2 * QLOGIC LINUX SOFTWARE
4 * QLogic ISP2x00 device driver for Linux 2.6.x
5 * Copyright (C) 2003-2004 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 * SCSI host template entry points
94 static int qla2xxx_slave_configure(struct scsi_device
* device
);
95 static int qla2xxx_slave_alloc(struct scsi_device
*);
96 static void qla2xxx_slave_destroy(struct scsi_device
*);
97 static int qla2x00_queuecommand(struct scsi_cmnd
*cmd
,
98 void (*fn
)(struct scsi_cmnd
*));
99 static int qla24xx_queuecommand(struct scsi_cmnd
*cmd
,
100 void (*fn
)(struct scsi_cmnd
*));
101 static int qla2xxx_eh_abort(struct scsi_cmnd
*);
102 static int qla2xxx_eh_device_reset(struct scsi_cmnd
*);
103 static int qla2xxx_eh_bus_reset(struct scsi_cmnd
*);
104 static int qla2xxx_eh_host_reset(struct scsi_cmnd
*);
105 static int qla2x00_loop_reset(scsi_qla_host_t
*ha
);
106 static int qla2x00_device_reset(scsi_qla_host_t
*, fc_port_t
*);
108 static struct scsi_host_template qla2x00_driver_template
= {
109 .module
= THIS_MODULE
,
111 .queuecommand
= qla2x00_queuecommand
,
113 .eh_abort_handler
= qla2xxx_eh_abort
,
114 .eh_device_reset_handler
= qla2xxx_eh_device_reset
,
115 .eh_bus_reset_handler
= qla2xxx_eh_bus_reset
,
116 .eh_host_reset_handler
= qla2xxx_eh_host_reset
,
118 .slave_configure
= qla2xxx_slave_configure
,
120 .slave_alloc
= qla2xxx_slave_alloc
,
121 .slave_destroy
= qla2xxx_slave_destroy
,
124 .use_clustering
= ENABLE_CLUSTERING
,
125 .sg_tablesize
= SG_ALL
,
128 * The RISC allows for each command to transfer (2^32-1) bytes of data,
129 * which equates to 0x800000 sectors.
131 .max_sectors
= 0xFFFF,
134 static struct scsi_host_template qla24xx_driver_template
= {
135 .module
= THIS_MODULE
,
137 .queuecommand
= qla24xx_queuecommand
,
139 .eh_abort_handler
= qla2xxx_eh_abort
,
140 .eh_device_reset_handler
= qla2xxx_eh_device_reset
,
141 .eh_bus_reset_handler
= qla2xxx_eh_bus_reset
,
142 .eh_host_reset_handler
= qla2xxx_eh_host_reset
,
144 .slave_configure
= qla2xxx_slave_configure
,
146 .slave_alloc
= qla2xxx_slave_alloc
,
147 .slave_destroy
= qla2xxx_slave_destroy
,
150 .use_clustering
= ENABLE_CLUSTERING
,
151 .sg_tablesize
= SG_ALL
,
153 .max_sectors
= 0xFFFF,
156 static struct scsi_transport_template
*qla2xxx_transport_template
= NULL
;
158 /* TODO Convert to inlines
162 #define WATCH_INTERVAL 1 /* number of seconds */
164 static void qla2x00_timer(scsi_qla_host_t
*);
166 static __inline__
void qla2x00_start_timer(scsi_qla_host_t
*,
167 void *, unsigned long);
168 static __inline__
void qla2x00_restart_timer(scsi_qla_host_t
*, unsigned long);
169 static __inline__
void qla2x00_stop_timer(scsi_qla_host_t
*);
172 qla2x00_start_timer(scsi_qla_host_t
*ha
, void *func
, unsigned long interval
)
174 init_timer(&ha
->timer
);
175 ha
->timer
.expires
= jiffies
+ interval
* HZ
;
176 ha
->timer
.data
= (unsigned long)ha
;
177 ha
->timer
.function
= (void (*)(unsigned long))func
;
178 add_timer(&ha
->timer
);
179 ha
->timer_active
= 1;
183 qla2x00_restart_timer(scsi_qla_host_t
*ha
, unsigned long interval
)
185 mod_timer(&ha
->timer
, jiffies
+ interval
* HZ
);
188 static __inline__
void
189 qla2x00_stop_timer(scsi_qla_host_t
*ha
)
191 del_timer_sync(&ha
->timer
);
192 ha
->timer_active
= 0;
195 static int qla2x00_do_dpc(void *data
);
197 static void qla2x00_rst_aen(scsi_qla_host_t
*);
199 static uint8_t qla2x00_mem_alloc(scsi_qla_host_t
*);
200 static void qla2x00_mem_free(scsi_qla_host_t
*ha
);
201 static int qla2x00_allocate_sp_pool( scsi_qla_host_t
*ha
);
202 static void qla2x00_free_sp_pool(scsi_qla_host_t
*ha
);
203 static void qla2x00_sp_free_dma(scsi_qla_host_t
*, srb_t
*);
204 void qla2x00_sp_compl(scsi_qla_host_t
*ha
, srb_t
*);
206 /* -------------------------------------------------------------------------- */
209 qla2x00_pci_info_str(struct scsi_qla_host
*ha
, char *str
)
211 static char *pci_bus_modes
[] = {
212 "33", "66", "100", "133",
217 pci_bus
= (ha
->pci_attr
& (BIT_9
| BIT_10
)) >> 9;
220 strcat(str
, pci_bus_modes
[pci_bus
]);
222 pci_bus
= (ha
->pci_attr
& BIT_8
) >> 8;
224 strcat(str
, pci_bus_modes
[pci_bus
]);
226 strcat(str
, " MHz)");
232 qla24xx_pci_info_str(struct scsi_qla_host
*ha
, char *str
)
234 static char *pci_bus_modes
[] = { "33", "66", "100", "133", };
238 pcie_reg
= pci_find_capability(ha
->pdev
, PCI_CAP_ID_EXP
);
241 uint16_t pcie_lstat
, lspeed
, lwidth
;
244 pci_read_config_word(ha
->pdev
, pcie_reg
, &pcie_lstat
);
245 lspeed
= pcie_lstat
& (BIT_0
| BIT_1
| BIT_2
| BIT_3
);
246 lwidth
= (pcie_lstat
&
247 (BIT_4
| BIT_5
| BIT_6
| BIT_7
| BIT_8
| BIT_9
)) >> 4;
249 strcpy(str
, "PCIe (");
251 strcat(str
, "2.5Gb/s ");
253 strcat(str
, "<unknown> ");
254 snprintf(lwstr
, sizeof(lwstr
), "x%d)", lwidth
);
261 pci_bus
= (ha
->pci_attr
& CSRX_PCIX_BUS_MODE_MASK
) >> 8;
262 if (pci_bus
== 0 || pci_bus
== 8) {
264 strcat(str
, pci_bus_modes
[pci_bus
>> 3]);
268 strcat(str
, "Mode 2");
270 strcat(str
, "Mode 1");
272 strcat(str
, pci_bus_modes
[pci_bus
& ~BIT_2
]);
274 strcat(str
, " MHz)");
280 qla2x00_fw_version_str(struct scsi_qla_host
*ha
, char *str
)
284 sprintf(str
, "%d.%02d.%02d ", ha
->fw_major_version
,
285 ha
->fw_minor_version
,
286 ha
->fw_subminor_version
);
288 if (ha
->fw_attributes
& BIT_9
) {
293 switch (ha
->fw_attributes
& 0xFF) {
307 sprintf(un_str
, "(%x)", ha
->fw_attributes
);
311 if (ha
->fw_attributes
& 0x100)
318 qla24xx_fw_version_str(struct scsi_qla_host
*ha
, char *str
)
320 if (ha
->fw_attributes
& BIT_0
)
321 strcat(str
, "[Class 2] ");
322 if (ha
->fw_attributes
& BIT_1
)
323 strcat(str
, "[IP] ");
324 if (ha
->fw_attributes
& BIT_2
)
325 strcat(str
, "[Multi-ID] ");
326 if (ha
->fw_attributes
& BIT_13
)
327 strcat(str
, "[Experimental]");
332 static inline srb_t
*
333 qla2x00_get_new_sp(scsi_qla_host_t
*ha
, fc_port_t
*fcport
,
334 struct scsi_cmnd
*cmd
, void (*done
)(struct scsi_cmnd
*))
338 sp
= mempool_alloc(ha
->srb_mempool
, GFP_ATOMIC
);
342 atomic_set(&sp
->ref_count
, 1);
347 CMD_SP(cmd
) = (void *)sp
;
348 cmd
->scsi_done
= done
;
354 qla2x00_queuecommand(struct scsi_cmnd
*cmd
, void (*done
)(struct scsi_cmnd
*))
356 scsi_qla_host_t
*ha
= to_qla_host(cmd
->device
->host
);
357 fc_port_t
*fcport
= (struct fc_port
*) cmd
->device
->hostdata
;
362 cmd
->result
= DID_NO_CONNECT
<< 16;
363 goto qc_fail_command
;
366 if (atomic_read(&fcport
->state
) != FCS_ONLINE
) {
367 if (atomic_read(&fcport
->state
) == FCS_DEVICE_DEAD
||
368 atomic_read(&ha
->loop_state
) == LOOP_DEAD
) {
369 cmd
->result
= DID_NO_CONNECT
<< 16;
370 goto qc_fail_command
;
375 spin_unlock_irq(ha
->host
->host_lock
);
377 sp
= qla2x00_get_new_sp(ha
, fcport
, cmd
, done
);
379 goto qc_host_busy_lock
;
381 rval
= qla2x00_start_scsi(sp
);
382 if (rval
!= QLA_SUCCESS
)
383 goto qc_host_busy_free_sp
;
385 /* Manage unprocessed RIO/ZIO commands in response queue. */
386 if (ha
->flags
.online
&& ha
->flags
.process_response_queue
&&
387 ha
->response_ring_ptr
->signature
!= RESPONSE_PROCESSED
) {
390 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
391 qla2x00_process_response_queue(ha
);
392 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
395 spin_lock_irq(ha
->host
->host_lock
);
399 qc_host_busy_free_sp
:
400 qla2x00_sp_free_dma(ha
, sp
);
401 mempool_free(sp
, ha
->srb_mempool
);
404 spin_lock_irq(ha
->host
->host_lock
);
407 return SCSI_MLQUEUE_HOST_BUSY
;
417 qla24xx_queuecommand(struct scsi_cmnd
*cmd
, void (*done
)(struct scsi_cmnd
*))
419 scsi_qla_host_t
*ha
= to_qla_host(cmd
->device
->host
);
420 fc_port_t
*fcport
= (struct fc_port
*) cmd
->device
->hostdata
;
425 cmd
->result
= DID_NO_CONNECT
<< 16;
426 goto qc24_fail_command
;
429 if (atomic_read(&fcport
->state
) != FCS_ONLINE
) {
430 if (atomic_read(&fcport
->state
) == FCS_DEVICE_DEAD
||
431 atomic_read(&ha
->loop_state
) == LOOP_DEAD
) {
432 cmd
->result
= DID_NO_CONNECT
<< 16;
433 goto qc24_fail_command
;
438 spin_unlock_irq(ha
->host
->host_lock
);
440 sp
= qla2x00_get_new_sp(ha
, fcport
, cmd
, done
);
442 goto qc24_host_busy_lock
;
444 rval
= qla24xx_start_scsi(sp
);
445 if (rval
!= QLA_SUCCESS
)
446 goto qc24_host_busy_free_sp
;
448 spin_lock_irq(ha
->host
->host_lock
);
452 qc24_host_busy_free_sp
:
453 qla2x00_sp_free_dma(ha
, sp
);
454 mempool_free(sp
, ha
->srb_mempool
);
457 spin_lock_irq(ha
->host
->host_lock
);
460 return SCSI_MLQUEUE_HOST_BUSY
;
470 * qla2x00_eh_wait_on_command
471 * Waits for the command to be returned by the Firmware for some
475 * ha = actual ha whose done queue will contain the command
476 * returned by firmware.
