2 * QLOGIC LINUX SOFTWARE
4 * QLogic ISP2x00 device driver for Linux 2.6.x
5 * Copyright (C) 2003-2005 QLogic Corporation
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the
10 * Free Software Foundation; either version 2, or (at your option) any
13 * This program is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * General Public License for more details.
21 #include <linux/moduleparam.h>
22 #include <linux/vmalloc.h>
23 #include <linux/smp_lock.h>
24 #include <linux/delay.h>
26 #include <scsi/scsi_tcq.h>
27 #include <scsi/scsicam.h>
28 #include <scsi/scsi_transport.h>
29 #include <scsi/scsi_transport_fc.h>
34 char qla2x00_version_str
[40];
37 * SRB allocation cache
39 static kmem_cache_t
*srb_cachep
;
42 * Ioctl related information.
46 int ql2xlogintimeout
= 20;
47 module_param(ql2xlogintimeout
, int, S_IRUGO
|S_IRUSR
);
48 MODULE_PARM_DESC(ql2xlogintimeout
,
49 "Login timeout value in seconds.");
51 int qlport_down_retry
= 30;
52 module_param(qlport_down_retry
, int, S_IRUGO
|S_IRUSR
);
53 MODULE_PARM_DESC(qlport_down_retry
,
54 "Maximum number of command retries to a port that returns"
55 "a PORT-DOWN status.");
57 int ql2xplogiabsentdevice
;
58 module_param(ql2xplogiabsentdevice
, int, S_IRUGO
|S_IWUSR
);
59 MODULE_PARM_DESC(ql2xplogiabsentdevice
,
60 "Option to enable PLOGI to devices that are not present after "
61 "a Fabric scan. This is needed for several broken switches."
62 "Default is 0 - no PLOGI. 1 - perfom PLOGI.");
64 int ql2xenablezio
= 0;
65 module_param(ql2xenablezio
, int, S_IRUGO
|S_IRUSR
);
66 MODULE_PARM_DESC(ql2xenablezio
,
67 "Option to enable ZIO:If 1 then enable it otherwise"
68 " use the default set in the NVRAM."
69 " Default is 0 : disabled");
71 int ql2xintrdelaytimer
= 10;
72 module_param(ql2xintrdelaytimer
, int, S_IRUGO
|S_IRUSR
);
73 MODULE_PARM_DESC(ql2xintrdelaytimer
,
74 "ZIO: Waiting time for Firmware before it generates an "
75 "interrupt to the host to notify completion of request.");
77 int ql2xloginretrycount
= 0;
78 module_param(ql2xloginretrycount
, int, S_IRUGO
|S_IRUSR
);
79 MODULE_PARM_DESC(ql2xloginretrycount
,
80 "Specify an alternate value for the NVRAM login retry count.");
83 module_param(ql2xfwloadbin
, int, S_IRUGO
|S_IRUSR
);
84 MODULE_PARM_DESC(ql2xfwloadbin
,
85 "Load ISP2xxx firmware image via hotplug.");
87 static void qla2x00_free_device(scsi_qla_host_t
*);
89 static void qla2x00_config_dma_addressing(scsi_qla_host_t
*ha
);
92 module_param(ql2xfdmienable
, int, S_IRUGO
|S_IRUSR
);
93 MODULE_PARM_DESC(ql2xfdmienable
,
94 "Enables FDMI registratons "
95 "Default is 0 - no FDMI. 1 - perfom FDMI.");
98 * SCSI host template entry points
100 static int qla2xxx_slave_configure(struct scsi_device
* device
);
101 static int qla2xxx_slave_alloc(struct scsi_device
*);
102 static void qla2xxx_slave_destroy(struct scsi_device
*);
103 static int qla2x00_queuecommand(struct scsi_cmnd
*cmd
,
104 void (*fn
)(struct scsi_cmnd
*));
105 static int qla24xx_queuecommand(struct scsi_cmnd
*cmd
,
106 void (*fn
)(struct scsi_cmnd
*));
107 static int qla2xxx_eh_abort(struct scsi_cmnd
*);
108 static int qla2xxx_eh_device_reset(struct scsi_cmnd
*);
109 static int qla2xxx_eh_bus_reset(struct scsi_cmnd
*);
110 static int qla2xxx_eh_host_reset(struct scsi_cmnd
*);
111 static int qla2x00_loop_reset(scsi_qla_host_t
*ha
);
112 static int qla2x00_device_reset(scsi_qla_host_t
*, fc_port_t
*);
114 static int qla2x00_change_queue_depth(struct scsi_device
*, int);
115 static int qla2x00_change_queue_type(struct scsi_device
*, int);
117 static struct scsi_host_template qla2x00_driver_template
= {
118 .module
= THIS_MODULE
,
120 .queuecommand
= qla2x00_queuecommand
,
122 .eh_abort_handler
= qla2xxx_eh_abort
,
123 .eh_device_reset_handler
= qla2xxx_eh_device_reset
,
124 .eh_bus_reset_handler
= qla2xxx_eh_bus_reset
,
125 .eh_host_reset_handler
= qla2xxx_eh_host_reset
,
127 .slave_configure
= qla2xxx_slave_configure
,
129 .slave_alloc
= qla2xxx_slave_alloc
,
130 .slave_destroy
= qla2xxx_slave_destroy
,
131 .change_queue_depth
= qla2x00_change_queue_depth
,
132 .change_queue_type
= qla2x00_change_queue_type
,
135 .use_clustering
= ENABLE_CLUSTERING
,
136 .sg_tablesize
= SG_ALL
,
139 * The RISC allows for each command to transfer (2^32-1) bytes of data,
140 * which equates to 0x800000 sectors.
142 .max_sectors
= 0xFFFF,
145 static struct scsi_host_template qla24xx_driver_template
= {
146 .module
= THIS_MODULE
,
148 .queuecommand
= qla24xx_queuecommand
,
150 .eh_abort_handler
= qla2xxx_eh_abort
,
151 .eh_device_reset_handler
= qla2xxx_eh_device_reset
,
152 .eh_bus_reset_handler
= qla2xxx_eh_bus_reset
,
153 .eh_host_reset_handler
= qla2xxx_eh_host_reset
,
155 .slave_configure
= qla2xxx_slave_configure
,
157 .slave_alloc
= qla2xxx_slave_alloc
,
158 .slave_destroy
= qla2xxx_slave_destroy
,
159 .change_queue_depth
= qla2x00_change_queue_depth
,
160 .change_queue_type
= qla2x00_change_queue_type
,
163 .use_clustering
= ENABLE_CLUSTERING
,
164 .sg_tablesize
= SG_ALL
,
166 .max_sectors
= 0xFFFF,
169 static struct scsi_transport_template
*qla2xxx_transport_template
= NULL
;
171 /* TODO Convert to inlines
175 #define WATCH_INTERVAL 1 /* number of seconds */
177 static void qla2x00_timer(scsi_qla_host_t
*);
179 static __inline__
void qla2x00_start_timer(scsi_qla_host_t
*,
180 void *, unsigned long);
181 static __inline__
void qla2x00_restart_timer(scsi_qla_host_t
*, unsigned long);
182 static __inline__
void qla2x00_stop_timer(scsi_qla_host_t
*);
185 qla2x00_start_timer(scsi_qla_host_t
*ha
, void *func
, unsigned long interval
)
187 init_timer(&ha
->timer
);
188 ha
->timer
.expires
= jiffies
+ interval
* HZ
;
189 ha
->timer
.data
= (unsigned long)ha
;
190 ha
->timer
.function
= (void (*)(unsigned long))func
;
191 add_timer(&ha
->timer
);
192 ha
->timer_active
= 1;
196 qla2x00_restart_timer(scsi_qla_host_t
*ha
, unsigned long interval
)
198 mod_timer(&ha
->timer
, jiffies
+ interval
* HZ
);
201 static __inline__
void
202 qla2x00_stop_timer(scsi_qla_host_t
*ha
)
204 del_timer_sync(&ha
->timer
);
205 ha
->timer_active
= 0;
208 static int qla2x00_do_dpc(void *data
);
210 static void qla2x00_rst_aen(scsi_qla_host_t
*);
212 static uint8_t qla2x00_mem_alloc(scsi_qla_host_t
*);
213 static void qla2x00_mem_free(scsi_qla_host_t
*ha
);
214 static int qla2x00_allocate_sp_pool( scsi_qla_host_t
*ha
);
215 static void qla2x00_free_sp_pool(scsi_qla_host_t
*ha
);
216 static void qla2x00_sp_free_dma(scsi_qla_host_t
*, srb_t
*);
217 void qla2x00_sp_compl(scsi_qla_host_t
*ha
, srb_t
*);
219 /* -------------------------------------------------------------------------- */
222 qla2x00_pci_info_str(struct scsi_qla_host
*ha
, char *str
)
224 static char *pci_bus_modes
[] = {
225 "33", "66", "100", "133",
230 pci_bus
= (ha
->pci_attr
& (BIT_9
| BIT_10
)) >> 9;
233 strcat(str
, pci_bus_modes
[pci_bus
]);
235 pci_bus
= (ha
->pci_attr
& BIT_8
) >> 8;
237 strcat(str
, pci_bus_modes
[pci_bus
]);
239 strcat(str
, " MHz)");
245 qla24xx_pci_info_str(struct scsi_qla_host
*ha
, char *str
)
247 static char *pci_bus_modes
[] = { "33", "66", "100", "133", };
251 pcie_reg
= pci_find_capability(ha
->pdev
, PCI_CAP_ID_EXP
);
254 uint16_t pcie_lstat
, lspeed
, lwidth
;
257 pci_read_config_word(ha
->pdev
, pcie_reg
, &pcie_lstat
);
258 lspeed
= pcie_lstat
& (BIT_0
| BIT_1
| BIT_2
| BIT_3
);
259 lwidth
= (pcie_lstat
&
260 (BIT_4
| BIT_5
| BIT_6
| BIT_7
| BIT_8
| BIT_9
)) >> 4;
262 strcpy(str
, "PCIe (");
264 strcat(str
, "2.5Gb/s ");
266 strcat(str
, "<unknown> ");
267 snprintf(lwstr
, sizeof(lwstr
), "x%d)", lwidth
);
274 pci_bus
= (ha
->pci_attr
& CSRX_PCIX_BUS_MODE_MASK
) >> 8;
275 if (pci_bus
== 0 || pci_bus
== 8) {
277 strcat(str
, pci_bus_modes
[pci_bus
>> 3]);
281 strcat(str
, "Mode 2");
283 strcat(str
, "Mode 1");
285 strcat(str
, pci_bus_modes
[pci_bus
& ~BIT_2
]);
287 strcat(str
, " MHz)");
293 qla2x00_fw_version_str(struct scsi_qla_host
