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linux-2.6-iscsi-add-qla4xxx2.patch
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File linux-2.6-iscsi-add-qla4xxx2.patch of Package kernel
diff -Naurp linux-2.6.17.noarch/drivers/scsi/Kconfig linux-2.6.17.noarch.qla4xxx/drivers/scsi/Kconfig --- linux-2.6.17.noarch/drivers/scsi/Kconfig 2006-08-15 14:19:43.000000000 -0400 +++ linux-2.6.17.noarch.qla4xxx/drivers/scsi/Kconfig 2006-08-17 12:57:22.000000000 -0400 @@ -1352,6 +1352,7 @@ config SCSI_QLOGICPTI module will be called qlogicpti. source "drivers/scsi/qla2xxx/Kconfig" +source "drivers/scsi/qla4xxx/Kconfig" config SCSI_LPFC tristate "Emulex LightPulse Fibre Channel Support" diff -Naurp linux-2.6.17.noarch/drivers/scsi/Makefile linux-2.6.17.noarch.qla4xxx/drivers/scsi/Makefile --- linux-2.6.17.noarch/drivers/scsi/Makefile 2006-08-15 14:19:41.000000000 -0400 +++ linux-2.6.17.noarch.qla4xxx/drivers/scsi/Makefile 2006-08-17 12:57:22.000000000 -0400 @@ -81,6 +81,7 @@ obj-$(CONFIG_SCSI_QLOGIC_FAS) += qlogicf obj-$(CONFIG_PCMCIA_QLOGIC) += qlogicfas408.o obj-$(CONFIG_SCSI_QLOGIC_1280) += qla1280.o obj-$(CONFIG_SCSI_QLA_FC) += qla2xxx/ +obj-$(CONFIG_SCSI_QLA_ISCSI) += qla4xxx/ obj-$(CONFIG_SCSI_LPFC) += lpfc/ obj-$(CONFIG_SCSI_PAS16) += pas16.o obj-$(CONFIG_SCSI_SEAGATE) += seagate.o diff -Naurp linux-2.6.17.noarch/drivers/scsi/qla4xxx/Kconfig linux-2.6.17.noarch.qla4xxx/drivers/scsi/qla4xxx/Kconfig --- linux-2.6.17.noarch/drivers/scsi/qla4xxx/Kconfig 1969-12-31 19:00:00.000000000 -0500 +++ linux-2.6.17.noarch.qla4xxx/drivers/scsi/qla4xxx/Kconfig 2006-08-17 12:57:22.000000000 -0400 @@ -0,0 +1,7 @@ +config SCSI_QLA_ISCSI + tristate "QLogic ISP4XXX host adapter family support" + depends on PCI && SCSI + select SCSI_ISCSI_ATTRS + ---help--- + This driver supports the QLogic 40xx (ISP4XXX) iSCSI host + adapter family. diff -Naurp linux-2.6.17.noarch/drivers/scsi/qla4xxx/Makefile linux-2.6.17.noarch.qla4xxx/drivers/scsi/qla4xxx/Makefile --- linux-2.6.17.noarch/drivers/scsi/qla4xxx/Makefile 1969-12-31 19:00:00.000000000 -0500 +++ linux-2.6.17.noarch.qla4xxx/drivers/scsi/qla4xxx/Makefile 2006-08-17 12:57:22.000000000 -0400 @@ -0,0 +1,5 @@ +qla4xxx-y := ql4_os.o ql4_init.o ql4_mbx.o ql4_iocb.o ql4_isr.o \ + ql4_nvram.o ql4_dbg.o + +obj-$(CONFIG_SCSI_QLA_ISCSI) += qla4xxx.o + diff -Naurp linux-2.6.17.noarch/drivers/scsi/qla4xxx/ql4_dbg.c linux-2.6.17.noarch.qla4xxx/drivers/scsi/qla4xxx/ql4_dbg.c --- linux-2.6.17.noarch/drivers/scsi/qla4xxx/ql4_dbg.c 1969-12-31 19:00:00.000000000 -0500 +++ linux-2.6.17.noarch.qla4xxx/drivers/scsi/qla4xxx/ql4_dbg.c 2006-08-17 12:57:22.000000000 -0400 @@ -0,0 +1,197 @@ +/* + * QLogic iSCSI HBA Driver + * Copyright (c) 2003-2006 QLogic Corporation + * + * See LICENSE.qla4xxx for copyright and licensing details. + */ + +#include "ql4_def.h" +#include <scsi/scsi_dbg.h> + +static void qla4xxx_print_srb_info(struct srb * srb) +{ + printk("%s: srb = 0x%p, flags=0x%02x\n", __func__, srb, srb->flags); + printk("%s: cmd = 0x%p, saved_dma_handle = 0x%lx\n", + __func__, srb->cmd, (unsigned long) srb->dma_handle); + printk("%s: fw_ddb_index = %d, lun = %d\n", + __func__, srb->fw_ddb_index, srb->cmd->device->lun); + printk("%s: iocb_tov = %d\n", + __func__, srb->iocb_tov); + printk("%s: cc_stat = 0x%x, r_start = 0x%lx, u_start = 0x%lx\n\n", + __func__, srb->cc_stat, srb->r_start, srb->u_start); +} + +void qla4xxx_print_scsi_cmd(struct scsi_cmnd *cmd) +{ + printk("SCSI Command = 0x%p, Handle=0x%p\n", cmd, cmd->host_scribble); + printk(" b=%d, t=%02xh, l=%02xh, cmd_len = %02xh\n", + cmd->device->channel, cmd->device->id, cmd->device->lun, + cmd->cmd_len); + scsi_print_command(cmd); + printk(" seg_cnt = %d\n", cmd->use_sg); + printk(" request buffer = 0x%p, request buffer len = 0x%x\n", + cmd->request_buffer, cmd->request_bufflen); + if (cmd->use_sg) { + struct scatterlist *sg; + sg = (struct scatterlist *)cmd->request_buffer; + printk(" SG buffer: \n"); + qla4xxx_dump_buffer((caddr_t) sg, + (cmd->use_sg * sizeof(*sg))); + } + printk(" tag = %d, transfersize = 0x%x \n", cmd->tag, + cmd->transfersize); + printk(" Pid = %d, SP = 0x%p\n", (int)cmd->pid, cmd->SCp.ptr); + printk(" underflow size = 0x%x, direction=0x%x\n", cmd->underflow, + cmd->sc_data_direction); + printk(" Current time (jiffies) = 0x%lx, " + "timeout expires = 0x%lx\n", jiffies, cmd->eh_timeout.expires); + qla4xxx_print_srb_info((struct srb *) cmd->SCp.ptr); +} + +void __dump_registers(struct scsi_qla_host *ha) +{ + uint8_t i; + for (i = 0; i < MBOX_REG_COUNT; i++) { + printk(KERN_INFO "0x%02X mailbox[%d] = 0x%08X\n", + (uint8_t) offsetof(struct isp_reg, mailbox[i]), i, + readw(&ha->reg->mailbox[i])); + } + printk(KERN_INFO "0x%02X flash_address = 0x%08X\n", + (uint8_t) offsetof(struct isp_reg, flash_address), + readw(&ha->reg->flash_address)); + printk(KERN_INFO "0x%02X flash_data = 0x%08X\n", + (uint8_t) offsetof(struct isp_reg, flash_data), + readw(&ha->reg->flash_data)); + printk(KERN_INFO "0x%02X ctrl_status = 0x%08X\n", + (uint8_t) offsetof(struct isp_reg, ctrl_status), + readw(&ha->reg->ctrl_status)); + if (is_qla4010(ha)) { + printk(KERN_INFO "0x%02X nvram = 0x%08X\n", + (uint8_t) offsetof(struct isp_reg, u1.isp4010.nvram), + readw(&ha->reg->u1.isp4010.nvram)); + } + + else if (is_qla4022(ha)) { + printk(KERN_INFO "0x%02X intr_mask = 0x%08X\n", + (uint8_t) offsetof(struct isp_reg, + u1.isp4022.intr_mask), + readw(&ha->reg->u1.isp4022.intr_mask)); + printk(KERN_INFO "0x%02X nvram = 0x%08X\n", + (uint8_t) offsetof(struct isp_reg, u1.isp4022.nvram), + readw(&ha->reg->u1.isp4022.nvram)); + printk(KERN_INFO "0x%02X semaphore = 0x%08X\n", + (uint8_t) offsetof(struct isp_reg, + u1.isp4022.semaphore), + readw(&ha->reg->u1.isp4022.semaphore)); + } + printk(KERN_INFO "0x%02X req_q_in = 0x%08X\n", + (uint8_t) offsetof(struct isp_reg, req_q_in), + readw(&ha->reg->req_q_in)); + printk(KERN_INFO "0x%02X rsp_q_out = 0x%08X\n", + (uint8_t) offsetof(struct isp_reg, rsp_q_out), + readw(&ha->reg->rsp_q_out)); + if (is_qla4010(ha)) { + printk(KERN_INFO "0x%02X ext_hw_conf = 0x%08X\n", + (uint8_t) offsetof(struct isp_reg, + u2.isp4010.ext_hw_conf), + readw(&ha->reg->u2.isp4010.ext_hw_conf)); + printk(KERN_INFO "0x%02X port_ctrl = 0x%08X\n", + (uint8_t) offsetof(struct isp_reg, + u2.isp4010.port_ctrl), + readw(&ha->reg->u2.isp4010.port_ctrl)); + printk(KERN_INFO "0x%02X port_status = 0x%08X\n", + (uint8_t) offsetof(struct isp_reg, + u2.isp4010.port_status), + readw(&ha->reg->u2.isp4010.port_status)); + printk(KERN_INFO "0x%02X req_q_out = 0x%08X\n", + (uint8_t) offsetof(struct isp_reg, + u2.isp4010.req_q_out), + readw(&ha->reg->u2.isp4010.req_q_out)); + printk(KERN_INFO "0x%02X gp_out = 0x%08X\n", + (uint8_t) offsetof(struct isp_reg, u2.isp4010.gp_out), + readw(&ha->reg->u2.isp4010.gp_out)); + printk(KERN_INFO "0x%02X gp_in = 0x%08X\n", + (uint8_t) offsetof(struct isp_reg, u2.isp4010.gp_in), + readw(&ha->reg->u2.isp4010.gp_in)); + printk(KERN_INFO "0x%02X port_err_status = 0x%08X\n", + (uint8_t) offsetof(struct isp_reg, + u2.isp4010.port_err_status), + readw(&ha->reg->u2.isp4010.port_err_status)); + } + + else if (is_qla4022(ha)) { + printk(KERN_INFO "Page 0 Registers:\n"); + printk(KERN_INFO "0x%02X ext_hw_conf = 0x%08X\n", + (uint8_t) offsetof(struct isp_reg, + u2.isp4022.p0.ext_hw_conf), + readw(&ha->reg->u2.isp4022.p0.ext_hw_conf)); + printk(KERN_INFO "0x%02X port_ctrl = 0x%08X\n", + (uint8_t) offsetof(struct isp_reg, + u2.isp4022.p0.port_ctrl), + readw(&ha->reg->u2.isp4022.p0.port_ctrl)); + printk(KERN_INFO "0x%02X port_status = 0x%08X\n", + (uint8_t) offsetof(struct isp_reg, + u2.isp4022.p0.port_status), + readw(&ha->reg->u2.isp4022.p0.port_status)); + printk(KERN_INFO "0x%02X gp_out = 0x%08X\n", + (uint8_t) offsetof(struct isp_reg, + u2.isp4022.p0.gp_out), + readw(&ha->reg->u2.isp4022.p0.gp_out)); + printk(KERN_INFO "0x%02X gp_in = 0x%08X\n", + (uint8_t) offsetof(struct isp_reg, u2.isp4022.p0.gp_in), + readw(&ha->reg->u2.isp4022.p0.gp_in)); + printk(KERN_INFO "0x%02X port_err_status = 0x%08X\n", + (uint8_t) offsetof(struct isp_reg, + u2.isp4022.p0.port_err_status), + readw(&ha->reg->u2.isp4022.p0.port_err_status)); + printk(KERN_INFO "Page 1 Registers:\n"); + writel(HOST_MEM_CFG_PAGE & set_rmask(CSR_SCSI_PAGE_SELECT), + &ha->reg->ctrl_status); + printk(KERN_INFO "0x%02X req_q_out = 0x%08X\n", + (uint8_t) offsetof(struct isp_reg, + u2.isp4022.p1.req_q_out), + readw(&ha->reg->u2.isp4022.p1.req_q_out)); + writel(PORT_CTRL_STAT_PAGE & set_rmask(CSR_SCSI_PAGE_SELECT), + &ha->reg->ctrl_status); + } +} + +void qla4xxx_dump_mbox_registers(struct scsi_qla_host *ha) +{ + unsigned long flags = 0; + int i = 0; + spin_lock_irqsave(&ha->hardware_lock, flags); + for (i = 1; i < MBOX_REG_COUNT; i++) + printk(KERN_INFO " Mailbox[%d] = %08x\n", i, + readw(&ha->reg->mailbox[i])); + spin_unlock_irqrestore(&ha->hardware_lock, flags); +} + +void qla4xxx_dump_registers(struct scsi_qla_host *ha) +{ + unsigned long flags = 0; + spin_lock_irqsave(&ha->hardware_lock, flags); + __dump_registers(ha); + spin_unlock_irqrestore(&ha->hardware_lock, flags); +} + +void qla4xxx_dump_buffer(void *b, uint32_t size) +{ + uint32_t cnt; + uint8_t *c = b; + + printk(" 0 1 2 3 4 5 6 7 8 9 Ah Bh Ch Dh Eh " + "Fh\n"); + printk("------------------------------------------------------------" + "--\n"); + for (cnt = 0; cnt < size; cnt++, c++) { + printk(KERN_DEBUG "%02x", *c); + if (!(cnt % 16)) + printk(KERN_DEBUG "\n"); + + else + printk(KERN_DEBUG " "); + } + if (cnt % 16) + printk(KERN_DEBUG "\n"); +} diff -Naurp linux-2.6.17.noarch/drivers/scsi/qla4xxx/ql4_dbg.h linux-2.6.17.noarch.qla4xxx/drivers/scsi/qla4xxx/ql4_dbg.h --- linux-2.6.17.noarch/drivers/scsi/qla4xxx/ql4_dbg.h 1969-12-31 19:00:00.000000000 -0500 +++ linux-2.6.17.noarch.qla4xxx/drivers/scsi/qla4xxx/ql4_dbg.h 2006-08-17 12:57:22.000000000 -0400 @@ -0,0 +1,55 @@ +/* + * QLogic iSCSI HBA Driver + * Copyright (c) 2003-2006 QLogic Corporation + * + * See LICENSE.qla4xxx for copyright and licensing details. + */ + +/* + * Driver debug definitions. + */ +/* #define QL_DEBUG */ /* DEBUG messages */ +/* #define QL_DEBUG_LEVEL_3 */ /* Output function tracing */ +/* #define QL_DEBUG_LEVEL_4 */ +/* #define QL_DEBUG_LEVEL_5 */ +/* #define QL_DEBUG_LEVEL_9 */ + +#define QL_DEBUG_LEVEL_2 /* ALways enable error messagess */ +#if defined(QL_DEBUG) +#define DEBUG(x) do {x;} while (0); +#else +#define DEBUG(x) do {} while (0); +#endif + +#if defined(QL_DEBUG_LEVEL_2) +#define DEBUG2(x) do {if(extended_error_logging == 2) x;} while (0); +#define DEBUG2_3(x) do {x;} while (0); +#else /* */ +#define DEBUG2(x) do {} while (0); +#endif /* */ + +#if defined(QL_DEBUG_LEVEL_3) +#define DEBUG3(x) do {if(extended_error_logging == 3) x;} while (0); +#else /* */ +#define DEBUG3(x) do {} while (0); +#if !defined(QL_DEBUG_LEVEL_2) +#define DEBUG2_3(x) do {} while (0); +#endif /* */ +#endif /* */ +#if defined(QL_DEBUG_LEVEL_4) +#define DEBUG4(x) do {x;} while (0); +#else /* */ +#define DEBUG4(x) do {} while (0); +#endif /* */ + +#if defined(QL_DEBUG_LEVEL_5) +#define DEBUG5(x) do {x;} while (0); +#else /* */ +#define DEBUG5(x) do {} while (0); +#endif /* */ + +#if defined(QL_DEBUG_LEVEL_9) +#define DEBUG9(x) do {x;} while (0); +#else /* */ +#define DEBUG9(x) do {} while (0); +#endif /* */ diff -Naurp linux-2.6.17.noarch/drivers/scsi/qla4xxx/ql4_def.h linux-2.6.17.noarch.qla4xxx/drivers/scsi/qla4xxx/ql4_def.h --- linux-2.6.17.noarch/drivers/scsi/qla4xxx/ql4_def.h 1969-12-31 19:00:00.000000000 -0500 +++ linux-2.6.17.noarch.qla4xxx/drivers/scsi/qla4xxx/ql4_def.h 2006-08-17 12:57:22.000000000 -0400 @@ -0,0 +1,599 @@ +/* + * QLogic iSCSI HBA Driver + * Copyright (c) 2003-2006 QLogic Corporation + * + * See LICENSE.qla4xxx for copyright and licensing details. + */ + +#ifndef __QL4_DEF_H +#define __QL4_DEF_H + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/types.h> +#include <linux/module.h> +#include <linux/list.h> +#include <linux/pci.h> +#include <linux/dma-mapping.h> +#include <linux/sched.h> +#include <linux/slab.h> +#include <linux/dmapool.h> +#include <linux/mempool.h> +#include <linux/spinlock.h> +#include <linux/workqueue.h> +#include <linux/delay.h> +#include <linux/interrupt.h> +#include <linux/mutex.h> + +#include <net/tcp.h> +#include <scsi/scsi.h> +#include <scsi/scsi_host.h> +#include <scsi/scsi_device.h> +#include <scsi/scsi_cmnd.h> +#include <scsi/scsi_transport.h> +#include <scsi/scsi_transport_iscsi.h> + + +#ifndef PCI_DEVICE_ID_QLOGIC_ISP4010 +#define PCI_DEVICE_ID_QLOGIC_ISP4010 0x4010 +#endif + +#ifndef PCI_DEVICE_ID_QLOGIC_ISP4022 +#define PCI_DEVICE_ID_QLOGIC_ISP4022 0x4022 +#endif /* */ + +#define QLA_SUCCESS 0 +#define QLA_ERROR 1 + +/* + * Data bit definitions + */ +#define BIT_0 0x1 +#define BIT_1 0x2 +#define BIT_2 0x4 +#define BIT_3 0x8 +#define BIT_4 0x10 +#define BIT_5 0x20 +#define BIT_6 0x40 +#define BIT_7 0x80 +#define BIT_8 0x100 +#define BIT_9 0x200 +#define BIT_10 0x400 +#define BIT_11 0x800 +#define BIT_12 0x1000 +#define BIT_13 0x2000 +#define BIT_14 0x4000 +#define BIT_15 0x8000 +#define BIT_16 0x10000 +#define BIT_17 0x20000 +#define BIT_18 0x40000 +#define BIT_19 0x80000 +#define BIT_20 0x100000 +#define BIT_21 0x200000 +#define BIT_22 0x400000 +#define BIT_23 0x800000 +#define BIT_24 0x1000000 +#define BIT_25 0x2000000 +#define BIT_26 0x4000000 +#define BIT_27 0x8000000 +#define BIT_28 0x10000000 +#define BIT_29 0x20000000 +#define BIT_30 0x40000000 +#define BIT_31 0x80000000 + +/* + * Host adapter default definitions + ***********************************/ +#define MAX_HBAS 16 +#define MAX_BUSES 1 +#define MAX_TARGETS (MAX_PRST_DEV_DB_ENTRIES + MAX_DEV_DB_ENTRIES) +#define MAX_LUNS 0xffff +#define MAX_AEN_ENTRIES 256 /* should be > EXT_DEF_MAX_AEN_QUEUE */ +#define MAX_DDB_ENTRIES (MAX_PRST_DEV_DB_ENTRIES + MAX_DEV_DB_ENTRIES) +#define MAX_PDU_ENTRIES 32 +#define INVALID_ENTRY 0xFFFF +#define MAX_CMDS_TO_RISC 1024 +#define MAX_SRBS MAX_CMDS_TO_RISC +#define MBOX_AEN_REG_COUNT 5 +#define MAX_INIT_RETRIES 5 +#define IOCB_HIWAT_CUSHION 16 + +/* + * Buffer sizes + */ +#define REQUEST_QUEUE_DEPTH MAX_CMDS_TO_RISC +#define RESPONSE_QUEUE_DEPTH 64 +#define QUEUE_SIZE 64 +#define DMA_BUFFER_SIZE 512 + +/* + * Misc + */ +#define MAC_ADDR_LEN 6 /* in bytes */ +#define IP_ADDR_LEN 4 /* in bytes */ +#define DRIVER_NAME "qla4xxx" + +#define MAX_LINKED_CMDS_PER_LUN 3 +#define MAX_REQS_SERVICED_PER_INTR 16 + +#define ISCSI_IPADDR_SIZE 4 /* IP address size */ +#define ISCSI_ALIAS_SIZE 32 /* ISCSI Alais name size */ +#define ISCSI_NAME_SIZE 255 /* ISCSI Name size - + * usually a string */ + +#define LSDW(x) ((u32)((u64)(x))) +#define MSDW(x) ((u32)((((u64)(x)) >> 16) >> 16)) + +/* + * Retry & Timeout Values + */ +#define MBOX_TOV 60 +#define SOFT_RESET_TOV 30 +#define RESET_INTR_TOV 3 +#define SEMAPHORE_TOV 10 +#define ADAPTER_INIT_TOV 120 +#define ADAPTER_RESET_TOV 180 +#define EXTEND_CMD_TOV 60 +#define WAIT_CMD_TOV 30 +#define EH_WAIT_CMD_TOV 120 +#define FIRMWARE_UP_TOV 60 +#define RESET_FIRMWARE_TOV 30 +#define LOGOUT_TOV 10 +#define IOCB_TOV_MARGIN 10 +#define RELOGIN_TOV 18 +#define ISNS_DEREG_TOV 5 + +#define MAX_RESET_HA_RETRIES 2 + +/* + * SCSI Request Block structure (srb) that is placed + * on cmd->SCp location of every I/O [We have 22 bytes available] + */ +struct srb { + struct list_head list; /* (8) */ + struct scsi_qla_host *ha; /* HA the SP is queued on */ + struct ddb_entry *ddb; + uint16_t flags; /* (1) Status flags. */ + +#define SRB_DMA_VALID BIT_3 /* DMA Buffer mapped. */ +#define SRB_GOT_SENSE BIT_4 /* sense data recieved. */ + uint8_t state; /* (1) Status flags. */ + +#define SRB_NO_QUEUE_STATE 0 /* Request is in between states */ +#define SRB_FREE_STATE 1 +#define SRB_ACTIVE_STATE 3 +#define SRB_ACTIVE_TIMEOUT_STATE 4 +#define SRB_SUSPENDED_STATE 7 /* Request in suspended state */ + + struct scsi_cmnd *cmd; /* (4) SCSI command block */ + dma_addr_t dma_handle; /* (4) for unmap of single transfers */ + atomic_t ref_count; /* reference count for this srb */ + uint32_t fw_ddb_index; + uint8_t err_id; /* error id */ +#define SRB_ERR_PORT 1 /* Request failed because "port down" */ +#define SRB_ERR_LOOP 2 /* Request failed because "loop down" */ +#define SRB_ERR_DEVICE 3 /* Request failed because "device error" */ +#define SRB_ERR_OTHER 4 + + uint16_t reserved; + uint16_t iocb_tov; + uint16_t iocb_cnt; /* Number of used iocbs */ + uint16_t cc_stat; + u_long r_start; /* Time we recieve a cmd from OS */ + u_long u_start; /* Time when we handed the cmd to F/W */ +}; + + /* + * Device Database (DDB) structure + */ +struct ddb_entry { + struct list_head list; /* ddb list */ + struct scsi_qla_host *ha; + struct iscsi_cls_session *sess; + struct iscsi_cls_conn *conn; + + atomic_t state; /* DDB State */ + + unsigned long flags; /* DDB Flags */ + + unsigned long dev_scan_wait_to_start_relogin; + unsigned long dev_scan_wait_to_complete_relogin; + + uint16_t os_target_id; /* Target ID */ + uint16_t fw_ddb_index; /* DDB firmware index */ + uint8_t reserved[2]; + uint32_t fw_ddb_device_state; /* F/W Device State -- see ql4_fw.h */ + + uint32_t CmdSn; + uint16_t target_session_id; + uint16_t connection_id; + uint16_t exe_throttle; /* Max mumber of cmds outstanding + * simultaneously */ + uint16_t task_mgmt_timeout; /* Min time for task mgmt cmds to + * complete */ + uint16_t default_relogin_timeout; /* Max time to wait for + * relogin to complete */ + uint16_t tcp_source_port_num; + uint32_t default_time2wait; /* Default Min time between + * relogins (+aens) */ + + atomic_t port_down_timer; /* Device connection timer */ + atomic_t retry_relogin_timer; /* Min Time between relogins + * (4000 only) */ + atomic_t relogin_timer; /* Max Time to wait for relogin to complete */ + atomic_t relogin_retry_count; /* Num of times relogin has been + * retried */ + + uint16_t port; + uint32_t tpgt; + uint8_t ip_addr[ISCSI_IPADDR_SIZE]; + uint8_t iscsi_name[ISCSI_NAME_SIZE]; /* 72 x48 */ + uint8_t iscsi_alias[0x20]; +}; + +/* + * DDB states. + */ +#define DDB_STATE_DEAD 0 /* We can no longer talk to + * this device */ +#define DDB_STATE_ONLINE 1 /* Device ready to accept + * commands */ +#define DDB_STATE_MISSING 2 /* Device logged off, trying + * to re-login */ + +/* + * DDB flags. + */ +#define DF_RELOGIN 0 /* Relogin to device */ +#define DF_NO_RELOGIN 1 /* Do not relogin if IOCTL + * logged it out */ +#define DF_ISNS_DISCOVERED 2 /* Device was discovered via iSNS */ +#define DF_FO_MASKED 3 + +/* + * Asynchronous Event Queue structure + */ +struct aen { + uint32_t mbox_sts[MBOX_AEN_REG_COUNT]; +}; + + +#include "ql4_fw.h" +#include "ql4_nvram.h" + +/* + * Linux Host Adapter structure + */ +struct scsi_qla_host { + /* Linux adapter configuration data */ + struct Scsi_Host *host; /* pointer to host data */ + uint32_t tot_ddbs; + unsigned long flags; + +#define AF_ONLINE 0 /* 0x00000001 */ +#define AF_INIT_DONE 1 /* 0x00000002 */ +#define AF_MBOX_COMMAND 2 /* 0x00000004 */ +#define AF_MBOX_COMMAND_DONE 3 /* 0x00000008 */ +#define AF_INTERRUPTS_ON 6 /* 0x00000040 Not Used */ +#define AF_GET_CRASH_RECORD 7 /* 0x00000080 */ +#define AF_LINK_UP 8 /* 0x00000100 */ +#define AF_TOPCAT_CHIP_PRESENT 9 /* 0x00000200 */ +#define AF_IRQ_ATTACHED 10 /* 0x00000400 */ +#define AF_ISNS_CMD_IN_PROCESS 12 /* 0x00001000 */ +#define AF_ISNS_CMD_DONE 13 /* 0x00002000 */ + + unsigned long dpc_flags; + +#define DPC_RESET_HA 1 /* 0x00000002 */ +#define DPC_RETRY_RESET_HA 2 /* 0x00000004 */ +#define DPC_RELOGIN_DEVICE 3 /* 0x00000008 */ +#define DPC_RESET_HA_DESTROY_DDB_LIST 4 /* 0x00000010 */ +#define DPC_RESET_HA_INTR 5 /* 0x00000020 */ +#define DPC_ISNS_RESTART 7 /* 0x00000080 */ +#define DPC_AEN 9 /* 0x00000200 */ +#define DPC_GET_DHCP_IP_ADDR 15 /* 0x00008000 */ + + uint16_t iocb_cnt; + uint16_t iocb_hiwat; + + /* SRB cache. */ +#define SRB_MIN_REQ 128 + mempool_t *srb_mempool; + + /* pci information */ + struct pci_dev *pdev; + + struct isp_reg __iomem *reg; /* Base I/O address */ + unsigned long pio_address; + unsigned long pio_length; +#define MIN_IOBASE_LEN 0x100 + + uint16_t req_q_count; + uint8_t marker_needed; + uint8_t rsvd1; + + unsigned long host_no; + + /* NVRAM registers */ + struct eeprom_data *nvram; + spinlock_t hardware_lock ____cacheline_aligned; + spinlock_t list_lock; + uint32_t eeprom_cmd_data; + + /* Counters for general statistics */ + uint64_t adapter_error_count; + uint64_t device_error_count; + uint64_t total_io_count; + uint64_t total_mbytes_xferred; + uint64_t link_failure_count; + uint64_t invalid_crc_count; + uint32_t spurious_int_count; + uint32_t aborted_io_count; + uint32_t io_timeout_count; + uint32_t mailbox_timeout_count; + uint32_t seconds_since_last_intr; + uint32_t seconds_since_last_heartbeat; + uint32_t mac_index; + + /* Info Needed for Management App */ + /* --- From GetFwVersion --- */ + uint32_t firmware_version[2]; + uint32_t patch_number; + uint32_t build_number; + + /* --- From Init_FW --- */ + /* init_cb_t *init_cb; */ + uint16_t firmware_options; + uint16_t tcp_options; + uint8_t ip_address[IP_ADDR_LEN]; + uint8_t subnet_mask[IP_ADDR_LEN]; + uint8_t gateway[IP_ADDR_LEN]; + uint8_t alias[32]; + uint8_t name_string[256]; + uint8_t heartbeat_interval; + uint8_t rsvd; + + /* --- From FlashSysInfo --- */ + uint8_t my_mac[MAC_ADDR_LEN]; + uint8_t serial_number[16]; + + /* --- From GetFwState --- */ + uint32_t firmware_state; + uint32_t board_id; + uint32_t addl_fw_state; + + /* Linux kernel thread */ + struct workqueue_struct *dpc_thread; + struct work_struct dpc_work; + + /* Linux timer thread */ + struct timer_list timer; + uint32_t timer_active; + + /* Recovery Timers */ + uint32_t port_down_retry_count; + uint32_t discovery_wait; + atomic_t check_relogin_timeouts; + uint32_t retry_reset_ha_cnt; + uint32_t isp_reset_timer; /* reset test timer */ + uint32_t nic_reset_timer; /* simulated nic reset test timer */ + int eh_start; + struct list_head free_srb_q; + uint16_t free_srb_q_count; + uint16_t num_srbs_allocated; + + /* Active array */ + struct srb *active_srb_array[MAX_SRBS]; + uint16_t current_active_index; + + /* DMA Memory Block */ + void *queues; + dma_addr_t queues_dma; + unsigned long queues_len; + +#define MEM_ALIGN_VALUE \ + ((max(REQUEST_QUEUE_DEPTH, RESPONSE_QUEUE_DEPTH)) * \ + sizeof(struct queue_entry)) + /* request and response queue variables */ + dma_addr_t request_dma; + struct queue_entry *request_ring; + struct queue_entry *request_ptr; + dma_addr_t response_dma; + struct queue_entry *response_ring; + struct queue_entry *response_ptr; + dma_addr_t shadow_regs_dma; + struct shadow_regs *shadow_regs; + uint16_t request_in; /* Current indexes. */ + uint16_t request_out; + uint16_t response_in; + uint16_t response_out; + + /* aen queue variables */ + uint16_t aen_q_count; /* Number of available aen_q entries */ + uint16_t aen_in; /* Current indexes */ + uint16_t aen_out; + struct aen aen_q[MAX_AEN_ENTRIES]; + + /* pdu variables */ + uint16_t pdu_count; /* Number of available aen_q entries */ + uint16_t pdu_in; /* Current indexes */ + uint16_t pdu_out; + uint16_t pdu_active; + struct pdu_entry *free_pdu_top; + struct pdu_entry *free_pdu_bottom; + struct pdu_entry pdu_queue[MAX_PDU_ENTRIES]; + + /* This mutex protects several threads to do mailbox commands + * concurrently. + */ + struct mutex mbox_sem; + wait_queue_head_t mailbox_wait_queue; + + /* temporary mailbox status registers */ + volatile uint8_t mbox_status_count; + volatile uint32_t mbox_status[MBOX_REG_COUNT]; + + /* local device database list (contains internal ddb entries) */ + struct list_head ddb_list; + + /* Map ddb_list entry by FW ddb index */ + struct ddb_entry *fw_ddb_index_map[MAX_DDB_ENTRIES]; + +}; + +static inline int is_qla4010(struct scsi_qla_host *ha) +{ + return ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP4010; +} + +static inline int is_qla4022(struct scsi_qla_host *ha) +{ + return ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP4022; +} + +static inline int adapter_up(struct scsi_qla_host *ha) +{ + return (test_bit(AF_ONLINE, &ha->flags) != 0) && + (test_bit(AF_LINK_UP, &ha->flags) != 0); +} + +static inline struct scsi_qla_host* to_qla_host(struct Scsi_Host *shost) +{ + return (struct scsi_qla_host *)shost->hostdata; +} + +static inline void __iomem* isp_semaphore(struct scsi_qla_host *ha) +{ + return (is_qla4022(ha) ? + &ha->reg->u1.isp4022.semaphore : + &ha->reg->u1.isp4010.nvram); +} + +static inline void __iomem* isp_nvram(struct scsi_qla_host *ha) +{ + return (is_qla4022(ha) ? + &ha->reg->u1.isp4022.nvram : + &ha->reg->u1.isp4010.nvram); +} + +static inline void __iomem* isp_ext_hw_conf(struct scsi_qla_host *ha) +{ + return (is_qla4022(ha) ? + &ha->reg->u2.isp4022.p0.ext_hw_conf : + &ha->reg->u2.isp4010.ext_hw_conf); +} + +static inline void __iomem* isp_port_status(struct scsi_qla_host *ha) +{ + return (is_qla4022(ha) ? + &ha->reg->u2.isp4022.p0.port_status : + &ha->reg->u2.isp4010.port_status); +} + +static inline void __iomem* isp_port_ctrl(struct scsi_qla_host *ha) +{ + return (is_qla4022(ha) ? + &ha->reg->u2.isp4022.p0.port_ctrl : + &ha->reg->u2.isp4010.port_ctrl); +} + +static inline void __iomem* isp_port_error_status(struct scsi_qla_host *ha) +{ + return (is_qla4022(ha) ? + &ha->reg->u2.isp4022.p0.port_err_status : + &ha->reg->u2.isp4010.port_err_status); +} + +static inline void __iomem * isp_gp_out(struct scsi_qla_host *ha) +{ + return (is_qla4022(ha) ? + &ha->reg->u2.isp4022.p0.gp_out : + &ha->reg->u2.isp4010.gp_out); +} + +static inline int eeprom_ext_hw_conf_offset(struct scsi_qla_host *ha) +{ + return (is_qla4022(ha) ? + offsetof(struct eeprom_data, isp4022.ext_hw_conf) / 2 : + offsetof(struct eeprom_data, isp4010.ext_hw_conf) / 2); +} + +int ql4xxx_sem_spinlock(struct scsi_qla_host * ha, u32 sem_mask, u32 sem_bits); +void ql4xxx_sem_unlock(struct scsi_qla_host * ha, u32 sem_mask); +int ql4xxx_sem_lock(struct scsi_qla_host * ha, u32 sem_mask, u32 sem_bits); + +static inline int ql4xxx_lock_flash(struct scsi_qla_host *a) +{ + if (is_qla4022(a)) + return ql4xxx_sem_spinlock(a, QL4022_FLASH_SEM_MASK, + (QL4022_RESOURCE_BITS_BASE_CODE | + (a->mac_index)) << 13); + else + return ql4xxx_sem_spinlock(a, QL4010_FLASH_SEM_MASK, + QL4010_FLASH_SEM_BITS); +} + +static inline void ql4xxx_unlock_flash(struct scsi_qla_host *a) +{ + if (is_qla4022(a)) + ql4xxx_sem_unlock(a, QL4022_FLASH_SEM_MASK); + else + ql4xxx_sem_unlock(a, QL4010_FLASH_SEM_MASK); +} + +static inline int ql4xxx_lock_nvram(struct scsi_qla_host *a) +{ + if (is_qla4022(a)) + return ql4xxx_sem_spinlock(a, QL4022_NVRAM_SEM_MASK, + (QL4022_RESOURCE_BITS_BASE_CODE | + (a->mac_index)) << 10); + else + return ql4xxx_sem_spinlock(a, QL4010_NVRAM_SEM_MASK, + QL4010_NVRAM_SEM_BITS); +} + +static inline void ql4xxx_unlock_nvram(struct scsi_qla_host *a) +{ + if (is_qla4022(a)) + ql4xxx_sem_unlock(a, QL4022_NVRAM_SEM_MASK); + else + ql4xxx_sem_unlock(a, QL4010_NVRAM_SEM_MASK); +} + +static inline int ql4xxx_lock_drvr(struct scsi_qla_host *a) +{ + if (is_qla4022(a)) + return ql4xxx_sem_lock(a, QL4022_DRVR_SEM_MASK, + (QL4022_RESOURCE_BITS_BASE_CODE | + (a->mac_index)) << 1); + else + return ql4xxx_sem_lock(a, QL4010_DRVR_SEM_MASK, + QL4010_DRVR_SEM_BITS); +} + +static inline void ql4xxx_unlock_drvr(struct scsi_qla_host *a) +{ + if (is_qla4022(a)) + ql4xxx_sem_unlock(a, QL4022_DRVR_SEM_MASK); + else + ql4xxx_sem_unlock(a, QL4010_DRVR_SEM_MASK); +} + +/*---------------------------------------------------------------------------*/ + +/* Defines for qla4xxx_initialize_adapter() and qla4xxx_recover_adapter() */ +#define PRESERVE_DDB_LIST 0 +#define REBUILD_DDB_LIST 1 + +/* Defines for process_aen() */ +#define PROCESS_ALL_AENS 0 +#define FLUSH_DDB_CHANGED_AENS 1 +#define RELOGIN_DDB_CHANGED_AENS 2 + +#include "ql4_version.h" +#include "ql4_glbl.h" +#include "ql4_dbg.h" +#include "ql4_inline.h" + + +#endif /*_QLA4XXX_H */ diff -Naurp linux-2.6.17.noarch/drivers/scsi/qla4xxx/ql4_fw.h linux-2.6.17.noarch.qla4xxx/drivers/scsi/qla4xxx/ql4_fw.h --- linux-2.6.17.noarch/drivers/scsi/qla4xxx/ql4_fw.h 1969-12-31 19:00:00.000000000 -0500 +++ linux-2.6.17.noarch.qla4xxx/drivers/scsi/qla4xxx/ql4_fw.h 2006-08-17 12:57:22.000000000 -0400 @@ -0,0 +1,852 @@ +/* + * QLogic iSCSI HBA Driver + * Copyright (c) 2003-2006 QLogic Corporation + * + * See LICENSE.qla4xxx for copyright and licensing details. + */ + +#ifndef _QLA4X_FW_H +#define _QLA4X_FW_H + + +#define MAX_PRST_DEV_DB_ENTRIES 64 +#define MIN_DISC_DEV_DB_ENTRY MAX_PRST_DEV_DB_ENTRIES +#define