |
| *en-- = '\0'; |
| } |
| } else { |
| uint16_t index; |
| |
| index = (ha->pdev->subsystem_device & 0xff); |
| if (index < QLA_MODEL_NAMES) { |
| strcpy(ha->model_number, |
| qla2x00_model_name[index]); |
| ha->model_desc = |
| qla2x00_model_desc[index]; |
| } else { |
| strcpy(ha->model_number, "QLA23xx"); |
| } |
| } |
| } |
| } else if (IS_QLA2200(ha)) { |
| nv->firmware_options[0] |= BIT_2; |
| /* |
| * 'Point-to-point preferred, else loop' is not a safe |
| * connection mode setting. |
| */ |
| if ((nv->add_firmware_options[0] & (BIT_6 | BIT_5 | BIT_4)) == |
| (BIT_5 | BIT_4)) { |
| /* Force 'loop preferred, else point-to-point'. */ |
| nv->add_firmware_options[0] &= ~(BIT_6 | BIT_5 | BIT_4); |
| nv->add_firmware_options[0] |= BIT_5; |
| } |
| strcpy(ha->model_number, "QLA22xx"); |
| } else /*if (IS_QLA2100(ha))*/ { |
| strcpy(ha->model_number, "QLA2100"); |
| } |
| |
| /* |
| * Copy over NVRAM RISC parameter block to initialization control block. |
| */ |
| dptr1 = (uint8_t *)icb; |
| dptr2 = (uint8_t *)&nv->parameter_block_version; |
| cnt = (uint8_t *)&icb->request_q_outpointer - (uint8_t *)&icb->version; |
| while (cnt--) |
| *dptr1++ = *dptr2++; |
| |
| /* Copy 2nd half. */ |
| dptr1 = (uint8_t *)icb->add_firmware_options; |
| cnt = (uint8_t *)icb->reserved_3 - (uint8_t *)icb->add_firmware_options; |
| while (cnt--) |
| *dptr1++ = *dptr2++; |
| |
| /* Prepare nodename */ |
| if ((icb->firmware_options[1] & BIT_6) == 0) { |
| /* |
| * Firmware will apply the following mask if the nodename was |
| * not provided. |
| */ |
| memcpy(icb->node_name, icb->port_name, WWN_SIZE); |
| icb->node_name[0] &= 0xF0; |
| } |
| |
| /* |
| * Set host adapter parameters. |
| */ |
| ha->nvram_version = nv->nvram_version; |
| |
| ha->flags.disable_risc_code_load = ((nv->host_p[0] & BIT_4) ? 1 : 0); |
| /* Always load RISC code on non ISP2[12]00 chips. */ |
| if (!IS_QLA2100(ha) && !IS_QLA2200(ha)) |
| ha->flags.disable_risc_code_load = 0; |
| ha->flags.enable_lip_reset = ((nv->host_p[1] & BIT_1) ? 1 : 0); |
| ha->flags.enable_lip_full_login = ((nv->host_p[1] & BIT_2) ? 1 : 0); |
| ha->flags.enable_target_reset = ((nv->host_p[1] & BIT_3) ? 1 : 0); |
| ha->flags.enable_led_scheme = ((nv->efi_parameters & BIT_3) ? 1 : 0); |
| |
| ha->operating_mode = |
| (icb->add_firmware_options[0] & (BIT_6 | BIT_5 | BIT_4)) >> 4; |
| |
| memcpy(ha->fw_seriallink_options, nv->seriallink_options, |
| sizeof(ha->fw_seriallink_options)); |
| |
| /* save HBA serial number */ |
| ha->serial0 = icb->port_name[5]; |
| ha->serial1 = icb->port_name[6]; |
| ha->serial2 = icb->port_name[7]; |
| memcpy(ha->node_name, icb->node_name, WWN_SIZE); |
| |
| icb->execution_throttle = __constant_cpu_to_le16(0xFFFF); |
| |
| ha->retry_count = nv->retry_count; |
| |
| /* Set minimum login_timeout to 4 seconds. */ |
| if (nv->login_timeout < ql2xlogintimeout) |
| nv->login_timeout = ql2xlogintimeout; |
| if (nv->login_timeout < 4) |
| nv->login_timeout = 4; |
| ha->login_timeout = nv->login_timeout; |
| icb->login_timeout = nv->login_timeout; |
| |
| /* Set minimum RATOV to 200 tenths of a second. */ |
| ha->r_a_tov = 200; |
| |
| ha->minimum_timeout = |
| (ha->login_timeout * ha->retry_count) + nv->port_down_retry_count; |
| ha->loop_reset_delay = nv->reset_delay; |
| |
| /* Will get the value from NVRAM. */ |
| ha->loop_down_timeout = LOOP_DOWN_TIMEOUT; |
| |
| /* Link Down Timeout = 0: |
| * |
| * When Port Down timer expires we will start returning |
| * I/O's to OS with "DID_NO_CONNECT". |
| * |
| * Link Down Timeout != 0: |
| * |
| * The driver waits for the link to come up after link down |
| * before returning I/Os to OS with "DID_NO_CONNECT". |
| */ |
| if (nv->link_down_timeout == 0) { |
| ha->loop_down_abort_time = |
| (LOOP_DOWN_TIME - ha->loop_down_timeout); |
| } else { |
| ha->link_down_timeout = nv->link_down_timeout; |
| ha->loop_down_abort_time = |
| (LOOP_DOWN_TIME - ha->link_down_timeout); |
| } |
| |
| ha->max_luns = MAX_LUNS; |
| ha->max_probe_luns = le16_to_cpu(nv->max_luns_per_target); |
| if (ha->max_probe_luns == 0) |
| ha->max_probe_luns = MIN_LUNS; |
| |
| /* |
| * Need enough time to try and get the port back. |
| */ |
| ha->port_down_retry_count = nv->port_down_retry_count; |
| if (qlport_down_retry) |
| ha->port_down_retry_count = qlport_down_retry; |
| /* Set login_retry_count */ |
| ha->login_retry_count = nv->retry_count; |
| if (ha->port_down_retry_count == nv->port_down_retry_count && |
| ha->port_down_retry_count > 3) |
| ha->login_retry_count = ha->port_down_retry_count; |
| else if (ha->port_down_retry_count > (int)ha->login_retry_count) |
| ha->login_retry_count = ha->port_down_retry_count; |
| if (ql2xloginretrycount) |
| ha->login_retry_count = ql2xloginretrycount; |
| |
| ha->binding_type = Bind; |
| if (ha->binding_type != BIND_BY_PORT_NAME && |
| ha->binding_type != BIND_BY_PORT_ID) { |
| qla_printk(KERN_WARNING, ha, |
| "Invalid binding type specified (%d), " |
| "defaulting to BIND_BY_PORT_NAME!!!\n", ha->binding_type); |
| |
| ha->binding_type = BIND_BY_PORT_NAME; |
| } |
| |
| icb->lun_enables = __constant_cpu_to_le16(0); |
| icb->command_resource_count = 0; |
| icb->immediate_notify_resource_count = 0; |
| icb->timeout = __constant_cpu_to_le16(0); |
| |
| if (IS_QLA2100(ha) || IS_QLA2200(ha)) { |
| /* Enable RIO */ |
| icb->firmware_options[0] &= ~BIT_3; |
| icb->add_firmware_options[0] &= |
| ~(BIT_3 | BIT_2 | BIT_1 | BIT_0); |
| icb->add_firmware_options[0] |= BIT_2; |
| icb->response_accumulation_timer = 3; |
| icb->interrupt_delay_timer = 5; |
| |
| ha->flags.process_response_queue = 1; |
| } else { |
| /* Enable ZIO -- Support mode 5 only. */ |
| timer_mode = icb->add_firmware_options[0] & |
| (BIT_3 | BIT_2 | BIT_1 | BIT_0); |
| icb->add_firmware_options[0] &= |
| ~(BIT_3 | BIT_2 | BIT_1 | BIT_0); |
| if (ql2xenablezio) |
| timer_mode = BIT_2 | BIT_0; |
| if (timer_mode == (BIT_2 | BIT_0)) { |
| DEBUG2(printk("scsi(%ld): ZIO enabled; timer delay " |
| "(%d).\n", ha->host_no, ql2xintrdelaytimer)); |
| qla_printk(KERN_INFO, ha, |
| "ZIO enabled; timer delay (%d).\n", |
| ql2xintrdelaytimer); |
| |
| icb->add_firmware_options[0] |= timer_mode; |
| icb->interrupt_delay_timer = ql2xintrdelaytimer; |
| ha->flags.process_response_queue = 1; |
| } |
| } |
| |
| if (rval) { |
| DEBUG2_3(printk(KERN_WARNING |
| "scsi(%ld): NVRAM configuration failed!\n", ha->host_no)); |
| } |
| return (rval); |
| } |
| |
| /* |
| * qla2x00_init_tgt_map |
| * Initializes target map. |
| * |
| * Input: |
| * ha = adapter block pointer. |
| * |
| * Output: |
| * TGT_Q initialized |
| */ |
| static void |
| qla2x00_init_tgt_map(scsi_qla_host_t *ha) |
| { |
| uint32_t t; |
| |
| for (t = 0; t < MAX_TARGETS; t++) |
| TGT_Q(ha, t) = (os_tgt_t *)NULL; |
| } |
| |
| /** |
| * qla2x00_alloc_fcport() - Allocate a generic fcport. |
| * @ha: HA context |
| * @flags: allocation flags |
| * |
| * Returns a pointer to the allocated fcport, or NULL, if none available. |
| */ |
| fc_port_t * |
| qla2x00_alloc_fcport(scsi_qla_host_t *ha, int flags) |
| { |
| fc_port_t *fcport; |
| |
| fcport = kmalloc(sizeof(fc_port_t), flags); |
| if (fcport == NULL) |
| return (fcport); |
| |
| /* Setup fcport template structure. */ |
| memset(fcport, 0, sizeof (fc_port_t)); |
| fcport->ha = ha; |
| fcport->port_type = FCT_UNKNOWN; |
| fcport->loop_id = FC_NO_LOOP_ID; |
| fcport->iodesc_idx_sent = IODESC_INVALID_INDEX; |
| atomic_set(&fcport->state, FCS_UNCONFIGURED); |
| fcport->flags = FCF_RLC_SUPPORT; |
| INIT_LIST_HEAD(&fcport->fcluns); |
| |
| return (fcport); |
| } |
| |
| /* |
| * qla2x00_configure_loop |
| * Updates Fibre Channel Device Database with what is actually on loop. |
| * |
| * Input: |
| * ha = adapter block pointer. |
| * |
| * Returns: |
| * 0 = success. |
| * 1 = error. |
| * 2 = database was full and device was not configured. |
| */ |
| static int |
| qla2x00_configure_loop(scsi_qla_host_t *ha) |
| { |
| int rval; |
| unsigned long flags, save_flags; |
| |
| rval = QLA_SUCCESS; |
| |
| /* Get Initiator ID */ |
| if (test_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags)) { |
| rval = qla2x00_configure_hba(ha); |
| if (rval != QLA_SUCCESS) { |
| DEBUG(printk("scsi(%ld): Unable to configure HBA.\n", |
| ha->host_no)); |
| return (rval); |
| } |
| } |
| |
| save_flags = flags = ha->dpc_flags; |