*ha
, char *str
)
297 sprintf(str
, "%d.%02d.%02d ", ha
->fw_major_version
,
298 ha
->fw_minor_version
,
299 ha
->fw_subminor_version
);
301 if (ha
->fw_attributes
& BIT_9
) {
306 switch (ha
->fw_attributes
& 0xFF) {
320 sprintf(un_str
, "(%x)", ha
->fw_attributes
);
324 if (ha
->fw_attributes
& 0x100)
331 qla24xx_fw_version_str(struct scsi_qla_host
*ha
, char *str
)
333 sprintf(str
, "%d.%02d.%02d ", ha
->fw_major_version
,
334 ha
->fw_minor_version
,
335 ha
->fw_subminor_version
);
337 if (ha
->fw_attributes
& BIT_0
)
338 strcat(str
, "[Class 2] ");
339 if (ha
->fw_attributes
& BIT_1
)
340 strcat(str
, "[IP] ");
341 if (ha
->fw_attributes
& BIT_2
)
342 strcat(str
, "[Multi-ID] ");
343 if (ha
->fw_attributes
& BIT_13
)
344 strcat(str
, "[Experimental]");
348 static inline srb_t
*
349 qla2x00_get_new_sp(scsi_qla_host_t
*ha
, fc_port_t
*fcport
,
350 struct scsi_cmnd
*cmd
, void (*done
)(struct scsi_cmnd
*))
354 sp
= mempool_alloc(ha
->srb_mempool
, GFP_ATOMIC
);
358 atomic_set(&sp
->ref_count
, 1);
363 CMD_SP(cmd
) = (void *)sp
;
364 cmd
->scsi_done
= done
;
370 qla2x00_queuecommand(struct scsi_cmnd
*cmd
, void (*done
)(struct scsi_cmnd
*))
372 scsi_qla_host_t
*ha
= to_qla_host(cmd
->device
->host
);
373 fc_port_t
*fcport
= (struct fc_port
*) cmd
->device
->hostdata
;
378 cmd
->result
= DID_NO_CONNECT
<< 16;
379 goto qc_fail_command
;
382 if (atomic_read(&fcport
->state
) != FCS_ONLINE
) {
383 if (atomic_read(&fcport
->state
) == FCS_DEVICE_DEAD
||
384 atomic_read(&ha
->loop_state
) == LOOP_DEAD
) {
385 cmd
->result
= DID_NO_CONNECT
<< 16;
386 goto qc_fail_command
;
391 spin_unlock_irq(ha
->host
->host_lock
);
393 sp
= qla2x00_get_new_sp(ha
, fcport
, cmd
, done
);
395 goto qc_host_busy_lock
;
397 rval
= qla2x00_start_scsi(sp
);
398 if (rval
!= QLA_SUCCESS
)
399 goto qc_host_busy_free_sp
;
401 /* Manage unprocessed RIO/ZIO commands in response queue. */
402 if (ha
->flags
.online
&& ha
->flags
.process_response_queue
&&
403 ha
->response_ring_ptr
->signature
!= RESPONSE_PROCESSED
) {
406 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
407 qla2x00_process_response_queue(ha
);
408 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
411 spin_lock_irq(ha
->host
->host_lock
);
415 qc_host_busy_free_sp
:
416 qla2x00_sp_free_dma(ha
, sp
);
417 mempool_free(sp
, ha
->srb_mempool
);
420 spin_lock_irq(ha
->host
->host_lock
);
423 return SCSI_MLQUEUE_HOST_BUSY
;
433 qla24xx_queuecommand(struct scsi_cmnd
*cmd
, void (*done
)(struct scsi_cmnd
*))
435 scsi_qla_host_t
*ha
= to_qla_host(cmd
->device
->host
);
436 fc_port_t
*fcport
= (struct fc_port
*) cmd
->device
->hostdata
;
441 cmd
->result
= DID_NO_CONNECT
<< 16;
442 goto qc24_fail_command
;
445 if (atomic_read(&fcport
->state
) != FCS_ONLINE
) {
446 if (atomic_read(&fcport
->state
) == FCS_DEVICE_DEAD
||
447 atomic_read(&ha
->loop_state
) == LOOP_DEAD
) {
448 cmd
->result
= DID_NO_CONNECT
<< 16;
449 goto qc24_fail_command
;
454 spin_unlock_irq(ha
->host
->host_lock
);
456 sp
= qla2x00_get_new_sp(ha
, fcport
, cmd
, done
);
458 goto qc24_host_busy_lock
;
460 rval
= qla24xx_start_scsi(sp
);
461 if (rval
!= QLA_SUCCESS
)
462 goto qc24_host_busy_free_sp
;
464 spin_lock_irq(ha
->host
->host_lock
);
468 qc24_host_busy_free_sp
:
469 qla2x00_sp_free_dma(ha
, sp
);
470 mempool_free(sp
, ha
->srb_mempool
);
473 spin_lock_irq(ha
->host
->host_lock
);
476 return SCSI_MLQUEUE_HOST_BUSY
;
486 * qla2x00_eh_wait_on_command
487 * Waits for the command to be returned by the Firmware for some
491 * ha = actual ha whose done queue will contain the command
492 * returned by firmware.
493 * cmd = Scsi Command to wait on.
494 * flag = Abort/Reset(Bus or Device Reset)
501 qla2x00_eh_wait_on_command(scsi_qla_host_t
*ha
, struct scsi_cmnd
*cmd
)
503 #define ABORT_POLLING_PERIOD HZ
504 #define ABORT_WAIT_ITER ((10 * HZ) / (ABORT_POLLING_PERIOD))
505 unsigned long wait_iter
= ABORT_WAIT_ITER
;
506 int ret
= QLA_SUCCESS
;
508 while (CMD_SP(cmd
)) {
509 set_current_state(TASK_UNINTERRUPTIBLE
);
510 schedule_timeout(ABORT_POLLING_PERIOD
);
516 ret
= QLA_FUNCTION_FAILED
;
522 * qla2x00_wait_for_hba_online
523 * Wait till the HBA is online after going through
524 * <= MAX_RETRIES_OF_ISP_ABORT or
525 * finally HBA is disabled ie marked offline
528 * ha - pointer to host adapter structure
531 * Does context switching-Release SPIN_LOCK
532 * (if any) before calling this routine.
535 * Success (Adapter is online) : 0
536 * Failed (Adapter is offline/disabled) : 1
539 qla2x00_wait_for_hba_online(scsi_qla_host_t
*ha
)
542 unsigned long wait_online
;
544 wait_online
= jiffies
+ (MAX_LOOP_TIMEOUT
* HZ
);
545 while (((test_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
)) ||
546 test_bit(ABORT_ISP_ACTIVE
, &ha
->dpc_flags
) ||
547 test_bit(ISP_ABORT_RETRY
, &ha
->dpc_flags
) ||
548 ha
->dpc_active
) && time_before(jiffies
, wait_online
)) {
552 if (ha
->flags
.online
)
553 return_status
= QLA_SUCCESS
;
555 return_status
= QLA_FUNCTION_FAILED
;
557 DEBUG2(printk("%s return_status=%d\n",__func__
,return_status
));
559 return (return_status
);
563 * qla2x00_wait_for_loop_ready
564 * Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
565 * to be in LOOP_READY state.
567 * ha - pointer to host adapter structure
570 * Does context switching-Release SPIN_LOCK
571 * (if any) before calling this routine.
575 * Success (LOOP_READY) : 0
576 * Failed (LOOP_NOT_READY) : 1
579 qla2x00_wait_for_loop_ready(scsi_qla_host_t
*ha
)
581 int return_status
= QLA_SUCCESS
;
582 unsigned long loop_timeout
;
584 /* wait for 5 min at the max for loop to be ready */
585 loop_timeout
= jiffies
+ (MAX_LOOP_TIMEOUT
* HZ
);
587 while ((!atomic_read(&ha
->loop_down_timer
) &&
588 atomic_read(&ha
->loop_state
) == LOOP_DOWN
) ||
589 atomic_read(&ha
->loop_state
) != LOOP_READY
) {
591 if (time_after_eq(jiffies
, loop_timeout
)) {
592 return_status
= QLA_FUNCTION_FAILED
;
596 return (return_status
);
599 /**************************************************************************
603 * The abort function will abort the specified command.
606 * cmd = Linux SCSI command packet to be aborted.
609 * Either SUCCESS or FAILED.
612 **************************************************************************/
614 qla2xxx_eh_abort(struct scsi_cmnd
*cmd
)
616 scsi_qla_host_t
*ha
= to_qla_host(cmd
->device
->host
);
619 unsigned int id
, lun
;
620 unsigned long serial
;
628 id
= cmd
->device
->id
;
629 lun
= cmd
->device
->lun
;
630 serial
= cmd
->serial_number
;
632 /* Check active list for command command. */
633 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
634 for (i
= 1; i
< MAX_OUTSTANDING_COMMANDS
; i
++) {
635 sp
= ha
->outstanding_cmds
[i
];
643 DEBUG2(printk("%s(%ld): aborting sp %p from RISC. pid=%ld "
644 "sp->state=%x\n", __func__
, ha
->host_no
, sp
, serial
,
646 DEBUG3(qla2x00_print_scsi_cmd(cmd
);)
648 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
649 if (ha
->isp_ops
.abort_command(ha
, sp
)) {
650 DEBUG2(printk("%s(%ld): abort_command "
651 "mbx failed.\n", __func__
, ha
->host_no
));
653 DEBUG3(printk("%s(%ld): abort_command "
654 "mbx success.\n", __func__
, ha
->host_no
));
657 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
661 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
663 /* Wait for the command to be returned. */
664 if (ret
== SUCCESS
) {
665 if (qla2x00_eh_wait_on_command(ha
, cmd
) != QLA_SUCCESS
) {
666 qla_printk(KERN_ERR
, ha
,
667 "scsi(%ld:%d:%d): Abort handler timed out -- %lx "
668 "%x.\n", ha
->host_no
, id
, lun
, serial
, ret
);
672 qla_printk(KERN_INFO
, ha
,
673 "scsi(%ld:%d:%d): Abort command issued -- %lx %x.\n", ha
->host_no
,
674 id
, lun
, serial
, ret
);
679 /**************************************************************************
680 * qla2x00_eh_wait_for_pending_target_commands
683 * Waits for all the commands to come back from the specified target.