MAX_DEV_DB_ENTRIES 512 + +/************************************************************************* + * + * ISP 4010 I/O Register Set Structure and Definitions + * + *************************************************************************/ + +struct port_ctrl_stat_regs { + __le32 ext_hw_conf; /* 80 x50 R/W */ + __le32 intChipConfiguration; /* 84 x54 */ + __le32 port_ctrl; /* 88 x58 */ + __le32 port_status; /* 92 x5c */ + __le32 HostPrimMACHi; /* 96 x60 */ + __le32 HostPrimMACLow; /* 100 x64 */ + __le32 HostSecMACHi; /* 104 x68 */ + __le32 HostSecMACLow; /* 108 x6c */ + __le32 EPPrimMACHi; /* 112 x70 */ + __le32 EPPrimMACLow; /* 116 x74 */ + __le32 EPSecMACHi; /* 120 x78 */ + __le32 EPSecMACLow; /* 124 x7c */ + __le32 HostPrimIPHi; /* 128 x80 */ + __le32 HostPrimIPMidHi; /* 132 x84 */ + __le32 HostPrimIPMidLow; /* 136 x88 */ + __le32 HostPrimIPLow; /* 140 x8c */ + __le32 HostSecIPHi; /* 144 x90 */ + __le32 HostSecIPMidHi; /* 148 x94 */ + __le32 HostSecIPMidLow; /* 152 x98 */ + __le32 HostSecIPLow; /* 156 x9c */ + __le32 EPPrimIPHi; /* 160 xa0 */ + __le32 EPPrimIPMidHi; /* 164 xa4 */ + __le32 EPPrimIPMidLow; /* 168 xa8 */ + __le32 EPPrimIPLow; /* 172 xac */ + __le32 EPSecIPHi; /* 176 xb0 */ + __le32 EPSecIPMidHi; /* 180 xb4 */ + __le32 EPSecIPMidLow; /* 184 xb8 */ + __le32 EPSecIPLow; /* 188 xbc */ + __le32 IPReassemblyTimeout; /* 192 xc0 */ + __le32 EthMaxFramePayload; /* 196 xc4 */ + __le32 TCPMaxWindowSize; /* 200 xc8 */ + __le32 TCPCurrentTimestampHi; /* 204 xcc */ + __le32 TCPCurrentTimestampLow; /* 208 xd0 */ + __le32 LocalRAMAddress; /* 212 xd4 */ + __le32 LocalRAMData; /* 216 xd8 */ + __le32 PCSReserved1; /* 220 xdc */ + __le32 gp_out; /* 224 xe0 */ + __le32 gp_in; /* 228 xe4 */ + __le32 ProbeMuxAddr; /* 232 xe8 */ + __le32 ProbeMuxData; /* 236 xec */ + __le32 ERMQueueBaseAddr0; /* 240 xf0 */ + __le32 ERMQueueBaseAddr1; /* 244 xf4 */ + __le32 MACConfiguration; /* 248 xf8 */ + __le32 port_err_status; /* 252 xfc COR */ +}; + +struct host_mem_cfg_regs { + __le32 NetRequestQueueOut; /* 80 x50 */ + __le32 NetRequestQueueOutAddrHi; /* 84 x54 */ + __le32 NetRequestQueueOutAddrLow; /* 88 x58 */ + __le32 NetRequestQueueBaseAddrHi; /* 92 x5c */ + __le32 NetRequestQueueBaseAddrLow; /* 96 x60 */ + __le32 NetRequestQueueLength; /* 100 x64 */ + __le32 NetResponseQueueIn; /* 104 x68 */ + __le32 NetResponseQueueInAddrHi; /* 108 x6c */ + __le32 NetResponseQueueInAddrLow; /* 112 x70 */ + __le32 NetResponseQueueBaseAddrHi; /* 116 x74 */ + __le32 NetResponseQueueBaseAddrLow; /* 120 x78 */ + __le32 NetResponseQueueLength; /* 124 x7c */ + __le32 req_q_out; /* 128 x80 */ + __le32 RequestQueueOutAddrHi; /* 132 x84 */ + __le32 RequestQueueOutAddrLow; /* 136 x88 */ + __le32 RequestQueueBaseAddrHi; /* 140 x8c */ + __le32 RequestQueueBaseAddrLow; /* 144 x90 */ + __le32 RequestQueueLength; /* 148 x94 */ + __le32 ResponseQueueIn; /* 152 x98 */ + __le32 ResponseQueueInAddrHi; /* 156 x9c */ + __le32 ResponseQueueInAddrLow; /* 160 xa0 */ + __le32 ResponseQueueBaseAddrHi; /* 164 xa4 */ + __le32 ResponseQueueBaseAddrLow; /* 168 xa8 */ + __le32 ResponseQueueLength; /* 172 xac */ + __le32 NetRxLargeBufferQueueOut; /* 176 xb0 */ + __le32 NetRxLargeBufferQueueBaseAddrHi; /* 180 xb4 */ + __le32 NetRxLargeBufferQueueBaseAddrLow; /* 184 xb8 */ + __le32 NetRxLargeBufferQueueLength; /* 188 xbc */ + __le32 NetRxLargeBufferLength; /* 192 xc0 */ + __le32 NetRxSmallBufferQueueOut; /* 196 xc4 */ + __le32 NetRxSmallBufferQueueBaseAddrHi; /* 200 xc8 */ + __le32 NetRxSmallBufferQueueBaseAddrLow; /* 204 xcc */ + __le32 NetRxSmallBufferQueueLength; /* 208 xd0 */ + __le32 NetRxSmallBufferLength; /* 212 xd4 */ + __le32 HMCReserved0[10]; /* 216 xd8 */ +}; + +struct local_ram_cfg_regs { + __le32 BufletSize; /* 80 x50 */ + __le32 BufletMaxCount; /* 84 x54 */ + __le32 BufletCurrCount; /* 88 x58 */ + __le32 BufletPauseThresholdCount; /* 92 x5c */ + __le32 BufletTCPWinThresholdHi; /* 96 x60 */ + __le32 BufletTCPWinThresholdLow; /* 100 x64 */ + __le32 IPHashTableBaseAddr; /* 104 x68 */ + __le32 IPHashTableSize; /* 108 x6c */ + __le32 TCPHashTableBaseAddr; /* 112 x70 */ + __le32 TCPHashTableSize; /* 116 x74 */ + __le32 NCBAreaBaseAddr; /* 120 x78 */ + __le32 NCBMaxCount; /* 124 x7c */ + __le32 NCBCurrCount; /* 128 x80 */ + __le32 DRBAreaBaseAddr; /* 132 x84 */ + __le32 DRBMaxCount; /* 136 x88 */ + __le32 DRBCurrCount; /* 140 x8c */ + __le32 LRCReserved[28]; /* 144 x90 */ +}; + +struct prot_stat_regs { + __le32 MACTxFrameCount; /* 80 x50 R */ + __le32 MACTxByteCount; /* 84 x54 R */ + __le32 MACRxFrameCount; /* 88 x58 R */ + __le32 MACRxByteCount; /* 92 x5c R */ + __le32 MACCRCErrCount; /* 96 x60 R */ + __le32 MACEncErrCount; /* 100 x64 R */ + __le32 MACRxLengthErrCount; /* 104 x68 R */ + __le32 IPTxPacketCount; /* 108 x6c R */ + __le32 IPTxByteCount; /* 112 x70 R */ + __le32 IPTxFragmentCount; /* 116 x74 R */ + __le32 IPRxPacketCount; /* 120 x78 R */ + __le32 IPRxByteCount; /* 124 x7c R */ + __le32 IPRxFragmentCount; /* 128 x80 R */ + __le32 IPDatagramReassemblyCount; /* 132 x84 R */ + __le32 IPV6RxPacketCount; /* 136 x88 R */ + __le32 IPErrPacketCount; /* 140 x8c R */ + __le32 IPReassemblyErrCount; /* 144 x90 R */ + __le32 TCPTxSegmentCount; /* 148 x94 R */ + __le32 TCPTxByteCount; /* 152 x98 R */ + __le32 TCPRxSegmentCount; /* 156 x9c R */ + __le32 TCPRxByteCount; /* 160 xa0 R */ + __le32 TCPTimerExpCount; /* 164 xa4 R */ + __le32 TCPRxAckCount; /* 168 xa8 R */ + __le32 TCPTxAckCount; /* 172 xac R */ + __le32 TCPRxErrOOOCount; /* 176 xb0 R */ + __le32 PSReserved0; /* 180 xb4 */ + __le32 TCPRxWindowProbeUpdateCount; /* 184 xb8 R */ + __le32 ECCErrCorrectionCount; /* 188 xbc R */ + __le32 PSReserved1[16]; /* 192 xc0 */ +}; + + +/* remote register set (access via PCI memory read/write) */ +struct isp_reg { +#define MBOX_REG_COUNT 8 + __le32 mailbox[MBOX_REG_COUNT]; + + __le32 flash_address; /* 0x20 */ + __le32 flash_data; + __le32 ctrl_status; + + union { + struct { + __le32 nvram; + __le32 reserved1[2]; /* 0x30 */ + } __attribute__ ((packed)) isp4010; + struct { + __le32 intr_mask; + __le32 nvram; /* 0x30 */ + __le32 semaphore; + } __attribute__ ((packed)) isp4022; + } u1; + + __le32 req_q_in; /* SCSI Request Queue Producer Index */ + __le32 rsp_q_out; /* SCSI Completion Queue Consumer Index */ + + __le32 reserved2[4]; /* 0x40 */ + + union { + struct { + __le32 ext_hw_conf; /* 0x50 */ + __le32 flow_ctrl; + __le32 port_ctrl; + __le32 port_status; + + __le32 reserved3[8]; /* 0x60 */ + + __le32 req_q_out; /* 0x80 */ + + __le32 reserved4[23]; /* 0x84 */ + + __le32 gp_out; /* 0xe0 */ + __le32 gp_in; + + __le32 reserved5[5]; + + __le32 port_err_status; /* 0xfc */ + } __attribute__ ((packed)) isp4010; + struct { + union { + struct port_ctrl_stat_regs p0; + struct host_mem_cfg_regs p1; + struct local_ram_cfg_regs p2; + struct prot_stat_regs p3; + __le32 r_union[44]; + }; + + } __attribute__ ((packed)) isp4022; + } u2; +}; /* 256 x100 */ + + +/* Semaphore Defines for 4010 */ +#define QL4010_DRVR_SEM_BITS 0x00000030 +#define QL4010_GPIO_SEM_BITS 0x000000c0 +#define QL4010_SDRAM_SEM_BITS 0x00000300 +#define QL4010_PHY_SEM_BITS 0x00000c00 +#define QL4010_NVRAM_SEM_BITS 0x00003000 +#define QL4010_FLASH_SEM_BITS 0x0000c000 + +#define QL4010_DRVR_SEM_MASK 0x00300000 +#define QL4010_GPIO_SEM_MASK 0x00c00000 +#define QL4010_SDRAM_SEM_MASK 0x03000000 +#define QL4010_PHY_SEM_MASK 0x0c000000 +#define QL4010_NVRAM_SEM_MASK 0x30000000 +#define QL4010_FLASH_SEM_MASK 0xc0000000 + +/* Semaphore Defines for 4022 */ +#define QL4022_RESOURCE_MASK_BASE_CODE 0x7 +#define QL4022_RESOURCE_BITS_BASE_CODE 0x4 + + +#define QL4022_DRVR_SEM_MASK (QL4022_RESOURCE_MASK_BASE_CODE << (1+16)) +#define QL4022_DDR_RAM_SEM_MASK (QL4022_RESOURCE_MASK_BASE_CODE << (4+16)) +#define QL4022_PHY_GIO_SEM_MASK (QL4022_RESOURCE_MASK_BASE_CODE << (7+16)) +#define QL4022_NVRAM_SEM_MASK (QL4022_RESOURCE_MASK_BASE_CODE << (10+16)) +#define QL4022_FLASH_SEM_MASK (QL4022_RESOURCE_MASK_BASE_CODE << (13+16)) + + + +/* Page # defines for 4022 */ +#define PORT_CTRL_STAT_PAGE 0 /* 4022 */ +#define HOST_MEM_CFG_PAGE 1 /* 4022 */ +#define LOCAL_RAM_CFG_PAGE 2 /* 4022 */ +#define PROT_STAT_PAGE 3 /* 4022 */ + +/* Register Mask - sets corresponding mask bits in the upper word */ +static inline uint32_t set_rmask(uint32_t val) +{ + return (val & 0xffff) | (val << 16); +} + + +static inline uint32_t clr_rmask(uint32_t val) +{ + return 0 | (val << 16); +} + +/* ctrl_status definitions */ +#define CSR_SCSI_PAGE_SELECT 0x00000003 +#define CSR_SCSI_INTR_ENABLE 0x00000004 /* 4010 */ +#define CSR_SCSI_RESET_INTR 0x00000008 +#define CSR_SCSI_COMPLETION_INTR 0x00000010 +#define CSR_SCSI_PROCESSOR_INTR 0x00000020 +#define CSR_INTR_RISC 0x00000040 +#define CSR_BOOT_ENABLE 0x00000080 +#define CSR_NET_PAGE_SELECT 0x00000300 /* 4010 */ +#define CSR_FUNC_NUM 0x00000700 /* 4022 */ +#define CSR_NET_RESET_INTR 0x00000800 /* 4010 */ +#define CSR_FORCE_SOFT_RESET 0x00002000 /* 4022 */ +#define CSR_FATAL_ERROR 0x00004000 +#define CSR_SOFT_RESET 0x00008000 +#define ISP_CONTROL_FN_MASK CSR_FUNC_NUM +#define ISP_CONTROL_FN0_SCSI 0x0500 +#define ISP_CONTROL_FN1_SCSI 0x0700 + +#define INTR_PENDING (CSR_SCSI_COMPLETION_INTR |\ + CSR_SCSI_PROCESSOR_INTR |\ + CSR_SCSI_RESET_INTR) + +/* ISP InterruptMask definitions */ +#define IMR_SCSI_INTR_ENABLE 0x00000004 /* 4022 */ + +/* ISP 4022 nvram definitions */ +#define NVR_WRITE_ENABLE 0x00000010 /* 4022 */ + +/* ISP port_status definitions */ + +/* ISP Semaphore definitions */ + +/* ISP General Purpose Output definitions */ +#define GPOR_TOPCAT_RESET 0x00000004 + +/* shadow registers (DMA'd from HA to system memory. read only) */ +struct shadow_regs { + /* SCSI Request Queue Consumer Index */ + __le32 req_q_out; /* 0 x0 R */ + + /* SCSI Completion Queue Producer Index */ + __le32 rsp_q_in; /* 4 x4 R */ +}; /* 8 x8 */ + + +/* External hardware configuration register */ +union external_hw_config_reg { + struct { + /* FIXME: Do we even need this? All values are + * referred to by 16 bit quantities. Platform and + * endianess issues. */ + __le32 bReserved0:1; + __le32 bSDRAMProtectionMethod:2; + __le32 bSDRAMBanks:1; + __le32 bSDRAMChipWidth:1; + __le32 bSDRAMChipSize:2; + __le32 bParityDisable:1; + __le32 bExternalMemoryType:1; + __le32 bFlashBIOSWriteEnable:1; + __le32 bFlashUpperBankSelect:1; + __le32 bWriteBurst:2; + __le32 bReserved1:3; + __le32 bMask:16; + }; + uint32_t Asuint32_t; +}; + +/************************************************************************* + * + * Mailbox Commands Structures and Definitions + * + *************************************************************************/ + +/* Mailbox command definitions */ +#define MBOX_CMD_ABOUT_FW 0x0009 +#define MBOX_CMD_LUN_RESET 0x0016 +#define MBOX_CMD_GET_FW_STATUS 0x001F +#define MBOX_CMD_SET_ISNS_SERVICE 0x0021 +#define ISNS_DISABLE 0 +#define ISNS_ENABLE 1 +#define MBOX_CMD_READ_FLASH 0x0026 +#define MBOX_CMD_CLEAR_DATABASE_ENTRY 0x0031 +#define MBOX_CMD_CONN_CLOSE_SESS_LOGOUT 0x0056 +#define LOGOUT_OPTION_CLOSE_SESSION 0x01 +#define LOGOUT_OPTION_RELOGIN 0x02 +#define MBOX_CMD_EXECUTE_IOCB_A64 0x005A +#define MBOX_CMD_INITIALIZE_FIRMWARE 0x0060 +#define MBOX_CMD_GET_INIT_FW_CTRL_BLOCK 0x0061 +#define MBOX_CMD_REQUEST_DATABASE_ENTRY 0x0062 +#define MBOX_CMD_SET_DATABASE_ENTRY 0x0063 +#define MBOX_CMD_GET_DATABASE_ENTRY 0x0064 +#define DDB_DS_UNASSIGNED 0x00 +#define DDB_DS_NO_CONNECTION_ACTIVE 0x01 +#define DDB_DS_SESSION_ACTIVE 0x04 +#define DDB_DS_SESSION_FAILED 0x06 +#define DDB_DS_LOGIN_IN_PROCESS 0x07 +#define MBOX_CMD_GET_FW_STATE 0x0069 + +/* Mailbox 1 */ +#define FW_STATE_READY 0x0000 +#define FW_STATE_CONFIG_WAIT 0x0001 +#define FW_STATE_ERROR 0x0004 +#define FW_STATE_DHCP_IN_PROGRESS 0x0008 + +/* Mailbox 3 */ +#define FW_ADDSTATE_OPTICAL_MEDIA 0x0001 +#define FW_ADDSTATE_DHCP_ENABLED 0x0002 +#define FW_ADDSTATE_LINK_UP 0x0010 +#define FW_ADDSTATE_ISNS_SVC_ENABLED 0x0020 +#define MBOX_CMD_GET_DATABASE_ENTRY_DEFAULTS 0x006B +#define MBOX_CMD_CONN_OPEN_SESS_LOGIN 0x0074 +#define MBOX_CMD_GET_CRASH_RECORD 0x0076 /* 4010 only */ +#define MBOX_CMD_GET_CONN_EVENT_LOG 0x0077 + +/* Mailbox status definitions */ +#define MBOX_COMPLETION_STATUS 4 +#define MBOX_STS_BUSY 0x0007 +#define MBOX_STS_INTERMEDIATE_COMPLETION 0x1000 +#define MBOX_STS_COMMAND_COMPLETE 0x4000 +#define MBOX_STS_COMMAND_ERROR 0x4005 + +#define MBOX_ASYNC_EVENT_STATUS 8 +#define MBOX_ASTS_SYSTEM_ERROR 0x8002 +#define MBOX_ASTS_REQUEST_TRANSFER_ERROR 0x8003 +#define MBOX_ASTS_RESPONSE_TRANSFER_ERROR 0x8004 +#define MBOX_ASTS_PROTOCOL_STATISTIC_ALARM 0x8005 +#define MBOX_ASTS_SCSI_COMMAND_PDU_REJECTED 0x8006 +#define MBOX_ASTS_LINK_UP 0x8010 +#define MBOX_ASTS_LINK_DOWN 0x8011 +#define MBOX_ASTS_DATABASE_CHANGED 0x8014 +#define MBOX_ASTS_UNSOLICITED_PDU_RECEIVED 0x8015 +#define MBOX_ASTS_SELF_TEST_FAILED 0x8016 +#define MBOX_ASTS_LOGIN_FAILED 0x8017 +#define MBOX_ASTS_DNS 0x8018 +#define MBOX_ASTS_HEARTBEAT 0x8019 +#define MBOX_ASTS_NVRAM_INVALID 0x801A +#define MBOX_ASTS_MAC_ADDRESS_CHANGED 0x801B +#define MBOX_ASTS_IP_ADDRESS_CHANGED 0x801C +#define MBOX_ASTS_DHCP_LEASE_EXPIRED 0x801D +#define MBOX_ASTS_DHCP_LEASE_ACQUIRED 0x801F +#define MBOX_ASTS_ISNS_UNSOLICITED_PDU_RECEIVED 0x8021 +#define ISNS_EVENT_DATA_RECEIVED 0x0000 +#define ISNS_EVENT_CONNECTION_OPENED 0x0001 +#define ISNS_EVENT_CONNECTION_FAILED 0x0002 +#define MBOX_ASTS_IPSEC_SYSTEM_FATAL_ERROR 0x8022 +#define MBOX_ASTS_SUBNET_STATE_CHANGE 0x8027 + +/*************************************************************************/ + +/* Host Adapter Initialization Control Block (from host) */ +struct init_fw_ctrl_blk { + uint8_t Version; /* 00 */ + uint8_t Control; /* 01 */ + + uint16_t FwOptions; /* 02-03 */ +#define FWOPT_HEARTBEAT_ENABLE 0x1000 +#define FWOPT_SESSION_MODE 0x0040 +#define FWOPT_INITIATOR_MODE 0x0020 +#define FWOPT_TARGET_MODE 0x0010 + + uint16_t ExecThrottle; /* 04-05 */ + uint8_t RetryCount; /* 06 */ + uint8_t RetryDelay; /* 07 */ + uint16_t MaxEthFrPayloadSize; /* 08-09 */ + uint16_t AddFwOptions; /* 0A-0B */ + + uint8_t HeartbeatInterval; /* 0C */ + uint8_t InstanceNumber; /* 0D */ + uint16_t RES2; /* 0E-0F */ + uint16_t ReqQConsumerIndex; /* 10-11 */ + uint16_t ComplQProducerIndex; /* 12-13 */ + uint16_t ReqQLen; /* 14-15 */ + uint16_t ComplQLen; /* 16-17 */ + uint32_t ReqQAddrLo; /* 18-1B */ + uint32_t ReqQAddrHi; /* 1C-1F */ + uint32_t ComplQAddrLo; /* 20-23 */ + uint32_t ComplQAddrHi; /* 24-27 */ + uint32_t ShadowRegBufAddrLo; /* 28-2B */ + uint32_t ShadowRegBufAddrHi; /* 2C-2F */ + + uint16_t iSCSIOptions; /* 30-31 */ + + uint16_t TCPOptions; /* 32-33 */ + + uint16_t IPOptions; /* 34-35 */ + + uint16_t MaxPDUSize; /* 36-37 */ + uint16_t RcvMarkerInt; /* 38-39 */ + uint16_t SndMarkerInt; /* 3A-3B */ + uint16_t InitMarkerlessInt; /* 3C-3D */ + uint16_t FirstBurstSize; /* 3E-3F */ + uint16_t DefaultTime2Wait; /* 40-41 */ + uint16_t DefaultTime2Retain; /* 42-43 */ + uint16_t MaxOutStndngR2T; /* 44-45 */ + uint16_t KeepAliveTimeout; /* 46-47 */ + uint16_t PortNumber; /* 48-49 */ + uint16_t MaxBurstSize; /* 4A-4B */ + uint32_t RES4; /* 4C-4F */ + uint8_t IPAddr[4]; /* 50-53 */ + uint8_t RES5[12]; /* 54-5F */ + uint8_t SubnetMask[4]; /* 60-63 */ + uint8_t RES6[12]; /* 64-6F */ + uint8_t GatewayIPAddr[4]; /* 70-73 */ + uint8_t RES7[12]; /* 74-7F */ + uint8_t PriDNSIPAddr[4]; /* 80-83 */ + uint8_t SecDNSIPAddr[4]; /* 84-87 */ + uint8_t RES8[8]; /* 88-8F */ + uint8_t Alias[32]; /* 90-AF */ + uint8_t TargAddr[8]; /* B0-B7 *//* /FIXME: Remove?? */ + uint8_t CHAPNameSecretsTable[8]; /* B8-BF */ + uint8_t EthernetMACAddr[6]; /* C0-C5 */ + uint16_t TargetPortalGroup; /* C6-C7 */ + uint8_t SendScale; /* C8 */ + uint8_t RecvScale; /* C9 */ + uint8_t TypeOfService; /* CA */ + uint8_t Time2Live; /* CB */ + uint16_t VLANPriority; /* CC-CD */ + uint16_t Reserved8; /* CE-CF */ + uint8_t SecIPAddr[4]; /* D0-D3 */ + uint8_t Reserved9[12]; /* D4-DF */ + uint8_t iSNSIPAddr[4]; /* E0-E3 */ + uint16_t iSNSServerPortNumber; /* E4-E5 */ + uint8_t Reserved10[10]; /* E6-EF */ + uint8_t SLPDAIPAddr[4]; /* F0-F3 */ + uint8_t Reserved11[12]; /* F4-FF */ + uint8_t iSCSINameString[256]; /* 100-1FF */ +}; + +/*************************************************************************/ + +struct dev_db_entry { + uint8_t options; /* 00 */ +#define DDB_OPT_DISC_SESSION 0x10 +#define DDB_OPT_TARGET 0x02 /* device is a target */ + + uint8_t control; /* 01 */ + + uint16_t exeThrottle; /* 02-03 */ + uint16_t exeCount; /* 04-05 */ + uint8_t retryCount; /* 06 */ + uint8_t retryDelay; /* 07 */ + uint16_t iSCSIOptions; /* 08-09 */ + + uint16_t TCPOptions; /* 0A-0B */ + + uint16_t IPOptions; /* 0C-0D */ + + uint16_t maxPDUSize; /* 0E-0F */ + uint16_t rcvMarkerInt; /* 10-11 */ + uint16_t sndMarkerInt; /* 12-13 */ + uint16_t iSCSIMaxSndDataSegLen; /* 14-15 */ + uint16_t firstBurstSize; /* 16-17 */ + uint16_t minTime2Wait; /* 18-19 : RA :default_time2wait */ + uint16_t maxTime2Retain; /* 1A-1B */ + uint16_t maxOutstndngR2T; /* 1C-1D */ + uint16_t keepAliveTimeout; /* 1E-1F */ + uint8_t ISID[6]; /* 20-25 big-endian, must be converted + * to little-endian */ + uint16_t TSID; /* 26-27 */ + uint16_t portNumber; /* 28-29 */ + uint16_t maxBurstSize; /* 2A-2B */ + uint16_t taskMngmntTimeout; /* 2C-2D */ + uint16_t reserved1; /* 2E-2F */ + uint8_t ipAddr[0x10]; /* 30-3F */ + uint8_t iSCSIAlias[0x20]; /* 40-5F */ + uint8_t targetAddr[0x20]; /* 60-7F */ + uint8_t userID[0x20]; /* 80-9F */ + uint8_t password[0x20]; /* A0-BF */ + uint8_t iscsiName[0x100]; /* C0-1BF : xxzzy Make this a + * pointer to a string so we + * don't have to reserve soooo + * much RAM */ + uint16_t ddbLink; /* 1C0-1C1 */ + uint16_t CHAPTableIndex; /* 1C2-1C3 */ + uint16_t TargetPortalGroup; /* 1C4-1C5 */ + uint16_t reserved2[2]; /* 1C6-1C7 */ + uint32_t statSN; /* 1C8-1CB */ + uint32_t expStatSN; /* 1CC-1CF */ + uint16_t reserved3[0x2C]; /* 1D0-1FB */ + uint16_t ddbValidCookie; /* 1FC-1FD */ + uint16_t ddbValidSize; /* 1FE-1FF */ +}; + +/*************************************************************************/ + +/* Flash definitions */ + +#define FLASH_OFFSET_SYS_INFO 0x02000000 +#define FLASH_DEFAULTBLOCKSIZE 0x20000 +#define FLASH_EOF_OFFSET (FLASH_DEFAULTBLOCKSIZE-8) /* 4 bytes + * for EOF + * signature */ + +struct sys_info_phys_addr { + uint8_t address[6]; /* 00-05 */ + uint8_t filler[2]; /* 06-07 */ +}; + +struct flash_sys_info { + uint32_t cookie; /* 00-03 */ + uint32_t physAddrCount; /* 04-07 */ + struct sys_info_phys_addr physAddr[4]; /* 08-27 */ + uint8_t vendorId[128]; /* 28-A7 */ + uint8_t productId[128]; /* A8-127 */ + uint32_t serialNumber; /* 128-12B */ + + /* PCI Configuration values */ + uint32_t pciDeviceVendor; /* 12C-12F */ + uint32_t pciDeviceId; /* 130-133 */ + uint32_t pciSubsysVendor; /* 134-137 */ + uint32_t pciSubsysId; /* 138-13B */ + + /* This validates version 1. */ + uint32_t crumbs; /* 13C-13F */ + + uint32_t enterpriseNumber; /* 140-143 */ + + uint32_t mtu; /* 144-147 */ + uint32_t reserved0; /* 148-14b */ + uint32_t crumbs2; /* 14c-14f */ + uint8_t acSerialNumber[16]; /* 150-15f */ + uint32_t crumbs3; /* 160-16f */ + + /* Leave this last in the struct so it is declared invalid if + * any new items are added. + */ + uint32_t reserved1[39]; /* 170-1ff */ +}; /* 200 */ + +struct crash_record { + uint16_t fw_major_version; /* 00 - 01 */ + uint16_t fw_minor_version; /* 02 - 03 */ + uint16_t fw_patch_version; /* 04 - 05 */ + uint16_t fw_build_version; /* 06 - 07 */ + + uint8_t build_date[16]; /* 08 - 17 */ + uint8_t build_time[16]; /* 18 - 27 */ + uint8_t build_user[16]; /* 28 - 37 */ + uint8_t card_serial_num[16]; /* 38 - 47 */ + + uint32_t time_of_crash_in_secs; /* 48 - 4B */ + uint32_t time_of_crash_in_ms; /* 4C - 4F */ + + uint16_t out_RISC_sd_num_frames; /* 50 - 51 */ + uint16_t OAP_sd_num_words; /* 52 - 53 */ + uint16_t IAP_sd_num_frames; /* 54 - 55 */ + uint16_t in_RISC_sd_num_words; /* 56 - 57 */ + + uint8_t reserved1[28]; /* 58 - 7F */ + + uint8_t out_RISC_reg_dump[256]; /* 80 -17F */ + uint8_t in_RISC_reg_dump[256]; /*180 -27F */ + uint8_t in_out_RISC_stack_dump[0]; /*280 - ??? */ +}; + +struct conn_event_log_entry { +#define MAX_CONN_EVENT_LOG_ENTRIES 100 + uint32_t timestamp_sec; /* 00 - 03 seconds since boot */ + uint32_t timestamp_ms; /* 04 - 07 milliseconds since boot */ + uint16_t device_index; /* 08 - 09 */ + uint16_t fw_conn_state; /* 0A - 0B */ + uint8_t event_type; /* 0C - 0C */ + uint8_t error_code; /* 0D - 0D */ + uint16_t error_code_detail; /* 0E - 0F */ + uint8_t num_consecutive_events; /* 10 - 10 */ + uint8_t rsvd[3]; /* 11 - 13 */ +}; + +/************************************************************************* + * + * IOCB Commands Structures and Definitions + * + *************************************************************************/ +#define IOCB_MAX_CDB_LEN 16 /* Bytes in a CBD */ +#define IOCB_MAX_SENSEDATA_LEN 32 /* Bytes of sense data */ + +/* IOCB header structure */ +struct qla4_header { + uint8_t entryType; +#define ET_STATUS 0x03 +#define ET_MARKER 0x04 +#define ET_CONT_T1 0x0A +#define ET_STATUS_CONTINUATION 0x10 +#define ET_CMND_T3 0x19 +#define ET_PASSTHRU0 0x3A +#define ET_PASSTHRU_STATUS 0x3C + + uint8_t entryStatus; + uint8_t systemDefined; + uint8_t entryCount; + + /* SyetemDefined definition */ +}; + +/* Generic queue entry structure*/ +struct queue_entry { + uint8_t data[60]; + uint32_t signature; + +}; + +/* 64 bit addressing segment counts*/ + +#define COMMAND_SEG_A64 1 +#define CONTINUE_SEG_A64 5 + +/* 64 bit addressing segment definition*/ + +struct data_seg_a64 { + struct { + uint32_t addrLow; + uint32_t addrHigh; + + } base; + + uint32_t count; + +}; + +/* Command Type 3 entry structure*/ + +struct command_t3_entry { + struct qla4_header hdr; /* 00-03 */ + + uint32_t handle; /* 04-07 */ + uint16_t target; /* 08-09 */ + uint16_t connection_id; /* 0A-0B */ + + uint8_t control_flags; /* 0C */ + + /* data direction (bits 5-6) */ +#define CF_WRITE 0x20 +#define CF_READ 0x40 +#define CF_NO_DATA 0x00 + + /* task attributes (bits 2-0) */ +#define CF_HEAD_TAG 0x03 +#define CF_ORDERED_TAG 0x02 +#define CF_SIMPLE_TAG 0x01 + + /* STATE FLAGS FIELD IS A PLACE HOLDER. THE FW WILL SET BITS + * IN THIS FIELD AS THE COMMAND IS PROCESSED. WHEN THE IOCB IS + * CHANGED TO AN IOSB THIS FIELD WILL HAVE THE STATE FLAGS SET + * PROPERLY. + */ + uint8_t state_flags; /* 0D */ + uint8_t cmdRefNum; /* 0E */ + uint8_t reserved1; /* 0F */ + uint8_t cdb[IOCB_MAX_CDB_LEN]; /* 10-1F */ + struct scsi_lun lun; /* FCP LUN (BE). */ + uint32_t cmdSeqNum; /* 28-2B */ + uint16_t timeout; /* 2C-2D */ + uint16_t dataSegCnt; /* 2E-2F */ + uint32_t ttlByteCnt; /* 30-33 */ + struct data_seg_a64 dataseg[COMMAND_SEG_A64]; /* 34-3F */ + +}; + + +/* Continuation Type 1 entry structure*/ +struct continuation_t1_entry { + struct qla4_header hdr; + + struct data_seg_a64 dataseg[CONTINUE_SEG_A64]; + +}; + +/* Parameterize for 64 or 32 bits */ +#define COMMAND_SEG COMMAND_SEG_A64 +#define CONTINUE_SEG CONTINUE_SEG_A64 + +#define ET_COMMAND ET_CMND_T3 +#define ET_CONTINUE ET_CONT_T1 + +/* Marker entry structure*/ +struct marker_entry { + struct qla4_header hdr; /* 00-03 */ + + uint32_t system_defined; /* 04-07 */ + uint16_t target; /* 08-09 */ + uint16_t modifier; /* 0A-0B */ +#define MM_LUN_RESET 0 + + uint16_t flags; /* 0C-0D */ + uint16_t reserved1; /* 0E-0F */ + struct scsi_lun lun; /* FCP LUN (BE). */ + uint64_t reserved2; /* 18-1F */ + uint64_t reserved3; /* 20-27 */ + uint64_t reserved4; /* 28-2F */ + uint64_t reserved5; /* 30-37 */ + uint64_t reserved6; /* 38-3F */ +}; + +/* Status entry structure*/ +struct status_entry { + struct qla4_header hdr; /* 00-03 */ + + uint32_t handle; /* 04-07 */ + + uint8_t scsiStatus; /* 08 */ +#define SCSI_CHECK_CONDITION 0x02 + + uint8_t iscsiFlags; /* 09 */ +#define ISCSI_FLAG_RESIDUAL_UNDER 0x02 +#define ISCSI_FLAG_RESIDUAL_OVER 0x04 + + uint8_t iscsiResponse; /* 0A */ + + uint8_t completionStatus; /* 0B */ +#define SCS_COMPLETE 0x00 +#define SCS_INCOMPLETE 0x01 +#define SCS_RESET_OCCURRED 0x04 +#define SCS_ABORTED 0x05 +#define SCS_TIMEOUT 0x06 +#define SCS_DATA_OVERRUN 0x07 +#define SCS_DATA_UNDERRUN 0x15 +#define SCS_QUEUE_FULL 0x1C +#define SCS_DEVICE_UNAVAILABLE 0x28 +#define SCS_DEVICE_LOGGED_OUT 0x29 + + uint8_t reserved1; /* 0C */ + + /* state_flags MUST be at the same location as state_flags in + * the Command_T3/4_Entry */ + uint8_t state_flags; /* 0D */ + + uint16_t senseDataByteCnt; /* 0E-0F */ + uint32_t residualByteCnt; /* 10-13 */ + uint32_t bidiResidualByteCnt; /* 14-17 */ + uint32_t expSeqNum; /* 18-1B */ + uint32_t maxCmdSeqNum; /* 1C-1F */ + uint8_t senseData[IOCB_MAX_SENSEDATA_LEN]; /* 20-3F */ + +}; + +struct pdu_entry { + uint8_t *Buff; + uint32_t BuffLen; + uint32_t SendBuffLen; + uint32_t RecvBuffLen; + struct pdu_entry *Next; + dma_addr_t DmaBuff; +}; + +struct passthru0 { + struct qla4_header hdr; /* 00-03 */ + uint32_t handle; /* 04-07 */ + uint16_t target; /* 08-09 */ + uint16_t connectionID; /* 0A-0B */ +#define ISNS_DEFAULT_SERVER_CONN_ID ((uint16_t)0x8000) + + uint16_t controlFlags; /* 0C-0D */ +#define PT_FLAG_ETHERNET_FRAME 0x8000 +#define PT_FLAG_ISNS_PDU 0x8000 +#define PT_FLAG_SEND_BUFFER 0x0200 +#define PT_FLAG_WAIT_4_RESPONSE 0x0100 + + uint16_t timeout; /* 0E-0F */ +#define PT_DEFAULT_TIMEOUT 30 /* seconds */ + + struct data_seg_a64 outDataSeg64; /* 10-1B */ + uint32_t res1; /* 1C-1F */ + struct data_seg_a64 inDataSeg64; /* 20-2B */ + uint8_t res2[20]; /* 2C-3F */ +}; + +struct passthru_status { + struct qla4_header hdr; /* 00-03 */ + uint32_t handle; /* 04-07 */ + uint16_t target; /* 08-09 */ + uint16_t connectionID; /* 0A-0B */ + + uint8_t completionStatus; /* 0C */ +#define PASSTHRU_STATUS_COMPLETE 0x01 + + uint8_t residualFlags; /* 0D */ + + uint16_t timeout; /* 0E-0F */ + uint16_t portNumber; /* 10-11 */ + uint8_t res1[10]; /* 12-1B */ + uint32_t outResidual; /* 1C-1F */ + uint8_t res2[12]; /* 20-2B */ + uint32_t inResidual; /* 2C-2F */ + uint8_t res4[16]; /* 30-3F */ +}; + +#endif /* _QLA4X_FW_H */ diff -Naurp linux-2.6.17.noarch/drivers/scsi/qla4xxx/ql4_glbl.h linux-2.6.17.noarch.qla4xxx/drivers/scsi/qla4xxx/ql4_glbl.h --- linux-2.6.17.noarch/drivers/scsi/qla4xxx/ql4_glbl.h 1969-12-31 19:00:00.000000000 -0500 +++ linux-2.6.17.noarch.qla4xxx/drivers/scsi/qla4xxx/ql4_glbl.h 2006-08-17 13:00:03.000000000 -0400 @@ -0,0 +1,80 @@ +/* + * QLogic iSCSI HBA Driver + * Copyright (c) 2003-2006 QLogic Corporation + * + * See LICENSE.qla4xxx for copyright and licensing details. + */ + +#ifndef __QLA4x_GBL_H +#define __QLA4x_GBL_H + +int qla4xxx_send_tgts(struct scsi_qla_host *ha, char *ip, uint16_t port); +int qla4xxx_send_command_to_isp(struct scsi_qla_host *ha, struct srb * srb); +int qla4xxx_initialize_adapter(struct scsi_qla_host * ha, + uint8_t renew_ddb_list); +int qla4xxx_soft_reset(struct scsi_qla_host *ha); +irqreturn_t qla4xxx_intr_handler(int irq, void *dev_id, struct pt_regs *regs); + +void qla4xxx_free_ddb_list(struct scsi_qla_host * ha); +void qla4xxx_process_aen(struct scsi_qla_host * ha, uint8_t process_aen); + +int qla4xxx_get_dhcp_ip_address(struct scsi_qla_host * ha); +int qla4xxx_relogin_device(struct scsi_qla_host * ha, + struct ddb_entry * ddb_entry); +int qla4xxx_reset_lun(struct scsi_qla_host * ha, struct ddb_entry * ddb_entry, + int lun); +int qla4xxx_get_flash(struct scsi_qla_host * ha, dma_addr_t dma_addr, + uint32_t offset, uint32_t len); +int qla4xxx_get_firmware_status(struct scsi_qla_host * ha); +int qla4xxx_get_firmware_state(struct scsi_qla_host * ha); +int qla4xxx_initialize_fw_cb(struct scsi_qla_host * ha); + +/* FIXME: Goodness! this really wants a small struct to hold the + * parameters. On x86 the args will get passed on the stack! */ +int qla4xxx_get_fwddb_entry(struct scsi_qla_host *ha, + uint16_t fw_ddb_index, + struct dev_db_entry *fw_ddb_entry, + dma_addr_t fw_ddb_entry_dma, + uint32_t *num_valid_ddb_entries, + uint32_t *next_ddb_index, + uint32_t *fw_ddb_device_state, + uint32_t *conn_err_detail, + uint16_t *tcp_source_port_num, + uint16_t *connection_id); + +struct ddb_entry * qla4xxx_alloc_ddb(struct scsi_qla_host * ha, + uint32_t fw_ddb_index); +int qla4xxx_set_ddb_entry(struct scsi_qla_host * ha, uint16_t fw_ddb_index, + dma_addr_t fw_ddb_entry_dma); + +void qla4xxx_mark_device_missing(struct scsi_qla_host *ha, + struct ddb_entry *ddb_entry); +u16 rd_nvram_word(struct scsi_qla_host * ha, int offset); +void qla4xxx_get_crash_record(struct scsi_qla_host * ha); +struct ddb_entry *qla4xxx_alloc_sess(struct scsi_qla_host *ha); +int qla4xxx_add_sess(struct ddb_entry *, int); +void qla4xxx_destroy_sess(struct ddb_entry *ddb_entry); +int qla4xxx_conn_close_sess_logout(struct scsi_qla_host * ha, + uint16_t fw_ddb_index, + uint16_t connection_id, + uint16_t option); +int qla4xxx_clear_database_entry(struct scsi_qla_host * ha, + uint16_t fw_ddb_index); +int qla4xxx_is_nvram_configuration_valid(struct scsi_qla_host * ha); +int qla4xxx_get_fw_version(struct scsi_qla_host * ha); +void qla4xxx_interrupt_service_routine(struct scsi_qla_host * ha, + uint32_t intr_status); +int qla4xxx_init_rings(struct scsi_qla_host * ha); +void qla4xxx_dump_buffer(void *b, uint32_t size); +struct srb * qla4xxx_del_from_active_array(struct scsi_qla_host *ha, uint32_t index); +void qla4xxx_srb_compl(struct scsi_qla_host *ha, struct srb *srb); +int qla4xxx_reinitialize_ddb_list(struct scsi_qla_host * ha); +int qla4xxx_process_ddb_changed(struct scsi_qla_host * ha, + uint32_t fw_ddb_index, uint32_t state); + +void qla4xxx_free_pdu(struct scsi_qla_host * ha, struct pdu_entry * pdu); + +extern int extended_error_logging; +extern int ql4xdiscoverywait; +extern int ql4xdontresethba; +#endif /* _QLA4x_GBL_H */ diff -Naurp linux-2.6.17.noarch/drivers/scsi/qla4xxx/ql4_init.c linux-2.6.17.noarch.qla4xxx/drivers/scsi/qla4xxx/ql4_init.c --- linux-2.6.17.noarch/drivers/scsi/qla4xxx/ql4_init.c 1969-12-31 19:00:00.000000000 -0500 +++ linux-2.6.17.noarch.qla4xxx/drivers/scsi/qla4xxx/ql4_init.c 2006-08-17 13:00:14.000000000 -0400 @@ -0,0 +1,1355 @@ +/* + * QLogic iSCSI HBA Driver + * Copyright (c) 2003-2006 QLogic Corporation + * + * See LICENSE.qla4xxx for copyright and licensing details. + */ + +#include "ql4_def.h" + +/* + * QLogic ISP4xxx Hardware Support Function Prototypes. + */ + +static void ql4xxx_set_mac_number(struct scsi_qla_host *ha) +{ + uint32_t value; + uint8_t func_number; + unsigned long flags; + + /* Get the function number */ + spin_lock_irqsave(&ha->hardware_lock, flags); + value = readw(&ha->reg->ctrl_status); + spin_unlock_irqrestore(&ha->hardware_lock, flags); + + func_number = (uint8_t) ((value >> 4) & 0x30); + switch (value & ISP_CONTROL_FN_MASK) { + case ISP_CONTROL_FN0_SCSI: + ha->mac_index = 1; + break; + case ISP_CONTROL_FN1_SCSI: + ha->mac_index = 3; + break; + default: + DEBUG2(printk("scsi%ld: %s: Invalid function number, " + "ispControlStatus = 0x%x\n", ha->host_no, + __func__, value)); + break; + } + DEBUG2(printk("scsi%ld: %s: mac_index %d.