| DEBUG(printk("scsi(%ld): Configure loop -- dpc flags =0x%lx\n", |
| ha->host_no, flags)); |
| |
| /* |
| * If we have both an RSCN and PORT UPDATE pending then handle them |
| * both at the same time. |
| */ |
| clear_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags); |
| clear_bit(RSCN_UPDATE, &ha->dpc_flags); |
| ha->mem_err = 0 ; |
| |
| /* Determine what we need to do */ |
| if (ha->current_topology == ISP_CFG_FL && |
| (test_bit(LOCAL_LOOP_UPDATE, &flags))) { |
| |
| ha->flags.rscn_queue_overflow = 1; |
| set_bit(RSCN_UPDATE, &flags); |
| |
| } else if (ha->current_topology == ISP_CFG_F && |
| (test_bit(LOCAL_LOOP_UPDATE, &flags))) { |
| |
| ha->flags.rscn_queue_overflow = 1; |
| set_bit(RSCN_UPDATE, &flags); |
| clear_bit(LOCAL_LOOP_UPDATE, &flags); |
| |
| } else if (!ha->flags.online || |
| (test_bit(ABORT_ISP_ACTIVE, &flags))) { |
| |
| ha->flags.rscn_queue_overflow = 1; |
| set_bit(RSCN_UPDATE, &flags); |
| set_bit(LOCAL_LOOP_UPDATE, &flags); |
| } |
| |
| if (test_bit(LOCAL_LOOP_UPDATE, &flags)) { |
| if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) { |
| rval = QLA_FUNCTION_FAILED; |
| } else { |
| rval = qla2x00_configure_local_loop(ha); |
| } |
| } |
| |
| if (rval == QLA_SUCCESS && test_bit(RSCN_UPDATE, &flags)) { |
| if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) { |
| rval = QLA_FUNCTION_FAILED; |
| } else { |
| rval = qla2x00_configure_fabric(ha); |
| } |
| } |
| |
| if (rval == QLA_SUCCESS) { |
| if (atomic_read(&ha->loop_down_timer) || |
| test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) { |
| rval = QLA_FUNCTION_FAILED; |
| } else { |
| qla2x00_config_os(ha); |
| atomic_set(&ha->loop_state, LOOP_READY); |
| |
| DEBUG(printk("scsi(%ld): LOOP READY\n", ha->host_no)); |
| } |
| } |
| |
| if (rval) { |
| DEBUG2_3(printk("%s(%ld): *** FAILED ***\n", |
| __func__, ha->host_no)); |
| } else { |
| DEBUG3(printk("%s: exiting normally\n", __func__)); |
| } |
| |
| /* Restore state if a resync event occured during processing */ |
| if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) { |
| if (test_bit(LOCAL_LOOP_UPDATE, &save_flags)) |
| set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags); |
| if (test_bit(RSCN_UPDATE, &save_flags)) |
| set_bit(RSCN_UPDATE, &ha->dpc_flags); |
| } |
| |
| return (rval); |
| } |
| |
| |
| |
| /* |
| * qla2x00_configure_local_loop |
| * Updates Fibre Channel Device Database with local loop devices. |
| * |
| * Input: |
| * ha = adapter block pointer. |
| * |
| * Returns: |
| * 0 = success. |
| */ |
| static int |
| qla2x00_configure_local_loop(scsi_qla_host_t *ha) |
| { |
| int rval, rval2; |
| int found_devs; |
| int found; |
| fc_port_t *fcport, *new_fcport; |
| |
| uint16_t index; |
| uint16_t entries; |
| char *id_iter; |
| uint16_t loop_id; |
| uint8_t domain, area, al_pa; |
| |
| found_devs = 0; |
| new_fcport = NULL; |
| entries = MAX_FIBRE_DEVICES; |
| |
| DEBUG3(printk("scsi(%ld): Getting FCAL position map\n", ha->host_no)); |
| DEBUG3(qla2x00_get_fcal_position_map(ha, NULL)); |
| |
| /* Get list of logged in devices. */ |
| memset(ha->gid_list, 0, GID_LIST_SIZE); |
| rval = qla2x00_get_id_list(ha, ha->gid_list, ha->gid_list_dma, |
| &entries); |
| if (rval != QLA_SUCCESS) |
| goto cleanup_allocation; |
| |
| DEBUG3(printk("scsi(%ld): Entries in ID list (%d)\n", |
| ha->host_no, entries)); |
| DEBUG3(qla2x00_dump_buffer((uint8_t *)ha->gid_list, |
| entries * sizeof(struct gid_list_info))); |
| |
| /* Allocate temporary fcport for any new fcports discovered. */ |
| new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL); |
| if (new_fcport == NULL) { |
| rval = QLA_MEMORY_ALLOC_FAILED; |
| goto cleanup_allocation; |
| } |
| new_fcport->flags &= ~FCF_FABRIC_DEVICE; |
| |
| /* |
| * Mark local devices that were present with FCF_DEVICE_LOST for now. |
| */ |
| list_for_each_entry(fcport, &ha->fcports, list) { |
| if (atomic_read(&fcport->state) == FCS_ONLINE && |
| fcport->port_type != FCT_BROADCAST && |
| (fcport->flags & FCF_FABRIC_DEVICE) == 0) { |
| |
| DEBUG(printk("scsi(%ld): Marking port lost, " |
| "loop_id=0x%04x\n", |
| ha->host_no, fcport->loop_id)); |
| |
| atomic_set(&fcport->state, FCS_DEVICE_LOST); |
| fcport->flags &= ~FCF_FARP_DONE; |
| } |
| } |
| |
| /* Add devices to port list. */ |
| id_iter = (char *)ha->gid_list; |
| for (index = 0; index < entries; index++) { |
| domain = ((struct gid_list_info *)id_iter)->domain; |
| area = ((struct gid_list_info *)id_iter)->area; |
| al_pa = ((struct gid_list_info *)id_iter)->al_pa; |
| if (IS_QLA2100(ha) || IS_QLA2200(ha)) { |
| loop_id = (uint16_t) |
| ((struct gid_list_info *)id_iter)->loop_id_2100; |
| id_iter += 4; |
| } else { |
| loop_id = le16_to_cpu( |
| ((struct gid_list_info *)id_iter)->loop_id); |
| id_iter += 6; |
| } |
| |
| /* Bypass reserved domain fields. */ |
| if ((domain & 0xf0) == 0xf0) |
| continue; |
| |
| /* Bypass if not same domain and area of adapter. */ |
| if (area != ha->d_id.b.area || domain != ha->d_id.b.domain) |
| continue; |
| |
| /* Bypass invalid local loop ID. */ |
| if (loop_id > LAST_LOCAL_LOOP_ID) |
| continue; |
| |
| /* Fill in member data. */ |
| new_fcport->d_id.b.domain = domain; |
| new_fcport->d_id.b.area = area; |
| new_fcport->d_id.b.al_pa = al_pa; |
| new_fcport->loop_id = loop_id; |
| rval2 = qla2x00_get_port_database(ha, new_fcport, 0); |
| if (rval2 != QLA_SUCCESS) { |
| DEBUG2(printk("scsi(%ld): Failed to retrieve fcport " |
| "information -- get_port_database=%x, " |
| "loop_id=0x%04x\n", |
| ha->host_no, rval2, new_fcport->loop_id)); |
| continue; |
| } |
| |
| /* Check for matching device in port list. */ |
| found = 0; |
| fcport = NULL; |
| list_for_each_entry(fcport, &ha->fcports, list) { |
| if (memcmp(new_fcport->port_name, fcport->port_name, |
| WWN_SIZE)) |
| continue; |
| |
| fcport->flags &= ~(FCF_FABRIC_DEVICE | |
| FCF_PERSISTENT_BOUND); |
| fcport->loop_id = new_fcport->loop_id; |
| fcport->port_type = new_fcport->port_type; |
| fcport->d_id.b24 = new_fcport->d_id.b24; |
| memcpy(fcport->node_name, new_fcport->node_name, |
| WWN_SIZE); |
| |
| found++; |
| break; |
| } |
| |
| if (!found) { |
| /* New device, add to fcports list. */ |
| new_fcport->flags &= ~FCF_PERSISTENT_BOUND; |
| list_add_tail(&new_fcport->list, &ha->fcports); |
| |
| /* Allocate a new replacement fcport. */ |
| fcport = new_fcport; |
| new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL); |
| if (new_fcport == NULL) { |
| rval = QLA_MEMORY_ALLOC_FAILED; |
| goto cleanup_allocation; |
| } |
| new_fcport->flags &= ~FCF_FABRIC_DEVICE; |
| } |
| |
| qla2x00_update_fcport(ha, fcport); |
| |
| found_devs++; |
| } |
| |
| cleanup_allocation: |
| if (new_fcport) |
| kfree(new_fcport); |
| |
| if (rval != QLA_SUCCESS) { |
| DEBUG2(printk("scsi(%ld): Configure local loop error exit: " |
| "rval=%x\n", ha->host_no, rval)); |
| } |
| |
| if (found_devs) { |
| ha->device_flags |= DFLG_LOCAL_DEVICES; |
| ha->device_flags &= ~DFLG_RETRY_LOCAL_DEVICES; |
| } |
| |
| return (rval); |
| } |
| |
| static void |
| qla2x00_probe_for_all_luns(scsi_qla_host_t *ha) |
| { |
| fc_port_t *fcport; |
| |
| qla2x00_mark_all_devices_lost(ha); |
| list_for_each_entry(fcport, &ha->fcports, list) { |
| if (fcport->port_type != FCT_TARGET) |
| continue; |
| |
| qla2x00_update_fcport(ha, fcport); |
| } |
| } |
| |
| /* |
| * qla2x00_update_fcport |
| * Updates device on list. |
| * |
| * Input: |
| * ha = adapter block pointer. |
| * fcport = port structure pointer. |
| * |
| * Return: |
| * 0 - Success |
| * BIT_0 - error |
| * |
| * Context: |
| * Kernel context. |
| */ |
| static void |
| qla2x00_update_fcport(scsi_qla_host_t *ha, fc_port_t *fcport) |
| { |
| uint16_t index; |
| unsigned long flags; |
| srb_t *sp; |
| |
| fcport->ha = ha; |
| fcport->login_retry = 0; |
| fcport->port_login_retry_count = ha->port_down_retry_count * |
| PORT_RETRY_TIME; |
| atomic_set(&fcport->port_down_timer, ha->port_down_retry_count * |
| PORT_RETRY_TIME); |
| fcport->flags &= ~FCF_LOGIN_NEEDED; |
| |
| /* |
| * Check for outstanding cmd on tape Bypass LUN discovery if active |
| * command on tape. |
| */ |
| if (fcport->flags & FCF_TAPE_PRESENT) { |
| spin_lock_irqsave(&ha->hardware_lock, flags); |
| for (index = 1; index < MAX_OUTSTANDING_COMMANDS; index++) { |
| if ((sp = ha->outstanding_cmds[index]) != 0) { |