686 * ha - pointer to scsi_qla_host structure.
689 * Either SUCCESS or FAILED.
692 **************************************************************************/
694 qla2x00_eh_wait_for_pending_target_commands(scsi_qla_host_t
*ha
, unsigned int t
)
699 struct scsi_cmnd
*cmd
;
705 * Waiting for all commands for the designated target in the active
708 for (cnt
= 1; cnt
< MAX_OUTSTANDING_COMMANDS
; cnt
++) {
709 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
710 sp
= ha
->outstanding_cmds
[cnt
];
713 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
714 if (cmd
->device
->id
== t
) {
715 if (!qla2x00_eh_wait_on_command(ha
, cmd
)) {
721 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
728 /**************************************************************************
729 * qla2xxx_eh_device_reset
732 * The device reset function will reset the target and abort any
733 * executing commands.
735 * NOTE: The use of SP is undefined within this context. Do *NOT*
736 * attempt to use this value, even if you determine it is
740 * cmd = Linux SCSI command packet of the command that cause the
744 * SUCCESS/FAILURE (defined as macro in scsi.h).
746 **************************************************************************/
748 qla2xxx_eh_device_reset(struct scsi_cmnd
*cmd
)
750 scsi_qla_host_t
*ha
= to_qla_host(cmd
->device
->host
);
751 fc_port_t
*fcport
= (struct fc_port
*) cmd
->device
->hostdata
;
754 unsigned int id
, lun
;
755 unsigned long serial
;
759 id
= cmd
->device
->id
;
760 lun
= cmd
->device
->lun
;
761 serial
= cmd
->serial_number
;
763 sp
= (srb_t
*) CMD_SP(cmd
);
767 qla_printk(KERN_INFO
, ha
,
768 "scsi(%ld:%d:%d): DEVICE RESET ISSUED.\n", ha
->host_no
, id
, lun
);
770 if (qla2x00_wait_for_hba_online(ha
) != QLA_SUCCESS
)
771 goto eh_dev_reset_done
;
773 if (qla2x00_wait_for_loop_ready(ha
) == QLA_SUCCESS
) {
774 if (qla2x00_device_reset(ha
, fcport
) == 0)
777 #if defined(LOGOUT_AFTER_DEVICE_RESET)
778 if (ret
== SUCCESS
) {
779 if (fcport
->flags
& FC_FABRIC_DEVICE
) {
780 ha
->isp_ops
.fabric_logout(ha
, fcport
->loop_id
);
781 qla2x00_mark_device_lost(ha
, fcport
);
786 DEBUG2(printk(KERN_INFO
787 "%s failed: loop not ready\n",__func__
);)
791 DEBUG3(printk("%s(%ld): device reset failed\n",
792 __func__
, ha
->host_no
));
793 qla_printk(KERN_INFO
, ha
, "%s: device reset failed\n",
796 goto eh_dev_reset_done
;
800 * If we are coming down the EH path, wait for all commands to
801 * complete for the device.
803 if (cmd
->device
->host
->eh_active
) {
804 if (qla2x00_eh_wait_for_pending_target_commands(ha
, id
))
808 DEBUG3(printk("%s(%ld): failed while waiting for "
809 "commands\n", __func__
, ha
->host_no
));
810 qla_printk(KERN_INFO
, ha
,
811 "%s: failed while waiting for commands\n",
814 goto eh_dev_reset_done
;
818 qla_printk(KERN_INFO
, ha
,
819 "scsi(%ld:%d:%d): DEVICE RESET SUCCEEDED.\n", ha
->host_no
, id
, lun
);
825 /**************************************************************************
826 * qla2x00_eh_wait_for_pending_commands
829 * Waits for all the commands to come back from the specified host.
832 * ha - pointer to scsi_qla_host structure.
839 **************************************************************************/
841 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t
*ha
)
846 struct scsi_cmnd
*cmd
;
852 * Waiting for all commands for the designated target in the active
855 for (cnt
= 1; cnt
< MAX_OUTSTANDING_COMMANDS
; cnt
++) {
856 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
857 sp
= ha
->outstanding_cmds
[cnt
];
860 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
861 status
= qla2x00_eh_wait_on_command(ha
, cmd
);
866 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
873 /**************************************************************************
874 * qla2xxx_eh_bus_reset
877 * The bus reset function will reset the bus and abort any executing
881 * cmd = Linux SCSI command packet of the command that cause the
885 * SUCCESS/FAILURE (defined as macro in scsi.h).
887 **************************************************************************/
889 qla2xxx_eh_bus_reset(struct scsi_cmnd
*cmd
)
891 scsi_qla_host_t
*ha
= to_qla_host(cmd
->device
->host
);
892 fc_port_t
*fcport
= (struct fc_port
*) cmd
->device
->hostdata
;
895 unsigned int id
, lun
;
896 unsigned long serial
;
900 id
= cmd
->device
->id
;
901 lun
= cmd
->device
->lun
;
902 serial
= cmd
->serial_number
;
904 sp
= (srb_t
*) CMD_SP(cmd
);
908 qla_printk(KERN_INFO
, ha
,
909 "scsi(%ld:%d:%d): LOOP RESET ISSUED.\n", ha
->host_no
, id
, lun
);
911 if (qla2x00_wait_for_hba_online(ha
) != QLA_SUCCESS
) {
912 DEBUG2(printk("%s failed:board disabled\n",__func__
));
913 goto eh_bus_reset_done
;
916 if (qla2x00_wait_for_loop_ready(ha
) == QLA_SUCCESS
) {
917 if (qla2x00_loop_reset(ha
) == QLA_SUCCESS
)
921 goto eh_bus_reset_done
;
923 /* Waiting for our command in done_queue to be returned to OS.*/
924 if (cmd
->device
->host
->eh_active
)
925 if (!qla2x00_eh_wait_for_pending_commands(ha
))
929 qla_printk(KERN_INFO
, ha
, "%s: reset %s\n", __func__
,
930 (ret
== FAILED
) ? "failed" : "succeded");
935 /**************************************************************************
936 * qla2xxx_eh_host_reset
939 * The reset function will reset the Adapter.
942 * cmd = Linux SCSI command packet of the command that cause the
946 * Either SUCCESS or FAILED.
949 **************************************************************************/
951 qla2xxx_eh_host_reset(struct scsi_cmnd
*cmd
)
953 scsi_qla_host_t
*ha
= to_qla_host(cmd
->device
->host
);
954 fc_port_t
*fcport
= (struct fc_port
*) cmd
->device
->hostdata
;
957 unsigned int id
, lun
;
958 unsigned long serial
;
962 id
= cmd
->device
->id
;
963 lun
= cmd
->device
->lun
;
964 serial
= cmd
->serial_number
;
966 sp
= (srb_t
*) CMD_SP(cmd
);
970 qla_printk(KERN_INFO
, ha
,
971 "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", ha
->host_no
, id
, lun
);
973 if (qla2x00_wait_for_hba_online(ha
) != QLA_SUCCESS
)
974 goto eh_host_reset_lock
;
977 * Fixme-may be dpc thread is active and processing
978 * loop_resync,so wait a while for it to
979 * be completed and then issue big hammer.Otherwise
980 * it may cause I/O failure as big hammer marks the
981 * devices as lost kicking of the port_down_timer
982 * while dpc is stuck for the mailbox to complete.
984 qla2x00_wait_for_loop_ready(ha
);
985 set_bit(ABORT_ISP_ACTIVE
, &ha
->dpc_flags
);
986 if (qla2x00_abort_isp(ha
)) {
987 clear_bit(ABORT_ISP_ACTIVE
, &ha
->dpc_flags
);
988 /* failed. schedule dpc to try */
989 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
991 if (qla2x00_wait_for_hba_online(ha
) != QLA_SUCCESS
)
992 goto eh_host_reset_lock
;
994 clear_bit(ABORT_ISP_ACTIVE
, &ha
->dpc_flags
);
996 /* Waiting for our command in done_queue to be returned to OS.*/
997 if (qla2x00_eh_wait_for_pending_commands(ha
))
1001 qla_printk(KERN_INFO
, ha
, "%s: reset %s\n", __func__
,
1002 (ret
== FAILED
) ? "failed" : "succeded");
1008 * qla2x00_loop_reset
1012 * ha = adapter block pointer.
1018 qla2x00_loop_reset(scsi_qla_host_t
*ha
)
1020 int status
= QLA_SUCCESS
;
1021 struct fc_port
*fcport
;
1023 if (ha
->flags
.enable_lip_reset
) {
1024 status
= qla2x00_lip_reset(ha
);
1027 if (status
== QLA_SUCCESS
&& ha
->flags
.enable_target_reset
) {
1028 list_for_each_entry(fcport
, &ha
->fcports
, list
) {
1029 if (fcport
->port_type
!= FCT_TARGET
)
1032 status
= qla2x00_device_reset(ha
, fcport
);
1033 if (status
!= QLA_SUCCESS
)
1038 if (status
== QLA_SUCCESS
&&
1039 ((!ha
->flags
.enable_target_reset
&&
1040 !ha
->flags
.enable_lip_reset
) ||
1041 ha
->flags
.enable_lip_full_login
)) {
1043 status
= qla2x00_full_login_lip(ha
);
1046 /* Issue marker command only when we are going to start the I/O */
1047 ha
->marker_needed
= 1;
1051 DEBUG2_3(printk("%s(%ld): **** FAILED ****\n",
1056 DEBUG3(printk("%s(%ld): exiting normally.\n",
1065 * qla2x00_device_reset
1066 * Issue bus device reset message to the target.
1069 * ha = adapter block pointer.
1071 * TARGET_QUEUE_LOCK must be released.
1072 * ADAPTER_STATE_LOCK must be released.
