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,
143 .shost_attrs
= qla2x00_host_attrs
,
146 static struct scsi_host_template qla24xx_driver_template
= {
147 .module
= THIS_MODULE
,
149 .queuecommand
= qla24xx_queuecommand
,
151 .eh_abort_handler
= qla2xxx_eh_abort
,
152 .eh_device_reset_handler
= qla2xxx_eh_device_reset
,
153 .eh_bus_reset_handler
= qla2xxx_eh_bus_reset
,
154 .eh_host_reset_handler
= qla2xxx_eh_host_reset
,
156 .slave_configure
= qla2xxx_slave_configure
,
158 .slave_alloc
= qla2xxx_slave_alloc
,
159 .slave_destroy
= qla2xxx_slave_destroy
,
160 .change_queue_depth
= qla2x00_change_queue_depth
,
161 .change_queue_type
= qla2x00_change_queue_type
,
164 .use_clustering
= ENABLE_CLUSTERING
,
165 .sg_tablesize
= SG_ALL
,
167 .max_sectors
= 0xFFFF,
168 .shost_attrs
= qla2x00_host_attrs
,
171 static struct scsi_transport_template
*qla2xxx_transport_template
= NULL
;
173 /* TODO Convert to inlines
177 #define WATCH_INTERVAL 1 /* number of seconds */
179 static void qla2x00_timer(scsi_qla_host_t
*);
181 static __inline__
void qla2x00_start_timer(scsi_qla_host_t
*,
182 void *, unsigned long);
183 static __inline__
void qla2x00_restart_timer(scsi_qla_host_t
*, unsigned long);
184 static __inline__
void qla2x00_stop_timer(scsi_qla_host_t
*);
187 qla2x00_start_timer(scsi_qla_host_t
*ha
, void *func
, unsigned long interval
)
189 init_timer(&ha
->timer
);
190 ha
->timer
.expires
= jiffies
+ interval
* HZ
;
191 ha
->timer
.data
= (unsigned long)ha
;
192 ha
->timer
.function
= (void (*)(unsigned long))func
;
193 add_timer(&ha
->timer
);
194 ha
->timer_active
= 1;
198 qla2x00_restart_timer(scsi_qla_host_t
*ha
, unsigned long interval
)
200 mod_timer(&ha
->timer
, jiffies
+ interval
* HZ
);
203 static __inline__
void
204 qla2x00_stop_timer(scsi_qla_host_t
*ha
)
206 del_timer_sync(&ha
->timer
);
207 ha
->timer_active
= 0;
210 static int qla2x00_do_dpc(void *data
);
212 static void qla2x00_rst_aen(scsi_qla_host_t
*);
214 static uint8_t qla2x00_mem_alloc(scsi_qla_host_t
*);
215 static void qla2x00_mem_free(scsi_qla_host_t
*ha
);
216 static int qla2x00_allocate_sp_pool( scsi_qla_host_t
*ha
);
217 static void qla2x00_free_sp_pool(scsi_qla_host_t
*ha
);
218 static void qla2x00_sp_free_dma(scsi_qla_host_t
*, srb_t
*);
219 void qla2x00_sp_compl(scsi_qla_host_t
*ha
, srb_t
*);
221 /* -------------------------------------------------------------------------- */
224 qla2x00_pci_info_str(struct scsi_qla_host
*ha
, char *str
)
226 static char *pci_bus_modes
[] = {
227 "33", "66", "100", "133",
232 pci_bus
= (ha
->pci_attr
& (BIT_9
| BIT_10
)) >> 9;
235 strcat(str
, pci_bus_modes
[pci_bus
]);
237 pci_bus
= (ha
->pci_attr
& BIT_8
) >> 8;
239 strcat(str
, pci_bus_modes
[pci_bus
]);
241 strcat(str
, " MHz)");
247 qla24xx_pci_info_str(struct scsi_qla_host
*ha
, char *str
)
249 static char *pci_bus_modes
[] = { "33", "66", "100", "133", };
253 pcie_reg
= pci_find_capability(ha
->pdev
, PCI_CAP_ID_EXP
);
256 uint16_t pcie_lstat
, lspeed
, lwidth
;
259 pci_read_config_word(ha
->pdev
, pcie_reg
, &pcie_lstat
);
260 lspeed
= pcie_lstat
& (BIT_0
| BIT_1
| BIT_2
| BIT_3
);
261 lwidth
= (pcie_lstat
&
262 (BIT_4
| BIT_5
| BIT_6
| BIT_7
| BIT_8
| BIT_9
)) >> 4;
264 strcpy(str
, "PCIe (");
266 strcat(str
, "2.5Gb/s ");
268 strcat(str
, "<unknown> ");
269 snprintf(lwstr
, sizeof(lwstr
), "x%d)", lwidth
);
276 pci_bus
= (ha
->pci_attr
& CSRX_PCIX_BUS_MODE_MASK
) >> 8;
277 if (pci_bus
== 0 || pci_bus
== 8) {
279 strcat(str
, pci_bus_modes
[pci_bus
>> 3]);
283 strcat(str
, "Mode 2");
285 strcat(str
, "Mode 1");
287 strcat(str
, pci_bus_modes
[pci_bus
& ~BIT_2
]);
289 strcat(str
, " MHz)");
295 qla2x00_fw_version_str(struct scsi_qla_host
*ha
, char *str
)
299 sprintf(str
, "%d.%02d.%02d ", ha
->fw_major_version
,
300 ha
->fw_minor_version
,
301 ha
->fw_subminor_version
);
303 if (ha
->fw_attributes
& BIT_9
) {
308 switch (ha
->fw_attributes
& 0xFF) {
322 sprintf(un_str
, "(%x)", ha
->fw_attributes
);
326 if (ha
->fw_attributes
& 0x100)
333 qla24xx_fw_version_str(struct scsi_qla_host
*ha
, char *str
)
335 sprintf(str
, "%d.%02d.%02d ", ha
->fw_major_version
,
336 ha
->fw_minor_version
,
337 ha
->fw_subminor_version
);
339 if (ha
->fw_attributes
& BIT_0
)
340 strcat(str
, "[Class 2] ");
341 if (ha
->fw_attributes
& BIT_1
)
342 strcat(str
, "[IP] ");
343 if (ha
->fw_attributes
& BIT_2
)
344 strcat(str
, "[Multi-ID] ");
345 if (ha
->fw_attributes
& BIT_13
)
346 strcat(str
, "[Experimental]");
350 static inline srb_t
*
351 qla2x00_get_new_sp(scsi_qla_host_t
*ha
, fc_port_t
*fcport
,
352 struct scsi_cmnd
*cmd
, void (*done
)(struct scsi_cmnd
*))
356 sp
= mempool_alloc(ha
->srb_mempool
, GFP_ATOMIC
);
360 atomic_set(&sp
->ref_count
, 1);
365 CMD_SP(cmd
) = (void *)sp
;
366 cmd
->scsi_done
= done
;
372 qla2x00_queuecommand(struct scsi_cmnd
*cmd
, void (*done
)(struct scsi_cmnd
*))
374 scsi_qla_host_t
*ha
= to_qla_host(cmd
