ntb.lists.linux.dev archive mirror
 help / color / mirror / Atom feed
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


  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

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20211224012334.89173-4-kelvin.cao@microchip.com \
    --to=kelvin.cao@microchip.com \
    --cc=allenbh@gmail.com \
    --cc=dave.jiang@intel.com \
    --cc=jdmason@kudzu.us \
    --cc=jmpallotta@gmail.com \
    --cc=kelvincao@outlook.com \
    --cc=kurt.schwemmer@microsemi.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-ntb@googlegroups.com \
    --cc=linux-pci@vger.kernel.org \
    --cc=logang@deltatee.com \
    --subject='Re: [PATCH 3/6] ntb_hw_switchtec: AND with the part_map for a valid tpart_vec' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).