1078 qla2x00_device_reset(scsi_qla_host_t
*ha
, fc_port_t
*reset_fcport
)
1080 /* Abort Target command will clear Reservation */
1081 return ha
->isp_ops
.abort_target(reset_fcport
);
1085 qla2xxx_slave_alloc(struct scsi_device
*sdev
)
1087 struct fc_rport
*rport
= starget_to_rport(scsi_target(sdev
));
1092 sdev
->hostdata
= rport
->dd_data
;
1098 qla2xxx_slave_configure(struct scsi_device
*sdev
)
1100 scsi_qla_host_t
*ha
= to_qla_host(sdev
->host
);
1101 struct fc_rport
*rport
= starget_to_rport(sdev
->sdev_target
);
1103 if (sdev
->tagged_supported
)
1104 scsi_activate_tcq(sdev
, 32);
1106 scsi_deactivate_tcq(sdev
, 32);
1108 rport
->dev_loss_tmo
= ha
->port_down_retry_count
+ 5;
1114 qla2xxx_slave_destroy(struct scsi_device
*sdev
)
1116 sdev
->hostdata
= NULL
;
1120 qla2x00_change_queue_depth(struct scsi_device
*sdev
, int qdepth
)
1122 scsi_adjust_queue_depth(sdev
, scsi_get_tag_type(sdev
), qdepth
);
1123 return sdev
->queue_depth
;
1127 qla2x00_change_queue_type(struct scsi_device
*sdev
, int tag_type
)
1129 if (sdev
->tagged_supported
) {
1130 scsi_set_tag_type(sdev
, tag_type
);
1132 scsi_activate_tcq(sdev
, sdev
->queue_depth
);
1134 scsi_deactivate_tcq(sdev
, sdev
->queue_depth
);
1142 * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1145 * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1146 * supported addressing method.
1149 qla2x00_config_dma_addressing(scsi_qla_host_t
*ha
)
1151 /* Assume a 32bit DMA mask. */
1152 ha
->flags
.enable_64bit_addressing
= 0;
1154 if (!dma_set_mask(&ha
->pdev
->dev
, DMA_64BIT_MASK
)) {
1155 /* Any upper-dword bits set? */
1156 if (MSD(dma_get_required_mask(&ha
->pdev
->dev
)) &&
1157 !pci_set_consistent_dma_mask(ha
->pdev
, DMA_64BIT_MASK
)) {
1158 /* Ok, a 64bit DMA mask is applicable. */
1159 ha
->flags
.enable_64bit_addressing
= 1;
1160 ha
->isp_ops
.calc_req_entries
= qla2x00_calc_iocbs_64
;
1161 ha
->isp_ops
.build_iocbs
= qla2x00_build_scsi_iocbs_64
;
1166 dma_set_mask(&ha
->pdev
->dev
, DMA_32BIT_MASK
);
1167 pci_set_consistent_dma_mask(ha
->pdev
, DMA_32BIT_MASK
);
1171 qla2x00_iospace_config(scsi_qla_host_t
*ha
)
1173 unsigned long pio
, pio_len
, pio_flags
;
1174 unsigned long mmio
, mmio_len
, mmio_flags
;
1176 /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1177 pio
= pci_resource_start(ha
->pdev
, 0);
1178 pio_len
= pci_resource_len(ha
->pdev
, 0);
1179 pio_flags
= pci_resource_flags(ha
->pdev
, 0);
1180 if (pio_flags
& IORESOURCE_IO
) {
1181 if (pio_len
< MIN_IOBASE_LEN
) {
1182 qla_printk(KERN_WARNING
, ha
,
1183 "Invalid PCI I/O region size (%s)...\n",
1184 pci_name(ha
->pdev
));
1188 qla_printk(KERN_WARNING
, ha
,
1189 "region #0 not a PIO resource (%s)...\n",
1190 pci_name(ha
->pdev
));
1194 /* Use MMIO operations for all accesses. */
1195 mmio
= pci_resource_start(ha
->pdev
, 1);
1196 mmio_len
= pci_resource_len(ha
->pdev
, 1);
1197 mmio_flags
= pci_resource_flags(ha
->pdev
, 1);
1199 if (!(mmio_flags
& IORESOURCE_MEM
)) {
1200 qla_printk(KERN_ERR
, ha
,
1201 "region #0 not an MMIO resource (%s), aborting\n",
1202 pci_name(ha
->pdev
));
1203 goto iospace_error_exit
;
1205 if (mmio_len
< MIN_IOBASE_LEN
) {
1206 qla_printk(KERN_ERR
, ha
,
1207 "Invalid PCI mem region size (%s), aborting\n",
1208 pci_name(ha
->pdev
));
1209 goto iospace_error_exit
;
1212 if (pci_request_regions(ha
->pdev
, ha
->brd_info
->drv_name
)) {
1213 qla_printk(KERN_WARNING
, ha
,
1214 "Failed to reserve PIO/MMIO regions (%s)\n",
1215 pci_name(ha
->pdev
));
1217 goto iospace_error_exit
;
1220 ha
->pio_address
= pio
;
1221 ha
->pio_length
= pio_len
;
1222 ha
->iobase
= ioremap(mmio
, MIN_IOBASE_LEN
);
1224 qla_printk(KERN_ERR
, ha
,
1225 "cannot remap MMIO (%s), aborting\n", pci_name(ha
->pdev
));
1227 goto iospace_error_exit
;
1237 qla2x00_enable_intrs(scsi_qla_host_t
*ha
)
1239 unsigned long flags
= 0;
1240 struct device_reg_2xxx __iomem
*reg
= &ha
->iobase
->isp
;
1242 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
1243 ha
->interrupts_on
= 1;
1244 /* enable risc and host interrupts */
1245 WRT_REG_WORD(®
->ictrl
, ICR_EN_INT
| ICR_EN_RISC
);
1246 RD_REG_WORD(®
->ictrl
);
1247 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
1252 qla2x00_disable_intrs(scsi_qla_host_t
*ha
)
1254 unsigned long flags
= 0;
1255 struct device_reg_2xxx __iomem
*reg
= &ha
->iobase
->isp
;
1257 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
1258 ha
->interrupts_on
= 0;
1259 /* disable risc and host interrupts */
1260 WRT_REG_WORD(®
->ictrl
, 0);
1261 RD_REG_WORD(®
->ictrl
);
1262 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
1266 qla24xx_enable_intrs(scsi_qla_host_t
*ha
)
1268 unsigned long flags
= 0;
1269 struct device_reg_24xx __iomem
*reg
= &ha
->iobase
->isp24
;
1271 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
1272 ha
->interrupts_on
= 1;
1273 WRT_REG_DWORD(®
->ictrl
, ICRX_EN_RISC_INT
);
1274 RD_REG_DWORD(®
->ictrl
);
1275 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
1279 qla24xx_disable_intrs(scsi_qla_host_t
*ha
)
1281 unsigned long flags
= 0;
1282 struct device_reg_24xx __iomem
*reg
= &ha
->iobase
->isp24
;
1284 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
1285 ha
->interrupts_on
= 0;
1286 WRT_REG_DWORD(®
->ictrl
, 0);
1287 RD_REG_DWORD(®
->ictrl
);
1288 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
1292 * PCI driver interface
1294 int qla2x00_probe_one(struct pci_dev
*pdev
, struct qla_board_info
*brd_info
)
1297 device_reg_t __iomem
*reg
;
1298 struct Scsi_Host
*host
;
1299 scsi_qla_host_t
*ha
;
1300 unsigned long flags
= 0;
1301 unsigned long wait_switch
= 0;
1306 if (pci_enable_device(pdev
))
1309 host
= scsi_host_alloc(brd_info
->sht
? brd_info
->sht
:
1310 &qla2x00_driver_template
, sizeof(scsi_qla_host_t
));
1313 "qla2xxx: Couldn't allocate host from scsi layer!\n");
1314 goto probe_disable_device
;
1317 /* Clear our data area */
1318 ha
= (scsi_qla_host_t
*)host
->hostdata
;
1319 memset(ha
, 0, sizeof(scsi_qla_host_t
));
1323 ha
->host_no
= host
->host_no
;
1324 ha
->brd_info
= brd_info
;
1325 sprintf(ha
->host_str
, "%s_%ld", ha
->brd_info
->drv_name
, ha
->host_no
);
1327 /* Configure PCI I/O space */
1328 ret
= qla2x00_iospace_config(ha
);
1332 qla_printk(KERN_INFO
, ha
,
1333 "Found an %s, irq %d, iobase 0x%p\n", ha
->brd_info
->isp_name
,
1334 pdev
->irq
, ha
->iobase
);
1336 spin_lock_init(&ha
->hardware_lock
);
1338 ha
->prev_topology
= 0;
1339 ha
->ports
= MAX_BUSES
;
1340 ha
->init_cb_size
= sizeof(init_cb_t
);
1341 ha
->mgmt_svr_loop_id
= MANAGEMENT_SERVER
;
1343 /* Assign ISP specific operations. */
1344 ha
->isp_ops
.pci_config
= qla2100_pci_config
;
1345 ha
->isp_ops
.reset_chip
= qla2x00_reset_chip
;
1346 ha
->isp_ops
.chip_diag
= qla2x00_chip_diag
;
1347 ha
->isp_ops
.config_rings
= qla2x00_config_rings
;
1348 ha
->isp_ops
.reset_adapter
= qla2x00_reset_adapter
;
1349 ha
->isp_ops
.nvram_config
= qla2x00_nvram_config
;
1350 ha
->isp_ops
.update_fw_options
= qla2x00_update_fw_options
;
1351 ha
->isp_ops
.load_risc
= qla2x00_load_risc
;
1352 ha