->device
->host
);
375 fc_port_t
*fcport
= (struct fc_port
*) cmd
->device
->hostdata
;
380 cmd
->result
= DID_NO_CONNECT
<< 16;
381 goto qc_fail_command
;
384 if (atomic_read(&fcport
->state
) != FCS_ONLINE
) {
385 if (atomic_read(&fcport
->state
) == FCS_DEVICE_DEAD
||
386 atomic_read(&ha
->loop_state
) == LOOP_DEAD
) {
387 cmd
->result
= DID_NO_CONNECT
<< 16;
388 goto qc_fail_command
;
393 spin_unlock_irq(ha
->host
->host_lock
);
395 sp
= qla2x00_get_new_sp(ha
, fcport
, cmd
, done
);
397 goto qc_host_busy_lock
;
399 rval
= qla2x00_start_scsi(sp
);
400 if (rval
!= QLA_SUCCESS
)
401 goto qc_host_busy_free_sp
;
403 /* Manage unprocessed RIO/ZIO commands in response queue. */
404 if (ha
->flags
.online
&& ha
->flags
.process_response_queue
&&
405 ha
->response_ring_ptr
->signature
!= RESPONSE_PROCESSED
) {
408 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
409 qla2x00_process_response_queue(ha
);
410 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
413 spin_lock_irq(ha
->host
->host_lock
);
417 qc_host_busy_free_sp
:
418 qla2x00_sp_free_dma(ha
, sp
);
419 mempool_free(sp
, ha
->srb_mempool
);
422 spin_lock_irq(ha
->host
->host_lock
);
425 return SCSI_MLQUEUE_HOST_BUSY
;
435 qla24xx_queuecommand(struct scsi_cmnd
*cmd
, void (*done
)(struct scsi_cmnd
*))
437 scsi_qla_host_t
*ha
= to_qla_host(cmd
->device
->host
);
438 fc_port_t
*fcport
= (struct fc_port
*) cmd
->device
->hostdata
;
443 cmd
->result
= DID_NO_CONNECT
<< 16;
444 goto qc24_fail_command
;
447 if (atomic_read(&fcport
->state
) != FCS_ONLINE
) {
448 if (atomic_read(&fcport
->state
) == FCS_DEVICE_DEAD
||
449 atomic_read(&ha
->loop_state
) == LOOP_DEAD
) {
450 cmd
->result
= DID_NO_CONNECT
<< 16;
451 goto qc24_fail_command
;
456 spin_unlock_irq(ha
->host
->host_lock
);
458 sp
= qla2x00_get_new_sp(ha
, fcport
, cmd
, done
);
460 goto qc24_host_busy_lock
;
462 rval
= qla24xx_start_scsi(sp
);
463 if (rval
!= QLA_SUCCESS
)
464 goto qc24_host_busy_free_sp
;
466 spin_lock_irq(ha
->host
->host_lock
);
470 qc24_host_busy_free_sp
:
471 qla2x00_sp_free_dma(ha
, sp
);
472 mempool_free(sp
, ha
->srb_mempool
);
475 spin_lock_irq(ha
->host
->host_lock
);
478 return SCSI_MLQUEUE_HOST_BUSY
;
488 * qla2x00_eh_wait_on_command
489 * Waits for the command to be returned by the Firmware for some
493 * ha = actual ha whose done queue will contain the command
494 * returned by firmware.
495 * cmd = Scsi Command to wait on.
496 * flag = Abort/Reset(Bus or Device Reset)
503 qla2x00_eh_wait_on_command(scsi_qla_host_t
*ha
, struct scsi_cmnd
*cmd
)
505 #define ABORT_POLLING_PERIOD 1000
506 #define ABORT_WAIT_ITER ((10 * 1000) / (ABORT_POLLING_PERIOD))
507 unsigned long wait_iter
= ABORT_WAIT_ITER
;
508 int ret
= QLA_SUCCESS
;
510 while (CMD_SP(cmd
)) {
511 msleep(ABORT_POLLING_PERIOD
);
517 ret
= QLA_FUNCTION_FAILED
;
523 * qla2x00_wait_for_hba_online
524 * Wait till the HBA is online after going through
525 * <= MAX_RETRIES_OF_ISP_ABORT or
526 * finally HBA is disabled ie marked offline
529 * ha - pointer to host adapter structure
532 * Does context switching-Release SPIN_LOCK
533 * (if any) before calling this routine.
536 * Success (Adapter is online) : 0
537 * Failed (Adapter is offline/disabled) : 1
540 qla2x00_wait_for_hba_online(scsi_qla_host_t
*ha
)
543 unsigned long wait_online
;
545 wait_online
= jiffies
+ (MAX_LOOP_TIMEOUT
* HZ
);
546 while (((test_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
)) ||
547 test_bit(ABORT_ISP_ACTIVE
, &ha
->dpc_flags
) ||
548 test_bit(ISP_ABORT_RETRY
, &ha
->dpc_flags
) ||
549 ha
->dpc_active
) && time_before(jiffies
, wait_online
)) {
553 if (ha
->flags
.online
)
554 return_status
= QLA_SUCCESS
;
556 return_status
= QLA_FUNCTION_FAILED
;
558 DEBUG2(printk("%s return_status=%d\n",__func__
,return_status
));
560 return (return_status
);
564 * qla2x00_wait_for_loop_ready
565 * Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
566 * to be in LOOP_READY state.
568 * ha - pointer to host adapter structure
571 * Does context switching-Release SPIN_LOCK
572 * (if any) before calling this routine.
576 * Success (LOOP_READY) : 0
577 * Failed (LOOP_NOT_READY) : 1
580 qla2x00_wait_for_loop_ready(scsi_qla_host_t
*ha
)
582 int return_status
= QLA_SUCCESS
;
583 unsigned long loop_timeout
;
585 /* wait for 5 min at the max for loop to be ready */
586 loop_timeout
= jiffies
+ (MAX_LOOP_TIMEOUT
* HZ
);
588 while ((!atomic_read(&ha
->loop_down_timer
) &&
589 atomic_read(&ha
->loop_state
) == LOOP_DOWN
) ||
590 atomic_read(&ha
->loop_state
) != LOOP_READY
) {
592 if (time_after_eq(jiffies
, loop_timeout
)) {
593 return_status
= QLA_FUNCTION_FAILED
;
597 return (return_status
);
600 /**************************************************************************
604 * The abort function will abort the specified command.
607 * cmd = Linux SCSI command packet to be aborted.
610 * Either SUCCESS or FAILED.