| if (sp->fclun->fcport == fcport) { |
| atomic_set(&fcport->state, FCS_ONLINE); |
| spin_unlock_irqrestore( |
| &ha->hardware_lock, flags); |
| return; |
| } |
| } |
| } |
| spin_unlock_irqrestore(&ha->hardware_lock, flags); |
| } |
| |
| /* Do LUN discovery. */ |
| if (fcport->port_type == FCT_INITIATOR || |
| fcport->port_type == FCT_BROADCAST) { |
| fcport->device_type = TYPE_PROCESSOR; |
| } else { |
| qla2x00_lun_discovery(ha, fcport); |
| } |
| atomic_set(&fcport->state, FCS_ONLINE); |
| } |
| |
| /* |
| * qla2x00_lun_discovery |
| * Issue SCSI inquiry command for LUN discovery. |
| * |
| * Input: |
| * ha: adapter state pointer. |
| * fcport: FC port structure pointer. |
| * |
| * Context: |
| * Kernel context. |
| */ |
| static void |
| qla2x00_lun_discovery(scsi_qla_host_t *ha, fc_port_t *fcport) |
| { |
| inq_cmd_rsp_t *inq; |
| dma_addr_t inq_dma; |
| uint16_t lun; |
| |
| inq = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &inq_dma); |
| if (inq == NULL) { |
| qla_printk(KERN_WARNING, ha, |
| "Memory Allocation failed - INQ\n"); |
| return; |
| } |
| |
| /* Always add a fc_lun_t structure for lun 0 -- mid-layer requirement */ |
| qla2x00_add_lun(fcport, 0); |
| |
| /* If report LUN works, exit. */ |
| if (qla2x00_rpt_lun_discovery(ha, fcport, inq, inq_dma) != |
| QLA_SUCCESS) { |
| for (lun = 0; lun < ha->max_probe_luns; lun++) { |
| /* Configure LUN. */ |
| qla2x00_cfg_lun(ha, fcport, lun, inq, inq_dma); |
| } |
| } |
| |
| dma_pool_free(ha->s_dma_pool, inq, inq_dma); |
| } |
| |
| /* |
| * qla2x00_rpt_lun_discovery |
| * Issue SCSI report LUN command for LUN discovery. |
| * |
| * Input: |
| * ha: adapter state pointer. |
| * fcport: FC port structure pointer. |
| * |
| * Returns: |
| * qla2x00 local function return status code. |
| * |
| * Context: |
| * Kernel context. |
| */ |
| static int |
| qla2x00_rpt_lun_discovery(scsi_qla_host_t *ha, fc_port_t *fcport, |
| inq_cmd_rsp_t *inq, dma_addr_t inq_dma) |
| { |
| int rval; |
| uint32_t len, cnt; |
| uint16_t lun; |
| |
| /* Assume a failed status */ |
| rval = QLA_FUNCTION_FAILED; |
| |
| /* No point in continuing if the device doesn't support RLC */ |
| if ((fcport->flags & FCF_RLC_SUPPORT) == 0) |
| return (rval); |
| |
| rval = qla2x00_report_lun(ha, fcport); |
| if (rval != QLA_SUCCESS) |
| return (rval); |
| |
| /* Configure LUN list. */ |
| len = be32_to_cpu(ha->rlc_rsp->list.hdr.len); |
| len /= 8; |
| for (cnt = 0; cnt < len; cnt++) { |
| lun = CHAR_TO_SHORT(ha->rlc_rsp->list.lst[cnt].lsb, |
| ha->rlc_rsp->list.lst[cnt].msb.b); |
| |
| DEBUG3(printk("scsi(%ld): RLC lun = (%d)\n", ha->host_no, lun)); |
| |
| /* We only support 0 through MAX_LUNS-1 range */ |
| if (lun < MAX_LUNS) { |
| qla2x00_cfg_lun(ha, fcport, lun, inq, inq_dma); |
| } |
| } |
| atomic_set(&fcport->state, FCS_ONLINE); |
| |
| return (rval); |
| } |
| |
| /* |
| * qla2x00_report_lun |
| * Issue SCSI report LUN command. |
| * |
| * Input: |
| * ha: adapter state pointer. |
| * fcport: FC port structure pointer. |
| * |
| * Returns: |
| * qla2x00 local function return status code. |
| * |
| * Context: |
| * Kernel context. |
| */ |
| static int |
| qla2x00_report_lun(scsi_qla_host_t *ha, fc_port_t *fcport) |
| { |
| int rval; |
| uint16_t retries; |
| uint16_t comp_status; |
| uint16_t scsi_status; |
| rpt_lun_cmd_rsp_t *rlc; |
| dma_addr_t rlc_dma; |
| |
| rval = QLA_FUNCTION_FAILED; |
| rlc = ha->rlc_rsp; |
| rlc_dma = ha->rlc_rsp_dma; |
| |
| for (retries = 3; retries; retries--) { |
| memset(rlc, 0, sizeof(rpt_lun_cmd_rsp_t)); |
| rlc->p.cmd.entry_type = COMMAND_A64_TYPE; |
| rlc->p.cmd.entry_count = 1; |
| SET_TARGET_ID(ha, rlc->p.cmd.target, fcport->loop_id); |
| rlc->p.cmd.control_flags = |
| __constant_cpu_to_le16(CF_READ | CF_SIMPLE_TAG); |
| rlc->p.cmd.scsi_cdb[0] = REPORT_LUNS; |
| rlc->p.cmd.scsi_cdb[8] = MSB(sizeof(rpt_lun_lst_t)); |
| rlc->p.cmd.scsi_cdb[9] = LSB(sizeof(rpt_lun_lst_t)); |
| rlc->p.cmd.dseg_count = __constant_cpu_to_le16(1); |
| rlc->p.cmd.timeout = __constant_cpu_to_le16(10); |
| rlc->p.cmd.byte_count = |
| __constant_cpu_to_le32(sizeof(rpt_lun_lst_t)); |
| rlc->p.cmd.dseg_0_address[0] = cpu_to_le32( |
| LSD(rlc_dma + sizeof(sts_entry_t))); |
| rlc->p.cmd.dseg_0_address[1] = cpu_to_le32( |
| MSD(rlc_dma + sizeof(sts_entry_t))); |
| rlc->p.cmd.dseg_0_length = |
| __constant_cpu_to_le32(sizeof(rpt_lun_lst_t)); |
| |
| rval = qla2x00_issue_iocb(ha, rlc, rlc_dma, |
| sizeof(rpt_lun_cmd_rsp_t)); |
| |
| comp_status = le16_to_cpu(rlc->p.rsp.comp_status); |
| scsi_status = le16_to_cpu(rlc->p.rsp.scsi_status); |
| |
| if (rval != QLA_SUCCESS || comp_status != CS_COMPLETE || |
| scsi_status & SS_CHECK_CONDITION) { |
| |
| /* Device underrun, treat as OK. */ |
| if (rval == QLA_SUCCESS && |
| comp_status == CS_DATA_UNDERRUN && |
| scsi_status & SS_RESIDUAL_UNDER) { |
| |
| rval = QLA_SUCCESS; |
| break; |
| } |
| |
| DEBUG(printk("scsi(%ld): RLC failed to issue iocb! " |
| "fcport=[%04x/%p] rval=%x cs=%x ss=%x\n", |
| ha->host_no, fcport->loop_id, fcport, rval, |
| comp_status, scsi_status)); |
| |
| rval = QLA_FUNCTION_FAILED; |
| if (scsi_status & SS_CHECK_CONDITION) { |
| DEBUG2(printk("scsi(%ld): RLC " |
| "SS_CHECK_CONDITION Sense Data " |
| "%02x %02x %02x %02x %02x %02x %02x %02x\n", |
| ha->host_no, |
| rlc->p.rsp.req_sense_data[0], |
| rlc->p.rsp.req_sense_data[1], |
| rlc->p.rsp.req_sense_data[2], |
| rlc->p.rsp.req_sense_data[3], |
| rlc->p.rsp.req_sense_data[4], |
| rlc->p.rsp.req_sense_data[5], |
| rlc->p.rsp.req_sense_data[6], |
| rlc->p.rsp.req_sense_data[7])); |
| if (rlc->p.rsp.req_sense_data[2] == |
| ILLEGAL_REQUEST) { |
| fcport->flags &= ~(FCF_RLC_SUPPORT); |
| break; |
| } |
| } |
| } else { |
| break; |
| } |
| } |
| |
| return (rval); |
| } |
| |
| /* |
| * qla2x00_cfg_lun |
| * Configures LUN into fcport LUN list. |
| * |
| * Input: |
| * fcport: FC port structure pointer. |
| * lun: LUN number. |
| * |
| * Context: |
| * Kernel context. |
| */ |
| static fc_lun_t * |
| qla2x00_cfg_lun(scsi_qla_host_t *ha, fc_port_t *fcport, uint16_t lun, |
| inq_cmd_rsp_t *inq, dma_addr_t inq_dma) |
| { |
| fc_lun_t *fclun; |
| uint8_t device_type; |
| |
| /* Bypass LUNs that failed. */ |
| if (qla2x00_inquiry(ha, fcport, lun, inq, inq_dma) != QLA_SUCCESS) { |
| DEBUG2(printk("scsi(%ld): Failed inquiry - loop id=0x%04x " |
| "lun=%d\n", ha->host_no, fcport->loop_id, lun)); |
| |
| return (NULL); |
| } |
| device_type = (inq->inq[0] & 0x1f); |
| switch (device_type) { |
| case TYPE_DISK: |
| case TYPE_PROCESSOR: |
| case TYPE_WORM: |
| case TYPE_ROM: |
| case TYPE_SCANNER: |
| case TYPE_MOD: |
| case TYPE_MEDIUM_CHANGER: |
| case TYPE_ENCLOSURE: |
| case 0x20: |
| case 0x0C: |
| break; |
| case TYPE_TAPE: |
| fcport->flags |= FCF_TAPE_PRESENT; |
| break; |
| default: |
| DEBUG2(printk("scsi(%ld): Unsupported lun type -- " |
| "loop id=0x%04x lun=%d type=%x\n", |
| ha->host_no, fcport->loop_id, lun, device_type)); |
| return (NULL); |
| } |
| |
| fcport->device_type = device_type; |
| fclun = qla2x00_add_lun(fcport, lun); |
| |
| if (fclun != NULL) { |
| atomic_set(&fcport->state, FCS_ONLINE); |
| } |
| |
| return (fclun); |
| } |
| |
| /* |
| * qla2x00_add_lun |
| * Adds LUN to database |
| * |
| * Input: |
| * fcport: FC port structure pointer. |
| * lun: LUN number. |
| * |
| * Context: |
| * Kernel context. |
| */ |
| static fc_lun_t * |
| qla2x00_add_lun(fc_port_t *fcport, uint16_t lun) |
| { |
| int found; |
| fc_lun_t *fclun; |
| |
| if (fcport == NULL) { |
| DEBUG(printk("scsi: Unable to add lun to NULL port\n")); |
| return (NULL); |
| } |
| |
| /* Allocate LUN if not already allocated. */ |
| found = 0; |
| list_for_each_entry(fclun, &fcport->fcluns, list) { |
| if (fclun->lun == lun) { |
| found++; |
| break; |
| } |
| } |
| if (found) |
| return (NULL); |
| |
| fclun = kmalloc(sizeof(fc_lun_t), GFP_ATOMIC); |
| if (fclun == NULL) { |
| printk(KERN_WARNING |
| "%s(): Memory Allocation failed - FCLUN\n", |
| __func__); |
| return (NULL); |
| } |
| |
| /* Setup LUN structure. */ |
| memset(fclun, 0, sizeof(fc_lun_t)); |
| fclun->lun = lun; |
| fclun->fcport = fcport; |
| fclun->o_fcport = fcport; |
| fclun->device_type = fcport->device_type; |
| atomic_set(&fcport->state, FCS_UNCONFIGURED); |
| |
| list_add_tail(&fclun->list, &fcport->fcluns); |
| |
| return (fclun); |
| } |
| |
| /* |
