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Diffstat (limited to 'drivers/scsi/esas2r/esas2r_int.c')
-rw-r--r--drivers/scsi/esas2r/esas2r_int.c97
1 files changed, 49 insertions, 48 deletions
diff --git a/drivers/scsi/esas2r/esas2r_int.c b/drivers/scsi/esas2r/esas2r_int.c
index c2d4ff57c5c3..f16d6bcf9bb6 100644
--- a/drivers/scsi/esas2r/esas2r_int.c
+++ b/drivers/scsi/esas2r/esas2r_int.c
@@ -96,7 +96,7 @@ irqreturn_t esas2r_interrupt(int irq, void *dev_id)
if (!esas2r_adapter_interrupt_pending(a))
return IRQ_NONE;
- esas2r_lock_set_flags(&a->flags2, AF2_INT_PENDING);
+ set_bit(AF2_INT_PENDING, &a->flags2);
esas2r_schedule_tasklet(a);
return IRQ_HANDLED;
@@ -317,9 +317,10 @@ void esas2r_do_deferred_processes(struct esas2r_adapter *a)
* = 2 - can start any request
*/
- if (a->flags & (AF_CHPRST_PENDING | AF_FLASHING))
+ if (test_bit(AF_CHPRST_PENDING, &a->flags) ||
+ test_bit(AF_FLASHING, &a->flags))
startreqs = 0;
- else if (a->flags & AF_DISC_PENDING)
+ else if (test_bit(AF_DISC_PENDING, &a->flags))
startreqs = 1;
atomic_inc(&a->disable_cnt);
@@ -367,7 +368,7 @@ void esas2r_do_deferred_processes(struct esas2r_adapter *a)
* Flashing could have been set by last local
* start
*/
- if (a->flags & AF_FLASHING)
+ if (test_bit(AF_FLASHING, &a->flags))
break;
}
}
@@ -404,7 +405,7 @@ void esas2r_process_adapter_reset(struct esas2r_adapter *a)
dc->disc_evt = 0;
- esas2r_lock_clear_flags(&a->flags, AF_DISC_IN_PROG);
+ clear_bit(AF_DISC_IN_PROG, &a->flags);
}
/*
@@ -425,7 +426,7 @@ void esas2r_process_adapter_reset(struct esas2r_adapter *a)
a->last_write =
a->last_read = a->list_size - 1;
- esas2r_lock_set_flags(&a->flags, AF_COMM_LIST_TOGGLE);
+ set_bit(AF_COMM_LIST_TOGGLE, &a->flags);
/* Kill all the requests on the active list */
list_for_each(element, &a->defer_list) {
@@ -470,7 +471,7 @@ static void esas2r_process_bus_reset(struct esas2r_adapter *a)
if (atomic_read(&a->disable_cnt) == 0)
esas2r_do_deferred_processes(a);
- esas2r_lock_clear_flags(&a->flags, AF_OS_RESET);
+ clear_bit(AF_OS_RESET, &a->flags);
esas2r_trace_exit();
}
@@ -478,10 +479,10 @@ static void esas2r_process_bus_reset(struct esas2r_adapter *a)
static void esas2r_chip_rst_needed_during_tasklet(struct esas2r_adapter *a)
{
- esas2r_lock_clear_flags(&a->flags, AF_CHPRST_NEEDED);
- esas2r_lock_clear_flags(&a->flags, AF_BUSRST_NEEDED);
- esas2r_lock_clear_flags(&a->flags, AF_BUSRST_DETECTED);
- esas2r_lock_clear_flags(&a->flags, AF_BUSRST_PENDING);
+ clear_bit(AF_CHPRST_NEEDED, &a->flags);
+ clear_bit(AF_BUSRST_NEEDED, &a->flags);
+ clear_bit(AF_BUSRST_DETECTED, &a->flags);
+ clear_bit(AF_BUSRST_PENDING, &a->flags);
/*
* Make sure we don't get attempt more than 3 resets
* when the uptime between resets does not exceed one
@@ -507,10 +508,10 @@ static void esas2r_chip_rst_needed_during_tasklet(struct esas2r_adapter *a)
* prevent the heartbeat from trying to recover.
