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scsi: hisi_sas: only process broadcast change in phy_bcast_v2_hw()

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There are many BROADCAST primitives generated by the host.
We are only interested in BROADCAST (CHANGE) primitives currently,
so only process this.

Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Reviewed-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Xiang Chen 2016-11-07 20:48:32 +08:00 committed by Martin K. Petersen
parent c70f1fb755
commit 85080a253a
1 changed files with 7 additions and 1 deletions
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8
drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
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@ -194,6 +194,9 @@
#define SL_CONTROL_NOTIFY_EN_MSK (0x1 << SL_CONTROL_NOTIFY_EN_OFF)
#define SL_CONTROL_CTA_OFF 17
#define SL_CONTROL_CTA_MSK (0x1 << SL_CONTROL_CTA_OFF)
#define RX_PRIMS_STATUS (PORT_BASE + 0x98)
#define RX_BCAST_CHG_OFF 1
#define RX_BCAST_CHG_MSK (0x1 << RX_BCAST_CHG_OFF)
#define TX_ID_DWORD0 (PORT_BASE + 0x9c)
#define TX_ID_DWORD1 (PORT_BASE + 0xa0)
#define TX_ID_DWORD2 (PORT_BASE + 0xa4)
@ -2044,9 +2047,12 @@ static void phy_bcast_v2_hw(int phy_no, struct hisi_hba *hisi_hba)
struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no];
struct asd_sas_phy *sas_phy = &phy->sas_phy;
struct sas_ha_struct *sas_ha = &hisi_hba->sha;
u32 bcast_status;
hisi_sas_phy_write32(hisi_hba, phy_no, SL_RX_BCAST_CHK_MSK, 1);
sas_ha->notify_port_event(sas_phy, PORTE_BROADCAST_RCVD);
bcast_status = hisi_sas_phy_read32(hisi_hba, phy_no, RX_PRIMS_STATUS);
if (bcast_status & RX_BCAST_CHG_MSK)
sas_ha->notify_port_event(sas_phy, PORTE_BROADCAST_RCVD);
hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0,
CHL_INT0_SL_RX_BCST_ACK_MSK);
hisi_sas_phy_write32(hisi_hba, phy_no, SL_RX_BCAST_CHK_MSK, 0);