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scsi: pm80xx: Mask and unmask upper interrupt vectors 32-63

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When upper inbound and outbound queues 32-63 are enabled, we see upper
vectors 32-63 in interrupt service routine. We need corresponding registers
to handle masking and unmasking of these upper interrupts.

To achieve this, we use registers MSGU_ODMR_U(0x34) to mask and
MSGU_ODMR_CLR_U(0x3C) to unmask the interrupts. In these registers bit 0-31
represents interrupt vectors 32-63.

Link: https://lore.kernel.org/r/20220411064603.668448-2-Ajish.Koshy@microchip.com
Fixes: 05c6c029a4 ("scsi: pm80xx: Increase number of supported queues")
Reviewed-by: John Garry <john.garry@huawei.com>
Acked-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Ajish Koshy <Ajish.Koshy@microchip.com>
Signed-off-by: Viswas G <Viswas.G@microchip.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Ajish Koshy 2022-04-11 12:16:02 +05:30 committed by Martin K. Petersen
parent f19fe8f354
commit 294080eacf
1 changed files with 13 additions and 9 deletions
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22
drivers/scsi/pm8001/pm80xx_hwi.c
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@ -1727,10 +1727,11 @@ static void
pm80xx_chip_interrupt_enable(struct pm8001_hba_info *pm8001_ha, u8 vec)
{
#ifdef PM8001_USE_MSIX
u32 mask;
mask = (u32)(1 << vec);
pm8001_cw32(pm8001_ha, 0, MSGU_ODMR_CLR, (u32)(mask & 0xFFFFFFFF));
if (vec < 32)
pm8001_cw32(pm8001_ha, 0, MSGU_ODMR_CLR, 1U << vec);
else
pm8001_cw32(pm8001_ha, 0, MSGU_ODMR_CLR_U,
1U << (vec - 32));
return;
#endif
pm80xx_chip_intx_interrupt_enable(pm8001_ha);
@ -1746,12 +1747,15 @@ static void
pm80xx_chip_interrupt_disable(struct pm8001_hba_info *pm8001_ha, u8 vec)
{
#ifdef PM8001_USE_MSIX
u32 mask;
if (vec == 0xFF)
mask = 0xFFFFFFFF;
if (vec == 0xFF) {
/* disable all vectors 0-31, 32-63 */
pm8001_cw32(pm8001_ha, 0, MSGU_ODMR, 0xFFFFFFFF);
pm8001_cw32(pm8001_ha, 0, MSGU_ODMR_U, 0xFFFFFFFF);
} else if (vec < 32)
pm8001_cw32(pm8001_ha, 0, MSGU_ODMR, 1U << vec);
else
mask = (u32)(1 << vec);
pm8001_cw32(pm8001_ha, 0, MSGU_ODMR, (u32)(mask & 0xFFFFFFFF));
pm8001_cw32(pm8001_ha, 0, MSGU_ODMR_U,
1U << (vec - 32));
return;
#endif
pm80xx_chip_intx_interrupt_disable(pm8001_ha);