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scsi: hisi_sas: add get_wideport_bitmap_v3_hw() 

Add code for interface get_wideport_bitmap.

Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Xiang Chen 2017-06-14 23:33:30 +08:00 committed by Martin K. Petersen
parent 4de0ca69e5
commit f771d3b08f
1 changed files with 13 additions and 0 deletions
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13
drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
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@ -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,