613 **************************************************************************/
615 qla2xxx_eh_abort(struct scsi_cmnd
*cmd
)
617 scsi_qla_host_t
*ha
= to_qla_host(cmd
->device
->host
);
620 unsigned int id
, lun
;
621 unsigned long serial
;
629 id
= cmd
->device
->id
;
630 lun
= cmd
->device
->lun
;
631 serial
= cmd
->serial_number
;
633 /* Check active list for command command. */
634 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
635 for (i
= 1; i
< MAX_OUTSTANDING_COMMANDS
; i
++) {
636 sp
= ha
->outstanding_cmds
[i
];
644 DEBUG2(printk("%s(%ld): aborting sp %p from RISC. pid=%ld "
645 "sp->state=%x\n", __func__
, ha
->host_no
, sp
, serial
,
647 DEBUG3(qla2x00_print_scsi_cmd(cmd
);)
649 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
650 if (ha
->isp_ops
.abort_command(ha
, sp
)) {
651 DEBUG2(printk("%s(%ld): abort_command "
652 "mbx failed.\n", __func__
, ha
->host_no
));
654 DEBUG3(printk("%s(%ld): abort_command "
655 "mbx success.\n", __func__
, ha
->host_no
));
658 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
662 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
664 /* Wait for the command to be returned. */
665 if (ret
== SUCCESS
) {
666 if (qla2x00_eh_wait_on_command(ha
, cmd
) != QLA_SUCCESS
) {
667 qla_printk(KERN_ERR
, ha
,
668 "scsi(%ld:%d:%d): Abort handler timed out -- %lx "
669 "%x.\n", ha
->host_no
, id
, lun
, serial
, ret
);
673 qla_printk(KERN_INFO
, ha
,
674 "scsi(%ld:%d:%d): Abort command issued -- %lx %x.\n", ha
->host_no
,
675 id
, lun
, serial
, ret
);
680 /**************************************************************************
681 * qla2x00_eh_wait_for_pending_target_commands
684 * Waits for all the commands to come back from the specified target.
687 * ha - pointer to scsi_qla_host structure.
690 * Either SUCCESS or FAILED.
693 **************************************************************************/
695 qla2x00_eh_wait_for_pending_target_commands(scsi_qla_host_t
*ha
, unsigned int t
)
700 struct scsi_cmnd
*cmd
;
706 * Waiting for all commands for the designated target in the active
709 for (cnt
= 1; cnt
< MAX_OUTSTANDING_COMMANDS
; cnt
++) {
710 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
711 sp
= ha
->outstanding_cmds
[cnt
];
714 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
715 if (cmd
->device
->id
== t
) {
716 if (!qla2x00_eh_wait_on_command(ha
, cmd
)) {
722 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
729 /**************************************************************************
730 * qla2xxx_eh_device_reset
733 * The device reset function will reset the target and abort any
734 * executing commands.
736 * NOTE: The use of SP is undefined within this context. Do *NOT*
737 * attempt to use this value, even if you determine it is
741 * cmd = Linux SCSI command packet of the command that cause the
745 * SUCCESS/FAILURE (defined as macro in scsi.h).
747 **************************************************************************/
749 qla2xxx_eh_device_reset(struct scsi_cmnd
*cmd
)
751 scsi_qla_host_t
*ha
= to_qla_host(cmd
->device
->host
);
752 fc_port_t
*fcport
= (struct fc_port
*) cmd
->device
->hostdata
;
755 unsigned int id
, lun
;
756 unsigned long serial
;
760 id
= cmd
->device
->id
;
761 lun
= cmd
->device
->lun
;
762 serial
= cmd
->serial_number
;
764 sp
= (srb_t
*) CMD_SP(cmd
);
768 qla_printk(KERN_INFO
, ha
,
769 "scsi(%ld:%d:%d): DEVICE RESET ISSUED.\n", ha
->host_no
, id
, lun
);
771 if (qla2x00_wait_for_hba_online(ha
) != QLA_SUCCESS
)
772 goto eh_dev_reset_done
;
774 if (qla2x00_wait_for_loop_ready(ha
) == QLA_SUCCESS
) {
775 if (qla2x00_device_reset(ha
, fcport
) == 0)
778 #if defined(LOGOUT_AFTER_DEVICE_RESET)
779 if (ret
== SUCCESS
) {
780 if (fcport
->flags
& FC_FABRIC_DEVICE
) {
781 ha
->isp_ops
.fabric_logout(ha
, fcport
->loop_id
);
782 qla2x00_mark_device_lost(ha
, fcport
);
787 DEBUG2(printk(KERN_INFO
788 "%s failed: loop not ready\n",__func__
);)
792 DEBUG3(printk("%s(%ld): device reset failed\n",
793 __func__
, ha
->host_no
));
794 qla_printk(KERN_INFO
, ha
, "%s: device reset failed\n",
797 goto eh_dev_reset_done
;
801 * If we are coming down the EH path, wait for all commands to
802 * complete for the device.
804 if (cmd
->device
->host
->eh_active
) {
805 if (qla2x00_eh_wait_for_pending_target_commands(ha
, id
))
809 DEBUG3(printk("%s(%ld): failed while waiting for "
810 "commands\n", __func__
, ha
->host_no
));
811 qla_printk(KERN_INFO
, ha
,
812 "%s: failed while waiting for commands\n",
815 goto eh_dev_reset_done
;
819 qla_printk(KERN_INFO
, ha
,
820 "scsi(%ld:%d:%d): DEVICE RESET SUCCEEDED.\n", ha
->host_no
, id
, lun
);
826 /**************************************************************************
827 * qla2x00_eh_wait_for_pending_commands
830 * Waits for all the commands to come back from the specified host.
833 * ha - pointer to scsi_qla_host structure.
840 **************************************************************************/
842 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t
*ha
)
847 struct scsi_cmnd
*cmd
;
853 * Waiting for all commands for the designated target in the active
856 for (cnt
= 1; cnt
< MAX_OUTSTANDING_COMMANDS
; cnt
++) {
857 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
858 sp
= ha
->outstanding_cmds
[cnt
];
861 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
862 status
= qla2x00_eh_wait_on_command(ha
, cmd
);
867 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
874 /**************************************************************************
875 * qla2xxx_eh_bus_reset
878 * The bus reset function will reset the bus and abort any executing
882 * cmd = Linux SCSI command packet of the command that cause the
886 * SUCCESS/FAILURE (defined as macro in scsi.h).
888 **************************************************************************/
890 qla2xxx_eh_bus_reset(struct scsi_cmnd
*cmd
)
892 scsi_qla_host_t
*ha
= to_qla_host(cmd
->device
->host
);
893 fc_port_t
*fcport
= (struct fc_port
*) cmd
->device
->hostdata
;
896 unsigned int id
, lun
;
897 unsigned long serial
;
901 id
= cmd
->device
->id
;
902 lun
= cmd
->device
->lun
;
903 serial
= cmd
->serial_number
;
905 sp
= (srb_t
*) CMD_SP(cmd
);
909 qla_printk(KERN_INFO
, ha
,
910 "scsi(%ld:%d:%d): LOOP RESET ISSUED.\n", ha
->host_no
, id
, lun
);
912 if (qla2x00_wait_for_hba_online(ha
) != QLA_SUCCESS
) {
913 DEBUG2(printk("%s failed:board disabled\n",__func__
));
914 goto eh_bus_reset_done
;
917 if (qla2x00_wait_for_loop_ready(ha
) == QLA_SUCCESS
) {
918 if (qla2x00_loop_reset(ha
) == QLA_SUCCESS
)
922 goto eh_bus_reset_done
;
924 /* Waiting for our command in done_queue to be returned to OS.*/
925 if (cmd
->device
->host
->eh_active
)
926 if (!qla2x00_eh_wait_for_pending_commands(ha
))
930 qla_printk(KERN_INFO
, ha
, "%s: reset %s\n", __func__
,
931 (ret
== FAILED
) ? "failed" : "succeded");
936 /**************************************************************************
937 * qla2xxx_eh_host_reset
940 * The reset function will reset the Adapter.