477 * cmd = Scsi Command to wait on.
478 * flag = Abort/Reset(Bus or Device Reset)
485 qla2x00_eh_wait_on_command(scsi_qla_host_t
*ha
, struct scsi_cmnd
*cmd
)
487 #define ABORT_POLLING_PERIOD HZ
488 #define ABORT_WAIT_ITER ((10 * HZ) / (ABORT_POLLING_PERIOD))
489 unsigned long wait_iter
= ABORT_WAIT_ITER
;
490 int ret
= QLA_SUCCESS
;
492 while (CMD_SP(cmd
)) {
493 set_current_state(TASK_UNINTERRUPTIBLE
);
494 schedule_timeout(ABORT_POLLING_PERIOD
);
500 ret
= QLA_FUNCTION_FAILED
;
506 * qla2x00_wait_for_hba_online
507 * Wait till the HBA is online after going through
508 * <= MAX_RETRIES_OF_ISP_ABORT or
509 * finally HBA is disabled ie marked offline
512 * ha - pointer to host adapter structure
515 * Does context switching-Release SPIN_LOCK
516 * (if any) before calling this routine.
519 * Success (Adapter is online) : 0
520 * Failed (Adapter is offline/disabled) : 1
523 qla2x00_wait_for_hba_online(scsi_qla_host_t
*ha
)
526 unsigned long wait_online
;
528 wait_online
= jiffies
+ (MAX_LOOP_TIMEOUT
* HZ
);
529 while (((test_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
)) ||
530 test_bit(ABORT_ISP_ACTIVE
, &ha
->dpc_flags
) ||
531 test_bit(ISP_ABORT_RETRY
, &ha
->dpc_flags
) ||
532 ha
->dpc_active
) && time_before(jiffies
, wait_online
)) {
536 if (ha
->flags
.online
)
537 return_status
= QLA_SUCCESS
;
539 return_status
= QLA_FUNCTION_FAILED
;
541 DEBUG2(printk("%s return_status=%d\n",__func__
,return_status
));
543 return (return_status
);
547 * qla2x00_wait_for_loop_ready
548 * Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
549 * to be in LOOP_READY state.
551 * ha - pointer to host adapter structure
554 * Does context switching-Release SPIN_LOCK
555 * (if any) before calling this routine.
559 * Success (LOOP_READY) : 0
560 * Failed (LOOP_NOT_READY) : 1
563 qla2x00_wait_for_loop_ready(scsi_qla_host_t
*ha
)
565 int return_status
= QLA_SUCCESS
;
566 unsigned long loop_timeout
;
568 /* wait for 5 min at the max for loop to be ready */
569 loop_timeout
= jiffies
+ (MAX_LOOP_TIMEOUT
* HZ
);
571 while ((!atomic_read(&ha
->loop_down_timer
) &&
572 atomic_read(&ha
->loop_state
) == LOOP_DOWN
) ||
573 atomic_read(&ha
->loop_state
) != LOOP_READY
) {
575 if (time_after_eq(jiffies
, loop_timeout
)) {
576 return_status
= QLA_FUNCTION_FAILED
;
580 return (return_status
);
583 /**************************************************************************
587 * The abort function will abort the specified command.
590 * cmd = Linux SCSI command packet to be aborted.
593 * Either SUCCESS or FAILED.
596 **************************************************************************/
598 qla2xxx_eh_abort(struct scsi_cmnd
*cmd
)
600 scsi_qla_host_t
*ha
= to_qla_host(cmd
->device
->host
);
603 unsigned int id
, lun
;
604 unsigned long serial
;
612 id
= cmd
->device
->id
;
613 lun
= cmd
->device
->lun
;
614 serial
= cmd
->serial_number
;
616 /* Check active list for command command. */
617 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
618 for (i
= 1; i
< MAX_OUTSTANDING_COMMANDS
; i
++) {
619 sp
= ha
->outstanding_cmds
[i
];
627 DEBUG2(printk("%s(%ld): aborting sp %p from RISC. pid=%ld "
628 "sp->state=%x\n", __func__
, ha
->host_no
, sp
, serial
,
630 DEBUG3(qla2x00_print_scsi_cmd(cmd
);)
632 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
633 if (ha
->isp_ops
.abort_command(ha
, sp
)) {
634 DEBUG2(printk("%s(%ld): abort_command "
635 "mbx failed.\n", __func__
, ha
->host_no
));
637 DEBUG3(printk("%s(%ld): abort_command "
638 "mbx success.\n", __func__
, ha
->host_no
));
641 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
645 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
647 /* Wait for the command to be returned. */
648 if (ret
== SUCCESS
) {
649 if (qla2x00_eh_wait_on_command(ha
, cmd
) != QLA_SUCCESS
) {
650 qla_printk(KERN_ERR
, ha
,
651 "scsi(%ld:%d:%d): Abort handler timed out -- %lx "
652 "%x.\n", ha
->host_no
, id
, lun
, serial
, ret
);
656 qla_printk(KERN_INFO
, ha
,
657 "scsi(%ld:%d:%d): Abort command issued -- %lx %x.\n", ha
->host_no
,
658 id
, lun
, serial
, ret
);
663 /**************************************************************************
664 * qla2x00_eh_wait_for_pending_target_commands
667 * Waits for all the commands to come back from the specified target.
670 * ha - pointer to scsi_qla_host structure.
673 * Either SUCCESS or FAILED.
676 **************************************************************************/
678 qla2x00_eh_wait_for_pending_target_commands(scsi_qla_host_t
*ha
, unsigned int t
)
683 struct scsi_cmnd
*cmd
;
689 * Waiting for all commands for the designated target in the active
692 for (cnt
= 1; cnt
< MAX_OUTSTANDING_COMMANDS
; cnt
++) {
693 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
694 sp
= ha
->outstanding_cmds
[cnt
];
697 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
698 if (cmd
->device
->id
== t
) {
699 if (!qla2x00_eh_wait_on_command(ha
, cmd
)) {
705 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
712 /**************************************************************************
713 * qla2xxx_eh_device_reset
716 * The device reset function will reset the target and abort any
717 * executing commands.
719 * NOTE: The use of SP is undefined within this context. Do *NOT*
720 * attempt to use this value, even if you determine it is
724 * cmd = Linux SCSI command packet of the command that cause the
728 * SUCCESS/FAILURE (defined as macro in scsi.h).
730 **************************************************************************/
732 qla2xxx_eh_device_reset(struct scsi_cmnd
*cmd
)
734 scsi_qla_host_t
*ha
= to_qla_host(cmd
->device
->host
);
735 fc_port_t
*fcport
= (struct fc_port
*) cmd
->device
->hostdata
;
738 unsigned int id
, lun
;
739 unsigned long serial
;
743 id
= cmd
->device
->id
;
744 lun
= cmd
->device
->lun
;
745 serial
= cmd
->serial_number
;
747 sp
= (srb_t
*) CMD_SP(cmd
);
751 qla_printk(KERN_INFO
, ha
,
752 "scsi(%ld:%d:%d): DEVICE RESET ISSUED.\n", ha
->host_no
, id
, lun
);
754 if (qla2x00_wait_for_hba_online(ha
) != QLA_SUCCESS
)
755 goto eh_dev_reset_done
;
757 if (qla2x00_wait_for_loop_ready(ha
) == QLA_SUCCESS
) {
758 if (qla2x00_device_reset(ha
, fcport
) == 0)
761 #if defined(LOGOUT_AFTER_DEVICE_RESET)
762 if (ret
== SUCCESS
) {
763 if (fcport
->flags
& FC_FABRIC_DEVICE
) {
764 ha
->isp_ops
.fabric_logout(ha
, fcport
->loop_id
);
765 qla2x00_mark_device_lost(ha
, fcport
);
770 DEBUG2(printk(KERN_INFO
771 "%s failed: loop not ready\n",__func__
);)
775 DEBUG3(printk("%s(%ld): device reset failed\n",
776 __func__
, ha
->host_no
));
777 qla_printk(KERN_INFO
, ha
, "%s: device reset failed\n",
780 goto eh_dev_reset_done
;
784 * If we are coming down the EH path, wait for all commands to
785 * complete for the device.