| * qla2x00_inquiry |
| * Issue SCSI inquiry command. |
| * |
| * Input: |
| * ha = adapter block pointer. |
| * fcport = FC port structure pointer. |
| * |
| * Return: |
| * 0 - Success |
| * BIT_0 - error |
| * |
| * Context: |
| * Kernel context. |
| */ |
| static int |
| qla2x00_inquiry(scsi_qla_host_t *ha, |
| fc_port_t *fcport, uint16_t lun, inq_cmd_rsp_t *inq, dma_addr_t inq_dma) |
| { |
| int rval; |
| uint16_t retries; |
| uint16_t comp_status; |
| uint16_t scsi_status; |
| |
| rval = QLA_FUNCTION_FAILED; |
| |
| for (retries = 3; retries; retries--) { |
| memset(inq, 0, sizeof(inq_cmd_rsp_t)); |
| inq->p.cmd.entry_type = COMMAND_A64_TYPE; |
| inq->p.cmd.entry_count = 1; |
| inq->p.cmd.lun = cpu_to_le16(lun); |
| SET_TARGET_ID(ha, inq->p.cmd.target, fcport->loop_id); |
| inq->p.cmd.control_flags = |
| __constant_cpu_to_le16(CF_READ | CF_SIMPLE_TAG); |
| inq->p.cmd.scsi_cdb[0] = INQUIRY; |
| inq->p.cmd.scsi_cdb[4] = INQ_DATA_SIZE; |
| inq->p.cmd.dseg_count = __constant_cpu_to_le16(1); |
| inq->p.cmd.timeout = __constant_cpu_to_le16(10); |
| inq->p.cmd.byte_count = |
| __constant_cpu_to_le32(INQ_DATA_SIZE); |
| inq->p.cmd.dseg_0_address[0] = cpu_to_le32( |
| LSD(inq_dma + sizeof(sts_entry_t))); |
| inq->p.cmd.dseg_0_address[1] = cpu_to_le32( |
| MSD(inq_dma + sizeof(sts_entry_t))); |
| inq->p.cmd.dseg_0_length = |
| __constant_cpu_to_le32(INQ_DATA_SIZE); |
| |
| DEBUG5(printk("scsi(%ld): Lun Inquiry - fcport=[%04x/%p]," |
| " lun (%d)\n", |
| ha->host_no, fcport->loop_id, fcport, lun)); |
| |
| rval = qla2x00_issue_iocb(ha, inq, inq_dma, |
| sizeof(inq_cmd_rsp_t)); |
| |
| comp_status = le16_to_cpu(inq->p.rsp.comp_status); |
| scsi_status = le16_to_cpu(inq->p.rsp.scsi_status); |
| |
| DEBUG5(printk("scsi(%ld): lun (%d) inquiry - " |
| "inq[0]= 0x%x, comp status 0x%x, scsi status 0x%x, " |
| "rval=%d\n", |
| ha->host_no, lun, inq->inq[0], comp_status, scsi_status, |
| rval)); |
| |
| if (rval != QLA_SUCCESS || comp_status != CS_COMPLETE || |
| scsi_status & SS_CHECK_CONDITION) { |
| |
| DEBUG(printk("scsi(%ld): INQ failed to issue iocb! " |
| "fcport=[%04x/%p] rval=%x cs=%x ss=%x\n", |
| ha->host_no, fcport->loop_id, fcport, rval, |
| comp_status, scsi_status)); |
| |
| if (rval == QLA_SUCCESS) |
| rval = QLA_FUNCTION_FAILED; |
| |
| if (scsi_status & SS_CHECK_CONDITION) { |
| DEBUG2(printk("scsi(%ld): INQ " |
| "SS_CHECK_CONDITION Sense Data " |
| "%02x %02x %02x %02x %02x %02x %02x %02x\n", |
| ha->host_no, |
| inq->p.rsp.req_sense_data[0], |
| inq->p.rsp.req_sense_data[1], |
| inq->p.rsp.req_sense_data[2], |
| inq->p.rsp.req_sense_data[3], |
| inq->p.rsp.req_sense_data[4], |
| inq->p.rsp.req_sense_data[5], |
| inq->p.rsp.req_sense_data[6], |
| inq->p.rsp.req_sense_data[7])); |
| } |
| |
| /* Device underrun drop LUN. */ |
| if (comp_status == CS_DATA_UNDERRUN && |
| scsi_status & SS_RESIDUAL_UNDER) { |
| break; |
| } |
| } else { |
| break; |
| } |
| } |
| |
| return (rval); |
| } |
| |
| |
| /* |
| * qla2x00_configure_fabric |
| * Setup SNS devices with loop ID's. |
| * |
| * Input: |
| * ha = adapter block pointer. |
| * |
| * Returns: |
| * 0 = success. |
| * BIT_0 = error |
| */ |
| static int |
| qla2x00_configure_fabric(scsi_qla_host_t *ha) |
| { |
| int rval, rval2; |
| fc_port_t *fcport, *fcptemp; |
| uint16_t next_loopid; |
| uint16_t mb[MAILBOX_REGISTER_COUNT]; |
| LIST_HEAD(new_fcports); |
| |
| /* If FL port exists, then SNS is present */ |
| rval = qla2x00_get_port_name(ha, SNS_FL_PORT, NULL, 0); |
| if (rval != QLA_SUCCESS) { |
| DEBUG2(printk("scsi(%ld): MBC_GET_PORT_NAME Failed, No FL " |
| "Port\n", ha->host_no)); |
| |
| ha->device_flags &= ~SWITCH_FOUND; |
| return (QLA_SUCCESS); |
| } |
| |
| /* Mark devices that need re-synchronization. */ |
| rval2 = qla2x00_device_resync(ha); |
| if (rval2 == QLA_RSCNS_HANDLED) { |
| /* No point doing the scan, just continue. */ |
| return (QLA_SUCCESS); |
| } |
| do { |
| /* Ensure we are logged into the SNS. */ |
| qla2x00_login_fabric(ha, SIMPLE_NAME_SERVER, 0xff, 0xff, 0xfc, |
| mb, BIT_1 | BIT_0); |
| if (mb[0] != MBS_COMMAND_COMPLETE) { |
| DEBUG2(qla_printk(KERN_INFO, ha, |
| "Failed SNS login: loop_id=%x mb[0]=%x mb[1]=%x " |
| "mb[2]=%x mb[6]=%x mb[7]=%x\n", SIMPLE_NAME_SERVER, |
| mb[0], mb[1], mb[2], mb[6], mb[7])); |
| return (QLA_SUCCESS); |
| } |
| |
| if (test_and_clear_bit(REGISTER_FC4_NEEDED, &ha->dpc_flags)) { |
| if (qla2x00_rft_id(ha)) { |
| /* EMPTY */ |
| DEBUG2(printk("scsi(%ld): Register FC-4 " |
| "TYPE failed.\n", ha->host_no)); |
| } |
| if (qla2x00_rff_id(ha)) { |
| /* EMPTY */ |
| DEBUG2(printk("scsi(%ld): Register FC-4 " |
| "Features failed.\n", ha->host_no)); |
| } |
| if (qla2x00_rnn_id(ha)) { |
| /* EMPTY */ |
| DEBUG2(printk("scsi(%ld): Register Node Name " |
| "failed.\n", ha->host_no)); |
| } else if (qla2x00_rsnn_nn(ha)) { |
| /* EMPTY */ |
| DEBUG2(printk("scsi(%ld): Register Symbolic " |
| "Node Name failed.\n", ha->host_no)); |
| } |
| } |
| |
| rval = qla2x00_find_all_fabric_devs(ha, &new_fcports); |
| if (rval != QLA_SUCCESS) |
| break; |
| |
| /* |
| * Logout all previous fabric devices marked lost, except |
| * tape devices. |
| */ |
| list_for_each_entry(fcport, &ha->fcports, list) { |
| if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) |
| break; |
| |
| if ((fcport->flags & FCF_FABRIC_DEVICE) == 0) |
| continue; |
| |
| if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) { |
| qla2x00_mark_device_lost(ha, fcport, |
| ql2xplogiabsentdevice); |
| if (fcport->loop_id != FC_NO_LOOP_ID && |
| (fcport->flags & FCF_TAPE_PRESENT) == 0 && |
| fcport->port_type != FCT_INITIATOR && |
| fcport->port_type != FCT_BROADCAST) { |
| |
| qla2x00_fabric_logout(ha, |
| fcport->loop_id); |
| fcport->loop_id = FC_NO_LOOP_ID; |
| } |
| } |
| } |
| |
| /* Starting free loop ID. */ |
| next_loopid = ha->min_external_loopid; |
| |
| /* |
| * Scan through our port list and login entries that need to be |
| * logged in. |
| */ |
| list_for_each_entry(fcport, &ha->fcports, list) { |
| if (atomic_read(&ha->loop_down_timer) || |
| test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) |
| break; |
| |
| if ((fcport->flags & FCF_FABRIC_DEVICE) == 0 || |
| (fcport->flags & FCF_LOGIN_NEEDED) == 0) |
| continue; |
| |
| if (fcport->loop_id == FC_NO_LOOP_ID) { |
| fcport->loop_id = next_loopid; |
| rval = qla2x00_find_new_loop_id(ha, fcport); |
| if (rval != QLA_SUCCESS) { |
| /* Ran out of IDs to use */ |
| break; |
| } |
| } |
| |
| /* Login and update database */ |
| qla2x00_fabric_dev_login(ha, fcport, &next_loopid); |
| } |
| |
| /* Exit if out of loop IDs. */ |
| if (rval != QLA_SUCCESS) { |
| break; |
| } |
| |
| /* |
| * Login and add the new devices to our port list. |
| */ |
| list_for_each_entry_safe(fcport, fcptemp, &new_fcports, list) { |
| if (atomic_read(&ha->loop_down_timer) || |
| test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) |
| break; |
| |
| /* Find a new loop ID to use. */ |
| fcport->loop_id = next_loopid; |
| rval = qla2x00_find_new_loop_id(ha, fcport); |
| if (rval != QLA_SUCCESS) { |
| /* Ran out of IDs to use */ |
| break; |
| } |
| |
| /* Login and update database */ |
| qla2x00_fabric_dev_login(ha, fcport, &next_loopid); |
| |
| /* Remove device from the new list and add it to DB */ |
| list_del(&fcport->list); |
| list_add_tail(&fcport->list, &ha->fcports); |
| } |
| } while (0); |
| |
| /* Free all new device structures not processed. */ |
| list_for_each_entry_safe(fcport, fcptemp, &new_fcports, list) { |
| list_del(&fcport->list); |
| kfree(fcport); |
| } |
| |
| if (rval) { |
| DEBUG2(printk("scsi(%ld): Configure fabric error exit: " |
| "rval=%d\n", ha->host_no, rval)); |
| } |
| |
| return (rval); |
| } |
| |
| |
| /* |
| * qla2x00_find_all_fabric_devs |
| * |
| * Input: |
| * ha = adapter block pointer. |
| * dev = database device entry pointer. |
| * |
| * Returns: |
| * 0 = success. |
| * |
| * Context: |
| * Kernel context. |
| */ |
| static int |
| qla2x00_find_all_fabric_devs(scsi_qla_host_t *ha, struct list_head *new_fcports) |
| { |
| int rval; |
| uint16_t loop_id; |
| fc_port_t *fcport, *new_fcport, *fcptemp; |
| int found; |
| |
| sw_info_t *swl; |
| int swl_idx; |
| int first_dev, last_dev; |
| port_id_t wrap, nxt_d_id; |
| |
| rval = QLA_SUCCESS; |
| |
| /* Try GID_PT to get device list, else GAN. */ |