->isp_ops
.pci_info_str
= qla2x00_pci_info_str
;
1353 ha
->isp_ops
.fw_version_str
= qla2x00_fw_version_str
;
1354 ha
->isp_ops
.intr_handler
= qla2100_intr_handler
;
1355 ha
->isp_ops
.enable_intrs
= qla2x00_enable_intrs
;
1356 ha
->isp_ops
.disable_intrs
= qla2x00_disable_intrs
;
1357 ha
->isp_ops
.abort_command
= qla2x00_abort_command
;
1358 ha
->isp_ops
.abort_target
= qla2x00_abort_target
;
1359 ha
->isp_ops
.fabric_login
= qla2x00_login_fabric
;
1360 ha
->isp_ops
.fabric_logout
= qla2x00_fabric_logout
;
1361 ha
->isp_ops
.calc_req_entries
= qla2x00_calc_iocbs_32
;
1362 ha
->isp_ops
.build_iocbs
= qla2x00_build_scsi_iocbs_32
;
1363 ha
->isp_ops
.prep_ms_iocb
= qla2x00_prep_ms_iocb
;
1364 ha
->isp_ops
.prep_ms_fdmi_iocb
= qla2x00_prep_ms_fdmi_iocb
;
1365 ha
->isp_ops
.read_nvram
= qla2x00_read_nvram_data
;
1366 ha
->isp_ops
.write_nvram
= qla2x00_write_nvram_data
;
1367 ha
->isp_ops
.fw_dump
= qla2100_fw_dump
;
1368 ha
->isp_ops
.ascii_fw_dump
= qla2100_ascii_fw_dump
;
1369 if (IS_QLA2100(ha
)) {
1370 host
->max_id
= MAX_TARGETS_2100
;
1371 ha
->mbx_count
= MAILBOX_REGISTER_COUNT_2100
;
1372 ha
->request_q_length
= REQUEST_ENTRY_CNT_2100
;
1373 ha
->response_q_length
= RESPONSE_ENTRY_CNT_2100
;
1374 ha
->last_loop_id
= SNS_LAST_LOOP_ID_2100
;
1375 host
->sg_tablesize
= 32;
1376 ha
->gid_list_info_size
= 4;
1377 } else if (IS_QLA2200(ha
)) {
1378 host
->max_id
= MAX_TARGETS_2200
;
1379 ha
->mbx_count
= MAILBOX_REGISTER_COUNT
;
1380 ha
->request_q_length
= REQUEST_ENTRY_CNT_2200
;
1381 ha
->response_q_length
= RESPONSE_ENTRY_CNT_2100
;
1382 ha
->last_loop_id
= SNS_LAST_LOOP_ID_2100
;
1383 ha
->gid_list_info_size
= 4;
1384 } else if (IS_QLA23XX(ha
)) {
1385 host
->max_id
= MAX_TARGETS_2200
;
1386 ha
->mbx_count
= MAILBOX_REGISTER_COUNT
;
1387 ha
->request_q_length
= REQUEST_ENTRY_CNT_2200
;
1388 ha
->response_q_length
= RESPONSE_ENTRY_CNT_2300
;
1389 ha
->last_loop_id
= SNS_LAST_LOOP_ID_2300
;
1390 ha
->isp_ops
.pci_config
= qla2300_pci_config
;
1391 ha
->isp_ops
.intr_handler
= qla2300_intr_handler
;
1392 ha
->isp_ops
.fw_dump
= qla2300_fw_dump
;
1393 ha
->isp_ops
.ascii_fw_dump
= qla2300_ascii_fw_dump
;
1394 ha
->gid_list_info_size
= 6;
1395 } else if (IS_QLA24XX(ha
) || IS_QLA25XX(ha
)) {
1396 host
->max_id
= MAX_TARGETS_2200
;
1397 ha
->mbx_count
= MAILBOX_REGISTER_COUNT
;
1398 ha
->request_q_length
= REQUEST_ENTRY_CNT_24XX
;
1399 ha
->response_q_length
= RESPONSE_ENTRY_CNT_2300
;
1400 ha
->last_loop_id
= SNS_LAST_LOOP_ID_2300
;
1401 ha
->init_cb_size
= sizeof(struct init_cb_24xx
);
1402 ha
->mgmt_svr_loop_id
= 10;
1403 ha
->isp_ops
.pci_config
= qla24xx_pci_config
;
1404 ha
->isp_ops
.reset_chip
= qla24xx_reset_chip
;
1405 ha
->isp_ops
.chip_diag
= qla24xx_chip_diag
;
1406 ha
->isp_ops
.config_rings
= qla24xx_config_rings
;
1407 ha
->isp_ops
.reset_adapter
= qla24xx_reset_adapter
;
1408 ha
->isp_ops
.nvram_config
= qla24xx_nvram_config
;
1409 ha
->isp_ops
.update_fw_options
= qla24xx_update_fw_options
;
1410 ha
->isp_ops
.load_risc
= qla24xx_load_risc_flash
;
1412 ha
->isp_ops
.load_risc
= qla24xx_load_risc_hotplug
;
1413 ha
->isp_ops
.pci_info_str
= qla24xx_pci_info_str
;
1414 ha
->isp_ops
.fw_version_str
= qla24xx_fw_version_str
;
1415 ha
->isp_ops
.intr_handler
= qla24xx_intr_handler
;
1416 ha
->isp_ops
.enable_intrs
= qla24xx_enable_intrs
;
1417 ha
->isp_ops
.disable_intrs
= qla24xx_disable_intrs
;
1418 ha
->isp_ops
.abort_command
= qla24xx_abort_command
;
1419 ha
->isp_ops
.abort_target
= qla24xx_abort_target
;
1420 ha
->isp_ops
.fabric_login
= qla24xx_login_fabric
;
1421 ha
->isp_ops
.fabric_logout
= qla24xx_fabric_logout
;
1422 ha
->isp_ops
.prep_ms_iocb
= qla24xx_prep_ms_iocb
;
1423 ha
->isp_ops
.prep_ms_fdmi_iocb
= qla24xx_prep_ms_fdmi_iocb
;
1424 ha
->isp_ops
.read_nvram
= qla24xx_read_nvram_data
;
1425 ha
->isp_ops
.write_nvram
= qla24xx_write_nvram_data
;
1426 ha
->isp_ops
.fw_dump
= qla24xx_fw_dump
;
1427 ha
->isp_ops
.ascii_fw_dump
= qla24xx_ascii_fw_dump
;
1428 ha
->gid_list_info_size
= 8;
1430 host
->can_queue
= ha
->request_q_length
+ 128;
1432 /* load the F/W, read paramaters, and init the H/W */
1433 ha
->instance
= num_hosts
;
1435 init_MUTEX(&ha
->mbx_cmd_sem
);
1436 init_MUTEX_LOCKED(&ha
->mbx_intr_sem
);
1438 INIT_LIST_HEAD(&ha
->list
);
1439 INIT_LIST_HEAD(&ha
->fcports
);
1440 INIT_LIST_HEAD(&ha
->rscn_fcports
);
1443 * These locks are used to prevent more than one CPU
1444 * from modifying the queue at the same time. The
1445 * higher level "host_lock" will reduce most
1446 * contention for these locks.
1448 spin_lock_init(&ha
->mbx_reg_lock
);
1451 init_completion(&ha
->dpc_inited
);
1452 init_completion(&ha
->dpc_exited
);
1454 qla2x00_config_dma_addressing(ha
);
1455 if (qla2x00_mem_alloc(ha
)) {
1456 qla_printk(KERN_WARNING
, ha
,
1457 "[ERROR] Failed to allocate memory for adapter\n");
1463 if (qla2x00_initialize_adapter(ha
) &&
1464 !(ha
->device_flags
& DFLG_NO_CABLE
)) {
1466 qla_printk(KERN_WARNING
, ha
,
1467 "Failed to initialize adapter\n");
1469 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
1470 "Adapter flags %x.\n",
1471 ha
->host_no
, ha
->device_flags
));
1478 * Startup the kernel thread for this host adapter
1480 ha
->dpc_should_die
= 0;
1481 ha
->dpc_pid
= kernel_thread(qla2x00_do_dpc
, ha
, 0);
1482 if (ha
->dpc_pid
< 0) {
1483 qla_printk(KERN_WARNING
, ha
,
1484 "Unable to start DPC thread!\n");
1489 wait_for_completion(&ha
->dpc_inited
);
1491 host
->this_id
= 255;
1492 host
->cmd_per_lun
= 3;
1493 host
->unique_id
= ha
->instance
;
1494 host
->max_cmd_len
= MAX_CMDSZ
;
1495 host
->max_channel
= ha
->ports
- 1;
1496 host
->max_lun
= MAX_LUNS
;
1497 host
->transportt
= qla2xxx_transport_template
;
1499 ret
= request_irq(pdev
->irq
, ha
->isp_ops
.intr_handler
,
1500 SA_INTERRUPT
|SA_SHIRQ
, ha
->brd_info
->drv_name
, ha
);
1502 qla_printk(KERN_WARNING
, ha
,
1503 "Failed to reserve interrupt %d already in use.\n",
1507 host
->irq
= pdev
->irq
;
1509 /* Initialized the timer */
1510 qla2x00_start_timer(ha
, qla2x00_timer
, WATCH_INTERVAL
);
1512 DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
1515 ha
->isp_ops
.disable_intrs(ha
);
1517 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
1519 if (IS_QLA24XX(ha
) || IS_QLA25XX(ha
)) {
1520 WRT_REG_DWORD(®
->isp24
.hccr
, HCCRX_CLR_HOST_INT
);
1521 WRT_REG_DWORD(®
->isp24
.hccr
, HCCRX_CLR_RISC_INT
);
1523 WRT_REG_WORD(®
->isp
.semaphore
, 0);
1524 WRT_REG_WORD(®
->isp
.hccr
, HCCR_CLR_RISC_INT
);
1525 WRT_REG_WORD(®
->isp
.hccr
, HCCR_CLR_HOST_INT
);
1527 /* Enable proper parity */
1528 if (!IS_QLA2100(ha
) && !IS_QLA2200(ha
)) {
1531 WRT_REG_WORD(®
->isp
.hccr
,
1532 (HCCR_ENABLE_PARITY
+ 0x1));
1534 /* SRAM, Instruction RAM and GP RAM parity */
1535 WRT_REG_WORD(®
->isp
.hccr
,
1536 (HCCR_ENABLE_PARITY
+ 0x7));
1539 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
1541 ha
->isp_ops
.enable_intrs(ha
);
1545 * Wait around max loop_reset_delay secs for the devices to come
1546 * on-line. We don't want Linux scanning before we are ready.
