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Commit f771d3b0 authored by Xiang Chen's avatar Xiang Chen Committed by Martin K. Petersen
Browse files

scsi: hisi_sas: add get_wideport_bitmap_v3_hw() 



Add code for interface get_wideport_bitmap.

Signed-off-by: default avatarJohn Garry <john.garry@huawei.com>
Signed-off-by: default avatarXiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent 4de0ca69

drivers/scsi/hisi_sas/hisi_sas_v3_hw.c

+13 −0
Original line number Diff line number Diff line
@@ -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.
@@ -1550,6 +1562,7 @@ static const struct hisi_sas_hw hisi_sas_v3_hw = { 
	.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,