*/
- esas2r_lock_set_flags(&a->flags, AF_DEGRADED_MODE);
- esas2r_lock_set_flags(&a->flags, AF_DISABLED);
- esas2r_lock_clear_flags(&a->flags, AF_CHPRST_PENDING);
- esas2r_lock_clear_flags(&a->flags, AF_DISC_PENDING);
+ set_bit(AF_DEGRADED_MODE, &a->flags);
+ set_bit(AF_DISABLED, &a->flags);
+ clear_bit(AF_CHPRST_PENDING, &a->flags);
+ clear_bit(AF_DISC_PENDING, &a->flags);
esas2r_disable_chip_interrupts(a);
a->int_mask = 0;
@@ -519,18 +520,17 @@ static void esas2r_chip_rst_needed_during_tasklet(struct esas2r_adapter *a)
esas2r_log(ESAS2R_LOG_CRIT,
"Adapter disabled because of hardware failure");
} else {
- u32 flags =
- esas2r_lock_set_flags(&a->flags, AF_CHPRST_STARTED);
+ bool alrdyrst = test_and_set_bit(AF_CHPRST_STARTED, &a->flags);
- if (!(flags & AF_CHPRST_STARTED))
+ if (!alrdyrst)
/*
* Only disable interrupts if this is
* the first reset attempt.
*/
esas2r_disable_chip_interrupts(a);
- if ((a->flags & AF_POWER_MGT) && !(a->flags & AF_FIRST_INIT) &&
- !(flags & AF_CHPRST_STARTED)) {
+ if ((test_bit(AF_POWER_MGT, &a->flags)) &&
+ !test_bit(AF_FIRST_INIT, &a->flags) && !alrdyrst) {
/*
* Don't reset the chip on the first
* deferred power up attempt.
@@ -543,10 +543,10 @@ static void esas2r_chip_rst_needed_during_tasklet(struct esas2r_adapter *a)
/* Kick off the reinitialization */
a->chip_uptime += ESAS2R_CHP_UPTIME_CNT;
a->chip_init_time = jiffies_to_msecs(jiffies);
- if (!(a->flags & AF_POWER_MGT)) {
+ if (!test_bit(AF_POWER_MGT, &a->flags)) {
esas2r_process_adapter_reset(a);
- if (!(flags & AF_CHPRST_STARTED)) {
+ if (!alrdyrst) {
/* Remove devices now that I/O is cleaned up. */
a->prev_dev_cnt =
esas2r_targ_db_get_tgt_cnt(a);
@@ -560,38 +560,37 @@ static void esas2r_chip_rst_needed_during_tasklet(struct esas2r_adapter *a)
static void esas2r_handle_chip_rst_during_tasklet(struct esas2r_adapter *a)
{
- while (a->flags & AF_CHPRST_DETECTED) {
+ while (test_bit(AF_CHPRST_DETECTED, &a->flags)) {
/*
* Balance the enable in esas2r_initadapter_hw.
* Esas2r_power_down already took care of it for power
* management.
*/
- if (!(a->flags & AF_DEGRADED_MODE) && !(a->flags &
- AF_POWER_MGT))
+ if (!test_bit(AF_DEGRADED_MODE, &a->flags) &&
+ !test_bit(AF_POWER_MGT, &a->flags))
esas2r_disable_chip_interrupts(a);
/* Reinitialize the chip. */
esas2r_check_adapter(a);
esas2r_init_adapter_hw(a, 0);
- if (a->flags & AF_CHPRST_NEEDED)
+ if (test_bit(AF_CHPRST_NEEDED, &a->flags))
break;
- if (a->flags & AF_POWER_MGT) {
+ if (test_bit(AF_POWER_MGT, &a->flags)) {
/* Recovery from power management. */
- if (a->flags & AF_FIRST_INIT) {
+ if (test_bit(AF_FIRST_INIT, &a->flags)) {
/* Chip reset during normal power up */
esas2r_log(ESAS2R_LOG_CRIT,
"The firmware was reset during a normal power-up sequence");
} else {
/* Deferred power up complete. */
- esas2r_lock_clear_flags(&a->flags,
- AF_POWER_MGT);
+ clear_bit(AF_POWER_MGT, &a->flags);
esas2r_send_reset_ae(a, true);
}
} else {
/* Recovery from online chip reset. */
- if (a->flags & AF_FIRST_INIT) {
+ if (test_bit(AF_FIRST_INIT, &a->flags)) {
/* Chip reset during driver load */
} else {
/* Chip reset after driver load */
@@ -602,14 +601,14 @@ static void esas2r_handle_chip_rst_during_tasklet(struct esas2r_adapter *a)
"Recovering from a chip reset while the chip was online");
}
- esas2r_lock_clear_flags(&a->flags, AF_CHPRST_STARTED);
+ clear_bit(AF_CHPRST_STARTED, &a->flags);
esas2r_enable_chip_interrupts(a);
/*
* Clear this flag last! this indicates that the chip has been
* reset already during initialization.
