linux-kernel - [GIT PULL] SCSI fixes for 5.3-rc7

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Message-ID: <1567802352.26275.3.camel@HansenPartnership.com>
Date:   Fri, 06 Sep 2019 16:39:12 -0400
From:   James Bottomley <James.Bottomley@...senPartnership.com>
To:     Andrew Morton <akpm@...ux-foundation.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     linux-scsi <linux-scsi@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: [GIT PULL] SCSI fixes for 5.3-rc7

Just a single lpfc fix adjusting the number of available queues for
high CPU count systems.

The patch is available here:

git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi.git scsi-fixes

The short changelog is:

James Smart (1):
      scsi: lpfc: Raise config max for lpfc_fcp_mq_threshold variable

And the diffstat:

 drivers/scsi/lpfc/lpfc_attr.c | 2 +-
 drivers/scsi/lpfc/lpfc_sli4.h | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

With full diff below.

James

---

diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c
index 8d8c495b5b60..d65558619ab0 100644
--- a/drivers/scsi/lpfc/lpfc_attr.c
+++ b/drivers/scsi/lpfc/lpfc_attr.c
@@ -5715,7 +5715,7 @@ LPFC_ATTR_RW(nvme_embed_cmd, 1, 0, 2,
  *      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 [0,128]. Default value is 8.
+ * 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,
diff --git a/drivers/scsi/lpfc/lpfc_sli4.h b/drivers/scsi/lpfc/lpfc_sli4.h
index 329f7aa7e169..a81ef0293696 100644
--- a/drivers/scsi/lpfc/lpfc_sli4.h
+++ b/drivers/scsi/lpfc/lpfc_sli4.h
@@ -46,7 +46,7 @@
 
 /* FCP MQ queue count limiting */
 #define LPFC_FCP_MQ_THRESHOLD_MIN	0
-#define LPFC_FCP_MQ_THRESHOLD_MAX	128
+#define LPFC_FCP_MQ_THRESHOLD_MAX	256
 #define LPFC_FCP_MQ_THRESHOLD_DEF	8
 
 /* Common buffer size to accomidate SCSI and NVME IO buffers */