diff options
Diffstat (limited to 'drivers/scsi/qla2xxx/qla_os.c')
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_os.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index ce7cf7750f62..f76ae8a64ea9 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -15,6 +15,8 @@ #include <linux/blk-mq-pci.h> #include <linux/refcount.h> #include <linux/crash_dump.h> +#include <linux/trace_events.h> +#include <linux/trace.h> #include <scsi/scsi_tcq.h> #include <scsi/scsicam.h> @@ -35,6 +37,8 @@ static int apidev_major; */ struct kmem_cache *srb_cachep; +struct trace_array *qla_trc_array; + int ql2xfulldump_on_mpifail; module_param(ql2xfulldump_on_mpifail, int, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(ql2xfulldump_on_mpifail, @@ -117,6 +121,11 @@ MODULE_PARM_DESC(ql2xextended_error_logging, "ql2xextended_error_logging=1).\n" "\t\tDo LOGICAL OR of the value to enable more than one level"); +int ql2xextended_error_logging_ktrace = 1; +module_param(ql2xextended_error_logging_ktrace, int, S_IRUGO|S_IWUSR); +MODULE_PARM_DESC(ql2xextended_error_logging_ktrace, + "Same BIT definiton as ql2xextended_error_logging, but used to control logging to kernel trace buffer (default=1).\n"); + int ql2xshiftctondsd = 6; module_param(ql2xshiftctondsd, int, S_IRUGO); MODULE_PARM_DESC(ql2xshiftctondsd, @@ -2839,6 +2848,27 @@ static void qla2x00_iocb_work_fn(struct work_struct *work) spin_unlock_irqrestore(&vha->work_lock, flags); } +static void +qla_trace_init(void) +{ + qla_trc_array = trace_array_get_by_name("qla2xxx"); + if (!qla_trc_array) { + ql_log(ql_log_fatal, NULL, 0x0001, + "Unable to create qla2xxx trace instance, instance logging will be disabled.\n"); + return; + } + + QLA_TRACE_ENABLE(qla_trc_array); +} + +static void +qla_trace_uninit(void) +{ + if (!qla_trc_array) + return; + trace_array_put(qla_trc_array); +} + /* * PCI driver interface */ @@ -8181,6 +8211,8 @@ qla2x00_module_init(void) BUILD_BUG_ON(sizeof(sw_info_t) != 32); BUILD_BUG_ON(sizeof(target_id_t) != 2); + qla_trace_init(); + /* Allocate cache for SRBs. */ srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0, SLAB_HWCACHE_ALIGN, NULL); @@ -8259,6 +8291,8 @@ qlt_exit: destroy_cache: kmem_cache_destroy(srb_cachep); + + qla_trace_uninit(); return ret; } @@ -8277,6 +8311,7 @@ qla2x00_module_exit(void) fc_release_transport(qla2xxx_transport_template); qlt_exit(); kmem_cache_destroy(srb_cachep); + qla_trace_uninit(); } module_init(qla2x00_module_init); |