943 * cmd = Linux SCSI command packet of the command that cause the
947 * Either SUCCESS or FAILED.
950 **************************************************************************/
952 qla2xxx_eh_host_reset(struct scsi_cmnd
*cmd
)
954 scsi_qla_host_t
*ha
= to_qla_host(cmd
->device
->host
);
955 fc_port_t
*fcport
= (struct fc_port
*) cmd
->device
->hostdata
;
958 unsigned int id
, lun
;
959 unsigned long serial
;
963 id
= cmd
->device
->id
;
964 lun
= cmd
->device
->lun
;
965 serial
= cmd
->serial_number
;
967 sp
= (srb_t
*) CMD_SP(cmd
);
971 qla_printk(KERN_INFO
, ha
,
972 "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", ha
->host_no
, id
, lun
);
974 if (qla2x00_wait_for_hba_online(ha
) != QLA_SUCCESS
)
975 goto eh_host_reset_lock
;
978 * Fixme-may be dpc thread is active and processing
979 * loop_resync,so wait a while for it to
980 * be completed and then issue big hammer.Otherwise
981 * it may cause I/O failure as big hammer marks the
982 * devices as lost kicking of the port_down_timer
983 * while dpc is stuck for the mailbox to complete.
985 qla2x00_wait_for_loop_ready(ha
);
986 set_bit(ABORT_ISP_ACTIVE
, &ha
->dpc_flags
);
987 if (qla2x00_abort_isp(ha
)) {
988 clear_bit(ABORT_ISP_ACTIVE
, &ha
->dpc_flags
);
989 /* failed. schedule dpc to try */
990 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
992 if (qla2x00_wait_for_hba_online(ha
) != QLA_SUCCESS
)
993 goto eh_host_reset_lock
;
995 clear_bit(ABORT_ISP_ACTIVE
, &ha
->dpc_flags
);
997 /* Waiting for our command in done_queue to be returned to OS.*/
998 if (qla2x00_eh_wait_for_pending_commands(ha
))
1002 qla_printk(KERN_INFO
, ha
, "%s: reset %s\n", __func__
,
1003 (ret
== FAILED
) ? "failed" : "succeded");
1009 * qla2x00_loop_reset
1013 * ha = adapter block pointer.
1019 qla2x00_loop_reset(scsi_qla_host_t
*ha
)
1021 int status
= QLA_SUCCESS
;
1022 struct fc_port
*fcport
;
1024 if (ha
->flags
.enable_lip_reset
) {
1025 status
= qla2x00_lip_reset(ha
);
1028 if (status
== QLA_SUCCESS
&& ha
->flags
.enable_target_reset
) {
1029 list_for_each_entry(fcport
, &ha
->fcports
, list
) {
1030 if (fcport
->port_type
!= FCT_TARGET
)
1033 status
= qla2x00_device_reset(ha
, fcport
);
1034 if (status
!= QLA_SUCCESS
)
1039 if (status
== QLA_SUCCESS
&&
1040 ((!ha
->flags
.enable_target_reset
&&
1041 !ha
->flags
.enable_lip_reset
) ||
1042 ha
->flags
.enable_lip_full_login
)) {
1044 status
= qla2x00_full_login_lip(ha
);
1047 /* Issue marker command only when we are going to start the I/O */
1048 ha
->marker_needed
= 1;
1052 DEBUG2_3(printk("%s(%ld): **** FAILED ****\n",
1057 DEBUG3(printk("%s(%ld): exiting normally.\n",
1066 * qla2x00_device_reset
1067 * Issue bus device reset message to the target.
1070 * ha = adapter block pointer.
1072 * TARGET_QUEUE_LOCK must be released.
1073 * ADAPTER_STATE_LOCK must be released.
1079 qla2x00_device_reset(scsi_qla_host_t
*ha
, fc_port_t
*reset_fcport
)
1081 /* Abort Target command will clear Reservation */
1082 return ha
->isp_ops
.abort_target(reset_fcport
);
1086 qla2xxx_slave_alloc(struct scsi_device
*sdev
)
1088 struct fc_rport
*rport
= starget_to_rport(scsi_target(sdev
));
1093 sdev
->hostdata
= rport
->dd_data
;
1099 qla2xxx_slave_configure(struct scsi_device
*sdev
)
1101 scsi_qla_host_t
*ha
= to_qla_host(sdev
->host
);
1102 struct fc_rport
*rport
= starget_to_rport(sdev
->sdev_target
);
1104 if (sdev
->tagged_supported
)
1105 scsi_activate_tcq(sdev
, 32);
1107 scsi_deactivate_tcq(sdev
, 32);
1109 rport
->dev_loss_tmo
= ha
->port_down_retry_count
+ 5;
1115 qla2xxx_slave_destroy(struct scsi_device
*sdev
)
1117 sdev
->hostdata
= NULL
;
1121 qla2x00_change_queue_depth(struct scsi_device
*sdev
, int qdepth
)
1123 scsi_adjust_queue_depth(sdev
, scsi_get_tag_type(sdev
), qdepth
);
1124 return sdev
->queue_depth
;
1128 qla2x00_change_queue_type(struct scsi_device
*sdev
, int tag_type
)
1130 if (sdev
->tagged_supported
) {
1131 scsi_set_tag_type(sdev
, tag_type
);
1133 scsi_activate_tcq(sdev
, sdev
->queue_depth
);
1135 scsi_deactivate_tcq(sdev
, sdev
->queue_depth
);
1143 * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1146 * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1147 * supported addressing method.