1549 for (wait_switch
= jiffies
+ (ha
->loop_reset_delay
* HZ
);
1550 time_before(jiffies
,wait_switch
) &&
1551 !(ha
->device_flags
& (DFLG_NO_CABLE
| DFLG_FABRIC_DEVICES
))
1552 && (ha
->device_flags
& SWITCH_FOUND
) ;) {
1554 qla2x00_check_fabric_devices(ha
);
1559 pci_set_drvdata(pdev
, ha
);
1560 ha
->flags
.init_done
= 1;
1563 ret
= scsi_add_host(host
, &pdev
->dev
);
1567 qla2x00_alloc_sysfs_attr(ha
);
1569 qla2x00_init_host_attr(ha
);
1571 qla_printk(KERN_INFO
, ha
, "\n"
1572 " QLogic Fibre Channel HBA Driver: %s\n"
1574 " %s: %s @ %s hdma%c, host#=%ld, fw=%s\n", qla2x00_version_str
,
1575 ha
->model_number
, ha
->model_desc
? ha
->model_desc
: "",
1576 ha
->brd_info
->isp_name
, ha
->isp_ops
.pci_info_str(ha
, pci_info
),
1577 pci_name(pdev
), ha
->flags
.enable_64bit_addressing
? '+': '-',
1578 ha
->host_no
, ha
->isp_ops
.fw_version_str(ha
, fw_str
));
1580 /* Go with fc_rport registration. */
1581 list_for_each_entry(fcport
, &ha
->fcports
, list
)
1582 qla2x00_reg_remote_port(ha
, fcport
);
1587 fc_remove_host(ha
->host
);
1589 qla2x00_free_device(ha
);
1591 scsi_host_put(host
);
1593 probe_disable_device
:
1594 pci_disable_device(pdev
);
1599 EXPORT_SYMBOL_GPL(qla2x00_probe_one
);
1601 void qla2x00_remove_one(struct pci_dev
*pdev
)
1603 scsi_qla_host_t
*ha
;
1605 ha
= pci_get_drvdata(pdev
);
1607 qla2x00_free_sysfs_attr(ha
);
1609 fc_remove_host(ha
->host
);
1611 scsi_remove_host(ha
->host
);
1613 qla2x00_free_device(ha
);
1615 scsi_host_put(ha
->host
);
1617 pci_set_drvdata(pdev
, NULL
);
1619 EXPORT_SYMBOL_GPL(qla2x00_remove_one
);
1622 qla2x00_free_device(scsi_qla_host_t
*ha
)
1626 /* Abort any outstanding IO descriptors. */
1627 if (!IS_QLA2100(ha
) && !IS_QLA2200(ha
))
1628 qla2x00_cancel_io_descriptors(ha
);
1630 /* turn-off interrupts on the card */
1631 if (ha
->interrupts_on
)
1632 ha
->isp_ops
.disable_intrs(ha
);
1635 if (ha
->timer_active
)
1636 qla2x00_stop_timer(ha
);
1638 /* Kill the kernel thread for this host */
1639 if (ha
->dpc_pid
>= 0) {
1640 ha
->dpc_should_die
= 1;
1642 ret
= kill_proc(ha
->dpc_pid
, SIGHUP
, 1);
1644 qla_printk(KERN_ERR
, ha
,
1645 "Unable to signal DPC thread -- (%d)\n", ret
);
1647 /* TODO: SOMETHING MORE??? */
1649 wait_for_completion(&ha
->dpc_exited
);
1653 qla2x00_mem_free(ha
);
1656 ha
->flags
.online
= 0;
1658 /* Detach interrupts */
1660 free_irq(ha
->pdev
->irq
, ha
);
1662 /* release io space registers */
1664 iounmap(ha
->iobase
);
1665 pci_release_regions(ha
->pdev
);
1667 pci_disable_device(ha
->pdev
);
1671 * qla2x00_mark_device_lost Updates fcport state when device goes offline.
1673 * Input: ha = adapter block pointer. fcport = port structure pointer.
1679 void qla2x00_mark_device_lost(scsi_qla_host_t
*ha
, fc_port_t
*fcport
,
1682 if (atomic_read(&fcport
->state
) == FCS_ONLINE
&& fcport
->rport
)
1683 fc_remote_port_block(fcport
->rport
);
1685 * We may need to retry the login, so don't change the state of the
1686 * port but do the retries.
1688 if (atomic_read(&fcport
->state
) != FCS_DEVICE_DEAD
)
1689 atomic_set(&fcport
->state
, FCS_DEVICE_LOST
);
1694 if (fcport
->login_retry
== 0) {
1695 fcport
->login_retry
= ha
->login_retry_count
;
1696 set_bit(RELOGIN_NEEDED
, &ha
->dpc_flags
);
1698 DEBUG(printk("scsi(%ld): Port login retry: "
1699 "%02x%02x%02x%02x%02x%02x%02x%02x, "
1700 "id = 0x%04x retry cnt=%d\n",
1702 fcport
->port_name
[0],
1703 fcport
->port_name
[1],
1704 fcport
->port_name
[2],
1705 fcport
->port_name
[3],
1706 fcport
->port_name
[4],
1707 fcport
->port_name
[5],
1708 fcport
->port_name
[6],
1709 fcport
->port_name
[7],
1711 fcport
->login_retry
));
1716 * qla2x00_mark_all_devices_lost
1717 * Updates fcport state when device goes offline.
1720 * ha = adapter block pointer.
1721 * fcport = port structure pointer.
1729 qla2x00_mark_all_devices_lost(scsi_qla_host_t
*ha
)
1733 list_for_each_entry(fcport
, &ha
->fcports
, list
) {
1734 if (fcport
->port_type
!= FCT_TARGET
)
1738 * No point in marking the device as lost, if the device is
1741 if (atomic_read(&fcport
->state
) == FCS_DEVICE_DEAD
)
1743 if (atomic_read(&fcport
->state
) == FCS_ONLINE
&& fcport
->rport
)
1744 fc_remote_port_block(fcport
->rport
);
1745 atomic_set(&fcport
->state
, FCS_DEVICE_LOST
);
1751 * Allocates adapter memory.
1758 qla2x00_mem_alloc(scsi_qla_host_t
*ha
)
1766 * This will loop only once if everything goes well, else some
1767 * number of retries will be performed to get around a kernel
1768 * bug where available mem is not allocated until after a
1769 * little delay and a retry.
1771 ha
->request_ring
= dma_alloc_coherent(&ha
->pdev
->dev
,
1772 (ha
->request_q_length
+ 1) * sizeof(request_t
),
1773 &ha
->request_dma
, GFP_KERNEL
);
1774 if (ha
->request_ring
== NULL
) {
1775 qla_printk(KERN_WARNING
, ha
,
1776 "Memory Allocation failed - request_ring\n");
1778 qla2x00_mem_free(ha
);
1784 ha
->response_ring
= dma_alloc_coherent(&ha
->pdev
->dev
,
1785 (ha
->response_q_length
+ 1) * sizeof(response_t
),
1786 &ha
->response_dma
, GFP_KERNEL
);
1787 if (ha
->response_ring
== NULL
) {
1788 qla_printk(KERN_WARNING
, ha
,
1789 "Memory Allocation failed - response_ring\n");
1791 qla2x00_mem_free(ha
);
1797 ha
->gid_list
= dma_alloc_coherent(&ha
->pdev
->dev
, GID_LIST_SIZE
,
1798 &ha
->gid_list_dma
, GFP_KERNEL
);
1799 if (ha
->gid_list
== NULL
) {
1800 qla_printk(KERN_WARNING
, ha
,
1801 "Memory Allocation failed - gid_list\n");
1803 qla2x00_mem_free(ha
);
1809 ha
->rlc_rsp
= dma_alloc_coherent(&ha
->pdev
->dev
,
1810 sizeof(rpt_lun_cmd_rsp_t
), &ha
->rlc_rsp_dma
, GFP_KERNEL
);
1811 if (ha
->rlc_rsp
== NULL
) {
1812 qla_printk(KERN_WARNING
, ha
,
1813 "Memory Allocation failed - rlc");
1815 qla2x00_mem_free(ha
);
1821 snprintf(name
, sizeof(name
), "qla2xxx_%ld", ha
->host_no
);
1822 ha
->s_dma_pool
= dma_pool_create(name
, &ha
->pdev
->dev
,
1823 DMA_POOL_SIZE
, 8, 0);
1824 if (ha
->s_dma_pool
== NULL
) {
1825 qla_printk(KERN_WARNING
, ha
,
1826 "Memory Allocation failed - s_dma_pool\n");
1828 qla2x00_mem_free(ha
);
1834 /* get consistent memory allocated for init control block */
1835 ha
->init_cb
= dma_pool_alloc(ha
->s_dma_pool
, GFP_KERNEL
,
1837 if (ha
->init_cb
== NULL
) {
1838 qla_printk(KERN_WARNING
, ha
,
1839 "Memory Allocation failed - init_cb\n");
1841 qla2x00_mem_free(ha
);
1846 memset(ha
->init_cb
, 0, ha
->init_cb_size
);
1848 /* Get consistent memory allocated for Get Port Database cmd */
1849 ha
->iodesc_pd
= dma_pool_alloc(ha
->s_dma_pool
, GFP_KERNEL
,
1850 &ha
->iodesc_pd_dma
);
1851 if (ha
->iodesc_pd
== NULL
) {
1853 qla_printk(KERN_WARNING
, ha
,
1854 "Memory Allocation failed - iodesc_pd\n");
1856 qla2x00_mem_free(ha
);
1861 memset(ha
->iodesc_pd
, 0, PORT_DATABASE_SIZE
);
1863 /* Allocate ioctl related memory. */
1864 if (qla2x00_alloc_ioctl_mem(ha
)) {
1865 qla_printk(KERN_WARNING
, ha
,
1866 "Memory Allocation failed - ioctl_mem\n");
1868 qla2x00_mem_free(ha
);
1874 if (qla2x00_allocate_sp_pool(ha
)) {
1875 qla_printk(KERN_WARNING
, ha
,
1876 "Memory Allocation failed - "
1877 "qla2x00_allocate_sp_pool()\n");
1879 qla2x00_mem_free(ha
);
1885 /* Allocate memory for SNS commands */
1886 if (IS_QLA2100(ha
) || IS_QLA2200(ha
)) {
1887 /* Get consistent memory allocated for SNS commands */
1888 ha
->sns_cmd
= dma_alloc_coherent(&ha
->pdev
->dev
,
1889 sizeof(struct sns_cmd_pkt
), &ha
->sns_cmd_dma
,
1891 if (ha
->sns_cmd
== NULL
) {
1893 qla_printk(KERN_WARNING
, ha
,
1894 "Memory Allocation failed - sns_cmd\n");
1896 qla2x00_mem_free(ha
);
1901 memset(ha
->sns_cmd
, 0, sizeof(struct sns_cmd_pkt
));
1903 /* Get consistent memory allocated for MS IOCB */
1904 ha
->ms_iocb
= dma_pool_alloc(ha
->s_dma_pool
, GFP_KERNEL
,
1906 if (ha
->ms_iocb
== NULL
) {
1908 qla_printk(KERN_WARNING
, ha
,
1909 "Memory Allocation failed - ms_iocb\n");
1911 qla2x00_mem_free(ha
);
1916 memset(ha
->ms_iocb
, 0, sizeof(ms_iocb_entry_t
));
1919 * Get consistent memory allocated for CT SNS
1922 ha
->ct_sns
= dma_alloc_coherent(&ha
->pdev
->dev
,
1923 sizeof(struct ct_sns_pkt
), &ha
->ct_sns_dma
,
1925 if (ha
->ct_sns
== NULL
) {
1927 qla_printk(KERN_WARNING
, ha
,
1928 "Memory Allocation failed - ct_sns\n");
1930 qla2x00_mem_free(ha
);
1935 memset(ha
->ct_sns
, 0, sizeof(struct ct_sns_pkt
));
1938 /* Done all allocations without any error. */
1941 } while (retry
-- && status
!= 0);
1945 "%s(): **** FAILED ****\n", __func__
);
1953 * Frees all adapter allocated memory.
