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Date: Wed, 17 May 2017 18:49:54 +0800 From: John Garry <john.garry@...wei.com> To: <jejb@...ux.vnet.ibm.com>, <martin.petersen@...cle.com> CC: <john.garry2@...l.dcu.ie>, <linuxarm@...wei.com>, <linux-scsi@...r.kernel.org>, <linux-kernel@...r.kernel.org>, <arnd@...db.de>, Xiang Chen <chenxiang66@...ilicon.com>, John Garry <john.garry@...wei.com> Subject: [PATCH 19/22] scsi: hisi_sas: add get_wideport_bitmap_v3_hw() From: Xiang Chen <chenxiang66@...ilicon.com> Add code for interface get_wide_port_bitmap_v3_hw(). Signed-off-by: John Garry <john.garry@...wei.com> Signed-off-by: Xiang Chen <chenxiang66@...ilicon.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 9d5047e..fa686e5 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c +++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c @@ -614,6 +614,18 @@ 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. @@ -1558,6 +1570,7 @@ static int hisi_sas_v3_init(struct hisi_hba *hisi_hba) .setup_itct = setup_itct_v3_hw, .max_command_entries = HISI_SAS_COMMAND_ENTRIES_V3_HW, .sl_notify = sl_notify_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, .prep_ssp = prep_ssp_v3_hw, -- 1.9.1
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