linux-kernel - [PATCH 5.15 656/846] scsi: mpi3mr: Fixes around reply request queues

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Date:   Mon, 24 Jan 2022 19:42:53 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Sreekanth Reddy <sreekanth.reddy@...adcom.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.15 656/846] scsi: mpi3mr: Fixes around reply request queues

From: Sreekanth Reddy <sreekanth.reddy@...adcom.com>

[ Upstream commit 243bcc8efdb1f44b1a1d415e6821a246714c68ce ]

Set reply queue depth of 1K for B0 and 4K for A0.

While freeing the segmented request queues use the actual queue depth that
is used while creating them.

Link: https://lore.kernel.org/r/20211220141159.16117-25-sreekanth.reddy@broadcom.com
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@...adcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@...cle.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/scsi/mpi3mr/mpi3mr.h    | 3 ++-
 drivers/scsi/mpi3mr/mpi3mr_fw.c | 4 +++-
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/mpi3mr/mpi3mr.h b/drivers/scsi/mpi3mr/mpi3mr.h
index 9787b53a2b598..2cc42432bd0c0 100644
--- a/drivers/scsi/mpi3mr/mpi3mr.h
+++ b/drivers/scsi/mpi3mr/mpi3mr.h
@@ -79,7 +79,8 @@ extern int prot_mask;
 
 /* Operational queue management definitions */
 #define MPI3MR_OP_REQ_Q_QD		512
-#define MPI3MR_OP_REP_Q_QD		4096
+#define MPI3MR_OP_REP_Q_QD		1024
+#define MPI3MR_OP_REP_Q_QD4K		4096
 #define MPI3MR_OP_REQ_Q_SEG_SIZE	4096
 #define MPI3MR_OP_REP_Q_SEG_SIZE	4096
 #define MPI3MR_MAX_SEG_LIST_SIZE	4096
diff --git a/drivers/scsi/mpi3mr/mpi3mr_fw.c b/drivers/scsi/mpi3mr/mpi3mr_fw.c
index 4a8316c6bd41a..5af36c54cb596 100644
--- a/drivers/scsi/mpi3mr/mpi3mr_fw.c
+++ b/drivers/scsi/mpi3mr/mpi3mr_fw.c
@@ -1278,7 +1278,7 @@ static void mpi3mr_free_op_req_q_segments(struct mpi3mr_ioc *mrioc, u16 q_idx)
 			mrioc->op_reply_qinfo[q_idx].q_segment_list = NULL;
 		}
 	} else
-		size = mrioc->req_qinfo[q_idx].num_requests *
+		size = mrioc->req_qinfo[q_idx].segment_qd *
 		    mrioc->facts.op_req_sz;
 
 	for (j = 0; j < mrioc->req_qinfo[q_idx].num_segments; j++) {
@@ -1565,6 +1565,8 @@ static int mpi3mr_create_op_reply_q(struct mpi3mr_ioc *mrioc, u16 qidx)
 
 	reply_qid = qidx + 1;
 	op_reply_q->num_replies = MPI3MR_OP_REP_Q_QD;
+	if (!mrioc->pdev->revision)
+		op_reply_q->num_replies = MPI3MR_OP_REP_Q_QD4K;
 	op_reply_q->ci = 0;
 	op_reply_q->ephase = 1;
 	atomic_set(&op_reply_q->pend_ios, 0);
-- 
2.34.1