1956 * ha = adapter block pointer.
1959 qla2x00_mem_free(scsi_qla_host_t
*ha
)
1961 struct list_head
*fcpl
, *fcptemp
;
1963 unsigned long wtime
;/* max wait time if mbx cmd is busy. */
1967 DEBUG2(printk("%s(): ERROR invalid ha pointer.\n", __func__
));
1971 /* Make sure all other threads are stopped. */
1973 while (ha
->dpc_wait
&& wtime
) {
1974 set_current_state(TASK_INTERRUPTIBLE
);
1975 wtime
= schedule_timeout(wtime
);
1978 /* free ioctl memory */
1979 qla2x00_free_ioctl_mem(ha
);
1982 qla2x00_free_sp_pool(ha
);
1985 dma_free_coherent(&ha
->pdev
->dev
, sizeof(struct sns_cmd_pkt
),
1986 ha
->sns_cmd
, ha
->sns_cmd_dma
);
1989 dma_free_coherent(&ha
->pdev
->dev
, sizeof(struct ct_sns_pkt
),
1990 ha
->ct_sns
, ha
->ct_sns_dma
);
1993 dma_pool_free(ha
->s_dma_pool
, ha
->ms_iocb
, ha
->ms_iocb_dma
);
1996 dma_pool_free(ha
->s_dma_pool
, ha
->iodesc_pd
, ha
->iodesc_pd_dma
);
1999 dma_pool_free(ha
->s_dma_pool
, ha
->init_cb
, ha
->init_cb_dma
);
2002 dma_pool_destroy(ha
->s_dma_pool
);
2005 dma_free_coherent(&ha
->pdev
->dev
,
2006 sizeof(rpt_lun_cmd_rsp_t
), ha
->rlc_rsp
,
2010 dma_free_coherent(&ha
->pdev
->dev
, GID_LIST_SIZE
, ha
->gid_list
,
2013 if (ha
->response_ring
)
2014 dma_free_coherent(&ha
->pdev
->dev
,
2015 (ha
->response_q_length
+ 1) * sizeof(response_t
),
2016 ha
->response_ring
, ha
->response_dma
);
2018 if (ha
->request_ring
)
2019 dma_free_coherent(&ha
->pdev
->dev
,
2020 (ha
->request_q_length
+ 1) * sizeof(request_t
),
2021 ha
->request_ring
, ha
->request_dma
);
2024 ha
->sns_cmd_dma
= 0;
2028 ha
->ms_iocb_dma
= 0;
2029 ha
->iodesc_pd
= NULL
;
2030 ha
->iodesc_pd_dma
= 0;
2032 ha
->init_cb_dma
= 0;
2034 ha
->s_dma_pool
= NULL
;
2037 ha
->rlc_rsp_dma
= 0;
2038 ha
->gid_list
= NULL
;
2039 ha
->gid_list_dma
= 0;
2041 ha
->response_ring
= NULL
;
2042 ha
->response_dma
= 0;
2043 ha
->request_ring
= NULL
;
2044 ha
->request_dma
= 0;
2046 list_for_each_safe(fcpl
, fcptemp
, &ha
->fcports
) {
2047 fcport
= list_entry(fcpl
, fc_port_t
, list
);
2050 list_del_init(&fcport
->list
);
2053 INIT_LIST_HEAD(&ha
->fcports
);
2056 free_pages((unsigned long)ha
->fw_dump
, ha
->fw_dump_order
);
2058 vfree(ha
->fw_dump24
);
2060 vfree(ha
->fw_dump_buffer
);
2063 ha
->fw_dump24
= NULL
;
2065 ha
->fw_dump_reading
= 0;
2066 ha
->fw_dump_buffer
= NULL
;
2070 * qla2x00_allocate_sp_pool
2071 * This routine is called during initialization to allocate
2072 * memory for local srb_t.
2075 * ha = adapter block pointer.
2080 * Note: Sets the ref_count for non Null sp to one.
2083 qla2x00_allocate_sp_pool(scsi_qla_host_t
*ha
)
2088 ha
->srb_mempool
= mempool_create(SRB_MIN_REQ
, mempool_alloc_slab
,
2089 mempool_free_slab
, srb_cachep
);
2090 if (ha
->srb_mempool
== NULL
) {
2091 qla_printk(KERN_INFO
, ha
, "Unable to allocate SRB mempool.\n");
2092 rval
= QLA_FUNCTION_FAILED
;
2098 * This routine frees all adapter allocated memory.
2102 qla2x00_free_sp_pool( scsi_qla_host_t
*ha
)
2104 if (ha
->srb_mempool
) {
2105 mempool_destroy(ha
->srb_mempool
);
2106 ha
->srb_mempool
= NULL
;
2110 /**************************************************************************
2112 * This kernel thread is a task that is schedule by the interrupt handler
2113 * to perform the background processing for interrupts.
2116 * This task always run in the context of a kernel thread. It
2117 * is kick-off by the driver's detect code and starts up
2118 * up one per adapter. It immediately goes to sleep and waits for
2119 * some fibre event. When either the interrupt handler or
2120 * the timer routine detects a event it will one of the task
2121 * bits then wake us up.
2122 **************************************************************************/
2124 qla2x00_do_dpc(void *data
)
2126 DECLARE_MUTEX_LOCKED(sem
);
2127 scsi_qla_host_t
*ha
;
2130 uint16_t next_loopid
;
2132 ha
= (scsi_qla_host_t
*)data
;
2136 daemonize("%s_dpc", ha
->host_str
);
2137 allow_signal(SIGHUP
);
2139 ha
->dpc_wait
= &sem
;
2141 set_user_nice(current
, -20);
2145 complete(&ha
->dpc_inited
);
2148 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
2150 if (down_interruptible(&sem
))
2153 if (ha
->dpc_should_die
)
2156 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
2158 /* Initialization not yet finished. Don't do anything yet. */
2159 if (!ha
->flags
.init_done
|| ha
->dpc_active
)
2162 DEBUG3(printk("scsi(%ld): DPC handler\n", ha
->host_no
));
2166 if (ha
->flags
.mbox_busy
) {
2171 if (test_and_clear_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
)) {
2173 DEBUG(printk("scsi(%ld): dpc: sched "
2174 "qla2x00_abort_isp ha = %p\n",
2176 if (!(test_and_set_bit(ABORT_ISP_ACTIVE
,
2179 if (qla2x00_abort_isp(ha
)) {
2180 /* failed. retry later */
2181 set_bit(ISP_ABORT_NEEDED
,
2184 clear_bit(ABORT_ISP_ACTIVE
, &ha
->dpc_flags
);
2186 DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
2190 if (test_and_clear_bit(RESET_MARKER_NEEDED
, &ha
->dpc_flags
) &&
2191 (!(test_and_set_bit(RESET_ACTIVE
, &ha
->dpc_flags
)))) {
2193 DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
2196 qla2x00_rst_aen(ha
);
2197 clear_bit(RESET_ACTIVE
, &ha
->dpc_flags
);
2200 /* Retry each device up to login retry count */
2201 if ((test_and_clear_bit(RELOGIN_NEEDED
, &ha
->dpc_flags
)) &&
2202 !test_bit(LOOP_RESYNC_NEEDED
, &ha
->dpc_flags
) &&
2203 atomic_read(&ha
->loop_state
) != LOOP_DOWN
) {
2205 DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
2209 list_for_each_entry(fcport
, &ha
->fcports
, list
) {
2210 if (fcport
->port_type
!= FCT_TARGET
)
2214 * If the port is not ONLINE then try to login
2215 * to it if we haven't run out of retries.
2217 if (atomic_read(&fcport
->state
) != FCS_ONLINE
&&
2218 fcport
->login_retry
) {
2220 fcport
->login_retry
--;
2221 if (fcport
->flags
& FCF_FABRIC_DEVICE
) {
2224 ha
->isp_ops
.fabric_logout(
2225 ha
, fcport
->loop_id
,
2226 fcport
->d_id
.b
.domain
,
2227 fcport
->d_id
.b
.area
,
2228 fcport
->d_id
.b
.al_pa
);
2229 status
= qla2x00_fabric_login(
2230 ha
, fcport
, &next_loopid
);
2233 qla2x00_local_device_login(
2234 ha
, fcport
->loop_id
);
2236 if (status
== QLA_SUCCESS
) {
2237 fcport
->old_loop_id
= fcport
->loop_id
;
2239 DEBUG(printk("scsi(%ld): port login OK: logged in ID 0x%x\n",
2240 ha
->host_no
, fcport
->loop_id
));
2242 fcport
->port_login_retry_count
=
2243 ha
->port_down_retry_count
* PORT_RETRY_TIME
;
2244 atomic_set(&fcport
->state
, FCS_ONLINE
);
2245 atomic_set(&fcport
->port_down_timer
,
2246 ha
->port_down_retry_count
* PORT_RETRY_TIME
);
2248 fcport
->login_retry
= 0;
2249 } else if (status
== 1) {
2250 set_bit(RELOGIN_NEEDED
, &ha
->dpc_flags
);
2251 /* retry the login again */
2252 DEBUG(printk("scsi(%ld): Retrying %d login again loop_id 0x%x\n",
2254 fcport
->login_retry
, fcport
->loop_id
));
2256 fcport
->login_retry
= 0;
2259 if (test_bit(LOOP_RESYNC_NEEDED
, &ha
->dpc_flags
))
2262 DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
2266 if ((test_bit(LOGIN_RETRY_NEEDED
, &ha
->dpc_flags
)) &&
2267 atomic_read(&ha
->loop_state
) != LOOP_DOWN
) {
2269 clear_bit(LOGIN_RETRY_NEEDED
, &ha
->dpc_flags
);
2270 DEBUG(printk("scsi(%ld): qla2x00_login_retry()\n",
2273 set_bit(LOOP_RESYNC_NEEDED
, &ha
->dpc_flags
);
2275 DEBUG(printk("scsi(%ld): qla2x00_login_retry - end\n",
2279 if (test_and_clear_bit(LOOP_RESYNC_NEEDED
, &ha
->dpc_flags
)) {
2281 DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
2284 if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE
,
2287 qla2x00_loop_resync(ha
);
2289 clear_bit(LOOP_RESYNC_ACTIVE
, &ha
->dpc_flags
);
2292 DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
2296 if (test_and_clear_bit(FCPORT_RESCAN_NEEDED
, &ha
->dpc_flags
)) {
2298 DEBUG(printk("scsi(%ld): Rescan flagged fcports...\n",
2301 qla2x00_rescan_fcports(ha
);
2303 DEBUG(printk("scsi(%ld): Rescan flagged fcports..."
2308 if (!ha
->interrupts_on
)
2309 ha
->isp_ops
.enable_intrs(ha
);
2312 } /* End of while(1) */
2314 DEBUG(printk("scsi(%ld): DPC handler exiting\n", ha
->host_no
));
2317 * Make sure that nobody tries to wake us up again.