787 if (cmd
->device
->host
->eh_active
) {
788 if (qla2x00_eh_wait_for_pending_target_commands(ha
, id
))
792 DEBUG3(printk("%s(%ld): failed while waiting for "
793 "commands\n", __func__
, ha
->host_no
));
794 qla_printk(KERN_INFO
, ha
,
795 "%s: failed while waiting for commands\n",
798 goto eh_dev_reset_done
;
802 qla_printk(KERN_INFO
, ha
,
803 "scsi(%ld:%d:%d): DEVICE RESET SUCCEEDED.\n", ha
->host_no
, id
, lun
);
809 /**************************************************************************
810 * qla2x00_eh_wait_for_pending_commands
813 * Waits for all the commands to come back from the specified host.
816 * ha - pointer to scsi_qla_host structure.
823 **************************************************************************/
825 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t
*ha
)
830 struct scsi_cmnd
*cmd
;
836 * Waiting for all commands for the designated target in the active
839 for (cnt
= 1; cnt
< MAX_OUTSTANDING_COMMANDS
; cnt
++) {
840 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
841 sp
= ha
->outstanding_cmds
[cnt
];
844 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
845 status
= qla2x00_eh_wait_on_command(ha
, cmd
);
850 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
857 /**************************************************************************
858 * qla2xxx_eh_bus_reset
861 * The bus reset function will reset the bus and abort any executing
865 * cmd = Linux SCSI command packet of the command that cause the
869 * SUCCESS/FAILURE (defined as macro in scsi.h).
871 **************************************************************************/
873 qla2xxx_eh_bus_reset(struct scsi_cmnd
*cmd
)
875 scsi_qla_host_t
*ha
= to_qla_host(cmd
->device
->host
);
876 fc_port_t
*fcport
= (struct fc_port
*) cmd
->device
->hostdata
;
879 unsigned int id
, lun
;
880 unsigned long serial
;
884 id
= cmd
->device
->id
;
885 lun
= cmd
->device
->lun
;
886 serial
= cmd
->serial_number
;
888 sp
= (srb_t
*) CMD_SP(cmd
);
892 qla_printk(KERN_INFO
, ha
,
893 "scsi(%ld:%d:%d): LOOP RESET ISSUED.\n", ha
->host_no
, id
, lun
);
895 if (qla2x00_wait_for_hba_online(ha
) != QLA_SUCCESS
) {
896 DEBUG2(printk("%s failed:board disabled\n",__func__
));
897 goto eh_bus_reset_done
;
900 if (qla2x00_wait_for_loop_ready(ha
) == QLA_SUCCESS
) {
901 if (qla2x00_loop_reset(ha
) == QLA_SUCCESS
)
905 goto eh_bus_reset_done
;
907 /* Waiting for our command in done_queue to be returned to OS.*/
908 if (cmd
->device
->host
->eh_active
)
909 if (!qla2x00_eh_wait_for_pending_commands(ha
))
913 qla_printk(KERN_INFO
, ha
, "%s: reset %s\n", __func__
,
914 (ret
== FAILED
) ? "failed" : "succeded");
919 /**************************************************************************
920 * qla2xxx_eh_host_reset
923 * The reset function will reset the Adapter.
926 * cmd = Linux SCSI command packet of the command that cause the
930 * Either SUCCESS or FAILED.
933 **************************************************************************/
935 qla2xxx_eh_host_reset(struct scsi_cmnd
*cmd
)
937 scsi_qla_host_t
*ha
= to_qla_host(cmd
->device
->host
);
938 fc_port_t
*fcport
= (struct fc_port
*) cmd
->device
->hostdata
;
941 unsigned int id
, lun
;
942 unsigned long serial
;
946 id
= cmd
->device
->id
;
947 lun
= cmd
->device
->lun
;
948 serial
= cmd
->serial_number
;
950 sp
= (srb_t
*) CMD_SP(cmd
);
954 qla_printk(KERN_INFO
, ha
,
955 "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", ha
->host_no
, id
, lun
);
957 if (qla2x00_wait_for_hba_online(ha
) != QLA_SUCCESS
)
958 goto eh_host_reset_lock
;
961 * Fixme-may be dpc thread is active and processing
962 * loop_resync,so wait a while for it to
963 * be completed and then issue big hammer.Otherwise
964 * it may cause I/O failure as big hammer marks the
965 * devices as lost kicking of the port_down_timer
966 * while dpc is stuck for the mailbox to complete.
968 qla2x00_wait_for_loop_ready(ha
);
969 set_bit(ABORT_ISP_ACTIVE
, &ha
->dpc_flags
);
970 if (qla2x00_abort_isp(ha
)) {
971 clear_bit(ABORT_ISP_ACTIVE
, &ha
->dpc_flags
);
972 /* failed. schedule dpc to try */
973 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
975 if (qla2x00_wait_for_hba_online(ha
) != QLA_SUCCESS
)
976 goto eh_host_reset_lock
;
978 clear_bit(ABORT_ISP_ACTIVE
, &ha
->dpc_flags
);
980 /* Waiting for our command in done_queue to be returned to OS.*/
981 if (qla2x00_eh_wait_for_pending_commands(ha
))
985 qla_printk(KERN_INFO
, ha
, "%s: reset %s\n", __func__
,
986 (ret
== FAILED
) ? "failed" : "succeded");
996 * ha = adapter block pointer.
1002 qla2x00_loop_reset(scsi_qla_host_t
*ha
)
1004 int status
= QLA_SUCCESS
;
1005 struct fc_port
*fcport
;
1007 if (ha
->flags
.enable_lip_reset
) {
1008 status
= qla2x00_lip_reset(ha
);
1011 if (status
== QLA_SUCCESS
&& ha
->flags
.enable_target_reset
) {
1012 list_for_each_entry(fcport
, &ha
->fcports
, list
) {
1013 if (fcport
->port_type
!= FCT_TARGET
)
1016 status
= qla2x00_target_reset(ha
, fcport
);
1017 if (status
!= QLA_SUCCESS
)
1022 if (status
== QLA_SUCCESS
&&
1023 ((!ha
->flags
.enable_target_reset
&&
1024 !ha
->flags
.enable_lip_reset
) ||
1025 ha
->flags
.enable_lip_full_login
)) {
1027 status
= qla2x00_full_login_lip(ha
);
1030 /* Issue marker command only when we are going to start the I/O */
1031 ha
->marker_needed
= 1;
1035 DEBUG2_3(printk("%s(%ld): **** FAILED ****\n",
1040 DEBUG3(printk("%s(%ld): exiting normally.\n",
1049 * qla2x00_device_reset
1050 * Issue bus device reset message to the target.
1053 * ha = adapter block pointer.
1055 * TARGET_QUEUE_LOCK must be released.
1056 * ADAPTER_STATE_LOCK must be released.
1062 qla2x00_device_reset(scsi_qla_host_t
*ha
, fc_port_t
*reset_fcport
)
1064 /* Abort Target command will clear Reservation */
1065 return ha
->isp_ops
.abort_target(reset_fcport
);
1069 qla2xxx_slave_alloc(struct scsi_device
*sdev
)
1071 scsi_qla_host_t
*ha
= to_qla_host(sdev
->host
);
1072 struct fc_rport
*rport
= starget_to_rport(scsi_target(sdev
));
1080 list_for_each_entry(fcport
, &ha
->fcports
, list
) {
1081 if (rport
->port_name
==
1082 be64_to_cpu(*(uint64_t *)fcport
->port_name
)) {
1090 sdev
->hostdata
= fcport
;
1096 qla2xxx_slave_configure(struct scsi_device
*sdev
)
1098 scsi_qla_host_t
*ha
= to_qla_host(sdev
->host
);
1099 struct fc_rport
*rport
= starget_to_rport(sdev
->sdev_target
);
1101 if (sdev
->tagged_supported
)
1102 scsi_activate_tcq(sdev
, 32);
1104 scsi_deactivate_tcq(sdev
, 32);
1106 rport
->dev_loss_tmo
= ha
->port_down_retry_count
+ 5;
1112 qla2xxx_slave_destroy(struct scsi_device
*sdev
)
1114 sdev
->hostdata
= NULL
;
1118 * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1121 * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1122 * supported addressing method.
1125 qla2x00_config_dma_addressing(scsi_qla_host_t
*ha
)
1127 /* Assume 32bit DMA address */
1128 ha
->flags
.enable_64bit_addressing
= 0;
1131 * Given the two variants pci_set_dma_mask(), allow the compiler to
1132 * assist in setting the proper dma mask.