| swl = kmalloc(sizeof(sw_info_t) * MAX_FIBRE_DEVICES, GFP_ATOMIC); |
| if (swl == NULL) { |
| /*EMPTY*/ |
| DEBUG2(printk("scsi(%ld): GID_PT allocations failed, fallback " |
| "on GA_NXT\n", ha->host_no)); |
| } else { |
| memset(swl, 0, sizeof(sw_info_t) * MAX_FIBRE_DEVICES); |
| if (qla2x00_gid_pt(ha, swl) != QLA_SUCCESS) { |
| kfree(swl); |
| swl = NULL; |
| } else if (qla2x00_gpn_id(ha, swl) != QLA_SUCCESS) { |
| kfree(swl); |
| swl = NULL; |
| } else if (qla2x00_gnn_id(ha, swl) != QLA_SUCCESS) { |
| kfree(swl); |
| swl = NULL; |
| } |
| } |
| swl_idx = 0; |
| |
| /* Allocate temporary fcport for any new fcports discovered. */ |
| new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL); |
| if (new_fcport == NULL) { |
| if (swl) |
| kfree(swl); |
| return (QLA_MEMORY_ALLOC_FAILED); |
| } |
| new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED); |
| |
| /* Set start port ID scan at adapter ID. */ |
| first_dev = 1; |
| last_dev = 0; |
| |
| /* Starting free loop ID. */ |
| loop_id = ha->min_external_loopid; |
| |
| for (; loop_id <= ha->last_loop_id; loop_id++) { |
| if (RESERVED_LOOP_ID(loop_id)) |
| continue; |
| |
| if (atomic_read(&ha->loop_down_timer) || |
| test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) |
| break; |
| |
| if (swl != NULL) { |
| if (last_dev) { |
| wrap.b24 = new_fcport->d_id.b24; |
| } else { |
| new_fcport->d_id.b24 = swl[swl_idx].d_id.b24; |
| memcpy(new_fcport->node_name, |
| swl[swl_idx].node_name, WWN_SIZE); |
| memcpy(new_fcport->port_name, |
| swl[swl_idx].port_name, WWN_SIZE); |
| |
| if (swl[swl_idx].d_id.b.rsvd_1 != 0) { |
| last_dev = 1; |
| } |
| swl_idx++; |
| } |
| } else { |
| /* Send GA_NXT to the switch */ |
| rval = qla2x00_ga_nxt(ha, new_fcport); |
| if (rval != QLA_SUCCESS) { |
| qla_printk(KERN_WARNING, ha, |
| "SNS scan failed -- assuming zero-entry " |
| "result...\n"); |
| list_for_each_entry_safe(fcport, fcptemp, |
| new_fcports, list) { |
| list_del(&fcport->list); |
| kfree(fcport); |
| } |
| rval = QLA_SUCCESS; |
| break; |
| } |
| } |
| |
| /* If wrap on switch device list, exit. */ |
| if (first_dev) { |
| wrap.b24 = new_fcport->d_id.b24; |
| first_dev = 0; |
| } else if (new_fcport->d_id.b24 == wrap.b24) { |
| DEBUG2(printk("scsi(%ld): device wrap (%02x%02x%02x)\n", |
| ha->host_no, new_fcport->d_id.b.domain, |
| new_fcport->d_id.b.area, new_fcport->d_id.b.al_pa)); |
| break; |
| } |
| |
| /* Bypass if host adapter. */ |
| if (new_fcport->d_id.b24 == ha->d_id.b24) |
| continue; |
| |
| /* Bypass reserved domain fields. */ |
| if ((new_fcport->d_id.b.domain & 0xf0) == 0xf0) |
| continue; |
| |
| /* Locate matching device in database. */ |
| found = 0; |
| list_for_each_entry(fcport, &ha->fcports, list) { |
| if (memcmp(new_fcport->port_name, fcport->port_name, |
| WWN_SIZE)) |
| continue; |
| |
| found++; |
| |
| /* |
| * If address the same and state FCS_ONLINE, nothing |
| * changed. |
| */ |
| if (fcport->d_id.b24 == new_fcport->d_id.b24 && |
| atomic_read(&fcport->state) == FCS_ONLINE) { |
| break; |
| } |
| |
| /* |
| * If device was not a fabric device before. |
| */ |
| if ((fcport->flags & FCF_FABRIC_DEVICE) == 0) { |
| fcport->d_id.b24 = new_fcport->d_id.b24; |
| fcport->loop_id = FC_NO_LOOP_ID; |
| fcport->flags |= (FCF_FABRIC_DEVICE | |
| FCF_LOGIN_NEEDED); |
| fcport->flags &= ~FCF_PERSISTENT_BOUND; |
| break; |
| } |
| |
| /* |
| * Port ID changed or device was marked to be updated; |
| * Log it out if still logged in and mark it for |
| * relogin later. |
| */ |
| fcport->d_id.b24 = new_fcport->d_id.b24; |
| fcport->flags |= FCF_LOGIN_NEEDED; |
| if (fcport->loop_id != FC_NO_LOOP_ID && |
| (fcport->flags & FCF_TAPE_PRESENT) == 0 && |
| fcport->port_type != FCT_INITIATOR && |
| fcport->port_type != FCT_BROADCAST) { |
| qla2x00_fabric_logout(ha, fcport->loop_id); |
| fcport->loop_id = FC_NO_LOOP_ID; |
| } |
| |
| break; |
| } |
| |
| if (found) |
| continue; |
| |
| /* If device was not in our fcports list, then add it. */ |
| list_add_tail(&new_fcport->list, new_fcports); |
| |
| /* Allocate a new replacement fcport. */ |
| nxt_d_id.b24 = new_fcport->d_id.b24; |
| new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL); |
| if (new_fcport == NULL) { |
| if (swl) |
| kfree(swl); |
| return (QLA_MEMORY_ALLOC_FAILED); |
| } |
| new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED); |
| new_fcport->d_id.b24 = nxt_d_id.b24; |
| } |
| |
| if (swl) |
| kfree(swl); |
| |
| if (new_fcport) |
| kfree(new_fcport); |
| |
| if (!list_empty(new_fcports)) |
| ha->device_flags |= DFLG_FABRIC_DEVICES; |
| |
| return (rval); |
| } |
| |
| /* |
| * qla2x00_find_new_loop_id |
| * Scan through our port list and find a new usable loop ID. |
| * |
| * Input: |
| * ha: adapter state pointer. |
| * dev: port structure pointer. |
| * |
| * Returns: |
| * qla2x00 local function return status code. |
| * |
| * Context: |
| * Kernel context. |
| */ |
| int |
| qla2x00_find_new_loop_id(scsi_qla_host_t *ha, fc_port_t *dev) |
| { |
| int rval; |
| int found; |
| fc_port_t *fcport; |
| uint16_t first_loop_id; |
| |
| rval = QLA_SUCCESS; |
| |
| /* Save starting loop ID. */ |
| first_loop_id = dev->loop_id; |
| |
| for (;;) { |
| /* Skip loop ID if already used by adapter. */ |
| if (dev->loop_id == ha->loop_id) { |
| dev->loop_id++; |
| } |
| |
| /* Skip reserved loop IDs. */ |
| while (RESERVED_LOOP_ID(dev->loop_id)) { |
| dev->loop_id++; |
| } |
| |
| /* Reset loop ID if passed the end. */ |
| if (dev->loop_id > ha->last_loop_id) { |
| /* first loop ID. */ |
| dev->loop_id = ha->min_external_loopid; |
| } |
| |
| /* Check for loop ID being already in use. */ |
| found = 0; |
| fcport = NULL; |
| list_for_each_entry(fcport, &ha->fcports, list) { |
| if (fcport->loop_id == dev->loop_id && fcport != dev) { |
| /* ID possibly in use */ |
| found++; |
| break; |
| } |
| } |
| |
| /* If not in use then it is free to use. */ |
| if (!found) { |
| break; |
| } |
| |
| /* ID in use. Try next value. */ |
| dev->loop_id++; |
| |
| /* If wrap around. No free ID to use. */ |
| if (dev->loop_id == first_loop_id) { |
| dev->loop_id = FC_NO_LOOP_ID; |
| rval = QLA_FUNCTION_FAILED; |
| break; |
| } |
| } |
| |
| return (rval); |
| } |
| |
| /* |
| * qla2x00_device_resync |
| * Marks devices in the database that needs resynchronization. |
| * |
| * Input: |
| * ha = adapter block pointer. |
| * |
| * Context: |
| * Kernel context. |
| */ |
| static int |
| qla2x00_device_resync(scsi_qla_host_t *ha) |
| { |
| int rval; |
| int rval2; |
| uint32_t mask; |
| fc_port_t *fcport; |
| uint32_t rscn_entry; |
| uint8_t rscn_out_iter; |
| uint8_t format; |
| port_id_t d_id; |
| |
| rval = QLA_RSCNS_HANDLED; |
| |
| while (ha->rscn_out_ptr != ha->rscn_in_ptr || |
| ha->flags.rscn_queue_overflow) { |
| |
| rscn_entry = ha->rscn_queue[ha->rscn_out_ptr]; |
| format = MSB(MSW(rscn_entry)); |
| d_id.b.domain = LSB(MSW(rscn_entry)); |
| d_id.b.area = MSB(LSW(rscn_entry)); |
| d_id.b.al_pa = LSB(LSW(rscn_entry)); |
| |
| DEBUG(printk("scsi(%ld): RSCN queue entry[%d] = " |
| "[%02x/%02x%02x%02x].\n", |
| ha->host_no, ha->rscn_out_ptr, format, d_id.b.domain, |
| d_id.b.area, d_id.b.al_pa)); |
| |
| ha->rscn_out_ptr++; |
| if (ha->rscn_out_ptr == MAX_RSCN_COUNT) |
| ha->rscn_out_ptr = 0; |
| |
| /* Skip duplicate entries. */ |
| for (rscn_out_iter = ha->rscn_out_ptr; |
| !ha->flags.rscn_queue_overflow && |
| rscn_out_iter != ha->rscn_in_ptr; |
| rscn_out_iter = (rscn_out_iter == |
| (MAX_RSCN_COUNT - 1)) ? 0: rscn_out_iter + 1) { |
| |
| if (rscn_entry != ha->rscn_queue[rscn_out_iter]) |
| break; |
| |
| DEBUG(printk("scsi(%ld): Skipping duplicate RSCN queue " |
| "entry found at [%d].\n", ha->host_no, |
| rscn_out_iter)); |
| |
| ha->rscn_out_ptr = rscn_out_iter; |
| } |
| |
| /* Queue overflow, set switch default case. */ |
| if (ha->flags.rscn_queue_overflow) { |
| DEBUG(printk("scsi(%ld): device_resync: rscn " |
| "overflow.\n", ha->host_no)); |
| |
| format = 3; |
| ha->flags.rscn_queue_overflow = 0; |
| } |
| |
| switch (format) { |
| case 0: |
| if (!IS_QLA2100(ha) && !IS_QLA2200(ha) && |
| !IS_QLA6312(ha) && !IS_QLA6322(ha) && |
| ha->flags.init_done) { |
| /* Handle port RSCN via asyncronous IOCBs */ |
| rval2 = qla2x00_handle_port_rscn(ha, rscn_entry, |
| NULL, 0); |
| if (rval2 == QLA_SUCCESS) |
| continue; |
| } |
| mask = 0xffffff; |
| break; |
