mirror of https://lore.kernel.org/lkml/
 help / color / mirror / Atom feed
From: Brett Creeley <brett.creeley@amd.com>
To: <linux-kernel@vger.kernel.org>, <netdev@vger.kernel.org>,
	<pabeni@redhat.com>, <kuba@kernel.org>, <edumazet@google.com>,
	<davem@davemloft.net>
Cc: <brett.creeley@amd.com>, <shannon.nelson@amd.com>
Subject: [PATCH net] pds_core: Fix FW recovery detection
Date: Mon, 5 Jun 2023 12:51:16 -0700	[thread overview]
Message-ID: <20230605195116.49653-1-brett.creeley@amd.com> (raw)

Commit 523847df1b37 ("pds_core: add devcmd device interfaces") included
initial support for FW recovery detection. Unfortunately, the ordering
in pdsc_is_fw_good() was incorrect, which was causing FW recovery to be
undetected by the driver. Fix this by making sure to update the cached
fw_status by calling pdsc_is_fw_running() before setting the local FW
gen.

Fixes: 523847df1b37 ("pds_core: add devcmd device interfaces")
Signed-off-by: Shannon Nelson <shannon.nelson@amd.com>
Signed-off-by: Brett Creeley <brett.creeley@amd.com>
---
 drivers/net/ethernet/amd/pds_core/dev.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/amd/pds_core/dev.c b/drivers/net/ethernet/amd/pds_core/dev.c
index f7c597ea5daf..debe5216fe29 100644
--- a/drivers/net/ethernet/amd/pds_core/dev.c
+++ b/drivers/net/ethernet/amd/pds_core/dev.c
@@ -68,9 +68,15 @@ bool pdsc_is_fw_running(struct pdsc *pdsc)
 
 bool pdsc_is_fw_good(struct pdsc *pdsc)
 {
-	u8 gen = pdsc->fw_status & PDS_CORE_FW_STS_F_GENERATION;
+	bool fw_running = pdsc_is_fw_running(pdsc);
+	u8 gen;
 
-	return pdsc_is_fw_running(pdsc) && gen == pdsc->fw_generation;
+	/* Make sure to update the cached fw_status by calling
+	 * pdsc_is_fw_running() before getting the generation
+	 */
+	gen = pdsc->fw_status & PDS_CORE_FW_STS_F_GENERATION;
+
+	return fw_running && gen == pdsc->fw_generation;
 }
 
 static u8 pdsc_devcmd_status(struct pdsc *pdsc)
-- 
2.17.1


             reply	other threads:[~2023-06-05 19:53 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-06-05 19:51 Brett Creeley [this message]
2023-06-06  9:58 ` Simon Horman
2023-06-07  4:20 ` patchwork-bot+netdevbpf

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=20230605195116.49653-1-brett.creeley@amd.com \
    --to=brett.creeley@amd.com \
    --cc=davem@davemloft.net \
    --cc=edumazet@google.com \
    --cc=kuba@kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=netdev@vger.kernel.org \
    --cc=pabeni@redhat.com \
    --cc=shannon.nelson@amd.com \
    /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
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox

all inboxes | Powered by JetHome®