Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

[mirror_ubuntu-focal-kernel.git] / drivers / scsi / lpfc / lpfc_attr.c

diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c
index bd7a72f6cdbedd94a6af4fbae9ea4e09e8d48410..25aa7a53d255ee23057ef96a87ff665a585bb12c 100644 (file)
--- a/drivers/scsi/lpfc/lpfc_attr.c
+++ b/drivers/scsi/lpfc/lpfc_attr.c
@@ -5706,6 +5706,19 @@ LPFC_ATTR_RW(nvme_oas, 0, 0, 1,
 LPFC_ATTR_RW(nvme_embed_cmd, 1, 0, 2,
             "Embed NVME Command in WQE");
 
+/*
+ * lpfc_fcp_mq_threshold: Set the maximum number of Hardware Queues
+ * the driver will advertise it supports to the SCSI layer.
+ *
+ *      0    = Set nr_hw_queues by the number of CPUs or HW queues.
+ *      1,128 = Manually specify the maximum nr_hw_queue value to be set,
+ *
+ * Value range is [0,256]. Default value is 8.
+ */
+LPFC_ATTR_R(fcp_mq_threshold, LPFC_FCP_MQ_THRESHOLD_DEF,
+           LPFC_FCP_MQ_THRESHOLD_MIN, LPFC_FCP_MQ_THRESHOLD_MAX,
+           "Set the number of SCSI Queues advertised");
+
 /*
  * lpfc_hdw_queue: Set the number of Hardware Queues the driver
  * will advertise it supports to the NVME and  SCSI layers. This also
@@ -6028,6 +6041,7 @@ struct device_attribute *lpfc_hba_attrs[] = {
        &dev_attr_lpfc_cq_poll_threshold,
        &dev_attr_lpfc_cq_max_proc_limit,
        &dev_attr_lpfc_fcp_cpu_map,
+       &dev_attr_lpfc_fcp_mq_threshold,
        &dev_attr_lpfc_hdw_queue,
        &dev_attr_lpfc_irq_chann,
        &dev_attr_lpfc_suppress_rsp,
@@ -7156,6 +7170,7 @@ lpfc_get_cfgparam(struct lpfc_hba *phba)
        /* Initialize first burst. Target vs Initiator are different. */
        lpfc_nvme_enable_fb_init(phba, lpfc_nvme_enable_fb);
        lpfc_nvmet_fb_size_init(phba, lpfc_nvmet_fb_size);
+       lpfc_fcp_mq_threshold_init(phba, lpfc_fcp_mq_threshold);
        lpfc_hdw_queue_init(phba, lpfc_hdw_queue);
        lpfc_irq_chann_init(phba, lpfc_irq_chann);
        lpfc_enable_bbcr_init(phba, lpfc_enable_bbcr);