\n", ha->host_no, __func__, + ha->mac_index)); +} + +/** + * qla4xxx_free_ddb - deallocate ddb + * @ha: pointer to host adapter structure. + * @ddb_entry: pointer to device database entry + * + * This routine deallocates and unlinks the specified ddb_entry from the + * adapter's + **/ +void qla4xxx_free_ddb(struct scsi_qla_host *ha, struct ddb_entry *ddb_entry) +{ + /* Remove device entry from list */ + list_del_init(&ddb_entry->list); + + /* Remove device pointer from index mapping arrays */ + ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] = + (struct ddb_entry *) INVALID_ENTRY; + ha->tot_ddbs--; + + /* Free memory and scsi-ml struct for device entry */ + qla4xxx_destroy_sess(ddb_entry); +} + +/** + * qla4xxx_free_ddb_list - deallocate all ddbs + * @ha: pointer to host adapter structure. + * + * This routine deallocates and removes all devices on the sppecified adapter. + **/ +void qla4xxx_free_ddb_list(struct scsi_qla_host *ha) +{ + struct list_head *ptr; + struct ddb_entry *ddb_entry; + + while (!list_empty(&ha->ddb_list)) { + ptr = ha->ddb_list.next; + /* Free memory for device entry and remove */ + ddb_entry = list_entry(ptr, struct ddb_entry, list); + qla4xxx_free_ddb(ha, ddb_entry); + } +} + +/** + * qla4xxx_init_rings - initialize hw queues + * @ha: pointer to host adapter structure. + * + * This routine initializes the internal queues for the specified adapter. + * The QLA4010 requires us to restart the queues at index 0. + * The QLA4000 doesn't care, so just default to QLA4010's requirement. + **/ +int qla4xxx_init_rings(struct scsi_qla_host *ha) +{ + uint16_t i; + unsigned long flags = 0; + + /* Initialize request queue. */ + spin_lock_irqsave(&ha->hardware_lock, flags); + ha->request_out = 0; + ha->request_in = 0; + ha->request_ptr = &ha->request_ring[ha->request_in]; + ha->req_q_count = REQUEST_QUEUE_DEPTH; + + /* Initialize response queue. */ + ha->response_in = 0; + ha->response_out = 0; + ha->response_ptr = &ha->response_ring[ha->response_out]; + + /* + * Initialize DMA Shadow registers. The firmware is really supposed to + * take care of this, but on some uniprocessor systems, the shadow + * registers aren't cleared-- causing the interrupt_handler to think + * there are responses to be processed when there aren't. + */ + ha->shadow_regs->req_q_out = __constant_cpu_to_le32(0); + ha->shadow_regs->rsp_q_in = __constant_cpu_to_le32(0); + wmb(); + + writel(0, &ha->reg->req_q_in); + writel(0, &ha->reg->rsp_q_out); + readl(&ha->reg->rsp_q_out); + + /* Initialize active array */ + for (i = 0; i < MAX_SRBS; i++) + ha->active_srb_array[i] = NULL; + + spin_unlock_irqrestore(&ha->hardware_lock, flags); + + return QLA_SUCCESS; +} + +/** + * qla4xxx_validate_mac_address - validate adapter MAC address(es) + * @ha: pointer to host adapter structure. + * + **/ +static int qla4xxx_validate_mac_address(struct scsi_qla_host *ha) +{ + struct flash_sys_info *sys_info; + dma_addr_t sys_info_dma; + int status = QLA_ERROR; + + sys_info = dma_alloc_coherent(&ha->pdev->dev, sizeof(*sys_info), + &sys_info_dma, GFP_KERNEL); + if (sys_info == NULL) { + DEBUG2(printk("scsi%ld: %s: Unable to allocate dma buffer.\n", + ha->host_no, __func__)); + + goto exit_validate_mac_no_free; + } + memset(sys_info, 0, sizeof(*sys_info)); + + /* Get flash sys info */ + if (qla4xxx_get_flash(ha, sys_info_dma, FLASH_OFFSET_SYS_INFO, + sizeof(*sys_info)) != QLA_SUCCESS) { + DEBUG2(printk("scsi%ld: %s: get_flash FLASH_OFFSET_SYS_INFO " + "failed\n", ha->host_no, __func__)); + + goto exit_validate_mac; + } + + /* Save M.A.C. address & serial_number */ + memcpy(ha->my_mac, &sys_info->physAddr[0].address[0], + min(sizeof(ha->my_mac), + sizeof(sys_info->physAddr[0].address))); + memcpy(ha->serial_number, &sys_info->acSerialNumber, + min(sizeof(ha->serial_number), + sizeof(sys_info->acSerialNumber))); + + status = QLA_SUCCESS; + + exit_validate_mac: + dma_free_coherent(&ha->pdev->dev, sizeof(*sys_info), sys_info, + sys_info_dma); + + exit_validate_mac_no_free: + return status; +} + +/** + * qla4xxx_init_local_data - initialize adapter specific local data + * @ha: pointer to host adapter structure. + * + **/ +static int qla4xxx_init_local_data(struct scsi_qla_host *ha) +{ + int i; + + /* Initialize passthru PDU list */ + for (i = 0; i < (MAX_PDU_ENTRIES - 1); i++) + ha->pdu_queue[i].Next = &ha->pdu_queue[i + 1]; + ha->free_pdu_top = &ha->pdu_queue[0]; + ha->free_pdu_bottom = &ha->pdu_queue[MAX_PDU_ENTRIES - 1]; + ha->free_pdu_bottom->Next = NULL; + ha->pdu_active = 0; + + /* Initilize aen queue */ + ha->aen_q_count = MAX_AEN_ENTRIES; + + return qla4xxx_get_firmware_status(ha); +} + +static int qla4xxx_fw_ready(struct scsi_qla_host *ha) +{ + uint32_t timeout_count; + int ready = 0; + + DEBUG2(dev_info(&ha->pdev->dev, "Waiting for Firmware Ready..\n")); + for (timeout_count = ADAPTER_INIT_TOV; timeout_count > 0; + timeout_count--) { + if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags)) + qla4xxx_get_dhcp_ip_address(ha); + + /* Get firmware state. */ + if (qla4xxx_get_firmware_state(ha) != QLA_SUCCESS) { + DEBUG2(printk("scsi%ld: %s: unable to get firmware " + "state\n", ha->host_no, __func__)); + break; + + } + + if (ha->firmware_state & FW_STATE_ERROR) { + DEBUG2(printk("scsi%ld: %s: an unrecoverable error has" + " occurred\n", ha->host_no, __func__)); + break; + + } + if (ha->firmware_state & FW_STATE_CONFIG_WAIT) { + /* + * The firmware has not yet been issued an Initialize + * Firmware command, so issue it now. + */ + if (qla4xxx_initialize_fw_cb(ha) == QLA_ERROR) + break; + + /* Go back and test for ready state - no wait. */ + continue; + } + + if (ha->firmware_state == FW_STATE_READY) { + DEBUG2(dev_info(&ha->pdev->dev, "Firmware Ready..\n")); + /* The firmware is ready to process SCSI commands. */ + DEBUG2(dev_info(&ha->pdev->dev, + "scsi%ld: %s: MEDIA TYPE - %s\n", + ha->host_no, + __func__, (ha->addl_fw_state & + FW_ADDSTATE_OPTICAL_MEDIA) + != 0 ? "OPTICAL" : "COPPER")); + DEBUG2(dev_info(&ha->pdev->dev, + "scsi%ld: %s: DHCP STATE Enabled " + "%s\n", + ha->host_no, __func__, + (ha->addl_fw_state & + FW_ADDSTATE_DHCP_ENABLED) != 0 ? + "YES" : "NO")); + DEBUG2(dev_info(&ha->pdev->dev, + "scsi%ld: %s: LINK %s\n", + ha->host_no, __func__, + (ha->addl_fw_state & + FW_ADDSTATE_LINK_UP) != 0 ? + "UP" : "DOWN")); + DEBUG2(dev_info(&ha->pdev->dev, + "scsi%ld: %s: iSNS Service " + "Started %s\n", + ha->host_no, __func__, + (ha->addl_fw_state & + FW_ADDSTATE_ISNS_SVC_ENABLED) != 0 ? + "YES" : "NO")); + + ready = 1; + break; + } + DEBUG2(printk("scsi%ld: %s: waiting on fw, state=%x:%x - " + "seconds expired= %d\n", ha->host_no, __func__, + ha->firmware_state, ha->addl_fw_state, + timeout_count)); + msleep(1000); + } /* end of for */ + + if (timeout_count <= 0) + DEBUG2(printk("scsi%ld: %s: FW Initialization timed out!\n", + ha->host_no, __func__)); + + if (ha->firmware_state & FW_STATE_DHCP_IN_PROGRESS) { + DEBUG2(printk("scsi%ld: %s: FW is reporting its waiting to" + " grab an IP address from DHCP server\n", + ha->host_no, __func__)); + ready = 1; + } + + return ready; +} + +/** + * qla4xxx_init_firmware - initializes the firmware. + * @ha: pointer to host adapter structure. + * + **/ +static int qla4xxx_init_firmware(struct scsi_qla_host *ha) +{ + int status = QLA_ERROR; + + dev_info(&ha->pdev->dev, "Initializing firmware..\n"); + if (qla4xxx_initialize_fw_cb(ha) == QLA_ERROR) { + DEBUG2(printk("scsi%ld: %s: Failed to initialize firmware " + "control block\n", ha->host_no, __func__)); + return status; + } + if (!qla4xxx_fw_ready(ha)) + return status; + + set_bit(AF_ONLINE, &ha->flags); + return qla4xxx_get_firmware_status(ha); +} + +static struct ddb_entry* qla4xxx_get_ddb_entry(struct scsi_qla_host *ha, + uint32_t fw_ddb_index) +{ + struct dev_db_entry *fw_ddb_entry = NULL; + dma_addr_t fw_ddb_entry_dma; + struct ddb_entry *ddb_entry = NULL; + int found = 0; + uint32_t device_state; + + /* Make sure the dma buffer is valid */ + fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, + sizeof(*fw_ddb_entry), + &fw_ddb_entry_dma, GFP_KERNEL); + if (fw_ddb_entry == NULL) { + DEBUG2(printk("scsi%ld: %s: Unable to allocate dma buffer.\n", + ha->host_no, __func__)); + return NULL; + } + + if (qla4xxx_get_fwddb_entry(ha, fw_ddb_index, fw_ddb_entry, + fw_ddb_entry_dma, NULL, NULL, + &device_state, NULL, NULL, NULL) == + QLA_ERROR) { + DEBUG2(printk("scsi%ld: %s: failed get_ddb_entry for " + "fw_ddb_index %d\n", ha->host_no, __func__, + fw_ddb_index)); + return NULL; + } + + /* Allocate DDB if not already allocated. */ + DEBUG2(printk("scsi%ld: %s: Looking for ddb[%d]\n", ha->host_no, + __func__, fw_ddb_index)); + list_for_each_entry(ddb_entry, &ha->ddb_list, list) { + if (memcmp(ddb_entry->iscsi_name, fw_ddb_entry->iscsiName, + ISCSI_NAME_SIZE) == 0) { + found++; + break; + } + } + + if (!found) { + DEBUG2(printk("scsi%ld: %s: ddb[%d] not found - allocating " + "new ddb\n", ha->host_no, __func__, + fw_ddb_index)); + ddb_entry = qla4xxx_alloc_ddb(ha, fw_ddb_index); + } + + /* if not found allocate new ddb */ + dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), fw_ddb_entry, + fw_ddb_entry_dma); + + return ddb_entry; +} + +/** + * qla4xxx_update_ddb_entry - update driver's internal ddb + * @ha: pointer to host adapter structure. + * @ddb_entry: pointer to device database structure to be filled + * @fw_ddb_index: index of the ddb entry in fw ddb table + * + * This routine updates the driver's internal device database entry + * with information retrieved from the firmware's device database + * entry for the specified device. The ddb_entry->fw_ddb_index field + * must be initialized prior to calling this routine + * + **/ +int qla4xxx_update_ddb_entry(struct scsi_qla_host *ha, + struct ddb_entry *ddb_entry, + uint32_t fw_ddb_index) +{ + struct dev_db_entry *fw_ddb_entry = NULL; + dma_addr_t fw_ddb_entry_dma; + int status = QLA_ERROR; + + if (ddb_entry == NULL) { + DEBUG2(printk("scsi%ld: %s: ddb_entry is NULL\n", ha->host_no, + __func__)); + goto exit_update_ddb; + } + + /* Make sure the dma buffer is valid */ + fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, + sizeof(*fw_ddb_entry), + &fw_ddb_entry_dma, GFP_KERNEL); + if (fw_ddb_entry == NULL) { + DEBUG2(printk("scsi%ld: %s: Unable to allocate dma buffer.\n", + ha->host_no, __func__)); + + goto exit_update_ddb; + } + + if (qla4xxx_get_fwddb_entry(ha, fw_ddb_index, fw_ddb_entry, + fw_ddb_entry_dma, NULL, NULL, + &ddb_entry->fw_ddb_device_state, NULL, + &ddb_entry->tcp_source_port_num, + &ddb_entry->connection_id) == + QLA_ERROR) { + DEBUG2(printk("scsi%ld: %s: failed get_ddb_entry for " + "fw_ddb_index %d\n", ha->host_no, __func__, + fw_ddb_index)); + + goto exit_update_ddb; + } + + status = QLA_SUCCESS; + ddb_entry->target_session_id = le16_to_cpu(fw_ddb_entry->TSID); + ddb_entry->task_mgmt_timeout = + le16_to_cpu(fw_ddb_entry->taskMngmntTimeout); + ddb_entry->CmdSn = 0; + ddb_entry->exe_throttle = le16_to_cpu(fw_ddb_entry->exeThrottle); + ddb_entry->default_relogin_timeout = + le16_to_cpu(fw_ddb_entry->taskMngmntTimeout); + ddb_entry->default_time2wait = le16_to_cpu(fw_ddb_entry->minTime2Wait); + + /* Update index in case it changed */ + ddb_entry->fw_ddb_index = fw_ddb_index; + ha->fw_ddb_index_map[fw_ddb_index] = ddb_entry; + + ddb_entry->port = le16_to_cpu(fw_ddb_entry->portNumber); + ddb_entry->tpgt = le32_to_cpu(fw_ddb_entry->TargetPortalGroup); + memcpy(&ddb_entry->iscsi_name[0], &fw_ddb_entry->iscsiName[0], + min(sizeof(ddb_entry->iscsi_name), + sizeof(fw_ddb_entry->iscsiName))); + memcpy(&ddb_entry->ip_addr[0], &fw_ddb_entry->ipAddr[0], + min(sizeof(ddb_entry->ip_addr), sizeof(fw_ddb_entry->ipAddr))); + + DEBUG2(printk("scsi%ld: %s: ddb[%d] - State= %x status= %d.\n", + ha->host_no, __func__, fw_ddb_index, + ddb_entry->fw_ddb_device_state, status)); + + exit_update_ddb: + if (fw_ddb_entry) + dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), + fw_ddb_entry, fw_ddb_entry_dma); + + return status; +} + +/** + * qla4xxx_alloc_ddb - allocate device database entry + * @ha: Pointer to host adapter structure. + * @fw_ddb_index: Firmware's device database index + * + * This routine allocates a ddb_entry, ititializes some values, and + * inserts it into the ddb list. + **/ +struct ddb_entry * qla4xxx_alloc_ddb(struct scsi_qla_host *ha, + uint32_t fw_ddb_index) +{ + struct ddb_entry *ddb_entry; + + DEBUG2(printk("scsi%ld: %s: fw_ddb_index [%d]\n", ha->host_no, + __func__, fw_ddb_index)); + + ddb_entry = qla4xxx_alloc_sess(ha); + if (ddb_entry == NULL) { + DEBUG2(printk("scsi%ld: %s: Unable to allocate memory " + "to add fw_ddb_index [%d]\n", + ha->host_no, __func__, fw_ddb_index)); + return ddb_entry; + } + + ddb_entry->fw_ddb_index = fw_ddb_index; + atomic_set(&ddb_entry->port_down_timer, ha->port_down_retry_count); + atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY); + atomic_set(&ddb_entry->relogin_timer, 0); + atomic_set(&ddb_entry->relogin_retry_count, 0); + atomic_set(&ddb_entry->state, DDB_STATE_ONLINE); + list_add_tail(&ddb_entry->list, &ha->ddb_list); + ha->fw_ddb_index_map[fw_ddb_index] = ddb_entry; + ha->tot_ddbs++; + + return ddb_entry; +} + +/** + * qla4xxx_configure_ddbs - builds driver ddb list + * @ha: Pointer to host adapter structure. + * + * This routine searches for all valid firmware ddb entries and builds + * an internal ddb list. Ddbs that are considered valid are those with + * a device state of SESSION_ACTIVE. + **/ +static int qla4xxx_build_ddb_list(struct scsi_qla_host *ha) +{ + int status = QLA_SUCCESS; + uint32_t fw_ddb_index = 0; + uint32_t next_fw_ddb_index = 0; + uint32_t ddb_state; + uint32_t conn_err, err_code; + struct ddb_entry *ddb_entry; + + dev_info(&ha->pdev->dev, "Initializing DDBs ...\n"); + for (fw_ddb_index = 0; fw_ddb_index < MAX_DDB_ENTRIES; + fw_ddb_index = next_fw_ddb_index) { + /* First, let's see if a device exists here */ + if (qla4xxx_get_fwddb_entry(ha, fw_ddb_index, NULL, 0, NULL, + &next_fw_ddb_index, &ddb_state, + &conn_err, NULL, NULL) == + QLA_ERROR) { + DEBUG2(printk("scsi%ld: %s: get_ddb_entry, " + "fw_ddb_index %d failed", ha->host_no, + __func__, fw_ddb_index)); + return QLA_ERROR; + } + + DEBUG2(printk("scsi%ld: %s: Getting DDB[%d] ddbstate=0x%x, " + "next_fw_ddb_index=%d.\n", ha->host_no, __func__, + fw_ddb_index, ddb_state, next_fw_ddb_index)); + + /* Issue relogin, if necessary. */ + if (ddb_state == DDB_DS_SESSION_FAILED || + ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) { + /* Try and login to device */ + DEBUG2(printk("scsi%ld: %s: Login to DDB[%d]\n", + ha->host_no, __func__, fw_ddb_index)); + err_code = ((conn_err & 0x00ff0000) >> 16); + if (err_code == 0x1c || err_code == 0x06) { + DEBUG2(printk("scsi%ld: %s send target " + "completed " + "or access denied failure\n", + ha->host_no, __func__)); + } else + qla4xxx_set_ddb_entry(ha, fw_ddb_index, 0); + } + + if (ddb_state != DDB_DS_SESSION_ACTIVE) + goto next_one; + /* + * if fw_ddb with session active state found, + * add to ddb_list + */ + DEBUG2(printk("scsi%ld: %s: DDB[%d] added to list\n", + ha->host_no, __func__, fw_ddb_index)); + + /* Add DDB to internal our ddb list. */ + ddb_entry = qla4xxx_get_ddb_entry(ha, fw_ddb_index); + if (ddb_entry == NULL) { + DEBUG2(printk("scsi%ld: %s: Unable to allocate memory " + "for device at fw_ddb_index %d\n", + ha->host_no, __func__, fw_ddb_index)); + return QLA_ERROR; + } + /* Fill in the device structure */ + if (qla4xxx_update_ddb_entry(ha, ddb_entry, fw_ddb_index) == + QLA_ERROR) { + ha->fw_ddb_index_map[fw_ddb_index] = + (struct ddb_entry *)INVALID_ENTRY; + + + DEBUG2(printk("scsi%ld: %s: update_ddb_entry failed " + "for fw_ddb_index %d.\n", + ha->host_no, __func__, fw_ddb_index)); + return QLA_ERROR; + } + +next_one: + /* We know we've reached the last device when + * next_fw_ddb_index is 0 */ + if (next_fw_ddb_index == 0) + break; + } + + dev_info(&ha->pdev->dev, "DDB list done..\n"); + + return status; +} + +struct qla4_relog_scan { + int halt_wait; + uint32_t conn_err; + uint32_t err_code; + uint32_t fw_ddb_index; + uint32_t next_fw_ddb_index; + uint32_t fw_ddb_device_state; +}; + +static int qla4_test_rdy(struct scsi_qla_host *ha, struct qla4_relog_scan *rs) +{ + struct ddb_entry *ddb_entry; + + /* + * Don't want to do a relogin if connection + * error is 0x1c. + */ + rs->err_code = ((rs->conn_err & 0x00ff0000) >> 16); + if (rs->err_code == 0x1c || rs->err_code == 0x06) { + DEBUG2(printk( + "scsi%ld: %s send target" + " completed or " + "access denied failure\n", + ha->host_no, __func__)); + } else { + /* We either have a device that is in + * the process of relogging in or a + * device that is waiting to be + * relogged in */ + rs->halt_wait = 0; + + ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, + rs->fw_ddb_index); + if (ddb_entry == NULL) + return QLA_ERROR; + + if (ddb_entry->dev_scan_wait_to_start_relogin != 0 + && time_after_eq(jiffies, + ddb_entry-> + dev_scan_wait_to_start_relogin)) + { + ddb_entry->dev_scan_wait_to_start_relogin = 0; + qla4xxx_set_ddb_entry(ha, rs->fw_ddb_index, 0); + } + } + return QLA_SUCCESS; +} + +static int qla4_scan_for_relogin(struct scsi_qla_host *ha, + struct qla4_relog_scan *rs) +{ + int error; + + /* scan for relogins + * ----------------- */ + for (rs->fw_ddb_index = 0; rs->fw_ddb_index < MAX_DDB_ENTRIES; + rs->fw_ddb_index = rs->next_fw_ddb_index) { + if (qla4xxx_get_fwddb_entry(ha, rs->fw_ddb_index, NULL, 0, + NULL, &rs->next_fw_ddb_index, + &rs->fw_ddb_device_state, + &rs->conn_err, NULL, NULL) + == QLA_ERROR) + return QLA_ERROR; + + if (rs->fw_ddb_device_state == DDB_DS_LOGIN_IN_PROCESS) + rs->halt_wait = 0; + + if (rs->fw_ddb_device_state == DDB_DS_SESSION_FAILED || + rs->fw_ddb_device_state == DDB_DS_NO_CONNECTION_ACTIVE) { + error = qla4_test_rdy(ha, rs); + if (error) + return error; + } + + /* We know we've reached the last device when + * next_fw_ddb_index is 0 */ + if (rs->next_fw_ddb_index == 0) + break; + } + return QLA_SUCCESS; +} + +/** + * qla4xxx_devices_ready - wait for target devices to be logged in + * @ha: pointer to adapter structure + * + * This routine waits up to ql4xdiscoverywait seconds + * F/W database during driver load time. + **/ +static int qla4xxx_devices_ready(struct scsi_qla_host *ha) +{ + int error; + unsigned long discovery_wtime; + struct qla4_relog_scan rs; + + discovery_wtime = jiffies + (ql4xdiscoverywait * HZ); + + DEBUG(printk("Waiting (%d) for devices ...\n", ql4xdiscoverywait)); + do { + /* poll for AEN. */ + qla4xxx_get_firmware_state(ha); + if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags)) { + /* Set time-between-relogin timer */ + qla4xxx_process_aen(ha, RELOGIN_DDB_CHANGED_AENS); + } + + /* if no relogins active or needed, halt discvery wait */ + rs.halt_wait = 1; + + error = qla4_scan_for_relogin(ha, &rs); + + if (rs.halt_wait) { + DEBUG2(printk("scsi%ld: %s: Delay halted. Devices " + "Ready.\n", ha->host_no, __func__)); + return QLA_SUCCESS; + } + + msleep(2000); + } while (!time_after_eq(jiffies, discovery_wtime)); + + DEBUG3(qla4xxx_get_conn_event_log(ha)); + + return QLA_SUCCESS; +} + +static void qla4xxx_flush_AENS(struct scsi_qla_host *ha) +{ + unsigned long wtime; + + /* Flush the 0x8014 AEN from the firmware as a result of + * Auto connect. We are basically doing get_firmware_ddb() + * to determine whether we need to log back in or not. + * Trying to do a set ddb before we have processed 0x8014 + * will result in another set_ddb() for the same ddb. In other + * words there will be stale entries in the aen_q. + */ + wtime = jiffies + (2 * HZ); + do { + if (qla4xxx_get_firmware_state(ha) == QLA_SUCCESS) + if (ha->firmware_state & (BIT_2 | BIT_0)) + return; + + if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags)) + qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); + + msleep(1000); + } while (!time_after_eq(jiffies, wtime)); + +} + +static int qla4xxx_initialize_ddb_list(struct scsi_qla_host *ha) +{ + uint16_t fw_ddb_index; + int status = QLA_SUCCESS; + + /* free the ddb list if is not empty */ + if (!list_empty(&ha->ddb_list)) + qla4xxx_free_ddb_list(ha); + + for (fw_ddb_index = 0; fw_ddb_index < MAX_DDB_ENTRIES; fw_ddb_index++) + ha->fw_ddb_index_map[fw_ddb_index] = + (struct ddb_entry *)INVALID_ENTRY; + + ha->tot_ddbs = 0; + + qla4xxx_flush_AENS(ha); + + /* + * First perform device discovery for active + * fw ddb indexes and build + * ddb list. + */ + if ((status = qla4xxx_build_ddb_list(ha)) == QLA_ERROR) + return status; + + /* Wait for an AEN */ + qla4xxx_devices_ready(ha); + + /* + * Targets can come online after the inital discovery, so processing + * the aens here will catch them. + */ + if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags)) + qla4xxx_process_aen(ha, PROCESS_ALL_AENS); + + return status; +} + +/** + * qla4xxx_update_ddb_list - update the driver ddb list + * @ha: pointer to host adapter structure. + * + * This routine obtains device information from the F/W database after + * firmware or adapter resets. The device table is preserved. + **/ +int qla4xxx_reinitialize_ddb_list(struct scsi_qla_host *ha) +{ + int status = QLA_SUCCESS; + struct ddb_entry *ddb_entry, *detemp; + + /* Update the device information for all devices. */ + list_for_each_entry_safe(ddb_entry, detemp, &ha->ddb_list, list) { + qla4xxx_update_ddb_entry(ha, ddb_entry, + ddb_entry->fw_ddb_index); + if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) { + atomic_set(&ddb_entry->state, DDB_STATE_ONLINE); + DEBUG2(printk ("scsi%ld: %s: ddb index [%d] marked " + "ONLINE\n", ha->host_no, __func__, + ddb_entry->fw_ddb_index)); + } else if (atomic_read(&ddb_entry->state) == DDB_STATE_ONLINE) + qla4xxx_mark_device_missing(ha, ddb_entry); + } + return status; +} + +/** + * qla4xxx_relogin_device - re-establish session + * @ha: Pointer to host adapter structure. + * @ddb_entry: Pointer to device database entry + * + * This routine does a session relogin with the specified device. + * The ddb entry must be assigned prior to making this call. + **/ +int qla4xxx_relogin_device(struct scsi_qla_host *ha, + struct ddb_entry * ddb_entry) +{ + uint16_t relogin_timer; + + relogin_timer = max(ddb_entry->default_relogin_timeout, + (uint16_t)RELOGIN_TOV); + atomic_set(&ddb_entry->relogin_timer, relogin_timer); + + DEBUG2(printk("scsi%ld: Relogin index [%d]. TOV=%d\n", ha->host_no, + ddb_entry->fw_ddb_index, relogin_timer)); + + qla4xxx_set_ddb_entry(ha, ddb_entry->fw_ddb_index, 0); + + return QLA_SUCCESS; +} + +/** + * qla4010_get_topcat_presence - check if it is QLA4040 TopCat Chip + * @ha: Pointer to host adapter structure. + * + **/ +static int qla4010_get_topcat_presence(struct scsi_qla_host *ha) +{ + unsigned long flags; + uint16_t topcat; + + if (ql4xxx_lock_nvram(ha) != QLA_SUCCESS) + return QLA_ERROR; + spin_lock_irqsave(&ha->hardware_lock, flags); + topcat = rd_nvram_word(ha, offsetof(struct eeprom_data, + isp4010.topcat)); + spin_unlock_irqrestore(&ha->hardware_lock, flags); + + if ((topcat & TOPCAT_MASK) == TOPCAT_PRESENT) + set_bit(AF_TOPCAT_CHIP_PRESENT, &ha->flags); + else + clear_bit(AF_TOPCAT_CHIP_PRESENT, &ha->flags); + ql4xxx_unlock_nvram(ha); + return QLA_SUCCESS; +} + + +static int qla4xxx_config_nvram(struct scsi_qla_host *ha) +{ + unsigned long flags; + union external_hw_config_reg extHwConfig; + + DEBUG2(printk("scsi%ld: %s: Get EEProm parameters \n", ha->host_no, + __func__)); + if (ql4xxx_lock_flash(ha) != QLA_SUCCESS) + return (QLA_ERROR); + if (ql4xxx_lock_nvram(ha) != QLA_SUCCESS) { + ql4xxx_unlock_flash(ha); + return (QLA_ERROR); + } + + /* Get EEPRom Parameters from NVRAM and validate */ + dev_info(&ha->pdev->dev, "Configuring NVRAM ...\n"); + if (qla4xxx_is_nvram_configuration_valid(ha) == QLA_SUCCESS) { + spin_lock_irqsave(&ha->hardware_lock, flags); + extHwConfig.Asuint32_t = + rd_nvram_word(ha, eeprom_ext_hw_conf_offset(ha)); + spin_unlock_irqrestore(&ha->hardware_lock, flags); + } else { + /* + * QLogic adapters should always have a valid NVRAM. + * If not valid, do not load. + */ + dev_warn(&ha->pdev->dev, + "scsi%ld: %s: EEProm checksum invalid. " + "Please update your EEPROM\n", ha->host_no, + __func__); + + /* set defaults */ + if (is_qla4010(ha)) + extHwConfig.Asuint32_t = 0x1912; + else if (is_qla4022(ha)) + extHwConfig.Asuint32_t = 0x0023; + } + DEBUG(printk("scsi%ld: %s: Setting extHwConfig to 0xFFFF%04x\n", + ha->host_no, __func__, extHwConfig.Asuint32_t)); + + spin_lock_irqsave(&ha->hardware_lock, flags); + writel((0xFFFF << 16) | extHwConfig.Asuint32_t, isp_ext_hw_conf(ha)); + readl(isp_ext_hw_conf(ha)); + spin_unlock_irqrestore(&ha->hardware_lock, flags); + + ql4xxx_unlock_nvram(ha); + ql4xxx_unlock_flash(ha); + + return (QLA_SUCCESS); +} + +static void qla4x00_pci_config(struct scsi_qla_host *ha) +{ + uint16_t w, mwi; + + dev_info(&ha->pdev->dev, "Configuring PCI space...\n"); + + pci_set_master(ha->pdev); + mwi = 0; + if (pci_set_mwi(ha->pdev)) + mwi = PCI_COMMAND_INVALIDATE; + /* + * 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); + w &= ~PCI_COMMAND_INTX_DISABLE; + pci_write_config_word(ha->pdev, PCI_COMMAND, w); +} + +static int qla4xxx_start_firmware_from_flash(struct scsi_qla_host *ha) +{ + int status = QLA_ERROR; + uint32_t max_wait_time; + unsigned long flags; + uint32_t mbox_status; + + dev_info(&ha->pdev->dev, "Starting firmware ...