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Commit 5473c060 authored by John Garry's avatar John Garry Committed by Martin K. Petersen
Browse files

hisi_sas: add v2 phy down handler 



Signed-off-by: default avatarJohn Garry <john.garry@huawei.com>
Reviewed-by: default avatarHannes Reinecke <hare@suse.de>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent 7911e66f

drivers/scsi/hisi_sas/hisi_sas_v2_hw.c

+49 −0
Original line number Diff line number Diff line
@@ -628,6 +628,29 @@ static void sl_notify_v2_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_v2_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);

	u32 phy_state = hisi_sas_read32(hisi_hba, PHY_STATE);



	for (i = 0; i < (hisi_hba->n_phy < 9 ? hisi_hba->n_phy : 8); i++)

		if (phy_state & 1 << i)

			if (((phy_port_num_ma >> (i * 4)) & 0xf) == port_id)

				bitmap |= 1 << i;



	if (hisi_hba->n_phy == 9) {

		u32 port_state = hisi_sas_read32(hisi_hba, PORT_STATE);



		if (phy_state & 1 << 8)

			if (((port_state & PORT_STATE_PHY8_PORT_NUM_MSK) >>

			     PORT_STATE_PHY8_PORT_NUM_OFF) == port_id)

				bitmap |= 1 << 9;

	}



	return bitmap;

}



static int phy_up_v2_hw(int phy_no, struct hisi_hba *hisi_hba)

{

	int i, res = 0;
@@ -705,6 +728,25 @@ static int phy_up_v2_hw(int phy_no, struct hisi_hba *hisi_hba) 
	return res;

}



static int phy_down_v2_hw(int phy_no, struct hisi_hba *hisi_hba)

{

	int res = 0;

	u32 phy_cfg, phy_state;



	hisi_sas_phy_write32(hisi_hba, phy_no, PHYCTRL_NOT_RDY_MSK, 1);



	phy_cfg = hisi_sas_phy_read32(hisi_hba, phy_no, PHY_CFG);



	phy_state = hisi_sas_read32(hisi_hba, PHY_STATE);



	hisi_sas_phy_down(hisi_hba, phy_no, (phy_state & 1 << phy_no) ? 1 : 0);



	hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0, CHL_INT0_NOT_RDY_MSK);

	hisi_sas_phy_write32(hisi_hba, phy_no, PHYCTRL_NOT_RDY_MSK, 0);



	return res;

}



static irqreturn_t int_phy_updown_v2_hw(int irq_no, void *p)

{

	struct hisi_hba *hisi_hba = p;
@@ -726,6 +768,12 @@ static irqreturn_t int_phy_updown_v2_hw(int irq_no, void *p) 
					goto end;

				}



			if (irq_value & CHL_INT0_NOT_RDY_MSK)

				/* phy down */

				if (phy_down_v2_hw(phy_no, hisi_hba)) {

					res = IRQ_NONE;

					goto end;

				}

		}

		irq_msk >>= 1;

		phy_no++;
@@ -796,6 +844,7 @@ static int hisi_sas_v2_init(struct hisi_hba *hisi_hba) 
static const struct hisi_sas_hw hisi_sas_v2_hw = {

	.hw_init = hisi_sas_v2_init,

	.sl_notify = sl_notify_v2_hw,

	.get_wideport_bitmap = get_wideport_bitmap_v2_hw,

	.max_command_entries = HISI_SAS_COMMAND_ENTRIES_V2_HW,

	.complete_hdr_size = sizeof(struct hisi_sas_complete_v2_hdr),

};