| case 1: |
| mask = 0xffff00; |
| break; |
| case 2: |
| mask = 0xff0000; |
| break; |
| default: |
| mask = 0x0; |
| d_id.b24 = 0; |
| ha->rscn_out_ptr = ha->rscn_in_ptr; |
| break; |
| } |
| |
| rval = QLA_SUCCESS; |
| |
| /* Abort any outstanding IO descriptors. */ |
| if (!IS_QLA2100(ha) && !IS_QLA2200(ha)) |
| qla2x00_cancel_io_descriptors(ha); |
| |
| list_for_each_entry(fcport, &ha->fcports, list) { |
| if ((fcport->flags & FCF_FABRIC_DEVICE) == 0 || |
| (fcport->d_id.b24 & mask) != d_id.b24 || |
| fcport->port_type == FCT_BROADCAST) |
| continue; |
| |
| if (atomic_read(&fcport->state) == FCS_ONLINE) { |
| if (format != 3 || |
| fcport->port_type != FCT_INITIATOR) { |
| atomic_set(&fcport->state, |
| FCS_DEVICE_LOST); |
| } |
| } |
| fcport->flags &= ~FCF_FARP_DONE; |
| } |
| } |
| return (rval); |
| } |
| |
| /* |
| * qla2x00_fabric_dev_login |
| * Login fabric target device and update FC port database. |
| * |
| * Input: |
| * ha: adapter state pointer. |
| * fcport: port structure list pointer. |
| * next_loopid: contains value of a new loop ID that can be used |
| * by the next login attempt. |
| * |
| * Returns: |
| * qla2x00 local function return status code. |
| * |
| * Context: |
| * Kernel context. |
| */ |
| static int |
| qla2x00_fabric_dev_login(scsi_qla_host_t *ha, fc_port_t *fcport, |
| uint16_t *next_loopid) |
| { |
| int rval; |
| int retry; |
| |
| rval = QLA_SUCCESS; |
| retry = 0; |
| |
| rval = qla2x00_fabric_login(ha, fcport, next_loopid); |
| if (rval == QLA_SUCCESS) { |
| rval = qla2x00_get_port_database(ha, fcport, 0); |
| if (rval != QLA_SUCCESS) { |
| qla2x00_fabric_logout(ha, fcport->loop_id); |
| } else { |
| qla2x00_update_fcport(ha, fcport); |
| } |
| } |
| |
| return (rval); |
| } |
| |
| /* |
| * qla2x00_fabric_login |
| * Issue fabric login command. |
| * |
| * Input: |
| * ha = adapter block pointer. |
| * device = pointer to FC device type structure. |
| * |
| * Returns: |
| * 0 - Login successfully |
| * 1 - Login failed |
| * 2 - Initiator device |
| * 3 - Fatal error |
| */ |
| int |
| qla2x00_fabric_login(scsi_qla_host_t *ha, fc_port_t *fcport, |
| uint16_t *next_loopid) |
| { |
| int rval; |
| int retry; |
| uint16_t tmp_loopid; |
| uint16_t mb[MAILBOX_REGISTER_COUNT]; |
| |
| retry = 0; |
| tmp_loopid = 0; |
| |
| for (;;) { |
| DEBUG(printk("scsi(%ld): Trying Fabric Login w/loop id 0x%04x " |
| "for port %02x%02x%02x.\n", |
| ha->host_no, fcport->loop_id, fcport->d_id.b.domain, |
| fcport->d_id.b.area, fcport->d_id.b.al_pa)); |
| |
| /* Login fcport on switch. */ |
| qla2x00_login_fabric(ha, fcport->loop_id, |
| fcport->d_id.b.domain, fcport->d_id.b.area, |
| fcport->d_id.b.al_pa, mb, BIT_0); |
| if (mb[0] == MBS_PORT_ID_USED) { |
| /* |
| * Device has another loop ID. The firmware team |
| * recommends us to perform an implicit login with the |
| * specified ID again. The ID we just used is save here |
| * so we return with an ID that can be tried by the |
| * next login. |
| */ |
| retry++; |
| tmp_loopid = fcport->loop_id; |
| fcport->loop_id = mb[1]; |
| |
| DEBUG(printk("Fabric Login: port in use - next " |
| "loop id=0x%04x, port Id=%02x%02x%02x.\n", |
| fcport->loop_id, fcport->d_id.b.domain, |
| fcport->d_id.b.area, fcport->d_id.b.al_pa)); |
| |
| } else if (mb[0] == MBS_COMMAND_COMPLETE) { |
| /* |
| * Login succeeded. |
| */ |
| if (retry) { |
| /* A retry occurred before. */ |
| *next_loopid = tmp_loopid; |
| } else { |
| /* |
| * No retry occurred before. Just increment the |
| * ID value for next login. |
| */ |
| *next_loopid = (fcport->loop_id + 1); |
| } |
| |
| if (mb[1] & BIT_0) { |
| fcport->port_type = FCT_INITIATOR; |
| } else { |
| fcport->port_type = FCT_TARGET; |
| if (mb[1] & BIT_1) { |
| fcport->flags |= FCF_TAPE_PRESENT; |
| } |
| } |
| |
| rval = QLA_SUCCESS; |
| break; |
| } else if (mb[0] == MBS_LOOP_ID_USED) { |
| /* |
| * Loop ID already used, try next loop ID. |
| */ |
| fcport->loop_id++; |
| rval = qla2x00_find_new_loop_id(ha, fcport); |
| if (rval != QLA_SUCCESS) { |
| /* Ran out of loop IDs to use */ |
| break; |
| } |
| } else if (mb[0] == MBS_COMMAND_ERROR) { |
| /* |
| * Firmware possibly timed out during login. If NO |
| * retries are left to do then the device is declared |
| * dead. |
| */ |
| *next_loopid = fcport->loop_id; |
| qla2x00_fabric_logout(ha, fcport->loop_id); |
| qla2x00_mark_device_lost(ha, fcport, 1); |
| |
| rval = 1; |
| break; |
| } else { |
| /* |
| * unrecoverable / not handled error |
| */ |
| DEBUG2(printk("%s(%ld): failed=%x port_id=%02x%02x%02x " |
| "loop_id=%x jiffies=%lx.\n", |
| __func__, ha->host_no, mb[0], |
| fcport->d_id.b.domain, fcport->d_id.b.area, |
| fcport->d_id.b.al_pa, fcport->loop_id, jiffies)); |
| |
| *next_loopid = fcport->loop_id; |
| qla2x00_fabric_logout(ha, fcport->loop_id); |
| fcport->loop_id = FC_NO_LOOP_ID; |
| atomic_set(&fcport->state, FCS_DEVICE_DEAD); |
| |
| rval = 3; |
| break; |
| } |
| } |
| |
| return (rval); |
| } |
| |
| /* |
| * qla2x00_local_device_login |
| * Issue local device login command. |
| * |
| * Input: |
| * ha = adapter block pointer. |
| * loop_id = loop id of device to login to. |
| * |
| * Returns (Where's the #define!!!!): |
| * 0 - Login successfully |
| * 1 - Login failed |
| * 3 - Fatal error |
| */ |
| int |
| qla2x00_local_device_login(scsi_qla_host_t *ha, uint16_t loop_id) |
| { |
| int rval; |
| uint16_t mb[MAILBOX_REGISTER_COUNT]; |
| |
| memset(mb, 0, sizeof(mb)); |
| rval = qla2x00_login_local_device(ha, loop_id, mb, BIT_0); |
| if (rval == QLA_SUCCESS) { |
| /* Interrogate mailbox registers for any errors */ |
| if (mb[0] == MBS_COMMAND_ERROR) |
| rval = 1; |
| else if (mb[0] == MBS_COMMAND_PARAMETER_ERROR) |
| /* device not in PCB table */ |
| rval = 3; |
| } |
| |
| return (rval); |
| } |
| |
| /* |
| * qla2x00_loop_resync |
| * Resync with fibre channel devices. |
| * |
| * Input: |
| * ha = adapter block pointer. |
| * |
| * Returns: |
| * 0 = success |
| */ |
| int |
| qla2x00_loop_resync(scsi_qla_host_t *ha) |
| { |
| int rval; |
| uint32_t wait_time; |
| |
| rval = QLA_SUCCESS; |
| |
| atomic_set(&ha->loop_state, LOOP_UPDATE); |
| qla2x00_stats.loop_resync++; |
| clear_bit(ISP_ABORT_RETRY, &ha->dpc_flags); |
| if (ha->flags.online) { |
| if (!(rval = qla2x00_fw_ready(ha))) { |
| /* Wait at most MAX_TARGET RSCNs for a stable link. */ |
| wait_time = 256; |
| do { |
| /* v2.19.05b6 */ |
| atomic_set(&ha->loop_state, LOOP_UPDATE); |
| |
| /* |
| * Issue marker command only when we are going |
| * to start the I/O . |
| */ |
| ha->marker_needed = 1; |
| |
| /* Remap devices on Loop. */ |
| clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags); |
| |
| qla2x00_configure_loop(ha); |
| wait_time--; |
| } while (!atomic_read(&ha->loop_down_timer) && |
| !(test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) && |
| wait_time && |
| (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))); |
| } |
| qla2x00_restart_queues(ha, 1); |
| } |
| |
| if (test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) { |
| return (QLA_FUNCTION_FAILED); |
| } |
| |
| if (rval) { |
| DEBUG2_3(printk("%s(): **** FAILED ****\n", __func__)); |
| } |
| |
| return (rval); |
| } |
| |
| /* |
| * qla2x00_restart_queues |
| * Restart device queues. |
| * |
| * Input: |
| * ha = adapter block pointer. |
| * |
| * Context: |
| * Kernel/Interrupt context. |
| */ |
| void |
| qla2x00_restart_queues(scsi_qla_host_t *ha, uint8_t flush) |
| { |
| srb_t *sp; |
| int retry_q_cnt = 0; |
| int pending_q_cnt = 0; |
| struct list_head *list, *temp; |
| unsigned long flags = 0; |
| |
| clear_bit(RESTART_QUEUES_NEEDED, &ha->dpc_flags); |
| |
| /* start pending queue */ |
| pending_q_cnt = ha->qthreads; |
| if (flush) { |
| spin_lock_irqsave(&ha->list_lock,flags); |
| list_for_each_safe(list, temp, &ha->pending_queue) { |
| sp = list_entry(list, srb_t, list); |
| |
| if ((sp->flags & SRB_TAPE)) |
| continue; |
| |
| /* |
| * When time expire return request back to OS as BUSY |
| */ |
| __del_from_pending_queue(ha, sp); |
| sp->cmd->result = DID_BUS_BUSY << 16; |
| sp->cmd->host_scribble = (unsigned char *)NULL; |
| __add_to_done_queue(ha, sp); |
| } |
| spin_unlock_irqrestore(&ha->list_lock, flags); |
| } else { |
| if (!list_empty(&ha->pending_queue)) |
| qla2x00_next(ha); |
| } |
| |
| /* |
| * Clear out our retry queue |