\n"); + + /* + * Start firmware from flash ROM + * + * WORKAROUND: Stuff a non-constant value that the firmware can + * use as a seed for a random number generator in MB7 prior to + * setting BOOT_ENABLE. Fixes problem where the TCP + * connections use the same TCP ports after each reboot, + * causing some connections to not get re-established. + */ + DEBUG(printk("scsi%d: %s: Start firmware from flash ROM\n", + ha->host_no, __func__)); + + spin_lock_irqsave(&ha->hardware_lock, flags); + writel(jiffies, &ha->reg->mailbox[7]); + if (is_qla4022(ha)) + writel(set_rmask(NVR_WRITE_ENABLE), + &ha->reg->u1.isp4022.nvram); + + writel(set_rmask(CSR_BOOT_ENABLE), &ha->reg->ctrl_status); + readl(&ha->reg->ctrl_status); + spin_unlock_irqrestore(&ha->hardware_lock, flags); + + /* Wait for firmware to come UP. */ + max_wait_time = FIRMWARE_UP_TOV * 4; + do { + uint32_t ctrl_status; + + spin_lock_irqsave(&ha->hardware_lock, flags); + ctrl_status = readw(&ha->reg->ctrl_status); + mbox_status = readw(&ha->reg->mailbox[0]); + spin_unlock_irqrestore(&ha->hardware_lock, flags); + + if (ctrl_status & set_rmask(CSR_SCSI_PROCESSOR_INTR)) + break; + if (mbox_status == MBOX_STS_COMMAND_COMPLETE) + break; + + DEBUG2(printk("scsi%ld: %s: Waiting for boot firmware to " + "complete... ctrl_sts=0x%x, remaining=%d\n", + ha->host_no, __func__, ctrl_status, + max_wait_time)); + + msleep(250); + } while ((max_wait_time--)); + + if (mbox_status == MBOX_STS_COMMAND_COMPLETE) { + DEBUG(printk("scsi%ld: %s: Firmware has started\n", + ha->host_no, __func__)); + + spin_lock_irqsave(&ha->hardware_lock, flags); + writel(set_rmask(CSR_SCSI_PROCESSOR_INTR), + &ha->reg->ctrl_status); + readl(&ha->reg->ctrl_status); + spin_unlock_irqrestore(&ha->hardware_lock, flags); + + status = QLA_SUCCESS; + } else { + printk(KERN_INFO "scsi%ld: %s: Boot firmware failed " + "- mbox status 0x%x\n", ha->host_no, __func__, + mbox_status); + status = QLA_ERROR; + } + return status; +} + +static int ql4xxx_lock_drvr_wait(struct scsi_qla_host *a) +{ +#define QL4_LOCK_DRVR_WAIT 300 +#define QL4_LOCK_DRVR_SLEEP 100 + + int drvr_wait = QL4_LOCK_DRVR_WAIT; + while (drvr_wait) { + if (ql4xxx_lock_drvr(a) == 0) { + msleep(QL4_LOCK_DRVR_SLEEP); + if (drvr_wait) { + DEBUG2(printk("scsi%ld: %s: Waiting for " + "Global Init Semaphore...n", + a->host_no, + __func__)); + } + drvr_wait -= QL4_LOCK_DRVR_SLEEP; + } else { + DEBUG2(printk("scsi%ld: %s: Global Init Semaphore " + "acquired.n", a->host_no, __func__)); + return QLA_SUCCESS; + } + } + return QLA_ERROR; +} + +/** + * qla4xxx_start_firmware - starts qla4xxx firmware + * @ha: Pointer to host adapter structure. + * + * This routine performs the neccessary steps to start the firmware for + * the QLA4010 adapter. + **/ +static int qla4xxx_start_firmware(struct scsi_qla_host *ha) +{ + unsigned long flags = 0; + uint32_t mbox_status; + int status = QLA_ERROR; + int soft_reset = 1; + int config_chip = 0; + + if (is_qla4010(ha)){ + if (qla4010_get_topcat_presence(ha) != QLA_SUCCESS) + return QLA_ERROR; + } + + if (is_qla4022(ha)) + ql4xxx_set_mac_number(ha); + + if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS) + return QLA_ERROR; + + spin_lock_irqsave(&ha->hardware_lock, flags); + + DEBUG2(printk("scsi%ld: %s: port_ctrl = 0x%08X\n", ha->host_no, + __func__, readw(isp_port_ctrl(ha)))); + DEBUG(printk("scsi%ld: %s: port_status = 0x%08X\n", ha->host_no, + __func__, readw(isp_port_status(ha)))); + + /* Is Hardware already initialized? */ + if ((readw(isp_port_ctrl(ha)) & 0x8000) != 0) { + DEBUG(printk("scsi%ld: %s: Hardware has already been " + "initialized\n", ha->host_no, __func__)); + + /* Receive firmware boot acknowledgement */ + mbox_status = readw(&ha->reg->mailbox[0]); + + DEBUG2(printk("scsi%ld: %s: H/W Config complete - mbox[0]= " + "0x%x\n", ha->host_no, __func__, mbox_status)); + + /* Is firmware already booted? */ + if (mbox_status == 0) { + /* F/W not running, must be config by net driver */ + config_chip = 1; + soft_reset = 0; + } else { + writel(set_rmask(CSR_SCSI_PROCESSOR_INTR), + &ha->reg->ctrl_status); + readl(&ha->reg->ctrl_status); + spin_unlock_irqrestore(&ha->hardware_lock, flags); + if (qla4xxx_get_firmware_state(ha) == QLA_SUCCESS) { + DEBUG2(printk("scsi%ld: %s: Get firmware " + "state -- state = 0x%x\n", + ha->host_no, + __func__, ha->firmware_state)); + /* F/W is running */ + if (ha->firmware_state & + FW_STATE_CONFIG_WAIT) { + DEBUG2(printk("scsi%ld: %s: Firmware " + "in known state -- " + "config and " + "boot, state = 0x%x\n", + ha->host_no, __func__, + ha->firmware_state)); + config_chip = 1; + soft_reset = 0; + } + } else { + DEBUG2(printk("scsi%ld: %s: Firmware in " + "unknown state -- resetting," + " state = " + "0x%x\n", ha->host_no, __func__, + ha->firmware_state)); + } + spin_lock_irqsave(&ha->hardware_lock, flags); + } + } else { + DEBUG(printk("scsi%ld: %s: H/W initialization hasn't been " + "started - resetting\n", ha->host_no, __func__)); + } + spin_unlock_irqrestore(&ha->hardware_lock, flags); + + DEBUG(printk("scsi%ld: %s: Flags soft_rest=%d, config= %d\n ", + ha->host_no, __func__, soft_reset, config_chip)); + if (soft_reset) { + DEBUG(printk("scsi%ld: %s: Issue Soft Reset\n", ha->host_no, + __func__)); + status = qla4xxx_soft_reset(ha); + if (status == QLA_ERROR) { + DEBUG(printk("scsi%d: %s: Soft Reset failed!\n", + ha->host_no, __func__)); + ql4xxx_unlock_drvr(ha); + return QLA_ERROR; + } + config_chip = 1; + + /* Reset clears the semaphore, so aquire again */ + if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS) + return QLA_ERROR; + } + + if (config_chip) { + if ((status = qla4xxx_config_nvram(ha)) == QLA_SUCCESS) + status = qla4xxx_start_firmware_from_flash(ha); + } + + ql4xxx_unlock_drvr(ha); + if (status == QLA_SUCCESS) { + qla4xxx_get_fw_version(ha); + if (test_and_clear_bit(AF_GET_CRASH_RECORD, &ha->flags)) + qla4xxx_get_crash_record(ha); + } else { + DEBUG(printk("scsi%ld: %s: Firmware has NOT started\n", + ha->host_no, __func__)); + } + return status; +} + + +/** + * qla4xxx_initialize_adapter - initiailizes hba + * @ha: Pointer to host adapter structure. + * @renew_ddb_list: Indicates what to do with the adapter's ddb list + * after adapter recovery has completed. + * 0=preserve ddb list, 1=destroy and rebuild ddb list + * + * This routine parforms all of the steps necessary to initialize the adapter. + * + **/ +int qla4xxx_initialize_adapter(struct scsi_qla_host *ha, + uint8_t renew_ddb_list) +{ + int status = QLA_ERROR; + int8_t ip_address[IP_ADDR_LEN] = {0} ; + + ha->eeprom_cmd_data = 0; + + qla4x00_pci_config(ha); + + qla4xxx_disable_intrs(ha); + + /* Initialize the Host adapter request/response queues and firmware */ + if (qla4xxx_start_firmware(ha) == QLA_ERROR) + return status; + + if (qla4xxx_validate_mac_address(ha) == QLA_ERROR) + return status; + + if (qla4xxx_init_local_data(ha) == QLA_ERROR) + return status; + + status = qla4xxx_init_firmware(ha); + if (status == QLA_ERROR) + return status; + + /* + * FW is waiting to get an IP address from DHCP server: Skip building + * the ddb_list and wait for DHCP lease acquired aen to come in + * followed by 0x8014 aen" to trigger the tgt discovery process. + */ + if (ha->firmware_state & FW_STATE_DHCP_IN_PROGRESS) + return status; + + /* Skip device discovery if ip and subnet is zero */ + if (memcmp(ha->ip_address, ip_address, IP_ADDR_LEN) == 0 || + memcmp(ha->subnet_mask, ip_address, IP_ADDR_LEN) == 0) + return status; + + if (renew_ddb_list == PRESERVE_DDB_LIST) { + /* + * We want to preserve lun states (i.e. suspended, etc.) + * for recovery initiated by the driver. So just update + * the device states for the existing ddb_list. + */ + qla4xxx_reinitialize_ddb_list(ha); + } else if (renew_ddb_list == REBUILD_DDB_LIST) { + /* + * We want to build the ddb_list from scratch during + * driver initialization and recovery initiated by the + * INT_HBA_RESET IOCTL. + */ + status = qla4xxx_initialize_ddb_list(ha); + if (status == QLA_ERROR) { + DEBUG2(printk("%s(%ld) Error occurred during build" + "ddb list\n", __func__, ha->host_no)); + goto exit_init_hba; + } + + } + if (!ha->tot_ddbs) { + DEBUG2(printk("scsi%ld: Failed to initialize devices or none " + "present in Firmware device database\n", + ha->host_no)); + } + + exit_init_hba: + return status; + +} + +/** + * qla4xxx_add_device_dynamically - ddb addition due to an AEN + * @ha: Pointer to host adapter structure. + * @fw_ddb_index: Firmware's device database index + * + * This routine processes adds a device as a result of an 8014h AEN. + **/ +static void qla4xxx_add_device_dynamically(struct scsi_qla_host *ha, + uint32_t fw_ddb_index) +{ + struct ddb_entry * ddb_entry; + + /* First allocate a device structure */ + ddb_entry = qla4xxx_get_ddb_entry(ha, fw_ddb_index); + if (ddb_entry == NULL) { + DEBUG2(printk(KERN_WARNING + "scsi%ld: Unable to allocate memory to add " + "fw_ddb_index %d\n", ha->host_no, fw_ddb_index)); + return; + } + + if (qla4xxx_update_ddb_entry(ha, ddb_entry, fw_ddb_index) == + QLA_ERROR) { + ha->fw_ddb_index_map[fw_ddb_index] = + (struct ddb_entry *)INVALID_ENTRY; + DEBUG2(printk(KERN_WARNING + "scsi%ld: failed to add new device at index " + "[%d]\n Unable to retrieve fw ddb entry\n", + ha->host_no, fw_ddb_index)); + qla4xxx_free_ddb(ha, ddb_entry); + return; + } + + if (qla4xxx_add_sess(ddb_entry, 0)) { + DEBUG2(printk(KERN_WARNING + "scsi%ld: failed to add new device at index " + "[%d]\n Unable to add connection and session\n", + ha->host_no, fw_ddb_index)); + qla4xxx_free_ddb(ha, ddb_entry); + } +} + +/** + * qla4xxx_process_ddb_changed - process ddb state change + * @ha - Pointer to host adapter structure. + * @fw_ddb_index - Firmware's device database index + * @state - Device state + * + * This routine processes a Decive Database Changed AEN Event. + **/ +int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha, + uint32_t fw_ddb_index, uint32_t state) +{ + struct ddb_entry * ddb_entry; + uint32_t old_fw_ddb_device_state; + + /* check for out of range index */ + if (fw_ddb_index >= MAX_DDB_ENTRIES) + return QLA_ERROR; + + /* Get the corresponging ddb entry */ + ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, fw_ddb_index); + /* Device does not currently exist in our database. */ + if (ddb_entry == NULL) { + if (state == DDB_DS_SESSION_ACTIVE) + qla4xxx_add_device_dynamically(ha, fw_ddb_index); + return QLA_SUCCESS; + } + + /* Device already exists in our database. */ + old_fw_ddb_device_state = ddb_entry->fw_ddb_device_state; + DEBUG2(printk("scsi%ld: %s DDB - old state= 0x%x, new state=0x%x for " + "index [%d]\n", ha->host_no, __func__, + ddb_entry->fw_ddb_device_state, state, fw_ddb_index)); + if (old_fw_ddb_device_state == state && + state == DDB_DS_SESSION_ACTIVE) { + /* Do nothing, state not changed. */ + return QLA_SUCCESS; + } + + ddb_entry->fw_ddb_device_state = state; + /* Device is back online. */ + if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) { + atomic_set(&ddb_entry->port_down_timer, + ha->port_down_retry_count); + atomic_set(&ddb_entry->state, DDB_STATE_ONLINE); + atomic_set(&ddb_entry->relogin_retry_count, 0); + atomic_set(&ddb_entry->relogin_timer, 0); + clear_bit(DF_RELOGIN, &ddb_entry->flags); + clear_bit(DF_NO_RELOGIN, &ddb_entry->flags); + iscsi_if_create_session_done(ddb_entry->conn); + /* + * Change the lun state to READY in case the lun TIMEOUT before + * the device came back. + */ + } else { + /* Device went away, try to relogin. */ + /* Mark device missing */ + if (atomic_read(&ddb_entry->state) == DDB_STATE_ONLINE) + qla4xxx_mark_device_missing(ha, ddb_entry); + /* + * Relogin if device state changed to a not active state. + * However, do not relogin if this aen is a result of an IOCTL + * logout (DF_NO_RELOGIN) or if this is a discovered device. + */ + if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_FAILED && + !test_bit(DF_RELOGIN, &ddb_entry->flags) && + !test_bit(DF_NO_RELOGIN, &ddb_entry->flags) && + !test_bit(DF_ISNS_DISCOVERED, &ddb_entry->flags)) { + /* + * This triggers a relogin. After the relogin_timer + * expires, the relogin gets scheduled. We must wait a + * minimum amount of time since receiving an 0x8014 AEN + * with failed device_state or a logout response before + * we can issue another relogin. + */ + /* Firmware padds this timeout: (time2wait +1). + * Driver retry to login should be longer than F/W. + * Otherwise F/W will fail + * set_ddb() mbx cmd with 0x4005 since it still + * counting down its time2wait. + */ + atomic_set(&ddb_entry->relogin_timer, 0); + atomic_set(&ddb_entry->retry_relogin_timer, + ddb_entry->default_time2wait + 4); + } + } + + return QLA_SUCCESS; +} + diff -Naurp linux-2.6.17.noarch/drivers/scsi/qla4xxx/ql4_inline.h linux-2.6.17.noarch.qla4xxx/drivers/scsi/qla4xxx/ql4_inline.h --- linux-2.6.17.noarch/drivers/scsi/qla4xxx/ql4_inline.h 1969-12-31 19:00:00.000000000 -0500 +++ linux-2.6.17.noarch.qla4xxx/drivers/scsi/qla4xxx/ql4_inline.h 2006-08-17 12:57:22.000000000 -0400 @@ -0,0 +1,84 @@ +/* + * QLogic iSCSI HBA Driver + * Copyright (c) 2003-2006 QLogic Corporation + * + * See LICENSE.qla4xxx for copyright and licensing details. + */ + +/* + * + * qla4xxx_lookup_ddb_by_fw_index + * This routine locates a device handle given the firmware device + * database index. If device doesn't exist, returns NULL. + * + * Input: + * ha - Pointer to host adapter structure. + * fw_ddb_index - Firmware's device database index + * + * Returns: + * Pointer to the corresponding internal device database structure + */ +static inline struct ddb_entry * +qla4xxx_lookup_ddb_by_fw_index(struct scsi_qla_host *ha, uint32_t fw_ddb_index) +{ + struct ddb_entry *ddb_entry = NULL; + + if ((fw_ddb_index < MAX_DDB_ENTRIES) && + (ha->fw_ddb_index_map[fw_ddb_index] != + (struct ddb_entry *) INVALID_ENTRY)) { + ddb_entry = ha->fw_ddb_index_map[fw_ddb_index]; + } + + DEBUG3(printk("scsi%d: %s: index [%d], ddb_entry = %p\n", + ha->host_no, __func__, fw_ddb_index, ddb_entry)); + + return ddb_entry; +} + +static inline void +__qla4xxx_enable_intrs(struct scsi_qla_host *ha) +{ + if (is_qla4022(ha)) { + writel(set_rmask(IMR_SCSI_INTR_ENABLE), + &ha->reg->u1.isp4022.intr_mask); + readl(&ha->reg->u1.isp4022.intr_mask); + } else { + writel(set_rmask(CSR_SCSI_INTR_ENABLE), &ha->reg->ctrl_status); + readl(&ha->reg->ctrl_status); + } + set_bit(AF_INTERRUPTS_ON, &ha->flags); +} + +static inline void +__qla4xxx_disable_intrs(struct scsi_qla_host *ha) +{ + if (is_qla4022(ha)) { + writel(clr_rmask(IMR_SCSI_INTR_ENABLE), + &ha->reg->u1.isp4022.intr_mask); + readl(&ha->reg->u1.isp4022.intr_mask); + } else { + writel(clr_rmask(CSR_SCSI_INTR_ENABLE), &ha->reg->ctrl_status); + readl(&ha->reg->ctrl_status); + } + clear_bit(AF_INTERRUPTS_ON, &ha->flags); +} + +static inline void +qla4xxx_enable_intrs(struct scsi_qla_host *ha) +{ + unsigned long flags; + + spin_lock_irqsave(&ha->hardware_lock, flags); + __qla4xxx_enable_intrs(ha); + spin_unlock_irqrestore(&ha->hardware_lock, flags); +} + +static inline void +qla4xxx_disable_intrs(struct scsi_qla_host *ha) +{ + unsigned long flags; + + spin_lock_irqsave(&ha->hardware_lock, flags); + __qla4xxx_disable_intrs(ha); + spin_unlock_irqrestore(&ha->hardware_lock, flags); +} diff -Naurp linux-2.6.17.noarch/drivers/scsi/qla4xxx/ql4_iocb.c linux-2.6.17.noarch.qla4xxx/drivers/scsi/qla4xxx/ql4_iocb.c --- linux-2.6.17.noarch/drivers/scsi/qla4xxx/ql4_iocb.c 1969-12-31 19:00:00.000000000 -0500 +++ linux-2.6.17.noarch.qla4xxx/drivers/scsi/qla4xxx/ql4_iocb.c 2006-08-17 12:57:22.000000000 -0400 @@ -0,0 +1,516 @@ +/* + * QLogic iSCSI HBA Driver + * Copyright (c) 2003-2006 QLogic Corporation + * + * See LICENSE.qla4xxx for copyright and licensing details. + */ + +#include "ql4_def.h" + +#include <scsi/scsi_tcq.h> + +/** + * qla4xxx_get_req_pkt - returns a valid entry in request queue. + * @ha: Pointer to host adapter structure. + * @queue_entry: Pointer to pointer to queue entry structure + * + * This routine performs the following tasks: + * - returns the current request_in pointer (if queue not full) + * - advances the request_in pointer + * - checks for queue full + **/ +int qla4xxx_get_req_pkt(struct scsi_qla_host *ha, + struct queue_entry **queue_entry) +{ + uint16_t request_in; + uint8_t status = QLA_SUCCESS; + + *queue_entry = ha->request_ptr; + + /* get the latest request_in and request_out index */ + request_in = ha->request_in; + ha->request_out = (uint16_t) le32_to_cpu(ha->shadow_regs->req_q_out); + + /* Advance request queue pointer and check for queue full */ + if (request_in == (REQUEST_QUEUE_DEPTH - 1)) { + request_in = 0; + ha->request_ptr = ha->request_ring; + } else { + request_in++; + ha->request_ptr++; + } + + /* request queue is full, try again later */ + if ((ha->iocb_cnt + 1) >= ha->iocb_hiwat) { + /* restore request pointer */ + ha->request_ptr = *queue_entry; + status = QLA_ERROR; + } else { + ha->request_in = request_in; + memset(*queue_entry, 0, sizeof(**queue_entry)); + } + + return status; +} + +/** + * qla4xxx_send_marker_iocb - issues marker iocb to HBA + * @ha: Pointer to host adapter structure. + * @ddb_entry: Pointer to device database entry + * @lun: SCSI LUN + * @marker_type: marker identifier + * + * This routine issues a marker IOCB. + **/ +int qla4xxx_send_marker_iocb(struct scsi_qla_host *ha, + struct ddb_entry *ddb_entry, int lun) +{ + struct marker_entry *marker_entry; + unsigned long flags = 0; + uint8_t status = QLA_SUCCESS; + + /* Acquire hardware specific lock */ + spin_lock_irqsave(&ha->hardware_lock, flags); + + /* Get pointer to the queue entry for the marker */ + if (qla4xxx_get_req_pkt(ha, (struct queue_entry **) &marker_entry) != + QLA_SUCCESS) { + status = QLA_ERROR; + goto exit_send_marker; + } + + /* Put the marker in the request queue */ + marker_entry->hdr.entryType = ET_MARKER; + marker_entry->hdr.entryCount = 1; + marker_entry->target = cpu_to_le16(ddb_entry->fw_ddb_index); + marker_entry->modifier = cpu_to_le16(MM_LUN_RESET); + int_to_scsilun(lun, &marker_entry->lun); + wmb(); + + /* Tell ISP it's got a new I/O request */ + writel(ha->request_in, &ha->reg->req_q_in); + readl(&ha->reg->req_q_in); + +exit_send_marker: + spin_unlock_irqrestore(&ha->hardware_lock, flags); + return status; +} + +struct pdu_entry * qla4xxx_get_pdu(struct scsi_qla_host * ha, uint32_t length) +{ + struct pdu_entry *pdu; + struct pdu_entry *free_pdu_top; + struct pdu_entry *free_pdu_bottom; + uint16_t pdu_active; + + if (ha->free_pdu_top == NULL) + return NULL; + + /* Save current state */ + free_pdu_top = ha->free_pdu_top; + free_pdu_bottom = ha->free_pdu_bottom; + pdu_active = ha->pdu_active + 1; + + /* get next available pdu */ + pdu = free_pdu_top; + free_pdu_top = pdu->Next; + if (free_pdu_top == NULL) + free_pdu_bottom = NULL; + + /* round up to nearest page */ + length = (length + (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1); + + /* Allocate pdu buffer PDU */ + pdu->Buff = dma_alloc_coherent(&ha->pdev->dev, length, &pdu->DmaBuff, + GFP_KERNEL); + if (pdu->Buff == NULL) + return NULL; + + memset(pdu->Buff, 0, length); + + /* Fill in remainder of PDU */ + pdu->BuffLen = length; + pdu->SendBuffLen = 0; + pdu->RecvBuffLen = 0; + pdu->Next = NULL; + ha->free_pdu_top = free_pdu_top; + ha->free_pdu_bottom = free_pdu_bottom; + ha->pdu_active = pdu_active; + return pdu; +} + +void qla4xxx_free_pdu(struct scsi_qla_host * ha, struct pdu_entry * pdu) +{ + if (ha->free_pdu_bottom == NULL) { + ha->free_pdu_top = pdu; + ha->free_pdu_bottom = pdu; + } else { + ha->free_pdu_bottom->Next = pdu; + ha->free_pdu_bottom = pdu; + } + dma_free_coherent(&ha->pdev->dev, pdu->BuffLen, pdu->Buff, + pdu->DmaBuff); + ha->pdu_active--; + + /* Clear PDU */ + pdu->Buff = NULL; + pdu->BuffLen = 0; + pdu->SendBuffLen = 0; + pdu->RecvBuffLen = 0; + pdu->Next = NULL; + pdu->DmaBuff = 0; +} + +/** + * qla4xxx_send_passthru0_iocb - issues pass-thru iocb to HBA + * @ha: Pointer to host adapter structure. + * @fw_ddb_index: firmware ddb index + * @connection_id: firmware connection id + * @pdu_dma_data: dma base address of pdu + * @send_len: send length + * @recv_len: receive length + * @control_flags: iocb control flags + * @handle: iocb handle + * + * This routine issues a passthru0 IOCB. + * hardware_lock acquired upon entry, interrupt context + **/ +int qla4_spt0_iocb(struct scsi_qla_host * ha, + uint16_t fw_ddb_index, + uint16_t connection_id, + dma_addr_t pdu_dma_data, uint32_t send_len, + uint32_t recv_len, uint16_t control_flags, + uint32_t handle) +{ + struct passthru0 *passthru_entry; + uint8_t status = QLA_SUCCESS; + + /* Get pointer to the queue entry for the marker */ + if (qla4xxx_get_req_pkt(ha, (struct queue_entry **) &passthru_entry) != + QLA_SUCCESS) { + status = QLA_ERROR; + goto exit_send_pt0; + } + + /* Fill in the request queue */ + passthru_entry->hdr.entryType = ET_PASSTHRU0; + passthru_entry->hdr.entryCount = 1; + passthru_entry->handle = cpu_to_le32(handle); + passthru_entry->target = cpu_to_le16(fw_ddb_index); + passthru_entry->connectionID = cpu_to_le16(connection_id); + passthru_entry->timeout = __constant_cpu_to_le16(PT_DEFAULT_TIMEOUT); + if (send_len) { + control_flags |= PT_FLAG_SEND_BUFFER; + passthru_entry->outDataSeg64.base.addrHigh = + cpu_to_le32(MSDW(pdu_dma_data)); + passthru_entry->outDataSeg64.base.addrLow = + cpu_to_le32(LSDW(pdu_dma_data)); + passthru_entry->outDataSeg64.count = cpu_to_le32(send_len); + } + if (recv_len) { + passthru_entry->inDataSeg64.base.addrHigh = + cpu_to_le32(MSDW(pdu_dma_data)); + passthru_entry->inDataSeg64.base.addrLow = + cpu_to_le32(LSDW(pdu_dma_data)); + passthru_entry->inDataSeg64.count = cpu_to_le32(recv_len); + } + passthru_entry->controlFlags = cpu_to_le16(control_flags); + wmb(); + + /* Tell ISP it's got a new I/O request */ + writel(ha->request_in, &ha->reg->req_q_in); + readl(&ha->reg->req_q_in); + +exit_send_pt0: + return status; +} + +struct continuation_t1_entry* qla4xxx_alloc_cont_entry( + struct scsi_qla_host *ha) +{ + struct continuation_t1_entry *cont_entry; + + cont_entry = (struct continuation_t1_entry *)ha->request_ptr; + + /* Advance request queue pointer */ + if (ha->request_in == (REQUEST_QUEUE_DEPTH - 1)) { + ha->request_in = 0; + ha->request_ptr = ha->request_ring; + } else { + ha->request_in++; + ha->request_ptr++; + } + + /* Load packet defaults */ + cont_entry->hdr.entryType = ET_CONTINUE; + cont_entry->hdr.entryCount = 1; + cont_entry->hdr.systemDefined = (uint8_t) cpu_to_le16(ha->request_in); + + return cont_entry; +} + +uint16_t qla4xxx_calc_request_entries(uint16_t dsds) +{ + uint16_t iocbs; + + iocbs = 1; + if (dsds > COMMAND_SEG) { + iocbs += (dsds - COMMAND_SEG) / CONTINUE_SEG; + if ((dsds - COMMAND_SEG) % CONTINUE_SEG) + iocbs++; + } + return iocbs; +} + +void qla4xxx_build_scsi_iocbs(struct srb *srb, + struct command_t3_entry *cmd_entry, + uint16_t tot_dsds) +{ + struct scsi_qla_host *ha; + uint16_t avail_dsds; + struct data_seg_a64 *cur_dsd; + struct scsi_cmnd *cmd; + + cmd = srb->cmd; + ha = srb->ha; + + if (cmd->request_bufflen == 0 || cmd->sc_data_direction == DMA_NONE) { + /* No data being transferred */ + cmd_entry->ttlByteCnt = __constant_cpu_to_le32(0); + return; + } + + avail_dsds = COMMAND_SEG; + cur_dsd = (struct data_seg_a64 *) & (cmd_entry->dataseg[0]); + + /* Load data segments */ + if (cmd->use_sg) { + struct scatterlist *cur_seg; + struct scatterlist *end_seg; + + cur_seg = (struct scatterlist *)cmd->request_buffer; + end_seg = cur_seg + tot_dsds; + while (cur_seg < end_seg) { + dma_addr_t sle_dma; + + /* Allocate additional continuation packets? */ + if (avail_dsds == 0) { + struct continuation_t1_entry *cont_entry; + + cont_entry = qla4xxx_alloc_cont_entry(ha); + cur_dsd = + (struct data_seg_a64 *) + &cont_entry->dataseg[0]; + avail_dsds = CONTINUE_SEG; + } + + sle_dma = sg_dma_address(cur_seg); + cur_dsd->base.addrLow = cpu_to_le32(LSDW(sle_dma)); + cur_dsd->base.addrHigh = cpu_to_le32(MSDW(sle_dma)); + cur_dsd->count = cpu_to_le32(sg_dma_len(cur_seg)); + avail_dsds--; + + cur_dsd++; + cur_seg++; + } + } else { + cur_dsd->base.addrLow = cpu_to_le32(LSDW(srb->dma_handle)); + cur_dsd->base.addrHigh = cpu_to_le32(MSDW(srb->dma_handle)); + cur_dsd->count = cpu_to_le32(cmd->request_bufflen); + } +} + +/** + * qla4xxx_send_command_to_isp - issues command to HBA + * @ha: pointer to host adapter structure. + * @srb: pointer to SCSI Request Block to be sent to ISP + * + * This routine is called by qla4xxx_queuecommand to build an ISP + * command and pass it to the ISP for execution. + **/ +int qla4xxx_send_command_to_isp(struct scsi_qla_host *ha, struct srb * srb) +{ + struct scsi_cmnd *cmd = srb->cmd; + struct ddb_entry *ddb_entry; + struct command_t3_entry *cmd_entry; + struct scatterlist *sg = NULL; + + uint16_t tot_dsds; + uint16_t req_cnt; + + unsigned long flags; + uint16_t cnt; + uint16_t i; + uint32_t index; + char tag[2]; + + /* Get real lun and adapter */ + ddb_entry = srb->ddb; + + /* Send marker(s) if needed. */ + if (ha->marker_needed == 1) { + if (qla4xxx_send_marker_iocb(ha, ddb_entry, + cmd->device->lun) != QLA_SUCCESS) + return QLA_ERROR; + + ha->marker_needed = 0; + } + tot_dsds = 0; + + /* Acquire hardware specific lock */ + spin_lock_irqsave(&ha->hardware_lock, flags); + + /* Check for room in active srb array */ + index = ha->current_active_index; + for (i = 0; i < MAX_SRBS; i++) { + index++; + if (index == MAX_SRBS) + index = 1; + if (ha->active_srb_array[index] == 0) { + ha->current_active_index = index; + break; + } + } + if (i >= MAX_SRBS) { + printk(KERN_INFO "scsi%ld: %s: NO more SRB entries used " + "iocbs=%d, \n reqs remaining=%d\n", ha->host_no, + __func__, ha->iocb_cnt, ha->req_q_count); + goto queuing_error; + } + + /* Calculate the number of request entries needed. */ + if (cmd->use_sg) { + sg = (struct scatterlist *)cmd->request_buffer; + tot_dsds = pci_map_sg(ha->pdev, sg, cmd->use_sg, + cmd->sc_data_direction); + if (tot_dsds == 0) + goto queuing_error; + } else if (cmd->request_bufflen) { + dma_addr_t req_dma; + + req_dma = pci_map_single(ha->pdev, cmd->request_buffer, + cmd->request_bufflen, + cmd->sc_data_direction); + if (dma_mapping_error(req_dma)) + goto queuing_error; + + srb->dma_handle = req_dma; + tot_dsds = 1; + } + req_cnt = qla4xxx_calc_request_entries(tot_dsds); + + if (ha->req_q_count < (req_cnt + 2)) { + cnt = (uint16_t) le32_to_cpu(ha->shadow_regs->req_q_out); + if (ha->request_in < cnt) + ha->req_q_count = cnt - ha->request_in; + else + ha->req_q_count = REQUEST_QUEUE_DEPTH - + (ha->request_in - cnt); + } + + if (ha->req_q_count < (req_cnt + 2)) + goto queuing_error; + + /* total iocbs active */ + if ((ha->iocb_cnt + req_cnt) >= REQUEST_QUEUE_DEPTH) + goto queuing_error; + + /* Build command packet */ + cmd_entry = (struct command_t3_entry *) ha->request_ptr; + memset(cmd_entry, 0, sizeof(struct command_t3_entry)); + cmd_entry->hdr.entryType = ET_COMMAND; + cmd_entry->handle = cpu_to_le32(index); + cmd_entry->target = cpu_to_le16(ddb_entry->fw_ddb_index); + cmd_entry->connection_id = cpu_to_le16(ddb_entry->connection_id); + + int_to_scsilun(cmd->device->lun, &cmd_entry->lun); + cmd_entry->cmdSeqNum = cpu_to_le32(ddb_entry->CmdSn); + cmd_entry->ttlByteCnt = cpu_to_le32(cmd->request_bufflen); + memcpy(cmd_entry->cdb, cmd->cmnd, cmd->cmd_len); + cmd_entry->dataSegCnt = cpu_to_le16(tot_dsds); + cmd_entry->hdr.entryCount = req_cnt; + + /* Set data transfer direction control flags + * NOTE: Look at data_direction bits iff there is data to be + * transferred, as the data direction bit is sometimed filled + * in when there is no data to be transferred */ + cmd_entry->control_flags = CF_NO_DATA; + if (cmd->request_bufflen) { + if (cmd->sc_data_direction == DMA_TO_DEVICE) + cmd_entry->control_flags = CF_WRITE; + else if (cmd->sc_data_direction == DMA_FROM_DEVICE) + cmd_entry->control_flags = CF_READ; + } + + /* Set tagged queueing control flags */ + cmd_entry->control_flags |= CF_SIMPLE_TAG; + if (scsi_populate_tag_msg(cmd, tag)) + switch (tag[0]) { + case MSG_HEAD_TAG: + cmd_entry->control_flags |= CF_HEAD_TAG; + break; + case MSG_ORDERED_TAG: + cmd_entry->control_flags |= CF_ORDERED_TAG; + break; + } + + + /* Advance request queue pointer */ + ha->request_in++; + if (ha->request_in == REQUEST_QUEUE_DEPTH) { + ha->request_in = 0; + ha->request_ptr = ha->request_ring; + } else + ha->request_ptr++; + + + qla4xxx_build_scsi_iocbs(srb, cmd_entry, tot_dsds); + wmb(); + + /* + * Check to see if adapter is online before placing request on + * request queue. If a reset occurs and a request is in the queue, + * the firmware will still attempt to process the request, retrieving + * garbage for pointers. + */ + if (!test_bit(AF_ONLINE, &ha->flags)) { + DEBUG2(printk("scsi%ld: %s: Adapter OFFLINE! " + "Do not issue command.