linux-kernel - [PATCH 3/6] scsi: hisi_sas: Add bitmaps_alloc_v3

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Message-ID: <1571926881-75524-4-git-send-email-john.garry@huawei.com>
Date:   Thu, 24 Oct 2019 22:21:18 +0800
From:   John Garry <john.garry@...wei.com>
To:     <jejb@...ux.vnet.ibm.com>, <martin.petersen@...cle.com>
CC:     <linux-scsi@...r.kernel.org>, <linuxarm@...wei.com>,
        <linux-kernel@...r.kernel.org>, <hare@...e.com>,
        <ming.lei@...hat.com>, "John Garry" <john.garry@...wei.com>
Subject: [PATCH 3/6] scsi: hisi_sas: Add bitmaps_alloc_v3_hw()

We will want to make this non-generic in future.

Signed-off-by: John Garry <john.garry@...wei.com>
---
 drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
index 2ae7070db41a..a46717efb870 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
@@ -556,6 +556,13 @@ static u32 hisi_sas_phy_read32(struct hisi_hba *hisi_hba,
 	readl_poll_timeout_atomic(regs, val, cond, delay_us, timeout_us);\
 })
 
+static int bitmaps_alloc_v3_hw(struct hisi_hba *hisi_hba)
+{
+	return sbitmap_init_node(&hisi_hba->slot_index_tags,
+				 HISI_SAS_UNRESERVED_IPTT, -1,
+				 GFP_KERNEL, dev_to_node(hisi_hba->dev));
+}
+
 static void init_reg_v3_hw(struct hisi_hba *hisi_hba)
 {
 	int i;
@@ -3083,6 +3090,7 @@ static struct scsi_host_template sht_v3_hw = {
 static const struct hisi_sas_hw hisi_sas_v3_hw = {
 	.hw_init = hisi_sas_v3_init,
 	.setup_itct = setup_itct_v3_hw,
+	.bitmaps_alloc = bitmaps_alloc_v3_hw,
 	.get_wideport_bitmap = get_wideport_bitmap_v3_hw,
 	.complete_hdr_size = sizeof(struct hisi_sas_complete_v3_hdr),
 	.clear_itct = clear_itct_v3_hw,
-- 
2.17.1