| */ |
| if (flush) { |
| spin_lock_irqsave(&ha->list_lock, flags); |
| retry_q_cnt = ha->retry_q_cnt; |
| list_for_each_safe(list, temp, &ha->retry_queue) { |
| sp = list_entry(list, srb_t, list); |
| /* when time expire return request back to OS as BUSY */ |
| __del_from_retry_queue(ha, sp); |
| sp->cmd->result = DID_BUS_BUSY << 16; |
| sp->cmd->host_scribble = (unsigned char *)NULL; |
| __add_to_done_queue(ha, sp); |
| } |
| spin_unlock_irqrestore(&ha->list_lock, flags); |
| |
| DEBUG2(printk("%s(%ld): callback %d commands.\n", |
| __func__, |
| ha->host_no, |
| retry_q_cnt);) |
| } |
| |
| DEBUG2(printk("%s(%ld): active=%ld, retry=%d, pending=%d, " |
| "done=%ld, scsi retry=%d commands.\n", |
| __func__, |
| ha->host_no, |
| ha->actthreads, |
| ha->retry_q_cnt, |
| pending_q_cnt, |
| ha->done_q_cnt, |
| ha->scsi_retry_q_cnt);) |
| |
| if (!list_empty(&ha->done_queue)) |
| qla2x00_done(ha); |
| } |
| |
| void |
| qla2x00_rescan_fcports(scsi_qla_host_t *ha) |
| { |
| int rescan_done; |
| fc_port_t *fcport; |
| |
| rescan_done = 0; |
| list_for_each_entry(fcport, &ha->fcports, list) { |
| if ((fcport->flags & FCF_RESCAN_NEEDED) == 0) |
| continue; |
| |
| qla2x00_update_fcport(ha, fcport); |
| fcport->flags &= ~FCF_RESCAN_NEEDED; |
| |
| rescan_done = 1; |
| } |
| qla2x00_probe_for_all_luns(ha); |
| |
| /* Update OS target and lun structures if necessary. */ |
| if (rescan_done) { |
| qla2x00_config_os(ha); |
| } |
| } |
| |
| |
| /* |
| * qla2x00_config_os |
| * Setup OS target and LUN structures. |
| * |
| * Input: |
| * ha = adapter state pointer. |
| * |
| * Context: |
| * Kernel context. |
| */ |
| static void |
| qla2x00_config_os(scsi_qla_host_t *ha) |
| { |
| fc_port_t *fcport; |
| fc_lun_t *fclun; |
| os_tgt_t *tq; |
| uint16_t tgt; |
| |
| |
| for (tgt = 0; tgt < MAX_TARGETS; tgt++) { |
| if ((tq = TGT_Q(ha, tgt)) == NULL) |
| continue; |
| |
| clear_bit(TQF_ONLINE, &tq->flags); |
| } |
| |
| list_for_each_entry(fcport, &ha->fcports, list) { |
| if (atomic_read(&fcport->state) != FCS_ONLINE || |
| fcport->port_type == FCT_INITIATOR || |
| fcport->port_type == FCT_BROADCAST) { |
| fcport->os_target_id = MAX_TARGETS; |
| continue; |
| } |
| |
| if (fcport->flags & FCF_FO_MASKED) { |
| continue; |
| } |
| |
| /* Bind FC port to OS target number. */ |
| if (qla2x00_fcport_bind(ha, fcport) == MAX_TARGETS) { |
| continue; |
| } |
| |
| /* Bind FC LUN to OS LUN number. */ |
| list_for_each_entry(fclun, &fcport->fcluns, list) { |
| qla2x00_fclun_bind(ha, fcport, fclun); |
| } |
| } |
| } |
| |
| /* |
| * qla2x00_fcport_bind |
| * Locates a target number for FC port. |
| * |
| * Input: |
| * ha = adapter state pointer. |
| * fcport = FC port structure pointer. |
| * |
| * Returns: |
| * target number |
| * |
| * Context: |
| * Kernel context. |
| */ |
| static uint16_t |
| qla2x00_fcport_bind(scsi_qla_host_t *ha, fc_port_t *fcport) |
| { |
| int found; |
| uint16_t tgt; |
| os_tgt_t *tq; |
| |
| /* Check for persistent binding. */ |
| for (tgt = 0; tgt < MAX_TARGETS; tgt++) { |
| if ((tq = TGT_Q(ha, tgt)) == NULL) |
| continue; |
| |
| found = 0; |
| switch (ha->binding_type) { |
| case BIND_BY_PORT_ID: |
| if (fcport->d_id.b24 == tq->d_id.b24) { |
| memcpy(tq->node_name, fcport->node_name, |
| WWN_SIZE); |
| memcpy(tq->port_name, fcport->port_name, |
| WWN_SIZE); |
| found++; |
| } |
| break; |
| case BIND_BY_PORT_NAME: |
| if (memcmp(fcport->port_name, tq->port_name, |
| WWN_SIZE) == 0) { |
| /* |
| * In case of persistent binding, update the |
| * WWNN. |
| */ |
| memcpy(tq->node_name, fcport->node_name, |
| WWN_SIZE); |
| found++; |
| } |
| break; |
| } |
| if (found) |
| break; |
| } |
| |
| /* TODO: honor the ConfigRequired flag */ |
| if (tgt == MAX_TARGETS) { |
| /* Check if targetID 0 available. */ |
| tgt = 0; |
| |
| if (TGT_Q(ha, tgt) != NULL) { |
| /* Locate first free target for device. */ |
| for (tgt = 0; tgt < MAX_TARGETS; tgt++) { |
| if (TGT_Q(ha, tgt) == NULL) { |
| break; |
| } |
| } |
| } |
| if (tgt != MAX_TARGETS) { |
| if ((tq = qla2x00_tgt_alloc(ha, tgt)) != NULL) { |
| memcpy(tq->node_name, fcport->node_name, |
| WWN_SIZE); |
| memcpy(tq->port_name, fcport->port_name, |
| WWN_SIZE); |
| tq->d_id.b24 = fcport->d_id.b24; |
| } |
| } |
| } |
| |
| /* Reset target numbers incase it changed. */ |
| fcport->os_target_id = tgt; |
| if (tgt != MAX_TARGETS && tq != NULL) { |
| DEBUG2(printk("scsi(%ld): Assigning target ID=%02d @ %p to " |
| "loop id=0x%04x, port state=0x%x, port down retry=%d\n", |
| ha->host_no, tgt, tq, fcport->loop_id, |
| atomic_read(&fcport->state), |
| atomic_read(&fcport->port_down_timer))); |
| |
| fcport->tgt_queue = tq; |
| fcport->flags |= FCF_PERSISTENT_BOUND; |
| tq->fcport = fcport; |
| set_bit(TQF_ONLINE, &tq->flags); |
| tq->port_down_retry_count = ha->port_down_retry_count; |
| } |
| |
| if (tgt == MAX_TARGETS) { |
| qla_printk(KERN_WARNING, ha, |
| "Unable to bind fcport, loop_id=%x\n", fcport->loop_id); |
| } |
| |
| return (tgt); |
| } |
| |
| /* |
| * qla2x00_fclun_bind |
| * Binds all FC device LUNS to OS LUNS. |
| * |
| * Input: |
| * ha: adapter state pointer. |
| * fcport: FC port structure pointer. |
| * |
| * Returns: |
| * target number |
| * |
| * Context: |
| * Kernel context. |
| */ |
| static os_lun_t * |
| qla2x00_fclun_bind(scsi_qla_host_t *ha, fc_port_t *fcport, fc_lun_t *fclun) |
| { |
| os_lun_t *lq; |
| uint16_t tgt; |
| uint16_t lun; |
| |
| tgt = fcport->os_target_id; |
| lun = fclun->lun; |
| |
| /* Allocate LUNs */ |
| if (lun >= MAX_LUNS) { |
| DEBUG2(printk("scsi(%ld): Unable to bind lun, invalid " |
| "lun=(%x).\n", ha->host_no, lun)); |
| return (NULL); |
| } |
| |
| /* Always alloc LUN 0 so kernel will scan past LUN 0. */ |
| if (lun != 0 && (EXT_IS_LUN_BIT_SET(&(fcport->lun_mask), lun))) { |
| return (NULL); |
| } |
| |
| if ((lq = qla2x00_lun_alloc(ha, tgt, lun)) == NULL) { |
| qla_printk(KERN_WARNING, ha, |
| "Unable to bind fclun, loop_id=%x lun=%x\n", |
| fcport->loop_id, lun); |
| return (NULL); |
| } |
| |
| lq->fclun = fclun; |
| |
| return (lq); |
| } |
| |
| /* |
| * qla2x00_tgt_alloc |
| * Allocate and pre-initialize target queue. |
| * |
| * Input: |
| * ha = adapter block pointer. |
| * t = SCSI target number. |
| * |
| * Returns: |
| * NULL = failure |
| * |
| * Context: |
| * Kernel context. |
| */ |
| static os_tgt_t * |
| qla2x00_tgt_alloc(scsi_qla_host_t *ha, uint16_t tgt) |
| { |
| os_tgt_t *tq; |
| |
| /* |
| * If SCSI addressing OK, allocate TGT queue and lock. |
| */ |
| if (tgt >= MAX_TARGETS) { |
| DEBUG2(printk("scsi(%ld): Unable to allocate target, invalid " |
| "target number %d.\n", ha->host_no, tgt)); |
| return (NULL); |
| } |
| |
| tq = TGT_Q(ha, tgt); |
| if (tq == NULL) { |
| tq = kmalloc(sizeof(os_tgt_t), GFP_ATOMIC); |
| if (tq != NULL) { |
| DEBUG2(printk("scsi(%ld): Alloc Target %d @ %p\n", |
| ha->host_no, tgt, tq)); |
| |
| memset(tq, 0, sizeof(os_tgt_t)); |
| tq->ha = ha; |
| |
| TGT_Q(ha, tgt) = tq; |
| } |
| } |
| if (tq != NULL) { |
| tq->port_down_retry_count = ha->port_down_retry_count; |
| } else { |
| qla_printk(KERN_WARNING, ha, |
| "Unable to allocate target.\n"); |
| ha->mem_err++; |
| } |
| |
| return (tq); |
| } |
| |
| /* |
| * qla2x00_tgt_free |
| * Frees target and LUN queues. |
| * |
| * Input: |
| * ha = adapter block pointer. |
| * t = SCSI target number. |
| * |
| * Context: |
| * Kernel context. |
| */ |
| void |
| qla2x00_tgt_free(scsi_qla_host_t *ha, uint16_t tgt) |
| { |
| os_tgt_t *tq; |
| uint16_t lun; |
| |
| /* |
| * If SCSI addressing OK, allocate TGT queue and lock. |
| */ |
| if (tgt >= MAX_TARGETS) { |
| DEBUG2(printk("scsi(%ld): Unable to de-allocate target, " |
| "invalid target number %d.\n", ha->host_no, tgt)); |
| |
| return; |
| } |
| |
| tq = TGT_Q(ha, tgt); |
| if (tq != NULL) { |
| TGT_Q(ha, tgt) = NULL; |
| |
| /* Free LUN structures. */ |
| for (lun = 0; lun < MAX_LUNS; lun++) |
| qla2x00_lun_free(ha, tgt, lun); |
| |
| kfree(tq); |
| } |
| |
| return; |
| } |
| |
| /* |
| * qla2x00_lun_alloc |
| * Allocate and initialize LUN queue. |
| * |
| * Input: |
| * ha = adapter block pointer. |
| * t = SCSI target number. |
| * l = LUN number. |
| * |
| * Returns: |
| * NULL = failure |
| * |
| * Context: |
| * Kernel context. |
| */ |
| static os_lun_t * |
| qla2x00_lun_alloc(scsi_qla_host_t *ha, uint16_t tgt, uint16_t lun) |