\n", + ha->host_no, __func__)); + goto queuing_error; + } + + /* put command in active array */ + ha->active_srb_array[index] = srb; + srb->cmd->host_scribble = (unsigned char *)(unsigned long)index; + + /* update counters */ + srb->state = SRB_ACTIVE_STATE; + srb->flags |= SRB_DMA_VALID; + + /* Track IOCB used */ + ha->iocb_cnt += req_cnt; + srb->iocb_cnt = req_cnt; + ha->req_q_count -= req_cnt; + + /* Debug print statements */ + writel(ha->request_in, &ha->reg->req_q_in); + readl(&ha->reg->req_q_in); + spin_unlock_irqrestore(&ha->hardware_lock, flags); + + return QLA_SUCCESS; + +queuing_error: + if (cmd->use_sg && tot_dsds) { + sg = (struct scatterlist *) cmd->request_buffer; + pci_unmap_sg(ha->pdev, sg, cmd->use_sg, + cmd->sc_data_direction); + } else if (tot_dsds) + pci_unmap_single(ha->pdev, srb->dma_handle, + cmd->request_bufflen, cmd->sc_data_direction); + + spin_unlock_irqrestore(&ha->hardware_lock, flags); + + return QLA_ERROR; +} + diff -Naurp linux-2.6.17.noarch/drivers/scsi/qla4xxx/ql4_isr.c linux-2.6.17.noarch.qla4xxx/drivers/scsi/qla4xxx/ql4_isr.c --- linux-2.6.17.noarch/drivers/scsi/qla4xxx/ql4_isr.c 1969-12-31 19:00:00.000000000 -0500 +++ linux-2.6.17.noarch.qla4xxx/drivers/scsi/qla4xxx/ql4_isr.c 2006-08-17 12:57:22.000000000 -0400 @@ -0,0 +1,796 @@ +/* + * QLogic iSCSI HBA Driver + * Copyright (c) 2003-2006 QLogic Corporation + * + * See LICENSE.qla4xxx for copyright and licensing details. + */ + +#include "ql4_def.h" + +/** + * qla2x00_process_completed_request() - Process a Fast Post response. + * @ha: SCSI driver HA context + * @index: SRB index + **/ +static void qla4xxx_process_completed_request(struct scsi_qla_host *ha, + uint32_t index) +{ + struct srb *srb; + + srb = qla4xxx_del_from_active_array(ha, index); + if (srb) { + /* Save ISP completion status */ + srb->cmd->result = DID_OK << 16; + qla4xxx_srb_compl(ha, srb); + } else { + DEBUG2(printk("scsi%ld: Invalid ISP SCSI completion handle = " + "%d\n", ha->host_no, index)); + set_bit(DPC_RESET_HA, &ha->dpc_flags); + } +} + +/** + * qla4xxx_status_entry - processes status IOCBs + * @ha: Pointer to host adapter structure. + * @sts_entry: Pointer to status entry structure. + **/ +static void qla4xxx_status_entry(struct scsi_qla_host *ha, + struct status_entry *sts_entry) +{ + uint8_t scsi_status; + struct scsi_cmnd *cmd; + struct srb *srb; + struct ddb_entry *ddb_entry; + uint32_t residual; + uint16_t sensebytecnt; + + if (sts_entry->completionStatus == SCS_COMPLETE && + sts_entry->scsiStatus == 0) { + qla4xxx_process_completed_request(ha, + le32_to_cpu(sts_entry-> + handle)); + return; + } + + srb = qla4xxx_del_from_active_array(ha, le32_to_cpu(sts_entry->handle)); + if (!srb) { + /* FIXMEdg: Don't we need to reset ISP in this case??? */ + DEBUG2(printk(KERN_WARNING "scsi%ld: %s: Status Entry invalid " + "handle 0x%x, sp=%p. This cmd may have already " + "been completed.\n", ha->host_no, __func__, + le32_to_cpu(sts_entry->handle), srb)); + } + + cmd = srb->cmd; + if (cmd == NULL) { + DEBUG2(printk("scsi%ld: %s: Command already returned back to " + "OS pkt->handle=%d srb=%p srb->state:%d\n", + ha->host_no, __func__, sts_entry->handle, + srb, srb->state)); + dev_warn(&ha->pdev->dev, "Command is NULL:" + " already returned to OS (srb=%p)\n", srb); + return; + } + + ddb_entry = srb->ddb; + if (ddb_entry == NULL) { + cmd->result = DID_NO_CONNECT << 16; + goto status_entry_exit; + } + + residual = le32_to_cpu(sts_entry->residualByteCnt); + + /* Translate ISP error to a Linux SCSI error. */ + scsi_status = sts_entry->scsiStatus; + switch (sts_entry->completionStatus) { + case SCS_COMPLETE: + if (scsi_status == 0) { + cmd->result = DID_OK << 16; + break; + } + + if (sts_entry->iscsiFlags & + (ISCSI_FLAG_RESIDUAL_OVER|ISCSI_FLAG_RESIDUAL_UNDER)) + cmd->resid = residual; + + cmd->result = DID_OK << 16 | scsi_status; + + if (scsi_status != SCSI_CHECK_CONDITION) + break; + + /* Copy Sense Data into sense buffer. */ + memset(cmd->sense_buffer, 0, sizeof(cmd->sense_buffer)); + + sensebytecnt = le16_to_cpu(sts_entry->senseDataByteCnt); + if (sensebytecnt == 0) + break; + + memcpy(cmd->sense_buffer, sts_entry->senseData, + min(sensebytecnt, + (uint16_t) sizeof(cmd->sense_buffer))); + + DEBUG2(printk("scsi%ld:%d:%d:%d: %s: sense key = %x, " + "ASC/ASCQ = %02x/%02x\n", ha->host_no, + cmd->device->channel, cmd->device->id, + cmd->device->lun, __func__, + sts_entry->senseData[2] & 0x0f, + sts_entry->senseData[12], + sts_entry->senseData[13])); + + srb->flags |= SRB_GOT_SENSE; + break; + + case SCS_INCOMPLETE: + /* Always set the status to DID_ERROR, since + * all conditions result in that status anyway */ + cmd->result = DID_ERROR << 16; + break; + + case SCS_RESET_OCCURRED: + DEBUG2(printk("scsi%ld:%d:%d:%d: %s: Device RESET occurred\n", + ha->host_no, cmd->device->channel, + cmd->device->id, cmd->device->lun, __func__)); + + cmd->result = DID_RESET << 16; + break; + + case SCS_ABORTED: + DEBUG2(printk("scsi%ld:%d:%d:%d: %s: Abort occurred\n", + ha->host_no, cmd->device->channel, + cmd->device->id, cmd->device->lun, __func__)); + + cmd->result = DID_RESET << 16; + break; + + case SCS_TIMEOUT: + DEBUG2(printk(KERN_INFO "scsi%ld:%d:%d:%d: Timeout\n", + ha->host_no, cmd->device->channel, + cmd->device->id, cmd->device->lun)); + + cmd->result = DID_BUS_BUSY << 16; + + /* + * Mark device missing so that we won't continue to send + * I/O to this device. We should get a ddb state change + * AEN soon. + */ + if (atomic_read(&ddb_entry->state) == DDB_STATE_ONLINE) + qla4xxx_mark_device_missing(ha, ddb_entry); + break; + + case SCS_DATA_UNDERRUN: + case SCS_DATA_OVERRUN: + if (sts_entry->iscsiFlags & ISCSI_FLAG_RESIDUAL_OVER) { + DEBUG2(printk("scsi%ld:%d:%d:%d: %s: " "Data overrun, " + "residual = 0x%x\n", ha->host_no, + cmd->device->channel, cmd->device->id, + cmd->device->lun, __func__, residual)); + + cmd->result = DID_ERROR << 16; + break; + } + + if ((sts_entry->iscsiFlags & ISCSI_FLAG_RESIDUAL_UNDER) == 0) { + /* + * Firmware detected a SCSI transport underrun + * condition + */ + cmd->resid = residual; + DEBUG2(printk("scsi%ld:%d:%d:%d: %s: UNDERRUN status " + "detected, xferlen = 0x%x, residual = " + "0x%x\n", + ha->host_no, cmd->device->channel, + cmd->device->id, + cmd->device->lun, __func__, + cmd->request_bufflen, + residual)); + } + + /* + * If there is scsi_status, it takes precedense over + * underflow condition. + */ + if (scsi_status != 0) { + cmd->result = DID_OK << 16 | scsi_status; + + if (scsi_status != SCSI_CHECK_CONDITION) + break; + + /* Copy Sense Data into sense buffer. */ + memset(cmd->sense_buffer, 0, + sizeof(cmd->sense_buffer)); + + sensebytecnt = + le16_to_cpu(sts_entry->senseDataByteCnt); + if (sensebytecnt == 0) + break; + + memcpy(cmd->sense_buffer, sts_entry->senseData, + min(sensebytecnt, + (uint16_t) sizeof(cmd->sense_buffer))); + + DEBUG2(printk("scsi%ld:%d:%d:%d: %s: sense key = %x, " + "ASC/ASCQ = %02x/%02x\n", ha->host_no, + cmd->device->channel, cmd->device->id, + cmd->device->lun, __func__, + sts_entry->senseData[2] & 0x0f, + sts_entry->senseData[12], + sts_entry->senseData[13])); + } else { + /* + * If RISC reports underrun and target does not + * report it then we must have a lost frame, so + * tell upper layer to retry it by reporting a + * bus busy. + */ + if ((sts_entry->iscsiFlags & + ISCSI_FLAG_RESIDUAL_UNDER) == 0) { + cmd->result = DID_BUS_BUSY << 16; + } else if ((cmd->request_bufflen - residual) < + cmd->underflow) { + /* + * Handle mid-layer underflow??? + * + * For kernels less than 2.4, the driver must + * return an error if an underflow is detected. + * For kernels equal-to and above 2.4, the + * mid-layer will appearantly handle the + * underflow by detecting the residual count -- + * unfortunately, we do not see where this is + * actually being done. In the interim, we + * will return DID_ERROR. + */ + DEBUG2(printk("scsi%ld:%d:%d:%d: %s: " + "Mid-layer Data underrun, " + "xferlen = 0x%x, " + "residual = 0x%x\n", ha->host_no, + cmd->device->channel, + cmd->device->id, + cmd->device->lun, __func__, + cmd->request_bufflen, residual)); + + cmd->result = DID_ERROR << 16; + } else { + cmd->result = DID_OK << 16; + } + } + break; + + case SCS_DEVICE_LOGGED_OUT: + case SCS_DEVICE_UNAVAILABLE: + /* + * Mark device missing so that we won't continue to + * send I/O to this device. We should get a ddb + * state change AEN soon. + */ + if (atomic_read(&ddb_entry->state) == DDB_STATE_ONLINE) + qla4xxx_mark_device_missing(ha, ddb_entry); + + cmd->result = DID_BUS_BUSY << 16; + break; + + case SCS_QUEUE_FULL: + /* + * SCSI Mid-Layer handles device queue full + */ + cmd->result = DID_OK << 16 | sts_entry->scsiStatus; + DEBUG2(printk("scsi%ld:%d:%d: %s: QUEUE FULL detected " + "compl=%02x, scsi=%02x, state=%02x, iFlags=%02x," + " iResp=%02x\n", ha->host_no, cmd->device->id, + cmd->device->lun, __func__, + sts_entry->completionStatus, + sts_entry->scsiStatus, sts_entry->state_flags, + sts_entry->iscsiFlags, + sts_entry->iscsiResponse)); + break; + + default: + cmd->result = DID_ERROR << 16; + break; + } + +status_entry_exit: + + /* complete the request */ + srb->cc_stat = sts_entry->completionStatus; + qla4xxx_srb_compl(ha, srb); +} + +/** + * qla4xxx_process_response_queue - process response queue completions + * @ha: Pointer to host adapter structure. + * + * This routine process response queue completions in interrupt context. + * Hardware_lock locked upon entry + **/ +static void qla4xxx_process_response_queue(struct scsi_qla_host * ha) +{ + uint32_t count = 0; + struct srb *srb = NULL; + struct status_entry *sts_entry; + + /* Process all responses from response queue */ + while ((ha->response_in = + (uint16_t)le32_to_cpu(ha->shadow_regs->rsp_q_in)) != + ha->response_out) { + sts_entry = (struct status_entry *) ha->response_ptr; + count++; + + /* Advance pointers for next entry */ + if (ha->response_out == (RESPONSE_QUEUE_DEPTH - 1)) { + ha->response_out = 0; + ha->response_ptr = ha->response_ring; + } else { + ha->response_out++; + ha->response_ptr++; + } + + /* process entry */ + switch (sts_entry->hdr.entryType) { + case ET_STATUS: + /* + * Common status - Single completion posted in single + * IOSB. + */ + qla4xxx_status_entry(ha, sts_entry); + break; + + case ET_PASSTHRU_STATUS: + break; + + case ET_STATUS_CONTINUATION: + /* Just throw away the status continuation entries */ + DEBUG2(printk("scsi%ld: %s: Status Continuation entry " + "- ignoring\n", ha->host_no, __func__)); + break; + + case ET_COMMAND: + /* ISP device queue is full. Command not + * accepted by ISP. Queue command for + * later */ + + srb = qla4xxx_del_from_active_array(ha, + le32_to_cpu(sts_entry-> + handle)); + if (srb == NULL) + goto exit_prq_invalid_handle; + + DEBUG2(printk("scsi%ld: %s: FW device queue full, " + "srb %p\n", ha->host_no, __func__, srb)); + + /* ETRY normally by sending it back with + * DID_BUS_BUSY */ + srb->cmd->result = DID_BUS_BUSY << 16; + qla4xxx_srb_compl(ha, srb); + break; + + case ET_CONTINUE: + /* Just throw away the continuation entries */ + DEBUG2(printk("scsi%ld: %s: Continuation entry - " + "ignoring\n", ha->host_no, __func__)); + break; + + default: + /* + * Invalid entry in response queue, reset RISC + * firmware. + */ + DEBUG2(printk("scsi%ld: %s: Invalid entry %x in " + "response queue \n", ha->host_no, + __func__, + sts_entry->hdr.entryType)); + goto exit_prq_error; + } + } + + /* + * Done with responses, update the ISP For QLA4010, this also clears + * the interrupt. + */ + writel(ha->response_out, &ha->reg->rsp_q_out); + readl(&ha->reg->rsp_q_out); + + return; + +exit_prq_invalid_handle: + DEBUG2(printk("scsi%ld: %s: Invalid handle(srb)=%p type=%x IOCS=%x\n", + ha->host_no, __func__, srb, sts_entry->hdr.entryType, + sts_entry->completionStatus)); + +exit_prq_error: + writel(ha->response_out, &ha->reg->rsp_q_out); + readl(&ha->reg->rsp_q_out); + + set_bit(DPC_RESET_HA, &ha->dpc_flags); +} + +/** + * qla4xxx_isr_decode_mailbox - decodes mailbox status + * @ha: Pointer to host adapter structure. + * @mailbox_status: Mailbox status. + * + * This routine decodes the mailbox status during the ISR. + * Hardware_lock locked upon entry. runs in interrupt context. + **/ +static void qla4xxx_isr_decode_mailbox(struct scsi_qla_host * ha, + uint32_t mbox_status) +{ + int i; + + if ((mbox_status == MBOX_STS_BUSY) || + (mbox_status == MBOX_STS_INTERMEDIATE_COMPLETION) || + (mbox_status >> 12 == MBOX_COMPLETION_STATUS)) { + ha->mbox_status[0] = mbox_status; + + if (test_bit(AF_MBOX_COMMAND, &ha->flags)) { + /* + * Copy all mailbox registers to a temporary + * location and set mailbox command done flag + */ + for (i = 1; i < ha->mbox_status_count; i++) + ha->mbox_status[i] = + readl(&ha->reg->mailbox[i]); + + set_bit(AF_MBOX_COMMAND_DONE, &ha->flags); + wake_up(&ha->mailbox_wait_queue); + } + } else if (mbox_status >> 12 == MBOX_ASYNC_EVENT_STATUS) { + /* Immediately process the AENs that don't require much work. + * Only queue the database_changed AENs */ + switch (mbox_status) { + case MBOX_ASTS_SYSTEM_ERROR: + /* Log Mailbox registers */ + if (ql4xdontresethba) { + DEBUG2(printk("%s:Dont Reset HBA\n", + __func__)); + } else { + set_bit(AF_GET_CRASH_RECORD, &ha->flags); + set_bit(DPC_RESET_HA, &ha->dpc_flags); + } + break; + + case MBOX_ASTS_REQUEST_TRANSFER_ERROR: + case MBOX_ASTS_RESPONSE_TRANSFER_ERROR: + case MBOX_ASTS_NVRAM_INVALID: + case MBOX_ASTS_IP_ADDRESS_CHANGED: + case MBOX_ASTS_DHCP_LEASE_EXPIRED: + DEBUG2(printk("scsi%ld: AEN %04x, ERROR Status, " + "Reset HA\n", ha->host_no, mbox_status)); + set_bit(DPC_RESET_HA, &ha->dpc_flags); + break; + + case MBOX_ASTS_LINK_UP: + DEBUG2(printk("scsi%ld: AEN %04x Adapter LINK UP\n", + ha->host_no, mbox_status)); + set_bit(AF_LINK_UP, &ha->flags); + break; + + case MBOX_ASTS_LINK_DOWN: + DEBUG2(printk("scsi%ld: AEN %04x Adapter LINK DOWN\n", + ha->host_no, mbox_status)); + clear_bit(AF_LINK_UP, &ha->flags); + break; + + case MBOX_ASTS_HEARTBEAT: + ha->seconds_since_last_heartbeat = 0; + break; + + case MBOX_ASTS_DHCP_LEASE_ACQUIRED: + DEBUG2(printk("scsi%ld: AEN %04x DHCP LEASE " + "ACQUIRED\n", ha->host_no, mbox_status)); + set_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags); + break; + + case MBOX_ASTS_PROTOCOL_STATISTIC_ALARM: + case MBOX_ASTS_SCSI_COMMAND_PDU_REJECTED: /* Target + * mode + * only */ + case MBOX_ASTS_UNSOLICITED_PDU_RECEIVED: /* Connection mode */ + case MBOX_ASTS_IPSEC_SYSTEM_FATAL_ERROR: + case MBOX_ASTS_SUBNET_STATE_CHANGE: + /* No action */ + DEBUG2(printk("scsi%ld: AEN %04x\n", ha->host_no, + mbox_status)); + break; + + case MBOX_ASTS_MAC_ADDRESS_CHANGED: + case MBOX_ASTS_DNS: + /* No action */ + DEBUG2(printk(KERN_INFO "scsi%ld: AEN %04x, " + "mbox_sts[1]=%04x, mbox_sts[2]=%04x\n", + ha->host_no, mbox_status, + readl(&ha->reg->mailbox[1]), + readl(&ha->reg->mailbox[2]))); + break; + + case MBOX_ASTS_SELF_TEST_FAILED: + case MBOX_ASTS_LOGIN_FAILED: + /* No action */ + DEBUG2(printk("scsi%ld: AEN %04x, mbox_sts[1]=%04x, " + "mbox_sts[2]=%04x, mbox_sts[3]=%04x\n", + ha->host_no, mbox_status, + readl(&ha->reg->mailbox[1]), + readl(&ha->reg->mailbox[2]), + readl(&ha->reg->mailbox[3]))); + break; + + case MBOX_ASTS_DATABASE_CHANGED: + /* Queue AEN information and process it in the DPC + * routine */ + if (ha->aen_q_count > 0) { + /* advance pointer */ + if (ha->aen_in == (MAX_AEN_ENTRIES - 1)) + ha->aen_in = 0; + else + ha->aen_in++; + + /* decrement available counter */ + ha->aen_q_count--; + + for (i = 1; i < MBOX_AEN_REG_COUNT; i++) + ha->aen_q[ha->aen_in].mbox_sts[i] = + readl(&ha->reg->mailbox[i]); + + ha->aen_q[ha->aen_in].mbox_sts[0] = mbox_status; + + /* print debug message */ + DEBUG2(printk("scsi%ld: AEN[%d] %04x queued" + " mb1:0x%x mb2:0x%x mb3:0x%x mb4:0x%x\n", + ha->host_no, ha->aen_in, + mbox_status, + ha->aen_q[ha->aen_in].mbox_sts[1], + ha->aen_q[ha->aen_in].mbox_sts[2], + ha->aen_q[ha->aen_in].mbox_sts[3], + ha->aen_q[ha->aen_in]. mbox_sts[4])); + + /* The DPC routine will process the aen */ + set_bit(DPC_AEN, &ha->dpc_flags); + } else { + DEBUG2(printk("scsi%ld: %s: aen %04x, queue " + "overflowed! AEN LOST!!\n", + ha->host_no, __func__, + mbox_status)); + + DEBUG2(printk("scsi%ld: DUMP AEN QUEUE\n", + ha->host_no)); + + for (i = 0; i < MAX_AEN_ENTRIES; i++) { + DEBUG2(printk("AEN[%d] %04x %04x %04x " + "%04x\n", i, + ha->aen_q[i].mbox_sts[0], + ha->aen_q[i].mbox_sts[1], + ha->aen_q[i].mbox_sts[2], + ha->aen_q[i].mbox_sts[3])); + } + } + break; + + default: + DEBUG2(printk(KERN_WARNING + "scsi%ld: AEN %04x UNKNOWN\n", + ha->host_no, mbox_status)); + break; + } + } else { + DEBUG2(printk("scsi%ld: Unknown mailbox status %08X\n", + ha->host_no, mbox_status)); + + ha->mbox_status[0] = mbox_status; + } +} + +/** + * qla4xxx_interrupt_service_routine - isr + * @ha: pointer to host adapter structure. + * + * This is the main interrupt service routine. + * hardware_lock locked upon entry. runs in interrupt context. + **/ +void qla4xxx_interrupt_service_routine(struct scsi_qla_host * ha, + uint32_t intr_status) +{ + /* Process response queue interrupt. */ + if (intr_status & CSR_SCSI_COMPLETION_INTR) + qla4xxx_process_response_queue(ha); + + /* Process mailbox/asynch event interrupt.*/ + if (intr_status & CSR_SCSI_PROCESSOR_INTR) { + qla4xxx_isr_decode_mailbox(ha, + readl(&ha->reg->mailbox[0])); + + /* Clear Mailbox Interrupt */ + writel(set_rmask(CSR_SCSI_PROCESSOR_INTR), + &ha->reg->ctrl_status); + readl(&ha->reg->ctrl_status); + } +} + +/** + * qla4xxx_intr_handler - hardware interrupt handler. + * @irq: Unused + * @dev_id: Pointer to host adapter structure + * @regs: Unused + **/ +irqreturn_t qla4xxx_intr_handler(int irq, void *dev_id, struct pt_regs *regs) +{ + struct scsi_qla_host *ha; + uint32_t intr_status; + unsigned long flags = 0; + uint8_t reqs_count = 0; + + ha = (struct scsi_qla_host *) dev_id; + if (!ha) { + DEBUG2(printk(KERN_INFO + "qla4xxx: Interrupt with NULL host ptr\n")); + return IRQ_NONE; + } + + spin_lock_irqsave(&ha->hardware_lock, flags); + + /* + * Repeatedly service interrupts up to a maximum of + * MAX_REQS_SERVICED_PER_INTR + */ + while (1) { + /* + * Read interrupt status + */ + if (le32_to_cpu(ha->shadow_regs->rsp_q_in) != + ha->response_out) + intr_status = CSR_SCSI_COMPLETION_INTR; + else + intr_status = readl(&ha->reg->ctrl_status); + + if ((intr_status & + (CSR_SCSI_RESET_INTR|CSR_FATAL_ERROR|INTR_PENDING)) == + 0) { + if (reqs_count == 0) + ha->spurious_int_count++; + break; + } + + if (intr_status & CSR_FATAL_ERROR) { + DEBUG2(printk(KERN_INFO "scsi%ld: Fatal Error, " + "Status 0x%04x\n", ha->host_no, + readl(isp_port_error_status (ha)))); + + /* Issue Soft Reset to clear this error condition. + * This will prevent the RISC from repeatedly + * interrupting the driver; thus, allowing the DPC to + * get scheduled to continue error recovery. + * NOTE: Disabling RISC interrupts does not work in + * this case, as CSR_FATAL_ERROR overrides + * CSR_SCSI_INTR_ENABLE */ + if ((readl(&ha->reg->ctrl_status) & + CSR_SCSI_RESET_INTR) == 0) { + writel(set_rmask(CSR_SOFT_RESET), + &ha->reg->ctrl_status); + readl(&ha->reg->ctrl_status); + } + + writel(set_rmask(CSR_FATAL_ERROR), + &ha->reg->ctrl_status); + readl(&ha->reg->ctrl_status); + + __qla4xxx_disable_intrs(ha); + + set_bit(DPC_RESET_HA, &ha->dpc_flags); + + break; + } else if (intr_status & CSR_SCSI_RESET_INTR) { + clear_bit(AF_ONLINE, &ha->flags); + __qla4xxx_disable_intrs(ha); + + writel(set_rmask(CSR_SCSI_RESET_INTR), + &ha->reg->ctrl_status); + readl(&ha->reg->ctrl_status); + + set_bit(DPC_RESET_HA_INTR, &ha->dpc_flags); + + break; + } else if (intr_status & INTR_PENDING) { + qla4xxx_interrupt_service_routine(ha, intr_status); + ha->total_io_count++; + if (++reqs_count == MAX_REQS_SERVICED_PER_INTR) + break; + + intr_status = 0; + } + } + + spin_unlock_irqrestore(&ha->hardware_lock, flags); + + return IRQ_HANDLED; +} + +/** + * qla4xxx_process_aen - processes AENs generated by firmware + * @ha: pointer to host adapter structure. + * @process_aen: type of AENs to process + * + * Processes specific types of Asynchronous Events generated by firmware. + * The type of AENs to process is specified by process_aen and can be + * PROCESS_ALL_AENS 0 + * FLUSH_DDB_CHANGED_AENS 1 + * RELOGIN_DDB_CHANGED_AENS 2 + **/ +void qla4xxx_process_aen(struct scsi_qla_host * ha, uint8_t process_aen) +{ + uint32_t mbox_sts[MBOX_AEN_REG_COUNT]; + struct aen *aen; + int i; + unsigned long flags; + + spin_lock_irqsave(&ha->hardware_lock, flags); + while (ha->aen_out != ha->aen_in) { + /* Advance pointers for next entry */ + if (ha->aen_out == (MAX_AEN_ENTRIES - 1)) + ha->aen_out = 0; + else + ha->aen_out++; + + ha->aen_q_count++; + aen = &ha->aen_q[ha->aen_out]; + + /* copy aen information to local structure */ + for (i = 0; i < MBOX_AEN_REG_COUNT; i++) + mbox_sts[i] = aen->mbox_sts[i]; + + spin_unlock_irqrestore(&ha->hardware_lock, flags); + + DEBUG(printk("scsi%ld: AEN[%d] %04x, index [%d] state=%04x " + "mod=%x conerr=%08x \n", ha->host_no, ha->aen_out, + mbox_sts[0], mbox_sts[2], mbox_sts[3], + mbox_sts[1], mbox_sts[4])); + + switch (mbox_sts[0]) { + case MBOX_ASTS_DATABASE_CHANGED: + if (process_aen == FLUSH_DDB_CHANGED_AENS) { + DEBUG2(printk("scsi%ld: AEN[%d] %04x, index " + "[%d] state=%04x FLUSHED!\n", + ha->host_no, ha->aen_out, + mbox_sts[0], mbox_sts[2], + mbox_sts[3])); + break; + } else if (process_aen == RELOGIN_DDB_CHANGED_AENS) { + /* for use during init time, we only want to + * relogin non-active ddbs */ + struct ddb_entry *ddb_entry; + + ddb_entry = + /* FIXME: name length? */ + qla4xxx_lookup_ddb_by_fw_index(ha, + mbox_sts[2]); + if (!ddb_entry) + break; + + ddb_entry->dev_scan_wait_to_complete_relogin = + 0; + ddb_entry->dev_scan_wait_to_start_relogin = + jiffies + + ((ddb_entry->default_time2wait + + 4) * HZ); + + DEBUG2(printk("scsi%ld: ddb index [%d] initate" + " RELOGIN after %d seconds\n", + ha->host_no, + ddb_entry->fw_ddb_index, + ddb_entry->default_time2wait + + 4)); + break; + } + + if (mbox_sts[1] == 0) { /* Global DB change. */ + qla4xxx_reinitialize_ddb_list(ha); + } else if (mbox_sts[1] == 1) { /* Specific device. */ + qla4xxx_process_ddb_changed(ha, mbox_sts[2], + mbox_sts[3]); + } + break; + } + spin_lock_irqsave(&ha->hardware_lock, flags); + } + spin_unlock_irqrestore(&ha->hardware_lock, flags); + +} + diff -Naurp linux-2.6.17.noarch/drivers/scsi/qla4xxx/ql4_mbx.c linux-2.6.17.noarch.qla4xxx/drivers/scsi/qla4xxx/ql4_mbx.c --- linux-2.6.17.noarch/drivers/scsi/qla4xxx/ql4_mbx.c 1969-12-31 19:00:00.000000000 -0500 +++ linux-2.6.17.noarch.qla4xxx/drivers/scsi/qla4xxx/ql4_mbx.c 2006-08-17 12:57:22.000000000 -0400 @@ -0,0 +1,930 @@ +/* + * QLogic iSCSI HBA Driver + * Copyright (c) 2003-2006 QLogic Corporation + * + * See LICENSE.qla4xxx for copyright and licensing details. + */ + +#include "ql4_def.h" + + +/** + * qla4xxx_mailbox_command - issues mailbox commands + * @ha: Pointer to host adapter structure. + * @inCount: number of mailbox registers to load. + * @outCount: number of mailbox registers to return. + * @mbx_cmd: data pointer for mailbox in registers. + * @mbx_sts: data pointer for mailbox out registers. + * + * This routine sssue mailbox commands and waits for completion. + * If outCount is 0, this routine completes successfully WITHOUT waiting + * for the mailbox command to complete. + **/ +int qla4xxx_mailbox_command(struct scsi_qla_host *ha, uint8_t inCount, + uint8_t outCount, uint32_t *mbx_cmd, + uint32_t *mbx_sts) +{ + int status = QLA_ERROR; + uint8_t i; + u_long wait_count; + uint32_t intr_status; + unsigned long flags = 0; + DECLARE_WAITQUEUE(wait, current); + + mutex_lock(&ha->mbox_sem); + + /* Mailbox code active */ + set_bit(AF_MBOX_COMMAND, &ha->flags); + + /* Make sure that pointers are valid */ + if (!mbx_cmd || !mbx_sts) { + DEBUG2(printk("scsi%ld: %s: Invalid mbx_cmd or mbx_sts " + "pointer\n", ha->host_no, __func__)); + goto mbox_exit; + } + + /* To prevent overwriting mailbox registers for a command that has + * not yet been serviced, check to see if a previously issued + * mailbox command is interrupting. + * ----------------------------------------------------------------- + */ + spin_lock_irqsave(&ha->hardware_lock, flags); + intr_status = readl(&ha->reg->ctrl_status); + if (intr_status & CSR_SCSI_PROCESSOR_INTR) { + /* Service existing interrupt */ + qla4xxx_interrupt_service_routine(ha, intr_status); + clear_bit(AF_MBOX_COMMAND_DONE, &ha->flags); + } + + /* Send the mailbox command to the firmware */ + ha->mbox_status_count = outCount; + for (i = 0; i < outCount; i++) + ha->mbox_status[i] = 0; + + /* Load all mailbox registers, except mailbox 0. */ + for (i = 1; i < inCount; i++) + writel(mbx_cmd[i], &ha->reg->mailbox[i]); + + /* Wakeup firmware */ + writel(mbx_cmd[0], &ha->reg->mailbox[0]); + readl(&ha->reg->mailbox[0]); + writel(set_rmask(CSR_INTR_RISC), &ha->reg->ctrl_status); + readl(&ha->reg->ctrl_status); + spin_unlock_irqrestore(&ha->hardware_lock, flags); + + /* Wait for completion */ + set_current_state(TASK_UNINTERRUPTIBLE); + add_wait_queue(&ha->mailbox_wait_queue, &wait); + + /* + * If we don't want status, don't wait for the mailbox command to + * complete. For example, MBOX_CMD_RESET_FW doesn't return status, + * you must poll the inbound Interrupt Mask for completion. + */ + if (outCount == 0) { + status = QLA_SUCCESS; + set_current_state(TASK_RUNNING); + remove_wait_queue(&ha->mailbox_wait_queue, &wait); + goto mbox_exit; + } + /* Wait for command to complete */ + wait_count = jiffies + MBOX_TOV * HZ; + while (test_bit(AF_MBOX_COMMAND_DONE, &ha->flags) == 0) { + if (time_after_eq(jiffies, wait_count)) + break; + + spin_lock_irqsave(&ha->hardware_lock, flags); + intr_status = readl(&ha->reg->ctrl_status); + if (intr_status & INTR_PENDING) { + /* + * Service the interrupt. + * The ISR will save the mailbox status registers + * to a temporary storage location in the adapter + * structure. + */ + ha->mbox_status_count = outCount; + qla4xxx_interrupt_service_routine(ha, intr_status); + } + spin_unlock_irqrestore(&ha->hardware_lock, flags); + msleep(10); + } + set_current_state(TASK_RUNNING); + remove_wait_queue(&ha->mailbox_wait_queue, &wait); + + /* Check for mailbox timeout. */ + if (!test_bit(AF_MBOX_COMMAND_DONE, &ha->flags)) { + DEBUG2(printk("scsi%ld: Mailbox Cmd 0x%08X timed out ...," + " Scheduling Adapter Reset\n", ha->host_no, + mbx_cmd[0])); + ha->mailbox_timeout_count++; + mbx_sts[0] = (-1); + set_bit(DPC_RESET_HA, &ha->dpc_flags); + goto mbox_exit; + } + + /* + * Copy the mailbox out registers to the caller's mailbox in/out + * structure. + */ + spin_lock_irqsave(&ha->hardware_lock, flags); + for (i = 0; i < outCount; i++) + mbx_sts[i] = ha->mbox_status[i]; + + /* Set return status and error flags (if applicable). */ + switch (ha->mbox_status[0]) { + case MBOX_STS_COMMAND_COMPLETE: + status = QLA_SUCCESS; + break; + + case MBOX_STS_INTERMEDIATE_COMPLETION: + status = QLA_SUCCESS; + break; + + case MBOX_STS_BUSY: + DEBUG2( printk("scsi%ld: %s: Cmd = %08X, ISP BUSY\n", + ha->host_no, __func__, mbx_cmd[0])); + ha->mailbox_timeout_count++; + break; + + default: + DEBUG2(printk("scsi%ld: %s: **** FAILED, cmd = %08X, " + "sts = %08X ****\n", ha->host_no, __func__, + mbx_cmd[0], mbx_sts[0])); + break; + } + spin_unlock_irqrestore(&ha->hardware_lock, flags); + +mbox_exit: + clear_bit(AF_MBOX_COMMAND, &ha->flags); + clear_bit(AF_MBOX_COMMAND_DONE, &ha->flags); + mutex_unlock(&ha->mbox_sem); + + return status; +} + + +/** + * qla4xxx_issue_iocb - issue mailbox iocb command + * @ha: adapter state pointer. + * @buffer: buffer pointer. + * @phys_addr: physical address of buffer. + * @size: size of buffer. + * + * Issues iocbs via mailbox commands. + * TARGET_QUEUE_LOCK must be released. + * ADAPTER_STATE_LOCK must be released. + **/ +int +qla4xxx_issue_iocb(struct scsi_qla_host * ha, void *buffer, + dma_addr_t phys_addr, size_t size) +{ + uint32_t mbox_cmd[MBOX_REG_COUNT]; + uint32_t mbox_sts[MBOX_REG_COUNT]; + int status; + + memset(&mbox_cmd, 0, sizeof(mbox_cmd)); + memset(&mbox_sts, 0, sizeof(mbox_sts)); + mbox_cmd[0] = MBOX_CMD_EXECUTE_IOCB_A64; + mbox_cmd[1] = 0; + mbox_cmd[2] = LSDW(phys_addr); + mbox_cmd[3] = MSDW(phys_addr); + status = qla4xxx_mailbox_command(ha, 4, 1, &mbox_cmd[0], &mbox_sts[0]); + return status; +} + +int qla4xxx_conn_close_sess_logout(struct scsi_qla_host * ha, + uint16_t fw_ddb_index, + uint16_t connection_id, + uint16_t option) +{ + uint32_t mbox_cmd[MBOX_REG_COUNT]; + uint32_t mbox_sts[MBOX_REG_COUNT]; + + memset(&mbox_cmd, 0, sizeof(mbox_cmd)); + memset(&mbox_sts, 0, sizeof(mbox_sts)); + mbox_cmd[0] = MBOX_CMD_CONN_CLOSE_SESS_LOGOUT; + mbox_cmd[1] = fw_ddb_index; + mbox_cmd[2] = connection_id; + mbox_cmd[3] = LOGOUT_OPTION_RELOGIN; + if (qla4xxx_mailbox_command(ha, 4, 2, &mbox_cmd[0], &mbox_sts[0]) != + QLA_SUCCESS) { + DEBUG2(printk("scsi%ld: %s: MBOX_CMD_CONN_CLOSE_SESS_LOGOUT " + "option %04x failed sts %04X %04X", + ha->host_no, __func__, + option, mbox_sts[0], mbox_sts[1])); + if (mbox_sts[0] == 0x4005) + DEBUG2(printk("%s reason %04X\n", __func__, + mbox_sts[1])); + } + return QLA_SUCCESS; +} + +int qla4xxx_clear_database_entry(struct scsi_qla_host * ha, + uint16_t fw_ddb_index) +{ + uint32_t mbox_cmd[MBOX_REG_COUNT]; + uint32_t mbox_sts[MBOX_REG_COUNT]; + + memset(&mbox_cmd, 0, sizeof(mbox_cmd)); + memset(&mbox_sts, 0, sizeof(mbox_sts)); + mbox_cmd[0] = MBOX_CMD_CLEAR_DATABASE_ENTRY; + mbox_cmd[1] = fw_ddb_index; + if (qla4xxx_mailbox_command(ha, 2, 5, &mbox_cmd[0], &mbox_sts[0]) != + QLA_SUCCESS) + return QLA_ERROR; + + return QLA_SUCCESS; +} + +/** + * qla4xxx_initialize_fw_cb - initializes firmware control block. + * @ha: Pointer to host adapter structure. + **/ +int qla4xxx_initialize_fw_cb(struct scsi_qla_host * ha) +{ + struct init_fw_ctrl_blk *init_fw_cb; + dma_addr_t init_fw_cb_dma; + uint32_t mbox_cmd[MBOX_REG_COUNT]; + uint32_t mbox_sts[MBOX_REG_COUNT]; + int status = QLA_ERROR; + + init_fw_cb = dma_alloc_coherent(&ha->pdev->dev, + sizeof(struct init_fw_ctrl_blk), + &init_fw_cb_dma, GFP_KERNEL); + if (init_fw_cb == NULL) { + DEBUG2(printk("scsi%ld: %s: Unable to alloc init_cb\n", + ha->host_no, __func__)); + return 10; + } + memset(init_fw_cb, 0, sizeof(struct init_fw_ctrl_blk)); + + /* Get Initialize Firmware Control Block. */ + memset(&mbox_cmd, 0, sizeof(mbox_cmd)); + memset(&mbox_sts, 0, sizeof(mbox_sts)); + mbox_cmd[0] = MBOX_CMD_GET_INIT_FW_CTRL_BLOCK; + mbox_cmd[2] = LSDW(init_fw_cb_dma); + mbox_cmd[3] = MSDW(init_fw_cb_dma); + if (qla4xxx_mailbox_command(ha, 4, 1, &mbox_cmd[0], &mbox_sts[0]) != + QLA_SUCCESS) { + dma_free_coherent(&ha->pdev->dev, + sizeof(struct init_fw_ctrl_blk), + init_fw_cb, init_fw_cb_dma); + return status; + } + + /* Initialize request and response queues. */ + qla4xxx_init_rings(ha); + + /* Fill in the request and response queue information. */ + init_fw_cb->ReqQConsumerIndex = cpu_to_le16(ha->request_out); + init_fw_cb->ComplQProducerIndex = cpu_to_le16(ha->response_in); + init_fw_cb->ReqQLen = __constant_cpu_to_le16(REQUEST_QUEUE_DEPTH); + init_fw_cb->ComplQLen = __constant_cpu_to_le16(RESPONSE_QUEUE_DEPTH); + init_fw_cb->ReqQAddrLo = cpu_to_le32(LSDW(ha->request_dma)); + init_fw_cb->ReqQAddrHi = cpu_to_le32(MSDW(ha->request_dma)); + init_fw_cb->ComplQAddrLo = cpu_to_le32(LSDW(ha->response_dma)); + init_fw_cb->ComplQAddrHi = cpu_to_le32(MSDW(ha->response_dma)); + init_fw_cb->ShadowRegBufAddrLo = + cpu_to_le32(LSDW(ha->shadow_regs_dma)); + init_fw_cb->ShadowRegBufAddrHi = + cpu_to_le32(MSDW(ha->shadow_regs_dma)); + + /* Set up required options. */ + init_fw_cb->FwOptions |= + __constant_cpu_to_le16(FWOPT_SESSION_MODE | + FWOPT_INITIATOR_MODE); + init_fw_cb->FwOptions &= __constant_cpu_to_le16(~FWOPT_TARGET_MODE); + + /* Save some info in adapter structure. */ + ha->firmware_options = le16_to_cpu(init_fw_cb->FwOptions); + ha->tcp_options = le16_to_cpu(init_fw_cb->TCPOptions); + ha->heartbeat_interval = init_fw_cb->HeartbeatInterval; + memcpy(ha->ip_address, init_fw_cb->IPAddr, + min(sizeof(ha->ip_address), sizeof(init_fw_cb->IPAddr))); + memcpy(ha->subnet_mask, init_fw_cb->SubnetMask, + min(sizeof(ha->subnet_mask), sizeof(init_fw_cb->SubnetMask))); + memcpy(ha->gateway, init_fw_cb->GatewayIPAddr, + min(sizeof(ha->gateway), sizeof(init_fw_cb->GatewayIPAddr))); + memcpy(ha->name_string, init_fw_cb->iSCSINameString, + min(sizeof(ha->name_string), + sizeof(init_fw_cb->iSCSINameString))); + memcpy(ha->alias, init_fw_cb->Alias, + min(sizeof(ha->alias), sizeof(init_fw_cb->Alias))); + + /* Save Command Line Paramater info */ + ha->port_down_retry_count = le16_to_cpu(init_fw_cb->KeepAliveTimeout); + ha->discovery_wait = ql4xdiscoverywait; + + /* Send Initialize Firmware Control Block. */ + mbox_cmd[0] = MBOX_CMD_INITIALIZE_FIRMWARE; + mbox_cmd[1] = 0; + mbox_cmd[2] = LSDW(init_fw_cb_dma); + mbox_cmd[3] = MSDW(init_fw_cb_dma); + if (qla4xxx_mailbox_command(ha, 4, 1, &mbox_cmd[0], &mbox_sts[0]) == + QLA_SUCCESS) + status = QLA_SUCCESS; + else { + DEBUG2(printk("scsi%ld: %s: MBOX_CMD_INITIALIZE_FIRMWARE " + "failed w/ status %04X\n", ha->host_no, __func__, + mbox_sts[0])); + } + dma_free_coherent(&ha->pdev->dev, sizeof(struct init_fw_ctrl_blk), + init_fw_cb, init_fw_cb_dma); + + return status; +} + +/** + * qla4xxx_get_dhcp_ip_address - gets HBA ip address via DHCP + * @ha: Pointer to host adapter structure. + **/ +int qla4xxx_get_dhcp_ip_address(struct scsi_qla_host * ha) +{ + struct init_fw_ctrl_blk *init_fw_cb; + dma_addr_t init_fw_cb_dma; + uint32_t mbox_cmd[MBOX_REG_COUNT]; + uint32_t mbox_sts[MBOX_REG_COUNT]; + + init_fw_cb = dma_alloc_coherent(&ha->pdev->dev, + sizeof(struct init_fw_ctrl_blk), + &init_fw_cb_dma, GFP_KERNEL); + if (init_fw_cb == NULL) { + printk("scsi%ld: %s: Unable to alloc init_cb\n", ha->host_no, + __func__); + return 10; + } + + /* Get Initialize Firmware Control Block. */ + memset(&mbox_cmd, 0, sizeof(mbox_cmd)); + memset(&mbox_sts, 0, sizeof(mbox_sts)); + memset(init_fw_cb, 0, sizeof(struct init_fw_ctrl_blk)); + mbox_cmd[0] = MBOX_CMD_GET_INIT_FW_CTRL_BLOCK; + mbox_cmd[2] = LSDW(init_fw_cb_dma); + mbox_cmd[3] = MSDW(init_fw_cb_dma); + + if (qla4xxx_mailbox_command(ha, 4, 1, &mbox_cmd[0], &mbox_sts[0]) != + QLA_SUCCESS) { + DEBUG2(printk("scsi%ld: %s: Failed to get init_fw_ctrl_blk\n", + ha->host_no, __func__)); + dma_free_coherent(&ha->pdev->dev, + sizeof(struct init_fw_ctrl_blk), + init_fw_cb, init_fw_cb_dma); + return QLA_ERROR; + } + + /* Save IP Address. */ + memcpy(ha->ip_address, init_fw_cb->IPAddr, + min(sizeof(ha->ip_address), sizeof(init_fw_cb->IPAddr))); + memcpy(ha->subnet_mask, init_fw_cb->SubnetMask, + min(sizeof(ha->subnet_mask), sizeof(init_fw_cb->SubnetMask))); + memcpy(ha->gateway, init_fw_cb->GatewayIPAddr, + min(sizeof(ha->gateway), sizeof(init_fw_cb->GatewayIPAddr))); + + dma_free_coherent(&ha->pdev->dev, sizeof(struct init_fw_ctrl_blk), + init_fw_cb, init_fw_cb_dma); + + return QLA_SUCCESS; +} + +/** + * qla4xxx_get_firmware_state - gets firmware state of HBA + * @ha: Pointer to host adapter structure. + **/ +int qla4xxx_get_firmware_state(struct scsi_qla_host * ha) +{ + uint32_t mbox_cmd[MBOX_REG_COUNT]; + uint32_t mbox_sts[MBOX_REG_COUNT]; + + /* Get firmware version */ + memset(&mbox_cmd, 0, sizeof(mbox_cmd)); + memset(&mbox_sts, 0, sizeof(mbox_sts)); + mbox_cmd[0] = MBOX_CMD_GET_FW_STATE; + if (qla4xxx_mailbox_command(ha, 1, 4, &mbox_cmd[0], &mbox_sts[0]) != + QLA_SUCCESS) { + DEBUG2(printk("scsi%ld: %s: MBOX_CMD_GET_FW_STATE failed w/ " + "status %04X\n", ha->host_no, __func__, + mbox_sts[0])); + return QLA_ERROR; + } + ha->firmware_state = mbox_sts[1]; + ha->board_id = mbox_sts[2]; + ha->addl_fw_state = mbox_sts[3]; + DEBUG2(printk("scsi%ld: %s firmware_state=0x%x\n", + ha->host_no, __func__, ha->firmware_state);) + + return QLA_SUCCESS; +} + +/** + * qla4xxx_get_firmware_status - retrieves firmware status + * @ha: Pointer to host adapter structure. + **/ +int qla4xxx_get_firmware_status(struct scsi_qla_host * ha) +{ + uint32_t mbox_cmd[MBOX_REG_COUNT]; + uint32_t mbox_sts[MBOX_REG_COUNT]; + + /* Get firmware version */ + memset(&mbox_cmd, 0, sizeof(mbox_cmd)); + memset(&mbox_sts, 0, sizeof(mbox_sts)); + mbox_cmd[0] = MBOX_CMD_GET_FW_STATUS; + if (qla4xxx_mailbox_command(ha, 1, 3, &mbox_cmd[0], &mbox_sts[0]) != + QLA_SUCCESS) { + DEBUG2(printk("scsi%ld: %s: MBOX_CMD_GET_FW_STATUS failed w/ " + "status %04X\n", ha->host_no, __func__, + mbox_sts[0])); + return QLA_ERROR; + } + + /* High-water mark of IOCBs */ + ha->iocb_hiwat = mbox_sts[2]; + if (ha->iocb_hiwat > IOCB_HIWAT_CUSHION) + ha->iocb_hiwat -= IOCB_HIWAT_CUSHION; + else + dev_info(&ha->pdev->dev, "WARNING!!! You have less than %d " + "firmare IOCBs available (%d).\n", + IOCB_HIWAT_CUSHION, ha->iocb_hiwat); + + return QLA_SUCCESS; +} + +/** + * qla4xxx_get_fwddb_entry - retrieves firmware ddb entry + * @ha: Pointer to host adapter structure. + * @fw_ddb_index: Firmware's device database index + * @fw_ddb_entry: Pointer to firmware's device database entry structure + * @num_valid_ddb_entries: Pointer to number of valid ddb entries + * @next_ddb_index: Pointer to next valid device database index + * @fw_ddb_device_state: Pointer to device state + **/ +int qla4xxx_get_fwddb_entry(struct scsi_qla_host *ha, + uint16_t fw_ddb_index, + struct dev_db_entry *fw_ddb_entry, + dma_addr_t fw_ddb_entry_dma, + uint32_t *num_valid_ddb_entries, + uint32_t *next_ddb_index, + uint32_t *fw_ddb_device_state, + uint32_t *conn_err_detail, + uint16_t *tcp_source_port_num, + uint16_t *connection_id) +{ + int status = QLA_ERROR; + uint32_t mbox_cmd[MBOX_REG_COUNT]; + uint32_t mbox_sts[MBOX_REG_COUNT]; + + /* Make sure the device index is valid */ + if (fw_ddb_index >= MAX_DDB_ENTRIES) { + DEBUG2(printk("scsi%ld: %s: index [%d] out of range.\n", + ha->host_no, __func__, fw_ddb_index)); + goto exit_get_fwddb; + } + memset(&mbox_cmd, 0, sizeof(mbox_cmd)); + memset(&mbox_sts, 0, sizeof(mbox_sts)); + mbox_cmd[0] = MBOX_CMD_GET_DATABASE_ENTRY; + mbox_cmd[1] = (uint32_t) fw_ddb_index; + mbox_cmd[2] = LSDW(fw_ddb_entry_dma); + mbox_cmd[3] = MSDW(fw_ddb_entry_dma); + if (qla4xxx_mailbox_command(ha, 4, 7, &mbox_cmd[0], &mbox_sts[0]) == + QLA_ERROR) { + DEBUG2(printk("scsi%ld: %s: MBOX_CMD_GET_DATABASE_ENTRY failed" + " with status 0x%04X\n", ha->host_no, __func__, + mbox_sts[0])); + goto exit_get_fwddb; + } + if (fw_ddb_index != mbox_sts[1]) { + DEBUG2(printk("scsi%ld: %s: index mismatch [%d] != [%d].\n", + ha->host_no, __func__, fw_ddb_index, + mbox_sts[1])); + goto exit_get_fwddb; + } + if (fw_ddb_entry) { + dev_info(&ha->pdev->dev, "DDB[%d] MB0 %04x Tot %d Next %d " + "State %04x ConnErr %08x %d.%d.%d.%d:%04d \"%s\"\n", + fw_ddb_index, mbox_sts[0], mbox_sts[2], mbox_sts[3], + mbox_sts[4], mbox_sts[5], fw_ddb_entry->ipAddr[0], + fw_ddb_entry->ipAddr[1], fw_ddb_entry->ipAddr[2], + fw_ddb_entry->ipAddr[3], + le16_to_cpu(fw_ddb_entry->portNumber), + fw_ddb_entry->iscsiName); + } + if (num_valid_ddb_entries) + *num_valid_ddb_entries = mbox_sts[2]; + if (next_ddb_index) + *next_ddb_index = mbox_sts[3]; + if (fw_ddb_device_state) + *fw_ddb_device_state = mbox_sts[4]; + + /* + * RA: This mailbox has been changed to pass connection error and + * details. Its true for ISP4010 as per Version E - Not sure when it + * was changed. Get the time2wait from the fw_dd_entry field : + * default_time2wait which we call it as minTime2Wait DEV_DB_ENTRY + * struct. + */ + if (conn_err_detail) + *conn_err_detail = mbox_sts[5]; + if (tcp_source_port_num) + *tcp_source_port_num = (uint16_t) mbox_sts[6] >> 16; + if (connection_id) + *connection_id = (uint16_t) mbox_sts[6] & 0x00FF; + status = QLA_SUCCESS; + +exit_get_fwddb: + return status; +} + +/** + * qla4xxx_set_fwddb_entry - sets a ddb entry. + * @ha: Pointer to host adapter structure. + * @fw_ddb_index: Firmware's device database index + * @fw_ddb_entry: Pointer to firmware's ddb entry structure, or NULL. + * + * This routine initializes or updates the adapter's device database + * entry for the specified device. It also triggers a login for the + * specified device. Therefore, it may also be used as a secondary + * login routine when a NULL pointer is specified for the fw_ddb_entry. + **/ +int qla4xxx_set_ddb_entry(struct scsi_qla_host * ha, uint16_t fw_ddb_index, + dma_addr_t fw_ddb_entry_dma) +{ + uint32_t mbox_cmd[MBOX_REG_COUNT]; + uint32_t mbox_sts[MBOX_REG_COUNT]; + + /* Do not wait for completion. The firmware will send us an + * ASTS_DATABASE_CHANGED (0x8014) to notify us of the login status. + */ + memset(&mbox_cmd, 0, sizeof(mbox_cmd)); + memset(&mbox_sts, 0, sizeof(mbox_sts)); + + mbox_cmd[0] = MBOX_CMD_SET_DATABASE_ENTRY; + mbox_cmd[1] = (uint32_t) fw_ddb_index; + mbox_cmd[2] = LSDW(fw_ddb_entry_dma); + mbox_cmd[3] = MSDW(fw_ddb_entry_dma); + return qla4xxx_mailbox_command(ha, 4, 1, &mbox_cmd[0], &mbox_sts[0]); +} + +int qla4xxx_conn_open_session_login(struct scsi_qla_host * ha, + uint16_t fw_ddb_index) +{ + int status = QLA_ERROR; + uint32_t mbox_cmd[MBOX_REG_COUNT]; + uint32_t mbox_sts[MBOX_REG_COUNT]; + + /* Do not wait for completion. The firmware will send us an + * ASTS_DATABASE_CHANGED (0x8014) to notify us of the login status. + */ + memset(&mbox_cmd, 0, sizeof(mbox_cmd)); + memset(&mbox_sts, 0, sizeof(mbox_sts)); + mbox_cmd[0] = MBOX_CMD_CONN_OPEN_SESS_LOGIN; + mbox_cmd[1] = (uint32_t) fw_ddb_index; + mbox_cmd[2] = 0; + mbox_cmd[3] = 0; + mbox_cmd[4] = 0; + status = qla4xxx_mailbox_command(ha, 4, 0, &mbox_cmd[0], &mbox_sts[0]); + DEBUG2(printk("%s fw_ddb_index=%d status=%d mbx0_1=0x%x :0x%x\n", + __func__, fw_ddb_index, status, mbox_sts[0], + mbox_sts[1]);) + + return status; +} + +/** + * qla4xxx_get_crash_record - retrieves crash record. + * @ha: Pointer to host adapter structure. + * + * This routine retrieves a crash record from the QLA4010 after an 8002h aen. + **/ +void qla4xxx_get_crash_record(struct scsi_qla_host * ha) +{ + uint32_t mbox_cmd[MBOX_REG_COUNT]; + uint32_t mbox_sts[MBOX_REG_COUNT]; + struct crash_record *crash_record = NULL; + dma_addr_t crash_record_dma = 0; + uint32_t crash_record_size = 0; + memset(&mbox_cmd, 0, sizeof(mbox_cmd)); + memset(&mbox_sts, 0, sizeof(mbox_cmd)); + + /* Get size of crash record. */ + mbox_cmd[0] = MBOX_CMD_GET_CRASH_RECORD; + if (qla4xxx_mailbox_command(ha, 5, 5, &mbox_cmd[0], &mbox_sts[0]) != + QLA_SUCCESS) { + DEBUG2(printk("scsi%ld: %s: ERROR: Unable to retrieve size!\n", + ha->host_no, __func__)); + goto exit_get_crash_record; + } + crash_record_size = mbox_sts[4]; + if (crash_record_size == 0) { + DEBUG2(printk("scsi%ld: %s: ERROR: Crash record size is 0!\n", + ha->host_no, __func__)); + goto exit_get_crash_record; + } + + /* Alloc Memory for Crash Record. */ + crash_record = dma_alloc_coherent(&ha->pdev->dev, crash_record_size, + &crash_record_dma, GFP_KERNEL); + if (crash_record == NULL) + goto exit_get_crash_record; + + /* Get Crash Record. */ + mbox_cmd[0] = MBOX_CMD_GET_CRASH_RECORD; + mbox_cmd[2] = LSDW(crash_record_dma); + mbox_cmd[3] = MSDW(crash_record_dma); + mbox_cmd[4] = crash_record_size; + if (qla4xxx_mailbox_command(ha, 5, 5, &mbox_cmd[0], &mbox_sts[0]) != + QLA_SUCCESS) + goto exit_get_crash_record; + + /* Dump Crash Record. */ + +exit_get_crash_record: + if (crash_record) + dma_free_coherent(&ha->pdev->dev, crash_record_size, + crash_record, crash_record_dma); +} + +/** + * qla4xxx_get_conn_event_log - retrieves connection event log + * @ha: Pointer to host adapter structure. + **/ +void qla4xxx_get_conn_event_log(struct scsi_qla_host * ha) +{ + uint32_t mbox_cmd[MBOX_REG_COUNT]; + uint32_t mbox_sts[MBOX_REG_COUNT]; + struct conn_event_log_entry *event_log = NULL; + dma_addr_t event_log_dma = 0; + uint32_t event_log_size = 0; + uint32_t num_valid_entries; + uint32_t oldest_entry = 0; + uint32_t max_event_log_entries; + uint8_t i; + + + memset(&mbox_cmd, 0, sizeof(mbox_cmd)); + memset(&mbox_sts, 0, sizeof(mbox_cmd)); + + /* Get size of crash record. */ + mbox_cmd[0] = MBOX_CMD_GET_CONN_EVENT_LOG; + if (qla4xxx_mailbox_command(ha, 4, 5, &mbox_cmd[0], &mbox_sts[0]) != + QLA_SUCCESS) + goto exit_get_event_log; + + event_log_size = mbox_sts[4]; + if (event_log_size == 0) + goto exit_get_event_log; + + /* Alloc Memory for Crash Record. */ + event_log = dma_alloc_coherent(&ha->pdev->dev, event_log_size, + &event_log_dma, GFP_KERNEL); + if (event_log == NULL) + goto exit_get_event_log; + + /* Get Crash Record. */ + mbox_cmd[0] = MBOX_CMD_GET_CONN_EVENT_LOG; + mbox_cmd[2] = LSDW(event_log_dma); + mbox_cmd[3] = MSDW(event_log_dma); + if (qla4xxx_mailbox_command(ha, 4, 5, &mbox_cmd[0], &mbox_sts[0]) != + QLA_SUCCESS) { + DEBUG2(printk("scsi%ld: %s: ERROR: Unable to retrieve event " + "log!\n", ha->host_no, __func__)); + goto exit_get_event_log; + } + + /* Dump Event Log. */ + num_valid_entries = mbox_sts[1]; + + max_event_log_entries = event_log_size / + sizeof(struct conn_event_log_entry); + + if (num_valid_entries > max_event_log_entries) + oldest_entry = num_valid_entries % max_event_log_entries; + + DEBUG3(printk("scsi%ld: Connection Event Log Dump (%d entries):\n", + ha->host_no, num_valid_entries)); + + if (extended_error_logging == 3) { + if (oldest_entry == 0) { + /* Circular Buffer has not wrapped around */ + for (i=0; i < num_valid_entries; i++) { + qla4xxx_dump_buffer((uint8_t *)event_log+ + (i*sizeof(*event_log)), + sizeof(*event_log)); + } + } + else { + /* Circular Buffer has wrapped around - + * display accordingly*/ + for (i=oldest_entry; i < max_event_log_entries; i++) { + qla4xxx_dump_buffer((uint8_t *)event_log+ + (i*sizeof(*event_log)), + sizeof(*event_log)); + } + for (i=0; i < oldest_entry; i++) { + qla4xxx_dump_buffer((uint8_t *)event_log+ + (i*sizeof(*event_log)), + sizeof(*event_log)); + } + } + } + +exit_get_event_log: + if (event_log) + dma_free_coherent(&ha->pdev->dev, event_log_size, event_log, + event_log_dma); +} + +/** + * qla4xxx_reset_lun - issues LUN Reset + * @ha: Pointer to host adapter structure. + * @db_entry: Pointer to device database entry + * @un_entry: Pointer to lun entry structure + * + * This routine performs a LUN RESET on the specified target/lun. + * The caller must ensure that the ddb_entry and lun_entry pointers + * are valid before calling this routine. + **/ +int qla4xxx_reset_lun(struct scsi_qla_host * ha, struct ddb_entry * ddb_entry, + int lun) +{ + uint32_t mbox_cmd[MBOX_REG_COUNT]; + uint32_t mbox_sts[MBOX_REG_COUNT]; + int status = QLA_SUCCESS; + + DEBUG2(printk("scsi%ld:%d:%d: lun reset issued\n", ha->host_no, + ddb_entry->os_target_id, lun)); + + /* + * Send lun reset command to ISP, so that the ISP will return all + * outstanding requests with RESET status + */ + memset(&mbox_cmd, 0, sizeof(mbox_cmd)); + memset(&mbox_sts, 0, sizeof(mbox_sts)); + mbox_cmd[0] = MBOX_CMD_LUN_RESET; + mbox_cmd[1] = ddb_entry->fw_ddb_index; + mbox_cmd[2] = lun << 8; + mbox_cmd[5] = 0x01; /* Immediate Command Enable */ + qla4xxx_mailbox_command(ha, 6, 1, &mbox_cmd[0], &mbox_sts[0]); + if (mbox_sts[0] != MBOX_STS_COMMAND_COMPLETE && + mbox_sts[0] != MBOX_STS_COMMAND_ERROR) + status = QLA_ERROR; + + return status; +} + + +int qla4xxx_get_flash(struct scsi_qla_host * ha, dma_addr_t dma_addr, + uint32_t offset, uint32_t len) +{ + uint32_t mbox_cmd[MBOX_REG_COUNT]; + uint32_t mbox_sts[MBOX_REG_COUNT]; + + memset(&mbox_cmd, 0, sizeof(mbox_cmd)); + memset(&mbox_sts, 0, sizeof(mbox_sts)); + mbox_cmd[0] = MBOX_CMD_READ_FLASH; + mbox_cmd[1] = LSDW(dma_addr); + mbox_cmd[2] = MSDW(dma_addr); + mbox_cmd[3] = offset; + mbox_cmd[4] = len; + if (qla4xxx_mailbox_command(ha, 5, 2, &mbox_cmd[0], &mbox_sts[0]) != + QLA_SUCCESS) { + DEBUG2(printk("scsi%ld: %s: MBOX_CMD_READ_FLASH, failed w/ " + "status %04X %04X, offset %08x, len %08x\n", ha->host_no, + __func__, mbox_sts[0], mbox_sts[1], offset, len)); + return QLA_ERROR; + } + return QLA_SUCCESS; +} + +/** + * qla4xxx_get_fw_version - gets firmware version + * @ha: Pointer to host adapter structure. + * + * Retrieves the firmware version on HBA. In QLA4010, mailboxes 2 & 3 may + * hold an address for data. Make sure that we write 0 to those mailboxes, + * if unused. + **/ +int qla4xxx_get_fw_version(struct scsi_qla_host * ha) +{ + uint32_t mbox_cmd[MBOX_REG_COUNT]; + uint32_t mbox_sts[MBOX_REG_COUNT]; + + /* Get firmware version. */ + memset(&mbox_cmd, 0, sizeof(mbox_cmd)); + memset(&mbox_sts, 0, sizeof(mbox_sts)); + mbox_cmd[0] = MBOX_CMD_ABOUT_FW; + if (qla4xxx_mailbox_command(ha, 4, 5, &mbox_cmd[0], &mbox_sts[0]) != + QLA_SUCCESS) { + DEBUG2(printk("scsi%ld: %s: MBOX_CMD_ABOUT_FW failed w/ " + "status %04X\n", ha->host_no, __func__, mbox_sts[0])); + return QLA_ERROR; + } + + /* Save firmware version information. */ + ha->firmware_version[0] = mbox_sts[1]; + ha->firmware_version[1] = mbox_sts[2]; + ha->patch_number = mbox_sts[3]; + ha->build_number = mbox_sts[4]; + + return QLA_SUCCESS; +} + +int qla4xxx_get_default_ddb(struct scsi_qla_host *ha, dma_addr_t dma_addr) +{ + uint32_t mbox_cmd[MBOX_REG_COUNT]; + uint32_t mbox_sts[MBOX_REG_COUNT]; + + memset(&mbox_cmd, 0, sizeof(mbox_cmd)); + memset(&mbox_sts, 0, sizeof(mbox_sts)); + + mbox_cmd[0] = MBOX_CMD_GET_DATABASE_ENTRY_DEFAULTS; + mbox_cmd[2] = LSDW(dma_addr); + mbox_cmd[3] = MSDW(dma_addr); + + if (qla4xxx_mailbox_command(ha, 4, 1, &mbox_cmd[0], &mbox_sts[0]) != + QLA_SUCCESS) { + DEBUG2(printk("scsi%ld: %s: failed status %04X\n", + ha->host_no, __func__, mbox_sts[0])); + return QLA_ERROR; + } + return QLA_SUCCESS; +} + +int qla4xxx_req_ddb_entry(struct scsi_qla_host *ha, uint32_t *ddb_index) +{ + uint32_t mbox_cmd[MBOX_REG_COUNT]; + uint32_t mbox_sts[MBOX_REG_COUNT]; + + memset(&mbox_cmd, 0, sizeof(mbox_cmd)); + memset(&mbox_sts, 0, sizeof(mbox_sts)); + + mbox_cmd[0] = MBOX_CMD_REQUEST_DATABASE_ENTRY; + mbox_cmd[1] = MAX_PRST_DEV_DB_ENTRIES; + + if (qla4xxx_mailbox_command(ha, 2, 3, &mbox_cmd[0], &mbox_sts[0]) != + QLA_SUCCESS) { + if (mbox_sts[0] == MBOX_STS_COMMAND_ERROR) { + *ddb_index = mbox_sts[2]; + } else { + DEBUG2(printk("scsi%ld: %s: failed status %04X\n", + ha->host_no, __func__, mbox_sts[0])); + return QLA_ERROR; + } + } else { + *ddb_index = MAX_PRST_DEV_DB_ENTRIES; + } + + return QLA_SUCCESS; +} + + +int qla4xxx_send_tgts(struct scsi_qla_host *ha, char *ip, uint16_t port) +{ + struct dev_db_entry *fw_ddb_entry; + dma_addr_t fw_ddb_entry_dma; + uint32_t ddb_index; + int ret_val = QLA_SUCCESS; + + + fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, + sizeof(*fw_ddb_entry), + &fw_ddb_entry_dma, GFP_KERNEL); + if (!fw_ddb_entry) { + DEBUG2(printk("scsi%ld: %s: Unable to allocate dma buffer.\n", + ha->host_no, __func__)); + ret_val = QLA_ERROR; + goto qla4xxx_send_tgts_exit; + } + + ret_val = qla4xxx_get_default_ddb(ha, fw_ddb_entry_dma); + if (ret_val != QLA_SUCCESS) + goto qla4xxx_send_tgts_exit; + + ret_val = qla4xxx_req_ddb_entry(ha, &ddb_index); + if (ret_val != QLA_SUCCESS) + goto qla4xxx_send_tgts_exit; + + memset((void *)fw_ddb_entry->iSCSIAlias, 0, + sizeof(fw_ddb_entry->iSCSIAlias)); + + memset((void *)fw_ddb_entry->iscsiName, 0, + sizeof(fw_ddb_entry->iscsiName)); + + memset((void *)fw_ddb_entry->ipAddr, 0, sizeof(fw_ddb_entry->ipAddr)); + memset((void *)fw_ddb_entry->targetAddr, 0, + sizeof(fw_ddb_entry->targetAddr)); + + fw_ddb_entry->options = (DDB_OPT_DISC_SESSION | DDB_OPT_TARGET); + fw_ddb_entry->portNumber = cpu_to_le16(ntohs(port)); + + fw_ddb_entry->ipAddr[0] = *ip; + fw_ddb_entry->ipAddr[1] = *(ip + 1); + fw_ddb_entry->ipAddr[2] = *(ip + 2); + fw_ddb_entry->ipAddr[3] = *(ip + 3); + + ret_val = qla4xxx_set_ddb_entry(ha, ddb_index, fw_ddb_entry_dma); + +qla4xxx_send_tgts_exit: + dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), + fw_ddb_entry, fw_ddb_entry_dma); + return ret_val; +} + diff -Naurp linux-2.6.17.noarch/drivers/scsi/qla4xxx/ql4_nvram.c linux-2.6.17.noarch.qla4xxx/drivers/scsi/qla4xxx/ql4_nvram.c --- linux-2.6.17.noarch/drivers/scsi/qla4xxx/ql4_nvram.c 1969-12-31 19:00:00.000000000 -0500 +++ linux-2.6.17.noarch.qla4xxx/drivers/scsi/qla4xxx/ql4_nvram.c 2006-08-17 12:57:22.000000000 -0400 @@ -0,0 +1,224 @@ +/* + * QLogic iSCSI HBA Driver + * Copyright (c) 2003-2006 QLogic Corporation + * + * See LICENSE.qla4xxx for copyright and licensing details. + */ + +#include "ql4_def.h" + +static inline int eeprom_size(struct scsi_qla_host *ha) +{ + return is_qla4022(ha) ? FM93C86A_SIZE_16 : FM93C66A_SIZE_16; +} + +static inline int eeprom_no_addr_bits(struct scsi_qla_host *ha) +{ + return is_qla4022(ha) ? FM93C86A_NO_ADDR_BITS_16 : + FM93C56A_NO_ADDR_BITS_16; +} + +static inline int eeprom_no_data_bits(struct scsi_qla_host *ha) +{ + return FM93C56A_DATA_BITS_16; +} + +static int fm93c56a_select(struct scsi_qla_host * ha) +{ + DEBUG5(printk(KERN_ERR "fm93c56a_select:\n")); + + ha->eeprom_cmd_data = AUBURN_EEPROM_CS_1 | 0x000f0000; + writel(ha->eeprom_cmd_data, isp_nvram(ha)); + readl(isp_nvram(ha)); + return 1; +} + +static int fm93c56a_cmd(struct scsi_qla_host * ha, int cmd, int addr) +{ + int i; + int mask; + int dataBit; + int previousBit; + + /* Clock in a zero, then do the start bit. */ + writel(ha->eeprom_cmd_data | AUBURN_EEPROM_DO_1, isp_nvram(ha)); + writel(ha->eeprom_cmd_data | AUBURN_EEPROM_DO_1 | + AUBURN_EEPROM_CLK_RISE, isp_nvram(ha)); + writel(ha->eeprom_cmd_data | AUBURN_EEPROM_DO_1 | + AUBURN_EEPROM_CLK_FALL, isp_nvram(ha)); + readl(isp_nvram(ha)); + mask = 1 << (FM93C56A_CMD_BITS - 1); + + /* Force the previous data bit to be different. */ + previousBit = 0xffff; + for (i = 0; i < FM93C56A_CMD_BITS; i++) { + dataBit = + (cmd & mask) ? AUBURN_EEPROM_DO_1 : AUBURN_EEPROM_DO_0; + if (previousBit != dataBit) { + + /* + * If the bit changed, then change the DO state to + * match. + */ + writel(ha->eeprom_cmd_data | dataBit, isp_nvram(ha)); + previousBit = dataBit; + } + writel(ha->eeprom_cmd_data | dataBit | + AUBURN_EEPROM_CLK_RISE, isp_nvram(ha)); + writel(ha->eeprom_cmd_data | dataBit | + AUBURN_EEPROM_CLK_FALL, isp_nvram(ha)); + readl(isp_nvram(ha)); + cmd = cmd << 1; + } + mask = 1 << (eeprom_no_addr_bits(ha) - 1); + + /* Force the previous data bit to be different. */ + previousBit = 0xffff; + for (i = 0; i < eeprom_no_addr_bits(ha); i++) { + dataBit = addr & mask ? AUBURN_EEPROM_DO_1 : + AUBURN_EEPROM_DO_0; + if (previousBit != dataBit) { + /* + * If the bit changed, then change the DO state to + * match. + */ + writel(ha->eeprom_cmd_data | dataBit, isp_nvram(ha)); + previousBit = dataBit; + } + writel(ha->eeprom_cmd_data | dataBit | + AUBURN_EEPROM_CLK_RISE, isp_nvram(ha)); + writel(ha->eeprom_cmd_data | dataBit | + AUBURN_EEPROM_CLK_FALL, isp_nvram(ha)); + readl(isp_nvram(ha)); + addr = addr << 1; + } + return 1; +} + +static int fm93c56a_deselect(struct scsi_qla_host * ha) +{ + ha->eeprom_cmd_data = AUBURN_EEPROM_CS_0 | 0x000f0000; + writel(ha->eeprom_cmd_data, isp_nvram(ha)); + readl(isp_nvram(ha)); + return 1; +} + +static int fm93c56a_datain(struct scsi_qla_host * ha, unsigned short *value) +{ + int i; + int data = 0; + int dataBit; + + /* Read the data bits + * The first bit is a dummy. Clock right over it. */ + for (i = 0; i < eeprom_no_data_bits(ha); i++) { + writel(ha->eeprom_cmd_data | + AUBURN_EEPROM_CLK_RISE, isp_nvram(ha)); + writel(ha->eeprom_cmd_data | + AUBURN_EEPROM_CLK_FALL, isp_nvram(ha)); + dataBit = + (readw(isp_nvram(ha)) & AUBURN_EEPROM_DI_1) ? 