1134 if (sizeof(dma_addr_t
) > 4) {
1135 if (pci_set_dma_mask(ha
->pdev
, DMA_64BIT_MASK
) == 0) {
1136 ha
->flags
.enable_64bit_addressing
= 1;
1137 ha
->isp_ops
.calc_req_entries
= qla2x00_calc_iocbs_64
;
1138 ha
->isp_ops
.build_iocbs
= qla2x00_build_scsi_iocbs_64
;
1140 if (pci_set_consistent_dma_mask(ha
->pdev
,
1142 qla_printk(KERN_DEBUG
, ha
,
1143 "Failed to set 64 bit PCI consistent mask; "
1145 pci_set_consistent_dma_mask(ha
->pdev
,
1149 qla_printk(KERN_DEBUG
, ha
,
1150 "Failed to set 64 bit PCI DMA mask, falling back "
1151 "to 32 bit MASK.\n");
1152 pci_set_dma_mask(ha
->pdev
, DMA_32BIT_MASK
);
1155 pci_set_dma_mask(ha
->pdev
, DMA_32BIT_MASK
);
1160 qla2x00_iospace_config(scsi_qla_host_t
*ha
)
1162 unsigned long pio
, pio_len
, pio_flags
;
1163 unsigned long mmio
, mmio_len
, mmio_flags
;
1165 /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1166 pio
= pci_resource_start(ha
->pdev
, 0);
1167 pio_len
= pci_resource_len(ha
->pdev
, 0);
1168 pio_flags
= pci_resource_flags(ha
->pdev
, 0);
1169 if (pio_flags
& IORESOURCE_IO
) {
1170 if (pio_len
< MIN_IOBASE_LEN
) {
1171 qla_printk(KERN_WARNING
, ha
,
1172 "Invalid PCI I/O region size (%s)...\n",
1173 pci_name(ha
->pdev
));
1177 qla_printk(KERN_WARNING
, ha
,
1178 "region #0 not a PIO resource (%s)...\n",
1179 pci_name(ha
->pdev
));
1183 /* Use MMIO operations for all accesses. */
1184 mmio
= pci_resource_start(ha
->pdev
, 1);
1185 mmio_len
= pci_resource_len(ha
->pdev
, 1);
1186 mmio_flags
= pci_resource_flags(ha
->pdev
, 1);
1188 if (!(mmio_flags
& IORESOURCE_MEM
)) {
1189 qla_printk(KERN_ERR
, ha
,
1190 "region #0 not an MMIO resource (%s), aborting\n",
1191 pci_name(ha
->pdev
));
1192 goto iospace_error_exit
;
1194 if (mmio_len
< MIN_IOBASE_LEN
) {
1195 qla_printk(KERN_ERR
, ha
,
1196 "Invalid PCI mem region size (%s), aborting\n",
1197 pci_name(ha
->pdev
));
1198 goto iospace_error_exit
;
1201 if (pci_request_regions(ha
->pdev
, ha
->brd_info
->drv_name
)) {
1202 qla_printk(KERN_WARNING
, ha
,
1203 "Failed to reserve PIO/MMIO regions (%s)\n",
1204 pci_name(ha
->pdev
));
1206 goto iospace_error_exit
;
1209 ha
->pio_address
= pio
;
1210 ha
->pio_length
= pio_len
;
1211 ha
->iobase
= ioremap(mmio
, MIN_IOBASE_LEN
);
1213 qla_printk(KERN_ERR
, ha
,
1214 "cannot remap MMIO (%s), aborting\n", pci_name(ha
->pdev
));
1216 goto iospace_error_exit
;
1226 qla2x00_enable_intrs(scsi_qla_host_t
*ha
)
1228 unsigned long flags
= 0;
1229 struct device_reg_2xxx __iomem
*reg
= &ha
->iobase
->isp
;
1231 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
1232 ha
->interrupts_on
= 1;
1233 /* enable risc and host interrupts */
1234 WRT_REG_WORD(®
->ictrl
, ICR_EN_INT
| ICR_EN_RISC
);
1235 RD_REG_WORD(®
->ictrl
);
1236 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
1241 qla2x00_disable_intrs(scsi_qla_host_t
*ha
)
1243 unsigned long flags
= 0;
1244 struct device_reg_2xxx __iomem
*reg
= &ha
->iobase
->isp
;
1246 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
1247 ha
->interrupts_on
= 0;
1248 /* disable risc and host interrupts */
1249 WRT_REG_WORD(®
->ictrl
, 0);
1250 RD_REG_WORD(®
->ictrl
);
1251 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
1255 qla24xx_enable_intrs(scsi_qla_host_t
*ha
)
1257 unsigned long flags
= 0;
1258 struct device_reg_24xx __iomem
*reg
= &ha
->iobase
->isp24
;
1260 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
1261 ha
->interrupts_on
= 1;
1262 WRT_REG_DWORD(®
->ictrl
, ICRX_EN_RISC_INT
);
1263 RD_REG_DWORD(®
->ictrl
);
1264 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
1268 qla24xx_disable_intrs(scsi_qla_host_t
*ha
)
1270 unsigned long flags
= 0;
1271 struct device_reg_24xx __iomem
*reg
= &ha
->iobase
->isp24
;
1273 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
1274 ha
->interrupts_on
= 0;
1275 WRT_REG_DWORD(®
->ictrl
, 0);
1276 RD_REG_DWORD(®
->ictrl
);
1277 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
1281 * PCI driver interface
1283 int qla2x00_probe_one(struct pci_dev
*pdev
, struct qla_board_info
*brd_info
)
1286 device_reg_t __iomem
*reg
;
1287 struct Scsi_Host
*host
;
1288 scsi_qla_host_t
*ha
;
1289 unsigned long flags
= 0;
1290 unsigned long wait_switch
= 0;
1295 if (pci_enable_device(pdev
))
1298 host
= scsi_host_alloc(brd_info
->sht
? brd_info
->sht
:
1299 &qla2x00_driver_template
, sizeof(scsi_qla_host_t
));
1302 "qla2xxx: Couldn't allocate host from scsi layer!\n");
1303 goto probe_disable_device
;
1306 /* Clear our data area */
1307 ha
= (scsi_qla_host_t
*)host
->hostdata
;
1308 memset(ha
, 0, sizeof(scsi_qla_host_t
));
1312 ha
->host_no
= host
->host_no
;
1313 ha
->brd_info
= brd_info
;
1314 sprintf(ha
->host_str
, "%s_%ld", ha
->brd_info
->drv_name
, ha
->host_no
);
1316 /* Configure PCI I/O space */
1317 ret
= qla2x00_iospace_config(ha
);
1321 qla_printk(KERN_INFO
, ha
,
1322 "Found an %s, irq %d, iobase 0x%p\n", ha
->brd_info
->isp_name
,
1323 pdev
->irq
, ha
->iobase
);
1325 spin_lock_init(&ha
->hardware_lock
);
1327 ha
->prev_topology
= 0;
1328 ha
->ports
= MAX_BUSES
;
1329 ha
->init_cb_size
= sizeof(init_cb_t
);
1331 /* Assign ISP specific operations. */
1332 ha
->isp_ops
.pci_config
= qla2100_pci_config
;
1333 ha
->isp_ops
.reset_chip
= qla2x00_reset_chip
;
1334 ha
->isp_ops
.chip_diag
= qla2x00_chip_diag
;
1335 ha
->isp_ops
.config_rings
= qla2x00_config_rings
;
1336 ha
->isp_ops
.reset_adapter
= qla2x00_reset_adapter
;
1337 ha
->isp_ops
.nvram_config
= qla2x00_nvram_config
;
1338 ha
->isp_ops
.update_fw_options
= qla2x00_update_fw_options
;
1339 ha
->isp_ops
.load_risc
= qla2x00_load_risc
;
1340 ha
->isp_ops
.pci_info_str
= qla2x00_pci_info_str
;
1341 ha
->isp_ops
.fw_version_str
= qla2x00_fw_version_str
;
1342 ha
->isp_ops
.intr_handler
= qla2100_intr_handler
;
1343 ha
->isp_ops
.enable_intrs
= qla2x00_enable_intrs
;
1344 ha
->isp_ops
.disable_intrs
= qla2x00_disable_intrs
;
1345 ha
->isp_ops
.abort_command
= qla2x00_abort_command
;
1346 ha
->isp_ops
.abort_target
= qla2x00_abort_target
;
1347 ha
->isp_ops
.fabric_login
= qla2x00_login_fabric
;
1348 ha
->isp_ops
.fabric_logout
= qla2x00_fabric_logout
;
1349 ha
->isp_ops
.calc_req_entries
= qla2x00_calc_iocbs_32
;
1350 ha
->isp_ops
.build_iocbs
= qla2x00_build_scsi_iocbs_32
;
1351 ha
->isp_ops
.prep_ms_iocb
= qla2x00_prep_ms_iocb
;
1352 ha
->isp_ops
.read_nvram
= qla2x00_read_nvram_data
;
1353 ha
->isp_ops
.write_nvram
= qla2x00_write_nvram_data
;
1354 ha
->isp_ops
.fw_dump
= qla2100_fw_dump
;
1355 ha
->isp_ops
.ascii_fw_dump
= qla2100_ascii_fw_dump
;
1356 if (IS_QLA2100(ha
)) {
1357 host
->max_id
= MAX_TARGETS_2100
;
1358 ha
->mbx_count
= MAILBOX_REGISTER_COUNT_2100
;
1359 ha
->request_q_length
= REQUEST_ENTRY_CNT_2100
;
1360 ha
->response_q_length
= RESPONSE_ENTRY_CNT_2100
;
1361 ha
->last_loop_id
= SNS_LAST_LOOP_ID_2100
;
1362 host
->sg_tablesize
= 32;
1363 ha
->gid_list_info_size
= 4;
1364 } else if (IS_QLA2200(ha
)) {
1365 host
->max_id
= MAX_TARGETS_2200
;
1366 ha
->mbx_count
= MAILBOX_REGISTER_COUNT
;
1367 ha
->request_q_length
= REQUEST_ENTRY_CNT_2200
;
1368 ha
->response_q_length
= RESPONSE_ENTRY_CNT_2100
;
1369 ha
->last_loop_id
= SNS_LAST_LOOP_ID_2100
;
1370 ha
->gid_list_info_size
= 4;
1371 } else if (IS_QLA23XX(ha
)) {
1372 host
->max_id
= MAX_TARGETS_2200
;
1373 ha
->mbx_count
= MAILBOX_REGISTER_COUNT
;
1374 ha
->request_q_length
= REQUEST_ENTRY_CNT_2200
;
1375 ha
->response_q_length
= RESPONSE_ENTRY_CNT_2300
;
1376 ha
->last_loop_id
= SNS_LAST_LOOP_ID_2300
;
1377 ha
->isp_ops
.pci_config
= qla2300_pci_config
;
1378 ha
->isp_ops
