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Commit afaf5a2d authored by David Somayajulu's avatar David Somayajulu Committed by James Bottomley
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[SCSI] Initial Commit of qla4xxx 

open-iSCSI driver for Qlogic Corporation's iSCSI HBAs
Signed-off-by: default avatarRavi Anand <ravi.anand@qlogic.com>
Signed-off-by: default avatarDavid Somayajulu <david.somayajulu@qlogic.com>
Signed-off-by: default avatarDoug Maxey <dwm@bubba.enoyolf.org>
Signed-off-by: default avatarMike Christie <michaelc@cs.wisc.edu>
Signed-off-by: default avatarJames Bottomley <James.Bottomley@SteelEye.com>
parent ed542bed
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drivers/scsi/Kconfig
View file @ afaf5a2d
......@@ -1244,6 +1244,7 @@ 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"
......
drivers/scsi/Makefile
View file @ afaf5a2d
......@@ -84,6 +84,7 @@ obj-$(CONFIG_SCSI_QLOGIC_FAS) += qlogicfas408.o qlogicfas.o
obj-$(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
......
drivers/scsi/qla4xxx/Kconfig 0 → 100644
View file @ afaf5a2d
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.
drivers/scsi/qla4xxx/Makefile 0 → 100644
View file @ afaf5a2d
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
drivers/scsi/qla4xxx/ql4_dbg.c 0 → 100644
View file @ afaf5a2d
/*
* 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");
}
drivers/scsi/qla4xxx/ql4_dbg.h 0 → 100644
View file @ afaf5a2d
/*
* 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 /* */
drivers/scsi/qla4xxx/ql4_def.h 0 → 100644
View file @ afaf5a2d
/*
* 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;
/* 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];
/* 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 */
drivers/scsi/qla4xxx/ql4_fw.h 0 → 100644
View file @ afaf5a2d
/*
* 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 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 */
drivers/scsi/qla4xxx/ql4_glbl.h 0 → 100644
View file @ afaf5a2d
/*
* 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 *);
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);
extern int extended_error_logging;
extern int ql4xdiscoverywait;
extern int ql4xdontresethba;
#endif /* _QLA4x_GBL_H */
drivers/scsi/qla4xxx/ql4_init.c 0 → 100644
View file @ afaf5a2d
/*
* 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)
{
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);
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)
{
/* 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)) {
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;
}
drivers/scsi/qla4xxx/ql4_inline.h 0 → 100644
View file @ afaf5a2d
/*
* 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);
}
drivers/scsi/qla4xxx/ql4_iocb.c 0 → 100644
View file @ afaf5a2d
/*
* 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 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;
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);
index = (uint32_t)cmd->request->tag;
/* 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;
}
srb->cmd->host_scribble = (unsigned char *)srb;
/* 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;
}
drivers/scsi/qla4xxx/ql4_isr.c 0 → 100644
View file @ afaf5a2d
/*
* 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));
return;
}
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);
}
drivers/scsi/qla4xxx/ql4_mbx.c 0 → 100644
View file @ afaf5a2d
/*
* 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;
}
drivers/scsi/qla4xxx/ql4_nvram.c 0 → 100644
View file @ afaf5a2d
/*
* 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;
}
drivers/scsi/qla4xxx/ql4_nvram.h 0 → 100644
View file @ afaf5a2d
/*
* 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_ */
drivers/scsi/qla4xxx/ql4_os.c 0 → 100644
View file @ afaf5a2d
/*
* 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 void qla4xxx_slave_destroy(struct scsi_device *sdev);
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,
.slave_destroy = qla4xxx_slave_destroy,
.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 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;
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;
struct scsi_cmnd *cmd;
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 = 0; index < ha->host->can_queue; index++) {
cmd = scsi_host_find_tag(ha->host, index);
if (cmd != NULL)
break;
}
spin_unlock_irqrestore(&ha->hardware_lock, flags);
/* If No Commands are pending, wait is complete */
if (index == ha->host->can_queue) {
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 = 0; i < ha->host->can_queue; i++) {
srb = qla4xxx_del_from_active_array(ha, i);
if (srb != NULL) {
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 = MAX_SRBS ;
host->transportt = qla4xxx_scsi_transport;
ret = scsi_init_shared_tag_map(host, MAX_SRBS);
if (ret) {
dev_warn(&ha->pdev->dev, "scsi_init_shared_tag_map failed");
goto probe_failed;
}
/* 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))
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;
sdev->tagged_supported = 1;
scsi_activate_tcq(sdev, sdev->host->can_queue);
return 0;
}
static int qla4xxx_slave_configure(struct scsi_device *sdev)
{
sdev->tagged_supported = 1;
return 0;
}
static void qla4xxx_slave_destroy(struct scsi_device *sdev)
{
scsi_deactivate_tcq(sdev, 1);
}
/**
* 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;
struct scsi_cmnd *cmd;
if (!(cmd = scsi_host_find_tag(ha->host, index)))
return srb;
if (!(srb = (struct srb *)cmd->host_scribble))
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 = 0;
struct scsi_cmnd *cmd;
/*
* Waiting for all commands for the designated target in the active
* array
*/
for (cnt = 0; cnt < ha->host->can_queue; cnt++) {
cmd = scsi_host_find_tag(ha->host, cnt);
if (cmd && cmd->device->id == t && cmd->device->lun == l) {
if (!qla4xxx_eh_wait_on_command(ha, cmd)) {
status++;
break;
}
}
}
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);
drivers/scsi/qla4xxx/ql4_version.h 0 → 100644
View file @ afaf5a2d
/*
* 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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