1 : 0; + data = (data << 1) | dataBit; + } + + *value = data; + return 1; +} + +static int eeprom_readword(int eepromAddr, u16 * value, + struct scsi_qla_host * ha) +{ + fm93c56a_select(ha); + fm93c56a_cmd(ha, FM93C56A_READ, eepromAddr); + fm93c56a_datain(ha, value); + fm93c56a_deselect(ha); + return 1; +} + +/* Hardware_lock must be set before calling */ +u16 rd_nvram_word(struct scsi_qla_host * ha, int offset) +{ + u16 val; + + /* NOTE: NVRAM uses half-word addresses */ + eeprom_readword(offset, &val, ha); + return val; +} + +int qla4xxx_is_nvram_configuration_valid(struct scsi_qla_host * ha) +{ + int status = QLA_ERROR; + uint16_t checksum = 0; + uint32_t index; + unsigned long flags; + + spin_lock_irqsave(&ha->hardware_lock, flags); + for (index = 0; index < eeprom_size(ha); index++) + checksum += rd_nvram_word(ha, index); + spin_unlock_irqrestore(&ha->hardware_lock, flags); + + if (checksum == 0) + status = QLA_SUCCESS; + + return status; +} + +/************************************************************************* + * + * Hardware Semaphore routines + * + *************************************************************************/ +int ql4xxx_sem_spinlock(struct scsi_qla_host * ha, u32 sem_mask, u32 sem_bits) +{ + uint32_t value; + unsigned long flags; + unsigned int seconds = 30; + + DEBUG2(printk("scsi%ld : Trying to get SEM lock - mask= 0x%x, code = " + "0x%x\n", ha->host_no, sem_mask, sem_bits)); + do { + spin_lock_irqsave(&ha->hardware_lock, flags); + writel((sem_mask | sem_bits), isp_semaphore(ha)); + value = readw(isp_semaphore(ha)); + spin_unlock_irqrestore(&ha->hardware_lock, flags); + if ((value & (sem_mask >> 16)) == sem_bits) { + DEBUG2(printk("scsi%ld : Got SEM LOCK - mask= 0x%x, " + "code = 0x%x\n", ha->host_no, + sem_mask, sem_bits)); + return QLA_SUCCESS; + } + ssleep(1); + } while (--seconds); + return QLA_ERROR; +} + +void ql4xxx_sem_unlock(struct scsi_qla_host * ha, u32 sem_mask) +{ + unsigned long flags; + + spin_lock_irqsave(&ha->hardware_lock, flags); + writel(sem_mask, isp_semaphore(ha)); + readl(isp_semaphore(ha)); + spin_unlock_irqrestore(&ha->hardware_lock, flags); + + DEBUG2(printk("scsi%ld : UNLOCK SEM - mask= 0x%x\n", ha->host_no, + sem_mask)); +} + +int ql4xxx_sem_lock(struct scsi_qla_host * ha, u32 sem_mask, u32 sem_bits) +{ + uint32_t value; + unsigned long flags; + + spin_lock_irqsave(&ha->hardware_lock, flags); + writel((sem_mask | sem_bits), isp_semaphore(ha)); + value = readw(isp_semaphore(ha)); + spin_unlock_irqrestore(&ha->hardware_lock, flags); + if ((value & (sem_mask >> 16)) == sem_bits) { + DEBUG2(printk("scsi%ld : Got SEM LOCK - mask= 0x%x, code = " + "0x%x, sema code=0x%x\n", ha->host_no, + sem_mask, sem_bits, value)); + return 1; + } + return 0; +} diff -Naurp linux-2.6.17.noarch/drivers/scsi/qla4xxx/ql4_nvram.h linux-2.6.17.noarch.qla4xxx/drivers/scsi/qla4xxx/ql4_nvram.h --- linux-2.6.17.noarch/drivers/scsi/qla4xxx/ql4_nvram.h 1969-12-31 19:00:00.000000000 -0500 +++ linux-2.6.17.noarch.qla4xxx/drivers/scsi/qla4xxx/ql4_nvram.h 2006-08-17 12:57:22.000000000 -0400 @@ -0,0 +1,256 @@ +/* + * QLogic iSCSI HBA Driver + * Copyright (c) 2003-2006 QLogic Corporation + * + * See LICENSE.qla4xxx for copyright and licensing details. + */ + +#ifndef _QL4XNVRM_H_ +#define _QL4XNVRM_H_ + +/* + * AM29LV Flash definitions + */ +#define FM93C56A_SIZE_8 0x100 +#define FM93C56A_SIZE_16 0x80 +#define FM93C66A_SIZE_8 0x200 +#define FM93C66A_SIZE_16 0x100/* 4010 */ +#define FM93C86A_SIZE_16 0x400/* 4022 */ + +#define FM93C56A_START 0x1 + +// Commands +#define FM93C56A_READ 0x2 +#define FM93C56A_WEN 0x0 +#define FM93C56A_WRITE 0x1 +#define FM93C56A_WRITE_ALL 0x0 +#define FM93C56A_WDS 0x0 +#define FM93C56A_ERASE 0x3 +#define FM93C56A_ERASE_ALL 0x0 + +/* Command Extentions */ +#define FM93C56A_WEN_EXT 0x3 +#define FM93C56A_WRITE_ALL_EXT 0x1 +#define FM93C56A_WDS_EXT 0x0 +#define FM93C56A_ERASE_ALL_EXT 0x2 + +/* Address Bits */ +#define FM93C56A_NO_ADDR_BITS_16 8 /* 4010 */ +#define FM93C56A_NO_ADDR_BITS_8 9 /* 4010 */ +#define FM93C86A_NO_ADDR_BITS_16 10 /* 4022 */ + +/* Data Bits */ +#define FM93C56A_DATA_BITS_16 16 +#define FM93C56A_DATA_BITS_8 8 + +/* Special Bits */ +#define FM93C56A_READ_DUMMY_BITS 1 +#define FM93C56A_READY 0 +#define FM93C56A_BUSY 1 +#define FM93C56A_CMD_BITS 2 + +/* Auburn Bits */ +#define AUBURN_EEPROM_DI 0x8 +#define AUBURN_EEPROM_DI_0 0x0 +#define AUBURN_EEPROM_DI_1 0x8 +#define AUBURN_EEPROM_DO 0x4 +#define AUBURN_EEPROM_DO_0 0x0 +#define AUBURN_EEPROM_DO_1 0x4 +#define AUBURN_EEPROM_CS 0x2 +#define AUBURN_EEPROM_CS_0 0x0 +#define AUBURN_EEPROM_CS_1 0x2 +#define AUBURN_EEPROM_CLK_RISE 0x1 +#define AUBURN_EEPROM_CLK_FALL 0x0 + +/* */ +/* EEPROM format */ +/* */ +struct bios_params { + uint16_t SpinUpDelay:1; + uint16_t BIOSDisable:1; + uint16_t MMAPEnable:1; + uint16_t BootEnable:1; + uint16_t Reserved0:12; + uint8_t bootID0:7; + uint8_t bootID0Valid:1; + uint8_t bootLUN0[8]; + uint8_t bootID1:7; + uint8_t bootID1Valid:1; + uint8_t bootLUN1[8]; + uint16_t MaxLunsPerTarget; + uint8_t Reserved1[10]; +}; + +struct eeprom_port_cfg { + + /* MTU MAC 0 */ + u16 etherMtu_mac; + + /* Flow Control MAC 0 */ + u16 pauseThreshold_mac; + u16 resumeThreshold_mac; + u16 reserved[13]; +}; + +struct eeprom_function_cfg { + u8 reserved[30]; + + /* MAC ADDR */ + u8 macAddress[6]; + u8 macAddressSecondary[6]; + u16 subsysVendorId; + u16 subsysDeviceId; +}; + +struct eeprom_data { + union { + struct { /* isp4010 */ + u8 asic_id[4]; /* x00 */ + u8 version; /* x04 */ + u8 reserved; /* x05 */ + u16 board_id; /* x06 */ +#define EEPROM_BOARDID_ELDORADO 1 +#define EEPROM_BOARDID_PLACER 2 + +#define EEPROM_SERIAL_NUM_SIZE 16 + u8 serial_number[EEPROM_SERIAL_NUM_SIZE]; /* x08 */ + + /* ExtHwConfig: */ + /* Offset = 24bytes + * + * | SSRAM Size| |ST|PD|SDRAM SZ| W| B| SP | | + * |15|14|13|12|11|10| 9| 8| 7| 6| 5| 4| 3| 2| 1| 0| + * +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ + */ + u16 ext_hw_conf; /* x18 */ + u8 mac0[6]; /* x1A */ + u8 mac1[6]; /* x20 */ + u8 mac2[6]; /* x26 */ + u8 mac3[6]; /* x2C */ + u16 etherMtu; /* x32 */ + u16 macConfig; /* x34 */ +#define MAC_CONFIG_ENABLE_ANEG 0x0001 +#define MAC_CONFIG_ENABLE_PAUSE 0x0002 + u16 phyConfig; /* x36 */ +#define PHY_CONFIG_PHY_ADDR_MASK 0x1f +#define PHY_CONFIG_ENABLE_FW_MANAGEMENT_MASK 0x20 + u16 topcat; /* x38 */ +#define TOPCAT_PRESENT 0x0100 +#define TOPCAT_MASK 0xFF00 + +#define EEPROM_UNUSED_1_SIZE 2 + u8 unused_1[EEPROM_UNUSED_1_SIZE]; /* x3A */ + u16 bufletSize; /* x3C */ + u16 bufletCount; /* x3E */ + u16 bufletPauseThreshold; /* x40 */ + u16 tcpWindowThreshold50; /* x42 */ + u16 tcpWindowThreshold25; /* x44 */ + u16 tcpWindowThreshold0; /* x46 */ + u16 ipHashTableBaseHi; /* x48 */ + u16 ipHashTableBaseLo; /* x4A */ + u16 ipHashTableSize; /* x4C */ + u16 tcpHashTableBaseHi; /* x4E */ + u16 tcpHashTableBaseLo; /* x50 */ + u16 tcpHashTableSize; /* x52 */ + u16 ncbTableBaseHi; /* x54 */ + u16 ncbTableBaseLo; /* x56 */ + u16 ncbTableSize; /* x58 */ + u16 drbTableBaseHi; /* x5A */ + u16 drbTableBaseLo; /* x5C */ + u16 drbTableSize; /* x5E */ + +#define EEPROM_UNUSED_2_SIZE 4 + u8 unused_2[EEPROM_UNUSED_2_SIZE]; /* x60 */ + u16 ipReassemblyTimeout; /* x64 */ + u16 tcpMaxWindowSizeHi; /* x66 */ + u16 tcpMaxWindowSizeLo; /* x68 */ + u32 net_ip_addr0; /* x6A Added for TOE + * functionality. */ + u32 net_ip_addr1; /* x6E */ + u32 scsi_ip_addr0; /* x72 */ + u32 scsi_ip_addr1; /* x76 */ +#define EEPROM_UNUSED_3_SIZE 128 /* changed from 144 to account + * for ip addresses */ + u8 unused_3[EEPROM_UNUSED_3_SIZE]; /* x7A */ + u16 subsysVendorId_f0; /* xFA */ + u16 subsysDeviceId_f0; /* xFC */ + + /* Address = 0x7F */ +#define FM93C56A_SIGNATURE 0x9356 +#define FM93C66A_SIGNATURE 0x9366 + u16 signature; /* xFE */ + +#define EEPROM_UNUSED_4_SIZE 250 + u8 unused_4[EEPROM_UNUSED_4_SIZE]; /* x100 */ + u16 subsysVendorId_f1; /* x1FA */ + u16 subsysDeviceId_f1; /* x1FC */ + u16 checksum; /* x1FE */ + } __attribute__ ((packed)) isp4010; + struct { /* isp4022 */ + u8 asicId[4]; /* x00 */ + u8 version; /* x04 */ + u8 reserved_5; /* x05 */ + u16 boardId; /* x06 */ + u8 boardIdStr[16]; /* x08 */ + u8 serialNumber[16]; /* x18 */ + + /* External Hardware Configuration */ + u16 ext_hw_conf; /* x28 */ + + /* MAC 0 CONFIGURATION */ + struct eeprom_port_cfg macCfg_port0; /* x2A */ + + /* MAC 1 CONFIGURATION */ + struct eeprom_port_cfg macCfg_port1; /* x4A */ + + /* DDR SDRAM Configuration */ + u16 bufletSize; /* x6A */ + u16 bufletCount; /* x6C */ + u16 tcpWindowThreshold50; /* x6E */ + u16 tcpWindowThreshold25; /* x70 */ + u16 tcpWindowThreshold0; /* x72 */ + u16 ipHashTableBaseHi; /* x74 */ + u16 ipHashTableBaseLo; /* x76 */ + u16 ipHashTableSize; /* x78 */ + u16 tcpHashTableBaseHi; /* x7A */ + u16 tcpHashTableBaseLo; /* x7C */ + u16 tcpHashTableSize; /* x7E */ + u16 ncbTableBaseHi; /* x80 */ + u16 ncbTableBaseLo; /* x82 */ + u16 ncbTableSize; /* x84 */ + u16 drbTableBaseHi; /* x86 */ + u16 drbTableBaseLo; /* x88 */ + u16 drbTableSize; /* x8A */ + u16 reserved_142[4]; /* x8C */ + + /* TCP/IP Parameters */ + u16 ipReassemblyTimeout; /* x94 */ + u16 tcpMaxWindowSize; /* x96 */ + u16 ipSecurity; /* x98 */ + u8 reserved_156[294]; /* x9A */ + u16 qDebug[8]; /* QLOGIC USE ONLY x1C0 */ + struct eeprom_function_cfg funcCfg_fn0; /* x1D0 */ + u16 reserved_510; /* x1FE */ + + /* Address = 512 */ + u8 oemSpace[432]; /* x200 */ + struct bios_params sBIOSParams_fn1; /* x3B0 */ + struct eeprom_function_cfg funcCfg_fn1; /* x3D0 */ + u16 reserved_1022; /* x3FE */ + + /* Address = 1024 */ + u8 reserved_1024[464]; /* x400 */ + struct eeprom_function_cfg funcCfg_fn2; /* x5D0 */ + u16 reserved_1534; /* x5FE */ + + /* Address = 1536 */ + u8 reserved_1536[432]; /* x600 */ + struct bios_params sBIOSParams_fn3; /* x7B0 */ + struct eeprom_function_cfg funcCfg_fn3; /* x7D0 */ + u16 checksum; /* x7FE */ + } __attribute__ ((packed)) isp4022; + }; +}; + + +#endif /* _QL4XNVRM_H_ */ diff -Naurp linux-2.6.17.noarch/drivers/scsi/qla4xxx/ql4_os.c linux-2.6.17.noarch.qla4xxx/drivers/scsi/qla4xxx/ql4_os.c --- linux-2.6.17.noarch/drivers/scsi/qla4xxx/ql4_os.c 1969-12-31 19:00:00.000000000 -0500 +++ linux-2.6.17.noarch.qla4xxx/drivers/scsi/qla4xxx/ql4_os.c 2006-08-17 13:00:29.000000000 -0400 @@ -0,0 +1,1758 @@ +/* + * QLogic iSCSI HBA Driver + * Copyright (c) 2003-2006 QLogic Corporation + * + * See LICENSE.qla4xxx for copyright and licensing details. + */ +#include <linux/moduleparam.h> + +#include <scsi/scsi_tcq.h> +#include <scsi/scsicam.h> + +#include "ql4_def.h" + +/* + * Driver version + */ +char qla4xxx_version_str[40]; + +/* + * SRB allocation cache + */ +static kmem_cache_t *srb_cachep; + +/* + * Module parameter information and variables + */ +int ql4xdiscoverywait = 60; +module_param(ql4xdiscoverywait, int, S_IRUGO | S_IRUSR); +MODULE_PARM_DESC(ql4xdiscoverywait, "Discovery wait time"); +int ql4xdontresethba = 0; +module_param(ql4xdontresethba, int, S_IRUGO | S_IRUSR); +MODULE_PARM_DESC(ql4xdontresethba, + "Dont reset the HBA when the driver gets 0x8002 AEN " + " default it will reset hba :0" + " set to 1 to avoid resetting HBA"); + +int extended_error_logging = 0; /* 0 = off, 1 = log errors */ +module_param(extended_error_logging, int, S_IRUGO | S_IRUSR); +MODULE_PARM_DESC(extended_error_logging, + "Option to enable extended error logging, " + "Default is 0 - no logging, 1 - debug logging"); + +/* + * SCSI host template entry points + */ + +void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha); + +/* + * iSCSI template entry points + */ +static int qla4xxx_tgt_dscvr(enum iscsi_tgt_dscvr type, uint32_t host_no, + uint32_t enable, struct sockaddr *dst_addr); +static int qla4xxx_conn_get_param(struct iscsi_cls_conn *conn, + enum iscsi_param param, char *buf); +static int qla4xxx_sess_get_param(struct iscsi_cls_session *sess, + enum iscsi_param param, char *buf); +static void qla4xxx_conn_stop(struct iscsi_cls_conn *conn, int flag); +static int qla4xxx_conn_start(struct iscsi_cls_conn *conn); +static void qla4xxx_recovery_timedout(struct iscsi_cls_session *session); + +/* + * SCSI host template entry points + */ +static int qla4xxx_queuecommand(struct scsi_cmnd *cmd, + void (*done) (struct scsi_cmnd *)); +static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd); +static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd); +static int qla4xxx_slave_alloc(struct scsi_device *device); +static int qla4xxx_slave_configure(struct scsi_device *device); + +static struct scsi_host_template qla4xxx_driver_template = { + .module = THIS_MODULE, + .name = DRIVER_NAME, + .proc_name = DRIVER_NAME, + .queuecommand = qla4xxx_queuecommand, + + .eh_device_reset_handler = qla4xxx_eh_device_reset, + .eh_host_reset_handler = qla4xxx_eh_host_reset, + + .slave_configure = qla4xxx_slave_configure, + .slave_alloc = qla4xxx_slave_alloc, + + .this_id = -1, + .cmd_per_lun = 3, + .use_clustering = ENABLE_CLUSTERING, + .sg_tablesize = SG_ALL, + + .max_sectors = 0xFFFF, +}; + +static struct iscsi_transport qla4xxx_iscsi_transport = { + .owner = THIS_MODULE, + .name = DRIVER_NAME, + .param_mask = ISCSI_CONN_PORT | + ISCSI_CONN_ADDRESS | + ISCSI_TARGET_NAME | + ISCSI_TPGT, + .sessiondata_size = sizeof(struct ddb_entry), + .host_template = &qla4xxx_driver_template, + + .tgt_dscvr = qla4xxx_tgt_dscvr, + .get_conn_param = qla4xxx_conn_get_param, + .get_session_param = qla4xxx_sess_get_param, + .start_conn = qla4xxx_conn_start, + .stop_conn = qla4xxx_conn_stop, + .session_recovery_timedout = qla4xxx_recovery_timedout, +}; + +static struct scsi_transport_template *qla4xxx_scsi_transport; + +static void qla4xxx_recovery_timedout(struct iscsi_cls_session *session) +{ + struct ddb_entry *ddb_entry = session->dd_data; + struct scsi_qla_host *ha = ddb_entry->ha; + + DEBUG2(printk("scsi%ld: %s: index [%d] port down retry count of (%d) " + "secs exhausted, marking device DEAD.\n", ha->host_no, + __func__, ddb_entry->fw_ddb_index, + ha->port_down_retry_count)); + + atomic_set(&ddb_entry->state, DDB_STATE_DEAD); + + DEBUG2(printk("scsi%ld: %s: scheduling dpc routine - dpc flags = " + "0x%lx\n", ha->host_no, __func__, ha->dpc_flags)); + queue_work(ha->dpc_thread, &ha->dpc_work); +} + +static int qla4xxx_conn_start(struct iscsi_cls_conn *conn) +{ + struct iscsi_cls_session *session; + struct ddb_entry *ddb_entry; + + session = iscsi_dev_to_session(conn->dev.parent); + ddb_entry = session->dd_data; + + DEBUG2(printk("scsi%ld: %s: index [%d] starting conn\n", + ddb_entry->ha->host_no, __func__, + ddb_entry->fw_ddb_index)); + iscsi_unblock_session(session); + return 0; +} + +static void qla4xxx_conn_stop(struct iscsi_cls_conn *conn, int flag) +{ + struct iscsi_cls_session *session; + struct ddb_entry *ddb_entry; + + session = iscsi_dev_to_session(conn->dev.parent); + ddb_entry = session->dd_data; + + DEBUG2(printk("scsi%ld: %s: index [%d] stopping conn\n", + ddb_entry->ha->host_no, __func__, + ddb_entry->fw_ddb_index)); + if (flag == STOP_CONN_RECOVER) + iscsi_block_session(session); + else + printk(KERN_ERR "iscsi: invalid stop flag %d\n", flag); +} + +static int qla4xxx_sess_get_param(struct iscsi_cls_session *sess, + enum iscsi_param param, char *buf) +{ + struct ddb_entry *ddb_entry = sess->dd_data; + int len; + + switch (param) { + case ISCSI_PARAM_TARGET_NAME: + len = snprintf(buf, PAGE_SIZE - 1, "%s\n", + ddb_entry->iscsi_name); + break; + case ISCSI_PARAM_TPGT: + len = sprintf(buf, "%u\n", ddb_entry->tpgt); + break; + default: + return -ENOSYS; + } + + return len; +} + +static int qla4xxx_conn_get_param(struct iscsi_cls_conn *conn, + enum iscsi_param param, char *buf) +{ + struct iscsi_cls_session *session; + struct ddb_entry *ddb_entry; + int len; + + session = iscsi_dev_to_session(conn->dev.parent); + ddb_entry = session->dd_data; + + switch (param) { + case ISCSI_PARAM_CONN_PORT: + len = sprintf(buf, "%hu\n", ddb_entry->port); + break; + case ISCSI_PARAM_CONN_ADDRESS: + /* TODO: what are the ipv6 bits */ + len = sprintf(buf, "%u.%u.%u.%u\n", + NIPQUAD(ddb_entry->ip_addr)); + break; + default: + return -ENOSYS; + } + + return len; +} + +static int qla4xxx_tgt_dscvr(enum iscsi_tgt_dscvr type, uint32_t host_no, + uint32_t enable, struct sockaddr *dst_addr) +{ + struct scsi_qla_host *ha; + struct Scsi_Host *shost; + struct sockaddr_in *addr; + struct sockaddr_in6 *addr6; + int ret = 0; + + shost = scsi_host_lookup(host_no); + if (IS_ERR(shost)) { + printk(KERN_ERR "Could not find host no %u\n", host_no); + return -ENODEV; + } + + ha = (struct scsi_qla_host *) shost->hostdata; + + switch (type) { + case ISCSI_TGT_DSCVR_SEND_TARGETS: + if (dst_addr->sa_family == AF_INET) { + addr = (struct sockaddr_in *)dst_addr; + if (qla4xxx_send_tgts(ha, (char *)&addr->sin_addr, + addr->sin_port) != QLA_SUCCESS) + ret = -EIO; + } else if (dst_addr->sa_family == AF_INET6) { + /* + * TODO: fix qla4xxx_send_tgts + */ + addr6 = (struct sockaddr_in6 *)dst_addr; + if (qla4xxx_send_tgts(ha, (char *)&addr6->sin6_addr, + addr6->sin6_port) != QLA_SUCCESS) + ret = -EIO; + } else + ret = -ENOSYS; + break; + default: + ret = -ENOSYS; + } + + scsi_host_put(shost); + return ret; +} + +void qla4xxx_destroy_sess(struct ddb_entry *ddb_entry) +{ + if (!ddb_entry->sess) + return; + + if (ddb_entry->conn) { + iscsi_if_destroy_session_done(ddb_entry->conn); + iscsi_destroy_conn(ddb_entry->conn); + iscsi_remove_session(ddb_entry->sess); + } + iscsi_free_session(ddb_entry->sess); +} + +int qla4xxx_add_sess(struct ddb_entry *ddb_entry, int scan) +{ + int err; + + err = iscsi_add_session(ddb_entry->sess, ddb_entry->fw_ddb_index); + if (err) { + DEBUG2(printk(KERN_ERR "Could not add session.\n")); + return err; + } + + ddb_entry->conn = iscsi_create_conn(ddb_entry->sess, 0); + if (!ddb_entry->conn) { + iscsi_remove_session(ddb_entry->sess); + DEBUG2(printk(KERN_ERR "Could not add connection.\n")); + return -ENOMEM; + } + + ddb_entry->sess->recovery_tmo = ddb_entry->ha->port_down_retry_count; + if (scan) + scsi_scan_target(&ddb_entry->sess->dev, 0, + ddb_entry->sess->target_id, + SCAN_WILD_CARD, 0); + iscsi_if_create_session_done(ddb_entry->conn); + return 0; +} + +struct ddb_entry *qla4xxx_alloc_sess(struct scsi_qla_host *ha) +{ + struct ddb_entry *ddb_entry; + struct iscsi_cls_session *sess; + + sess = iscsi_alloc_session(ha->host, &qla4xxx_iscsi_transport); + if (!sess) + return NULL; + + ddb_entry = sess->dd_data; + memset(ddb_entry, 0, sizeof(*ddb_entry)); + ddb_entry->ha = ha; + ddb_entry->sess = sess; + return ddb_entry; +} + +/* + * Timer routines + */ + +static void qla4xxx_start_timer(struct scsi_qla_host *ha, void *func, + unsigned long interval) +{ + DEBUG(printk("scsi: %s: Starting timer thread for adapter %d\n", + __func__, ha->host->host_no)); + init_timer(&ha->timer); + ha->timer.expires = jiffies + interval * HZ; + ha->timer.data = (unsigned long)ha; + ha->timer.function = (void (*)(unsigned long))func; + add_timer(&ha->timer); + ha->timer_active = 1; +} + +static void qla4xxx_stop_timer(struct scsi_qla_host *ha) +{ + del_timer_sync(&ha->timer); + ha->timer_active = 0; +} + +/*** + * qla4xxx_mark_device_missing - mark a device as missing. + * @ha: Pointer to host adapter structure. + * @ddb_entry: Pointer to device database entry + * + * This routine marks a device missing and resets the relogin retry count. + **/ +void qla4xxx_mark_device_missing(struct scsi_qla_host *ha, + struct ddb_entry *ddb_entry) +{ + atomic_set(&ddb_entry->state, DDB_STATE_MISSING); + DEBUG3(printk("scsi%d:%d:%d: index [%d] marked MISSING\n", + ha->host_no, ddb_entry->bus, ddb_entry->target, + ddb_entry->fw_ddb_index)); + iscsi_conn_error(ddb_entry->conn, ISCSI_ERR_CONN_FAILED); +} + +static struct srb* qla4xxx_get_new_srb(struct scsi_qla_host *ha, + struct ddb_entry *ddb_entry, + struct scsi_cmnd *cmd, + void (*done)(struct scsi_cmnd *)) +{ + struct srb *srb; + + srb = mempool_alloc(ha->srb_mempool, GFP_ATOMIC); + if (!srb) + return srb; + + atomic_set(&srb->ref_count, 1); + srb->ha = ha; + srb->ddb = ddb_entry; + srb->cmd = cmd; + srb->flags = 0; + cmd->SCp.ptr = (void *)srb; + cmd->scsi_done = done; + + return srb; +} + +static void qla4xxx_srb_free_dma(struct scsi_qla_host *ha, struct srb *srb) +{ + struct scsi_cmnd *cmd = srb->cmd; + + if (srb->flags & SRB_DMA_VALID) { + if (cmd->use_sg) { + pci_unmap_sg(ha->pdev, cmd->request_buffer, + cmd->use_sg, cmd->sc_data_direction); + } else if (cmd->request_bufflen) { + pci_unmap_single(ha->pdev, srb->dma_handle, + cmd->request_bufflen, + cmd->sc_data_direction); + } + srb->flags &= ~SRB_DMA_VALID; + } + cmd->SCp.ptr = NULL; +} + +void qla4xxx_srb_compl(struct scsi_qla_host *ha, struct srb *srb) +{ + struct scsi_cmnd *cmd = srb->cmd; + + qla4xxx_srb_free_dma(ha, srb); + + mempool_free(srb, ha->srb_mempool); + + cmd->scsi_done(cmd); +} + +/** + * qla4xxx_queuecommand - scsi layer issues scsi command to driver. + * @cmd: Pointer to Linux's SCSI command structure + * @done_fn: Function that the driver calls to notify the SCSI mid-layer + * that the command has been processed. + * + * Remarks: + * This routine is invoked by Linux to send a SCSI command to the driver. + * The mid-level driver tries to ensure that queuecommand never gets + * invoked concurrently with itself or the interrupt handler (although + * the interrupt handler may call this routine as part of request- + * completion handling). Unfortunely, it sometimes calls the scheduler + * in interrupt context which is a big NO! NO!. + **/ +static int qla4xxx_queuecommand(struct scsi_cmnd *cmd, + void (*done)(struct scsi_cmnd *)) +{ + struct scsi_qla_host *ha = to_qla_host(cmd->device->host); + struct ddb_entry *ddb_entry = cmd->device->hostdata; + struct srb *srb; + int rval; + + if (atomic_read(&ddb_entry->state) != DDB_STATE_ONLINE) { + if (atomic_read(&ddb_entry->state) == DDB_STATE_DEAD) { + cmd->result = DID_NO_CONNECT << 16; + goto qc_fail_command; + } + goto qc_host_busy; + } + + spin_unlock_irq(ha->host->host_lock); + + srb = qla4xxx_get_new_srb(ha, ddb_entry, cmd, done); + if (!srb) + goto qc_host_busy_lock; + + rval = qla4xxx_send_command_to_isp(ha, srb); + if (rval != QLA_SUCCESS) + goto qc_host_busy_free_sp; + + spin_lock_irq(ha->host->host_lock); + return 0; + +qc_host_busy_free_sp: + qla4xxx_srb_free_dma(ha, srb); + mempool_free(srb, ha->srb_mempool); + +qc_host_busy_lock: + spin_lock_irq(ha->host->host_lock); + +qc_host_busy: + return SCSI_MLQUEUE_HOST_BUSY; + +qc_fail_command: + done(cmd); + + return 0; +} + +/** + * qla4xxx_mem_free - frees memory allocated to adapter + * @ha: Pointer to host adapter structure. + * + * Frees memory previously allocated by qla4xxx_mem_alloc + **/ +static void qla4xxx_mem_free(struct scsi_qla_host *ha) +{ + if (ha->queues) + dma_free_coherent(&ha->pdev->dev, ha->queues_len, ha->queues, + ha->queues_dma); + + ha->queues_len = 0; + ha->queues = NULL; + ha->queues_dma = 0; + ha->request_ring = NULL; + ha->request_dma = 0; + ha->response_ring = NULL; + ha->response_dma = 0; + ha->shadow_regs = NULL; + ha->shadow_regs_dma = 0; + + /* Free srb pool. */ + if (ha->srb_mempool) + mempool_destroy(ha->srb_mempool); + + ha->srb_mempool = NULL; + + /* release io space registers */ + if (ha->reg) + iounmap(ha->reg); + pci_release_regions(ha->pdev); +} + +/** + * qla4xxx_mem_alloc - allocates memory for use by adapter. + * @ha: Pointer to host adapter structure + * + * Allocates DMA memory for request and response queues. Also allocates memory + * for srbs. + **/ +static int qla4xxx_mem_alloc(struct scsi_qla_host *ha) +{ + unsigned long align; + + /* Allocate contiguous block of DMA memory for queues. */ + ha->queues_len = ((REQUEST_QUEUE_DEPTH * QUEUE_SIZE) + + (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE) + + sizeof(struct shadow_regs) + + MEM_ALIGN_VALUE + + (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1); + ha->queues = dma_alloc_coherent(&ha->pdev->dev, ha->queues_len, + &ha->queues_dma, GFP_KERNEL); + if (ha->queues == NULL) { + dev_warn(&ha->pdev->dev, + "Memory Allocation failed - queues.\n"); + + goto mem_alloc_error_exit; + } + memset(ha->queues, 0, ha->queues_len); + + /* + * As per RISC alignment requirements -- the bus-address must be a + * multiple of the request-ring size (in bytes). + */ + align = 0; + if ((unsigned long)ha->queues_dma & (MEM_ALIGN_VALUE - 1)) + align = MEM_ALIGN_VALUE - ((unsigned long)ha->queues_dma & + (MEM_ALIGN_VALUE - 1)); + + /* Update request and response queue pointers. */ + ha->request_dma = ha->queues_dma + align; + ha->request_ring = (struct queue_entry *) (ha->queues + align); + ha->response_dma = ha->queues_dma + align + + (REQUEST_QUEUE_DEPTH * QUEUE_SIZE); + ha->response_ring = (struct queue_entry *) (ha->queues + align + + (REQUEST_QUEUE_DEPTH * + QUEUE_SIZE)); + ha->shadow_regs_dma = ha->queues_dma + align + + (REQUEST_QUEUE_DEPTH * QUEUE_SIZE) + + (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE); + ha->shadow_regs = (struct shadow_regs *) (ha->queues + align + + (REQUEST_QUEUE_DEPTH * + QUEUE_SIZE) + + (RESPONSE_QUEUE_DEPTH * + QUEUE_SIZE)); + + /* Allocate memory for srb pool. */ + ha->srb_mempool = mempool_create(SRB_MIN_REQ, mempool_alloc_slab, + mempool_free_slab, srb_cachep); + if (ha->srb_mempool == NULL) { + dev_warn(&ha->pdev->dev, + "Memory Allocation failed - SRB Pool.\n"); + + goto mem_alloc_error_exit; + } + + return QLA_SUCCESS; + +mem_alloc_error_exit: + qla4xxx_mem_free(ha); + return QLA_ERROR; +} + +/** + * qla4xxx_timer - checks every second for work to do. + * @ha: Pointer to host adapter structure. + **/ +static void qla4xxx_timer(struct scsi_qla_host *ha) +{ + struct ddb_entry *ddb_entry, *dtemp; + int start_dpc = 0; + + /* Search for relogin's to time-out and port down retry. */ + list_for_each_entry_safe(ddb_entry, dtemp, &ha->ddb_list, list) { + /* Count down time between sending relogins */ + if (adapter_up(ha) && + !test_bit(DF_RELOGIN, &ddb_entry->flags) && + atomic_read(&ddb_entry->state) != DDB_STATE_ONLINE) { + if (atomic_read(&ddb_entry->retry_relogin_timer) != + INVALID_ENTRY) { + if (atomic_read(&ddb_entry->retry_relogin_timer) + == 0) { + atomic_set(&ddb_entry-> + retry_relogin_timer, + INVALID_ENTRY); + set_bit(DPC_RELOGIN_DEVICE, + &ha->dpc_flags); + set_bit(DF_RELOGIN, &ddb_entry->flags); + DEBUG2(printk("scsi%ld: %s: index [%d]" + " login device\n", + ha->host_no, __func__, + ddb_entry->fw_ddb_index)); + } else + atomic_dec(&ddb_entry-> + retry_relogin_timer); + } + } + + /* Wait for relogin to timeout */ + if (atomic_read(&ddb_entry->relogin_timer) && + (atomic_dec_and_test(&ddb_entry->relogin_timer) != 0)) { + /* + * If the relogin times out and the device is + * still NOT ONLINE then try and relogin again. + */ + if (atomic_read(&ddb_entry->state) != + DDB_STATE_ONLINE && + ddb_entry->fw_ddb_device_state == + DDB_DS_SESSION_FAILED) { + /* Reset retry relogin timer */ + atomic_inc(&ddb_entry->relogin_retry_count); + DEBUG2(printk("scsi%ld: index[%d] relogin" + " timed out-retrying" + " relogin (%d)\n", + ha->host_no, + ddb_entry->fw_ddb_index, + atomic_read(&ddb_entry-> + relogin_retry_count)) + ); + start_dpc++; + DEBUG(printk("scsi%ld:%d:%d: index [%d] " + "initate relogin after" + " %d seconds\n", + ha->host_no, ddb_entry->bus, + ddb_entry->target, + ddb_entry->fw_ddb_index, + ddb_entry->default_time2wait + 4) + ); + + atomic_set(&ddb_entry->retry_relogin_timer, + ddb_entry->default_time2wait + 4); + } + } + } + + /* Check for heartbeat interval. */ + if (ha->firmware_options & FWOPT_HEARTBEAT_ENABLE && + ha->heartbeat_interval != 0) { + ha->seconds_since_last_heartbeat++; + if (ha->seconds_since_last_heartbeat > + ha->heartbeat_interval + 2) + set_bit(DPC_RESET_HA, &ha->dpc_flags); + } + + + /* Wakeup the dpc routine for this adapter, if needed. */ + if ((start_dpc || + test_bit(DPC_RESET_HA, &ha->dpc_flags) || + test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags) || + test_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags) || + test_bit(DPC_RESET_HA_DESTROY_DDB_LIST, &ha->dpc_flags) || + test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || + test_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags) || + test_bit(DPC_AEN, &ha->dpc_flags)) && + ha->dpc_thread) { + DEBUG2(printk("scsi%ld: %s: scheduling dpc routine" + " - dpc flags = 0x%lx\n", + ha->host_no, __func__, ha->dpc_flags)); + queue_work(ha->dpc_thread, &ha->dpc_work); + } + + /* Reschedule timer thread to call us back in one second */ + mod_timer(&ha->timer, jiffies + HZ); + + DEBUG2(ha->seconds_since_last_intr++); +} + +/** + * qla4xxx_cmd_wait - waits for all outstanding commands to complete + * @ha: Pointer to host adapter structure. + * + * This routine stalls the driver until all outstanding commands are returned. + * Caller must release the Hardware Lock prior to calling this routine. + **/ +static int qla4xxx_cmd_wait(struct scsi_qla_host *ha) +{ + uint32_t index = 0; + int stat = QLA_SUCCESS; + unsigned long flags; + int wait_cnt = WAIT_CMD_TOV; /* + * Initialized for 30 seconds as we + * expect all commands to retuned + * ASAP. + */ + + while (wait_cnt) { + spin_lock_irqsave(&ha->hardware_lock, flags); + /* Find a command that hasn't completed. */ + for (index = 1; index < MAX_SRBS; index++) { + if (ha->active_srb_array[index] != NULL) + break; + } + spin_unlock_irqrestore(&ha->hardware_lock, flags); + + /* If No Commands are pending, wait is complete */ + if (index == MAX_SRBS) { + break; + } + + /* If we timed out on waiting for commands to come back + * return ERROR. + */ + wait_cnt--; + if (wait_cnt == 0) + stat = QLA_ERROR; + else { + msleep(1000); + } + } /* End of While (wait_cnt) */ + + return stat; +} + +/** + * qla4010_soft_reset - performs soft reset. + * @ha: Pointer to host adapter structure. + **/ +static int qla4010_soft_reset(struct scsi_qla_host *ha) +{ + uint32_t max_wait_time; + unsigned long flags = 0; + int status = QLA_ERROR; + uint32_t ctrl_status; + + spin_lock_irqsave(&ha->hardware_lock, flags); + + /* + * If the SCSI Reset Interrupt bit is set, clear it. + * Otherwise, the Soft Reset won't work. + */ + ctrl_status = readw(&ha->reg->ctrl_status); + if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) + writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status); + + /* Issue Soft Reset */ + writel(set_rmask(CSR_SOFT_RESET), &ha->reg->ctrl_status); + readl(&ha->reg->ctrl_status); + + spin_unlock_irqrestore(&ha->hardware_lock, flags); + + /* Wait until the Network Reset Intr bit is cleared */ + max_wait_time = RESET_INTR_TOV; + do { + spin_lock_irqsave(&ha->hardware_lock, flags); + ctrl_status = readw(&ha->reg->ctrl_status); + spin_unlock_irqrestore(&ha->hardware_lock, flags); + + if ((ctrl_status & CSR_NET_RESET_INTR) == 0) + break; + + msleep(1000); + } while ((--max_wait_time)); + + if ((ctrl_status & CSR_NET_RESET_INTR) != 0) { + DEBUG2(printk(KERN_WARNING + "scsi%ld: Network Reset Intr not cleared by " + "Network function, clearing it now!