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Commit 04708ff4 authored by Xiang Chen's avatar Xiang Chen Committed by Martin K. Petersen
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scsi: hisi_sas: check SATA FIS when directly attaching SATA device 



Check ERR bit of status to decide whether there is something wrong with
initial register-D2H FIS. If error exists, PHY reset the channel to
restart OOB.

Signed-off-by: default avatarXiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: default avatarJohn Garry <john.garry@huawei.com>
Reviewed-by: default avatarZhangfei Gao <zhangfei.gao@linaro.org>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent ee44bfe4

drivers/scsi/hisi_sas/hisi_sas_v2_hw.c

+10 −0
Original line number Original line Diff line number Diff line
@@ -2537,6 +2537,16 @@ static irqreturn_t sata_int_v2_hw(int irq_no, void *p) 
		goto end;

		goto end;

	}

	}





	/* check ERR bit of Status Register */

	if (fis->status & ATA_ERR) {

		dev_warn(dev, "sata int: phy%d FIS status: 0x%x\n", phy_no,

				fis->status);

		disable_phy_v2_hw(hisi_hba, phy_no);

		enable_phy_v2_hw(hisi_hba, phy_no);

		res = IRQ_NONE;

		goto end;

	}



	if (unlikely(phy_no == 8)) {

	if (unlikely(phy_no == 8)) {

		u32 port_state = hisi_sas_read32(hisi_hba, PORT_STATE);

		u32 port_state = hisi_sas_read32(hisi_hba, PORT_STATE);