scsi: hisi_sas: modify hard reset for directed-attached disk
Correctly set registers in v2 for root PHY hardreset for directly attached disk. Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com> Signed-off-by: John Garry <john.garry@huawei.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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@ -207,6 +207,8 @@
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#define TXID_AUTO (PORT_BASE + 0xb8)
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#define TXID_AUTO_CT3_OFF 1
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#define TXID_AUTO_CT3_MSK (0x1 << TXID_AUTO_CT3_OFF)
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#define TX_HARDRST_OFF 2
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#define TX_HARDRST_MSK (0x1 << TX_HARDRST_OFF)
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#define RX_IDAF_DWORD0 (PORT_BASE + 0xc4)
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#define RX_IDAF_DWORD1 (PORT_BASE + 0xc8)
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#define RX_IDAF_DWORD2 (PORT_BASE + 0xcc)
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@ -1078,7 +1080,15 @@ static void stop_phy_v2_hw(struct hisi_hba *hisi_hba, int phy_no)
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static void phy_hard_reset_v2_hw(struct hisi_hba *hisi_hba, int phy_no)
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{
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struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no];
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u32 txid_auto;
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stop_phy_v2_hw(hisi_hba, phy_no);
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if (phy->identify.device_type == SAS_END_DEVICE) {
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txid_auto = hisi_sas_phy_read32(hisi_hba, phy_no, TXID_AUTO);
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hisi_sas_phy_write32(hisi_hba, phy_no, TXID_AUTO,
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txid_auto | TX_HARDRST_MSK);
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}
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msleep(100);
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start_phy_v2_hw(hisi_hba, phy_no);
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}
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