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Groups > linux.kernel > #1659884

[PATCH v4 20/23] scsi: hisi_sas: add get_wideport_bitmap_v3_hw()

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From: Xiang Chen <chenxiang66@hisilicon.com>

Add code for interface get_wideport_bitmap.

Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
---
 drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
index 2fb2455..84305c9 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
@@ -629,6 +629,18 @@ static void sl_notify_v3_hw(struct hisi_hba *hisi_hba, int phy_no)
 	hisi_sas_phy_write32(hisi_hba, phy_no, SL_CONTROL, sl_control);
 }
 
+static int get_wideport_bitmap_v3_hw(struct hisi_hba *hisi_hba, int port_id)
+{
+	int i, bitmap = 0;
+	u32 phy_port_num_ma = hisi_sas_read32(hisi_hba, PHY_PORT_NUM_MA);
+
+	for (i = 0; i < hisi_hba->n_phy; i++)
+		if (((phy_port_num_ma >> (i * 4)) & 0xf) == port_id)
+			bitmap |= 1 << i;
+
+	return bitmap;
+}
+
 /**
  * The callpath to this function and upto writing the write
  * queue pointer should be safe from interruption.
@@ -1575,6 +1587,7 @@ static int hisi_sas_v3_init(struct hisi_hba *hisi_hba)
 	.hw_init = hisi_sas_v3_init,
 	.setup_itct = setup_itct_v3_hw,
 	.max_command_entries = HISI_SAS_COMMAND_ENTRIES_V3_HW,
+	.get_wideport_bitmap = get_wideport_bitmap_v3_hw,
 	.complete_hdr_size = sizeof(struct hisi_sas_complete_v3_hdr),
 	.free_device = free_device_v3_hw,
 	.sl_notify = sl_notify_v3_hw,
-- 
1.9.1

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[PATCH v4 00/23] hisi_sas: hip08 support John Garry <john.garry@huawei.com> - 2017-06-07 17:00 +0200
  [PATCH v4 11/23] scsi: hisi_sas: add v3 hw init John Garry <john.garry@huawei.com> - 2017-06-07 17:00 +0200
  [PATCH v4 03/23] scsi: hisi_sas: optimise the usage of hisi_hba.lock John Garry <john.garry@huawei.com> - 2017-06-07 17:00 +0200
  [PATCH v4 15/23] scsi: hisi_sas: add v3 code to send SSP frame John Garry <john.garry@huawei.com> - 2017-06-07 17:00 +0200
  [PATCH v4 07/23] scsi: hisi_sas: add pci_dev in hisi_hba struct John Garry <john.garry@huawei.com> - 2017-06-07 17:00 +0200
  [PATCH v4 20/23] scsi: hisi_sas: add get_wideport_bitmap_v3_hw() John Garry <john.garry@huawei.com> - 2017-06-07 17:00 +0200
  [PATCH v4 23/23] scsi: hisi_sas: modify internal abort dev flow for v3 hw John Garry <john.garry@huawei.com> - 2017-06-07 17:00 +0200
  [PATCH v4 21/23] scsi: hisi_sas: Add v3 code to support ECC and AXI bus fatal error John Garry <john.garry@huawei.com> - 2017-06-07 17:00 +0200
  [PATCH v4 10/23] scsi: hisi_sas: add initialisation for v3 pci-based controller John Garry <john.garry@huawei.com> - 2017-06-07 17:00 +0200
  [PATCH v4 19/23] scsi: hisi_sas: add v3 code to send internal abort command John Garry <john.garry@huawei.com> - 2017-06-07 17:00 +0200
  [PATCH v4 04/23] scsi: hisi_sas: relocate get_ata_protocol() John Garry <john.garry@huawei.com> - 2017-06-07 17:00 +0200
  [PATCH v4 02/23] scsi: hisi_sas: define hisi_sas_device.device_id as int John Garry <john.garry@huawei.com> - 2017-06-07 17:00 +0200
  [PATCH v4 12/23] scsi: hisi_sas: add v3 hw PHY init John Garry <john.garry@huawei.com> - 2017-06-07 17:00 +0200
  [PATCH v4 17/23] scsi: hisi_sas: add v3 code to send ATA frame John Garry <john.garry@huawei.com> - 2017-06-07 17:00 +0200
  [PATCH v4 16/23] scsi: hisi_sas: add v3 code to send SMP frame John Garry <john.garry@huawei.com> - 2017-06-07 17:00 +0200
  [PATCH v4 01/23] scsi: hisi_sas: fix timeout check in hisi_sas_internal_task_abort() John Garry <john.garry@huawei.com> - 2017-06-07 17:00 +0200
  [PATCH v4 06/23] scsi: hisi_sas: relocate get_ncq_tag_v2_hw() John Garry <john.garry@huawei.com> - 2017-06-07 17:00 +0200
  [PATCH v4 13/23] scsi: hisi_sas: add phy up/down/bcast and channel ISR John Garry <john.garry@huawei.com> - 2017-06-07 17:00 +0200
  [PATCH v4 18/23] scsi: hisi_sas: add v3 code for itct setup and free John Garry <john.garry@huawei.com> - 2017-06-07 17:00 +0200
  [PATCH v4 22/23] scsi: hisi_sas: add v3 code to fill some more hw function pointers John Garry <john.garry@huawei.com> - 2017-06-07 17:00 +0200
  [PATCH v4 09/23] scsi: hisi_sas: add skeleton v3 hw driver John Garry <john.garry@huawei.com> - 2017-06-07 17:00 +0200

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