From: Kelvin Cao <kelvin.cao@microchip.com>
To: Kurt Schwemmer <kurt.schwemmer@microsemi.com>,
Logan Gunthorpe <logang@deltatee.com>,
Jon Mason <jdmason@kudzu.us>, Dave Jiang <dave.jiang@intel.com>,
Allen Hubbe <allenbh@gmail.com>,
linux-pci@vger.kernel.org, linux-ntb@googlegroups.com,
linux-kernel@vger.kernel.org
Cc: Kelvin Cao <kelvin.cao@microchip.com>,
kelvincao@outlook.com, Jeremy Pallotta <jmpallotta@gmail.com>
Subject: [PATCH 3/6] ntb_hw_switchtec: AND with the part_map for a valid tpart_vec
Date: Thu, 23 Dec 2021 17:23:31 -0800 [thread overview]
Message-ID: <20211224012334.89173-4-kelvin.cao@microchip.com> (raw)
In-Reply-To: <20211224012334.89173-1-kelvin.cao@microchip.com>
From: Jeremy Pallotta <jmpallotta@gmail.com>
Some firmware versions return 1 in the target partition vector for
undefined partitions. AND with the part_map to give a valid tpart_vec.
Signed-off-by: Jeremy Pallotta <jmpallotta@gmail.com>
Signed-off-by: Kelvin Cao <kelvin.cao@microchip.com>
---
drivers/ntb/hw/mscc/ntb_hw_switchtec.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/ntb/hw/mscc/ntb_hw_switchtec.c b/drivers/ntb/hw/mscc/ntb_hw_switchtec.c
index ec9cb6c81eda..25302a384a7d 100644
--- a/drivers/ntb/hw/mscc/ntb_hw_switchtec.c
+++ b/drivers/ntb/hw/mscc/ntb_hw_switchtec.c
@@ -858,6 +858,7 @@ static int switchtec_ntb_init_sndev(struct switchtec_ntb *sndev)
tpart_vec |= ioread32(&sndev->mmio_ntb->ntp_info[self].target_part_low);
part_map = ioread64(&sndev->mmio_ntb->ep_map);
+ tpart_vec &= part_map;
part_map &= ~(1 << sndev->self_partition);
if (!tpart_vec) {
--
2.25.1
next prev parent reply other threads:[~2021-12-24 1:25 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-24 1:23 [PATCH 0/6] Switchtec NTB Fixes and Improvements Kelvin Cao
2021-12-24 1:23 ` [PATCH 1/6] ntb_hw_switchtec: Fix pff ioread to read into mmio_part_cfg_all Kelvin Cao
2021-12-24 1:23 ` [PATCH 2/6] ntb_hw_switchtec: Fix bug with more than 32 partitions Kelvin Cao
2021-12-24 1:23 ` Kelvin Cao [this message]
2021-12-24 1:23 ` [PATCH 4/6] ntb_hw_switchtec: Update the way of getting VEP instance ID Kelvin Cao
2021-12-24 1:23 ` [PATCH 5/6] ntb_hw_switchtec: Remove code for disabling ID protection Kelvin Cao
2021-12-24 1:23 ` [PATCH 6/6] ntb_hw_switchtec: Fix a minor issue in config_req_id_table() Kelvin Cao
2022-01-04 16:55 ` [PATCH 0/6] Switchtec NTB Fixes and Improvements Logan Gunthorpe
2022-01-04 21:28 ` Kelvin.Cao
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