linux-kernel - [PATCH v4 10/32] scsi: hisi_sas: add cq structure initialization

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Message-ID: <1447679178-220222-11-git-send-email-john.garry@huawei.com>
Date:	Mon, 16 Nov 2015 21:05:56 +0800
From:	John Garry <john.garry@...wei.com>
To:	<JBottomley@...n.com>, <robh+dt@...nel.org>, <pawel.moll@....com>,
	<mark.rutland@....com>, <ijc+devicetree@...lion.org.uk>,
	<galak@...eaurora.org>, <arnd@...db.de>
CC:	<linux-scsi@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<devicetree@...r.kernel.org>, <linuxarm@...wei.com>,
	<john.garry2@...l.dcu.ie>, <hare@...e.de>, <xuwei5@...ilicon.com>,
	<zhangfei.gao@...aro.org>, <john.garry@...wei.com>
Subject: [PATCH v4 10/32] scsi: hisi_sas: add cq structure initialization

Each completion queue has a structure. This is mainly for
passing to irq handler so we know which queue the irq occured
on.

Signed-off-by: John Garry <john.garry@...wei.com>
---
 drivers/scsi/hisi_sas/hisi_sas.h      | 7 +++++++
 drivers/scsi/hisi_sas/hisi_sas_main.c | 6 ++++++
 2 files changed, 13 insertions(+)

diff --git a/drivers/scsi/hisi_sas/hisi_sas.h b/drivers/scsi/hisi_sas/hisi_sas.h
index 2cd6771..315fe46 100644
--- a/drivers/scsi/hisi_sas/hisi_sas.h
+++ b/drivers/scsi/hisi_sas/hisi_sas.h
@@ -45,6 +45,11 @@ struct hisi_sas_port {
 	struct asd_sas_port	sas_port;
 };
 
+struct hisi_sas_cq {
+	struct hisi_hba *hisi_hba;
+	int	id;
+};
+
 struct hisi_sas_slot {
 };
 
@@ -73,6 +78,8 @@ struct hisi_hba {
 	/* SCSI/SAS glue */
 	struct sas_ha_struct sha;
 	struct Scsi_Host *shost;
+
+	struct hisi_sas_cq cq[HISI_SAS_MAX_QUEUES];
 	struct hisi_sas_phy phy[HISI_SAS_MAX_PHYS];
 	struct hisi_sas_port port[HISI_SAS_MAX_PHYS];
 
diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c
index d7e5b66..d10bf24 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_main.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_main.c
@@ -58,6 +58,12 @@ static int hisi_sas_alloc(struct hisi_hba *hisi_hba, struct Scsi_Host *shost)
 	struct device *dev = &pdev->dev;
 
 	for (i = 0; i < hisi_hba->queue_count; i++) {
+		struct hisi_sas_cq *cq = &hisi_hba->cq[i];
+
+		/* Completion queue structure */
+		cq->id = i;
+		cq->hisi_hba = hisi_hba;
+
 		/* Delivery queue */
 		s = sizeof(struct hisi_sas_cmd_hdr) * HISI_SAS_QUEUE_SLOTS;
 		hisi_hba->cmd_hdr[i] = dma_alloc_coherent(dev, s,
-- 
1.9.1

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