1150 qla2x00_config_dma_addressing(scsi_qla_host_t
*ha
)
1152 /* Assume a 32bit DMA mask. */
1153 ha
->flags
.enable_64bit_addressing
= 0;
1155 if (!dma_set_mask(&ha
->pdev
->dev
, DMA_64BIT_MASK
)) {
1156 /* Any upper-dword bits set? */
1157 if (MSD(dma_get_required_mask(&ha
->pdev
->dev
)) &&
1158 !pci_set_consistent_dma_mask(ha
->pdev
, DMA_64BIT_MASK
)) {
1159 /* Ok, a 64bit DMA mask is applicable. */
1160 ha
->flags
.enable_64bit_addressing
= 1;
1161 ha
->isp_ops
.calc_req_entries
= qla2x00_calc_iocbs_64
;
1162 ha
->isp_ops
.build_iocbs
= qla2x00_build_scsi_iocbs_64
;
1167 dma_set_mask(&ha
->pdev
->dev
, DMA_32BIT_MASK
);
1168 pci_set_consistent_dma_mask(ha
->pdev
, DMA_32BIT_MASK
);
1172 qla2x00_iospace_config(scsi_qla_host_t
*ha
)
1174 unsigned long pio
, pio_len
, pio_flags
;
1175 unsigned long mmio
, mmio_len
, mmio_flags
;
1177 /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1178 pio
= pci_resource_start(ha
->pdev
, 0);
1179 pio_len
= pci_resource_len(ha
->pdev
, 0);
1180 pio_flags
= pci_resource_flags(ha
->pdev
, 0);
1181 if (pio_flags
& IORESOURCE_IO
) {
1182 if (pio_len
< MIN_IOBASE_LEN
) {
1183 qla_printk(KERN_WARNING
, ha
,
1184 "Invalid PCI I/O region size (%s)...\n",
1185 pci_name(ha
->pdev
));
1189 qla_printk(KERN_WARNING
, ha
,
1190 "region #0 not a PIO resource (%s)...\n",
1191 pci_name(ha
->pdev
));
1195 /* Use MMIO operations for all accesses. */
1196 mmio
= pci_resource_start(ha
->pdev
, 1);
1197 mmio_len
= pci_resource_len(ha
->pdev
, 1);
1198 mmio_flags
= pci_resource_flags(ha
->pdev
, 1);
1200 if (!(mmio_flags
& IORESOURCE_MEM
)) {
1201 qla_printk(KERN_ERR
, ha
,
1202 "region #0 not an MMIO resource (%s), aborting\n",
1203 pci_name(ha
->pdev
));
1204 goto iospace_error_exit
;
1206 if (mmio_len
< MIN_IOBASE_LEN
) {
1207 qla_printk(KERN_ERR
, ha
,
1208 "Invalid PCI mem region size (%s), aborting\n",
1209 pci_name(ha
->pdev
));
1210 goto iospace_error_exit
;
1213 if (pci_request_regions(ha
->pdev
, ha
->brd_info
->drv_name
)) {
1214 qla_printk(KERN_WARNING
, ha
,
1215 "Failed to reserve PIO/MMIO regions (%s)\n",
1216 pci_name(ha
->pdev
));
1218 goto iospace_error_exit
;
1221 ha
->pio_address
= pio
;
1222 ha
->pio_length
= pio_len
;
1223 ha
->iobase
= ioremap(mmio
, MIN_IOBASE_LEN
);
1225 qla_printk(KERN_ERR
, ha
,
1226 "cannot remap MMIO (%s), aborting\n", pci_name(ha
->pdev
));
1228 goto iospace_error_exit
;
1238 qla2x00_enable_intrs(scsi_qla_host_t
*ha
)
1240 unsigned long flags
= 0;
1241 struct device_reg_2xxx __iomem
*reg
= &ha
->iobase
->isp
;
1243 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
1244 ha
->interrupts_on
= 1;
1245 /* enable risc and host interrupts */
1246 WRT_REG_WORD(®
->ictrl
, ICR_EN_INT
| ICR_EN_RISC
);
1247 RD_REG_WORD(®
->ictrl
);
1248 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
1253 qla2x00_disable_intrs(scsi_qla_host_t
*ha
)
1255 unsigned long flags
= 0;
1256 struct device_reg_2xxx __iomem
*reg
= &ha
->iobase
->isp
;
1258 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
1259 ha
->interrupts_on
= 0;
1260 /* disable risc and host interrupts */
1261 WRT_REG_WORD(®
->ictrl
, 0);
1262 RD_REG_WORD(®
->ictrl
);
1263 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
1267 qla24xx_enable_intrs(scsi_qla_host_t
*ha
)
1269 unsigned long flags
= 0;
1270 struct device_reg_24xx __iomem
*reg
= &ha
->iobase
->isp24
;
1272 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
1273 ha
->interrupts_on
= 1;
1274 WRT_REG_DWORD(®
->ictrl
, ICRX_EN_RISC_INT
);
1275 RD_REG_DWORD(®
->ictrl
);
1276 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
1280 qla24xx_disable_intrs(scsi_qla_host_t
*ha
)
1282 unsigned long flags
= 0;
1283 struct device_reg_24xx __iomem
*reg
= &ha
->iobase
->isp24
;
1285 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
1286 ha
->interrupts_on
= 0;
1287 WRT_REG_DWORD(®
->ictrl
, 0);
1288 RD_REG_DWORD(®
->ictrl
);
1289 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
1293 * PCI driver interface
1295 int qla2x00_probe_one(struct pci_dev
*pdev
, struct qla_board_info
*brd_info
)
1298 device_reg_t __iomem
*reg
;
1299 struct Scsi_Host
*host
;
1300 scsi_qla_host_t
*ha
;
1301 unsigned long flags
= 0;
1302 unsigned long wait_switch
= 0;
1307 if (pci_enable_device(pdev
))
1310 host
= scsi_host_alloc(brd_info
->sht
? brd_info
->sht
:
1311 &qla2x00_driver_template
, sizeof(scsi_qla_host_t
));
1314 "qla2xxx: Couldn't allocate host from scsi layer!\n");
1315 goto probe_disable_device
;
1318 /* Clear our data area */
1319 ha
= (scsi_qla_host_t
*)host
->hostdata
;
1320 memset(ha
, 0, sizeof(scsi_qla_host_t
));
1324 ha
->host_no
= host
->host_no
;
1325 ha
->brd_info
= brd_info
;
1326 sprintf(ha
->host_str
, "%s_%ld", ha
->brd_info
->drv_name
, ha
->host_no
);
1330 /* Configure PCI I/O space */
1331 ret
= qla2x00_iospace_config(ha
);
1335 qla_printk(KERN_INFO
, ha
,
1336 "Found an %s, irq %d, iobase 0x%p\n", ha
->brd_info
->isp_name
,
1337 pdev
->irq
, ha
->iobase
);
1339 spin_lock_init(&ha
->hardware_lock
);
1341 ha
->prev_topology
= 0;
1342 ha
->ports
= MAX_BUSES
;
1343 ha
->init_cb_size
= sizeof(init_cb_t