2319 ha
->dpc_wait
= NULL
;
2322 complete_and_exit(&ha
->dpc_exited
, 0);
2327 * Processes asynchronous reset.
2330 * ha = adapter block pointer.
2333 qla2x00_rst_aen(scsi_qla_host_t
*ha
)
2335 if (ha
->flags
.online
&& !ha
->flags
.reset_active
&&
2336 !atomic_read(&ha
->loop_down_timer
) &&
2337 !(test_bit(ABORT_ISP_ACTIVE
, &ha
->dpc_flags
))) {
2339 clear_bit(RESET_MARKER_NEEDED
, &ha
->dpc_flags
);
2342 * Issue marker command only when we are going to start
2345 ha
->marker_needed
= 1;
2346 } while (!atomic_read(&ha
->loop_down_timer
) &&
2347 (test_bit(RESET_MARKER_NEEDED
, &ha
->dpc_flags
)));
2352 qla2x00_sp_free_dma(scsi_qla_host_t
*ha
, srb_t
*sp
)
2354 struct scsi_cmnd
*cmd
= sp
->cmd
;
2356 if (sp
->flags
& SRB_DMA_VALID
) {
2358 dma_unmap_sg(&ha
->pdev
->dev
, cmd
->request_buffer
,
2359 cmd
->use_sg
, cmd
->sc_data_direction
);
2360 } else if (cmd
->request_bufflen
) {
2361 dma_unmap_single(&ha
->pdev
->dev
, sp
->dma_handle
,
2362 cmd
->request_bufflen
, cmd
->sc_data_direction
);
2364 sp
->flags
&= ~SRB_DMA_VALID
;
2370 qla2x00_sp_compl(scsi_qla_host_t
*ha
, srb_t
*sp
)
2372 struct scsi_cmnd
*cmd
= sp
->cmd
;
2374 qla2x00_sp_free_dma(ha
, sp
);
2376 mempool_free(sp
, ha
->srb_mempool
);
2378 cmd
->scsi_done(cmd
);
2381 /**************************************************************************
2387 * Context: Interrupt
2388 ***************************************************************************/
2390 qla2x00_timer(scsi_qla_host_t
*ha
)
2392 unsigned long cpu_flags
= 0;
2400 * Ports - Port down timer.
2402 * Whenever, a port is in the LOST state we start decrementing its port
2403 * down timer every second until it reaches zero. Once it reaches zero
2404 * the port it marked DEAD.
2407 list_for_each_entry(fcport
, &ha
->fcports
, list
) {
2408 if (fcport
->port_type
!= FCT_TARGET
)
2411 if (atomic_read(&fcport
->state
) == FCS_DEVICE_LOST
) {
2413 if (atomic_read(&fcport
->port_down_timer
) == 0)
2416 if (atomic_dec_and_test(&fcport
->port_down_timer
) != 0)
2417 atomic_set(&fcport
->state
, FCS_DEVICE_DEAD
);
2419 DEBUG(printk("scsi(%ld): fcport-%d - port retry count: "
2422 t
, atomic_read(&fcport
->port_down_timer
)));
2425 } /* End of for fcport */
2428 /* Loop down handler. */
2429 if (atomic_read(&ha
->loop_down_timer
) > 0 &&
2430 !(test_bit(ABORT_ISP_ACTIVE
, &ha
->dpc_flags
)) && ha
->flags
.online
) {
2432 if (atomic_read(&ha
->loop_down_timer
) ==
2433 ha
->loop_down_abort_time
) {
2435 DEBUG(printk("scsi(%ld): Loop Down - aborting the "
2436 "queues before time expire\n",
2439 if (!IS_QLA2100(ha
) && ha
->link_down_timeout
)
2440 atomic_set(&ha
->loop_state
, LOOP_DEAD
);
2442 /* Schedule an ISP abort to return any tape commands. */
2443 spin_lock_irqsave(&ha
->hardware_lock
, cpu_flags
);
2444 for (index
= 1; index
< MAX_OUTSTANDING_COMMANDS
;
2448 sp
= ha
->outstanding_cmds
[index
];
2452 if (!(sfcp
->flags
& FCF_TAPE_PRESENT
))
2455 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
2458 spin_unlock_irqrestore(&ha
->hardware_lock
, cpu_flags
);
2460 set_bit(ABORT_QUEUES_NEEDED
, &ha
->dpc_flags
);
2464 /* if the loop has been down for 4 minutes, reinit adapter */
2465 if (atomic_dec_and_test(&ha
->loop_down_timer
) != 0) {
2466 DEBUG(printk("scsi(%ld): Loop down exceed 4 mins - "
2467 "restarting queues.\n",
2470 set_bit(RESTART_QUEUES_NEEDED
, &ha
->dpc_flags
);
2473 if (!(ha
->device_flags
& DFLG_NO_CABLE
)) {
2474 DEBUG(printk("scsi(%ld): Loop down - "
2477 qla_printk(KERN_WARNING
, ha
,
2478 "Loop down - aborting ISP.\n");
2480 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
2483 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
2485 atomic_read(&ha
->loop_down_timer
)));
2488 /* Schedule the DPC routine if needed */
2489 if ((test_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
) ||
2490 test_bit(LOOP_RESYNC_NEEDED
, &ha
->dpc_flags
) ||
2492 test_bit(LOGIN_RETRY_NEEDED
, &ha
->dpc_flags
) ||
2493 test_bit(RESET_MARKER_NEEDED
, &ha
->dpc_flags
) ||
2494 test_bit(RELOGIN_NEEDED
, &ha
->dpc_flags
)) &&
2495 ha
->dpc_wait
&& !ha
->dpc_active
) {
2500 qla2x00_restart_timer(ha
, WATCH_INTERVAL
);
2503 /* XXX(hch): crude hack to emulate a down_timeout() */
2505 qla2x00_down_timeout(struct semaphore
*sema
, unsigned long timeout
)
2507 const unsigned int step
= HZ
/10;
2510 if (!down_trylock(sema
))
2512 set_current_state(TASK_INTERRUPTIBLE
);
2513 if (schedule_timeout(step
))
2515 } while ((timeout
-= step
) > 0);
2520 static struct qla_board_info qla_board_tbl
[] = {
2522 .drv_name
= "qla2400",
2523 .isp_name
= "ISP2422",
2524 .fw_fname
= "ql2400_fw.bin",
2525 .sht
= &qla24xx_driver_template
,
2528 .drv_name
= "qla2400",
2529 .isp_name
= "ISP2432",
2530 .fw_fname
= "ql2400_fw.bin",
2531 .sht
= &qla24xx_driver_template
,
2535 static struct pci_device_id qla2xxx_pci_tbl
[] = {
2537 .vendor
= PCI_VENDOR_ID_QLOGIC
,
2538 .device
= PCI_DEVICE_ID_QLOGIC_ISP2422
,
2539 .subvendor
= PCI_ANY_ID
,
2540 .subdevice
= PCI_ANY_ID
,
2541 .driver_data
= (unsigned long)&qla_board_tbl
[0],
2544 .vendor
= PCI_VENDOR_ID_QLOGIC
,
2545 .device
= PCI_DEVICE_ID_QLOGIC_ISP2432
,
2546 .subvendor
= PCI_ANY_ID
,
2547 .subdevice
= PCI_ANY_ID
,
2548 .driver_data
= (unsigned long)&qla_board_tbl
[1],
2552 MODULE_DEVICE_TABLE(pci
, qla2xxx_pci_tbl
);
2554 static int __devinit
2555 qla2xxx_probe_one(struct pci_dev
*pdev
, const struct pci_device_id
*id
)
2557 return qla2x00_probe_one(pdev
,
2558 (struct qla_board_info
*)id
->driver_data
);
2561 static void __devexit
2562 qla2xxx_remove_one(struct pci_dev
*pdev
)
2564 qla2x00_remove_one(pdev
);
2567 static struct pci_driver qla2xxx_pci_driver
= {
2569 .id_table
= qla2xxx_pci_tbl
,
2570 .probe
= qla2xxx_probe_one
,
2571 .remove
= __devexit_p(qla2xxx_remove_one
),
2575 * qla2x00_module_init - Module initialization.
2578 qla2x00_module_init(void)
2582 /* Allocate cache for SRBs. */
2583 srb_cachep
= kmem_cache_create("qla2xxx_srbs", sizeof(srb_t
), 0,
2584 SLAB_HWCACHE_ALIGN
, NULL
, NULL
);
2585 if (srb_cachep
== NULL
) {
2587 "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
2591 /* Derive version string. */
2592 strcpy(qla2x00_version_str
, QLA2XXX_VERSION
);
2594 strcat(qla2x00_version_str
, "-debug");
2596 qla2xxx_transport_template
=
2597 fc_attach_transport(&qla2xxx_transport_functions
);
2598 if (!qla2xxx_transport_template
)
2601 printk(KERN_INFO
"QLogic Fibre Channel HBA Driver\n");
2602 ret
= pci_module_init(&qla2xxx_pci_driver
);
2604 kmem_cache_destroy(srb_cachep
);
2605 fc_release_transport(qla2xxx_transport_template
);
2611 * qla2x00_module_exit - Module cleanup.
2614 qla2x00_module_exit(void)
2616 pci_unregister_driver(&qla2xxx_pci_driver
);
2617 kmem_cache_destroy(srb_cachep
);
2618 fc_release_transport(qla2xxx_transport_template
);
2621 module_init(qla2x00_module_init
);
2622 module_exit(qla2x00_module_exit
);
2624 MODULE_AUTHOR("QLogic Corporation");
2625 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
2626 MODULE_LICENSE("GPL");
2627 MODULE_VERSION(QLA2XXX_VERSION
);