.intr_handler
= qla2300_intr_handler
;
1379 ha
->isp_ops
.fw_dump
= qla2300_fw_dump
;
1380 ha
->isp_ops
.ascii_fw_dump
= qla2300_ascii_fw_dump
;
1381 ha
->gid_list_info_size
= 6;
1382 } else if (IS_QLA24XX(ha
) || IS_QLA25XX(ha
)) {
1383 host
->max_id
= MAX_TARGETS_2200
;
1384 ha
->mbx_count
= MAILBOX_REGISTER_COUNT
;
1385 ha
->request_q_length
= REQUEST_ENTRY_CNT_24XX
;
1386 ha
->response_q_length
= RESPONSE_ENTRY_CNT_2300
;
1387 ha
->last_loop_id
= SNS_LAST_LOOP_ID_2300
;
1388 ha
->init_cb_size
= sizeof(struct init_cb_24xx
);
1389 ha
->isp_ops
.pci_config
= qla24xx_pci_config
;
1390 ha
->isp_ops
.reset_chip
= qla24xx_reset_chip
;
1391 ha
->isp_ops
.chip_diag
= qla24xx_chip_diag
;
1392 ha
->isp_ops
.config_rings
= qla24xx_config_rings
;
1393 ha
->isp_ops
.reset_adapter
= qla24xx_reset_adapter
;
1394 ha
->isp_ops
.nvram_config
= qla24xx_nvram_config
;
1395 ha
->isp_ops
.update_fw_options
= qla24xx_update_fw_options
;
1396 ha
->isp_ops
.load_risc
= qla24xx_load_risc_flash
;
1398 ha
->isp_ops
.load_risc
= qla24xx_load_risc_hotplug
;
1399 ha
->isp_ops
.pci_info_str
= qla24xx_pci_info_str
;
1400 ha
->isp_ops
.fw_version_str
= qla24xx_fw_version_str
;
1401 ha
->isp_ops
.intr_handler
= qla24xx_intr_handler
;
1402 ha
->isp_ops
.enable_intrs
= qla24xx_enable_intrs
;
1403 ha
->isp_ops
.disable_intrs
= qla24xx_disable_intrs
;
1404 ha
->isp_ops
.abort_command
= qla24xx_abort_command
;
1405 ha
->isp_ops
.abort_target
= qla24xx_abort_target
;
1406 ha
->isp_ops
.fabric_login
= qla24xx_login_fabric
;
1407 ha
->isp_ops
.fabric_logout
= qla24xx_fabric_logout
;
1408 ha
->isp_ops
.prep_ms_iocb
= qla24xx_prep_ms_iocb
;
1409 ha
->isp_ops
.read_nvram
= qla24xx_read_nvram_data
;
1410 ha
->isp_ops
.write_nvram
= qla24xx_write_nvram_data
;
1411 ha
->isp_ops
.fw_dump
= qla24xx_fw_dump
;
1412 ha
->isp_ops
.ascii_fw_dump
= qla24xx_ascii_fw_dump
;
1413 ha
->gid_list_info_size
= 8;
1415 host
->can_queue
= ha
->request_q_length
+ 128;
1417 /* load the F/W, read paramaters, and init the H/W */
1418 ha
->instance
= num_hosts
;
1420 init_MUTEX(&ha
->mbx_cmd_sem
);
1421 init_MUTEX_LOCKED(&ha
->mbx_intr_sem
);
1423 INIT_LIST_HEAD(&ha
->list
);
1424 INIT_LIST_HEAD(&ha
->fcports
);
1425 INIT_LIST_HEAD(&ha
->rscn_fcports
);
1428 * These locks are used to prevent more than one CPU
1429 * from modifying the queue at the same time. The
1430 * higher level "host_lock" will reduce most
1431 * contention for these locks.
1433 spin_lock_init(&ha
->mbx_reg_lock
);
1436 init_completion(&ha
->dpc_inited
);
1437 init_completion(&ha
->dpc_exited
);
1439 qla2x00_config_dma_addressing(ha
);
1440 if (qla2x00_mem_alloc(ha
)) {
1441 qla_printk(KERN_WARNING
, ha
,
1442 "[ERROR] Failed to allocate memory for adapter\n");
1448 if (qla2x00_initialize_adapter(ha
) &&
1449 !(ha
->device_flags
& DFLG_NO_CABLE
)) {
1451 qla_printk(KERN_WARNING
, ha
,
1452 "Failed to initialize adapter\n");
1454 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
1455 "Adapter flags %x.\n",
1456 ha
->host_no
, ha
->device_flags
));
1463 * Startup the kernel thread for this host adapter
1465 ha
->dpc_should_die
= 0;
1466 ha
->dpc_pid
= kernel_thread(qla2x00_do_dpc
, ha
, 0);
1467 if (ha
->dpc_pid
< 0) {
1468 qla_printk(KERN_WARNING
, ha
,
1469 "Unable to start DPC thread!\n");
1474 wait_for_completion(&ha
->dpc_inited
);
1476 host
->this_id
= 255;
1477 host
->cmd_per_lun
= 3;
1478 host
->unique_id
= ha
->instance
;
1479 host
->max_cmd_len
= MAX_CMDSZ
;
1480 host
->max_channel
= ha
->ports
- 1;
1481 host
->max_lun
= MAX_LUNS
;
1482 host
->transportt
= qla2xxx_transport_template
;
1484 ret
= request_irq(pdev
->irq
, ha
->isp_ops
.intr_handler
,
1485 SA_INTERRUPT
|SA_SHIRQ
, ha
->brd_info
->drv_name
, ha
);
1487 qla_printk(KERN_WARNING
, ha
,
1488 "Failed to reserve interrupt %d already in use.\n",
1492 host
->irq
= pdev
->irq
;
1494 /* Initialized the timer */
1495 qla2x00_start_timer(ha
, qla2x00_timer
, WATCH_INTERVAL
);
1497 DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
1500 ha
->isp_ops
.disable_intrs(ha
);
1502 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
1504 if (IS_QLA24XX(ha
) || IS_QLA25XX(ha
)) {
1505 WRT_REG_DWORD(®
->isp24
.hccr
, HCCRX_CLR_HOST_INT
);
1506 WRT_REG_DWORD(®
->isp24
.hccr
, HCCRX_CLR_RISC_INT
);
1508 WRT_REG_WORD(®
->isp
.semaphore
, 0);
1509 WRT_REG_WORD(®
->isp
.hccr
, HCCR_CLR_RISC_INT
);
1510 WRT_REG_WORD(®
->isp
.hccr
, HCCR_CLR_HOST_INT
);
1512 /* Enable proper parity */
1513 if (!IS_QLA2100(ha
) && !IS_QLA2200(ha
)) {
1516 WRT_REG_WORD(®
->isp
.hccr
,
1517 (HCCR_ENABLE_PARITY
+ 0x1));
1519 /* SRAM, Instruction RAM and GP RAM parity */
1520 WRT_REG_WORD(®
->isp
.hccr
,
1521 (HCCR_ENABLE_PARITY
+ 0x7));
1524 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
1526 ha
->isp_ops
.enable_intrs(ha
);
1530 * Wait around max loop_reset_delay secs for the devices to come
1531 * on-line. We don't want Linux scanning before we are ready.
1534 for (wait_switch
= jiffies
+ (ha
->loop_reset_delay
* HZ
);
1535 time_before(jiffies
,wait_switch
) &&
1536 !(ha
->device_flags
& (DFLG_NO_CABLE
| DFLG_FABRIC_DEVICES
))
1537 && (ha
->device_flags
& SWITCH_FOUND
) ;) {
1539 qla2x00_check_fabric_devices(ha
);
1544 pci_set_drvdata(pdev
, ha
);
1545 ha
->flags
.init_done
= 1;
1548 ret
= scsi_add_host(host
, &pdev
->dev
);
1552 qla2x00_alloc_sysfs_attr(ha
);
1554 qla2x00_init_host_attr(ha
);
1556 qla_printk(KERN_INFO
, ha
, "\n"
1557 " QLogic Fibre Channel HBA Driver: %s\n"
1559 " %s: %s @ %s hdma%c, host#=%ld, fw=%s\n", qla2x00_version_str
,
1560 ha
->model_number
, ha
->model_desc
? ha
->model_desc
: "",
1561 ha
->brd_info
->isp_name
, ha
->isp_ops
.pci_info_str(ha
, pci_info
),
1562 pci_name(pdev
), ha
->flags
.enable_64bit_addressing
? '+': '-',
1563 ha
->host_no
, ha
->isp_ops
.fw_version_str(ha
, fw_str
));
1565 /* Go with fc_rport registration. */
1566 list_for_each_entry(fcport
, &ha
->fcports
, list
)
1567 qla2x00_reg_remote_port(ha
, fcport
);
1572 fc_remove_host(ha
->host
);
1574 qla2x00_free_device(ha
);
1576 scsi_host_put(host
);
1578 probe_disable_device
:
1579 pci_disable_device(pdev
);
1584 EXPORT_SYMBOL_GPL(qla2x00_probe_one
);
1586 void qla2x00_remove_one(struct pci_dev
*pdev
)
1588 scsi_qla_host_t
*ha
;
1590 ha
= pci_get_drvdata(pdev
);
1592 qla2x00_free_sysfs_attr(ha
);
1594 fc_remove_host(ha
->host
);
1596 scsi_remove_host(ha
->host
);
1598 qla2x00_free_device(ha
);
1600 scsi_host_put(ha
->host
);
1602 pci_set_drvdata(pdev
, NULL
);
1604 EXPORT_SYMBOL_GPL(qla2x00_remove_one
);
1607 qla2x00_free_device(scsi_qla_host_t
*ha
)
1611 /* Abort any outstanding IO descriptors. */
1612 if (!IS_QLA2100(ha
) && !IS_QLA2200(ha
))
1613 qla2x00_cancel_io_descriptors(ha
);
1615 /* turn-off interrupts on the card */
1616 if (ha
->interrupts_on
)
1617 ha
->isp_ops
.disable_intrs(ha
);
1620 if (ha
->timer_active
)
1621 qla2x00_stop_timer(ha
);
1623 /* Kill the kernel thread for this host */
1624 if (ha
->dpc_pid
>= 0) {
1625 ha
->dpc_should_die
= 1;
1627 ret
= kill_proc(ha
->dpc_pid
, SIGHUP
, 1);
1629 qla_printk(KERN_ERR
, ha
,
1630 "Unable to signal DPC thread -- (%d)\n", ret
);
1632 /* TODO: SOMETHING MORE??? */
1634 wait_for_completion(&ha
->dpc_exited
);
1638 qla2x00_mem_free(ha
);
1641 ha
->flags
.online
= 0;
1643 /* Detach interrupts */
1645 free_irq(ha
->pdev
->irq
, ha
);
1647 /* release io space registers */
1649 iounmap(ha
->iobase
);
1650 pci_release_regions(ha
->pdev
);
1652 pci_disable_device(ha
->pdev
);
1656 * qla2x00_mark_device_lost Updates fcport state when device goes offline.