);
1344 ha
->mgmt_svr_loop_id
= MANAGEMENT_SERVER
;
1346 /* Assign ISP specific operations. */
1347 ha
->isp_ops
.pci_config
= qla2100_pci_config
;
1348 ha
->isp_ops
.reset_chip
= qla2x00_reset_chip
;
1349 ha
->isp_ops
.chip_diag
= qla2x00_chip_diag
;
1350 ha
->isp_ops
.config_rings
= qla2x00_config_rings
;
1351 ha
->isp_ops
.reset_adapter
= qla2x00_reset_adapter
;
1352 ha
->isp_ops
.nvram_config
= qla2x00_nvram_config
;
1353 ha
->isp_ops
.update_fw_options
= qla2x00_update_fw_options
;
1354 ha
->isp_ops
.load_risc
= qla2x00_load_risc
;
1355 ha
->isp_ops
.pci_info_str
= qla2x00_pci_info_str
;
1356 ha
->isp_ops
.fw_version_str
= qla2x00_fw_version_str
;
1357 ha
->isp_ops
.intr_handler
= qla2100_intr_handler
;
1358 ha
->isp_ops
.enable_intrs
= qla2x00_enable_intrs
;
1359 ha
->isp_ops
.disable_intrs
= qla2x00_disable_intrs
;
1360 ha
->isp_ops
.abort_command
= qla2x00_abort_command
;
1361 ha
->isp_ops
.abort_target
= qla2x00_abort_target
;
1362 ha
->isp_ops
.fabric_login
= qla2x00_login_fabric
;
1363 ha
->isp_ops
.fabric_logout
= qla2x00_fabric_logout
;
1364 ha
->isp_ops
.calc_req_entries
= qla2x00_calc_iocbs_32
;
1365 ha
->isp_ops
.build_iocbs
= qla2x00_build_scsi_iocbs_32
;
1366 ha
->isp_ops
.prep_ms_iocb
= qla2x00_prep_ms_iocb
;
1367 ha
->isp_ops
.prep_ms_fdmi_iocb
= qla2x00_prep_ms_fdmi_iocb
;
1368 ha
->isp_ops
.read_nvram
= qla2x00_read_nvram_data
;
1369 ha
->isp_ops
.write_nvram
= qla2x00_write_nvram_data
;
1370 ha
->isp_ops
.fw_dump
= qla2100_fw_dump
;
1371 ha
->isp_ops
.ascii_fw_dump
= qla2100_ascii_fw_dump
;
1372 if (IS_QLA2100(ha
)) {
1373 host
->max_id
= MAX_TARGETS_2100
;
1374 ha
->mbx_count
= MAILBOX_REGISTER_COUNT_2100
;
1375 ha
->request_q_length
= REQUEST_ENTRY_CNT_2100
;
1376 ha
->response_q_length
= RESPONSE_ENTRY_CNT_2100
;
1377 ha
->last_loop_id
= SNS_LAST_LOOP_ID_2100
;
1378 host
->sg_tablesize
= 32;
1379 ha
->gid_list_info_size
= 4;
1380 } else if (IS_QLA2200(ha
)) {
1381 host
->max_id
= MAX_TARGETS_2200
;
1382 ha
->mbx_count
= MAILBOX_REGISTER_COUNT
;
1383 ha
->request_q_length
= REQUEST_ENTRY_CNT_2200
;
1384 ha
->response_q_length
= RESPONSE_ENTRY_CNT_2100
;
1385 ha
->last_loop_id
= SNS_LAST_LOOP_ID_2100
;
1386 ha
->gid_list_info_size
= 4;
1387 } else if (IS_QLA23XX(ha
)) {
1388 host
->max_id
= MAX_TARGETS_2200
;
1389 ha
->mbx_count
= MAILBOX_REGISTER_COUNT
;
1390 ha
->request_q_length
= REQUEST_ENTRY_CNT_2200
;
1391 ha
->response_q_length
= RESPONSE_ENTRY_CNT_2300
;
1392 ha
->last_loop_id
= SNS_LAST_LOOP_ID_2300
;
1393 ha
->isp_ops
.pci_config
= qla2300_pci_config
;
1394 ha
->isp_ops
.intr_handler
= qla2300_intr_handler
;
1395 ha
->isp_ops
.fw_dump
= qla2300_fw_dump
;
1396 ha
->isp_ops
.ascii_fw_dump
= qla2300_ascii_fw_dump
;
1397 ha
->gid_list_info_size
= 6;
1398 } else if (IS_QLA24XX(ha
) || IS_QLA25XX(ha
)) {
1399 host
->max_id
= MAX_TARGETS_2200
;
1400 ha
->mbx_count
= MAILBOX_REGISTER_COUNT
;
1401 ha
->request_q_length
= REQUEST_ENTRY_CNT_24XX
;
1402 ha
->response_q_length
= RESPONSE_ENTRY_CNT_2300
;
1403 ha
->last_loop_id
= SNS_LAST_LOOP_ID_2300
;
1404 ha
->init_cb_size
= sizeof(struct init_cb_24xx
);
1405 ha
->mgmt_svr_loop_id
= 10;
1406 ha
->isp_ops
.pci_config
= qla24xx_pci_config
;
1407 ha
->isp_ops
.reset_chip
= qla24xx_reset_chip
;
1408 ha
->isp_ops
.chip_diag
= qla24xx_chip_diag
;
1409 ha
->isp_ops
.config_rings
= qla24xx_config_rings
;
1410 ha
->isp_ops
.reset_adapter
= qla24xx_reset_adapter
;
1411 ha
->isp_ops
.nvram_config
= qla24xx_nvram_config
;
1412 ha
->isp_ops
.update_fw_options
= qla24xx_update_fw_options
;
1413 ha
->isp_ops
.load_risc
= qla24xx_load_risc_flash
;
1415 ha
->isp_ops
.load_risc
= qla24xx_load_risc_hotplug
;
1416 ha
->isp_ops
.pci_info_str
= qla24xx_pci_info_str
;
1417 ha
->isp_ops
.fw_version_str
= qla24xx_fw_version_str
;
1418 ha
->isp_ops
.intr_handler
= qla24xx_intr_handler
;
1419 ha
->isp_ops
.enable_intrs
= qla24xx_enable_intrs
;
1420 ha
->isp_ops
.disable_intrs
= qla24xx_disable_intrs
;
1421 ha
->isp_ops
.abort_command
= qla24xx_abort_command
;
1422 ha
->isp_ops
.abort_target
= qla24xx_abort_target
;
1423 ha
->isp_ops
.fabric_login
= qla24xx_login_fabric
;
1424 ha
->isp_ops
.fabric_logout
= qla24xx_fabric_logout
;
1425 ha
->isp_ops
.prep_ms_iocb
= qla24xx_prep_ms_iocb
;
1426 ha
->isp_ops
.prep_ms_fdmi_iocb
= qla24xx_prep_ms_fdmi_iocb
;
1427 ha
->isp_ops
.read_nvram
= qla24xx_read_nvram_data
;
1428 ha
->isp_ops
.write_nvram
= qla24xx_write_nvram_data
;
1429 ha
->isp_ops
.fw_dump
= qla24xx_fw_dump
;
1430 ha
->isp_ops
.ascii_fw_dump
= qla24xx_ascii_fw_dump
;
1431 ha
->gid_list_info_size
= 8;
1433 host
->can_queue
= ha
->request_q_length
+ 128;
1435 /* load the F/W, read paramaters, and init the H/W */
1436 ha
->instance
= num_hosts
;
1438 init_MUTEX(&ha
->mbx_cmd_sem
);
1439 init_MUTEX_LOCKED(&ha
->mbx_intr_sem
);
1441 INIT_LIST_HEAD(&ha
->list
);
1442 INIT_LIST_HEAD(&ha
->fcports
);
1443 INIT_LIST_HEAD(&ha
->rscn_fcports
);
1446 * These locks are used to prevent more than one CPU
1447 * from modifying the queue at the same time. The
1448 * higher level "host_lock" will reduce most
1449 * contention for these locks.
