[SCSI] bfa: Serialize the IOC hw semaphore unlock logic.

[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / scsi / bfa / bfad_im.h

diff --git a/drivers/scsi/bfa/bfad_im.h b/drivers/scsi/bfa/bfad_im.h
index 004b6cf848d943288934452237c1cfa2ef8b8cfd..0814367ef101a1c075c0cfd4f5a52bc34dea920d 100644 (file)
--- a/drivers/scsi/bfa/bfad_im.h
+++ b/drivers/scsi/bfa/bfad_im.h
@@ -91,6 +91,7 @@ struct bfad_itnim_s {
        struct fc_rport *fc_rport;
        struct bfa_itnim_s *bfa_itnim;
        u16        scsi_tgt_id;
+       u16        channel;
        u16        queue_work;
        unsigned long   last_ramp_up_time;
        unsigned long   last_queue_full_time;
@@ -166,4 +167,30 @@ irqreturn_t bfad_intx(int irq, void *dev_id);
 int bfad_im_bsg_request(struct fc_bsg_job *job);
 int bfad_im_bsg_timeout(struct fc_bsg_job *job);
 
+/*
+ * Macro to set the SCSI device sdev_bflags - sdev_bflags are used by the
+ * SCSI mid-layer to choose LUN Scanning mode REPORT_LUNS vs. Sequential Scan
+ *
+ * Internally iterate's over all the ITNIM's part of the im_port & set's the
+ * sdev_bflags for the scsi_device associated with LUN #0.
+ */
+#define bfad_reset_sdev_bflags(__im_port, __lunmask_cfg) do {          \
+       struct scsi_device *__sdev = NULL;                              \
+       struct bfad_itnim_s *__itnim = NULL;                            \
+       u32 scan_flags = BLIST_NOREPORTLUN | BLIST_SPARSELUN;           \
+       list_for_each_entry(__itnim, &((__im_port)->itnim_mapped_list), \
+                           list_entry) {                               \
+               __sdev = scsi_device_lookup((__im_port)->shost,         \
+                                           __itnim->channel,           \
+                                           __itnim->scsi_tgt_id, 0);   \
+               if (__sdev) {                                           \
+                       if ((__lunmask_cfg) == BFA_TRUE)                \
+                               __sdev->sdev_bflags |= scan_flags;      \
+                       else                                            \
+                               __sdev->sdev_bflags &= ~scan_flags;     \
+                       scsi_device_put(__sdev);                        \
+               }                                                       \
+       }                                                               \
+} while (0)
+
 #endif