| { |
| os_lun_t *lq; |
| |
| /* |
| * If SCSI addressing OK, allocate LUN queue. |
| */ |
| if (tgt >= MAX_TARGETS || lun >= MAX_LUNS || TGT_Q(ha, tgt) == NULL) { |
| DEBUG2(printk("scsi(%ld): Unable to allocate lun, invalid " |
| "parameter.\n", ha->host_no)); |
| |
| return (NULL); |
| } |
| |
| lq = LUN_Q(ha, tgt, lun); |
| if (lq == NULL) { |
| lq = kmalloc(sizeof(os_lun_t), GFP_ATOMIC); |
| if (lq != NULL) { |
| DEBUG2(printk("scsi(%ld): Alloc Lun %d @ tgt %d.\n", |
| ha->host_no, lun, tgt)); |
| |
| memset(lq, 0, sizeof(os_lun_t)); |
| LUN_Q(ha, tgt, lun) = lq; |
| |
| /* |
| * The following lun queue initialization code |
| * must be duplicated in alloc_ioctl_mem function |
| * for ioctl_lq. |
| */ |
| lq->q_state = LUN_STATE_READY; |
| spin_lock_init(&lq->q_lock); |
| } |
| } |
| |
| if (lq == NULL) { |
| qla_printk(KERN_WARNING, ha, "Unable to allocate lun.\n"); |
| } |
| |
| return (lq); |
| } |
| |
| /* |
| * qla2x00_lun_free |
| * Frees LUN queue. |
| * |
| * Input: |
| * ha = adapter block pointer. |
| * t = SCSI target number. |
| * |
| * Context: |
| * Kernel context. |
| */ |
| static void |
| qla2x00_lun_free(scsi_qla_host_t *ha, uint16_t tgt, uint16_t lun) |
| { |
| os_lun_t *lq; |
| |
| /* |
| * If SCSI addressing OK, allocate TGT queue and lock. |
| */ |
| if (tgt >= MAX_TARGETS || lun >= MAX_LUNS) { |
| DEBUG2(printk("scsi(%ld): Unable to deallocate lun, invalid " |
| "parameter.\n", ha->host_no)); |
| |
| return; |
| } |
| |
| if (TGT_Q(ha, tgt) != NULL && (lq = LUN_Q(ha, tgt, lun)) != NULL) { |
| LUN_Q(ha, tgt, lun) = NULL; |
| kfree(lq); |
| } |
| |
| return; |
| } |
| |
| /* |
| * qla2x00_abort_isp |
| * Resets ISP and aborts all outstanding commands. |
| * |
| * Input: |
| * ha = adapter block pointer. |
| * |
| * Returns: |
| * 0 = success |
| */ |
| int |
| qla2x00_abort_isp(scsi_qla_host_t *ha) |
| { |
| unsigned long flags = 0; |
| uint16_t cnt; |
| srb_t *sp; |
| uint8_t status = 0; |
| |
| if (ha->flags.online) { |
| ha->flags.online = 0; |
| clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); |
| qla2x00_stats.ispAbort++; |
| ha->total_isp_aborts++; /* used by ioctl */ |
| ha->sns_retry_cnt = 0; |
| |
| qla_printk(KERN_INFO, ha, |
| "Performing ISP error recovery - ha= %p.\n", ha); |
| qla2x00_reset_chip(ha); |
| |
| atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME); |
| if (atomic_read(&ha->loop_state) != LOOP_DOWN) { |
| atomic_set(&ha->loop_state, LOOP_DOWN); |
| qla2x00_mark_all_devices_lost(ha); |
| } else { |
| if (!atomic_read(&ha->loop_down_timer)) |
| atomic_set(&ha->loop_down_timer, |
| LOOP_DOWN_TIME); |
| } |
| |
| spin_lock_irqsave(&ha->hardware_lock, flags); |
| /* Requeue all commands in outstanding command list. */ |
| for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) { |
| sp = ha->outstanding_cmds[cnt]; |
| if (sp) { |
| ha->outstanding_cmds[cnt] = NULL; |
| if (ha->actthreads) |
| ha->actthreads--; |
| sp->lun_queue->out_cnt--; |
| |
| /* |
| * Set the cmd host_byte status depending on |
| * whether the scsi_error_handler is |
| * active or not. |
| */ |
| if (sp->flags & SRB_TAPE) { |
| sp->cmd->result = DID_NO_CONNECT << 16; |
| } else { |
| if (ha->host->eh_active != EH_ACTIVE) |
| sp->cmd->result = |
| DID_BUS_BUSY << 16; |
| else |
| sp->cmd->result = |
| DID_RESET << 16; |
| } |
| sp->flags = 0; |
| sp->cmd->host_scribble = (unsigned char *)NULL; |
| add_to_done_queue(ha, sp); |
| } |
| } |
| spin_unlock_irqrestore(&ha->hardware_lock, flags); |
| |
| qla2x00_nvram_config(ha); |
| |
| if (!qla2x00_restart_isp(ha)) { |
| clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags); |
| |
| if (!atomic_read(&ha->loop_down_timer)) { |
| /* |
| * Issue marker command only when we are going |
| * to start the I/O . |
| */ |
| ha->marker_needed = 1; |
| } |
| |
| ha->flags.online = 1; |
| |
| /* Enable ISP interrupts. */ |
| qla2x00_enable_intrs(ha); |
| |
| /* v2.19.5b6 Return all commands */ |
| qla2x00_abort_queues(ha, 1); |
| |
| /* Restart queues that may have been stopped. */ |
| qla2x00_restart_queues(ha, 1); |
| ha->isp_abort_cnt = 0; |
| clear_bit(ISP_ABORT_RETRY, &ha->dpc_flags); |
| } else { /* failed the ISP abort */ |
| ha->flags.online = 1; |
| if (test_bit(ISP_ABORT_RETRY, &ha->dpc_flags)) { |
| if (ha->isp_abort_cnt == 0) { |
| qla_printk(KERN_WARNING, ha, |
| "ISP error recovery failed - " |
| "board disabled\n"); |
| /* |
| * The next call disables the board |
| * completely. |
| */ |
| qla2x00_reset_adapter(ha); |
| qla2x00_abort_queues(ha, 0); |
| ha->flags.online = 0; |
| clear_bit(ISP_ABORT_RETRY, |
| &ha->dpc_flags); |
| status = 0; |
| } else { /* schedule another ISP abort */ |
| ha->isp_abort_cnt--; |
| DEBUG(printk("qla%ld: ISP abort - " |
| "retry remainning %d\n", |
| ha->host_no, ha->isp_abort_cnt);) |
| status = 1; |
| } |
| } else { |
| ha->isp_abort_cnt = MAX_RETRIES_OF_ISP_ABORT; |
| DEBUG(printk("qla2x00(%ld): ISP error recovery " |
| "- retrying (%d) more times\n", |
| ha->host_no, ha->isp_abort_cnt);) |
| set_bit(ISP_ABORT_RETRY, &ha->dpc_flags); |
| status = 1; |
| } |
| } |
| |
| } |
| |
| if (status) { |
| qla_printk(KERN_INFO, ha, |
| "qla2x00_abort_isp: **** FAILED ****\n"); |
| } else { |
| DEBUG(printk(KERN_INFO |
| "qla2x00_abort_isp(%ld): exiting.\n", |
| ha->host_no);) |
| } |
| |
| return(status); |
| } |
| |
| /* |
| * qla2x00_restart_isp |
| * restarts the ISP after a reset |
| * |
| * Input: |
| * ha = adapter block pointer. |
| * |
| * Returns: |
| * 0 = success |
| */ |
| static int |
| qla2x00_restart_isp(scsi_qla_host_t *ha) |
| { |
| uint8_t status = 0; |
| device_reg_t __iomem *reg = ha->iobase; |
| unsigned long flags = 0; |
| uint32_t wait_time; |
| |
| /* If firmware needs to be loaded */ |
| if (qla2x00_isp_firmware(ha)) { |
| ha->flags.online = 0; |
| if (!(status = qla2x00_chip_diag(ha))) { |
| if (IS_QLA2100(ha) || IS_QLA2200(ha)) { |
| status = qla2x00_setup_chip(ha); |
| goto done; |
| } |
| |
| reg = ha->iobase; |
| |
| spin_lock_irqsave(&ha->hardware_lock, flags); |
| |
| /* Disable SRAM, Instruction RAM and GP RAM parity. */ |
| WRT_REG_WORD(®->hccr, (HCCR_ENABLE_PARITY + 0x0)); |
| RD_REG_WORD(®->hccr); /* PCI Posting. */ |
| |
| spin_unlock_irqrestore(&ha->hardware_lock, flags); |
| |
| status = qla2x00_setup_chip(ha); |
| |
| spin_lock_irqsave(&ha->hardware_lock, flags); |
| |
| /* Enable proper parity */ |
| if (IS_QLA2300(ha)) |
| /* SRAM parity */ |
| WRT_REG_WORD(®->hccr, |
| (HCCR_ENABLE_PARITY + 0x1)); |
| else |
| /* SRAM, Instruction RAM and GP RAM parity */ |
| WRT_REG_WORD(®->hccr, |
| (HCCR_ENABLE_PARITY + 0x7)); |
| RD_REG_WORD(®->hccr); /* PCI Posting. */ |
| |
| spin_unlock_irqrestore(&ha->hardware_lock, flags); |
| } |
| } |
| |
| done: |
| if (!status && !(status = qla2x00_init_rings(ha))) { |
| clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags); |
| if (!(status = qla2x00_fw_ready(ha))) { |
| DEBUG(printk("%s(): Start configure loop, " |
| "status = %d\n", |
| __func__, |
| status);) |
| ha->flags.online = 1; |
| /* Wait at most MAX_TARGET RSCNs for a stable link. */ |
| wait_time = 256; |
| do { |
| clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags); |
| qla2x00_configure_loop(ha); |
| wait_time--; |
| } while (!atomic_read(&ha->loop_down_timer) && |
| !(test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) && |
| wait_time && |
| (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))); |
| } |
| |
| /* if no cable then assume it's good */ |
| if ((ha->device_flags & DFLG_NO_CABLE)) |
| status = 0; |
| |
| DEBUG(printk("%s(): Configure loop done, status = 0x%x\n", |
| __func__, |
| status);) |
| } |
| return (status); |
| } |
| |
| /* |
| * qla2x00_reset_adapter |
| * Reset adapter. |
| * |
| * Input: |
| * ha = adapter block pointer. |
| */ |
| static void |
| qla2x00_reset_adapter(scsi_qla_host_t *ha) |
| { |
| unsigned long flags = 0; |
| device_reg_t __iomem *reg = ha->iobase; |
| |
| ha->flags.online = 0; |
| qla2x00_disable_intrs(ha); |
| |
| /* Reset RISC processor. */ |
| spin_lock_irqsave(&ha->hardware_lock, flags); |
| WRT_REG_WORD(®->hccr, HCCR_RESET_RISC); |
| RD_REG_WORD(®->hccr); /* PCI Posting. */ |
| WRT_REG_WORD(®->hccr, HCCR_RELEASE_RISC); |
| RD_REG_WORD(®->hccr); /* PCI Posting. */ |
| spin_unlock_irqrestore(&ha->hardware_lock, flags); |
| } |