1451 spin_lock_init(&ha
->mbx_reg_lock
);
1453 init_completion(&ha
->dpc_inited
);
1454 init_completion(&ha
->dpc_exited
);
1456 qla2x00_config_dma_addressing(ha
);
1457 if (qla2x00_mem_alloc(ha
)) {
1458 qla_printk(KERN_WARNING
, ha
,
1459 "[ERROR] Failed to allocate memory for adapter\n");
1465 if (qla2x00_initialize_adapter(ha
) &&
1466 !(ha
->device_flags
& DFLG_NO_CABLE
)) {
1468 qla_printk(KERN_WARNING
, ha
,
1469 "Failed to initialize adapter\n");
1471 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
1472 "Adapter flags %x.\n",
1473 ha
->host_no
, ha
->device_flags
));
1480 * Startup the kernel thread for this host adapter
1482 ha
->dpc_should_die
= 0;
1483 ha
->dpc_pid
= kernel_thread(qla2x00_do_dpc
, ha
, 0);
1484 if (ha
->dpc_pid
< 0) {
1485 qla_printk(KERN_WARNING
, ha
,
1486 "Unable to start DPC thread!\n");
1491 wait_for_completion(&ha
->dpc_inited
);
1493 host
->this_id
= 255;
1494 host
->cmd_per_lun
= 3;
1495 host
->unique_id
= ha
->instance
;
1496 host
->max_cmd_len
= MAX_CMDSZ
;
1497 host
->max_channel
= ha
->ports
- 1;
1498 host
->max_lun
= MAX_LUNS
;
1499 host
->transportt
= qla2xxx_transport_template
;
1501 ret
= request_irq(pdev
->irq
, ha
->isp_ops
.intr_handler
,
1502 SA_INTERRUPT
|SA_SHIRQ
, ha
->brd_info
->drv_name
, ha
);
1504 qla_printk(KERN_WARNING
, ha
,
1505 "Failed to reserve interrupt %d already in use.\n",
1509 host
->irq
= pdev
->irq
;
1511 /* Initialized the timer */
1512 qla2x00_start_timer(ha
, qla2x00_timer
, WATCH_INTERVAL
);
1514 DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
1517 ha
->isp_ops
.disable_intrs(ha
);
1519 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
1521 if (IS_QLA24XX(ha
) || IS_QLA25XX(ha
)) {
1522 WRT_REG_DWORD(®
->isp24
.hccr
, HCCRX_CLR_HOST_INT
);
1523 WRT_REG_DWORD(®
->isp24
.hccr
, HCCRX_CLR_RISC_INT
);
1525 WRT_REG_WORD(®
->isp
.semaphore
, 0);
1526 WRT_REG_WORD(®
->isp
.hccr
, HCCR_CLR_RISC_INT
);
1527 WRT_REG_WORD(®
->isp
.hccr
, HCCR_CLR_HOST_INT
);
1529 /* Enable proper parity */
1530 if (!IS_QLA2100(ha
) && !IS_QLA2200(ha
)) {
1533 WRT_REG_WORD(®
->isp
.hccr
,
1534 (HCCR_ENABLE_PARITY
+ 0x1));
1536 /* SRAM, Instruction RAM and GP RAM parity */
1537 WRT_REG_WORD(®
->isp
.hccr
,
1538 (HCCR_ENABLE_PARITY
+ 0x7));
1541 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
1543 ha
->isp_ops
.enable_intrs(ha
);
1547 * Wait around max loop_reset_delay secs for the devices to come
1548 * on-line. We don't want Linux scanning before we are ready.
1551 for (wait_switch
= jiffies
+ (ha
->loop_reset_delay
* HZ
);
1552 time_before(jiffies
,wait_switch
) &&
1553 !(ha
->device_flags
& (DFLG_NO_CABLE
| DFLG_FABRIC_DEVICES
))
1554 && (ha
->device_flags
& SWITCH_FOUND
) ;) {
1556 qla2x00_check_fabric_devices(ha
);
1561 pci_set_drvdata(pdev
, ha
);
1562 ha
->flags
.init_done
= 1;
1565 ret
= scsi_add_host(host
, &pdev
->dev
);
1569 qla2x00_alloc_sysfs_attr(ha
);
1571 qla2x00_init_host_attr(ha
);
1573 qla_printk(KERN_INFO
, ha
, "\n"
1574 " QLogic Fibre Channel HBA Driver: %s\n"
1576 " %s: %s @ %s hdma%c, host#=%ld, fw=%s\n", qla2x00_version_str
,
1577 ha
->model_number
, ha
->model_desc
? ha
->model_desc
: "",
1578 ha
->brd_info
->isp_name
, ha
->isp_ops
.pci_info_str(ha
, pci_info
),
1579 pci_name(pdev
), ha
->flags
.enable_64bit_addressing
? '+': '-',
1580 ha
->host_no
, ha
->isp_ops
.fw_version_str(ha
, fw_str
));
1582 /* Go with fc_rport registration. */
1583 list_for_each_entry(fcport
, &ha
->fcports
, list
)
1584 qla2x00_reg_remote_port(ha
, fcport
);
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
);
1631 if (ha
->timer_active
)
1632 qla2x00_stop_timer(ha
);
1634 /* Kill the kernel thread for this host */
1635 if (ha
->dpc_pid
>= 0) {
1636 ha
->dpc_should_die
= 1;
1638 ret
= kill_proc(ha
->dpc_pid
, SIGHUP
, 1);
1640 qla_printk(KERN_ERR
, ha
,
1641 "Unable to signal DPC thread -- (%d)\n", ret
);
1643 /* TODO: SOMETHING MORE??? */
1645 wait_for_completion(&ha
->dpc_exited
);
1649 /* Stop currently executing firmware. */
1650 qla2x00_stop_firmware(ha
);
1652 /* turn-off interrupts on the card */
1653 if (ha
->interrupts_on
)
1654 ha
->isp_ops
.disable_intrs(ha
);
1656 qla2x00_mem_free(ha
);
1658 ha
->flags
.online
= 0;
1660 /* Detach interrupts */
1662 free_irq(ha
->pdev
->irq
, ha
);
1664 /* release io space registers */
1666 iounmap(ha
->iobase
);
1667 pci_release_regions(ha
->pdev
);
1669 pci_disable_device(ha
->pdev
);
1673 * qla2x00_mark_device_lost Updates fcport state when device goes offline.
1675 * Input: ha = adapter block pointer. fcport = port structure pointer.
1681 void qla2x00_mark_device_lost(scsi_qla_host_t
*ha
, fc_port_t
*fcport
,
1684 if (atomic_read(&fcport
->state
) == FCS_ONLINE
&& fcport
->rport
)
1685 fc_remote_port_block(fcport
->rport
);
1687 * We may need to retry the login, so don't change the state of the
1688 * port but do the retries.
1690 if (atomic_read(&fcport
->state
) != FCS_DEVICE_DEAD
)
1691 atomic_set(&fcport
->state
, FCS_DEVICE_LOST
);
1696 if (fcport
->login_retry
== 0) {
1697 fcport
->login_retry
= ha
->login_retry_count
;
1698 set_bit(RELOGIN_NEEDED
, &ha
->dpc_flags
);
1700 DEBUG(printk("scsi(%ld): Port login retry: "
1701 "%02x%02x%02x%02x%02x%02x%02x%02x, "
1702 "id = 0x%04x retry cnt=%d\n",
1704 fcport
->port_name
[0],
1705 fcport
->port_name
[1],
1706 fcport
->port_name
[2],
1707 fcport
->port_name
[3],
1708 fcport
->port_name
[4],
1709 fcport
->port_name
[5],
1710 fcport
->port_name
[6],
1711 fcport
->port_name
[7],
1713 fcport
->login_retry
));
1718 * qla2x00_mark_all_devices_lost
1719 * Updates fcport state when device goes offline.
1722 * ha = adapter block pointer.
1723 * fcport = port structure pointer.