1658 * Input: ha = adapter block pointer. fcport = port structure pointer.
1664 void qla2x00_mark_device_lost(scsi_qla_host_t
*ha
, fc_port_t
*fcport
,
1667 if (atomic_read(&fcport
->state
) == FCS_ONLINE
&& fcport
->rport
)
1668 fc_remote_port_block(fcport
->rport
);
1670 * We may need to retry the login, so don't change the state of the
1671 * port but do the retries.
1673 if (atomic_read(&fcport
->state
) != FCS_DEVICE_DEAD
)
1674 atomic_set(&fcport
->state
, FCS_DEVICE_LOST
);
1679 if (fcport
->login_retry
== 0) {
1680 fcport
->login_retry
= ha
->login_retry_count
;
1681 set_bit(RELOGIN_NEEDED
, &ha
->dpc_flags
);
1683 DEBUG(printk("scsi(%ld): Port login retry: "
1684 "%02x%02x%02x%02x%02x%02x%02x%02x, "
1685 "id = 0x%04x retry cnt=%d\n",
1687 fcport
->port_name
[0],
1688 fcport
->port_name
[1],
1689 fcport
->port_name
[2],
1690 fcport
->port_name
[3],
1691 fcport
->port_name
[4],
1692 fcport
->port_name
[5],
1693 fcport
->port_name
[6],
1694 fcport
->port_name
[7],
1696 fcport
->login_retry
));
1701 * qla2x00_mark_all_devices_lost
1702 * Updates fcport state when device goes offline.
1705 * ha = adapter block pointer.
1706 * fcport = port structure pointer.
1714 qla2x00_mark_all_devices_lost(scsi_qla_host_t
*ha
)
1718 list_for_each_entry(fcport
, &ha
->fcports
, list
) {
1719 if (fcport
->port_type
!= FCT_TARGET
)
1723 * No point in marking the device as lost, if the device is
1726 if (atomic_read(&fcport
->state
) == FCS_DEVICE_DEAD
)
1728 if (atomic_read(&fcport
->state
) == FCS_ONLINE
&& fcport
->rport
)
1729 fc_remote_port_block(fcport
->rport
);
1730 atomic_set(&fcport
->state
, FCS_DEVICE_LOST
);
1736 * Allocates adapter memory.
1743 qla2x00_mem_alloc(scsi_qla_host_t
*ha
)
1751 * This will loop only once if everything goes well, else some
1752 * number of retries will be performed to get around a kernel
1753 * bug where available mem is not allocated until after a
1754 * little delay and a retry.
1756 ha
->request_ring
= dma_alloc_coherent(&ha
->pdev
->dev
,
1757 (ha
->request_q_length
+ 1) * sizeof(request_t
),
1758 &ha
->request_dma
, GFP_KERNEL
);
1759 if (ha
->request_ring
== NULL
) {
1760 qla_printk(KERN_WARNING
, ha
,
1761 "Memory Allocation failed - request_ring\n");
1763 qla2x00_mem_free(ha
);
1769 ha
->response_ring
= dma_alloc_coherent(&ha
->pdev
->dev
,
1770 (ha
->response_q_length
+ 1) * sizeof(response_t
),
1771 &ha
->response_dma
, GFP_KERNEL
);
1772 if (ha
->response_ring
== NULL
) {
1773 qla_printk(KERN_WARNING
, ha
,
1774 "Memory Allocation failed - response_ring\n");
1776 qla2x00_mem_free(ha
);
1782 ha
->gid_list
= dma_alloc_coherent(&ha
->pdev
->dev
, GID_LIST_SIZE
,
1783 &ha
->gid_list_dma
, GFP_KERNEL
);
1784 if (ha
->gid_list
== NULL
) {
1785 qla_printk(KERN_WARNING
, ha
,
1786 "Memory Allocation failed - gid_list\n");
1788 qla2x00_mem_free(ha
);
1794 ha
->rlc_rsp
= dma_alloc_coherent(&ha
->pdev
->dev
,
1795 sizeof(rpt_lun_cmd_rsp_t
), &ha
->rlc_rsp_dma
, GFP_KERNEL
);
1796 if (ha
->rlc_rsp
== NULL
) {
1797 qla_printk(KERN_WARNING
, ha
,
1798 "Memory Allocation failed - rlc");
1800 qla2x00_mem_free(ha
);
1806 snprintf(name
, sizeof(name
), "qla2xxx_%ld", ha
->host_no
);
1807 ha
->s_dma_pool
= dma_pool_create(name
, &ha
->pdev
->dev
,
1808 DMA_POOL_SIZE
, 8, 0);
1809 if (ha
->s_dma_pool
== NULL
) {
1810 qla_printk(KERN_WARNING
, ha
,
1811 "Memory Allocation failed - s_dma_pool\n");
1813 qla2x00_mem_free(ha
);
1819 /* get consistent memory allocated for init control block */
1820 ha
->init_cb
= dma_pool_alloc(ha
->s_dma_pool
, GFP_KERNEL
,
1822 if (ha
->init_cb
== NULL
) {
1823 qla_printk(KERN_WARNING
, ha
,
1824 "Memory Allocation failed - init_cb\n");
1826 qla2x00_mem_free(ha
);
1831 memset(ha
->init_cb
, 0, ha
->init_cb_size
);
1833 /* Get consistent memory allocated for Get Port Database cmd */
1834 ha
->iodesc_pd
= dma_pool_alloc(ha
->s_dma_pool
, GFP_KERNEL
,
1835 &ha
->iodesc_pd_dma
);
1836 if (ha
->iodesc_pd
== NULL
) {
1838 qla_printk(KERN_WARNING
, ha
,
1839 "Memory Allocation failed - iodesc_pd\n");
1841 qla2x00_mem_free(ha
);
1846 memset(ha
->iodesc_pd
, 0, PORT_DATABASE_SIZE
);
1848 /* Allocate ioctl related memory. */
1849 if (qla2x00_alloc_ioctl_mem(ha
)) {
1850 qla_printk(KERN_WARNING
, ha
,
1851 "Memory Allocation failed - ioctl_mem\n");
1853 qla2x00_mem_free(ha
);
1859 if (qla2x00_allocate_sp_pool(ha
)) {
1860 qla_printk(KERN_WARNING
, ha
,
1861 "Memory Allocation failed - "
1862 "qla2x00_allocate_sp_pool()\n");
1864 qla2x00_mem_free(ha
);
1870 /* Allocate memory for SNS commands */
1871 if (IS_QLA2100(ha
) || IS_QLA2200(ha
)) {
1872 /* Get consistent memory allocated for SNS commands */
1873 ha
->sns_cmd
= dma_alloc_coherent(&ha
->pdev
->dev
,
1874 sizeof(struct sns_cmd_pkt
), &ha
->sns_cmd_dma
,
1876 if (ha
->sns_cmd
== NULL
) {
1878 qla_printk(KERN_WARNING
, ha
,
1879 "Memory Allocation failed - sns_cmd\n");
1881 qla2x00_mem_free(ha
);
1886 memset(ha
->sns_cmd
, 0, sizeof(struct sns_cmd_pkt
));
1888 /* Get consistent memory allocated for MS IOCB */
1889 ha
->ms_iocb
= dma_pool_alloc(ha
->s_dma_pool
, GFP_KERNEL
,
1891 if (ha
->ms_iocb
== NULL
) {
1893 qla_printk(KERN_WARNING
, ha
,
1894 "Memory Allocation failed - ms_iocb\n");
1896 qla2x00_mem_free(ha
);
1901 memset(ha
->ms_iocb
, 0, sizeof(ms_iocb_entry_t
));
1904 * Get consistent memory allocated for CT SNS
1907 ha
->ct_sns
= dma_alloc_coherent(&ha
->pdev
->dev
,
1908 sizeof(struct ct_sns_pkt
), &ha
->ct_sns_dma
,
1910 if (ha
->ct_sns
== NULL
) {
1912 qla_printk(KERN_WARNING
, ha
,
1913 "Memory Allocation failed - ct_sns\n");
1915 qla2x00_mem_free(ha
);
1920 memset(ha
->ct_sns
, 0, sizeof(struct ct_sns_pkt
));
1923 /* Done all allocations without any error. */
1926 } while (retry
-- && status
!= 0);
1930 "%s(): **** FAILED ****\n", __func__
);
1938 * Frees all adapter allocated memory.
1941 * ha = adapter block pointer.