\n", + ha->host_no)); + spin_lock_irqsave(&ha->hardware_lock, flags); + writel(set_rmask(CSR_NET_RESET_INTR), &ha->reg->ctrl_status); + readl(&ha->reg->ctrl_status); + spin_unlock_irqrestore(&ha->hardware_lock, flags); + } + + /* Wait until the firmware tells us the Soft Reset is done */ + max_wait_time = SOFT_RESET_TOV; + do { + spin_lock_irqsave(&ha->hardware_lock, flags); + ctrl_status = readw(&ha->reg->ctrl_status); + spin_unlock_irqrestore(&ha->hardware_lock, flags); + + if ((ctrl_status & CSR_SOFT_RESET) == 0) { + status = QLA_SUCCESS; + break; + } + + msleep(1000); + } while ((--max_wait_time)); + + /* + * Also, make sure that the SCSI Reset Interrupt bit has been cleared + * after the soft reset has taken place. + */ + spin_lock_irqsave(&ha->hardware_lock, flags); + ctrl_status = readw(&ha->reg->ctrl_status); + if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) { + writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status); + readl(&ha->reg->ctrl_status); + } + spin_unlock_irqrestore(&ha->hardware_lock, flags); + + /* If soft reset fails then most probably the bios on other + * function is also enabled. + * Since the initialization is sequential the other fn + * wont be able to acknowledge the soft reset. + * Issue a force soft reset to workaround this scenario. + */ + if (max_wait_time == 0) { + /* Issue Force Soft Reset */ + spin_lock_irqsave(&ha->hardware_lock, flags); + writel(set_rmask(CSR_FORCE_SOFT_RESET), &ha->reg->ctrl_status); + readl(&ha->reg->ctrl_status); + spin_unlock_irqrestore(&ha->hardware_lock, flags); + /* Wait until the firmware tells us the Soft Reset is done */ + max_wait_time = SOFT_RESET_TOV; + do { + spin_lock_irqsave(&ha->hardware_lock, flags); + ctrl_status = readw(&ha->reg->ctrl_status); + spin_unlock_irqrestore(&ha->hardware_lock, flags); + + if ((ctrl_status & CSR_FORCE_SOFT_RESET) == 0) { + status = QLA_SUCCESS; + break; + } + + msleep(1000); + } while ((--max_wait_time)); + } + + return status; +} + +/** + * qla4xxx_topcat_reset - performs hard reset of TopCat Chip. + * @ha: Pointer to host adapter structure. + **/ +static int qla4xxx_topcat_reset(struct scsi_qla_host *ha) +{ + unsigned long flags; + + ql4xxx_lock_nvram(ha); + spin_lock_irqsave(&ha->hardware_lock, flags); + writel(set_rmask(GPOR_TOPCAT_RESET), isp_gp_out(ha)); + readl(isp_gp_out(ha)); + mdelay(1); + + writel(clr_rmask(GPOR_TOPCAT_RESET), isp_gp_out(ha)); + readl(isp_gp_out(ha)); + spin_unlock_irqrestore(&ha->hardware_lock, flags); + mdelay(2523); + + ql4xxx_unlock_nvram(ha); + return QLA_SUCCESS; +} + +/** + * qla4xxx_flush_active_srbs - returns all outstanding i/o requests to O.S. + * @ha: Pointer to host adapter structure. + * + * This routine is called just prior to a HARD RESET to return all + * outstanding commands back to the Operating System. + * Caller should make sure that the following locks are released + * before this calling routine: Hardware lock, and io_request_lock. + **/ +static void qla4xxx_flush_active_srbs(struct scsi_qla_host *ha) +{ + struct srb *srb; + int i; + unsigned long flags; + + spin_lock_irqsave(&ha->hardware_lock, flags); + for (i = 1; i < MAX_SRBS; i++) { + if ((srb = ha->active_srb_array[i]) != NULL) { + qla4xxx_del_from_active_array(ha, i); + srb->cmd->result = DID_RESET << 16; + qla4xxx_srb_compl(ha, srb); + } + } + spin_unlock_irqrestore(&ha->hardware_lock, flags); + +} + +/** + * qla4xxx_hard_reset - performs HBA Hard Reset + * @ha: Pointer to host adapter structure. + **/ +static int qla4xxx_hard_reset(struct scsi_qla_host *ha) +{ + /* The QLA4010 really doesn't have an equivalent to a hard reset */ + qla4xxx_flush_active_srbs(ha); + if (test_bit(AF_TOPCAT_CHIP_PRESENT, &ha->flags)) { + int status = QLA_ERROR; + + if ((qla4010_soft_reset(ha) == QLA_SUCCESS) && + (qla4xxx_topcat_reset(ha) == QLA_SUCCESS) && + (qla4010_soft_reset(ha) == QLA_SUCCESS)) + status = QLA_SUCCESS; + return status; + } else + return qla4010_soft_reset(ha); +} + +/** + * qla4xxx_recover_adapter - recovers adapter after a fatal error + * @ha: Pointer to host adapter structure. + * @renew_ddb_list: Indicates what to do with the adapter's ddb list + * after adapter recovery has completed. + * 0=preserve ddb list, 1=destroy and rebuild ddb list + **/ +static int qla4xxx_recover_adapter(struct scsi_qla_host *ha, + uint8_t renew_ddb_list) +{ + int status; + + /* Stall incoming I/O until we are done */ + clear_bit(AF_ONLINE, &ha->flags); + DEBUG2(printk("scsi%ld: %s calling qla4xxx_cmd_wait\n", ha->host_no, + __func__)); + + /* Wait for outstanding commands to complete. + * Stalls the driver for max 30 secs + */ + status = qla4xxx_cmd_wait(ha); + + qla4xxx_disable_intrs(ha); + + /* Flush any pending ddb changed AENs */ + qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); + + /* Reset the firmware. If successful, function + * returns with ISP interrupts enabled. + */ + if (status == QLA_SUCCESS) { + DEBUG2(printk("scsi%ld: %s - Performing soft reset..\n", + ha->host_no, __func__)); + status = qla4xxx_soft_reset(ha); + } + /* FIXMEkaren: Do we want to keep interrupts enabled and process + AENs after soft reset */ + + /* If firmware (SOFT) reset failed, or if all outstanding + * commands have not returned, then do a HARD reset. + */ + if (status == QLA_ERROR) { + DEBUG2(printk("scsi%ld: %s - Performing hard reset..\n", + ha->host_no, __func__)); + status = qla4xxx_hard_reset(ha); + } + + /* Flush any pending ddb changed AENs */ + qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); + + /* Re-initialize firmware. If successful, function returns + * with ISP interrupts enabled */ + if (status == QLA_SUCCESS) { + DEBUG2(printk("scsi%ld: %s - Initializing adapter..\n", + ha->host_no, __func__)); + + /* If successful, AF_ONLINE flag set in + * qla4xxx_initialize_adapter */ + status = qla4xxx_initialize_adapter(ha, renew_ddb_list); + } + + /* Failed adapter initialization? + * Retry reset_ha only if invoked via DPC (DPC_RESET_HA) */ + if ((test_bit(AF_ONLINE, &ha->flags) == 0) && + (test_bit(DPC_RESET_HA, &ha->dpc_flags))) { + /* Adapter initialization failed, see if we can retry + * resetting the ha */ + if (!test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags)) { + ha->retry_reset_ha_cnt = MAX_RESET_HA_RETRIES; + DEBUG2(printk("scsi%ld: recover adapter - retrying " + "(%d) more times\n", ha->host_no, + ha->retry_reset_ha_cnt)); + set_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); + status = QLA_ERROR; + } else { + if (ha->retry_reset_ha_cnt > 0) { + /* Schedule another Reset HA--DPC will retry */ + ha->retry_reset_ha_cnt--; + DEBUG2(printk("scsi%ld: recover adapter - " + "retry remaining %d\n", + ha->host_no, + ha->retry_reset_ha_cnt)); + status = QLA_ERROR; + } + + if (ha->retry_reset_ha_cnt == 0) { + /* Recover adapter retries have been exhausted. + * Adapter DEAD */ + DEBUG2(printk("scsi%ld: recover adapter " + "failed - board disabled\n", + ha->host_no)); + qla4xxx_flush_active_srbs(ha); + clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); + clear_bit(DPC_RESET_HA, &ha->dpc_flags); + clear_bit(DPC_RESET_HA_DESTROY_DDB_LIST, + &ha->dpc_flags); + status = QLA_ERROR; + } + } + } else { + clear_bit(DPC_RESET_HA, &ha->dpc_flags); + clear_bit(DPC_RESET_HA_DESTROY_DDB_LIST, &ha->dpc_flags); + clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); + } + + ha->adapter_error_count++; + + if (status == QLA_SUCCESS) + qla4xxx_enable_intrs(ha); + + DEBUG2(printk("scsi%ld: recover adapter .. DONE\n", ha->host_no)); + return status; +} + +/** + * qla4xxx_do_dpc - dpc routine + * @data: in our case pointer to adapter structure + * + * This routine is a task that is schedule by the interrupt handler + * to perform the background processing for interrupts. We put it + * on a task queue that is consumed whenever the scheduler runs; that's + * so you can do anything (i.e. put the process to sleep etc). In fact, + * the mid-level tries to sleep when it reaches the driver threshold + * "host->can_queue". This can cause a panic if we were in our interrupt code. + **/ +static void qla4xxx_do_dpc(void *data) +{ + struct scsi_qla_host *ha = (struct scsi_qla_host *) data; + struct ddb_entry *ddb_entry, *dtemp; + + DEBUG2(printk("scsi%ld: %s: DPC handler waking up.\n", + ha->host_no, __func__)); + + DEBUG2(printk("scsi%ld: %s: ha->flags = 0x%08lx\n", + ha->host_no, __func__, ha->flags)); + DEBUG2(printk("scsi%ld: %s: ha->dpc_flags = 0x%08lx\n", + ha->host_no, __func__, ha->dpc_flags)); + + /* Initialization not yet finished. Don't do anything yet. */ + if (!test_bit(AF_INIT_DONE, &ha->flags)) + return; + + if (adapter_up(ha) || + test_bit(DPC_RESET_HA, &ha->dpc_flags) || + test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || + test_bit(DPC_RESET_HA_DESTROY_DDB_LIST, &ha->dpc_flags)) { + if (test_bit(DPC_RESET_HA_DESTROY_DDB_LIST, &ha->dpc_flags)) + /* + * dg 09/23 Never initialize ddb list + * once we up and running + * qla4xxx_recover_adapter(ha, + * REBUILD_DDB_LIST); + */ + qla4xxx_recover_adapter(ha, PRESERVE_DDB_LIST); + + if (test_bit(DPC_RESET_HA, &ha->dpc_flags)) + qla4xxx_recover_adapter(ha, PRESERVE_DDB_LIST); + + if (test_and_clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { + uint8_t wait_time = RESET_INTR_TOV; + unsigned long flags = 0; + + qla4xxx_flush_active_srbs(ha); + + spin_lock_irqsave(&ha->hardware_lock, flags); + while ((readw(&ha->reg->ctrl_status) & + (CSR_SOFT_RESET | CSR_FORCE_SOFT_RESET)) != 0) { + if (--wait_time == 0) + break; + + spin_unlock_irqrestore(&ha->hardware_lock, + flags); + + msleep(1000); + + spin_lock_irqsave(&ha->hardware_lock, flags); + } + spin_unlock_irqrestore(&ha->hardware_lock, flags); + + if (wait_time == 0) + DEBUG2(printk("scsi%ld: %s: SR|FSR " + "bit not cleared-- resetting\n", + ha->host_no, __func__)); + } + } + + /* ---- process AEN? --- */ + if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags)) + qla4xxx_process_aen(ha, PROCESS_ALL_AENS); + + /* ---- Get DHCP IP Address? --- */ + if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags)) + qla4xxx_get_dhcp_ip_address(ha); + + /* ---- relogin device? --- */ + if (adapter_up(ha) && + test_and_clear_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags)) { + list_for_each_entry_safe(ddb_entry, dtemp, + &ha->ddb_list, list) { + if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags) && + atomic_read(&ddb_entry->state) != DDB_STATE_ONLINE) + qla4xxx_relogin_device(ha, ddb_entry); + + /* + * If mbx cmd times out there is no point + * in continuing further. + * With large no of targets this can hang + * the system. + */ + if (test_bit(DPC_RESET_HA, &ha->dpc_flags)) { + printk(KERN_WARNING "scsi%ld: %s: " + "need to reset hba\n", + ha->host_no, __func__); + break; + } + } + } +} + +/** + * qla4xxx_free_adapter - release the adapter + * @ha: pointer to adapter structure + **/ +static void qla4xxx_free_adapter(struct scsi_qla_host *ha) +{ + + if (test_bit(AF_INTERRUPTS_ON, &ha->flags)) { + /* Turn-off interrupts on the card. */ + qla4xxx_disable_intrs(ha); + } + + /* Kill the kernel thread for this host */ + if (ha->dpc_thread) + destroy_workqueue(ha->dpc_thread); + + /* Issue Soft Reset to put firmware in unknown state */ + qla4xxx_soft_reset(ha); + + /* Remove timer thread, if present */ + if (ha->timer_active) + qla4xxx_stop_timer(ha); + + /* free extra memory */ + qla4xxx_mem_free(ha); + + /* Detach interrupts */ + if (test_and_clear_bit(AF_IRQ_ATTACHED, &ha->flags)) + free_irq(ha->pdev->irq, ha); + + pci_disable_device(ha->pdev); + +} + +/*** + * qla4xxx_iospace_config - maps registers + * @ha: pointer to adapter structure + * + * This routines maps HBA's registers from the pci address space + * into the kernel virtual address space for memory mapped i/o. + **/ +static int qla4xxx_iospace_config(struct scsi_qla_host *ha) +{ + unsigned long pio, pio_len, pio_flags; + unsigned long mmio, mmio_len, mmio_flags; + + pio = pci_resource_start(ha->pdev, 0); + pio_len = pci_resource_len(ha->pdev, 0); + pio_flags = pci_resource_flags(ha->pdev, 0); + if (pio_flags & IORESOURCE_IO) { + if (pio_len < MIN_IOBASE_LEN) { + dev_warn(&ha->pdev->dev, + "Invalid PCI I/O region size\n"); + pio = 0; + } + } else { + dev_warn(&ha->pdev->dev, "region #0 not a PIO resource\n"); + pio = 0; + } + + /* Use MMIO operations for all accesses. */ + mmio = pci_resource_start(ha->pdev, 1); + mmio_len = pci_resource_len(ha->pdev, 1); + mmio_flags = pci_resource_flags(ha->pdev, 1); + + if (!(mmio_flags & IORESOURCE_MEM)) { + dev_err(&ha->pdev->dev, + "region #0 not an MMIO resource, aborting\n"); + + goto iospace_error_exit; + } + if (mmio_len < MIN_IOBASE_LEN) { + dev_err(&ha->pdev->dev, + "Invalid PCI mem region size, aborting\n"); + goto iospace_error_exit; + } + + if (pci_request_regions(ha->pdev, DRIVER_NAME)) { + dev_warn(&ha->pdev->dev, + "Failed to reserve PIO/MMIO regions\n"); + + goto iospace_error_exit; + } + + ha->pio_address = pio; + ha->pio_length = pio_len; + ha->reg = ioremap(mmio, MIN_IOBASE_LEN); + if (!ha->reg) { + dev_err(&ha->pdev->dev, + "cannot remap MMIO, aborting\n"); + + goto iospace_error_exit; + } + + return 0; + +iospace_error_exit: + return -ENOMEM; +} + +/** + * qla4xxx_probe_adapter - callback function to probe HBA + * @pdev: pointer to pci_dev structure + * @pci_device_id: pointer to pci_device entry + * + * This routine will probe for Qlogic 4xxx iSCSI host adapters. + * It returns zero if successful. It also initializes all data necessary for + * the driver. + **/ +static int __devinit qla4xxx_probe_adapter(struct pci_dev *pdev, + const struct pci_device_id *ent) +{ + int ret = -ENODEV, status; + struct Scsi_Host *host; + struct scsi_qla_host *ha; + struct ddb_entry *ddb_entry, *ddbtemp; + uint8_t init_retry_count = 0; + char buf[34]; + + if (pci_enable_device(pdev)) + return -1; + + host = scsi_host_alloc(&qla4xxx_driver_template, sizeof(*ha)); + if (host == NULL) { + printk(KERN_WARNING + "qla4xxx: Couldn't allocate host from scsi layer!\n"); + goto probe_disable_device; + } + + /* Clear our data area */ + ha = (struct scsi_qla_host *) host->hostdata; + memset(ha, 0, sizeof(*ha)); + + /* Save the information from PCI BIOS. */ + ha->pdev = pdev; + ha->host = host; + ha->host_no = host->host_no; + + /* Configure PCI I/O space. */ + ret = qla4xxx_iospace_config(ha); + if (ret) + goto probe_failed; + + dev_info(&ha->pdev->dev, "Found an ISP%04x, irq %d, iobase 0x%p\n", + pdev->device, pdev->irq, ha->reg); + + qla4xxx_config_dma_addressing(ha); + + /* Initialize lists and spinlocks. */ + INIT_LIST_HEAD(&ha->ddb_list); + INIT_LIST_HEAD(&ha->free_srb_q); + + mutex_init(&ha->mbox_sem); + init_waitqueue_head(&ha->mailbox_wait_queue); + + spin_lock_init(&ha->hardware_lock); + spin_lock_init(&ha->list_lock); + + /* Allocate dma buffers */ + if (qla4xxx_mem_alloc(ha)) { + dev_warn(&ha->pdev->dev, + "[ERROR] Failed to allocate memory for adapter\n"); + + ret = -ENOMEM; + goto probe_failed; + } + + /* + * Initialize the Host adapter request/response queues and + * firmware + * NOTE: interrupts enabled upon successful completion + */ + status = qla4xxx_initialize_adapter(ha, REBUILD_DDB_LIST); + while (status == QLA_ERROR && init_retry_count++ < MAX_INIT_RETRIES) { + DEBUG2(printk("scsi: %s: retrying adapter initialization " + "(%d)\n", __func__, init_retry_count)); + qla4xxx_soft_reset(ha); + status = qla4xxx_initialize_adapter(ha, REBUILD_DDB_LIST); + } + if (status == QLA_ERROR) { + dev_warn(&ha->pdev->dev, "Failed to initialize adapter\n"); + + ret = -ENODEV; + goto probe_failed; + } + + host->cmd_per_lun = 3; + host->max_channel = 0; + host->max_lun = MAX_LUNS - 1; + host->max_id = MAX_TARGETS; + host->max_cmd_len = IOCB_MAX_CDB_LEN; + host->can_queue = REQUEST_QUEUE_DEPTH + 128; + host->transportt = qla4xxx_scsi_transport; + + /* Startup the kernel thread for this host adapter. */ + DEBUG2(printk("scsi: %s: Starting kernel thread for " + "qla4xxx_dpc\n", __func__)); + sprintf(buf, "qla4xxx_%lu_dpc", ha->host_no); + ha->dpc_thread = create_singlethread_workqueue(buf); + if (!ha->dpc_thread) { + dev_warn(&ha->pdev->dev, "Unable to start DPC thread!\n"); + ret = -ENODEV; + goto probe_failed; + } + INIT_WORK(&ha->dpc_work, qla4xxx_do_dpc, ha); + + ret = request_irq(pdev->irq, qla4xxx_intr_handler, + SA_INTERRUPT|SA_SHIRQ, "qla4xxx", ha); + if (ret) { + dev_warn(&ha->pdev->dev, "Failed to reserve interrupt %d" + " already in use.\n", pdev->irq); + goto probe_failed; + } + set_bit(AF_IRQ_ATTACHED, &ha->flags); + host->irq = pdev->irq; + DEBUG(printk("scsi%d: irq %d attached\n", ha->host_no, ha->pdev->irq)); + + qla4xxx_enable_intrs(ha); + + /* Start timer thread. */ + qla4xxx_start_timer(ha, qla4xxx_timer, 1); + + set_bit(AF_INIT_DONE, &ha->flags); + + pci_set_drvdata(pdev, ha); + + ret = scsi_add_host(host, &pdev->dev); + if (ret) + goto probe_failed; + + /* Update transport device information for all devices. */ + list_for_each_entry_safe(ddb_entry, ddbtemp, &ha->ddb_list, list) { + if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) + if (qla4xxx_add_sess(ddb_entry, 1)) + goto remove_host; + } + + printk(KERN_INFO + " QLogic iSCSI HBA Driver version: %s\n" + " QLogic ISP%04x @ %s, host#=%ld, fw=%02d.%02d.%02d.%02d\n", + qla4xxx_version_str, ha->pdev->device, pci_name(ha->pdev), + ha->host_no, ha->firmware_version[0], ha->firmware_version[1], + ha->patch_number, ha->build_number); + + return 0; + +remove_host: + qla4xxx_free_ddb_list(ha); + scsi_remove_host(host); + +probe_failed: + qla4xxx_free_adapter(ha); + scsi_host_put(ha->host); + +probe_disable_device: + pci_disable_device(pdev); + + return ret; +} + +/** + * qla4xxx_remove_adapter - calback function to remove adapter. + * @pci_dev: PCI device pointer + **/ +static void __devexit qla4xxx_remove_adapter(struct pci_dev *pdev) +{ + struct scsi_qla_host *ha; + + ha = pci_get_drvdata(pdev); + + /* remove devs from iscsi_sessions to scsi_devices */ + qla4xxx_free_ddb_list(ha); + + scsi_remove_host(ha->host); + + qla4xxx_free_adapter(ha); + + scsi_host_put(ha->host); + + pci_set_drvdata(pdev, NULL); +} + +/** + * qla4xxx_config_dma_addressing() - Configure OS DMA addressing method. + * @ha: HA context + * + * At exit, the @ha's flags.enable_64bit_addressing set to indicated + * supported addressing method. + */ +void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha) +{ + int retval; + + /* Update our PCI device dma_mask for full 64 bit mask */ + if (pci_set_dma_mask(ha->pdev, DMA_64BIT_MASK) == 0) { + if (pci_set_consistent_dma_mask(ha->pdev, DMA_64BIT_MASK)) { + dev_dbg(&ha->pdev->dev, + "Failed to set 64 bit PCI consistent mask; " + "using 32 bit.\n"); + retval = pci_set_consistent_dma_mask(ha->pdev, + DMA_32BIT_MASK); + } + } else + retval = pci_set_dma_mask(ha->pdev, DMA_32BIT_MASK); +} + +static int qla4xxx_slave_alloc(struct scsi_device *sdev) +{ + struct iscsi_cls_session *sess = starget_to_session(sdev->sdev_target); + struct ddb_entry *ddb = sess->dd_data; + + sdev->hostdata = ddb; + return 0; +} + +static int qla4xxx_slave_configure(struct scsi_device *sdev) +{ + if (sdev->tagged_supported) + scsi_activate_tcq(sdev, 32); + else + scsi_deactivate_tcq(sdev, 32); + + return 0; +} + +/** + * qla4xxx_del_from_active_array - returns an active srb + * @ha: Pointer to host adapter structure. + * @index: index into to the active_array + * + * This routine removes and returns the srb at the specified index + **/ +struct srb * qla4xxx_del_from_active_array(struct scsi_qla_host *ha, uint32_t index) +{ + struct srb *srb = NULL; + + /* validate handle and remove from active array */ + if (index >= MAX_SRBS) + return srb; + + srb = ha->active_srb_array[index]; + ha->active_srb_array[index] = NULL; + if (!srb) + return srb; + + /* update counters */ + if (srb->flags & SRB_DMA_VALID) { + ha->req_q_count += srb->iocb_cnt; + ha->iocb_cnt -= srb->iocb_cnt; + if (srb->cmd) + srb->cmd->host_scribble = NULL; + } + return srb; +} + +/** + * qla4xxx_soft_reset - performs a SOFT RESET of hba. + * @ha: Pointer to host adapter structure. + **/ +int qla4xxx_soft_reset(struct scsi_qla_host *ha) +{ + + DEBUG2(printk(KERN_WARNING "scsi%ld: %s: chip reset!\n", ha->host_no, + __func__)); + if (test_bit(AF_TOPCAT_CHIP_PRESENT, &ha->flags)) { + int status = QLA_ERROR; + + if ((qla4010_soft_reset(ha) == QLA_SUCCESS) && + (qla4xxx_topcat_reset(ha) == QLA_SUCCESS) && + (qla4010_soft_reset(ha) == QLA_SUCCESS) ) + status = QLA_SUCCESS; + return status; + } else + return qla4010_soft_reset(ha); +} + +/** + * qla4xxx_eh_wait_on_command - waits for command to be returned by firmware + * @ha: actual ha whose done queue will contain the comd returned by firmware. + * @cmd: Scsi Command to wait on. + * + * This routine waits for the command to be returned by the Firmware + * for some max time. + **/ +static int qla4xxx_eh_wait_on_command(struct scsi_qla_host *ha, + struct scsi_cmnd *cmd) +{ + int done = 0; + struct srb *rp; + uint32_t max_wait_time = EH_WAIT_CMD_TOV; + + do { + /* Checking to see if its returned to OS */ + rp = (struct srb *) cmd->SCp.ptr; + if (rp == NULL) { + done++; + break; + } + + msleep(2000); + } while (max_wait_time--); + + return done; +} + +/** + * qla4xxx_wait_for_hba_online - waits for HBA to come online + * @ha: Pointer to host adapter structure + **/ +static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha) +{ + unsigned long wait_online; + + wait_online = jiffies + (30 * HZ); + while (time_before(jiffies, wait_online)) { + + if (adapter_up(ha)) + return QLA_SUCCESS; + else if (ha->retry_reset_ha_cnt == 0) + return QLA_ERROR; + + msleep(2000); + } + + return QLA_ERROR; +} + +/** + * qla4xxx_eh_wait_for_active_target_commands - wait for active cmds to finish. + * @ha: pointer to to HBA + * @t: target id + * @l: lun id + * + * This function waits for all outstanding commands to a lun to complete. It + * returns 0 if all pending commands are returned and 1 otherwise. + **/ +static int qla4xxx_eh_wait_for_active_target_commands(struct scsi_qla_host *ha, + int t, int l) +{ + int cnt; + int status; + struct srb *sp; + struct scsi_cmnd *cmd; + + /* + * Waiting for all commands for the designated target in the active + * array + */ + status = 0; + for (cnt = 1; cnt < MAX_SRBS; cnt++) { + spin_lock(&ha->hardware_lock); + sp = ha->active_srb_array[cnt]; + if (sp) { + cmd = sp->cmd; + spin_unlock(&ha->hardware_lock); + if (cmd->device->id == t && cmd->device->lun == l) { + if (!qla4xxx_eh_wait_on_command(ha, cmd)) { + status++; + break; + } + } + } else { + spin_unlock(&ha->hardware_lock); + } + } + return status; +} + +/** + * qla4xxx_eh_device_reset - callback for target reset. + * @cmd: Pointer to Linux's SCSI command structure + * + * This routine is called by the Linux OS to reset all luns on the + * specified target. + **/ +static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd) +{ + struct scsi_qla_host *ha = to_qla_host(cmd->device->host); + struct ddb_entry *ddb_entry = cmd->device->hostdata; + struct srb *sp; + int ret = FAILED, stat; + + sp = (struct srb *) cmd->SCp.ptr; + if (!sp || !ddb_entry) + return ret; + + dev_info(&ha->pdev->dev, + "scsi%ld:%d:%d:%d: DEVICE RESET ISSUED.\n", ha->host_no, + cmd->device->channel, cmd->device->id, cmd->device->lun); + + DEBUG2(printk(KERN_INFO + "scsi%ld: DEVICE_RESET cmd=%p jiffies = 0x%lx, to=%x," + "dpc_flags=%lx, status=%x allowed=%d\n", ha->host_no, + cmd, jiffies, cmd->timeout_per_command / HZ, + ha->dpc_flags, cmd->result, cmd->allowed)); + + /* FIXME: wait for hba to go online */ + stat = qla4xxx_reset_lun(ha, ddb_entry, cmd->device->lun); + if (stat != QLA_SUCCESS) { + dev_info(&ha->pdev->dev, "DEVICE RESET FAILED. %d\n", stat); + goto eh_dev_reset_done; + } + + /* Send marker. */ + ha->marker_needed = 1; + + /* + * If we are coming down the EH path, wait for all commands to complete + * for the device. + */ + if (cmd->device->host->shost_state == SHOST_RECOVERY) { + if (qla4xxx_eh_wait_for_active_target_commands(ha, + cmd->device->id, + cmd->device-> + lun)) { + dev_info(&ha->pdev->dev, + "DEVICE RESET FAILED - waiting for " + "commands.\n"); + goto eh_dev_reset_done; + } + } + + dev_info(&ha->pdev->dev, + "scsi(%ld:%d:%d:%d): DEVICE RESET SUCCEEDED.\n", + ha->host_no, cmd->device->channel, cmd->device->id, + cmd->device->lun); + + ret = SUCCESS; + +eh_dev_reset_done: + + return ret; +} + +/** + * qla4xxx_eh_host_reset - kernel callback + * @cmd: Pointer to Linux's SCSI command structure + * + * This routine is invoked by the Linux kernel to perform fatal error + * recovery on the specified adapter. + **/ +static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd) +{ + int return_status = FAILED; + struct scsi_qla_host *ha; + + ha = (struct scsi_qla_host *) cmd->device->host->hostdata; + + dev_info(&ha->pdev->dev, + "scsi(%ld:%d:%d:%d): ADAPTER RESET ISSUED.\n", ha->host_no, + cmd->device->channel, cmd->device->id, cmd->device->lun); + + if (qla4xxx_wait_for_hba_online(ha) != QLA_SUCCESS) { + DEBUG2(printk("scsi%ld:%d: %s: Unable to reset host. Adapter " + "DEAD.\n", ha->host_no, cmd->device->channel, + __func__)); + + return FAILED; + } + + if (qla4xxx_recover_adapter(ha, PRESERVE_DDB_LIST) == QLA_SUCCESS) { + return_status = SUCCESS; + } + + dev_info(&ha->pdev->dev, "HOST RESET %s.\n", + return_status == FAILED ? "FAILED" : "SUCCEDED"); + + return return_status; +} + + +static struct pci_device_id qla4xxx_pci_tbl[] = { + { + .vendor = PCI_VENDOR_ID_QLOGIC, + .device = PCI_DEVICE_ID_QLOGIC_ISP4010, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + }, + { + .vendor = PCI_VENDOR_ID_QLOGIC, + .device = PCI_DEVICE_ID_QLOGIC_ISP4022, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + }, + {0, 0}, +}; +MODULE_DEVICE_TABLE(pci, qla4xxx_pci_tbl); + +struct pci_driver qla4xxx_pci_driver = { + .name = DRIVER_NAME, + .id_table = qla4xxx_pci_tbl, + .probe = qla4xxx_probe_adapter, + .remove = qla4xxx_remove_adapter, +}; + +static int __init qla4xxx_module_init(void) +{ + int ret; + + /* Allocate cache for SRBs. */ + srb_cachep = kmem_cache_create("qla4xxx_srbs", sizeof(struct srb), 0, + SLAB_HWCACHE_ALIGN, NULL, NULL); + if (srb_cachep == NULL) { + printk(KERN_ERR + "%s: Unable to allocate SRB cache..." + "Failing load!\n", DRIVER_NAME); + ret = -ENOMEM; + goto no_srp_cache; + } + + /* Derive version string. */ + strcpy(qla4xxx_version_str, QLA4XXX_DRIVER_VERSION); + if (extended_error_logging) + strcat(qla4xxx_version_str, "-debug"); + + qla4xxx_scsi_transport = + iscsi_register_transport(&qla4xxx_iscsi_transport); + if (!qla4xxx_scsi_transport){ + ret = -ENODEV; + goto release_srb_cache; + } + + printk(KERN_INFO "QLogic iSCSI HBA Driver\n"); + ret = pci_register_driver(&qla4xxx_pci_driver); + if (ret) + goto unregister_transport; + + printk(KERN_INFO "QLogic iSCSI HBA Driver\n"); + return 0; +unregister_transport: + iscsi_unregister_transport(&qla4xxx_iscsi_transport); +release_srb_cache: + kmem_cache_destroy(srb_cachep); +no_srp_cache: + return ret; +} + +static void __exit qla4xxx_module_exit(void) +{ + pci_unregister_driver(&qla4xxx_pci_driver); + iscsi_unregister_transport(&qla4xxx_iscsi_transport); + kmem_cache_destroy(srb_cachep); +} + +module_init(qla4xxx_module_init); +module_exit(qla4xxx_module_exit); + +MODULE_AUTHOR("QLogic Corporation"); +MODULE_DESCRIPTION("QLogic iSCSI HBA Driver"); +MODULE_LICENSE("GPL"); +MODULE_VERSION(QLA4XXX_DRIVER_VERSION); diff -Naurp linux-2.6.17.noarch/drivers/scsi/qla4xxx/ql4_version.h linux-2.6.17.noarch.qla4xxx/drivers/scsi/qla4xxx/ql4_version.h --- linux-2.6.17.noarch/drivers/scsi/qla4xxx/ql4_version.h 1969-12-31 19:00:00.000000000 -0500 +++ linux-2.6.17.noarch.qla4xxx/drivers/scsi/qla4xxx/ql4_version.h 2006-08-17 12:57:22.000000000 -0400 @@ -0,0 +1,13 @@ +/* + * QLogic iSCSI HBA Driver + * Copyright (c) 2003-2006 QLogic Corporation + * + * See LICENSE.qla4xxx for copyright and licensing details. + */ + +#define QLA4XXX_DRIVER_VERSION "5.00.05b9-k" + +#define QL4_DRIVER_MAJOR_VER 5 +#define QL4_DRIVER_MINOR_VER 0 +#define QL4_DRIVER_PATCH_VER 5 +#define QL4_DRIVER_BETA_VER 9
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