*/
- esas2r_lock_clear_flags(&a->flags, AF_CHPRST_DETECTED);
+ clear_bit(AF_CHPRST_DETECTED, &a->flags);
}
}
@@ -617,26 +616,28 @@ static void esas2r_handle_chip_rst_during_tasklet(struct esas2r_adapter *a)
/* Perform deferred tasks when chip interrupts are disabled */
void esas2r_do_tasklet_tasks(struct esas2r_adapter *a)
{
- if (a->flags & (AF_CHPRST_NEEDED | AF_CHPRST_DETECTED)) {
- if (a->flags & AF_CHPRST_NEEDED)
+
+ if (test_bit(AF_CHPRST_NEEDED, &a->flags) ||
+ test_bit(AF_CHPRST_DETECTED, &a->flags)) {
+ if (test_bit(AF_CHPRST_NEEDED, &a->flags))
esas2r_chip_rst_needed_during_tasklet(a);
esas2r_handle_chip_rst_during_tasklet(a);
}
- if (a->flags & AF_BUSRST_NEEDED) {
+ if (test_bit(AF_BUSRST_NEEDED, &a->flags)) {
esas2r_hdebug("hard resetting bus");
- esas2r_lock_clear_flags(&a->flags, AF_BUSRST_NEEDED);
+ clear_bit(AF_BUSRST_NEEDED, &a->flags);
- if (a->flags & AF_FLASHING)
- esas2r_lock_set_flags(&a->flags, AF_BUSRST_DETECTED);
+ if (test_bit(AF_FLASHING, &a->flags))
+ set_bit(AF_BUSRST_DETECTED, &a->flags);
else
esas2r_write_register_dword(a, MU_DOORBELL_IN,
DRBL_RESET_BUS);
}
- if (a->flags & AF_BUSRST_DETECTED) {
+ if (test_bit(AF_BUSRST_DETECTED, &a->flags)) {
esas2r_process_bus_reset(a);
esas2r_log_dev(ESAS2R_LOG_WARN,
@@ -645,14 +646,14 @@ void esas2r_do_tasklet_tasks(struct esas2r_adapter *a)
scsi_report_bus_reset(a->host, 0);
- esas2r_lock_clear_flags(&a->flags, AF_BUSRST_DETECTED);
- esas2r_lock_clear_flags(&a->flags, AF_BUSRST_PENDING);
+ clear_bit(AF_BUSRST_DETECTED, &a->flags);
+ clear_bit(AF_BUSRST_PENDING, &a->flags);
esas2r_log(ESAS2R_LOG_WARN, "Bus reset complete");
}
- if (a->flags & AF_PORT_CHANGE) {
- esas2r_lock_clear_flags(&a->flags, AF_PORT_CHANGE);
+ if (test_bit(AF_PORT_CHANGE, &a->flags)) {
+ clear_bit(AF_PORT_CHANGE, &a->flags);
esas2r_targ_db_report_changes(a);
}
@@ -672,10 +673,10 @@ static void esas2r_doorbell_interrupt(struct esas2r_adapter *a, u32 doorbell)
esas2r_write_register_dword(a, MU_DOORBELL_OUT, doorbell);
if (doorbell & DRBL_RESET_BUS)
- esas2r_lock_set_flags(&a->flags, AF_BUSRST_DETECTED);
+ set_bit(AF_BUSRST_DETECTED, &a->flags);
if (doorbell & DRBL_FORCE_INT)
- esas2r_lock_clear_flags(&a->flags, AF_HEARTBEAT);
+ clear_bit(AF_HEARTBEAT, &a->flags);
if (doorbell & DRBL_PANIC_REASON_MASK) {
esas2r_hdebug("*** Firmware Panic ***");
@@ -683,7 +684,7 @@ static void esas2r_doorbell_interrupt(struct esas2r_adapter *a, u32 doorbell)
}
if (doorbell & DRBL_FW_RESET) {
- esas2r_lock_set_flags(&a->flags2, AF2_COREDUMP_AVAIL);
+ set_bit(AF2_COREDUMP_AVAIL, &a->flags2);
esas2r_local_reset_adapter(a);
}
@@ -918,7 +919,7 @@ void esas2r_complete_request(struct esas2r_adapter *a,
{
if (rq->vrq->scsi.function == VDA_FUNC_FLASH
&& rq->vrq->flash.sub_func == VDA_FLASH_COMMIT)
- esas2r_lock_clear_flags(&a->flags, AF_FLASHING);
+ clear_bit(AF_FLASHING, &a->flags);
/* See if we setup a callback to do special processing */