1944 qla2x00_mem_free(scsi_qla_host_t
*ha
)
1946 struct list_head
*fcpl
, *fcptemp
;
1948 unsigned long wtime
;/* max wait time if mbx cmd is busy. */
1952 DEBUG2(printk("%s(): ERROR invalid ha pointer.\n", __func__
));
1956 /* Make sure all other threads are stopped. */
1958 while (ha
->dpc_wait
&& wtime
) {
1959 set_current_state(TASK_INTERRUPTIBLE
);
1960 wtime
= schedule_timeout(wtime
);
1963 /* free ioctl memory */
1964 qla2x00_free_ioctl_mem(ha
);
1967 qla2x00_free_sp_pool(ha
);
1970 dma_free_coherent(&ha
->pdev
->dev
, sizeof(struct sns_cmd_pkt
),
1971 ha
->sns_cmd
, ha
->sns_cmd_dma
);
1974 dma_free_coherent(&ha
->pdev
->dev
, sizeof(struct ct_sns_pkt
),
1975 ha
->ct_sns
, ha
->ct_sns_dma
);
1978 dma_pool_free(ha
->s_dma_pool
, ha
->ms_iocb
, ha
->ms_iocb_dma
);
1981 dma_pool_free(ha
->s_dma_pool
, ha
->iodesc_pd
, ha
->iodesc_pd_dma
);
1984 dma_pool_free(ha
->s_dma_pool
, ha
->init_cb
, ha
->init_cb_dma
);
1987 dma_pool_destroy(ha
->s_dma_pool
);
1990 dma_free_coherent(&ha
->pdev
->dev
,
1991 sizeof(rpt_lun_cmd_rsp_t
), ha
->rlc_rsp
,
1995 dma_free_coherent(&ha
->pdev
->dev
, GID_LIST_SIZE
, ha
->gid_list
,
1998 if (ha
->response_ring
)
1999 dma_free_coherent(&ha
->pdev
->dev
,
2000 (ha
->response_q_length
+ 1) * sizeof(response_t
),
2001 ha
->response_ring
, ha
->response_dma
);
2003 if (ha
->request_ring
)
2004 dma_free_coherent(&ha
->pdev
->dev
,
2005 (ha
->request_q_length
+ 1) * sizeof(request_t
),
2006 ha
->request_ring
, ha
->request_dma
);
2009 ha
->sns_cmd_dma
= 0;
2013 ha
->ms_iocb_dma
= 0;
2014 ha
->iodesc_pd
= NULL
;
2015 ha
->iodesc_pd_dma
= 0;
2017 ha
->init_cb_dma
= 0;
2019 ha
->s_dma_pool
= NULL
;
2022 ha
->rlc_rsp_dma
= 0;
2023 ha
->gid_list
= NULL
;
2024 ha
->gid_list_dma
= 0;
2026 ha
->response_ring
= NULL
;
2027 ha
->response_dma
= 0;
2028 ha
->request_ring
= NULL
;
2029 ha
->request_dma
= 0;
2031 list_for_each_safe(fcpl
, fcptemp
, &ha
->fcports
) {
2032 fcport
= list_entry(fcpl
, fc_port_t
, list
);
2035 list_del_init(&fcport
->list
);
2038 INIT_LIST_HEAD(&ha
->fcports
);
2041 free_pages((unsigned long)ha
->fw_dump
, ha
->fw_dump_order
);
2043 vfree(ha
->fw_dump24
);
2045 vfree(ha
->fw_dump_buffer
);
2048 ha
->fw_dump24
= NULL
;
2050 ha
->fw_dump_reading
= 0;
2051 ha
->fw_dump_buffer
= NULL
;
2055 * qla2x00_allocate_sp_pool
2056 * This routine is called during initialization to allocate
2057 * memory for local srb_t.
2060 * ha = adapter block pointer.
2065 * Note: Sets the ref_count for non Null sp to one.
2068 qla2x00_allocate_sp_pool(scsi_qla_host_t
*ha
)
2073 ha
->srb_mempool
= mempool_create(SRB_MIN_REQ
, mempool_alloc_slab
,
2074 mempool_free_slab
, srb_cachep
);
2075 if (ha
->srb_mempool
== NULL
) {
2076 qla_printk(KERN_INFO
, ha
, "Unable to allocate SRB mempool.\n");
2077 rval
= QLA_FUNCTION_FAILED
;
2083 * This routine frees all adapter allocated memory.
2087 qla2x00_free_sp_pool( scsi_qla_host_t
*ha
)
2089 if (ha
->srb_mempool
) {
2090 mempool_destroy(ha
->srb_mempool
);
2091 ha
->srb_mempool
= NULL
;
2095 /**************************************************************************
2097 * This kernel thread is a task that is schedule by the interrupt handler
2098 * to perform the background processing for interrupts.
2101 * This task always run in the context of a kernel thread. It
2102 * is kick-off by the driver's detect code and starts up
2103 * up one per adapter. It immediately goes to sleep and waits for
2104 * some fibre event. When either the interrupt handler or
2105 * the timer routine detects a event it will one of the task
2106 * bits then wake us up.
2107 **************************************************************************/
2109 qla2x00_do_dpc(void *data
)
2111 DECLARE_MUTEX_LOCKED(sem
);
2112 scsi_qla_host_t
*ha
;
2115 uint16_t next_loopid
;
2117 ha
= (scsi_qla_host_t
*)data
;
2121 daemonize("%s_dpc", ha
->host_str
);
2122 allow_signal(SIGHUP
);
2124 ha
->dpc_wait
= &sem
;
2126 set_user_nice(current
, -20);
2130 complete(&ha
->dpc_inited
);
2133 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
2135 if (down_interruptible(&sem
))
2138 if (ha
->dpc_should_die
)
2141 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
2143 /* Initialization not yet finished. Don't do anything yet. */
2144 if (!ha
->flags
.init_done
|| ha
->dpc_active
)
2147 DEBUG3(printk("scsi(%ld): DPC handler\n", ha
->host_no
));
2151 if (ha
->flags
.mbox_busy
) {
2156 if (test_and_clear_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
)) {
2158 DEBUG(printk("scsi(%ld): dpc: sched "
2159 "qla2x00_abort_isp ha = %p\n",
2161 if (!(test_and_set_bit(ABORT_ISP_ACTIVE
,
2164 if (qla2x00_abort_isp(ha
)) {
2165 /* failed. retry later */
2166 set_bit(ISP_ABORT_NEEDED
,
2169 clear_bit(ABORT_ISP_ACTIVE
, &ha
->dpc_flags
);
2171 DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
2175 if (test_and_clear_bit(RESET_MARKER_NEEDED
, &ha
->dpc_flags
) &&
2176 (!(test_and_set_bit(RESET_ACTIVE
, &ha
->dpc_flags
)))) {
2178 DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
2181 qla2x00_rst_aen(ha
);
2182 clear_bit(RESET_ACTIVE
, &ha
->dpc_flags
);
2185 /* Retry each device up to login retry count */
2186 if ((test_and_clear_bit(RELOGIN_NEEDED
, &ha
->dpc_flags
)) &&
2187 !test_bit(LOOP_RESYNC_NEEDED
, &ha
->dpc_flags
) &&
2188 atomic_read(&ha
->loop_state
) != LOOP_DOWN
) {
2190 DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
2194 list_for_each_entry(fcport
, &ha
->fcports
, list
) {
2195 if (fcport
->port_type
!= FCT_TARGET
)
2199 * If the port is not ONLINE then try to login
2200 * to it if we haven't run out of retries.
2202 if (atomic_read(&fcport
->state
) != FCS_ONLINE
&&
2203 fcport
->login_retry
) {
2205 fcport
->login_retry
--;
2206 if (fcport
->flags
& FCF_FABRIC_DEVICE
) {
2209 ha
->isp_ops
.fabric_logout(
2210 ha
, fcport
->loop_id
,
2211 fcport
->d_id
.b
.domain
,
2212 fcport
->d_id
.b
.area
,
2213 fcport
->d_id
.b
.al_pa
);
2214 status
= qla2x00_fabric_login(
2215 ha
, fcport
, &next_loopid
);
2218 qla2x00_local_device_login(
2219 ha
, fcport
->loop_id
);
2221 if (status
== QLA_SUCCESS
) {
2222 fcport
->old_loop_id
= fcport
->loop_id
;
2224 DEBUG(printk("scsi(%ld): port login OK: logged in ID 0x%x\n",
2225 ha
->host_no
, fcport
->loop_id
));
2227 fcport
->port_login_retry_count
=
2228 ha
->port_down_retry_count
* PORT_RETRY_TIME
;
2229 atomic_set(&fcport
->state
, FCS_ONLINE
);
2230 atomic_set(&fcport
->port_down_timer
,
2231 ha
->port_down_retry_count
* PORT_RETRY_TIME
);
2233 fcport
->login_retry
= 0;
2234 } else if (status
== 1) {
2235 set_bit(RELOGIN_NEEDED
, &ha
->dpc_flags
);
2236 /* retry the login again */
2237 DEBUG(printk("scsi(%ld): Retrying %d login again loop_id 0x%x\n",
2239 fcport
->login_retry
, fcport
->loop_id
));
2241 fcport
->login_retry
= 0;
2244 if (test_bit(LOOP_RESYNC_NEEDED
, &ha
->dpc_flags
))
2247 DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
2251 if ((test_bit(LOGIN_RETRY_NEEDED
, &ha
->dpc_flags
)) &&
2252 atomic_read(&ha
->loop_state
) != LOOP_DOWN
) {
2254 clear_bit(LOGIN_RETRY_NEEDED
, &ha
->dpc_flags
);
2255 DEBUG(printk("scsi(%ld): qla2x00_login_retry()\n",
2258 set_bit(LOOP_RESYNC_NEEDED
, &ha
->dpc_flags
);
2260 DEBUG(printk("scsi(%ld): qla2x00_login_retry - end\n",
2264 if (test_and_clear_bit(LOOP_RESYNC_NEEDED
, &ha
->dpc_flags
)) {
2266 DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
2269 if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE
,
2272 qla2x00_loop_resync(ha
);
2274 clear_bit(LOOP_RESYNC_ACTIVE
, &ha
->dpc_flags
);
2277 DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
2281 if (test_and_clear_bit(FCPORT_RESCAN_NEEDED
, &ha
->dpc_flags
)) {
2283 DEBUG(printk("scsi(%ld): Rescan flagged fcports...\n",
2286 qla2x00_rescan_fcports(ha
);
2288 DEBUG(printk("scsi(%ld): Rescan flagged fcports..."
2293 if (!ha
->interrupts_on
)
2294 ha
->isp_ops
.enable_intrs(ha
);
2297 } /* End of while(1) */
2299 DEBUG(printk("scsi(%ld): DPC handler exiting\n", ha
->host_no
));
2302 * Make sure that nobody tries to wake us up again.