1731 qla2x00_mark_all_devices_lost(scsi_qla_host_t
*ha
)
1735 list_for_each_entry(fcport
, &ha
->fcports
, list
) {
1736 if (fcport
->port_type
!= FCT_TARGET
)
1740 * No point in marking the device as lost, if the device is
1743 if (atomic_read(&fcport
->state
) == FCS_DEVICE_DEAD
)
1745 if (atomic_read(&fcport
->state
) == FCS_ONLINE
&& fcport
->rport
)
1746 fc_remote_port_block(fcport
->rport
);
1747 atomic_set(&fcport
->state
, FCS_DEVICE_LOST
);
1753 * Allocates adapter memory.
1760 qla2x00_mem_alloc(scsi_qla_host_t
*ha
)
1768 * This will loop only once if everything goes well, else some
1769 * number of retries will be performed to get around a kernel
1770 * bug where available mem is not allocated until after a
1771 * little delay and a retry.
1773 ha
->request_ring
= dma_alloc_coherent(&ha
->pdev
->dev
,
1774 (ha
->request_q_length
+ 1) * sizeof(request_t
),
1775 &ha
->request_dma
, GFP_KERNEL
);
1776 if (ha
->request_ring
== NULL
) {
1777 qla_printk(KERN_WARNING
, ha
,
1778 "Memory Allocation failed - request_ring\n");
1780 qla2x00_mem_free(ha
);
1786 ha
->response_ring
= dma_alloc_coherent(&ha
->pdev
->dev
,
1787 (ha
->response_q_length
+ 1) * sizeof(response_t
),
1788 &ha
->response_dma
, GFP_KERNEL
);
1789 if (ha
->response_ring
== NULL
) {
1790 qla_printk(KERN_WARNING
, ha
,
1791 "Memory Allocation failed - response_ring\n");
1793 qla2x00_mem_free(ha
);
1799 ha
->gid_list
= dma_alloc_coherent(&ha
->pdev
->dev
, GID_LIST_SIZE
,
1800 &ha
->gid_list_dma
, GFP_KERNEL
);
1801 if (ha
->gid_list
== NULL
) {
1802 qla_printk(KERN_WARNING
, ha
,
1803 "Memory Allocation failed - gid_list\n");
1805 qla2x00_mem_free(ha
);
1811 ha
->rlc_rsp
= dma_alloc_coherent(&ha
->pdev
->dev
,
1812 sizeof(rpt_lun_cmd_rsp_t
), &ha
->rlc_rsp_dma
, GFP_KERNEL
);
1813 if (ha
->rlc_rsp
== NULL
) {
1814 qla_printk(KERN_WARNING
, ha
,
1815 "Memory Allocation failed - rlc");
1817 qla2x00_mem_free(ha
);
1823 snprintf(name
, sizeof(name
), "qla2xxx_%ld", ha
->host_no
);
1824 ha
->s_dma_pool
= dma_pool_create(name
, &ha
->pdev
->dev
,
1825 DMA_POOL_SIZE
, 8, 0);
1826 if (ha
->s_dma_pool
== NULL
) {
1827 qla_printk(KERN_WARNING
, ha
,
1828 "Memory Allocation failed - s_dma_pool\n");
1830 qla2x00_mem_free(ha
);
1836 /* get consistent memory allocated for init control block */
1837 ha
->init_cb
= dma_pool_alloc(ha
->s_dma_pool
, GFP_KERNEL
,
1839 if (ha
->init_cb
== NULL
) {
1840 qla_printk(KERN_WARNING
, ha
,
1841 "Memory Allocation failed - init_cb\n");
1843 qla2x00_mem_free(ha
);
1848 memset(ha
->init_cb
, 0, ha
->init_cb_size
);
1850 /* Get consistent memory allocated for Get Port Database cmd */
1851 ha
->iodesc_pd
= dma_pool_alloc(ha
->s_dma_pool
, GFP_KERNEL
,
1852 &ha
->iodesc_pd_dma
);
1853 if (ha
->iodesc_pd
== NULL
) {
1855 qla_printk(KERN_WARNING
, ha
,
1856 "Memory Allocation failed - iodesc_pd\n");
1858 qla2x00_mem_free(ha
);
1863 memset(ha
->iodesc_pd
, 0, PORT_DATABASE_SIZE
);
1865 /* Allocate ioctl related memory. */
1866 if (qla2x00_alloc_ioctl_mem(ha
)) {
1867 qla_printk(KERN_WARNING
, ha
,
1868 "Memory Allocation failed - ioctl_mem\n");
1870 qla2x00_mem_free(ha
);
1876 if (qla2x00_allocate_sp_pool(ha
)) {
1877 qla_printk(KERN_WARNING
, ha
,
1878 "Memory Allocation failed - "
1879 "qla2x00_allocate_sp_pool()\n");
1881 qla2x00_mem_free(ha
);
1887 /* Allocate memory for SNS commands */
1888 if (IS_QLA2100(ha
) || IS_QLA2200(ha
)) {
1889 /* Get consistent memory allocated for SNS commands */
1890 ha
->sns_cmd
= dma_alloc_coherent(&ha
->pdev
->dev
,
1891 sizeof(struct sns_cmd_pkt
), &ha
->sns_cmd_dma
,
1893 if (ha
->sns_cmd
== NULL
) {
1895 qla_printk(KERN_WARNING
, ha
,
1896 "Memory Allocation failed - sns_cmd\n");
1898 qla2x00_mem_free(ha
);
1903 memset(ha
->sns_cmd
, 0, sizeof(struct sns_cmd_pkt
));
1905 /* Get consistent memory allocated for MS IOCB */
1906 ha
->ms_iocb
= dma_pool_alloc(ha
->s_dma_pool
, GFP_KERNEL
,
1908 if (ha
->ms_iocb
== NULL
) {
1910 qla_printk(KERN_WARNING
, ha
,
1911 "Memory Allocation failed - ms_iocb\n");
1913 qla2x00_mem_free(ha
);
1918 memset(ha
->ms_iocb
, 0, sizeof(ms_iocb_entry_t
));
1921 * Get consistent memory allocated for CT SNS
1924 ha
->ct_sns
= dma_alloc_coherent(&ha
->pdev
->dev
,
1925 sizeof(struct ct_sns_pkt
), &ha
->ct_sns_dma
,
1927 if (ha
->ct_sns
== NULL
) {
1929 qla_printk(KERN_WARNING
, ha
,
1930 "Memory Allocation failed - ct_sns\n");
1932 qla2x00_mem_free(ha
);
1937 memset(ha
->ct_sns
, 0, sizeof(struct ct_sns_pkt
));
1940 /* Done all allocations without any error. */
1943 } while (retry
-- && status
!= 0);
1947 "%s(): **** FAILED ****\n", __func__
);
1955 * Frees all adapter allocated memory.
1958 * ha = adapter block pointer.
1961 qla2x00_mem_free(scsi_qla_host_t
*ha
)
1963 struct list_head
*fcpl
, *fcptemp
;
1965 unsigned int wtime
;/* max wait time if mbx cmd is busy. */
1969 DEBUG2(printk("%s(): ERROR invalid ha pointer.\n", __func__
));
1973 /* Make sure all other threads are stopped. */
1975 while (ha
->dpc_wait
&& wtime
)
1976 wtime
= msleep_interruptible(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
= 100; /* msecs */
2508 unsigned int iterations
= jiffies_to_msecs(timeout
)/100;
2511 if (!down_trylock(sema
))
2513 if (msleep_interruptible(step
))
2515 } while (--iterations
>= 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
);