2304 ha
->dpc_wait
= NULL
;
2307 complete_and_exit(&ha
->dpc_exited
, 0);
2312 * Processes asynchronous reset.
2315 * ha = adapter block pointer.
2318 qla2x00_rst_aen(scsi_qla_host_t
*ha
)
2320 if (ha
->flags
.online
&& !ha
->flags
.reset_active
&&
2321 !atomic_read(&ha
->loop_down_timer
) &&
2322 !(test_bit(ABORT_ISP_ACTIVE
, &ha
->dpc_flags
))) {
2324 clear_bit(RESET_MARKER_NEEDED
, &ha
->dpc_flags
);
2327 * Issue marker command only when we are going to start
2330 ha
->marker_needed
= 1;
2331 } while (!atomic_read(&ha
->loop_down_timer
) &&
2332 (test_bit(RESET_MARKER_NEEDED
, &ha
->dpc_flags
)));
2337 qla2x00_sp_free_dma(scsi_qla_host_t
*ha
, srb_t
*sp
)
2339 struct scsi_cmnd
*cmd
= sp
->cmd
;
2341 if (sp
->flags
& SRB_DMA_VALID
) {
2343 dma_unmap_sg(&ha
->pdev
->dev
, cmd
->request_buffer
,
2344 cmd
->use_sg
, cmd
->sc_data_direction
);
2345 } else if (cmd
->request_bufflen
) {
2346 dma_unmap_single(&ha
->pdev
->dev
, sp
->dma_handle
,
2347 cmd
->request_bufflen
, cmd
->sc_data_direction
);
2349 sp
->flags
&= ~SRB_DMA_VALID
;
2355 qla2x00_sp_compl(scsi_qla_host_t
*ha
, srb_t
*sp
)
2357 struct scsi_cmnd
*cmd
= sp
->cmd
;
2359 qla2x00_sp_free_dma(ha
, sp
);
2361 mempool_free(sp
, ha
->srb_mempool
);
2363 cmd
->scsi_done(cmd
);
2366 /**************************************************************************
2372 * Context: Interrupt
2373 ***************************************************************************/
2375 qla2x00_timer(scsi_qla_host_t
*ha
)
2377 unsigned long cpu_flags
= 0;
2385 * Ports - Port down timer.
2387 * Whenever, a port is in the LOST state we start decrementing its port
2388 * down timer every second until it reaches zero. Once it reaches zero
2389 * the port it marked DEAD.
2392 list_for_each_entry(fcport
, &ha
->fcports
, list
) {
2393 if (fcport
->port_type
!= FCT_TARGET
)
2396 if (atomic_read(&fcport
->state
) == FCS_DEVICE_LOST
) {
2398 if (atomic_read(&fcport
->port_down_timer
) == 0)
2401 if (atomic_dec_and_test(&fcport
->port_down_timer
) != 0)
2402 atomic_set(&fcport
->state
, FCS_DEVICE_DEAD
);
2404 DEBUG(printk("scsi(%ld): fcport-%d - port retry count: "
2407 t
, atomic_read(&fcport
->port_down_timer
)));
2410 } /* End of for fcport */
2413 /* Loop down handler. */
2414 if (atomic_read(&ha
->loop_down_timer
) > 0 &&
2415 !(test_bit(ABORT_ISP_ACTIVE
, &ha
->dpc_flags
)) && ha
->flags
.online
) {
2417 if (atomic_read(&ha
->loop_down_timer
) ==
2418 ha
->loop_down_abort_time
) {
2420 DEBUG(printk("scsi(%ld): Loop Down - aborting the "
2421 "queues before time expire\n",
2424 if (!IS_QLA2100(ha
) && ha
->link_down_timeout
)
2425 atomic_set(&ha
->loop_state
, LOOP_DEAD
);
2427 /* Schedule an ISP abort to return any tape commands. */
2428 spin_lock_irqsave(&ha
->hardware_lock
, cpu_flags
);
2429 for (index
= 1; index
< MAX_OUTSTANDING_COMMANDS
;
2433 sp
= ha
->outstanding_cmds
[index
];
2437 if (!(sfcp
->flags
& FCF_TAPE_PRESENT
))
2440 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
2443 spin_unlock_irqrestore(&ha
->hardware_lock
, cpu_flags
);
2445 set_bit(ABORT_QUEUES_NEEDED
, &ha
->dpc_flags
);
2449 /* if the loop has been down for 4 minutes, reinit adapter */
2450 if (atomic_dec_and_test(&ha
->loop_down_timer
) != 0) {
2451 DEBUG(printk("scsi(%ld): Loop down exceed 4 mins - "
2452 "restarting queues.\n",
2455 set_bit(RESTART_QUEUES_NEEDED
, &ha
->dpc_flags
);
2458 if (!(ha
->device_flags
& DFLG_NO_CABLE
)) {
2459 DEBUG(printk("scsi(%ld): Loop down - "
2462 qla_printk(KERN_WARNING
, ha
,
2463 "Loop down - aborting ISP.\n");
2465 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
2468 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
2470 atomic_read(&ha
->loop_down_timer
)));
2473 /* Schedule the DPC routine if needed */
2474 if ((test_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
) ||
2475 test_bit(LOOP_RESYNC_NEEDED
, &ha
->dpc_flags
) ||
2477 test_bit(LOGIN_RETRY_NEEDED
, &ha
->dpc_flags
) ||
2478 test_bit(RESET_MARKER_NEEDED
, &ha
->dpc_flags
) ||
2479 test_bit(RELOGIN_NEEDED
, &ha
->dpc_flags
)) &&
2480 ha
->dpc_wait
&& !ha
->dpc_active
) {
2485 qla2x00_restart_timer(ha
, WATCH_INTERVAL
);
2488 /* XXX(hch): crude hack to emulate a down_timeout() */
2490 qla2x00_down_timeout(struct semaphore
*sema
, unsigned long timeout
)
2492 const unsigned int step
= HZ
/10;
2495 if (!down_trylock(sema
))
2497 set_current_state(TASK_INTERRUPTIBLE
);
2498 if (schedule_timeout(step
))
2500 } while ((timeout
-= step
) > 0);
2505 static struct qla_board_info qla_board_tbl
[] = {
2507 .drv_name
= "qla2400",
2508 .isp_name
= "ISP2422",
2509 .fw_fname
= "ql2400_fw.bin",
2510 .sht
= &qla24xx_driver_template
,
2513 .drv_name
= "qla2400",
2514 .isp_name
= "ISP2432",
2515 .fw_fname
= "ql2400_fw.bin",
2516 .sht
= &qla24xx_driver_template
,
2520 static struct pci_device_id qla2xxx_pci_tbl
[] = {
2522 .vendor
= PCI_VENDOR_ID_QLOGIC
,
2523 .device
= PCI_DEVICE_ID_QLOGIC_ISP2422
,
2524 .subvendor
= PCI_ANY_ID
,
2525 .subdevice
= PCI_ANY_ID
,
2526 .driver_data
= (unsigned long)&qla_board_tbl
[0],
2529 .vendor
= PCI_VENDOR_ID_QLOGIC
,
2530 .device
= PCI_DEVICE_ID_QLOGIC_ISP2432
,
2531 .subvendor
= PCI_ANY_ID
,
2532 .subdevice
= PCI_ANY_ID
,
2533 .driver_data
= (unsigned long)&qla_board_tbl
[1],
2537 MODULE_DEVICE_TABLE(pci
, qla2xxx_pci_tbl
);
2539 static int __devinit
2540 qla2xxx_probe_one(struct pci_dev
*pdev
, const struct pci_device_id
*id
)
2542 return qla2x00_probe_one(pdev
,
2543 (struct qla_board_info
*)id
->driver_data
);
2546 static void __devexit
2547 qla2xxx_remove_one(struct pci_dev
*pdev
)
2549 qla2x00_remove_one(pdev
);
2552 static struct pci_driver qla2xxx_pci_driver
= {
2554 .id_table
= qla2xxx_pci_tbl
,
2555 .probe
= qla2xxx_probe_one
,
2556 .remove
= __devexit_p(qla2xxx_remove_one
),
2560 * qla2x00_module_init - Module initialization.
2563 qla2x00_module_init(void)
2567 /* Allocate cache for SRBs. */
2568 srb_cachep
= kmem_cache_create("qla2xxx_srbs", sizeof(srb_t
), 0,
2569 SLAB_HWCACHE_ALIGN
, NULL
, NULL
);
2570 if (srb_cachep
== NULL
) {
2572 "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
2576 /* Derive version string. */
2577 strcpy(qla2x00_version_str
, QLA2XXX_VERSION
);
2579 strcat(qla2x00_version_str
, "-debug");
2581 qla2xxx_transport_template
=
2582 fc_attach_transport(&qla2xxx_transport_functions
);
2583 if (!qla2xxx_transport_template
)
2586 printk(KERN_INFO
"QLogic Fibre Channel HBA Driver\n");
2587 ret
= pci_module_init(&qla2xxx_pci_driver
);
2589 kmem_cache_destroy(srb_cachep
);
2590 fc_release_transport(qla2xxx_transport_template
);
2596 * qla2x00_module_exit - Module cleanup.
2599 qla2x00_module_exit(void)
2601 pci_unregister_driver(&qla2xxx_pci_driver
);
2602 kmem_cache_destroy(srb_cachep
);
2603 fc_release_transport(qla2xxx_transport_template
);
2606 module_init(qla2x00_module_init
);
2607 module_exit(qla2x00_module_exit
);
2609 MODULE_AUTHOR("QLogic Corporation");
2610 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
2611 MODULE_LICENSE("GPL");
2612 MODULE_VERSION(QLA2XXX_VERSION
);